CA2129332A1 - Retracting tip trocar assembly - Google Patents

Retracting tip trocar assembly

Info

Publication number
CA2129332A1
CA2129332A1 CA002129332A CA2129332A CA2129332A1 CA 2129332 A1 CA2129332 A1 CA 2129332A1 CA 002129332 A CA002129332 A CA 002129332A CA 2129332 A CA2129332 A CA 2129332A CA 2129332 A1 CA2129332 A1 CA 2129332A1
Authority
CA
Canada
Prior art keywords
piercing tip
retracting
trocar assembly
retracting mechanism
tip
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
CA002129332A
Other languages
French (fr)
Other versions
CA2129332C (en
Inventor
Alex T. Roth
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.)
United States Surgical Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2129332A1 publication Critical patent/CA2129332A1/en
Application granted granted Critical
Publication of CA2129332C publication Critical patent/CA2129332C/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
    • 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
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0801—Prevention of accidental cutting or pricking
    • A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs

Abstract

A retracting tip trocar assembly (1) including a trocar tube (4) and a shaft (3) having a piercing tip (5) at one end thereof.
The device includes a retracting mechanism (A) which allows the piercing tip (5) to be held in a cutting position upon application of an insertion force such as when the piercing tip (5) is pressed against a wall of a human body cavity. Upon release of the inser-tion force, such as when the piercing tip (5) passes through the wall, the retracting mechanism (A) causes the piercing tip (5) to be retracted into the trocar tube (4). The retracting mechanism includes two links (1) pivoting at one end to each other and at the other end respectively to the proximal end of the obturator shaft and to the handle housing (2a).
CA002129332A 1992-03-12 1993-03-01 Retracting tip trocar assembly Expired - Lifetime CA2129332C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/850,089 US5441513A (en) 1992-03-12 1992-03-12 Retracting tip trocar assembly
US07/850,089 1992-03-12
PCT/US1993/001744 WO1993017626A1 (en) 1992-03-12 1993-03-01 Retracting tip trocar assembly

Publications (2)

Publication Number Publication Date
CA2129332A1 true CA2129332A1 (en) 1993-09-16
CA2129332C CA2129332C (en) 2003-08-26

Family

ID=25307231

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002129332A Expired - Lifetime CA2129332C (en) 1992-03-12 1993-03-01 Retracting tip trocar assembly

Country Status (8)

Country Link
US (2) US5441513A (en)
EP (1) EP0630213B1 (en)
JP (1) JP3307394B2 (en)
AU (1) AU671821B2 (en)
CA (1) CA2129332C (en)
DE (1) DE69316740T2 (en)
ES (1) ES2111739T3 (en)
WO (1) WO1993017626A1 (en)

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Also Published As

Publication number Publication date
US5626598A (en) 1997-05-06
JP3307394B2 (en) 2002-07-24
DE69316740T2 (en) 1998-06-10
WO1993017626A1 (en) 1993-09-16
EP0630213B1 (en) 1998-01-28
DE69316740D1 (en) 1998-03-05
JP2000514315A (en) 2000-10-31
AU671821B2 (en) 1996-09-12
EP0630213A1 (en) 1994-12-28
CA2129332C (en) 2003-08-26
US5441513A (en) 1995-08-15
AU3779793A (en) 1993-10-05
ES2111739T3 (en) 1998-03-16

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Effective date: 20130301