CA2116296A1 - Trocar safety shield locking mechanism - Google Patents

Trocar safety shield locking mechanism

Info

Publication number
CA2116296A1
CA2116296A1 CA002116296A CA2116296A CA2116296A1 CA 2116296 A1 CA2116296 A1 CA 2116296A1 CA 002116296 A CA002116296 A CA 002116296A CA 2116296 A CA2116296 A CA 2116296A CA 2116296 A1 CA2116296 A1 CA 2116296A1
Authority
CA
Canada
Prior art keywords
obturator
trocar
safety shield
proximal end
proximal
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
CA002116296A
Other languages
French (fr)
Other versions
CA2116296C (en
Inventor
Richard S. Smith
Kevin L. Houser
Charles A. Hansford
Pamela K. Jacobs
Richard F. Schwemberger
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 Inc
Original Assignee
Ethicon 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 Inc filed Critical Ethicon Inc
Publication of CA2116296A1 publication Critical patent/CA2116296A1/en
Application granted granted Critical
Publication of CA2116296C publication Critical patent/CA2116296C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)

Abstract

A trocar and trocar obturator assembly having an obturator and a locking mechanism responsive to proximal, axial movement of the trocar obturator is disclosed. The trocar obturator has an elongated obturator shaft having a proximal end and a distal end with a piercing tip mounted thereto. The proximal end of the trocar obturator shaft is slidably mounted in a handle such that the obturator shaft is moveable axially. A protective safety shield having a distal end and a proximal end with a flange member mounted to the proximal end is slidably mounted on the trocar obturator. The safety shield is moveable, axially, between an extended distal position and a retracted proximal position. The protective safety shield is disposed concentrically about the obturator. A
lockout arm for locking the safety shield in a locked extended position is mounted in the trocar obturator handle. An actuating collar member is-mounted to the proximal end of the obturator shaft in the obturator handle and is moveable with the obturator shaft. The obturator collar disengages the locking arm when moved proximally and engages the locking arm when trocar is armed. The trocar obturator assembly may be concentrically mounted in a trocar cannula having a passageway for receiving the trocar obturator and safety shield. The locking mechanism is actuated by proximal, axial motion of the obturator.
CA002116296A 1993-02-25 1994-02-23 Trocar safety shield locking mechanism Expired - Lifetime CA2116296C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/021,935 1993-02-25
US08/021,935 US5387197A (en) 1993-02-25 1993-02-25 Trocar safety shield locking mechanism

Publications (2)

Publication Number Publication Date
CA2116296A1 true CA2116296A1 (en) 1994-08-26
CA2116296C CA2116296C (en) 2005-06-14

Family

ID=21806952

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002116296A Expired - Lifetime CA2116296C (en) 1993-02-25 1994-02-23 Trocar safety shield locking mechanism

Country Status (10)

Country Link
US (1) US5387197A (en)
EP (1) EP0617924B1 (en)
JP (1) JPH0747077A (en)
AT (1) ATE159161T1 (en)
AU (1) AU676247B2 (en)
BR (1) BR9400663A (en)
CA (1) CA2116296C (en)
DE (1) DE69406168T2 (en)
ES (1) ES2107745T3 (en)
GR (1) GR940100095A (en)

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CA2116296C (en) 2005-06-14
ATE159161T1 (en) 1997-11-15
AU676247B2 (en) 1997-03-06
BR9400663A (en) 1994-11-01
ES2107745T3 (en) 1997-12-01
JPH0747077A (en) 1995-02-21
GR940100095A (en) 1994-10-31
DE69406168T2 (en) 1998-02-19
EP0617924B1 (en) 1997-10-15
US5387197A (en) 1995-02-07
EP0617924A2 (en) 1994-10-05
EP0617924A3 (en) 1994-12-14
AU5645194A (en) 1994-09-01
DE69406168D1 (en) 1997-11-20

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