CA2462319A1 - Surgical jaw assembly with increased mechanical advantage - Google Patents

Surgical jaw assembly with increased mechanical advantage Download PDF

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Publication number
CA2462319A1
CA2462319A1 CA002462319A CA2462319A CA2462319A1 CA 2462319 A1 CA2462319 A1 CA 2462319A1 CA 002462319 A CA002462319 A CA 002462319A CA 2462319 A CA2462319 A CA 2462319A CA 2462319 A1 CA2462319 A1 CA 2462319A1
Authority
CA
Canada
Prior art keywords
jaw
outer diameter
proximal
clevis
assembly according
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
CA002462319A
Other languages
French (fr)
Other versions
CA2462319C (en
Inventor
Michael Sean Mcbrayer
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
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 CA2462319A1 publication Critical patent/CA2462319A1/en
Application granted granted Critical
Publication of CA2462319C publication Critical patent/CA2462319C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A61B17/0644—Surgical staples, i.e. penetrating the tissue penetrating the tissue, deformable to closed position
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/08—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/08—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound
    • A61B17/083—Clips, e.g. resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/10—Surgical instruments, devices or methods, e.g. tourniquets for applying or removing wound clamps, e.g. containing only one clamp or staple; Wound clamp magazines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2901—Details of shaft
    • A61B2017/2905—Details of shaft flexible

Landscapes

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

Abstract

A flexible clip applier includes a ratchet mechanism adapted to locate a clip pusher to a known location after deployment of a distalmost clip. In addition, the clip applier includes a flexible housing into which a train of clips may be chambered. The flexible housing is constrained from elongation when subject to tensile forces.

In accord with another aspect of the invention, the jaw assembly is adapted to have relatively high mechanical leverage which facilitates tissue compression prior to application of a clip.

Claims (19)

1. A jaw assembly, comprising:
a) a clevis having proximal and distal portions, said distal portion defining a pivot axis;
b) a first jaw coupled to said clevis; and c) a second jaw having a proximal tang and being rotatably coupled to said clevis about said pivot axis, wherein said first and second jaws define a first outer diameter of said jaw assembly, and said second jaw defines a second outer diameter at a location through which said pivot axis extends larger than said first outer diameter.
2. A jaw assembly according to claim 1, wherein:
said first jaw includes a proximal tang and is rotatably coupled to said clevis about said pivot axis.
3. A jaw assembly according to claim 1, wherein:
said proximal portion of said clevis is provided with said first outer diameter.
4. A jaw assembly according to claim 1, wherein:
said second outer diameter is at least five percent larger than said first outer diameter.
5. A jaw assembly according to claim 1, wherein:
said second outer diameter is between five and fifteen percent larger than said first outer diameter.
6. A jaw assembly according to claim 1, wherein:
said second outer diameter is approximately 3.5 mm.
7. A jaw assembly according to claim 1, wherein:
a) a clevis having proximal and distal portions;
b) a first jaw having proximal and distal portions; and c) a second jaw having proximal and distal portions, said proximal portion of said second jaw defining a pivot axis about which said second jaw is rotatable relative to said first jaw on said clevis, wherein said proximal portions of said first and second jaws define a circumferential ridge about said jaw assembly extending radially beyond said distal portions of said first and second jaws.
8. A jaw assembly according to claim 7, wherein:
said ridge extends radially beyond said clevis.
9. A jaw assembly according to claim 7, wherein:
said distal portions of said jaws define a first outer diameter, said ridge defines a second outer diameter, and said proximal portion of said second jaw defines a tang hole, wherein a distance between said pivot axis and said tang hole is greater than structurally possible if said ridge was of said first outer diameter.
10. A jaw assembly according to claim 7, wherein:
said distal portions of said jaws define a first outer diameter, and said ridge defines a second outer diameter at least five percent larger than said first outer diameter.
11. A jaw assembly according to claim 10, wherein:
said distal portions of said jaws define a first outer diameter, and said ridge defines a second outer diameter less than fifteen percent larger than said first outer diameter.
12. A jaw assembly according to claim 10, wherein:
said second outer diameter is approximately 3.5 mm.
13. A jaw assembly, comprising:
a) a tubular member having proximal and distal ends;
b) jaw assembly coupled to said distal end, said jaw assembly including i) a clevis having proximal and distal portions, said distal portion defining a pivot axis, ii) a first jaw coupled to said clevis, and iii) a second jaw having a proximal tang and being rotatably coupled to said clevis about said pivot axis, wherein said first and second jaws define a first outer diameter of said jaw assembly, and said second jaw defines a second outer diameter at a location through which said pivot axis extends larger than said first outer diameter; and c) actuation means for moving said second jaw relative to said first jaw.
14. An endoscopic surgical device, comprising:
a) a tubular member having proximal and distal ends;

b) jaw assembly coupled to said distal end, said jaw assembly including i) a clevis having proximal and distal portions, ii) a first jaw having proximal and distal portions, and iii) a second jaw having proximal and distal portions, said proximal portion of said second jaw defining a pivot axis about which said second jaw is rotatable relative to said first jaw on said clevis, wherein said proximal portions of said first and second jaws define a circumferential ridge about said jaw assembly extending radially beyond said distal portions of said first and second jaws; and c) actuation means for moving said second jaw relative to said first jaw.
15. An endoscopic assembly, comprising:
a) an endoscope having a working channel with a first diameter; and b) an endoscopic instrument extending at least partially within said working channel, said endoscopic instrument including a distal end effector assembly provided with a ridge about its circumference thereby defining ridged and non-ridged portions of said end effector assembly, wherein said ridged portion approximates said first diameter and said non-ridged portion has a second diameter less than said first diameter.
16. An endoscopic assembly according to claim 15, wherein:
said first diameter is approximately 3.5 mm.
17. An endoscopic assembly according to claim 15, wherein:
said distal end effector assembly is a jaw assembly.
18. An endoscopic assembly according to claim 15, wherein:
said first diameter is at least five percent greater than said second diameter.
19. An endoscopic assembly according to claim 15, wherein:
said first diameter is between five and fifteen percent greater than said second diameter.
CA2462319A 2003-03-25 2004-03-25 Surgical jaw assembly with increased mechanical advantage Expired - Fee Related CA2462319C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/396,959 2003-03-25
US10/396,959 US7105000B2 (en) 2003-03-25 2003-03-25 Surgical jaw assembly with increased mechanical advantage

Publications (2)

Publication Number Publication Date
CA2462319A1 true CA2462319A1 (en) 2004-09-25
CA2462319C CA2462319C (en) 2012-02-07

Family

ID=32908245

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2462319A Expired - Fee Related CA2462319C (en) 2003-03-25 2004-03-25 Surgical jaw assembly with increased mechanical advantage

Country Status (7)

Country Link
US (1) US7105000B2 (en)
EP (3) EP1468653B1 (en)
JP (1) JP4498788B2 (en)
KR (1) KR101061387B1 (en)
AU (1) AU2004201039B2 (en)
CA (1) CA2462319C (en)
DE (2) DE602004031162D1 (en)

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