CA2235663A1 - Trocar having protector with flexible end and improved seal assembly - Google Patents

Trocar having protector with flexible end and improved seal assembly

Info

Publication number
CA2235663A1
CA2235663A1 CA002235663A CA2235663A CA2235663A1 CA 2235663 A1 CA2235663 A1 CA 2235663A1 CA 002235663 A CA002235663 A CA 002235663A CA 2235663 A CA2235663 A CA 2235663A CA 2235663 A1 CA2235663 A1 CA 2235663A1
Authority
CA
Canada
Prior art keywords
assembly
obturator
protector
distal end
proximal end
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.)
Granted
Application number
CA002235663A
Other languages
French (fr)
Other versions
CA2235663C (en
Inventor
Darrel M. Powell
Richard F. Schwemberger
Salvatore Privitera
William D. Kelly
David J. Keilholz
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 Inc
Original Assignee
Ethicon Endo Surgery Inc
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 Inc filed Critical Ethicon Endo Surgery Inc
Publication of CA2235663A1 publication Critical patent/CA2235663A1/en
Application granted granted Critical
Publication of CA2235663C publication Critical patent/CA2235663C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A61B17/3496—Protecting sleeves or inner probes; Retractable tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; 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
    • A61B2017/3464—Trocars; 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/349—Trocar with thread on outside

Abstract

A surgical trocar has a cannula assembly including a sleeve having a proximal end, a distal end and a passageway therethrough. A housing having an opening is located at the proximal end of the sleeve and is aligned with the passageway of the sleeve. The trocar also includes an obturator assembly which is insertable in the cannula assembly. The obturator assembly includes a handle and an obturator shaft. The obturator shaft has a proximal end connected to the handle and a distal end opposite the proximal end. A penetrating tip is located at the shaft distal end for penetrating tissue. A protector having a distal end is slidably disposed around the obturator shaft for covering the penetrating tip. The protector has an aperture at its distal end for permitting the penetrating tip to pass therethrough. The protector also includes a flexible proximal end movable against the obturator handle to expose the penetrating tip when a proximal force is asserted against the protector. A seal assembly is located in the housing for sealing against the obturator assembly or surgical instruments passed through the cannula assembly. The seal assembly includes an upper seal arrangement having an aperature. The seal assembly also includes a pressure seal located beneath the upper seal arrangement. The pressure seal includes a pair of side walls. At least one rib is located on the inner surface of each side wall.
CA002235663A 1997-04-25 1998-04-23 Trocar having protector with flexible end and improved seal assembly Expired - Fee Related CA2235663C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/846,221 1997-04-25
US08/846,221 US5906595A (en) 1997-04-25 1997-04-25 Trocar having protector with flexible end and improved seal assembly

Publications (2)

Publication Number Publication Date
CA2235663A1 true CA2235663A1 (en) 1998-10-25
CA2235663C CA2235663C (en) 2007-07-03

Family

ID=25297294

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235663A Expired - Fee Related CA2235663C (en) 1997-04-25 1998-04-23 Trocar having protector with flexible end and improved seal assembly

Country Status (7)

Country Link
US (1) US5906595A (en)
EP (1) EP0873721B1 (en)
JP (1) JP4021552B2 (en)
AU (1) AU730756B2 (en)
CA (1) CA2235663C (en)
DE (1) DE69832655T2 (en)
ES (1) ES2255130T3 (en)

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US8870747B2 (en) 2008-04-28 2014-10-28 Ethicon Endo-Surgery, Inc. Scraping fluid removal in a surgical access device
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Also Published As

Publication number Publication date
EP0873721A3 (en) 2000-02-23
AU730756B2 (en) 2001-03-15
JPH1170116A (en) 1999-03-16
EP0873721B1 (en) 2005-12-07
AU6357398A (en) 1998-10-29
EP0873721A2 (en) 1998-10-28
ES2255130T3 (en) 2006-06-16
US5906595A (en) 1999-05-25
JP4021552B2 (en) 2007-12-12
DE69832655T2 (en) 2006-08-17
CA2235663C (en) 2007-07-03
DE69832655D1 (en) 2006-01-12

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EEER Examination request
MKLA Lapsed

Effective date: 20150423