CA1296962C - Extendable electrocautery surgery apparatus and method - Google Patents
Extendable electrocautery surgery apparatus and methodInfo
- Publication number
- CA1296962C CA1296962C CA000584437A CA584437A CA1296962C CA 1296962 C CA1296962 C CA 1296962C CA 000584437 A CA000584437 A CA 000584437A CA 584437 A CA584437 A CA 584437A CA 1296962 C CA1296962 C CA 1296962C
- Authority
- CA
- Canada
- Prior art keywords
- forward end
- disposed
- electrical conductor
- slideable
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1402—Probes for open surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B2017/320004—Surgical cutting instruments abrasive
- A61B2017/320008—Scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B2017/32113—Surgical scalpels, knives; Accessories therefor with extendable or retractable guard or blade
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00184—Moving parts
- A61B2018/00196—Moving parts reciprocating lengthwise
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/0091—Handpieces of the surgical instrument or device
- A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
- A61B2018/0094—Types of switches or controllers
- A61B2018/00946—Types of switches or controllers slidable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/0091—Handpieces of the surgical instrument or device
- A61B2018/00916—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device
- A61B2018/00958—Handpieces of the surgical instrument or device with means for switching or controlling the main function of the instrument or device for switching between different working modes of the main function
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00964—Features of probes
- A61B2018/0097—Cleaning probe surfaces
- A61B2018/00976—Cleaning probe surfaces with scraping means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1475—Electrodes retractable in or deployable from a housing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/007—Aspiration
- A61B2218/008—Aspiration for smoke evacuation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/741—Suction control with means for varying suction manually
- A61M1/7413—Suction control with means for varying suction manually by changing the cross-section of the line
- A61M1/7415—Suction control with means for varying suction manually by changing the cross-section of the line by deformation of the fluid passage
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2209/00—Ancillary equipment
- A61M2209/04—Tools for specific apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/014—Application surgical instrument
Abstract
Abstract of the Disclosure An improved electrocautery method and instrument is configured to accept attachable extension units for effectively extending the utility of the instrument into deep surgical sites. Interlock features enable the instrument to be safely configured to any desired length for use as a vacuum probe and as a self-cleanable electrocautery or electro-surgical instrument under convenient manual controls including a slide element and control buttons and interlock switch positioned on the instrument.
Description
fi9~_ EXTENDABLE ELECTROCAUTERY
SURGERY APPARATUS AND METHOD
Related Case The subject matter of this application is related 5to the subject matter of U.S. Patent No. 4,307,720.
Backqround of the Invention Field of Invention This invention relates to electrocautery surgical instruments and more particularly to an electrocautery scalpel system having variably extendable suction and electrode elements to facilitate electrocautery surgery at deep locations within surrounding tissue.
Electrocautery instrument commonly rely upon high-voltage, high-frequency electrical signals of various waveforms ~o selectively sever, clamp or coagulate living tissue during surgical procedures. In addition, many such electrocautery instruments include integral vacuum conduits and associated suction apparatus for evacuating tissue fluids and volatized tissue materials that commonly accompany electrocautery incision of living tissue. Devices of these types are disclosed in the literature (see, for example, U.S.
~, 3~
~atents 1,311,494; 1,963,636; 2,002,594; 2,394,512; 3,662,151;
3,682,162; 3,82~,7B0; 3,835,842; 3,850,175; 3,884,237;
3,902,494; 3,906,955; 3,974,833; 3,9B7,795; 4,011,872;
4,112,950; and 4,562,838; and French Patent No. 73.30854).
Electrocautery instruments of these types also commonly employ a retractable electrode or a vacuum port to enhance the utility of the instrument during surgical procedures. One difficulty encountered with certain electrocautery scalpels having extendable and retractable electrodes is that the geometry of the instruments usually limits the depth in tissue to which the instruments can conveniently penetrate without e~panding the incision to accommodate the surgeon's hand. As certain surgical procedures progress and penetrate deeper into a surgical site, it is frequently desirable to extend the instrument to longer dimension with control over the retractable electrode in order to facilitate advancing the surgery into deep, confined sites.
Summarv of the Invention In accordance with the present invention, an improved electrocautery surgical instrument includes a retractable electrode and a vacuum conduit for selectively evacuating a surgical site, and also includes attachable extension units of various lengths for selectively estending the operational utility of the instrument as a surgical procedure progresses.
The vacuum port and slidable electrode/blade of the i~strument are thereby extended a selected dimension to facilitate deep ;96;~
surgical procedures in confined sites. Safety switching is included within the instrument to control application of high-voltage electrical signals to the electrode/blade and to permit the user to establish electrically inactive conditions during attachment and removal of extension units. The electrocautery surgical instrument thus configured according to the present invention facilitates surgical procedures in deep surgical sites as well as in shallow surgical sites without having to replace the instrument in the surgeon's hand during the surgical procedure.
Various aspects of this invention are as follows:
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
said circuit means including an interlock switch operable in conductive state and in non-conductive state and disposed to be actuated for operation in the non-conductive state in response to the electrical conductor ., ~25~96:~
3a being positioned near said rearward position along the slidable path thereof; said interlock switch including auxiliary circuit means disposed in the body for grounding the electrical conductor during operation in said non-conductive state.
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means slideably disposed on the body and coupled to the electrical conductor for selectively altering the position thereof along the slideable path and of the connector means between forward and rearward positions relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
switch means including at least one switch mounted in the body and including an actuator therefor positioned on the body for manually actuating said one switch for selectively applying electrical signal through said circuit means to the electrical conductor;
and said slider means including means oriented to shroud the actuator against manual operation thereof near the rearward position along the slideable path thereof.
'~b lX.'t~;96~
3b Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body of manually controlling vacuum at said port;
said port including a receptacle which extends to said forward end of the body for receiving a conduit in a front end thereof near said forward end of the body and including an aperture in the receptacle that communicates with the vacuum conduit for limiting the pressure in the vacuum conduit when said front end of the receptacle is occluded:
extension means including a conduit for attachment to the receptacle and electrode means for attachment with said connector means for conducting electrical signal therefrom, and including support means attached '~b '3~i~
to the conduit for slideably supportiny the electrode means therein;
said extension means disposed to attach to said body with the conduit thereof inserted into said receptacle to occlude said aperture and with the electrode means attached to said connector means.
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement in the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
support means for supporting an electrode therein disposed to be attached to said body near said for~ard end thereof; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from a forward end of the support means in a forward slideable position thereof and having a rearwardly extending portion disposed to attach to said connector means.
,~
i96;~
3d Surgical apparatus comprising:
an elongated body having a~ electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body for manually controlling vacuum at said port;
support means for supporting a vacuum port near a forward end thereof and having a conduit coupled thereto and extending rearwardly from the support means for attachment to said port of said body; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from said forward end of the support means in a forward slideable position thereof, and having a rearwardly extending portion disposed to attach to said connector means of said body.
' ~2~
, . ~ .
A method of operating an electrosurgical instrument including a vacuum conduit with a port disposed in a forward end of the instrument and including a manually-controlled slideable electrode extendable from said forward end for controllably applying electrical signal to tissue, the method comprising the steps of:
detachably substituting electrode means for the electrode to extend from said forward end of the instrument;
detachably extending the vacuum conduit from the port in said forward end of the instrument to an extended port at a location near the electrode means;
and slideably supporting the electrode means near the extended port of the vacuum conduit for selectively manually extending the electrode means relative to said location in response to the manual control thereof at the instrument.
Description of the Drawinas Figure 1 is a partial perspective view of the electrocautery surgical instrument with an attached extension unit; and Figure 2 is a side view of the extension unit of Figure l; and Figure 3 is a partial sectional assembly view of the extension unit of Figure 1; and Figure 4 is an exploded assembly view of the instrument of Figure l; and Figure 5 is a sectional view of the interlock switch of Figure 4: and Figure 6 is a sectional view of another embodiment of the interlock switch according to the present invention.
Figure 7(a) and (b) are plan and sectional views, respectively, of the body of the electrode scraping means:
and ;9~, ~
Figures 8(a) and (b) are plan and side views, respectively, of a flat, blade-like electrode for assembly within the body of Figure 7.
Description of the Preferred Embodiment Referring now to Figure 1, there is shown a perspective view of the electrocautery instrument 9 with an extension unit 11 attached to the front end of the instrument.
Specifically, the retra~table electrode/blade 13 is extended forward and is retractable within the extension unit 11, and the vacuum port 15 is also extended forward from the instrument 9 to provide substantially the same blade 13 and port 15 characteristic at the front of the extension unit 11 as are available on the front of the instrument 9 without the extension unit 11 in place. The extension units 11 may be of variable length as desired to facilitate deep surgical procedures, and may ~e attached and removed as desired by press-fit or snap-toggle attachment on the front of the instrument 9. A manually-slidable element 17 is attached to the electrode 13 to control the extent of the protrusion of the electrode 13 from the front of the instrument 9, or from the front of the attached estension unit 11. Push buttons 19 and 21 are provided to control application of different high-voltage, high-freguency waveforms to the electrode 13 for either incising or cauterizing tissue in known manner. In addition, the guide opening for the electrode 13 at the front of the extension unit 11 may be disposed closely about the l~~fi9~i~
'~lade 13 to scrape off adherent coagulum and tissue materials as the electrode is retracted therethrough in response to manual activation of the slide element 17. The portion 27 of electrode 13 that is exposed is insulated to facilitate manipulation of the instrument within surrounding tissue without undesirably discharging electrical signals to surrounding tissue in the region 27 between the electrode 13 and the front~of the un1t 9. A decompression port 29 is disposed in at least one lateral dimension from the vacuum port 15 to control the maximum pressure differential that can be developed at the vacuum port 15 under conditions of the port 15 being occluded by tissue which might be damaged by excessive suction.
~ eferring now to Figure 2, there is shown a side view of the extension unit 11. The lower tube 31 is the vacuum conduit with the vacuum port 15 and decompression port 29. The upper electrode 13 and connecting conductor 33 is insula~ed 35 over the region 27 that extends between the instrument 9 and the exposed electrode 13. The body 37 of the extension unit 11 may be ~elded, glued or otherwise attached to the vacuum tube 31, and serves as a guide for the electrode 13 which is slideably mounted therein. The electrode 13 may be needle-like, or generally flat (i.e., its width is greater than the thickness) to serve as a surgical blade. The body 37 may include a scraping guide 39 for removing adherent coagulum and tissue material as the electrode 13 and the conductor 33 to which it is attached is withdrawn into and through the body 37.
1 ~!t~
The sectional view of Figure 3 illustrates the attachment of the vacuum tube 31 to the body 37. Also, the electrode~blade 13 portion of the conductor 33 is shown disposed to slide within the guide way 41 in the body 37 through and past the scraping means 39 at the forward end thereof. Alternative embodiments of scraping means are described herein with reference to Figures 7 and 8.
Referring now to the exploded assembly drawing of Figure 4, there is shown the internal features of the instrument 9 which accommodate attachment of the extension unit 11 on the front end thereof. Specifically, the right and left half sections 43, ~5 of the instrument 9 are disposed to house the switches, electrode, manual slider, vacuum conduit and valving, and associated wiring to form the electrocautery instrument when assembled as shown. The vacuum conduit or suction tube 47 in the lower portion of the sections 43,45 is positioned in fluid-tight engagement 49 with the vacuum port 51 in the forward end of the instrument 9, which vacuum port has an inner diameter ~or other cross-sectional dimensions) that receive therein the attachment end of the vacuum conduit 31 of the estension unit 11 in press-fitted, fluid-tight engagement.
Alternatively, jam taper fit, or threaded engagement, or snap-fitting o-ring on an annular recess may be used to seal and secure the instrument and extension unit together as well as form a continuation of the vacuum conduit 47, 31. Also, the vacuum port 51 of the instrument 9 may have a decompression .~
~ort 53 for limiting the pressure differential at the port, as previously descri~ed with reference to the ports lS, 29 on the extension unit 11. This decompression port 53 is disposed within a socket or receptacle of the vacuum port 51 to be sealed off by insertion into such socket or receptacle of the connecting end of the vacuum conduit 31 of the estension unit 11. The vacuum conduit is therefore extended forward to the vacuum and decompression ports lS, 29 of the estension unit 11 when the extension unit 11 is properly attached to the front of the instrument ~. This vacuum conduit may be connected via a suitable control valve such as a roller 55 disposed to manually pinch off the flexible conduit 47 that connects to a remote vacuum supply (not shown). In this way, the operating surgeon may control the application of suction at a surgical site by positioning the vacuum port 15 (or 51, if an extension unit 11 is not attached) and by manually rotating the pinch roller 55 to selectively pinch off the flexible conduit 47, and thereby control the vacuum action at the port 15.
In the upper portion of the instrument 9, the slide element 17 is disposed to slide longitudinally in tracks or grooves 61 in the body of the instrument 9. The tab 68 that protrudes from the slide element 17 through a groove 65 engages the slide electrode 100 at the recess 101 to thereby control retraction and extension of the electrode 71 under manual control of the slide element 17. The electrode conductor 69, in one embodiment of the present invention, may slide in electrical contact through contactor 67 to engage the safety 1 ~t~ 3~i~
witch 85 in its rearward-most retracted position. The electrode 71 attaches 73 to the slide electrode 100 at the forward end thereof ~or gripping the electrode/blade 71 (or the contact end 33 of the electrode conductor 35 of an extension unit 11) by friction or snap-toggle engagement, or the like, in known manner. ~he switch plate 63 includes conventional dome-type switches 79, 81 which may be activated by the push buttons 75, 77 that are mounted in the body of the instrument 9. Thus, the push-button switches 79, 81 may be manually activated when the slide element 17 (and therefore the electrode/blade 71 or 13) is positioned in the forward location. In the rearward position of the slide element 17, one or more of the push-button switches 79, 81 are shrouded by the slide element 17 as protection against inadvertent manual activation. Additionally, the rearward end of the electrode conductor 69, 71, i5 disposed to engage an interlock switch 85 that is wired into the circuit including the electrode and a source (not shown) of high-frequency, high-voltage electrical signals. Thus, electrical signals for either severing or cauterizing tissue are connected from such source via a cable 87 (which may be integral with the vacuum conduit for convenience) to the switches 79, 81 on the switch plate 63.
The interlock switcb 85 is thus disposed to cut off the application of all electrical signals when the electrode conductor 69 is in the rearward-most position. In this position, the slide element 17 shrouds either or both of the push buttons 75, 77 as a further safety interlock feature while the electrode is withdrawn rearwardly into the ~sdy of .he instrument 9 (or into the body 37 of an e~tension unit 11). Scraping ~eans 89 as illustrated in Figure 7, may be disposed about the electrode~blade 71 to dislodge adherent coagulum and tissue material as the electrode/blade 71 is withdrawn into the body under manual control of the slide element 17. Thus, during operating procedures, the electrode/blade 71 (or 13 of an extension unit 11) may be withdrawn into the body of the instrument 9 (or of the e~tension unit 11) under manual control of the slide element 17 to clean the blade and to configure the front end of the unit to facilitate its use simply as a vacuum probe to evacuate a surgical site. In this configuration, the push buttons 75, 77 are shrouded against inadvertent activation, and the roller 55 may be manually activated to pinch and unpinch the flexib!e tubing 47, as desired. Alternatively, the electrode 71 (or 13 of an extension unit 11) may be advanced under manual control of the slide element 17 to protrude from the instrument 9 (or extension unit 11). In this configuration, the push buttons 75, 77 are exposed and may be manually activated to control the supply of either severing or coagulating electrical signals to the electrode/blade via the interlock switch 85.
Referring now to Figure 5, there is shown a sectional view of one emodiment of the interlock switch 85 which is disposed within an enclosing housing 91 to be actuated by the rearward end of the electrode conductor 69. Thus, the control leads 93, 95 (which may conduct low-voltage control signals~
from the push button switches 79, 81 on the contact plate 63 connect via the cable 87 to a conventional source (not shown) g _ 1 ~t~
f high-voltage, high-frequency signal, and such signal is thus suppli~d through a powe~ ~anduc~or 86 in the ra~le 87 aDd through contact 84 of the interlock switch 85 to the switch plate 63, slide contactor 67, and electrode 71 (or 13). In the rearward-most or retracted position of the electrode conductor 69, the power conductor 86 may be shunted to ground through alternate contact 88 and a ground conductor 90 in the cable 87.
In another embodimen~ of the interlock switch 85 according to the present invention, as illustrated in the sectional view of Figure 6, the electrode conductor 69 of Figure 4 is formed in a printed-circuit like structure 103 including a non conductive central region 105 having a recess 107 to receive the tab 68 of the slide element 17, and a rearward section 109 that includes a conductor 110 disposed on an insulating layer 112. The conductor 110, of course, connects to the attaching means (or universal chuck) 73, and is slideably engaged by contacts 114 and 119. Electrical signal on contacts 114 .(from a signal generator not shown) is applied to the electrode 71 ~or 13 of an extender unit) while such electrode is in extended position under the manual control of the slide element 17. However, the insulating layer 112 of the electrode conductor 69 includes an aperture 116 at a location approrimately at the ma~imum rearward estent of travel (i.e.
retracted electrode) and in line with the contact 114 .
~nother sliding contact 118 is disposed to connect to the contact 114 only within the aperture 116, and to be insulated therefrom by the insulating layer 112 otherwise. In the ;9~
etracted position of structure 103, the slidinq contact 119 may also be i~sultated ~y 112 ~ro~ con~uct~I ~20 ~5ed upon the particular pattern of the conductor 110. Contact 118 may be connected back to ground via the shield on cable 87.
Therefore, the electrode 13 may be effectively grounded while in the retracted position to prevent inadvertent electrical excitation of the electrode blade 71 (or 13) during configuration and use o the instrument as a vacuum probe, or during attachment of detachment of an extension unit.
Referring now to Figure 7 a and b, here are shown plan and sectional views, respectively, of the scraping means B9 for guiding and scraping the electrode blade illustrated in Figures 8a and b. Specifically, these views illustrate the ferrule-like structure 89 of Figure 7 that may conveniently snap into place near the forward edge of the instrument (or of an extension unit) for easy replacement of electrodes of different configurations (e.g. flat or needle-lihe). Thus, the scraping means 89 includes a generally hollow body through which the electrode 13 of Figure 8 slides, and includes a clcse-fittinq forward aperture 121 which engages the blade portion 123 of the electrode 13 is sliding, contacting relationship. The rear portion of the body 89 includes resilient jaws-like structure 125 to facilitate assembly of the electrode 13 (including the section 127 of expanded diameter) into the body from the rearward end toward the forward end.
The jaws-like structure return to position to retain the electrode 13 ent,rely to captivated and slideable within the body 89. The section 127 is received by and retained in the ttachement means 73 to facilitate the mechanical sliding motio~n ~f t~e el~ctrode 13 within the body ~9-under ma~ual control of the user. Spring-like protrusions 129 formed on the body 89 about its central section facilitate the snap-in retention of the body 89 and captivated electrode 13 within and near the forward end of the instrument. ~hus, electrodes 13 of different shapes and lengths may be conveniently inserted in and removed from the instrument ~or e~tension units) as the suryical operation proceeds.
In operation, the instrument 9 (with or without attached extension unit 11) may be configured to operate either as a vacuum probe alone (with the electrode/blade 71, 13 retracted) or as an electrosurgical instrument with the electrode/blade 13, 71 extended into operational position. In the latter configuration, the electrical control buttons are exposed and the safety, interlocking switch is actuated to permit high-voltage, high-frequency electrical signals to be supplied to the protruding electrode~blade under control of one or more of the uncovered, exposed push buttons. The operational length of the instrument may be altered by attaching or detaching estension units of desired length. The vacuum port of the instrument is altered by attachment of an extension unit, and the electrode/blade of the estension unit is electrically connected and mechanically attached for convenient manual e~tension and retraction csntrol from the instrument.
Therefore, the method and apparatus of the present invention facili-t~t4s the convenient ~ten~ion of an electrocautery surgical instrument to accommodate surgical procedures performed deep within surrounding tissue while providing interlock features that enhance the safety and utility of the instrument during attachment and detachment of e~tension units and during its operation as a vacuum probe.
SURGERY APPARATUS AND METHOD
Related Case The subject matter of this application is related 5to the subject matter of U.S. Patent No. 4,307,720.
Backqround of the Invention Field of Invention This invention relates to electrocautery surgical instruments and more particularly to an electrocautery scalpel system having variably extendable suction and electrode elements to facilitate electrocautery surgery at deep locations within surrounding tissue.
Electrocautery instrument commonly rely upon high-voltage, high-frequency electrical signals of various waveforms ~o selectively sever, clamp or coagulate living tissue during surgical procedures. In addition, many such electrocautery instruments include integral vacuum conduits and associated suction apparatus for evacuating tissue fluids and volatized tissue materials that commonly accompany electrocautery incision of living tissue. Devices of these types are disclosed in the literature (see, for example, U.S.
~, 3~
~atents 1,311,494; 1,963,636; 2,002,594; 2,394,512; 3,662,151;
3,682,162; 3,82~,7B0; 3,835,842; 3,850,175; 3,884,237;
3,902,494; 3,906,955; 3,974,833; 3,9B7,795; 4,011,872;
4,112,950; and 4,562,838; and French Patent No. 73.30854).
Electrocautery instruments of these types also commonly employ a retractable electrode or a vacuum port to enhance the utility of the instrument during surgical procedures. One difficulty encountered with certain electrocautery scalpels having extendable and retractable electrodes is that the geometry of the instruments usually limits the depth in tissue to which the instruments can conveniently penetrate without e~panding the incision to accommodate the surgeon's hand. As certain surgical procedures progress and penetrate deeper into a surgical site, it is frequently desirable to extend the instrument to longer dimension with control over the retractable electrode in order to facilitate advancing the surgery into deep, confined sites.
Summarv of the Invention In accordance with the present invention, an improved electrocautery surgical instrument includes a retractable electrode and a vacuum conduit for selectively evacuating a surgical site, and also includes attachable extension units of various lengths for selectively estending the operational utility of the instrument as a surgical procedure progresses.
The vacuum port and slidable electrode/blade of the i~strument are thereby extended a selected dimension to facilitate deep ;96;~
surgical procedures in confined sites. Safety switching is included within the instrument to control application of high-voltage electrical signals to the electrode/blade and to permit the user to establish electrically inactive conditions during attachment and removal of extension units. The electrocautery surgical instrument thus configured according to the present invention facilitates surgical procedures in deep surgical sites as well as in shallow surgical sites without having to replace the instrument in the surgeon's hand during the surgical procedure.
Various aspects of this invention are as follows:
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
said circuit means including an interlock switch operable in conductive state and in non-conductive state and disposed to be actuated for operation in the non-conductive state in response to the electrical conductor ., ~25~96:~
3a being positioned near said rearward position along the slidable path thereof; said interlock switch including auxiliary circuit means disposed in the body for grounding the electrical conductor during operation in said non-conductive state.
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means slideably disposed on the body and coupled to the electrical conductor for selectively altering the position thereof along the slideable path and of the connector means between forward and rearward positions relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
switch means including at least one switch mounted in the body and including an actuator therefor positioned on the body for manually actuating said one switch for selectively applying electrical signal through said circuit means to the electrical conductor;
and said slider means including means oriented to shroud the actuator against manual operation thereof near the rearward position along the slideable path thereof.
'~b lX.'t~;96~
3b Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body of manually controlling vacuum at said port;
said port including a receptacle which extends to said forward end of the body for receiving a conduit in a front end thereof near said forward end of the body and including an aperture in the receptacle that communicates with the vacuum conduit for limiting the pressure in the vacuum conduit when said front end of the receptacle is occluded:
extension means including a conduit for attachment to the receptacle and electrode means for attachment with said connector means for conducting electrical signal therefrom, and including support means attached '~b '3~i~
to the conduit for slideably supportiny the electrode means therein;
said extension means disposed to attach to said body with the conduit thereof inserted into said receptacle to occlude said aperture and with the electrode means attached to said connector means.
Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement in the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
support means for supporting an electrode therein disposed to be attached to said body near said for~ard end thereof; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from a forward end of the support means in a forward slideable position thereof and having a rearwardly extending portion disposed to attach to said connector means.
,~
i96;~
3d Surgical apparatus comprising:
an elongated body having a~ electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body for manually controlling vacuum at said port;
support means for supporting a vacuum port near a forward end thereof and having a conduit coupled thereto and extending rearwardly from the support means for attachment to said port of said body; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from said forward end of the support means in a forward slideable position thereof, and having a rearwardly extending portion disposed to attach to said connector means of said body.
' ~2~
, . ~ .
A method of operating an electrosurgical instrument including a vacuum conduit with a port disposed in a forward end of the instrument and including a manually-controlled slideable electrode extendable from said forward end for controllably applying electrical signal to tissue, the method comprising the steps of:
detachably substituting electrode means for the electrode to extend from said forward end of the instrument;
detachably extending the vacuum conduit from the port in said forward end of the instrument to an extended port at a location near the electrode means;
and slideably supporting the electrode means near the extended port of the vacuum conduit for selectively manually extending the electrode means relative to said location in response to the manual control thereof at the instrument.
Description of the Drawinas Figure 1 is a partial perspective view of the electrocautery surgical instrument with an attached extension unit; and Figure 2 is a side view of the extension unit of Figure l; and Figure 3 is a partial sectional assembly view of the extension unit of Figure 1; and Figure 4 is an exploded assembly view of the instrument of Figure l; and Figure 5 is a sectional view of the interlock switch of Figure 4: and Figure 6 is a sectional view of another embodiment of the interlock switch according to the present invention.
Figure 7(a) and (b) are plan and sectional views, respectively, of the body of the electrode scraping means:
and ;9~, ~
Figures 8(a) and (b) are plan and side views, respectively, of a flat, blade-like electrode for assembly within the body of Figure 7.
Description of the Preferred Embodiment Referring now to Figure 1, there is shown a perspective view of the electrocautery instrument 9 with an extension unit 11 attached to the front end of the instrument.
Specifically, the retra~table electrode/blade 13 is extended forward and is retractable within the extension unit 11, and the vacuum port 15 is also extended forward from the instrument 9 to provide substantially the same blade 13 and port 15 characteristic at the front of the extension unit 11 as are available on the front of the instrument 9 without the extension unit 11 in place. The extension units 11 may be of variable length as desired to facilitate deep surgical procedures, and may ~e attached and removed as desired by press-fit or snap-toggle attachment on the front of the instrument 9. A manually-slidable element 17 is attached to the electrode 13 to control the extent of the protrusion of the electrode 13 from the front of the instrument 9, or from the front of the attached estension unit 11. Push buttons 19 and 21 are provided to control application of different high-voltage, high-freguency waveforms to the electrode 13 for either incising or cauterizing tissue in known manner. In addition, the guide opening for the electrode 13 at the front of the extension unit 11 may be disposed closely about the l~~fi9~i~
'~lade 13 to scrape off adherent coagulum and tissue materials as the electrode is retracted therethrough in response to manual activation of the slide element 17. The portion 27 of electrode 13 that is exposed is insulated to facilitate manipulation of the instrument within surrounding tissue without undesirably discharging electrical signals to surrounding tissue in the region 27 between the electrode 13 and the front~of the un1t 9. A decompression port 29 is disposed in at least one lateral dimension from the vacuum port 15 to control the maximum pressure differential that can be developed at the vacuum port 15 under conditions of the port 15 being occluded by tissue which might be damaged by excessive suction.
~ eferring now to Figure 2, there is shown a side view of the extension unit 11. The lower tube 31 is the vacuum conduit with the vacuum port 15 and decompression port 29. The upper electrode 13 and connecting conductor 33 is insula~ed 35 over the region 27 that extends between the instrument 9 and the exposed electrode 13. The body 37 of the extension unit 11 may be ~elded, glued or otherwise attached to the vacuum tube 31, and serves as a guide for the electrode 13 which is slideably mounted therein. The electrode 13 may be needle-like, or generally flat (i.e., its width is greater than the thickness) to serve as a surgical blade. The body 37 may include a scraping guide 39 for removing adherent coagulum and tissue material as the electrode 13 and the conductor 33 to which it is attached is withdrawn into and through the body 37.
1 ~!t~
The sectional view of Figure 3 illustrates the attachment of the vacuum tube 31 to the body 37. Also, the electrode~blade 13 portion of the conductor 33 is shown disposed to slide within the guide way 41 in the body 37 through and past the scraping means 39 at the forward end thereof. Alternative embodiments of scraping means are described herein with reference to Figures 7 and 8.
Referring now to the exploded assembly drawing of Figure 4, there is shown the internal features of the instrument 9 which accommodate attachment of the extension unit 11 on the front end thereof. Specifically, the right and left half sections 43, ~5 of the instrument 9 are disposed to house the switches, electrode, manual slider, vacuum conduit and valving, and associated wiring to form the electrocautery instrument when assembled as shown. The vacuum conduit or suction tube 47 in the lower portion of the sections 43,45 is positioned in fluid-tight engagement 49 with the vacuum port 51 in the forward end of the instrument 9, which vacuum port has an inner diameter ~or other cross-sectional dimensions) that receive therein the attachment end of the vacuum conduit 31 of the estension unit 11 in press-fitted, fluid-tight engagement.
Alternatively, jam taper fit, or threaded engagement, or snap-fitting o-ring on an annular recess may be used to seal and secure the instrument and extension unit together as well as form a continuation of the vacuum conduit 47, 31. Also, the vacuum port 51 of the instrument 9 may have a decompression .~
~ort 53 for limiting the pressure differential at the port, as previously descri~ed with reference to the ports lS, 29 on the extension unit 11. This decompression port 53 is disposed within a socket or receptacle of the vacuum port 51 to be sealed off by insertion into such socket or receptacle of the connecting end of the vacuum conduit 31 of the estension unit 11. The vacuum conduit is therefore extended forward to the vacuum and decompression ports lS, 29 of the estension unit 11 when the extension unit 11 is properly attached to the front of the instrument ~. This vacuum conduit may be connected via a suitable control valve such as a roller 55 disposed to manually pinch off the flexible conduit 47 that connects to a remote vacuum supply (not shown). In this way, the operating surgeon may control the application of suction at a surgical site by positioning the vacuum port 15 (or 51, if an extension unit 11 is not attached) and by manually rotating the pinch roller 55 to selectively pinch off the flexible conduit 47, and thereby control the vacuum action at the port 15.
In the upper portion of the instrument 9, the slide element 17 is disposed to slide longitudinally in tracks or grooves 61 in the body of the instrument 9. The tab 68 that protrudes from the slide element 17 through a groove 65 engages the slide electrode 100 at the recess 101 to thereby control retraction and extension of the electrode 71 under manual control of the slide element 17. The electrode conductor 69, in one embodiment of the present invention, may slide in electrical contact through contactor 67 to engage the safety 1 ~t~ 3~i~
witch 85 in its rearward-most retracted position. The electrode 71 attaches 73 to the slide electrode 100 at the forward end thereof ~or gripping the electrode/blade 71 (or the contact end 33 of the electrode conductor 35 of an extension unit 11) by friction or snap-toggle engagement, or the like, in known manner. ~he switch plate 63 includes conventional dome-type switches 79, 81 which may be activated by the push buttons 75, 77 that are mounted in the body of the instrument 9. Thus, the push-button switches 79, 81 may be manually activated when the slide element 17 (and therefore the electrode/blade 71 or 13) is positioned in the forward location. In the rearward position of the slide element 17, one or more of the push-button switches 79, 81 are shrouded by the slide element 17 as protection against inadvertent manual activation. Additionally, the rearward end of the electrode conductor 69, 71, i5 disposed to engage an interlock switch 85 that is wired into the circuit including the electrode and a source (not shown) of high-frequency, high-voltage electrical signals. Thus, electrical signals for either severing or cauterizing tissue are connected from such source via a cable 87 (which may be integral with the vacuum conduit for convenience) to the switches 79, 81 on the switch plate 63.
The interlock switcb 85 is thus disposed to cut off the application of all electrical signals when the electrode conductor 69 is in the rearward-most position. In this position, the slide element 17 shrouds either or both of the push buttons 75, 77 as a further safety interlock feature while the electrode is withdrawn rearwardly into the ~sdy of .he instrument 9 (or into the body 37 of an e~tension unit 11). Scraping ~eans 89 as illustrated in Figure 7, may be disposed about the electrode~blade 71 to dislodge adherent coagulum and tissue material as the electrode/blade 71 is withdrawn into the body under manual control of the slide element 17. Thus, during operating procedures, the electrode/blade 71 (or 13 of an extension unit 11) may be withdrawn into the body of the instrument 9 (or of the e~tension unit 11) under manual control of the slide element 17 to clean the blade and to configure the front end of the unit to facilitate its use simply as a vacuum probe to evacuate a surgical site. In this configuration, the push buttons 75, 77 are shrouded against inadvertent activation, and the roller 55 may be manually activated to pinch and unpinch the flexib!e tubing 47, as desired. Alternatively, the electrode 71 (or 13 of an extension unit 11) may be advanced under manual control of the slide element 17 to protrude from the instrument 9 (or extension unit 11). In this configuration, the push buttons 75, 77 are exposed and may be manually activated to control the supply of either severing or coagulating electrical signals to the electrode/blade via the interlock switch 85.
Referring now to Figure 5, there is shown a sectional view of one emodiment of the interlock switch 85 which is disposed within an enclosing housing 91 to be actuated by the rearward end of the electrode conductor 69. Thus, the control leads 93, 95 (which may conduct low-voltage control signals~
from the push button switches 79, 81 on the contact plate 63 connect via the cable 87 to a conventional source (not shown) g _ 1 ~t~
f high-voltage, high-frequency signal, and such signal is thus suppli~d through a powe~ ~anduc~or 86 in the ra~le 87 aDd through contact 84 of the interlock switch 85 to the switch plate 63, slide contactor 67, and electrode 71 (or 13). In the rearward-most or retracted position of the electrode conductor 69, the power conductor 86 may be shunted to ground through alternate contact 88 and a ground conductor 90 in the cable 87.
In another embodimen~ of the interlock switch 85 according to the present invention, as illustrated in the sectional view of Figure 6, the electrode conductor 69 of Figure 4 is formed in a printed-circuit like structure 103 including a non conductive central region 105 having a recess 107 to receive the tab 68 of the slide element 17, and a rearward section 109 that includes a conductor 110 disposed on an insulating layer 112. The conductor 110, of course, connects to the attaching means (or universal chuck) 73, and is slideably engaged by contacts 114 and 119. Electrical signal on contacts 114 .(from a signal generator not shown) is applied to the electrode 71 ~or 13 of an extender unit) while such electrode is in extended position under the manual control of the slide element 17. However, the insulating layer 112 of the electrode conductor 69 includes an aperture 116 at a location approrimately at the ma~imum rearward estent of travel (i.e.
retracted electrode) and in line with the contact 114 .
~nother sliding contact 118 is disposed to connect to the contact 114 only within the aperture 116, and to be insulated therefrom by the insulating layer 112 otherwise. In the ;9~
etracted position of structure 103, the slidinq contact 119 may also be i~sultated ~y 112 ~ro~ con~uct~I ~20 ~5ed upon the particular pattern of the conductor 110. Contact 118 may be connected back to ground via the shield on cable 87.
Therefore, the electrode 13 may be effectively grounded while in the retracted position to prevent inadvertent electrical excitation of the electrode blade 71 (or 13) during configuration and use o the instrument as a vacuum probe, or during attachment of detachment of an extension unit.
Referring now to Figure 7 a and b, here are shown plan and sectional views, respectively, of the scraping means B9 for guiding and scraping the electrode blade illustrated in Figures 8a and b. Specifically, these views illustrate the ferrule-like structure 89 of Figure 7 that may conveniently snap into place near the forward edge of the instrument (or of an extension unit) for easy replacement of electrodes of different configurations (e.g. flat or needle-lihe). Thus, the scraping means 89 includes a generally hollow body through which the electrode 13 of Figure 8 slides, and includes a clcse-fittinq forward aperture 121 which engages the blade portion 123 of the electrode 13 is sliding, contacting relationship. The rear portion of the body 89 includes resilient jaws-like structure 125 to facilitate assembly of the electrode 13 (including the section 127 of expanded diameter) into the body from the rearward end toward the forward end.
The jaws-like structure return to position to retain the electrode 13 ent,rely to captivated and slideable within the body 89. The section 127 is received by and retained in the ttachement means 73 to facilitate the mechanical sliding motio~n ~f t~e el~ctrode 13 within the body ~9-under ma~ual control of the user. Spring-like protrusions 129 formed on the body 89 about its central section facilitate the snap-in retention of the body 89 and captivated electrode 13 within and near the forward end of the instrument. ~hus, electrodes 13 of different shapes and lengths may be conveniently inserted in and removed from the instrument ~or e~tension units) as the suryical operation proceeds.
In operation, the instrument 9 (with or without attached extension unit 11) may be configured to operate either as a vacuum probe alone (with the electrode/blade 71, 13 retracted) or as an electrosurgical instrument with the electrode/blade 13, 71 extended into operational position. In the latter configuration, the electrical control buttons are exposed and the safety, interlocking switch is actuated to permit high-voltage, high-frequency electrical signals to be supplied to the protruding electrode~blade under control of one or more of the uncovered, exposed push buttons. The operational length of the instrument may be altered by attaching or detaching estension units of desired length. The vacuum port of the instrument is altered by attachment of an extension unit, and the electrode/blade of the estension unit is electrically connected and mechanically attached for convenient manual e~tension and retraction csntrol from the instrument.
Therefore, the method and apparatus of the present invention facili-t~t4s the convenient ~ten~ion of an electrocautery surgical instrument to accommodate surgical procedures performed deep within surrounding tissue while providing interlock features that enhance the safety and utility of the instrument during attachment and detachment of e~tension units and during its operation as a vacuum probe.
Claims (7)
1. Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
said circuit means including an interlock switch operable in conductive state and in non-conductive state and disposed to be actuated for operation in the non-conductive state in response to the electrical conductor being positioned near said rearward position along the slidable path thereof; said interlock switch including auxiliary circuit means disposed in the body for grounding the electrical conductor during operation in said non-conductive state.
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
said circuit means including an interlock switch operable in conductive state and in non-conductive state and disposed to be actuated for operation in the non-conductive state in response to the electrical conductor being positioned near said rearward position along the slidable path thereof; said interlock switch including auxiliary circuit means disposed in the body for grounding the electrical conductor during operation in said non-conductive state.
2. Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means slideably disposed on the body and coupled to the electrical conductor for selectively altering the position thereof along the slideable path and of the connector means between forward and rearward positions relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
switch means including at least one switch mounted in the body and including an actuator therefor positioned on the body for manually actuating said one switch for selectively applying electrical signal through said circuit means to the electrical conductor;
and said slider means including means oriented to shroud the actuator against manual operation thereof near the rearward position along the slideable path thereof.
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means slideably disposed on the body and coupled to the electrical conductor for selectively altering the position thereof along the slideable path and of the connector means between forward and rearward positions relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
switch means including at least one switch mounted in the body and including an actuator therefor positioned on the body for manually actuating said one switch for selectively applying electrical signal through said circuit means to the electrical conductor;
and said slider means including means oriented to shroud the actuator against manual operation thereof near the rearward position along the slideable path thereof.
3. Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body of manually controlling vacuum at said port;
said port including a receptacle which extends to said forward end of the body for receiving a conduit in a front end thereof near said forward end of the body and including an aperture in the receptacle that communicates with the vacuum conduit for limiting the pressure in the vacuum conduit when said front end of the receptacle is occluded:
extension means including a conduit for attachment to the receptacle and electrode means for attachment with said connector means for conducting electrical signal therefrom, and including support means attached to the conduit for slideably supporting the electrode means therein;
said extension means disposed to attach to said body with the conduit thereof inserted into said receptacle to occlude said aperture and with the electrode means attached to said connector means.
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body of manually controlling vacuum at said port;
said port including a receptacle which extends to said forward end of the body for receiving a conduit in a front end thereof near said forward end of the body and including an aperture in the receptacle that communicates with the vacuum conduit for limiting the pressure in the vacuum conduit when said front end of the receptacle is occluded:
extension means including a conduit for attachment to the receptacle and electrode means for attachment with said connector means for conducting electrical signal therefrom, and including support means attached to the conduit for slideably supporting the electrode means therein;
said extension means disposed to attach to said body with the conduit thereof inserted into said receptacle to occlude said aperture and with the electrode means attached to said connector means.
4. Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement in the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
support means for supporting an electrode therein disposed to be attached to said body near said forward end thereof; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from a forward end of the support means in a forward slideable position thereof and having a rearwardly extending portion disposed to attach to said connector means.
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement in the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
support means for supporting an electrode therein disposed to be attached to said body near said forward end thereof; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from a forward end of the support means in a forward slideable position thereof and having a rearwardly extending portion disposed to attach to said connector means.
5. Surgical apparatus comprising:
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body for manually controlling vacuum at said port;
support means for supporting a vacuum port near a forward end thereof and having a conduit coupled thereto and extending rearwardly from the support means for attachment to said port of said body; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from said forward end of the support means in a forward slideable position thereof, and having a rearwardly extending portion disposed to attach to said connector means of said body.
an elongated body having an electrical conductor positionable along a slideable path extending substantially therethrough toward a forward end thereof, and including connector means disposed near said forward end;
said connector means being disposed to receive a conductive element therein for selective slideable positioning thereof relative to said forward end in response to slideable movement of the electrical conductor;
slider means disposed on the body and coupled to the electrical conductor for selectively altering the position thereof and of the connector means between forward and rearward positions thereof relative to said forward end;
circuit means disposed in the body to be actuated by the electrical conductor for controlling the application of electrical signal thereto in response to the position of the electrical conductor along the slideable path thereof;
a vacuum conduit through the body including a port near said forward end thereof;
valve means for said vacuum conduit including a control element disposed to protrude from said body for manually controlling vacuum at said port;
support means for supporting a vacuum port near a forward end thereof and having a conduit coupled thereto and extending rearwardly from the support means for attachment to said port of said body; and electrode means for conducting electrical signal slideably disposed in the support means and including a portion thereof disposed to protrude from said forward end of the support means in a forward slideable position thereof, and having a rearwardly extending portion disposed to attach to said connector means of said body.
6. A method of operating an electrosurgical instrument including a vacuum conduit with a port disposed in a forward end of the instrument and including a manually-controlled slideable electrode extendable from said forward end for controllably applying electrical signal to tissue, the method comprising the steps of:
detachably substituting electrode means for the electrode to extend from said forward end of the instrument;
detachably extending the vacuum conduit from the port in said forward end of the instrument to an extended port at a location near the electrode means;
and slideably supporting the electrode means near the extended port of the vacuum conduit for selectively manually extending the electrode means relative to said location in response to the manual control thereof at the instrument.
detachably substituting electrode means for the electrode to extend from said forward end of the instrument;
detachably extending the vacuum conduit from the port in said forward end of the instrument to an extended port at a location near the electrode means;
and slideably supporting the electrode means near the extended port of the vacuum conduit for selectively manually extending the electrode means relative to said location in response to the manual control thereof at the instrument.
7. The method according to Claim 6 comprising the step of:
inhibiting the application of electrical signal in response to the positioning of the electrode means near a rearward slideable position thereof.
inhibiting the application of electrical signal in response to the positioning of the electrode means near a rearward slideable position thereof.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US125,652 | 1987-11-30 | ||
US07/125,652 US4919129A (en) | 1987-11-30 | 1987-11-30 | Extendable electrocautery surgery apparatus and method |
Publications (1)
Publication Number | Publication Date |
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CA1296962C true CA1296962C (en) | 1992-03-10 |
Family
ID=22420772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000584437A Expired - Lifetime CA1296962C (en) | 1987-11-30 | 1988-11-29 | Extendable electrocautery surgery apparatus and method |
Country Status (3)
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US (1) | US4919129A (en) |
JP (1) | JPH01195850A (en) |
CA (1) | CA1296962C (en) |
Families Citing this family (204)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5435805A (en) | 1992-08-12 | 1995-07-25 | Vidamed, Inc. | Medical probe device with optical viewing capability |
US5385544A (en) * | 1992-08-12 | 1995-01-31 | Vidamed, Inc. | BPH ablation method and apparatus |
US5370675A (en) * | 1992-08-12 | 1994-12-06 | Vidamed, Inc. | Medical probe device and method |
US5421819A (en) | 1992-08-12 | 1995-06-06 | Vidamed, Inc. | Medical probe device |
US5542915A (en) | 1992-08-12 | 1996-08-06 | Vidamed, Inc. | Thermal mapping catheter with ultrasound probe |
US5085657A (en) * | 1983-03-14 | 1992-02-04 | Ben Simhon Haim | Electrosurgical instrument |
US5035695A (en) * | 1987-11-30 | 1991-07-30 | Jaroy Weber, Jr. | Extendable electrocautery surgery apparatus and method |
US5009660A (en) * | 1989-09-15 | 1991-04-23 | Visx, Incorporated | Gas purging, eye fixation hand piece |
US5306238A (en) * | 1990-03-16 | 1994-04-26 | Beacon Laboratories, Inc. | Laparoscopic electrosurgical pencil |
US5071418A (en) * | 1990-05-16 | 1991-12-10 | Joseph Rosenbaum | Electrocautery surgical scalpel |
US5112302A (en) * | 1990-07-16 | 1992-05-12 | Cucin Robert L | Method and apparatus for performing liposuction |
US5246440A (en) * | 1990-09-13 | 1993-09-21 | Noord Andrew J Van | Electrosurgical knife |
US5084045A (en) * | 1990-09-17 | 1992-01-28 | Helenowski Tomasz K | Suction surgical instrument |
US5256138A (en) * | 1990-10-04 | 1993-10-26 | The Birtcher Corporation | Electrosurgical handpiece incorporating blade and conductive gas functionality |
US5100402A (en) * | 1990-10-05 | 1992-03-31 | Megadyne Medical Products, Inc. | Electrosurgical laparoscopic cauterization electrode |
US6394973B1 (en) | 1990-12-14 | 2002-05-28 | Robert L. Cucin | Power-assisted liposuction instrument with cauterizing cannula assembly |
US6346107B1 (en) * | 1990-12-14 | 2002-02-12 | Robert L. Cucin | Power-assisted liposuction instrument with cauterizing cannual assembly |
US7384417B2 (en) * | 1990-12-14 | 2008-06-10 | Cucin Robert L | Air-powered tissue-aspiration instrument system employing curved bipolar-type electro-cauterizing dual cannula assembly |
AU1416392A (en) * | 1991-02-06 | 1992-09-07 | Laparomed Corporation | Electrosurgical device |
US5226904A (en) * | 1991-02-08 | 1993-07-13 | Conmed Corporation | Electrosurgical instrument |
US5409453A (en) * | 1992-08-12 | 1995-04-25 | Vidamed, Inc. | Steerable medical probe with stylets |
DE4116970A1 (en) * | 1991-05-24 | 1992-11-26 | Heidmueller Harald | SURGICAL INSTRUMENT WITH INTERCHANGEABLE HANDLE |
US5688269A (en) * | 1991-07-10 | 1997-11-18 | Electroscope, Inc. | Electrosurgical apparatus for laparoscopic and like procedures |
US5662647A (en) * | 1991-07-22 | 1997-09-02 | Transamerican Technologies International | Electrode assembly for electrosurgical instrument |
US5242442A (en) * | 1991-09-18 | 1993-09-07 | Hirschfeld Jack J | Smoke aspirating electrosurgical device |
US5449356A (en) * | 1991-10-18 | 1995-09-12 | Birtcher Medical Systems, Inc. | Multifunctional probe for minimally invasive surgery |
US5197963A (en) * | 1991-12-02 | 1993-03-30 | Everest Medical Corporation | Electrosurgical instrument with extendable sheath for irrigation and aspiration |
US5261906A (en) * | 1991-12-09 | 1993-11-16 | Ralph Pennino | Electro-surgical dissecting and cauterizing instrument |
EP0547772A1 (en) * | 1991-12-16 | 1993-06-23 | Dexide, Inc. | Laparoscopic instrument |
US5496314A (en) * | 1992-05-01 | 1996-03-05 | Hemostatic Surgery Corporation | Irrigation and shroud arrangement for electrically powered endoscopic probes |
US5269781A (en) * | 1992-06-10 | 1993-12-14 | Hewell Iii Todd S | Suction-assisted electrocautery unit |
US5672153A (en) | 1992-08-12 | 1997-09-30 | Vidamed, Inc. | Medical probe device and method |
US5514131A (en) | 1992-08-12 | 1996-05-07 | Stuart D. Edwards | Method for the ablation treatment of the uvula |
US5470308A (en) | 1992-08-12 | 1995-11-28 | Vidamed, Inc. | Medical probe with biopsy stylet |
US5667488A (en) * | 1992-08-12 | 1997-09-16 | Vidamed, Inc. | Transurethral needle ablation device and method for the treatment of the prostate |
US5630794A (en) | 1992-08-12 | 1997-05-20 | Vidamed, Inc. | Catheter tip and method of manufacturing |
US5456662A (en) | 1993-02-02 | 1995-10-10 | Edwards; Stuart D. | Method for reducing snoring by RF ablation of the uvula |
US5720719A (en) | 1992-08-12 | 1998-02-24 | Vidamed, Inc. | Ablative catheter with conformable body |
US5300069A (en) * | 1992-08-12 | 1994-04-05 | Daniel Hunsberger | Electrosurgical apparatus for laparoscopic procedures and method of use |
US5720718A (en) | 1992-08-12 | 1998-02-24 | Vidamed, Inc. | Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities |
US5556377A (en) | 1992-08-12 | 1996-09-17 | Vidamed, Inc. | Medical probe apparatus with laser and/or microwave monolithic integrated circuit probe |
US5376087A (en) * | 1992-08-21 | 1994-12-27 | Habley Medical Technology Corporation | Multiple function cauterizing instrument |
US5314406A (en) * | 1992-10-09 | 1994-05-24 | Symbiosis Corporation | Endoscopic electrosurgical suction-irrigation instrument |
US5312327A (en) * | 1992-10-09 | 1994-05-17 | Symbiosis Corporation | Cautery override safety systems endoscopic electrosurgical suction-irrigation instrument |
US5350356A (en) * | 1992-10-09 | 1994-09-27 | Symbiosis Corporation | Endoscopic suction-irrigation instrument with insertable probe lockable in partially withdraw position |
US5380321A (en) * | 1992-11-04 | 1995-01-10 | Yoon; Inbae | Shielded energy transmitting surgical instrument and methods therefor |
US5318565A (en) * | 1992-11-12 | 1994-06-07 | Daniel B. Kuriloff | Suction cautery dissector |
US5693044A (en) * | 1992-12-11 | 1997-12-02 | Cosmescu; Ioan | Telescopic surgical device and method therefor |
WO1996006573A1 (en) * | 1992-12-18 | 1996-03-07 | Arthur D. Little Enterprises, Inc. | Retractable electro-suction device |
JPH08506259A (en) * | 1993-02-02 | 1996-07-09 | ヴィーダメッド インコーポレイテッド | Transurethral needle excision device and method |
US5417687A (en) * | 1993-04-30 | 1995-05-23 | Medical Scientific, Inc. | Bipolar electrosurgical trocar |
US5376089A (en) * | 1993-08-02 | 1994-12-27 | Conmed Corporation | Electrosurgical instrument |
US5451222A (en) * | 1994-03-16 | 1995-09-19 | Desentech, Inc. | Smoke evacuation system |
US5472442A (en) * | 1994-03-23 | 1995-12-05 | Valleylab Inc. | Moveable switchable electrosurgical handpiece |
US5674219A (en) * | 1994-10-06 | 1997-10-07 | Donaldson Company, Inc. | Electrosurgical smoke evacuator |
US5769841A (en) * | 1995-06-13 | 1998-06-23 | Electroscope, Inc. | Electrosurgical apparatus for laparoscopic and like procedures |
US6293942B1 (en) | 1995-06-23 | 2001-09-25 | Gyrus Medical Limited | Electrosurgical generator method |
AU710619B2 (en) | 1995-06-23 | 1999-09-23 | Gyrus Medical Limited | An electrosurgical instrument |
CA2224975A1 (en) | 1995-06-23 | 1997-01-09 | Gyrus Medical Limited | An electrosurgical instrument |
US6780180B1 (en) | 1995-06-23 | 2004-08-24 | Gyrus Medical Limited | Electrosurgical instrument |
US6015406A (en) | 1996-01-09 | 2000-01-18 | Gyrus Medical Limited | Electrosurgical instrument |
US6458125B1 (en) * | 1995-07-10 | 2002-10-01 | I. C. Medical, Inc. | Electro-surgical unit pencil apparatus and method therefor |
US7384423B1 (en) | 1995-07-13 | 2008-06-10 | Origin Medsystems, Inc. | Tissue dissection method |
US5556409A (en) * | 1995-08-04 | 1996-09-17 | Haining; Michael L. | Disposable scalpel |
US6013076A (en) | 1996-01-09 | 2000-01-11 | Gyrus Medical Limited | Electrosurgical instrument |
US6090106A (en) | 1996-01-09 | 2000-07-18 | Gyrus Medical Limited | Electrosurgical instrument |
USD384148S (en) * | 1996-03-18 | 1997-09-23 | Donaldson Company, Inc. | Smoke evacuator for an electrocautery scalpel |
US5792098A (en) * | 1996-06-19 | 1998-08-11 | C. R. Bard, Inc. | Suction and irrigation handpiece and tip with detachable tube |
GB9612993D0 (en) | 1996-06-20 | 1996-08-21 | Gyrus Medical Ltd | Electrosurgical instrument |
GB2314274A (en) | 1996-06-20 | 1997-12-24 | Gyrus Medical Ltd | Electrode construction for an electrosurgical instrument |
US6565561B1 (en) | 1996-06-20 | 2003-05-20 | Cyrus Medical Limited | Electrosurgical instrument |
US5890516A (en) * | 1996-08-12 | 1999-04-06 | Talamonti; Anthony R. | Stomach suction pump connector valve |
US6126682A (en) | 1996-08-13 | 2000-10-03 | Oratec Interventions, Inc. | Method for treating annular fissures in intervertebral discs |
WO1998007375A1 (en) * | 1996-08-22 | 1998-02-26 | The Trustees Of Columbia University | Endovascular flexible stapling device |
US6355034B2 (en) | 1996-09-20 | 2002-03-12 | Ioan Cosmescu | Multifunctional telescopic monopolar/bipolar surgical device and method therefor |
GB9626512D0 (en) | 1996-12-20 | 1997-02-05 | Gyrus Medical Ltd | An improved electrosurgical generator and system |
US5911700A (en) | 1997-03-11 | 1999-06-15 | Microaire Surgical Instruments | Power assisted liposuction and lipoinjection equipment |
GB9807303D0 (en) | 1998-04-03 | 1998-06-03 | Gyrus Medical Ltd | An electrode assembly for an electrosurgical instrument |
US6976957B1 (en) | 1998-06-22 | 2005-12-20 | Origin Medsystems, Inc. | Cannula-based surgical instrument and method |
US7326178B1 (en) | 1998-06-22 | 2008-02-05 | Origin Medsystems, Inc. | Vessel retraction device and method |
US6830546B1 (en) | 1998-06-22 | 2004-12-14 | Origin Medsystems, Inc. | Device and method for remote vessel ligation |
EP0979635A2 (en) | 1998-08-12 | 2000-02-16 | Origin Medsystems, Inc. | Tissue dissector apparatus |
US6090107A (en) * | 1998-10-20 | 2000-07-18 | Megadyne Medical Products, Inc. | Resposable electrosurgical instrument |
US6607528B1 (en) * | 1999-06-22 | 2003-08-19 | Senorx, Inc. | Shapeable electrosurgical scalpel |
US6197024B1 (en) | 1999-09-22 | 2001-03-06 | Scott Keith Sullivan | Adjustable electrocautery surgical apparatus |
US6409450B1 (en) * | 2000-01-12 | 2002-06-25 | Storage Technology Corporation | Library service port |
MXPA02006761A (en) | 2000-02-28 | 2003-10-14 | Conmed Corp | Electrosurgical blade with direct adhesion of silicon coating. |
ES2643763T3 (en) | 2000-03-06 | 2017-11-24 | Salient Surgical Technologies, Inc. | Fluid supply system and controller for electrosurgical devices |
US7811282B2 (en) | 2000-03-06 | 2010-10-12 | Salient Surgical Technologies, Inc. | Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereof |
US8048070B2 (en) | 2000-03-06 | 2011-11-01 | Salient Surgical Technologies, Inc. | Fluid-assisted medical devices, systems and methods |
US6293945B1 (en) | 2000-03-06 | 2001-09-25 | Everest Medical Corporation | Electrosurgical instrument with suction capability |
US8083736B2 (en) * | 2000-03-06 | 2011-12-27 | Salient Surgical Technologies, Inc. | Fluid-assisted medical devices, systems and methods |
US6558313B1 (en) | 2000-11-17 | 2003-05-06 | Embro Corporation | Vein harvesting system and method |
US6676677B2 (en) | 2001-05-11 | 2004-01-13 | Jeffrey A. Klein | Liposuction cannula with abrading apertures |
US6524307B1 (en) | 2001-10-05 | 2003-02-25 | Medtek Devices, Inc. | Smoke evacuation apparatus |
US20040030330A1 (en) * | 2002-04-18 | 2004-02-12 | Brassell James L. | Electrosurgery systems |
US7393354B2 (en) | 2002-07-25 | 2008-07-01 | Sherwood Services Ag | Electrosurgical pencil with drag sensing capability |
US7244257B2 (en) | 2002-11-05 | 2007-07-17 | Sherwood Services Ag | Electrosurgical pencil having a single button variable control |
US7235072B2 (en) | 2003-02-20 | 2007-06-26 | Sherwood Services Ag | Motion detector for controlling electrosurgical output |
WO2004080278A2 (en) * | 2003-03-06 | 2004-09-23 | Tissuelink Medical, Inc. | Fluid -assisted medical devices, systems and methods |
WO2004087235A2 (en) * | 2003-03-27 | 2004-10-14 | Cierra, Inc. | Methods and apparatus for treatment of patent foramen ovale |
US7186251B2 (en) * | 2003-03-27 | 2007-03-06 | Cierra, Inc. | Energy based devices and methods for treatment of patent foramen ovale |
US7165552B2 (en) * | 2003-03-27 | 2007-01-23 | Cierra, Inc. | Methods and apparatus for treatment of patent foramen ovale |
US7293562B2 (en) * | 2003-03-27 | 2007-11-13 | Cierra, Inc. | Energy based devices and methods for treatment of anatomic tissue defects |
US6939348B2 (en) | 2003-03-27 | 2005-09-06 | Cierra, Inc. | Energy based devices and methods for treatment of patent foramen ovale |
US8021362B2 (en) * | 2003-03-27 | 2011-09-20 | Terumo Kabushiki Kaisha | Methods and apparatus for closing a layered tissue defect |
US7972330B2 (en) | 2003-03-27 | 2011-07-05 | Terumo Kabushiki Kaisha | Methods and apparatus for closing a layered tissue defect |
US8105310B2 (en) * | 2003-05-21 | 2012-01-31 | Klein Jeffrey A | Infiltration cannula |
US20040236307A1 (en) * | 2003-05-21 | 2004-11-25 | Klein Jeffrey A. | Infiltration cannula |
US20040236313A1 (en) * | 2003-05-21 | 2004-11-25 | Klein Jeffrey A. | Infiltration cannula |
DE10323566B4 (en) * | 2003-05-26 | 2006-03-23 | Fehling Ag | Instrument for unipolar ablation of cardiac tissue |
US7311701B2 (en) * | 2003-06-10 | 2007-12-25 | Cierra, Inc. | Methods and apparatus for non-invasively treating atrial fibrillation using high intensity focused ultrasound |
US7285110B2 (en) | 2003-06-10 | 2007-10-23 | P. Rowan Smith, Jr. | Retractable hypodermic safety syringe |
US7198625B1 (en) | 2003-10-01 | 2007-04-03 | Stryker Corporation | Surgical instrument with retractable sheath |
EP3181084A1 (en) | 2003-11-14 | 2017-06-21 | Lina Medical ApS | Length adjustable electro-surgical pencil with suction means |
US7241294B2 (en) | 2003-11-19 | 2007-07-10 | Sherwood Services Ag | Pistol grip electrosurgical pencil with manual aspirator/irrigator and methods of using the same |
US7503917B2 (en) | 2003-11-20 | 2009-03-17 | Covidien Ag | Electrosurgical pencil with improved controls |
US7879033B2 (en) | 2003-11-20 | 2011-02-01 | Covidien Ag | Electrosurgical pencil with advanced ES controls |
US7156844B2 (en) * | 2003-11-20 | 2007-01-02 | Sherwood Services Ag | Electrosurgical pencil with improved controls |
US7156842B2 (en) | 2003-11-20 | 2007-01-02 | Sherwood Services Ag | Electrosurgical pencil with improved controls |
US7367975B2 (en) | 2004-06-21 | 2008-05-06 | Cierra, Inc. | Energy based devices and methods for treatment of anatomic tissue defects |
US20060041252A1 (en) | 2004-08-17 | 2006-02-23 | Odell Roger C | System and method for monitoring electrosurgical instruments |
US7422589B2 (en) * | 2004-08-17 | 2008-09-09 | Encision, Inc. | System and method for performing an electrosurgical procedure |
US7465302B2 (en) * | 2004-08-17 | 2008-12-16 | Encision, Inc. | System and method for performing an electrosurgical procedure |
US8241242B2 (en) * | 2005-03-30 | 2012-08-14 | Abbott Medical Optics Inc. | Phacoaspiration flow restrictor with bypass tube |
AU2006235506B2 (en) * | 2005-04-11 | 2011-06-30 | Terumo Kabushiki Kaisha | Methods and apparatus to achieve a closure of a layered tissue defect |
US7500974B2 (en) | 2005-06-28 | 2009-03-10 | Covidien Ag | Electrode with rotatably deployable sheath |
US7828794B2 (en) | 2005-08-25 | 2010-11-09 | Covidien Ag | Handheld electrosurgical apparatus for controlling operating room equipment |
US8414576B2 (en) * | 2005-12-02 | 2013-04-09 | Ioan Cosmescu | Swivel device for electrosurgery pencil and surgical smoke evacuation |
US20070129722A1 (en) * | 2005-12-02 | 2007-06-07 | Ioan Cosmescu | Swivel device for improved surgical smoke evacuation |
US8007494B1 (en) | 2006-04-27 | 2011-08-30 | Encision, Inc. | Device and method to prevent surgical burns |
US20070260240A1 (en) | 2006-05-05 | 2007-11-08 | Sherwood Services Ag | Soft tissue RF transection and resection device |
US9770230B2 (en) | 2006-06-01 | 2017-09-26 | Maquet Cardiovascular Llc | Endoscopic vessel harvesting system components |
US8251989B1 (en) | 2006-06-13 | 2012-08-28 | Encision, Inc. | Combined bipolar and monopolar electrosurgical instrument and method |
JP4471125B2 (en) * | 2006-06-23 | 2010-06-02 | 富士フイルム株式会社 | High frequency treatment tool |
US20080140069A1 (en) * | 2006-12-07 | 2008-06-12 | Cierra, Inc. | Multi-electrode apparatus for tissue welding and ablation |
US8506565B2 (en) | 2007-08-23 | 2013-08-13 | Covidien Lp | Electrosurgical device with LED adapter |
US8460284B2 (en) | 2007-10-26 | 2013-06-11 | Encision, Inc. | Multiple parameter fault detection in electrosurgical instrument shields |
US8235987B2 (en) | 2007-12-05 | 2012-08-07 | Tyco Healthcare Group Lp | Thermal penetration and arc length controllable electrosurgical pencil |
WO2009086448A1 (en) | 2007-12-28 | 2009-07-09 | Salient Surgical Technologies, Inc. | Fluid-assisted electrosurgical devices, methods and systems |
US8597292B2 (en) | 2008-03-31 | 2013-12-03 | Covidien Lp | Electrosurgical pencil including improved controls |
US8632536B2 (en) | 2008-03-31 | 2014-01-21 | Covidien Lp | Electrosurgical pencil including improved controls |
US8636733B2 (en) * | 2008-03-31 | 2014-01-28 | Covidien Lp | Electrosurgical pencil including improved controls |
US8162937B2 (en) * | 2008-06-27 | 2012-04-24 | Tyco Healthcare Group Lp | High volume fluid seal for electrosurgical handpiece |
US9833281B2 (en) | 2008-08-18 | 2017-12-05 | Encision Inc. | Enhanced control systems including flexible shielding and support systems for electrosurgical applications |
US8500728B2 (en) | 2008-08-18 | 2013-08-06 | Encision, Inc. | Enhanced control systems including flexible shielding and support systems for electrosurgical applications |
US9254168B2 (en) | 2009-02-02 | 2016-02-09 | Medtronic Advanced Energy Llc | Electro-thermotherapy of tissue using penetrating microelectrode array |
US8231620B2 (en) | 2009-02-10 | 2012-07-31 | Tyco Healthcare Group Lp | Extension cutting blade |
JP5592409B2 (en) | 2009-02-23 | 2014-09-17 | サリエント・サージカル・テクノロジーズ・インコーポレーテッド | Fluid-assisted electrosurgical device and method of use thereof |
US8348929B2 (en) | 2009-08-05 | 2013-01-08 | Rocin Laboratories, Inc. | Endoscopically-guided tissue aspiration system for safely removing fat tissue from a patient |
US8465471B2 (en) | 2009-08-05 | 2013-06-18 | Rocin Laboratories, Inc. | Endoscopically-guided electro-cauterizing power-assisted fat aspiration system for aspirating visceral fat tissue within the abdomen of a patient |
WO2011031748A1 (en) | 2009-09-08 | 2011-03-17 | Salient Surgical Technologies, Inc. | Cartridge assembly for electrosurgical devices, electrosurgical unit and methods of use thereof |
EP2506915A4 (en) | 2009-11-30 | 2013-05-29 | Jeffrey A Klein | Tumescent antibiotic solution |
EP2544616B1 (en) | 2010-03-11 | 2017-09-06 | Medtronic Advanced Energy LLC | Bipolar electrosurgical cutter with position insensitive return electrode contact |
GB2480498A (en) | 2010-05-21 | 2011-11-23 | Ethicon Endo Surgery Inc | Medical device comprising RF circuitry |
US9474438B2 (en) * | 2010-05-28 | 2016-10-25 | Gyrus Acmi, Inc. | Continuous flow endoscope systems |
US20110295249A1 (en) | 2010-05-28 | 2011-12-01 | Salient Surgical Technologies, Inc. | Fluid-Assisted Electrosurgical Devices, and Methods of Manufacture Thereof |
US9138289B2 (en) | 2010-06-28 | 2015-09-22 | Medtronic Advanced Energy Llc | Electrode sheath for electrosurgical device |
US8920417B2 (en) | 2010-06-30 | 2014-12-30 | Medtronic Advanced Energy Llc | Electrosurgical devices and methods of use thereof |
US8906012B2 (en) | 2010-06-30 | 2014-12-09 | Medtronic Advanced Energy Llc | Electrosurgical devices with wire electrode |
US9023040B2 (en) | 2010-10-26 | 2015-05-05 | Medtronic Advanced Energy Llc | Electrosurgical cutting devices |
US8518018B2 (en) | 2011-02-04 | 2013-08-27 | Noah Mark Minskoff | Apparatus and method for electrosurgical suction |
US8932286B2 (en) | 2011-02-04 | 2015-01-13 | Nathan Andrew Terry | Apparatus and method for electrosurgical suction |
US8932292B2 (en) | 2011-02-04 | 2015-01-13 | Integrated Surgical LLC | Apparatus and method for electrosurgical suction |
US8845616B2 (en) | 2011-02-04 | 2014-09-30 | Integrated Surgical LLC | Apparatus and method for electrosurgical suction |
US9427281B2 (en) | 2011-03-11 | 2016-08-30 | Medtronic Advanced Energy Llc | Bronchoscope-compatible catheter provided with electrosurgical device |
US9750565B2 (en) | 2011-09-30 | 2017-09-05 | Medtronic Advanced Energy Llc | Electrosurgical balloons |
JP6234932B2 (en) | 2011-10-24 | 2017-11-22 | エシコン・エンド−サージェリィ・インコーポレイテッドEthicon Endo−Surgery,Inc. | Medical instruments |
US8870864B2 (en) | 2011-10-28 | 2014-10-28 | Medtronic Advanced Energy Llc | Single instrument electrosurgery apparatus and its method of use |
US9586040B2 (en) * | 2012-05-18 | 2017-03-07 | Lawrence Livermore National Security, Llc | Vacuum-actuated percutaneous insertion/implantation tool for flexible neural probes and interfaces |
US9375252B2 (en) | 2012-08-02 | 2016-06-28 | Covidien Lp | Adjustable length and/or exposure electrodes |
WO2014032157A1 (en) | 2012-08-28 | 2014-03-06 | Leonard Ineson | Adjustable electrosurgical pencil |
US9375253B2 (en) * | 2013-03-14 | 2016-06-28 | Megadyne Medical Products, Inc. | Electrosurgical instrument |
CA2827695C (en) | 2013-09-20 | 2021-02-16 | Leonard Ineson | Adjustable electrosurgical pencil |
US10631914B2 (en) | 2013-09-30 | 2020-04-28 | Covidien Lp | Bipolar electrosurgical instrument with movable electrode and related systems and methods |
US20150105614A1 (en) * | 2013-10-15 | 2015-04-16 | Olympus Medical Systems Corp. | Method for endoscopic treatment |
US10716587B2 (en) | 2014-06-13 | 2020-07-21 | Surgis Medical Llc | Surgical device with light |
US9974599B2 (en) | 2014-08-15 | 2018-05-22 | Medtronic Ps Medical, Inc. | Multipurpose electrosurgical device |
WO2016065336A1 (en) | 2014-10-24 | 2016-04-28 | Integrated Surgical LLC | Suction device for surgical instruments |
US9956029B2 (en) | 2014-10-31 | 2018-05-01 | Medtronic Advanced Energy Llc | Telescoping device with saline irrigation line |
US10159524B2 (en) | 2014-12-22 | 2018-12-25 | Ethicon Llc | High power battery powered RF amplifier topology |
US11389227B2 (en) | 2015-08-20 | 2022-07-19 | Medtronic Advanced Energy Llc | Electrosurgical device with multivariate control |
US11051875B2 (en) | 2015-08-24 | 2021-07-06 | Medtronic Advanced Energy Llc | Multipurpose electrosurgical device |
US10413314B2 (en) * | 2015-08-26 | 2019-09-17 | Ethicon Llc | Ultrasonic surgical instrument with activation member pair and slidable cover |
US10959771B2 (en) | 2015-10-16 | 2021-03-30 | Ethicon Llc | Suction and irrigation sealing grasper |
US10716612B2 (en) | 2015-12-18 | 2020-07-21 | Medtronic Advanced Energy Llc | Electrosurgical device with multiple monopolar electrode assembly |
US10959806B2 (en) | 2015-12-30 | 2021-03-30 | Ethicon Llc | Energized medical device with reusable handle |
US10856934B2 (en) | 2016-04-29 | 2020-12-08 | Ethicon Llc | Electrosurgical instrument with electrically conductive gap setting and tissue engaging members |
US10987156B2 (en) | 2016-04-29 | 2021-04-27 | Ethicon Llc | Electrosurgical instrument with electrically conductive gap setting member and electrically insulative tissue engaging members |
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US10390903B2 (en) * | 2016-10-24 | 2019-08-27 | Steven Warnock | Illuminated apparatus with telescoping for electrocautery devices and method of use |
US11033325B2 (en) * | 2017-02-16 | 2021-06-15 | Cilag Gmbh International | Electrosurgical instrument with telescoping suction port and debris cleaner |
US10792095B2 (en) * | 2017-03-05 | 2020-10-06 | I.C. Medical, Inc. | Monopolar electrosurgery pencil with argon beam capability |
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US11224480B2 (en) * | 2018-08-24 | 2022-01-18 | Boston Scientific Scimed, Inc. | Medical devices and related methods |
US11547463B2 (en) | 2018-09-21 | 2023-01-10 | Covidien Lp | Smoke evacuation electrosurgical pencil with adjustable electrode and vent tube |
US11596466B2 (en) | 2019-09-09 | 2023-03-07 | Covidien Lp | Surgical instrument with evacuation port and method |
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US11957342B2 (en) | 2021-11-01 | 2024-04-16 | Cilag Gmbh International | Devices, systems, and methods for detecting tissue and foreign objects during a surgical operation |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1311494A (en) * | 1919-07-29 | Electrically-operating surgical-needle device | ||
US1963636A (en) * | 1934-06-19 | Endqscopic instrument and elec | ||
US1978495A (en) * | 1927-10-08 | 1934-10-30 | Firm Elek Citatsgesellschaft S | Medical instrument |
US1750874A (en) * | 1928-12-12 | 1930-03-18 | Arthur C Campbell | Tonsillotome |
US2002594A (en) * | 1933-03-24 | 1935-05-28 | Wappler Frederick Charles | Instrument for electro-surgical treatment of tissue |
US2894512A (en) * | 1957-10-07 | 1959-07-14 | Tapper Robert | Epilation device |
US3266492A (en) * | 1963-09-06 | 1966-08-16 | Samuel B Steinberg | Cryosurgery probe device |
US3682162A (en) * | 1968-12-13 | 1972-08-08 | Wellcome Found | Combined electrode and hypodermic syringe needle |
US3662151A (en) * | 1969-11-17 | 1972-05-09 | Codman & Shurtleff | Cautery |
US3884237A (en) * | 1972-06-19 | 1975-05-20 | Malley Conor C O | Apparatus for intraocular surgery |
US3850175A (en) * | 1972-07-03 | 1974-11-26 | J Lglesias | Resectoscope with continuous irrigation |
US3835842A (en) * | 1972-07-03 | 1974-09-17 | J Iglesias | Endoscope with continuous irrigation |
US3974833A (en) * | 1973-03-19 | 1976-08-17 | Durden Iii John G | Disposable electrosurgical cautery having optional suction control feature |
US3828780A (en) * | 1973-03-26 | 1974-08-13 | Valleylab Inc | Combined electrocoagulator-suction instrument |
DE2324415C2 (en) * | 1973-05-15 | 1975-06-05 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Surgical suction device |
FR2235669A1 (en) * | 1973-07-07 | 1975-01-31 | Lunacek Boris | Gynaecological sterilisation instrument - has hollow electrode protruding from the end of a curved ended tube |
DE2513868C2 (en) * | 1974-04-01 | 1982-11-04 | Olympus Optical Co., Ltd., Tokyo | Bipolar electrodiathermy forceps |
US3906955A (en) * | 1974-05-06 | 1975-09-23 | Richard R Roberts | Surgical cauterizing tool having suction means |
US3987795A (en) * | 1974-08-28 | 1976-10-26 | Valleylab, Inc. | Electrosurgical devices having sesquipolar electrode structures incorporated therein |
US4074718A (en) * | 1976-03-17 | 1978-02-21 | Valleylab, Inc. | Electrosurgical instrument |
US4112950A (en) * | 1976-10-22 | 1978-09-12 | Aspen Laboratories | Medical electronic apparatus and components |
US4295467A (en) * | 1979-05-24 | 1981-10-20 | Inverness International Corp. | Electrolysis apparatus with retractable probe |
US4311145A (en) * | 1979-07-16 | 1982-01-19 | Neomed, Inc. | Disposable electrosurgical instrument |
US4307720A (en) * | 1979-07-26 | 1981-12-29 | Weber Jr Jaroy | Electrocautery apparatus and method and means for cleaning the same |
US4562838A (en) * | 1981-01-23 | 1986-01-07 | Walker William S | Electrosurgery instrument |
AU5585086A (en) * | 1985-03-14 | 1986-10-13 | Baxter Travenol Laboratories Inc. | Electrosurgical device |
US4696669A (en) * | 1986-03-24 | 1987-09-29 | Menhusen Monty J | Hand held combination flush with adjustable nozzle and/or suction apparatus |
US4719914A (en) * | 1986-12-24 | 1988-01-19 | Johnson Gerald W | Electrosurgical instrument |
-
1987
- 1987-11-30 US US07/125,652 patent/US4919129A/en not_active Expired - Fee Related
-
1988
- 1988-11-29 CA CA000584437A patent/CA1296962C/en not_active Expired - Lifetime
- 1988-11-30 JP JP63303848A patent/JPH01195850A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US4919129A (en) | 1990-04-24 |
JPH01195850A (en) | 1989-08-07 |
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