CA2187719A1 - Trocar having an improved tip configuration - Google Patents

Trocar having an improved tip configuration

Info

Publication number
CA2187719A1
CA2187719A1 CA002187719A CA2187719A CA2187719A1 CA 2187719 A1 CA2187719 A1 CA 2187719A1 CA 002187719 A CA002187719 A CA 002187719A CA 2187719 A CA2187719 A CA 2187719A CA 2187719 A1 CA2187719 A1 CA 2187719A1
Authority
CA
Canada
Prior art keywords
trocar
tissue
safety
safety shield
shield
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
CA002187719A
Other languages
French (fr)
Other versions
CA2187719C (en
Inventor
Randy R. Stephens
Steven G. Yapp
Salvatore Privitera
Richard F. Schwemberger
Darrel Powell
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 CA2187719A1 publication Critical patent/CA2187719A1/en
Application granted granted Critical
Publication of CA2187719C publication Critical patent/CA2187719C/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

Abstract

A safety-shielded trocar having an obturator with a linear cutting edge surface defining a base width substantially less than the diameter of the safety shield is disclosed. When the trocar is inserted through tissue, the tissue dilates from the width of the linear incision to accommodate the size of the safety shield of the trocar, thus making it possible to provide an access opening greater than the incisional width made by the linear cutting edge surface of the obturator. In a preferred embodiment, the safety shield has a shield tip region which is asymmetric to facilitate the dilation of the tissue as the trocar is inserted.
CA002187719A 1995-10-16 1996-10-11 Trocar having an improved tip configuration Expired - Lifetime CA2187719C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/543,455 1995-10-16
US08/543,455 US5709671A (en) 1995-10-16 1995-10-16 Trocar having an improved tip configuration

Publications (2)

Publication Number Publication Date
CA2187719A1 true CA2187719A1 (en) 1997-04-17
CA2187719C CA2187719C (en) 2005-12-27

Family

ID=24168137

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002187719A Expired - Lifetime CA2187719C (en) 1995-10-16 1996-10-11 Trocar having an improved tip configuration

Country Status (7)

Country Link
US (2) US5709671A (en)
EP (1) EP0768064B1 (en)
JP (1) JP4008062B2 (en)
AU (1) AU698515B2 (en)
CA (1) CA2187719C (en)
DE (1) DE69605634T2 (en)
ES (1) ES2140033T3 (en)

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US7637896B2 (en) * 2005-03-30 2009-12-29 Ethicon Endo-Surgery, Inc. Obturator tip assembly for a trocar
US8784437B2 (en) * 2005-06-09 2014-07-22 Xlumena, Inc. Methods and devices for endosonography-guided fundoplexy
US8777967B2 (en) * 2005-06-09 2014-07-15 Xlumena, Inc. Methods and devices for anchoring to tissue
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US7988670B2 (en) * 2005-06-30 2011-08-02 Tyco Healthcare Group Lp Trocar assembly with rotatable obturator housing
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US8801741B2 (en) * 2006-05-03 2014-08-12 Applied Medical Resources Corporation Flat blade shielded obturator
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US8870747B2 (en) * 2008-04-28 2014-10-28 Ethicon Endo-Surgery, Inc. Scraping fluid removal in a surgical access device
US11235111B2 (en) 2008-04-28 2022-02-01 Ethicon Llc Surgical access device
US8273060B2 (en) 2008-04-28 2012-09-25 Ethicon Endo-Surgery, Inc. 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
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US8454632B2 (en) * 2008-05-12 2013-06-04 Xlumena, Inc. Tissue anchor for securing tissue layers
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DE102008033374A1 (en) * 2008-07-09 2010-01-14 Aesculap Ag Surgical protection device for a surgical sealing element and surgical sealing system
US20100268029A1 (en) * 2009-04-21 2010-10-21 Xlumena, Inc. Methods and apparatus for advancing a device from one body lumen to another
US9364259B2 (en) * 2009-04-21 2016-06-14 Xlumena, Inc. System and method for delivering expanding trocar through a sheath
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US9226774B2 (en) * 2009-12-17 2016-01-05 Covidien Lp Visual obturator with tip openings
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US9693802B2 (en) 2012-06-06 2017-07-04 Covidien Lp Obturator tip with insufflation pathway
IN2015DN03137A (en) 2012-09-28 2015-10-02 Covidien Lp
JP6342431B2 (en) 2013-02-21 2018-06-13 ボストン サイエンティフィック サイムド，インコーポレイテッドＢｏｓｔｏｎ Ｓｃｉｅｎｔｉｆｉｃ Ｓｃｉｍｅｄ，Ｉｎｃ． Stent for forming anastomosis and medical device including the stent
US9271752B2 (en) * 2013-03-13 2016-03-01 Swan Valley Medical Incorporated Method and apparatus for placing a cannula in a bladder
US20150018844A1 (en) * 2013-07-11 2015-01-15 Hsc Development Llc Dissecting punch for follicular extraction and tools and methods using same
US9888942B1 (en) 2014-12-19 2018-02-13 Ethicon Llc Adaptor for robotics cannula and seal assembly
JP6749545B2 (en) * 2016-08-02 2020-09-02 英博 山本 Thin endoscopic surgical instrument
US11357542B2 (en) 2019-06-21 2022-06-14 Covidien Lp Valve assembly and retainer for surgical access assembly
US11812991B2 (en) 2019-10-18 2023-11-14 Covidien Lp Seal assemblies for surgical access assemblies
US11642153B2 (en) 2020-03-19 2023-05-09 Covidien Lp Instrument seal for surgical access assembly
US11541218B2 (en) 2020-03-20 2023-01-03 Covidien Lp Seal assembly for a surgical access assembly and method of manufacturing the same
US11446058B2 (en) 2020-03-27 2022-09-20 Covidien Lp Fixture device for folding a seal member
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Also Published As

Publication number Publication date
ES2140033T3 (en) 2000-02-16
EP0768064A1 (en) 1997-04-16
JP4008062B2 (en) 2007-11-14
EP0768064B1 (en) 1999-12-15
US5776112A (en) 1998-07-07
US5709671A (en) 1998-01-20
JPH09108233A (en) 1997-04-28
DE69605634D1 (en) 2000-01-20
DE69605634T2 (en) 2000-05-31
AU698515B2 (en) 1998-10-29
AU6798596A (en) 1997-04-24
CA2187719C (en) 2005-12-27

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20161011