WO2008098307A1 - Pince chirurgicale pour os - Google Patents

Pince chirurgicale pour os Download PDF

Info

Publication number
WO2008098307A1
WO2008098307A1 PCT/AU2008/000202 AU2008000202W WO2008098307A1 WO 2008098307 A1 WO2008098307 A1 WO 2008098307A1 AU 2008000202 W AU2008000202 W AU 2008000202W WO 2008098307 A1 WO2008098307 A1 WO 2008098307A1
Authority
WO
WIPO (PCT)
Prior art keywords
surgical
clamping
clamp
femur
longitudinal axis
Prior art date
Application number
PCT/AU2008/000202
Other languages
English (en)
Inventor
Robert Lye
Original Assignee
Robert Lye
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
Priority claimed from AU2007900838A external-priority patent/AU2007900838A0/en
Application filed by Robert Lye filed Critical Robert Lye
Publication of WO2008098307A1 publication Critical patent/WO2008098307A1/fr

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
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
    • A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
    • A61B17/1753—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip for fixing pins through femoral hip prostheses

Definitions

  • the present invention relates to improvements in surgical instruments designed to clamp onto a bone such as the ball end of a femur.
  • the surgical instrument preferably further includes a fifth clamping arm connected to said body and having a proximal and a distal end, said distal end being moveable toward the central longitudinal axis of said body.
  • the actuator is preferably adapted to move at least two of said clamping arms.
  • the surgical instrument preferably further includes a second actuator adapted to move at least in part around the central longitudinal axis of the body to move said distal end of another of said clamping arms toward the central longitudinal axis of said body.
  • the present invention provides a method for clamping a ball end of a femur, the ball end of the femur having a femoral head and a femoral neck, the femoral head having a lower hemisphere oriented toward the femoral neck and an upper hemisphere opposite the lower hemisphere, the femoral neck having an upper surface between the femoral head and the piriformis, the femoral neck having a lower surface at least in part opposite the upper surface, said method including: positioning a surgical clamp relative to the femoral head; contacting a portion of the lower surface of the femoral neck with a portion of the surgical clamp; contacting a portion of the upper surface of the femoral neck with a portion of the surgical clamp; and contacting a portion of the lower hemisphere of the femoral head with a portion of the surgical clamp to align an opening in the surgical clamp relative to the upper hemisphere of the femoral
  • Cradle member 125 includes an upper portion with a pair of generally V-shaped engagement members 126, 128 which are preferably configured for engagement with the lower femoral neck of the femur.
  • the thickness, height and spacing of V-shaped engagement members 126, 128 relative to one another may be varied without departing from the scope of the present invention. It will be appreciated that other engagement means may be used such as surface projections forming, for example, spikes or knurling.
  • the engagement means may be varied in number, for example, having only one V-shaped member or three or more V-shaped members.
  • upper clamping arm 110 includes a proximal end 130, and attachment portion 132 and a distal end 134.
  • Distal end 134 includes an engagement member preferably formed as a bar 136 transverse to the length of arm 110.
  • engagement means may be used such as surface projections forming, for example, spikes or knurling. Additionally, the number, shape, size and configuration of the engagement means may be varied as desired.
  • Lower portion 168 has a slope angle preferably in the range of 10 to 45 degrees relative to the central longitudinal axis, more preferably 25 to 35 degrees.
  • the range described above may include a subset of ranges therein without departing from the scope of the present invention.
  • locking cam wheel 120 includes an upper portion 172, a sideo 174, a lower portion 176 and a passage along its length between upper portion 172 and lower portion 176.
  • Locking cam wheel 120 is configured similar to cam wheel 118 except that it is of greater diameter than cam wheel 118 and lower portion 176 includes a greater slope angle relative to the central longitudinal axis of body 102.
  • the slope angle of lower portion 176 is preferably in the range of 30 to 60 degrees, more5 preferably approximately 45 degrees.
  • the ranges described above may include a subset of ranges therein without departing from the scope of the present invention.
  • Bone clamp 100 is preferably constructed from a material suitable for the surgical environment such as glass bead blasted, 420 grade stainless steel. Other materials are within the scope of the present invention, for example, titanium.
  • cradle arm 108 may be configured to be moveable relative to body 102 in a fashion similar to that described with regard to arms 110, 112.
  • the distal ends of any one of or all of the arms may be configured to engage the femoral head, for example, the lower hemisphere of the femoral head.
  • the arms may be triangulated at 120 degree intervals rather than at 90 degree intervals about the femoral neck.
  • the cams may be configured to slide along the longitudinal axis of the body using one or more tracks rather than being configured for rotation around the central longitudinal axis.
  • One or more spring locks or ratcheting may be used to selectively lock the position of the cam and an associated one or more clamping arms.
  • the clamping arms may be moved into position with a push button pivot arrangement in place of a cam if desired.
  • the cam wheels may be configured to be stationary relative to the length of the body and rotatable about the central longitudinal axis of the body within a circular groove or projection on the exterior of the body.
  • the exterior of the lower portion of each cam wheel may include a spiral groove or thread so that when the cam wheel is rotated, the proximal end of an associated one or more clamping arms is forced along the groove and away from the central longitudinal axis of the body. Rotating the cam wheel in the opposite direction forces the proximal end of the associated one or more clamping arms toward the central longitudinal axis (and unclamps the bone clamp).

Landscapes

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

Abstract

La présente invention concerne un instrument chirurgical (100) destiné à être fixé sur une extrémité sphérique d'un fémur. Ledit instrument inclut un corps (102) ainsi qu'un premier (108), un deuxième (110) et un troisième (112) bras de serrage. Ledit corps (102) présente un axe longitudinal central (CLA). Le premier bras de serrage (108) est raccordé au corps (102), et présente une extrémité proximale (122) et une extrémité distale (124). Le deuxième bras de serrage (110) est raccordé au corps (102), et présente une extrémité proximale (130) et une extrémité distale (134). Le troisième bras de serrage (112) est raccordé au corps (102), et présente une extrémité proximale (140) et une extrémité distale (144). Les extrémités distales d'au moins deux bras de serrage parmi le premier (108), le deuxième (110) et le troisième (112) peuvent se déplacer en direction de l'axe longitudinal central (CLA) du corps (102), afin de permettre la fixation de l'instrument chirurgical (100) autour d'au moins une portion de l'extrémité sphérique du fémur. Les deux bras de serrage ou plus peuvent se déplacer de manière indépendante l'un par rapport à l'autre.
PCT/AU2008/000202 2007-02-15 2008-02-15 Pince chirurgicale pour os WO2008098307A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2007900838 2007-02-15
AU2007900838A AU2007900838A0 (en) 2007-02-15 Surgical bone clamp

Publications (1)

Publication Number Publication Date
WO2008098307A1 true WO2008098307A1 (fr) 2008-08-21

Family

ID=39689559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2008/000202 WO2008098307A1 (fr) 2007-02-15 2008-02-15 Pince chirurgicale pour os

Country Status (1)

Country Link
WO (1) WO2008098307A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011000036A1 (fr) * 2009-07-02 2011-01-06 Atlax Pty Ltd Atf Atlax Trust Appareil de guide pour opération de remplacement de la hanche
CN105662527A (zh) * 2016-03-16 2016-06-15 刘湘静 一种安全性高的骨科用钻骨装置
CN110464416A (zh) * 2019-08-22 2019-11-19 李亮 一种安全性高的急诊骨科用钻骨装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896663A (en) * 1988-10-14 1990-01-30 Boehringer Mannheim Corporation Self centering femoral drill jig
US5624444A (en) * 1995-02-10 1997-04-29 Wixon; Richard Femoral resection instrumentation including three-dimensional jig and method of use
US20050113841A1 (en) * 2003-11-20 2005-05-26 Wright Medical Technology, Inc. Guide clamp for guiding placement of a guide wire in a femur
EP1588669A1 (fr) * 2004-04-20 2005-10-26 Finsbury (Development) Limited Guide d'alignement
EP1813215A1 (fr) * 2006-01-30 2007-08-01 Finsbury (Development) Limited Outil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896663A (en) * 1988-10-14 1990-01-30 Boehringer Mannheim Corporation Self centering femoral drill jig
US5624444A (en) * 1995-02-10 1997-04-29 Wixon; Richard Femoral resection instrumentation including three-dimensional jig and method of use
US20050113841A1 (en) * 2003-11-20 2005-05-26 Wright Medical Technology, Inc. Guide clamp for guiding placement of a guide wire in a femur
EP1588669A1 (fr) * 2004-04-20 2005-10-26 Finsbury (Development) Limited Guide d'alignement
EP1813215A1 (fr) * 2006-01-30 2007-08-01 Finsbury (Development) Limited Outil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011000036A1 (fr) * 2009-07-02 2011-01-06 Atlax Pty Ltd Atf Atlax Trust Appareil de guide pour opération de remplacement de la hanche
CN105662527A (zh) * 2016-03-16 2016-06-15 刘湘静 一种安全性高的骨科用钻骨装置
CN105662527B (zh) * 2016-03-16 2018-12-04 刘勇 一种安全性高的骨科用钻骨装置
CN110464416A (zh) * 2019-08-22 2019-11-19 李亮 一种安全性高的急诊骨科用钻骨装置
CN110464416B (zh) * 2019-08-22 2020-08-11 李亮 一种急诊骨科用钻骨装置

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