GB1311468A - Cannula and trocar assembly - Google Patents

Cannula and trocar assembly

Info

Publication number
GB1311468A
GB1311468A GB1311468DA GB1311468A GB 1311468 A GB1311468 A GB 1311468A GB 1311468D A GB1311468D A GB 1311468DA GB 1311468 A GB1311468 A GB 1311468A
Authority
GB
United Kingdom
Prior art keywords
cannula
trocar
leading end
piece
front portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
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.)
Forrest J F
Original Assignee
Forrest J F
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 Forrest J F filed Critical Forrest J F
Publication of GB1311468A publication Critical patent/GB1311468A/en
Expired 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
    • A61B17/3417—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
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters

Landscapes

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

Abstract

1311468 Cannula and trocar assemblies J F FORREST 28 April 1970 [30 Jan 1969] 5541/ 69 Heading A5R A cannula and trocar assembly comprises a metallic tubular cannula 11 and a metallic tubular trocar 10, the cannula being a close sliding fit within the trocar and movable between a withdrawn position in which a leading end 19 of the cannula 11 is within trocar 10 and an extended position in which the cannula end 19 projects from the trocar leading end, the leading end of the trocar being bevelled so that it is inclined to the axis of the trocar and being formed with a secondary bevel which meets the interior surface of said leading end to define a sharp cutting edge. The cannula and trocar may be of circular or other cross-sectional shape, such as elliptical. End pieces 13 and 17 are secured to the rear ends of the trocar and cannula respectively, each end piece being formed with a frustoconical front portion and a square cross-section rear portion having a frusto-conical recess therein, the front portion of the cannula end-piece being received in the recess in the trocar end-piece in the extended position of the cannula. The end pieces 13, 17 may be made of synthetic resin.
GB1311468D 1969-01-30 1969-01-30 Cannula and trocar assembly Expired GB1311468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB554169 1969-01-30

Publications (1)

Publication Number Publication Date
GB1311468A true GB1311468A (en) 1973-03-28

Family

ID=9798120

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1311468D Expired GB1311468A (en) 1969-01-30 1969-01-30 Cannula and trocar assembly

Country Status (1)

Country Link
GB (1) GB1311468A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479691A1 (en) * 1980-04-05 1981-10-09 Tersteegen Bernd CANNULA, IN PARTICULAR DIALYSIS CANNULA WITH A BEVEL SIZED HEAD
EP0059784A1 (en) * 1981-03-07 1982-09-15 Michael Dr. Zenz Injection assembly for blocking peripheral nerves, e.g. for plexus anaesthesia
WO1984000692A1 (en) * 1982-08-06 1984-03-01 Sterimed Gmbh Puncture and catheter device for human or animal bodies
EP0239429A1 (en) * 1986-02-18 1987-09-30 Robert T. Dorr Infusion needle
EP0407663A1 (en) * 1989-06-13 1991-01-16 Patrick B. Hazard Percutaneous tracheostomy tube
EP0563306A1 (en) * 1990-12-18 1993-10-06 YOON, InBae Safety penetrating instrument
EP0585826A1 (en) * 1992-09-02 1994-03-09 Olympus Winter & Ibe Gmbh Medical instrument for tissular canalization
DE4312961A1 (en) * 1993-04-21 1994-10-27 Emd S A Trocar with a valve device
US5569288A (en) * 1990-12-18 1996-10-29 Yoon; Inbae Safety penetrating instrument

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479691A1 (en) * 1980-04-05 1981-10-09 Tersteegen Bernd CANNULA, IN PARTICULAR DIALYSIS CANNULA WITH A BEVEL SIZED HEAD
EP0059784A1 (en) * 1981-03-07 1982-09-15 Michael Dr. Zenz Injection assembly for blocking peripheral nerves, e.g. for plexus anaesthesia
WO1984000692A1 (en) * 1982-08-06 1984-03-01 Sterimed Gmbh Puncture and catheter device for human or animal bodies
EP0239429A1 (en) * 1986-02-18 1987-09-30 Robert T. Dorr Infusion needle
EP0407663A1 (en) * 1989-06-13 1991-01-16 Patrick B. Hazard Percutaneous tracheostomy tube
EP0563306A1 (en) * 1990-12-18 1993-10-06 YOON, InBae Safety penetrating instrument
EP0563306A4 (en) * 1990-12-18 1994-10-19 Inbae Yoon Safety penetrating instrument
US5569288A (en) * 1990-12-18 1996-10-29 Yoon; Inbae Safety penetrating instrument
EP0585826A1 (en) * 1992-09-02 1994-03-09 Olympus Winter & Ibe Gmbh Medical instrument for tissular canalization
DE4229310A1 (en) * 1992-09-02 1994-03-10 Winter & Ibe Olympus Medical instrument for creating a tissue channel
DE4312961A1 (en) * 1993-04-21 1994-10-27 Emd S A Trocar with a valve device
DE4312961C2 (en) * 1993-04-21 1998-08-06 Vygon Gmbh & Co Kg Trocar with a valve device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees