CA1265846A - Electrode for fiber optic scopes - Google Patents
Electrode for fiber optic scopesInfo
- Publication number
- CA1265846A CA1265846A CA000490972A CA490972A CA1265846A CA 1265846 A CA1265846 A CA 1265846A CA 000490972 A CA000490972 A CA 000490972A CA 490972 A CA490972 A CA 490972A CA 1265846 A CA1265846 A CA 1265846A
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- irrigant
- conduit
- connector
- fluid
- 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
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000009975 flexible effect Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 description 4
- 238000009954 braiding Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920006355 Tefzel Polymers 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000626 ureter Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
- G10K15/06—Sound-producing devices using electric discharge
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B17/22022—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement using electric discharge
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22051—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
-
- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Endoscopes (AREA)
- Surgical Instruments (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An electrode for use in fiber optic scopes has a connecting end and a discharge end and includes an elongated flexible center conductor and an inner insulation sleeve ex-tending along and covering the conductor. An outer insulation sleeve extends along and covers the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit between the inner and outer insulation sleeves. A metallic sleeve extends along the irrigant conduit, the metallic sleeve being of a woven braided material whereby to permit passage of the irrigant through the irrigant conduit. Irrigant input means are in communication with the irrigant conduit. Ad-jacent the discharge end of the electrode is a balloon for centering the electrode in a duct.
An electrode for use in fiber optic scopes has a connecting end and a discharge end and includes an elongated flexible center conductor and an inner insulation sleeve ex-tending along and covering the conductor. An outer insulation sleeve extends along and covers the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit between the inner and outer insulation sleeves. A metallic sleeve extends along the irrigant conduit, the metallic sleeve being of a woven braided material whereby to permit passage of the irrigant through the irrigant conduit. Irrigant input means are in communication with the irrigant conduit. Ad-jacent the discharge end of the electrode is a balloon for centering the electrode in a duct.
Description
~s~
The invention relates to an electrode Eor use in fiber optic scopes. More speci~ically, the invention relates to such an electrode which includes an irrigant conduit integral therewith. The invention also relates to such an electrode which further includes a means for centering the electrode in a duct.
Fiber optic scopes, such as nephroscopes, uretero-scopes, cystoscopes and endoscopes are used basically to provide access to cavities and ducts in the human body there-1() by reducing the need for surgical procedures. The electrodes~e passed through the fiber optic scopes to create hydraulic shock waves which fragment the calculi.
Endourological procedures are used to remove such calculi fl-om the kidney and ureter. In such procedures using fibe~ optic scopes, it is necessary to supply irrigant in the axea of the calculi and the discharge end of the electrode both for the purpose of providing an electrical path between the hot and cold points of the electrode, and to carry the hydraulic shock waves. Under present procedurss, irrigant is ~a irst supplied in the area through the operative channel o~
the scope, and the electrode is then inserted. If further irriyant is required, it is necessary to remove the electrode to provide irrigant through the operative channel. The elec-trode is once again inserted.
As will be appreciated, these steps increase the total time for the calculi eliminated procedure. In addition, the removal and reinsertion of instruments and electrodes is undesirable and should be kept to a minimum.
Fiber optic scopes are also used to eliminate calculi from ducts in the human body, e.g., the common duct. In pro-cedures of this nature, for example, endoscopy, it is desirable to be able to center the electrode in the duct adjacent to the calculi. Presen-tly available electrodes do not have any facilities for effecting this desirable end.
It is therefore an object of -the invention to pro-vide an electrode for fiber optic scopes which overcomes the deIiciencies of the prior art.
It is a more specific object of the invention to provide such an electrode which includes an irrigant conduit integral therewith.
It is a further object of the invention to provide an electrode which includes means for centering the electrode in a duct.
In accordance with the invention there is provided an electrode for use in fiber optic scopes having a connect-ing end and a discharge end and including an elongated flex-ible center conductor and an inner insulation sleeve extending along and covering the conductor. An outer insulation sleeve extends along and covers the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit between the ~0 inner and outer insulation sleeves. A metallic sleeve extends along the irrigant conduit, the metallic sleeve being of a woven braided material whereby to permit passage of the irrigant through the irrigant conduit. Irrigant input means are in communication with the irrigant conduit.
The invention will be better understood by an exam-ination of the following description, together with the accompanying drawings, in which:
FIGURE 1 is a cross-section of an electrode in accordance with the invention, FIGURE 2 is a cross-section through II-II of Figure 1, FIGURE 3 is a cross-section through III-III of Figure 1~ and FIGURE 4 illustrates a unitary connector embodiment of the invention.
Referring now to the drawings, an electrode in accordance with the invention comprises an elongated flexible center conductor 1 which may be a copper wire. ~e copper wire is covered by an inner insulation sleeve 3 which extends ~lon~ and fully covers the conductor. ~he outer diameter of the insulator and the wire could be of the order of 0.019 inch and the thickness of the inner insulator, which may be made of the material tefzel, could be of the order of 4.5 mil.
~ uter insulation sleeve 5 covers and e~tends along the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit. In the gap between the insulation sleeves is a metallic sleeve 7 which comprises a woven metallic braiding. Inasmuch as the braiding is woven, and therefore includes spaces, the braiding is porous and therefore permits passage of irrigant through the space between the inner and ~0 outer insulators.
Extending along-and covering the outer insulation sleeve 5 is a loosely fitting outer sheath 9. The gap 11 between the outer sheath 9 and the outer insulation sleeve 5 comprises a fluid conduit.
Irrigant inlet 13 comprises an inlet to provide irrigant to the irrigant conduitr It includes a means 15 which is in fluid contact with the irrigant conduit, and a connector 17 which is connected to a source of irrigant.
Fluid inlet 19 is in fluid communication with the fluid conduit. It includes a means 21 for effecting the fluid communication, and a connector 23 which can be con-nected to a source of fluid such as air. A stop cock 2~ is provided at -the end of the connectox 23.
For electrical connection, an electrical coax connector 25 is provided at the connector end 26 of the elec--trode. The coax connector, as is well known in the art, includes a center pin 27 and a ground connector 29. The ground connector is, of course, an extension of the woven metallic ~raiding 7.
A centering means is provided at the discharge end ~0 of the electrode. The centering means comprises a balloon 31, which may be of a latex material, having one end thereof attached to the outer sheath 9 and having the other end there-of attached to the outer insulation sleeve 5. The metallic braid 7 is positioned over the helical coil 33 at the discharge end 30 of the electrode, and the helix is then covered with the outer insulation sleeve 5. The helix 33 is provided both to provide memory at the discharge end of the electrode (i.e., springback) and to increase the durability thereof.
In operation, the electrode is first inserted into the human body adjacent to the calculi which is to be elimin-~0 ated. Irrigant can then be supplied by connecting connector17 to a source of irrigant and turning the source on. The irrigant will exit from the electrode at the discharge end thereof.
When the electrode is used to eliminate calculi in a duct, and it is desired to center the electrode in the duct, the connector 23 is connected to a source of fluid, for ex-ample, an air pump, and the source is turned on. This will cause the balloon to expand. The balloon will expand in such a manner that its longitudinal axis will remain coincident with the longitudinal axis of the electrode, i.e., it will evenly expand outwardly. Thus, when the balloon contacts S8~
the inner wall of a duct, the electrode will be centered in that duct. The stop cock is closed to prevent the air ~rom escaping from the balloon a~ter it has been inflated.
sefore removal of the ele^trode, the stop cock will be opened so that the air will be permitted to escape and the balloon will then be deflated. ~le air can be withdrawn from the balloon either by permitting it to escape naturally, or by applying a source of negative pressure to the connector 23.
In accordance with a further embodiment of the invention, there is provided a unitary connector for both the irrigant and the fluid inlets as illustrated in Figure 4.
As can be seen in Figure 4, the unitary connector comprises a solid block 35. A fluid inlet 37 is connected to a fluid channel 39 which is in fluid communication with the fluid conduit 11. In a like manner, an irrigant connector 41 com-prises an irrigant channel 43 which is in fluid contact with the irrigant conduit 7. In accordance with a further embodi-ment of the invention, the unitary connector will also include an electrical connector 45.
Although several embodiments have been illustrated, this was for the purpose of describing, but not limiting, the invention. Various modifications, which will come readily to the mind of one skilled in the art, are within the scope of the invention as defined in the appended claims.
The invention relates to an electrode Eor use in fiber optic scopes. More speci~ically, the invention relates to such an electrode which includes an irrigant conduit integral therewith. The invention also relates to such an electrode which further includes a means for centering the electrode in a duct.
Fiber optic scopes, such as nephroscopes, uretero-scopes, cystoscopes and endoscopes are used basically to provide access to cavities and ducts in the human body there-1() by reducing the need for surgical procedures. The electrodes~e passed through the fiber optic scopes to create hydraulic shock waves which fragment the calculi.
Endourological procedures are used to remove such calculi fl-om the kidney and ureter. In such procedures using fibe~ optic scopes, it is necessary to supply irrigant in the axea of the calculi and the discharge end of the electrode both for the purpose of providing an electrical path between the hot and cold points of the electrode, and to carry the hydraulic shock waves. Under present procedurss, irrigant is ~a irst supplied in the area through the operative channel o~
the scope, and the electrode is then inserted. If further irriyant is required, it is necessary to remove the electrode to provide irrigant through the operative channel. The elec-trode is once again inserted.
As will be appreciated, these steps increase the total time for the calculi eliminated procedure. In addition, the removal and reinsertion of instruments and electrodes is undesirable and should be kept to a minimum.
Fiber optic scopes are also used to eliminate calculi from ducts in the human body, e.g., the common duct. In pro-cedures of this nature, for example, endoscopy, it is desirable to be able to center the electrode in the duct adjacent to the calculi. Presen-tly available electrodes do not have any facilities for effecting this desirable end.
It is therefore an object of -the invention to pro-vide an electrode for fiber optic scopes which overcomes the deIiciencies of the prior art.
It is a more specific object of the invention to provide such an electrode which includes an irrigant conduit integral therewith.
It is a further object of the invention to provide an electrode which includes means for centering the electrode in a duct.
In accordance with the invention there is provided an electrode for use in fiber optic scopes having a connect-ing end and a discharge end and including an elongated flex-ible center conductor and an inner insulation sleeve extending along and covering the conductor. An outer insulation sleeve extends along and covers the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit between the ~0 inner and outer insulation sleeves. A metallic sleeve extends along the irrigant conduit, the metallic sleeve being of a woven braided material whereby to permit passage of the irrigant through the irrigant conduit. Irrigant input means are in communication with the irrigant conduit.
The invention will be better understood by an exam-ination of the following description, together with the accompanying drawings, in which:
FIGURE 1 is a cross-section of an electrode in accordance with the invention, FIGURE 2 is a cross-section through II-II of Figure 1, FIGURE 3 is a cross-section through III-III of Figure 1~ and FIGURE 4 illustrates a unitary connector embodiment of the invention.
Referring now to the drawings, an electrode in accordance with the invention comprises an elongated flexible center conductor 1 which may be a copper wire. ~e copper wire is covered by an inner insulation sleeve 3 which extends ~lon~ and fully covers the conductor. ~he outer diameter of the insulator and the wire could be of the order of 0.019 inch and the thickness of the inner insulator, which may be made of the material tefzel, could be of the order of 4.5 mil.
~ uter insulation sleeve 5 covers and e~tends along the inner insulation sleeve and leaves a gap therebetween to define an irrigant conduit. In the gap between the insulation sleeves is a metallic sleeve 7 which comprises a woven metallic braiding. Inasmuch as the braiding is woven, and therefore includes spaces, the braiding is porous and therefore permits passage of irrigant through the space between the inner and ~0 outer insulators.
Extending along-and covering the outer insulation sleeve 5 is a loosely fitting outer sheath 9. The gap 11 between the outer sheath 9 and the outer insulation sleeve 5 comprises a fluid conduit.
Irrigant inlet 13 comprises an inlet to provide irrigant to the irrigant conduitr It includes a means 15 which is in fluid contact with the irrigant conduit, and a connector 17 which is connected to a source of irrigant.
Fluid inlet 19 is in fluid communication with the fluid conduit. It includes a means 21 for effecting the fluid communication, and a connector 23 which can be con-nected to a source of fluid such as air. A stop cock 2~ is provided at -the end of the connectox 23.
For electrical connection, an electrical coax connector 25 is provided at the connector end 26 of the elec--trode. The coax connector, as is well known in the art, includes a center pin 27 and a ground connector 29. The ground connector is, of course, an extension of the woven metallic ~raiding 7.
A centering means is provided at the discharge end ~0 of the electrode. The centering means comprises a balloon 31, which may be of a latex material, having one end thereof attached to the outer sheath 9 and having the other end there-of attached to the outer insulation sleeve 5. The metallic braid 7 is positioned over the helical coil 33 at the discharge end 30 of the electrode, and the helix is then covered with the outer insulation sleeve 5. The helix 33 is provided both to provide memory at the discharge end of the electrode (i.e., springback) and to increase the durability thereof.
In operation, the electrode is first inserted into the human body adjacent to the calculi which is to be elimin-~0 ated. Irrigant can then be supplied by connecting connector17 to a source of irrigant and turning the source on. The irrigant will exit from the electrode at the discharge end thereof.
When the electrode is used to eliminate calculi in a duct, and it is desired to center the electrode in the duct, the connector 23 is connected to a source of fluid, for ex-ample, an air pump, and the source is turned on. This will cause the balloon to expand. The balloon will expand in such a manner that its longitudinal axis will remain coincident with the longitudinal axis of the electrode, i.e., it will evenly expand outwardly. Thus, when the balloon contacts S8~
the inner wall of a duct, the electrode will be centered in that duct. The stop cock is closed to prevent the air ~rom escaping from the balloon a~ter it has been inflated.
sefore removal of the ele^trode, the stop cock will be opened so that the air will be permitted to escape and the balloon will then be deflated. ~le air can be withdrawn from the balloon either by permitting it to escape naturally, or by applying a source of negative pressure to the connector 23.
In accordance with a further embodiment of the invention, there is provided a unitary connector for both the irrigant and the fluid inlets as illustrated in Figure 4.
As can be seen in Figure 4, the unitary connector comprises a solid block 35. A fluid inlet 37 is connected to a fluid channel 39 which is in fluid communication with the fluid conduit 11. In a like manner, an irrigant connector 41 com-prises an irrigant channel 43 which is in fluid contact with the irrigant conduit 7. In accordance with a further embodi-ment of the invention, the unitary connector will also include an electrical connector 45.
Although several embodiments have been illustrated, this was for the purpose of describing, but not limiting, the invention. Various modifications, which will come readily to the mind of one skilled in the art, are within the scope of the invention as defined in the appended claims.
Claims (12)
1. An electrode for use in fiber optic scopes, said electrode having a connecting end and a discharge end, and comprising:
an elongated, flexible, center conductor, an inner insulation sleeve extending along and covering said conductor, an outer insulation sleeve extending along and covering said inner insulation sleeve, and leaving a gap therebetween, to define an irrigant conduit between said inner and outer insulation sleeves;
a metallic sleeve extending along said irrigant conduit, said metallic sleeve being of a woven braided mat-erial, whereby to permit passage of said irrigant through said irrigant conduit; and irrigant input means in communication with said irrigant conduit.
an elongated, flexible, center conductor, an inner insulation sleeve extending along and covering said conductor, an outer insulation sleeve extending along and covering said inner insulation sleeve, and leaving a gap therebetween, to define an irrigant conduit between said inner and outer insulation sleeves;
a metallic sleeve extending along said irrigant conduit, said metallic sleeve being of a woven braided mat-erial, whereby to permit passage of said irrigant through said irrigant conduit; and irrigant input means in communication with said irrigant conduit.
2. An electrode as defined in claim 1 and including means adjacent the discharge end thereof for centering said electrode in a duct.
3. An electrode as defined in claim 2 and further in-cluding a loosely fitting outer sheath extending along and covering said outer insulation sleeve and defining a fluid conduit between said outer insulation sleeve and said outer sheath;
balloon means adjacent the discharge end of said electrode, said balloon means comprising said means for center-ing,
balloon means adjacent the discharge end of said electrode, said balloon means comprising said means for center-ing,
4. An electrode as defined in claim 3 wherein said balloon means is secured, at one end thereof, to said outer sheath, and, at the other end thereof, to said outer insula-tion sleeve.
5. An electrode as defined in claim 4 and further comprising fluid input means in fluid communication with said fluid conduit.
6. An electrode as defined in claim 1 and further in-cluding a metallic helix, said metallic sleeve extending along and covering said metallic helix, at said discharge end of said electrode.
7. An electrode as defined in claim 5 and further in-cluding a metallic helix, said metallic sleeve extending along and covering said metallic helix, at said discharge end of said electrode.
8. An electrode as defined in claim 1 wherein said irrigant input means comprises means in fluid communication with said irrigant conduit and connector means for connecting said input means to a source of irrigant.
9. An electrode as defined in claim 5 wherein said irrigant input means comprises means in fluid communication with said irrigant conduit and connector means for connecting said input means to a source of irrigant; and wherein said fluid input means comprises means in fluid communication with said fluid conduit and a connector for connecting said fluid input to a source of fluid.
10. An electrode as defined in claim 9 wherein said irrigant input means and said fluid input means comprise a single unitary connector.
11. An electrode as defined in claim 1 and including a coaxial electrical connector at the connecting end thereof, said coaxial connector including a center pin and a ground connector, said center conductor being connected to said center pin and said metallic sleeve being connected to said ground connector.
12. An electrode as defined in claim 11 wherein said irrigant input means, said fluid input means, and said co-axial connector comprise a single unitary connector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US772,039 | 1985-09-03 | ||
| US06/772,039 US4606331A (en) | 1985-09-03 | 1985-09-03 | Electrode for fiber optic scopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1265846A true CA1265846A (en) | 1990-02-13 |
Family
ID=25093712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000490972A Expired CA1265846A (en) | 1985-09-03 | 1985-09-18 | Electrode for fiber optic scopes |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4606331A (en) |
| EP (1) | EP0221271A3 (en) |
| JP (1) | JPS62117544A (en) |
| CA (1) | CA1265846A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8619055U1 (en) * | 1986-07-16 | 1986-11-20 | Richard Wolf Gmbh, 7134 Knittlingen, De | |
| DE3817915C2 (en) * | 1988-05-26 | 1997-08-28 | Storz Karl Gmbh & Co | Flexible endoscope |
| DE8814573U1 (en) * | 1988-11-18 | 1990-01-11 | Effner Gmbh, 1000 Berlin, De | |
| DE4026451C1 (en) * | 1990-08-21 | 1991-11-14 | Schott Glaswerke, 6500 Mainz, De | |
| US5152768A (en) * | 1991-02-26 | 1992-10-06 | Bhatta Krishna M | Electrohydraulic lithotripsy |
| US6328734B1 (en) * | 1998-10-02 | 2001-12-11 | Stephen M. Zappala | Flexible endoscope with bipolar return electrode and working channel |
| WO2011141800A1 (en) | 2010-05-10 | 2011-11-17 | Endosense S.A. | Irrigated finned ablation head |
| CN107469177A (en) * | 2017-09-19 | 2017-12-15 | 刘海霞 | A kind of novel gynecological Multifunctional washing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2275167A (en) * | 1939-04-26 | 1942-03-03 | Bierman William | Electrosurgical instrument |
| GB607292A (en) * | 1945-06-21 | 1948-08-27 | Hilger & Watts Ltd | Improvements in or relating to instruments for obtaining access to and viewing cavities, particularly cavities of the human body |
| US2828747A (en) * | 1952-12-06 | 1958-04-01 | Birtcher Corp | Gas-blanketed electro-surgical device |
| US3100482A (en) * | 1961-04-14 | 1963-08-13 | American Cystoscope Makers Inc | Flexible optical surgical instrument |
| US3294085A (en) * | 1963-09-27 | 1966-12-27 | American Cystoscope Makers Inc | Endoscope |
| FR1466248A (en) * | 1965-02-22 | 1967-01-20 | Intracavitary treatment instrument | |
| US3540434A (en) * | 1968-12-05 | 1970-11-17 | Us Navy | Coaxial electrode recording system |
| US3670721A (en) * | 1970-02-05 | 1972-06-20 | Olympus Optical Co | Endoscope |
| US3884237A (en) * | 1972-06-19 | 1975-05-20 | Malley Conor C O | Apparatus for intraocular surgery |
| DK131542C (en) * | 1974-02-06 | 1976-02-09 | Akad Tekn Videnskaber | SURGICAL INSTRUMENT FOR SAMPLING BIOLOGICAL SAMPLES |
| US4176662A (en) * | 1977-06-17 | 1979-12-04 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Apparatus for endoscopic examination |
| JPS5568350A (en) * | 1978-11-20 | 1980-05-23 | Olympus Optical Co | Connector for endoscope |
| WO1980002231A1 (en) * | 1979-04-24 | 1980-10-30 | J Donachy | Long-life flexible electrode lead |
| JPS59100517A (en) * | 1982-12-01 | 1984-06-09 | Toshiba Corp | Wafer diffusion device |
| US4619247A (en) * | 1983-03-31 | 1986-10-28 | Sumitomo Electric Industries, Ltd. | Catheter |
| US4646737A (en) * | 1983-06-13 | 1987-03-03 | Laserscope, Inc. | Localized heat applying medical device |
| GB8321085D0 (en) * | 1983-08-04 | 1983-09-07 | Matburn Holdings Ltd | Catheters |
-
1985
- 1985-09-03 US US06/772,039 patent/US4606331A/en not_active Expired - Fee Related
- 1985-09-18 CA CA000490972A patent/CA1265846A/en not_active Expired
-
1986
- 1986-08-26 EP EP86111797A patent/EP0221271A3/en not_active Ceased
- 1986-09-03 JP JP61207655A patent/JPS62117544A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0221271A3 (en) | 1988-06-29 |
| US4606331A (en) | 1986-08-19 |
| JPS62117544A (en) | 1987-05-29 |
| EP0221271A2 (en) | 1987-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |