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WO1996024300A1 - Trocart - Google Patents

Trocart Download PDF

Info

Publication number
WO1996024300A1
WO1996024300A1 PCT/SE1996/000134 SE9600134W WO9624300A1 WO 1996024300 A1 WO1996024300 A1 WO 1996024300A1 SE 9600134 W SE9600134 W SE 9600134W WO 9624300 A1 WO9624300 A1 WO 9624300A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
slit
trocar
collar
inner diameter
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.)
Ceased
Application number
PCT/SE1996/000134
Other languages
English (en)
Inventor
Bo S. BERGSTRÖM
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.)
Individual
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
Priority to AU46828/96A priority Critical patent/AU4682896A/en
Priority to JP8524195A priority patent/JPH10513090A/ja
Priority to EP96902564A priority patent/EP0808134A1/fr
Publication of WO1996024300A1 publication Critical patent/WO1996024300A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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
    • A61B17/3421—Cannulas
    • A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands

Definitions

  • the present invention relates to a trocar, for use during laparoscopy, comprising a tube with a collar at one end and an axial longitudinal slit.
  • a trocar is known, for example from WO 94/22357 which has a slit tube.
  • the tube consists of a flexible material and because of the slit can be expanded radially in order to permit the introduction of an instrument with a larger outer diameter than the inner diameter of the tube.
  • the slit is closed so that its end edges are in contact with each other.
  • the trocar is intended to be used during laparoscopy and permits the use of instruments with large differences in size.
  • the construction is so that it is not possible to identify, grip and suture tissues through the slit because there is no free opening through the slit.
  • gasless laparoscopy holes can be made in the abdominal wall, through which lift rods can be inserted under the abdominal wall and lifted upwardly with a lifting means in order to expand the hole in the abdomen through which instruments can subsequently be fed.
  • a gastight introduction port with especially adapted instruments is not needed. During longer operations where different instruments are introduced through the same hole there is, however, a risk for increasing traumatisation and damage to the tissues which border the hole.
  • the object of the present invention is to provide in the first instant a trocar intended for gasless laparoscopy which permits the use and facilitates the introduction of instruments intended for open abdomen surgery which take up a lot of room and which in this connection protects the tissues around the hole without changing the circumstances of how the instruments are manipulated.
  • the tube being composed of a rigid semi-rigid material and that the slit being so large that a part of a surgical instru ⁇ ment introduced in the trocar can be taken out through the slit without expanding t tube.
  • a trocar which holds apart the tissues of the hole and guides the instruments so that these follow the right path through the abdomina wall at the same time as the different tissue layers of the abdominal wall can be identified through the slit.
  • the slit allows for example the cutting blades of a pair o scissors to be opened and closed through the slit.
  • Fig. 1 shows a perspective view of an embodiment o a trocar according to the invention
  • Fig. 2 shows a side view of the trocar placed o a mandrel
  • Fig. 3 shows a cross-section through an abdomen wall with a trocar introduced through the wall.
  • the trocar 1 comprises a cylindrical tube 2 of rigid or semi-rigid material, for example metal or a suitable plastic material, for example PVC.
  • a collar 3 formed in one piece with the tube.
  • the tube 2 has an axial slit 4 which extends over the whole length of the tube and continues into a slit 5 in the collar 3.
  • the width of the slit 4 is approximately 25% of the inner diameter of the tube 1.
  • the inner dia ⁇ meter of the tube can be approximately 5-15 mm depending on the area of use and the width of the slit can be up to approximately 75% of the inner diameter of the tube. It is most important that the width of the slit is less than the inner diameter so that the trocar can be held in place on for example a mandrel.
  • Fig. 2 shows the trocar 1 closed on a mandrel 6 by means of which the abdominal wall 7 is penetrated (see Fig. 3) in order to introduce the trocar into the abdominal hole 8.
  • Fig. 3 shows a pair of scissors 9 introduced into the trocar 1.
  • One of the cutting blades 10 of the pair of scissors is accommodated in the trocar while the other blade 11 extends out through the slit 4.
  • the hinge 12 of the blades 10, 11 lies at the level of the abdominal wall 7.
  • the trocar 1 according to the invention is in the first instance intended to be used during gasless laparoscopy but it can also be used as a holder of a normal trocar for normal laparoscopy and permits quick changes between gas and gasless laparoscopy respectively the opposite.
  • the collar 3 at the upper end of the tube 2 prevents the trocar 1 from sliding into the abdominal hole 8 and can be used in order to fasten the troakar to the skin, for example with a clamp or through sewing the collar 3 to the skin.

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

L'invention concerne un trocart permettant une laparoscopie sans gaz. Ce trocart est constitué d'un tube (2) avec un collier (3) à une extrémité. Le tube est en plastique ou en métal et il présente une fente (4) à ouverture constante à travers laquelle un instrument, comme par exemple les lames (10, 11) de ciseaux (9) ou un forceps, peut être introduit, sans expansion du tube.
PCT/SE1996/000134 1995-02-07 1996-02-05 Trocart Ceased WO1996024300A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU46828/96A AU4682896A (en) 1995-02-07 1996-02-05 Trocar
JP8524195A JPH10513090A (ja) 1995-02-07 1996-02-05 トロカール
EP96902564A EP0808134A1 (fr) 1995-02-07 1996-02-05 Trocart

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9500419-8 1995-02-07
SE9500419A SE9500419L (sv) 1995-02-07 1995-02-07 Slitstroakar

Publications (1)

Publication Number Publication Date
WO1996024300A1 true WO1996024300A1 (fr) 1996-08-15

Family

ID=20397100

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000134 Ceased WO1996024300A1 (fr) 1995-02-07 1996-02-05 Trocart

Country Status (6)

Country Link
EP (1) EP0808134A1 (fr)
JP (1) JPH10513090A (fr)
AU (1) AU4682896A (fr)
CA (1) CA2212417A1 (fr)
SE (1) SE9500419L (fr)
WO (1) WO1996024300A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2036506A1 (fr) * 2007-09-17 2009-03-18 Alcon, Inc. Canule de trocart
WO2010123652A1 (fr) * 2009-04-23 2010-10-28 Medtronic Inc. Dispositif d'accès à invasivité minimale pour des opérations chirurgicales de valve cardiaque
EP2324782A1 (fr) * 2009-11-18 2011-05-25 Tyco Healthcare Group LP Dispositif de fixation de port
DE102010022403A1 (de) * 2010-06-01 2011-12-01 Geuder Ag Vorrichtung zum Einführen eines Mediums oder eines Instruments in den menschlichen Körper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347150A1 (de) * 1983-12-27 1985-07-04 Beiersdorf Ag, 2000 Hamburg Blasenpunktionsbesteck
WO1994022357A2 (fr) * 1993-03-31 1994-10-13 Inbae Yoon Porte d'entree d'endoscope pour endoscopies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347150A1 (de) * 1983-12-27 1985-07-04 Beiersdorf Ag, 2000 Hamburg Blasenpunktionsbesteck
WO1994022357A2 (fr) * 1993-03-31 1994-10-13 Inbae Yoon Porte d'entree d'endoscope pour endoscopies

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2036506A1 (fr) * 2007-09-17 2009-03-18 Alcon, Inc. Canule de trocart
JP2009066388A (ja) * 2007-09-17 2009-04-02 Alcon Inc トロカール・カニューレ
WO2010123652A1 (fr) * 2009-04-23 2010-10-28 Medtronic Inc. Dispositif d'accès à invasivité minimale pour des opérations chirurgicales de valve cardiaque
US20100274096A1 (en) * 2009-04-23 2010-10-28 Medtronic, Inc. Minimally Invasive Access Device for Heart Valve Procedures
US8753269B2 (en) 2009-04-23 2014-06-17 Medtronic, Inc. Minimally invasive access device for heart valve procedures
EP2324782A1 (fr) * 2009-11-18 2011-05-25 Tyco Healthcare Group LP Dispositif de fixation de port
DE102010022403A1 (de) * 2010-06-01 2011-12-01 Geuder Ag Vorrichtung zum Einführen eines Mediums oder eines Instruments in den menschlichen Körper
DE102010022403B4 (de) 2010-06-01 2018-12-06 Geuder Aktiengesellschaft Vorrichtung zum Einführen eines Mediums oder eines Instruments in den menschlichen Körper

Also Published As

Publication number Publication date
EP0808134A1 (fr) 1997-11-26
SE9500419D0 (sv) 1995-02-07
JPH10513090A (ja) 1998-12-15
AU4682896A (en) 1996-08-27
SE9500419L (sv) 1996-08-08
CA2212417A1 (fr) 1996-08-15

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