CA2120857A1 - Seal members for surgical trocars - Google Patents

Seal members for surgical trocars

Info

Publication number
CA2120857A1
CA2120857A1 CA002120857A CA2120857A CA2120857A1 CA 2120857 A1 CA2120857 A1 CA 2120857A1 CA 002120857 A CA002120857 A CA 002120857A CA 2120857 A CA2120857 A CA 2120857A CA 2120857 A1 CA2120857 A1 CA 2120857A1
Authority
CA
Canada
Prior art keywords
seal member
trocar assembly
trocar
section
opening
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.)
Abandoned
Application number
CA002120857A
Other languages
French (fr)
Inventor
Randy R. Stephens
Michael S. Banik
Leslie R. Ashmore
C. Daniel Rowe
George E. Selecman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ethicon Endo Surgery LLC
Original Assignee
Ethicon Endo Surgery LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ethicon Endo Surgery LLC filed Critical Ethicon Endo Surgery LLC
Publication of CA2120857A1 publication Critical patent/CA2120857A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3462Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3462Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A61B2017/3464Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0626Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A61M2039/0653Perforated disc
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A61M2039/0666Flap-valve
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02Access sites
    • A61M39/06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0686Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof comprising more than one seal

Abstract

ABSTRACT
Trocar assembly device are disclosed that include an improved elastomeric seal member to maintain sealing engagement during off-centering or radial motion of instruments extending therethrough. The seal members include an inner section and an outer section. The inner section has an opening formed therein to permit an elongate instrument to pass therethrough in sealing engagement therewith. In accordance with certain embodiments, a corrugated portion is formed in the outer section. In accordance with certain embodiments an annular floating ring separates the inner section from the outer section.

Description

Express ~la _ Label No. GB594198979US

A
~ 2120857 :~-,, :~. -.
; IMPROV~D 8~AL ~E~R8 FOR 8~R~IC~L TROCAR8 .
This application is a continuation-in-part of co-pending U S Patent Application Serial No 07/779,040, riled on October 18, 1991, which application '` i8 assigned to the same assignee as this application .
- Fleld or T~ rn~-ntlo~
This invention generally relatos to surgical instruments; and moro particularly, the in~ention relates to surgical trocar assembly devices for providing communication into an anatomical cavity The -trocar assembly devices in accordance with the present invention include an improved seal member that is able to maintain sealing engagement during of~-centering or radial motion of elongate surgical instru~ents extending therethrough 1 ::
~ac~roun~ Of ~he In~ention A trocar ass~ly is a surgiQl instrument that is used to gain access to a body cavity A trocar ass~bly generally comprises two major components, a trocar tube and an obturator The trocar tubo having 2S the obturator inserted ther-through is directed through the skin to access a body cavity through the tube in ¦ which laparoscopic or arthroscopic surgery and endoscopic proc~dures are to b4 p-r~ormod In order to penetrate the skin, the distal end of the trocar tube is pla¢ed against the sXin which has been cut with a calp l Tho obturator has a sharp point or cutting edge at its di-tal end By applying pres~ure against the proximal end oS the obturator, the sharp point is ~orced through the skin until it enters the body cavity 3S The trocar tube is inserted through the perforation made ~ .

~ ~, ,:`. ;, . : i.`~ ` --s~ -~ 2~208~7 .
by the obturator and the obturator is withdrawn, leaving ;~ the trocar tube as an accessway to the body cavity.
Examples of trocar assembly devices are disclosed in U.S. Patent No. 4,535,773.
The proximal end portion of the trocar tube is typically ad~oined by a housing that dofines a chamber ha~ing an open distal end portion that communicates with the interior lumen defined by the trocar tube. An obturator and other elongate surgical instruments or tool~ axially extend into and are withdrawn from the t~ trocar tube through the proximal end portion of the chamber. It i8 the present practice to provide the ; chamber with a sealing means, such as a sealing grommet or gasket, through which the obturator or other instruments extend. The sealing means seals against the outer surface of the inserted instruments and thereby prevents fluids and insufflation gas from leaving or entering the body cavity through the trocar tube. --It is typically necessary to manipulate a surgical instrument extending through the trocar assembly during a surgical procedure. In so doing, the off-centering or non-axial orientation of the instrument as it extends through the sealing means may prevent the sealing means from maintaining sealing engagement with the instrument. Accordingly, there is a need for a trocar aasembly that includes a fiealinq means that maintains sealing engageoent with an instrument xtending therethrough during orf-centering Or the instrum-nt. It i8 also d-sirable rOr the ~al$ng means to include means to guide an instrumont xtending th-rethrough in a manner that minimizes insert$on and drag ~orces as the instrument is inserted and withdrawn ~rom the trocar assem~ly.

., .

'' ' ' ., ; ~ . ;' ! ' :
:
~ -` 2120~57 _ 3 _ ; - -8u~ y O~ ~h- I~-nt~on In accordance with the principles of the present invention, trocar assembly devices are provided that include an improved seal m~her or gas~et that accommodates and maintains sealing engagement with off-centered instruments extending therethrough The seal member is generally a bellows-type or corrugated seal that i8 made from an elastomeric material The seal member includes an opening formed through an inner section thereof that is dimensioned to accommodate instruments extending therethrough in a particular preselected size range A corrugated portion is formed in an outer section of the seal member in surrounding relationship with the opening so as to enhance flexibility of the outer section of the seal member and thereby maintain the sealing engagement of the inner . ~.-section of the seal with an elongate in6tru~ent - `
extend~ng therethrough in an off-centered orientation In accordance with a preferred embodiment of the invention, the exterior section of the seal member -has a peripheral flange portion that is secured to the housing of the trocar assembly In accordance with another preferred embodiment of the invention, the outer section includes a peripheral wall portion having an annular groove iormed th-rein that recoives a cooperating tongu- portion, a-~ociated with the housing, in sealing engagement therewith The seal mean~ in accordance with the inv-ntion further contemplate~ the inclusion of guide nean- to iacilitate the insertion and withdrawal of longate instruments irom th- trocar assembly The guide means includes ~ plurality of spaced apart pro~ections or ribs that extend outwardly from the outer surface of the inner section o~ the seal ~e~ber to : - 2120857 reduce surface contact between the instrument and the seal member as it i8 inserted through the opening. In accord~nce with a preferred embodiment of the invention, tho projections are a plurality of ~paced apart radially extending ribs that are formed integrally with the inner ~-ction. The ribs preferably extend ~rom at least a portion o~ the corrugated portion of the 8eal member.
In accordance w$th another preferr-d embodi~ent of the invention, radial ribs ~180 extend from an inner surface of the inner section of tho seal m~mber to reduce surface contact with an elongate instrument as it is being withdrawn through the opening of the seal member.
The ribs formed in the inner surface are preferably not -~
in axial alignment with the ribs formed in the outer surface. The inner end portion of the ribs are spaced a short distance from the opening of the seal member.
In accordance with another aspect of the invention, an elastomeric seal member is provided that includes an inner section and an outer section. The inner section includes an opening formed therein for permitting an elongate instrument to pass therethrough `
in sealing enqagement therewith. An annular floating ring i~ provided to separate and isolate the inner and outer sections so that off-center movement of an 2S instrument extending through the opening causes lateral movement of the outer section while m~intaining the inner section in sealing engage~ent with the instrument.
The floating ring may be for~ed ~ro~ a rigid or semi-rigid material. Tbe ring ~ay be integrally formed with the 40al ~ember as an annular area of incroa~ed thic~nes-. Altornatively, th ring may comprise an annular plastic me~ber molded into and separating the inner and outer sections of the seal m~ober. In accordance witb a furtber alternative ~ -, , ... . ~ ~ . .

:

21~8~7 ,,`
embodiment of the invention, the ring may comprise a first substantially rigid annular member secured to one of the surfaces of the seal member A second rigid annular mem~er may be secured to the other surface of the seal member These members may also be secured to each other :' s~or~t~ or~ ~
A more complete appreciation of this invention, and many of the attendant advantage~ thereof -will be readily apparent as the same becomes better ~ -understood by reference to the following detailed description, when considered in conjunction with the accompanying drawings, in which like reference numerals indicate the same or similar components, wherein FIG 1 is a cross-sectional view taken through a trocar ass~ly device that includes a seal me~ber constructed in accordance with a preferred embodiment of the invention;
FIG 2 is a cross-sectional view of the trocar ass~bly shown in FIG 1 through a plane that is oriented 90o from the plane through which FIG 1 is taken;
FIG 3 i8 a crosc-sectional view taken along line 3-3 in FIG 2:
FIG 4 is a perspective view of another mbodiment o~ a troc~r as~embly dovice of the type that includes a 8c~1 member constructed in accordance with th- inv ntion, w$th an obturator partially ext-nded into the trocar tubeJ
FIG 5 i8 an elevational view, partially in cross-sectlon, of the trocar assembly device shown in FIG 4, with the obturator handle attached to the trocar tube and the obturator romoved, showing an alternative .. . . .. ,.. ~. .
.~ . ., ~ . .~ ...... .

2~20857 .
.. - 6 -i embodiment of a 6eal member a~embly con~tructed in ~: accordance with the invention:
FIG. 6 is a cros~-sectional view of a portion o~ the trocar assembly shown in FIG. 5 through a plane that is oriented 90- from the plane through which the cross-section of FIG. 5 i8 taken;
FIG. 7 is an enlarged cro~s-~ectional view of the ~eal membor shown in FIGS. 5-6; -~:
FIG. 8 is a top plan view of the seal member shown in FIG. 7;
FIG. 9 is an enlarged cross-sectional view of the center portion of the seal member shown in FIG. 7;
FIG. 10 is a cross-sectional view of an --alternative embodiment of a seal member ass~bly that includes a seal member constructed in accordance with an :
alternative embodiment of the invention: :
FIG. 11 is a top plan view of the seal member shown in FIG. 10;
FIG. 12 is a cross-sectional view taken along line 12-12 in FIG. 11:
FIG. 13 is a cross-sectional view taken along line 13-13 in FIG. 11;
FIG. 14 is a cross-sectional view of an alternative embodiment of a seal member assembly that includes a seal member constructed in accordance wit~ an alternativ- embodiment of the invention;
FIG. 15 is a top plan vi-w of the seal member shown in FIG. 14:
FIG. 16 is a cross-~ectional view taken along line 16-16 in FIG. lS;
FIG. 17 is a cross-sectional vi~w taken along line 17-17 in FIG. 15;
FIG. 18 is an elevational view, partially in cro~s-section, of an alternative embodiment of a trocar :
:
`~ 212~8~7 . ~

- assembly device, with the obturator removed, showing an ~ -- alternative embodiment of a seal member assembly i~ constructed in accordance with the invention;
; FIG 19 is a top plan view of the seal mP~her S shown in FIG 18;
FIG 20 i8 a cross-sectional view taken along line 20-20 in FIG 19;
FIG 21 i8 a top plan view of another `
alternative ~mhodiment of a seal member construction in accordance with the invention;
FIG 22 is a cross-sectional view taken along line 22-22 in FIG 21;
FIG 23 is a top plan view of another alternative embodiment of a seal member constructed in accordance with the invention;
FIG 24 is a cross-sectional view taken along ~ -line 24-24 in FIG 23;
FIG 25 is a top plan view of another alternative embodiment of a seal m~ker constructed in accordance with the invention;
FIG 26 is a cross-sectional view taken along line 26-26 in FIG 25;
FIG 27 is an enlarged cross-sectional view o.
the center portion of the inner ~ection of the seal member as shown in FIG 26: and FIG 28 i~ an enlarged cross-~ectional view o~ the outer section o~ the seal member as shown in FIG

D~taiL~d D-~or~ption or Pr~-rr-~ k~od~
Referring to FIGS 1-3, an exemplary troc~r assembly 10 i~ ~hown that includes ~ seal member constructed in accordance with the invention a~
di~clo~ed in copending U S Patent Application Serial ~` ` . `'.;':`: `'.. : . : ` - , ~ - . `:, . .

` ` 212~857 `' .

No. 07/779,040, which disclosure i8 incorporated herein by reference. The particular construction of the trocar assembly doQs not form a part of the invention. Trocar a~sembly 10 include~ an outer trocar tube 12 and an inner trocar tube 14. Inner troc~r tube 14 is xtond~ble through outer trocar tube 12.
Outer trocar tube 12 define~ ~n interior lumen 16 and has an open proximal end portion 18 and an open dlstal end portlon 20. The inner di~meter of trocar tube 12 at its di~tal end of distal end portion 20 is preferably in the range from about 15.0 m~ to about 50.0 mm, and most preferably in the range from about 30.0 mm to about 40.0 mm. The proximal end portion 18 of outer trocar tube 12 is of increased dimensions to form a handle or housing portion 22 defining a ch~mber 24. The opening in the proximal end of the housing is defined by ring portion 25.
Inner trocar tube 14 defines an interior lumen 26 and has an open proximal end portion 28 and an open distal end portion 30. The inner diameter of trocar tube 14 at the distal end of its distal end portion 30 is preferably in the range from about 5.0 mm to about ~-15.0 mm, and most preferably in the range from about 10.0 mm to about 12.0 mm. For reasons that will hereinbelow become more apparent, trocar tube 14 has an lntermedlate portion 31 that has an increased diameter 8uch that the outer surface thereof slidingly contacts the lnner surface of outer trocar tube 12. Th- inner diamet-r of the proximal end portion 28 of trocar tube 14 ~8 substantially equal to the lnner dlameter of dlstal end portlon 30. The distal end portlon 30 oxtend~ dlatally beyond the dlstal end of trocar tube 12 and tapers inwardly a~ it extends towards the distal end th-reof. T~e outer ~urface of di~tal end portlon 30 s,~ `'`}~

... ~ .~. . .. .
.:~. . - . . :
', : `.; ' ,,. . ~:

; . . ;

212~8~7 g ::

preferably ha~ square toothed helical threads 32 formed thereon me proximal end portion 28 of inner trocar ~`
tube 14 is provided with an annular or apertured sealing ~-gasket 34 to seal against an implement directed therethrough, as i8 well known in tpe art A cap member 36 is attached to the proximal end portion 28 and has an opening 3a in axial alignment with the opening in sealing gasket 34 Cap member 36 has side walls 40 that extend towards the proximal edge of hou~ing portion 22 As best seen in FIG 2, a latch assembly 42 is provided to releasably attach cap member 36 and inner trocar tube 14 attached thereto to housing portion 22 of `
outer trocar tube 12 via ring 25 atta ded to housing portion 22 Latch ass~ly 42 includes a lat d m~er 44 having a pair of flexible latch activator portions 46 that extend outwardly from openings through opposite sides of cap member 36 and a latch finger portion 48 defining a retaining flange portion 50 associated with each activator portion 46 Ring 25 of the out~r trocar is formed with a pair of retaining portions 52 each of which defines a ramp section 54 and a recessed or lip section 56 As inner trocar tube 14 is extended into outer trocar tube 12 the flange portions 50 of finger portions 48 of latch member 44 contact a corresponding ramp section 54 and are d-fl-cted inwardly as they ride down ramp section 54 Wh-n tho flange portions 50 reach the lip sections 56 they snap outwardly into locking engag-m-nt therewith, a8 hown in FIG 2 When it is noc-ssary to remove trocar tube 14 from troc~r tube 12, the activator portions 46 are depress-d inwardly causing the fl~nge portions 50 to mov inwardly boyond the inner pro~ections of lip sections 56, thus permitting trocar tube 14 to be removed from trscar tube 12 ? ` `~ ;

:: `
- 21208~7 . .
'~ -- 1 0 -- , tl A generally tubular valve seat me_ber 60 is ; located in chamber 24 at the proximal end portion 18 of outer trocar tube 12. The distal end of valve seat member 60 is preferably angled, as best seen in FIG. 2.
A flap valve ~ember 62 of known construction is suitably hinged at 64 and is movable betwe-n a ~-aling position in ~oaling engagement with valve ~eat ~ ber 60, as shown in phantom lines in FIG. 2, and an open position removed Prom valve seat member 60, as shown in solid lines in FIG. 2. Valve member 62 is biased into its ~, sealing position by a suitable spring means (not shown).
A lever member 66 located outside of chamber 24 is } attached to hinge 64 to permit manual movement of valve D' m~mher 62 between its sealing position against a sealing lS gasket 67 attached to seat 60 into its open position -against the spring bias. A sealing gas~et 68 is - provided at the proximal end of valve seat m~ber 60 to seal against the outer surface of trocar tube 14 or an implement as it extends therethrough. Sealing gasket 68 , 20 is a bellows-type seal constructed in accordance with -, the invention to facilitate maintaining a seal during radial motion of instruments inserted therethrough.
Sealing gasket 68 includes a generally planar inner section 70 and an outer section 72. An opening 74 ¦ 2S is ~ormed through inner section 70 for allowing an elongate instrument to pass therethrough in sealing ~
engagement therewith. A corrugated portion 76 i9 formed ,, in outer section 72 in surrounding relationship with op ning 74 80 a~ to maintain the sealing engagement with an elongato implem nt during of~-centering or radial uotion Or the i~ploment with respect to the seal member.
The corrugated portion 76 extends above and below a plane extending through the inner section 70. The outer section 72 has a peripheral Plange portion 78 that is ~;

,.- . . ~.,.. j ., ,.. . . . ., . . , . , . ~ , : .

` . ' ' , '` ' . ` ': , - . .

.. . .. . . . ..

:. ~

r 2 1 2 ~ 8 ~ 7 ` ~
~ 11 ~ ~
- .
suitably mounted in sealing engagement with outer trocar tube 12 The corrugated portion 76 increases the flexibility of the outer section 72 of seal member 68 to enhance the sealing engagement of the seal member Referring to FIGS 4-9, there is shown an alternative trocar as~embly device 100 incorporating a seal memb-r 134 constructed in accordance with the invention The particular con6truction of the trocar assembly device 100 does not for~ a part of the lnvention Trocar assembly device 100 includes a trocar tube 112, an obturator 114, and a housing or handle 116 Trocar tube 112 defines an interior lumen having an open distal end portion 118 and an open proximal end portion 120 Proximal end portion 120 extends into and is mounted in a distal end portion 122 of handle 116 --Handle 116 has an open proximal end portion 124 that defines an opening 126 Opening 126 is provided with a seal member assembly 128 that includes a seal member 134 constructed in accordance with the present invention and described in detail herein-below Obturator 114 is slidably and removably extendable within trocar tube 112 and is inserted into handle 116 and trocar tube 112 through seal member 2S as-embly 128 and opening 126 An obturator handle 132 is provided at the proximal end of the obturator and a sharpened point or blade ~not shown) i8 ~ormed at the dist~l ond thereor A~ is wall known in th- art, seal momber a~-mbly 128 cooperate- with obturator 114, or a ~urgical instrumont extending through trocar tube 112, to ~e~lingly ongage the outer surfac thereo~ and thereby praclude the passage ef ~luids through handle 116. :~:

.. .. ........ ~ . ,, . . , .. -.. . ., .. - .~ . , . . ~. ~, .
:. ... ~, ,.~ . ... . .. .
; ' . - .. ,. ;..... . , : ~ ~
~ . . .

. -- 2120857 , A flap valve ascembly 136 is suitably supported in end portion 124. Flap valve assembly 136 defines a passageway 138 having a hinged flap valve 140 at the distal end thereof and an ela-tomeric seal member 134 at the proximal end thereof. A rigid or flexible guide/retalner 142 is preforably secured within end portion 124 to guide an obturator or imple~ont through seal momber 134 into passageway 138 and to retain the seal member.
Referring to FIGS. 5-9, the elastomeric seal member 134, constructed in accordance with the invention, includes a generally planar inner section 144 ~ `
and an outer section 146. An opening 148 is formed through inner section 144 and is dimensioned to permit an obturator or implement to pass therethrough in sealing engagement therewith. A corrugated portion 150 is formed in outer section 146 in surrounding relationship with opening 148. Corrugated portion 150 extends proximally from a plane passing through inner section 144. The inner section 144 may be formed with a greater thickness than corrugated portion 150. outer section 146 is formed with a distally extending peripheral wall or flange portion 152 having an inwardly facing annular qroove or recess 154 formed therein.
Flange portion 152 is generally in axial alignment with corrugated portion 150. A tongue portion 156 associated with the flap valve assembly 136 is received in sealed relation~hip with groove 154.
In accordance with an alternativ embodiment of the invention, a plurality of spaced apart pro~-ctions or ribs 158 may be provided to extend outwardly from the proximally facing surface of the seal member and radially with respect to opening 148.
Pro~ections 158 may be integrally formed in inner -~ .
~, . .

~, . ~ . .

: ~

~, . . .
, section 144 and a portion of corrugated portion 150 In accordance with another embodiment of the invention, a plurality of similar radially extending ribs 160 extend outwardly from the distally facing surface of the seal member and radially with re~pect to the opening 148 -, Ribs 160 are preferably not in axial aliqnment with ribs 3'i 158 and only extend from the inner section 144 r Referring to FIG 9, the ribs 158 and 160 have inner end portions that are spaced a short distance from openinq 148 and beveled outwardly and away fro~ the inner portion 144 of seal member 134 to guide an instrument through opening 148 The ribs 158 and 160 are oriented to form about a 45 degree angle with an ;~mediately adjacent rib In operation, as an elong~te obturator or j instrument is directed through opening 148 in seal member 134 in an off-centered relationship thereto, the corrugated portion 150 enhances the flexibility of the outer section 146 of seal member 134 to maintain sealing engaqement between the inner section 144 of the seal member and the implement The projections or ribs 158 serve to reduce surface contact betweon the outer surface of the seal member and the instrument and thereby facilitate the insertion of tho in~trument through opening 148 into hou-ing 116 The pro~ections or ribs 160 ~erve to reduce surface contact between the inner surface of the ¦ e~l m-mber and th- in~trument and th-reby facilitate the removal of th- in-trument from the housing 116 through op-ning 148 Referring to FIGS 10-13, th-re i~ shown another embodiment of a seal me~ber 234 constructed in accordance with the present invention Seal member 234 is shown positioned in an exemplary trocar assembly 200 ' ' , ` `

21208~7 having a housing 216 Houcing 216 has a proximal end portion 224 that is provided with a flap valve assembly ; 236, a portion of which i8 shown in FIG 10 Seal member 234 includes a circular inner section 244 and a generally oval outer section 246 An opening 248 is formed through inner section 244 to permit an obturator or implement to pass th-rethrough in -aling engagem-nt th-rewith A corrugat-d portion 2~0 is ~ormed in outer section 246 in surrounding relationship with opening 248 Corrugated portion 250 extends proximally of a plane passing through inner section 244 Outer section 246 is formed with a proximally extending peripheral wall or lip 252 that is generally perpendicular to inner section 246 The outer edge of wall 252 is formed as a bead portion 254 that is received in sealing engagement between a guide/retainer ~--242 and the inner surface of end portion 224 The seal m~er 234 may be pro~ided with radially extending ribs or projections (not shown) similar to ribs 158 or 160 discussed above with respect to seal member 134 The operation of seal member 234 is - ~ -~
similar to that discussed above with respect to seal member 134 Referring to FIGS 14-17, there is shown anothor embodiment of a soal member 334 constructed in accordance with the present invention Seal member 334 is similar in construction to seal m~mber 234 with the addition of an annular floating ring tbat separates and i~olat-- tbe inner s-ction from tbe outer section to ~acilitat- movement o~ tbe outer section while maintaining tbe inner section in sealing engagement witb an instrument Seal member 334 is shown positioned in an exemplary trocar assembly 300 bavinq a housing 316 Hou~ing 316 has a proximal end portion 324 tbat is - . . ~.
. . . ~ . .. ~, .
. .. ...:.

, .
.. ;

. , ` - 21208~7 .; .
s - 15 -. .
provided with a flap valve assembly 336, a portion of which is shown in FIG 14 Seal momber 334 includes a circular inner section 344 and a generally oval outer section 346 An opening 348 is rormed through inn-r section 344 to ~' permit an obturator or instrument t,o pass therethrough t, in s-allng engagement therewith A corrugated portion 3SO is ~orm-d in outer soction 346 in surrounding i relationship with opening 348 Corrugated portion 350 extenda proximally from a plane passing through inner aection 344 Outer section 346 is formed with a ; proximally extending peripheral wall or lip 352 that is gonerally perpendicular to inner section 346 The i proximal edge of wall 352 is formed as a bead position 354 that is received in sealing engagement between a ` guide/retainer 342 and the inner surface of end portion The inner section 344 may be provided with radially extending ribs or projections (not shown) similar to ribs 158 or 160 discussed above with respect i to seal member 134 An annular floating ring portion 362 separates inner section 344 from outer section 346 Floating ring portion 362 extends outwardly from either the proximally and/or the distally facing surfacea of seal member 334 ! Floating ring portion 362 i~ preferably molded integrally witb the seal memb-r ao as to rorm a semi-rigid ring or collar Alternativ-ly, rloating ring portlon 362 may be formed Or a rigid or ae~i-rigid material, such as plaatic, metal or the like, that is either molded into the seal memb-r or suitably attached thereto The operation of seal member 334 is similar to that di~cussed above with respect to seal member 134 . ' ~:.` . . . '. , .
` `- ` , '''` , ~ ' ` :' `

~-: ..:
..
,, ~, .- ` 2120857 .~ :

~he floating ring portion 362 allows the inner section 344 to seal against an instrument and the outer section 346 to be compliant and move laterally with off-center lor sideways) forces on the instrument In so doing, the lnner ~ection 344 is isolated and tha sideways ~ovement o~ the instrument does not disrupt the seal, but infitead deflects the outer section 346 that is external to the ring portion 362 Re~erring to FIGS 18-20, there is shown yet another embodlment of a seal member 434 constructed in accordance with the present invention wherein the --corrugated portion 450 includes at least two corrugations formed therein Seal member 434 is shown positioned in an exemplary trocar ass~mbly 400 having a housing 416 Housing 416 has a proximal end portion 424 that is provided with a flap valve ass~hly 436 ~ -Seal member 434 includes a circular inner ~`
section 444 and a generally circular outer section 446 An opening 448 is formed through inner section 446 to permit an obturator or implement to pas~ therethrough in sealing engagement therewith A corrugated portion 450 is formed in outer section 446 in surrounding relationship with opening 448 Corrugated portion 450 includes an inner corrugation 464 and an outer corrugation 466 Inner corrugation 464 extends distally o~ the plane that passes through inner ~ection 444 and outer corrugation 466 extends proximally of such plane Outer section 446 is formed with a proximally extending annular flange portion 452 having a groova or recess 454 formed therein Flange portion 452 i8 received in an annular recess 468 formed in flap valv~ bly 436 A
rigid or flexible guid-/retainer member 442 is provided to guide an obturator or implement through seal me~ber 434 into passageway 438 Guide/retainer member 442 ~r,~.. . . : . ' ' '' ' , ~ .
- .

. ~ -21208~7 includes a distally extending flange portion 470 that is received in recess 454 to retain seal me~ber 434 in sealing engagement with flap valve asse~bly 436 A plurality of spaced apart projections or 5 ribs 458 m~y be provided to extand outwardly from the proximally ~acing surrace of the seal me~ber and radially with respect to opening 448 Proj-ctions 458 are integrally form d in innor section 144 A plurality of similar radially extending ribs 460 may be provided to extend outwardly from the distally facing surface of the seal member Rib6 460 may, or may not, be in axial alignment with ribs 458 The inner and outer ~nd portions of rib6 458 and 460 are beveled as shown in FIG 20 -~
The operation of seal m~ber 434 i8 similar to that discussed above with respect to seal ~her 134 Referring to FIGS 21-22, there is shown a further embodiment of a seal member 534 constructed in accordance with the invention Seal m~b~r 534 is similar in construction to seal member 434 and includes a floating annular ring portion 562 that separate= the inner section 544 and the outer section 546 The common elements of seal members 434 and 534 are identified by reference numorals having the same last two digits and reference is made to th- above di-cussion of such elements Float~ng ring portion 562 i~ shown extending proximally ~rom tho outer surface of ~eal member 534 and i- molded integrally th-rewith However, the floating ring portion 362 may be alternatively formed as discu-~ed above with respect to seal member 334 ~s shown in FIG 22, the outer portion Or inner section 544 may be formed to have an increased thickness . . ... :.. .... ... ~
.: ~ -., ; ~ . . .;. .. ; ~ .. ~ ..
` . . . :- - , . . :

. . . . -. ~:: , ` :
.: : :~ .: . ' :
` -- 21208~7 ;`. `
" .. . . .
.
: Referrinq to FIGS. 23-24, there is shown a still further embodiment of a seal member 634 constructed in accordance with the invention. Seal member 634 i8 Bimilar in construction to 8e~1 member 434 except that the corrugated portion includQs a single corrug~tion. The common lements o~ seal ~embers 434 ;; and 634 are identified by reference numerals having the same last two digits and reference i8 ~ade to the above discussion of such elements.
Referring to FIGS. 25-28, there i8 shown yet ~r another embodiment of a seal member 734 constructed in accordance with the invention. Seal member 734 is similar in construction to seal member 634 except that ; the inner section does not include the proxi~lly or distally facing radial ribs and is provided with radially extending pleats formed therein. The common ~; elements of seal m~ers 634 and 734 are identified by , reference numerals having the ~ame la~t two digits and J reference is made to the above discussion of such 'l 20 elements. .
¦ Inner section 744 is formed with pleats 770 ~ `
~ that extend radially from a center hub portion 772 that -~
i surrounds opening 748 and a floating ring portion 762 ~ `
; that separates inner section 744 from outer section 746.
In accordance with a preferred embodiment the pleats 770 have an included angle of about 52 degrees. The pleats have a height that is subatantially equal to tho thickness of the center hub portion 772 and the floating ring portion 762.
The 8eal ~e~b-rs disclosed herein aro preferably made ~rom an elastomeric material sucb as silicon, latex, rubber, polyurothane, Xraton- (a thermoplastic elastomeric A-B-A, styrene-i~oprene-`.:
.'., 8 ~ ~
`;
. -- 19 --., styrene, block copolymer manufactured by Shell Chemical Company) or the like.
.'~ From the foregoing it will be observed that ~ :
~; numerous modifications and corrections can be effected without departing from the true spirit and scope of the ; novel concepts of the present invention. It will be understood that no limitation with respect to the ,~ ~pecific embodiments illu~trated herein i~ intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall vlthln the cope of the claim~.

.,:' . `~ ' ` , ~

Claims (42)

1. A trocar assembly for providing communication into an anatomical cavity, comprising:
(a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lessor cross-sectional dimension therethrough;
(b) housing means adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; and (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member.
2. The trocar assembly as defined in claim 1 wherein said outer section of said seal member has a peripheral flange portion that is in sealing engagement with said housing means.
3. The trocar assembly as defined in claim 1 wherein said outer section includes a peripheral wall portion having a groove formed therein that receives an annular tongue portion associated with said housing means in sealing engagement therewith.
4. The trocar assembly as defined in claim 1 wherein a plurality of spaced apart projections extend outwardly from a proximally facing surface of said inner section to reduce surface contact with an elongate instrument inserted into said housing means through said opening in said seal member.
5. The trocar assembly as defined in claim 4 wherein said projections are a plurality of spaced apart radially extending ribs formed integrally in said inner section.
6. The trocar assembly as defined in claim 4 wherein said radial ribs extend from at least a portion of said corrugated portion of said seal member.
7. The trocar assembly as defined in claim 5 wherein a plurality of spaced apart radially extending ribs extend outwardly from a distally facing surface of said inner section to reduce surface contact with an elongate instrument withdrawn from said housing means through said opening in said seal member.
8. The trocar assembly as defined in claim 7 wherein said ribs formed in said proximally facing surface are not in axial alignment with said ribs formed in said distally facing surface.
9. The trocar assembly as defined in claim 5 wherein said ribs have inner end portions that are spaced a short distance from said opening in said seal member.
10. The trocar assembly as defined in claim 9 wherein said inner end portions of said ribs are bevelled outwardly and away from said inner portion of said seal member.
11. The trocar assembly as defined in claim 1 wherein said corrugated portion is located adjacent the peripheral edge of said seal member.
12. The trocar assembly as defined in claim 11 wherein said flange portion is substantially in axial alignment with said corrugated portion.
13. The trocar assembly as defined in claim 5 wherein each of said ribs is oriented to form about a 45 degree angle with an immediately adjacent rib.
14. The trocar assembly as defined in claim 7 wherein said ribs extending from said distally facing surface of said seal member have inner end portions that are spaced a short distance from said opening in said seal member.
15. The trocar assembly as defined in claim 14 wherein said inner end portions of said ribs extending from said distally facing surface of said seal member are bevelled outwardly and away from said inner surface of said seal member.
16. The trocar assembly as defined in claim 15 wherein said outer end portions of said ribs extending from said distally facing surface of said seal member terminate immediately adjacent said corrugated portion.
17. The trocar assembly as defined in claim 1 wherein said inner section has a greater thickness than said corrugated portion.
18. The trocar assembly as defined in claim 1 wherein said outer section includes a generally flat annular portion that extends outwardly from said corrugated portion.
19. The trocar assembly as defined in claim 18 wherein a plurality of spaced apart projections extend outwardly from a proximally facing surface of the inner section of said seal member to reduce surface contact between an elongate instrument inserted into said housing means through said opening in said seal member.
20. The trocar assembly as defined in claim 19 wherein said projections are a plurality of spaced apart radially extending ribs formed integrally in said inner section.
21. The trocar assembly as defined in claim 20 wherein said radial ribs extend from at least a portion of said corrugated portion of said seal member.
22. The trocar assembly as defined in claim 21 wherein a plurality of spaced apart radially extending ribs extend outwardly from a distally facing surface of the inner section of said seal member to reduce surface contact with an elongate instrument withdrawn from said housing means through said opening in said seal member.
23. The trocar assembly as defined in claim 22 wherein said ribs formed in said proximally facing surface are not in axial alignment with the ribs formed in said distally facing surface.
24. The trocar assembly as defined in claim 20 wherein said ribs have inner end portions that are spaced a short distance from said opening in said seal member.
25. The trocar assembly as defined in claim 22 wherein said ribs extending from said distally facing surface of said seal member have inner end portions that are spaced a short distance from said opening in said seal member.
26. The trocar assembly as defined in claim 1 wherein said corrugated portion extends proximally from a plane passing through said inner section.
27. The trocar assembly as defined in claim 1 wherein said corrugated portion includes an inner corrugation and an outer corrugation.
28. The trocar assembly as defined in claim 27 wherein said inner corrugation extends distally from a plane passing through said inner section and said outer corrugation extends proximally of said plane.
29. The trocar assembly as defined in claim 1 wherein said inner section has pleats formed therein that extend radially outward from said opening in said seal member.
30. A trocar assembly for providing communication into an anatomical cavity, comprising (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough;
(b) housing means adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough;
(c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member; and (d) said seal member having an annular floating ring separating said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
31. The trocar assembly as defined in claim herein said ring is a rigid material.
32. The trocar assembly as defined in claim 30 wherein said ring is a semi-rigid material.
33. The trocar assembly as defined in claim 30 wherein said ring is integrally formed as an annular area of increased thickness.
34. The trocar assembly as defined in claim 30 wherein said ring is an annular plastic member molded into said seal member.
35. The trocar assembly as defined in claim 30 wherein said ring includes a first substantially rigid annular member secured to one of the surfaces of said seal member.
36. The trocar assembly as defined in claim 35 wherein said ring further includes a second rigid annular member secured to the other surface of said seal member.
37. The trocar assembly as defined in claim 36 wherein said first and second annular members are secured to each other.
38. A trocar assembly for providing communication into an anatomical cavity, comprising:

(a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough;
(b) housing means adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; and (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having an annular floating ring separating said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
39. The trocar assembly as defined in claim 38 wherein said ring is a rigid material.
40. The trocar assembly as defined in claim 38 wherein said ring is a semi-rigid material.
41. The trocar assembly as defined in claim 38 wherein said ring is integrally formed as an annular area of increased thickness.
42. The trocar assembly as defined in claim 38 wherein said ring includes a first substantially rigid annular member secured to a proximally facing surface of said seal member and a second substantially rigid annular member secured to a distally facing surface of said seal member, said first and second annular member are secured to each other.
CA002120857A 1993-04-12 1994-04-08 Seal members for surgical trocars Abandoned CA2120857A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US046,587 1993-04-12
US08/046,587 US5545142A (en) 1991-10-18 1993-04-12 Seal members for surgical trocars

Publications (1)

Publication Number Publication Date
CA2120857A1 true CA2120857A1 (en) 1994-10-13

Family

ID=21944254

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002120857A Abandoned CA2120857A1 (en) 1993-04-12 1994-04-08 Seal members for surgical trocars

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US (2) US5545142A (en)
EP (1) EP0627233B1 (en)
AT (1) ATE162087T1 (en)
CA (1) CA2120857A1 (en)
DE (1) DE69407867T2 (en)
ES (1) ES2111247T3 (en)
GR (1) GR1002220B (en)

Families Citing this family (146)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545142A (en) 1991-10-18 1996-08-13 Ethicon, Inc. Seal members for surgical trocars
US5407433A (en) 1993-02-10 1995-04-18 Origin Medsystems, Inc. Gas-tight seal accommodating surgical instruments with a wide range of diameters
US5470319A (en) * 1994-06-20 1995-11-28 Critical Device Corporation Needleless injection site
US5603702A (en) * 1994-08-08 1997-02-18 United States Surgical Corporation Valve system for cannula assembly
US5628732A (en) * 1996-01-19 1997-05-13 Ethicon Endo-Surgery, Inc. Trocar with improved universal seal
DE19619065C2 (en) * 1996-05-13 2000-12-28 Storz Karl Gmbh & Co Kg Trocar sleeve with a valve
US5820606A (en) * 1996-06-11 1998-10-13 Origin Medsystems, Inc. Reusable cannula with disposable seal
GB2315021A (en) * 1996-07-05 1998-01-21 Rocket Medical Plc Valved, instrument-receiving cannula
US5792113A (en) * 1996-12-12 1998-08-11 Ethicon Endo-Surgerym Inc. Universal seal for a trocar
US5906595A (en) * 1997-04-25 1999-05-25 Ethicon Endo-Surgery, Inc. Trocar having protector with flexible end and improved seal assembly
DE69838231T2 (en) 1997-05-02 2008-05-08 United States Surgical Corp., Norwalk The cannula assembly
US5925041A (en) * 1997-05-14 1999-07-20 Ethicon Endo-Surgery, Inc. Monopolar electrosurgical trocar
US5984921A (en) * 1997-05-14 1999-11-16 Ethicon-Endo-Surgery, Inc. Method and apparatus for applying electrical energy to medical instruments
US5961514A (en) * 1997-05-14 1999-10-05 Ethicon Endo-Surger, Inc. Cordless electrosurgical instrument
ES2329158T3 (en) 1997-05-28 2009-11-23 Tyco Healthcare Group Lp OBTURATION SYSTEM FOR TROCAR.
US5779697A (en) * 1997-05-28 1998-07-14 Linvatec Corporation Arthroscopic cannula with fluid seals
US5951552A (en) * 1997-06-30 1999-09-14 Ethicon Endo-Surgery, Inc. Capacitively coupled cordless electrosurgical instrument
US5916215A (en) * 1997-06-30 1999-06-29 Ethicon Endo-Surgery, Inc. Inductively coupled electrosurgical trocar
US6106519A (en) 1997-06-30 2000-08-22 Ethicon Endo-Surgery, Inc. Capacitively coupled electrosurgical trocar
US5849020A (en) * 1997-06-30 1998-12-15 Ethicon Endo-Surgery, Inc. Inductively coupled electrosurgical instrument
US6416499B2 (en) 1997-07-30 2002-07-09 Cook Incorporated Medical fluid flow control valve
NL1007997C2 (en) * 1998-01-09 1999-07-12 Cordis Europ Device for inserting an elongated medical device.
US5989224A (en) * 1998-02-23 1999-11-23 Dexide Corporation Universal seal for use with endoscopic cannula
JP4208266B2 (en) 1998-04-13 2009-01-14 アプライド メディカル リソーシーズ コーポレイション Conical universal seal with non-uniform surface and sealing device including the same
US6402748B1 (en) 1998-09-23 2002-06-11 Sherwood Services Ag Electrosurgical device having a dielectrical seal
US20040236347A1 (en) * 1999-03-12 2004-11-25 Olympus Optical Co., Ltd. Trocar sheath tube
US6258065B1 (en) * 1999-03-26 2001-07-10 Core Dynamics, Inc. Surgical instrument seal assembly
DE19925324C1 (en) * 1999-06-02 2001-01-25 Winter & Ibe Olympus Trocar sleeve with duckbill valve
AU2741801A (en) 1999-12-30 2001-07-16 Cook Vascular Incorporated Splittable medical valve
US6595946B1 (en) 2000-02-25 2003-07-22 United States Surgical Corporation Valve assembly
US20010042702A1 (en) * 2000-04-17 2001-11-22 Stuntz Gordon F. Cycle oil conversion process
GB0012461D0 (en) 2000-05-24 2000-07-12 Surgical Innovations Ltd Surgical seal
DE60135765D1 (en) * 2000-10-13 2008-10-23 Tyco Healthcare VALVE ASSEMBLY WITH A STRUCTURE FOR DIAMETER REDUCTION OF A TROCAR
US20060020281A1 (en) * 2000-10-13 2006-01-26 Smith Robert C Valve assembly including diameter reduction structure for trocar
US6942671B1 (en) 2000-11-06 2005-09-13 Tyco Healthcare Group Lp Surgical sealing apparatus
US6629530B2 (en) * 2000-12-22 2003-10-07 Kimberly-Clark Worldwide, Inc. Single-element sealing valve for a respiratory support system
EP2140891B1 (en) 2001-05-18 2013-03-27 DEKA Products Limited Partnership Conduit for coupling to a fluid delivery device
US8034026B2 (en) 2001-05-18 2011-10-11 Deka Products Limited Partnership Infusion pump assembly
US6989003B2 (en) * 2001-08-31 2006-01-24 Conmed Corporation Obturator and cannula for a trocar adapted for ease of insertion and removal
US7344519B2 (en) * 2001-08-31 2008-03-18 Conmed Corporation Trocar system
EP1443991A4 (en) * 2001-11-13 2007-03-14 Applied Med Resources Multi-seal trocar system
US6783516B2 (en) * 2001-11-13 2004-08-31 Neosurg Technologies, Inc. Trocar
US6830578B2 (en) * 2001-11-26 2004-12-14 Neosurg Technologies, Inc. Trocar
US6770063B2 (en) * 2002-04-23 2004-08-03 Uresil, L.P. Thoracic vent kit
JP2005519713A (en) * 2002-04-26 2005-07-07 タウト インコーポレイテッド Floating seal assembly for trocar
US20060220325A1 (en) * 2002-04-26 2006-10-05 Mcfarlane Richard H Floating seal assembly for a trocar
US7632250B2 (en) 2002-05-10 2009-12-15 Tyco Healthcare Group Lp Introducer seal assembly
US20040066008A1 (en) * 2002-10-04 2004-04-08 Smith Robert C. Introducer seal assembly
WO2004010883A1 (en) 2002-07-25 2004-02-05 Sherwood Services Ag Electrosurgical pencil with drag sensing capability
US7083626B2 (en) * 2002-10-04 2006-08-01 Applied Medical Resources Corporation Surgical access device with pendent valve
DE60336093D1 (en) * 2002-11-08 2011-03-31 Tyco Healthcare Self-closing cannula
CA2522617C (en) * 2003-04-25 2012-04-17 Tyco Healthcare Group Lp Surgical access apparatus
US6960164B2 (en) * 2003-08-01 2005-11-01 Neosurg Technologies, Inc. Obturator tip for a trocar
US20050040065A1 (en) * 2003-08-22 2005-02-24 O'heeron Peter T. Medical procedure kit
JP2007506527A (en) * 2003-09-24 2007-03-22 アプライド メディカル リソーシーズ コーポレイション Anti-inversion trocar seal
US7585288B2 (en) * 2004-01-23 2009-09-08 Genico, Inc. Trocar and cannula assembly having conical valve and related methods
US20050165433A1 (en) * 2004-01-23 2005-07-28 Haberland Gary W. Trocar having planar fixed septum seal and related methods
US7842013B2 (en) 2004-01-23 2010-11-30 Genico, Inc. Trocar and cannula assembly having conical valve and related methods
US20060047293A1 (en) * 2004-01-23 2006-03-02 Haberland Gary W Trocar having planar fixed septum seal and related methods
US7320694B2 (en) * 2004-03-11 2008-01-22 Coopersurgical, Inc. Obturator tip
US20050203467A1 (en) * 2004-03-15 2005-09-15 O'heeron Peter T. Trocar seal
US20050209608A1 (en) * 2004-03-22 2005-09-22 O'heeron Peter T Trocar seal
US20050209607A1 (en) 2004-03-22 2005-09-22 John Lipchitz Medical cannula assembly
AU2005274786B2 (en) * 2004-07-21 2010-08-12 Covidien Lp Introducer assembly with suspended seal
US7608082B2 (en) * 2005-01-06 2009-10-27 Tyco Healthcare Group Lp Surgical seal for use in a surgical access apparatus
US7766824B2 (en) * 2005-03-31 2010-08-03 Tyco Healthcare Group Lp Surgical hand access apparatus
US7591802B2 (en) 2005-04-29 2009-09-22 Applied Medical Resources Corporation Seal housing having anti-inversion features
US7500974B2 (en) 2005-06-28 2009-03-10 Covidien Ag Electrode with rotatably deployable sheath
AU2006304892A1 (en) 2005-10-14 2007-04-26 Applied Medical Resources Corporation Surgical access port
EP1957085A2 (en) * 2005-11-08 2008-08-20 Ranbaxy Laboratories, Ltd. Macrolides as anti-inflammatory agents
US8579807B2 (en) 2008-04-28 2013-11-12 Ethicon Endo-Surgery, Inc. Absorbing fluids in a surgical access device
US8690831B2 (en) 2008-04-25 2014-04-08 Ethicon Endo-Surgery, Inc. Gas jet fluid removal in a trocar
US7789861B2 (en) * 2006-04-18 2010-09-07 Ethicon Endo-Surgery, Inc. Pleated trocar seal
US8728037B2 (en) * 2006-04-18 2014-05-20 Ethicon Endo-Surgery, Inc. Pleated trocar seal
US20080177295A1 (en) * 2006-06-29 2008-07-24 Dario Vitali Surgical device having trocar and associated methods
US8932275B2 (en) * 2006-07-07 2015-01-13 Covidien Lp Surgical seal assembly
US7731695B2 (en) 2006-08-25 2010-06-08 Teleflex Medical Incorporated Caged floating seal assembly
US7798991B2 (en) * 2006-11-14 2010-09-21 Genico, Inc. Trocar and cannula assembly having variable opening sealing gland and related methods
US20080171988A1 (en) 2007-01-17 2008-07-17 Erblan Surgical, Inc. Double-cone sphincter introducer assembly and integrated valve assembly
EP1994895B1 (en) * 2007-05-22 2015-09-23 Covidien LP Surgical portal apparatus with variable adjustment
EP1997444B1 (en) * 2007-05-22 2011-09-14 Tyco Healthcare Group LP Access assembly with whisker seal
US7981086B2 (en) * 2007-05-22 2011-07-19 Tyco Healthcare Group Lp Surgical access assembly with winepress seal
EP1994894A1 (en) * 2007-05-22 2008-11-26 Tyco Healthcare Group LP Access assembly with ribbed seal
US8133174B2 (en) * 2007-05-30 2012-03-13 Tyco Healthcare Group Lp Self constricting orifice seal
US8100929B2 (en) 2007-06-29 2012-01-24 Ethicon Endo-Surgery, Inc. Duckbill seal with fluid drainage feature
US7918826B2 (en) 2007-09-14 2011-04-05 Ethicon Endo-Surgery, Inc. Trocar assembly
US7918827B2 (en) * 2007-09-25 2011-04-05 Tyco Healthcare Group Lp Seal assembly for surgical access device
US20090105635A1 (en) * 2007-10-17 2009-04-23 Tyco Healthcare Group Lp Access assembly with seal lubricant mechanism
US7976501B2 (en) * 2007-12-07 2011-07-12 Ethicon Endo-Surgery, Inc. Trocar seal with reduced contact area
US11235111B2 (en) 2008-04-28 2022-02-01 Ethicon Llc Surgical access device
US8568362B2 (en) 2008-04-28 2013-10-29 Ethicon Endo-Surgery, Inc. Surgical access device with sorbents
US8636686B2 (en) 2008-04-28 2014-01-28 Ethicon Endo-Surgery, Inc. Surgical access device
US8870747B2 (en) 2008-04-28 2014-10-28 Ethicon Endo-Surgery, Inc. Scraping fluid removal in a surgical access device
US9358041B2 (en) 2008-04-28 2016-06-07 Ethicon Endo-Surgery, Llc Wicking fluid management in a surgical access device
USD700326S1 (en) 2008-04-28 2014-02-25 Ethicon Endo-Surgery, Inc. Trocar housing
US8273060B2 (en) 2008-04-28 2012-09-25 Ethicon Endo-Surgery, Inc. Fluid removal in a surgical access device
US7981092B2 (en) 2008-05-08 2011-07-19 Ethicon Endo-Surgery, Inc. Vibratory trocar
US9028448B2 (en) * 2008-06-19 2015-05-12 Covidien Lp Access seal with interstitial channels
US8025640B2 (en) 2008-06-27 2011-09-27 Tyco Healthcare Group Lp Pressurized surgical valve
US7914491B2 (en) 2008-07-17 2011-03-29 Tyco Healthcare Group Lp Constricting mechanism for use with a surgical access assembly
JP5493595B2 (en) * 2008-09-01 2014-05-14 株式会社ジェイ・エム・エス Medical port
US20100081575A1 (en) * 2008-09-22 2010-04-01 Robert Anthony Williamson Methods for creating diversity in libraries and libraries, display vectors and methods, and displayed molecules
AU2009293640A1 (en) 2008-09-22 2010-03-25 Calmune Corporation Methods and vectors for display of 2G12 -derived domain exchanged antibodies
US8262616B2 (en) * 2008-10-10 2012-09-11 Deka Products Limited Partnership Infusion pump assembly
US8016789B2 (en) 2008-10-10 2011-09-13 Deka Products Limited Partnership Pump assembly with a removable cover assembly
US8708376B2 (en) 2008-10-10 2014-04-29 Deka Products Limited Partnership Medium connector
US9180245B2 (en) 2008-10-10 2015-11-10 Deka Products Limited Partnership System and method for administering an infusible fluid
US8223028B2 (en) 2008-10-10 2012-07-17 Deka Products Limited Partnership Occlusion detection system and method
US8066672B2 (en) 2008-10-10 2011-11-29 Deka Products Limited Partnership Infusion pump assembly with a backup power supply
US8267892B2 (en) 2008-10-10 2012-09-18 Deka Products Limited Partnership Multi-language / multi-processor infusion pump assembly
AU2009322166A1 (en) 2008-12-04 2011-07-21 Pivot Medical, Inc. Method and apparatus for accessing the interior of a hip joint, including the provision and use of a novel telescoping access cannula and novel telescoping obturator
US7988671B2 (en) 2009-01-09 2011-08-02 Applied Medical Resources Corporation Pleated trocar shield
CN101480354A (en) * 2009-01-23 2009-07-15 周星 Tank-type general purpose type radial seal ring for puncture outfit and puncture outfit
WO2010117869A1 (en) * 2009-04-06 2010-10-14 Tufts Medical Center Cannula
US9138207B2 (en) 2009-05-19 2015-09-22 Teleflex Medical Incorporated Methods and devices for laparoscopic surgery
US8409084B2 (en) * 2009-08-31 2013-04-02 Covidien Lp Surgical portal apparatus including gear and lockout assembly
WO2011035205A2 (en) 2009-09-18 2011-03-24 Calmune Corporation Antibodies against candida, collections thereof and methods of use
US8454563B2 (en) 2009-10-09 2013-06-04 Rogelio A. Insignares Trocar and cannula assembly having improved conical valve, and methods related thereto
EP2496600A1 (en) 2009-11-04 2012-09-12 Fabrus LLC Methods for affinity maturation-based antibody optimization
US8025641B2 (en) * 2009-12-18 2011-09-27 Tyco Healthcare Group Lp Powered variable seal diameter trocar employing a winepress mechanism
US8721539B2 (en) 2010-01-20 2014-05-13 EON Surgical Ltd. Rapid laparoscopy exchange system and method of use thereof
EP2525720A1 (en) 2010-01-20 2012-11-28 EON Surgical Ltd. System of deploying an elongate unit in a body cavity
US8353874B2 (en) * 2010-02-18 2013-01-15 Covidien Lp Access apparatus including integral zero-closure valve and check valve
US20110237900A1 (en) * 2010-03-25 2011-09-29 Tyco Healthcare Group Lp Portal apparatus with a tubular seal device
MX349622B (en) 2010-09-08 2017-08-07 Halozyme Inc Methods for assessing and identifying or evolving conditionally active therapeutic proteins.
CA2811730C (en) 2010-09-19 2017-12-05 EON Surgical Ltd. Micro laparoscopy devices and deployments thereof
US9119664B2 (en) 2010-12-20 2015-09-01 Covidien Lp Integral foam port
JP5900809B2 (en) * 2011-09-09 2016-04-06 ノルディック メド − コム エービー Catheter introducer assembly
WO2014130636A1 (en) 2013-02-21 2014-08-28 Covidien Lp Surgical access device including lateral moving seal cooperating with bellows attached to proximal wall of cannula house
US10492825B2 (en) 2013-03-15 2019-12-03 Intuitive Surgical Operations, Inc. Sealing multiple surgical instruments
US9888941B2 (en) * 2013-03-15 2018-02-13 Intuitive Surgical Operations, Inc. Sealing multiple surgical instruments
US10292730B2 (en) 2013-03-15 2019-05-21 Intuitive Surgical Operations, Inc. Sealing multiple surgical instruments
WO2014144771A1 (en) * 2013-03-15 2014-09-18 Intuitive Surgical Operations, Inc. Sealing multiple surgical instruments
CN106255469B (en) * 2014-03-17 2020-05-19 直观外科手术操作公司 Cannula seal assembly
JP6599702B2 (en) * 2015-09-10 2019-10-30 テルモ株式会社 Diagnostic imaging catheter
CN106214229B (en) * 2016-08-02 2018-10-19 成都五义医疗科技有限公司 A kind of puncture outfit diaphragm seal containing groove
CN105997205B (en) 2016-08-02 2017-09-22 成都五义医疗科技有限公司 A kind of puncture outfit diaphragm seal and component comprising positive and negative groove
CN106037898B (en) * 2016-08-02 2017-08-25 成都五义医疗科技有限公司 It is a kind of can overall varus puncture outfit sealing system
CN106137340B (en) * 2016-08-02 2017-08-25 成都五义医疗科技有限公司 A kind of puncture outfit diaphragm seal containing groove structure
CN106108986B (en) 2016-08-02 2017-09-22 成都五义医疗科技有限公司 A kind of diaphragm seal and component comprising groove
CN106037899B (en) * 2016-08-02 2017-09-22 成都五义医疗科技有限公司 A kind of puncture outfit diaphragm seal comprising inverted groove
CN105997204B (en) * 2016-08-02 2018-06-29 成都五义医疗科技有限公司 A kind of puncture outfit diaphragm seal of the fold containing multidimensional
CN108652712A (en) * 2017-04-01 2018-10-16 江苏风和医疗器材股份有限公司 Puncture outfit, seal assembly and the diaphragm seal for puncture outfit
US11399865B2 (en) 2019-08-02 2022-08-02 Covidien Lp Seal assemblies for surgical access assemblies
WO2022150679A2 (en) * 2021-01-11 2022-07-14 Washington University Adjustable seal for fluid management system
CN114451970A (en) * 2021-12-24 2022-05-10 浙江医高医疗科技有限公司 Improved ureteral sheath

Family Cites Families (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986484A (en) * 1932-11-18 1935-01-01 Schlueter Ernest Valve stopper
US2898917A (en) * 1958-04-07 1959-08-11 American Cystoscope Makers Inc Surgical retaining device
US3313299A (en) * 1964-02-05 1967-04-11 Richard G Spademan Intravascular catheter with coaxial puncturing means
US3329390A (en) * 1965-02-18 1967-07-04 Eldon E Hulsey Variable orifice valve
US3366363A (en) * 1965-08-09 1968-01-30 H & E Aircraft Company Vent valve
US3487837A (en) * 1967-02-06 1970-01-06 Roy A Petersen Device for holding catheters in position
US3585996A (en) * 1968-07-11 1971-06-22 Levoy S Corp Arterial catheter placement unit and method of use
US3565078A (en) * 1969-04-25 1971-02-23 Bard Inc C R Quick disconnect catheter coupling
US3620500A (en) * 1970-02-04 1971-11-16 Deseret Pharma Variable aperture fluid flow control apparatus
US3703899A (en) * 1971-01-28 1972-11-28 Teodora A Calinog Surgical drainage instrument
US3853127A (en) * 1973-04-03 1974-12-10 R Spademan Elastic sealing member
US3994287A (en) * 1974-07-01 1976-11-30 Centre De Recherche Industrielle Du Quebec Trocar
US3970089A (en) * 1974-08-05 1976-07-20 Saice Dwayne D Cardiovascular catheter seal device
US3977400A (en) * 1974-11-29 1976-08-31 Deseret Pharmaceutical Co., Inc. Catheter placement unit with resilient sleeve and manual sleeve closure
US4000739A (en) * 1975-07-09 1977-01-04 Cordis Corporation Hemostasis cannula
US4096860A (en) * 1975-10-08 1978-06-27 Mclaughlin William F Dual flow encatheter
US4112932A (en) * 1977-02-24 1978-09-12 Chiulli Robert D Laparoscopic cannula
JPS6034241Y2 (en) * 1977-04-25 1985-10-12 オリンパス光学工業株式会社 Endoscope passage sealing device
GB2012919B (en) * 1977-11-24 1982-05-19 Wolf Gmbh Richard Trocar sleeves
US4177814A (en) * 1978-01-18 1979-12-11 KLI, Incorporated Self-sealing cannula
US4180068A (en) * 1978-04-13 1979-12-25 Motion Control, Incorporated Bi-directional flow catheter with retractable trocar/valve structure
US4187849A (en) * 1978-07-28 1980-02-12 Stim Edward M Suction curettage device with valve control and support means for differing diameter tubes
SE414272B (en) * 1978-10-17 1980-07-21 Viggo Ab CANNEL OR CATETER DEVICE
US4261357A (en) * 1979-01-29 1981-04-14 Critikon, Inc. Catheter assembly for intermittent intravenous medicament delivery
US4338934A (en) * 1980-02-19 1982-07-13 Spademan Richard George Intravascular catheter apparatus
DE3042229C2 (en) 1980-11-08 1983-10-27 B. Braun Melsungen Ag, 3508 Melsungen Insertion device for inserting elongated objects into blood vessels
US4430081A (en) * 1981-01-06 1984-02-07 Cook, Inc. Hemostasis sheath
SE426023B (en) * 1981-04-23 1982-12-06 Bengt Gustavsson DEVICE BLA FOR INFANTRY OF CATHEDRES IN BLOOD BLOOD
US4424833A (en) * 1981-10-02 1984-01-10 C. R. Bard, Inc. Self sealing gasket assembly
US4464178A (en) * 1981-11-25 1984-08-07 Dalton Michael J Method and apparatus for administration of fluids
US4535773A (en) * 1982-03-26 1985-08-20 Inbae Yoon Safety puncturing instrument and method
US4475548A (en) * 1982-06-01 1984-10-09 Rudolph Muto Fitting for endotracheal tube apparatus and method of making the fitting
US5308336A (en) * 1982-09-28 1994-05-03 Applied Medical Resources Seal protection mechanism
EP0113520A2 (en) 1982-12-06 1984-07-18 Vance Products Incorporated Nephroscopy cannula
US4512766A (en) * 1982-12-08 1985-04-23 Whitman Medical Corporation Catheter valve
US4610665A (en) * 1983-01-18 1986-09-09 Terumo Kabushiki Kaisha Medical instrument
US4531937A (en) * 1983-01-24 1985-07-30 Pacesetter Systems, Inc. Introducer catheter apparatus and method of use
US4610710A (en) * 1983-05-05 1986-09-09 Ppg Industries, Inc. Method for utilizing magnetic field sensing means for detecting discontinuities in a conductor member associated with a glass sheet
US4601710B1 (en) * 1983-08-24 1998-05-05 United States Surgical Corp Trocar assembly
US4613329A (en) * 1983-09-30 1986-09-23 Sherwood Medical Company Catheter placement device
US4580573A (en) * 1983-10-20 1986-04-08 Medical Device Development Corporation, Inc. Catheter introducer
US4540411A (en) * 1983-11-28 1985-09-10 Sherwood Medical Company Catheter placement device
JPS60234671A (en) * 1984-05-09 1985-11-21 テルモ株式会社 Catheter inserter
GB2168459B (en) * 1984-12-06 1988-07-13 Craig Med Prod Ltd Tube closure device
JPS61154679A (en) * 1984-12-28 1986-07-14 テルモ株式会社 Medical instrument
US4664660A (en) * 1985-04-01 1987-05-12 Becton, Dickinson And Company Chest drainage apparatus with ambient air sealing
US4634432A (en) * 1985-05-13 1987-01-06 Nuri Kocak Introducer sheath assembly
US4705511A (en) * 1985-05-13 1987-11-10 Bipore, Inc. Introducer sheath assembly
DE3518547C2 (en) * 1985-05-23 1994-04-14 Angiomed Ag Hollow needle of a biopsy set
GB8513702D0 (en) 1985-05-30 1985-07-03 Gill S S Expansible trocar
US4670008A (en) * 1985-07-01 1987-06-02 Albertini Beat High flux threaded needle
US4929235A (en) * 1985-07-31 1990-05-29 Universal Medical Instrument Corp. Self-sealing percutaneous tube introducer
US4626245A (en) * 1985-08-30 1986-12-02 Cordis Corporation Hemostatis valve comprising an elastomeric partition having opposed intersecting slits
GB8527646D0 (en) * 1985-11-08 1985-12-11 Cox J A Devices for sampling drainage
US4729914A (en) * 1985-12-30 1988-03-08 Tyndale Plains-Hunter Ltd. Hydrophilic coating and substrate coated therewith
US4654030A (en) * 1986-02-24 1987-03-31 Endotherapeutics Trocar
US4772264A (en) * 1986-06-23 1988-09-20 Regents Of The University Of Minnesota Catheter introduction set
GB8618253D0 (en) * 1986-07-25 1986-09-03 Wallace Ltd H G Intermittent administration of therapeutic substance
US5030206A (en) * 1986-10-17 1991-07-09 United States Surgical Corporation Trocar
US4723550A (en) * 1986-11-10 1988-02-09 Cordis Corporation Leakproof hemostasis valve with single valve member
JPS6431701U (en) * 1987-08-20 1989-02-27
ES2065337T3 (en) 1987-10-13 1995-02-16 United States Surgical Corp TROCAR SET.
DE3737121A1 (en) * 1987-11-02 1989-05-11 Alexander Staeblein Controllable sealing system for catheter and instrument insertion kits
US4909798A (en) * 1987-11-12 1990-03-20 Daig Corporation Universal hemostasis cannula
US4943280A (en) * 1987-12-31 1990-07-24 United States Surgical Corporaiton Self-seating flapper valve for an insufflation cannula assembly
US4954130A (en) * 1988-01-20 1990-09-04 William P. Waters Catheter/heparin lock and method of using same
US4842591A (en) * 1988-01-21 1989-06-27 Luther Ronald B Connector with one-way septum valve, and assembly
US5059186A (en) * 1988-03-07 1991-10-22 Vitaphore Corporation Percutaneous access device
US4857062A (en) * 1988-03-09 1989-08-15 Medical Parameters, Inc. Catheter introducer valve
US4862891A (en) * 1988-03-14 1989-09-05 Canyon Medical Products Device for sequential percutaneous dilation
DE3809127C1 (en) * 1988-03-18 1989-04-13 B. Braun Melsungen Ag, 3508 Melsungen, De
DE8904025U1 (en) * 1988-04-07 1989-05-24 Schneider (Europe) Ag, Zuerich, Ch
US4960412A (en) * 1988-04-15 1990-10-02 Universal Medical Instrument Corp. Catheter introducing system
US4869717A (en) * 1988-04-25 1989-09-26 Adair Edwin Lloyd Gas insufflation needle with instrument port
US4932623A (en) * 1988-05-06 1990-06-12 Hughes Brothers, Inc. Bracket
US4874378A (en) * 1988-06-01 1989-10-17 Cordis Corporation Catheter sheath introducer
US4994027A (en) * 1988-06-08 1991-02-19 Farrell Edward M Percutaneous femoral bypass system
IT1226152B (en) 1988-07-05 1990-12-19 Francesco Pianetti NEEDLE TREQUARTI FOR LAPAROSCOPY.
GB8816033D0 (en) 1988-07-06 1988-08-10 Ethicon Inc Improved safety trocar
US4935008A (en) * 1988-07-20 1990-06-19 Lewis Jr Ronald L Double lumen introducing needle
US4978334A (en) * 1988-09-08 1990-12-18 Toye Frederic J Apparatus and method for providing passage into body viscus
US4950257A (en) * 1988-09-15 1990-08-21 Mallinckrodt, Inc. Catheter introducer with flexible tip
US5000745A (en) * 1988-11-18 1991-03-19 Edward Weck Incorporated Hemostatis valve
US4938259A (en) * 1989-01-18 1990-07-03 Vernay Laboratories, Inc. Fluid flow controller
US5002557A (en) * 1989-04-06 1991-03-26 Hasson Harrith M Laparoscopic cannula
ES1010964Y (en) 1989-06-30 1990-08-01 Fernandez-Blanco Jaraiz Ricardo RAPID PUNCTURE NEEDLE.
US5009643A (en) * 1989-08-09 1991-04-23 Richard Wolf Medical Instruments Corp. Self-retaining electrically insulative trocar sleeve and trocar
US5104383A (en) * 1989-10-17 1992-04-14 United States Surgical Corporation Trocar adapter seal and method of use
US5127626A (en) * 1989-10-31 1992-07-07 Applied Vascular Devices, Inc. Apparatus for sealing around members extending therethrough
US5092846A (en) * 1989-11-07 1992-03-03 Sumitomo Bakelite Company Limited Introducer for medical tube
US5041095A (en) * 1989-12-22 1991-08-20 Cordis Corporation Hemostasis valve
DE4000764A1 (en) * 1990-01-12 1991-07-18 Braun Melsungen Ag APPROACH
US5103854A (en) * 1990-01-22 1992-04-14 Vernay Laboratories, Inc. Low pressure check valve for artificial respiration devices
US5041097A (en) * 1990-02-26 1991-08-20 Johnson Gerald W Intravenous catheter fitting with protective end seal
US5395342A (en) 1990-07-26 1995-03-07 Yoon; Inbae Endoscopic portal
US5073169A (en) * 1990-10-02 1991-12-17 Steve Raiken Trocar support
US5112308A (en) * 1990-10-03 1992-05-12 Cook Incorporated Medical device for and a method of endoscopic surgery
US5158553A (en) * 1990-12-26 1992-10-27 Cardiopulmonics Rotatably actuated constricting catheter valve
JP2548036Y2 (en) * 1991-01-25 1997-09-17 アイシン精機株式会社 Exhaust gas recirculation device
JP2538851B2 (en) * 1991-02-19 1996-10-02 剛 中嶋 Piercing punch
US5205831A (en) * 1991-04-22 1993-04-27 Burron Medical, Inc. Compression gasket for y-connector
US5137520A (en) * 1991-04-24 1992-08-11 Wayne Maxson Cannula skirt
US5180373A (en) * 1991-06-07 1993-01-19 United States Surgical Corporation Valve system for introducing objects into anatomical body portions
US5269763A (en) * 1991-07-18 1993-12-14 Vernay Laboratories, Inc. Self-sealing cannula cap
US5385553A (en) * 1991-07-18 1995-01-31 Applied Medical Resources Corporation Trocar with floating septum seal
DE69229736D1 (en) * 1991-08-30 1999-09-09 Origin Medsystems TROKAR WITH SEVERAL ADAPTERS AND A REMOVABLE OBTURATOR
US5545142A (en) 1991-10-18 1996-08-13 Ethicon, Inc. Seal members for surgical trocars
US5209736A (en) * 1991-10-18 1993-05-11 Ethicon, Inc. Trocar method and apparatus
US5197955A (en) 1991-10-18 1993-03-30 Ethicon, Inc. Universal seal for trocar assembly
US5167636A (en) * 1991-10-24 1992-12-01 Mectra Labs, Inc. Cannula sealing mechanism
US5334164A (en) 1992-01-03 1994-08-02 United States Surgical Corporation Variable interior dimension cannula assembly
US5211370A (en) * 1992-01-06 1993-05-18 Powers Ronald J Variable orifice sealing valve
US5242412A (en) * 1992-01-21 1993-09-07 Blake Joseph W Iii Trocar tube subassembly having sealing ring and duckbill sealing tube having planar, truncate, diverging sealing bills
US5221264A (en) * 1992-03-10 1993-06-22 Wilk Peter J Reduction port for laparoscopic trocar sleeve and related method
US5226891A (en) * 1992-04-07 1993-07-13 Applied Medical Resources Seal protection apparatus
US5407433A (en) * 1993-02-10 1995-04-18 Origin Medsystems, Inc. Gas-tight seal accommodating surgical instruments with a wide range of diameters
US5411483A (en) 1993-02-10 1995-05-02 Origin Medsystems, Inc. Gas-tight seal accommodating surgical instruments with a wide range of diameters
US5380288A (en) 1993-03-30 1995-01-10 Innovasive Devices, Inc. Surgical cannula and trocar system and method of using the same
US5342315A (en) 1993-04-12 1994-08-30 Ethicon, Inc. Trocar seal/protector assemblies
US5312363A (en) * 1993-07-13 1994-05-17 Symbiosis Corporation Low friction slit valve
US5391154A (en) 1993-08-30 1995-02-21 United States Surgical Corporation Trocar seal system
US5366446A (en) 1993-11-17 1994-11-22 Unisurge, Inc. Introducer assembly
US5531758A (en) 1994-03-25 1996-07-02 Ethicon Endo-Surgery, Inc. Sliding reducer seal for surgical trocar

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EP0627233A2 (en) 1994-12-07
US5545142A (en) 1996-08-13
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ATE162087T1 (en) 1998-01-15
EP0627233B1 (en) 1998-01-14
GR1002220B (en) 1996-04-17
US5827228A (en) 1998-10-27
DE69407867T2 (en) 1998-05-20
DE69407867D1 (en) 1998-02-19

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