EP0748187A1 - Douille de per age pouvant etre refroidie - Google Patents

Douille de per age pouvant etre refroidie

Info

Publication number
EP0748187A1
EP0748187A1 EP95904373A EP95904373A EP0748187A1 EP 0748187 A1 EP0748187 A1 EP 0748187A1 EP 95904373 A EP95904373 A EP 95904373A EP 95904373 A EP95904373 A EP 95904373A EP 0748187 A1 EP0748187 A1 EP 0748187A1
Authority
EP
European Patent Office
Prior art keywords
drill sleeve
coolant
drill
hollow cylinder
drilling
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.)
Withdrawn
Application number
EP95904373A
Other languages
German (de)
English (en)
Inventor
Robert Frigg
Robert Schavan
Peter DÄSCHER
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.)
AO Technology AG
Original Assignee
Synthes AG Chur
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 Synthes AG Chur filed Critical Synthes AG Chur
Publication of EP0748187A1 publication Critical patent/EP0748187A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • 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

Definitions

  • the invention relates to a drill sleeve, according to the preamble of claim 1.
  • Drill sleeves are widely used in osteosynthesis, both for drilling, tapping and in some cases for inserting bone screws, Kirschner wires, Schanz screws or Steinmann nails. There are multiple reasons for that.
  • drill sleeves prevent the soft tissue from being wound up on the rotating instrument. They also prevent the rotating instrument from slipping and serve as a guide for operations such as drilling, tapping and inserting the implant.
  • plate osteosynthesis they are used to find the correct borehole in the plate hole by means of a shape that is specially adapted to the plate symmetry.
  • drill sleeves supplemented by a trocar, serve to find a constant drilling and insertion channel.
  • EP-Al 0 460 447 shows a compression drill sleeve, in particular for plate osteosynthesis.
  • a disadvantage of this and other drill sleeves according to the prior art is the considerable frictional heat that occurs when drilling and inserting the implants.
  • machining the bone by drilling or tapping a large part of the mechanical work is converted into heat.
  • the same applies to the insertion of implants since the heat is generated by the friction between the implant and the bone. This heat can lead to thermal damage to the bone or soft tissue.
  • the invention seeks to remedy this.
  • the invention has for its object to provide a drill sleeve in which the coolant can be introduced directly into the drill sleeve, so that neither the instruments nor the drilling machine have to be converted.
  • the invention solves this problem with a drill sleeve which has the features of claim 1.
  • the invention can be implemented in various ways in which the coolant is always introduced directly into the drill sleeve.
  • the advantage that can be achieved with the invention lies in the fact that in this way the coolant, which consists of physiological saline solution or ring solution, reaches the working area directly and thus leads to an immediate and effective temperature reduction.
  • FIG. 1 shows a longitudinal section through the drill sleeve according to the invention
  • FIG. 2 shows a cross section along the line II-II in FIG. 1, 3 shows a longitudinal section through a double-walled drill sleeve, - and
  • FIG. 4 represents a cross section along the line IV-IV in FIG. 3.
  • the drill sleeve shown in FIG. 1 essentially consists of a hollow cylinder 7 which has a handle 9.
  • the hollow cylinder 7 has an upper end 1 for the introduction of an instrument or implant and a lower end which can be placed on the bone and is designed as a serrated crown 2.
  • the grip 9 is designed as a coolant connection 3 and has a channel 4 running inside for this purpose. through which coolant can be introduced directly into the interior 5 of the drill sleeve.
  • the coolant connection 3 has a connecting piece 11 for a hose, so that coolant can be introduced into the drill sleeve by means of a syringe, which cools the instrument, the implant and the bone.
  • the hollow cylinder 7 has longitudinal grooves 6 in order to facilitate the circulation of the coolant in the interior 5 of the drill sleeve.
  • 3 and 4 a double-walled design of the drill sleeve is shown. It is constructed in the same way as the embodiment according to FIG. 1, except that a further hollow cylinder 8 is arranged in the hollow cylinder 7, so that a cavity 10 is formed between the two hollow cylinders 7, 8, which is connected to the channel 4 of the handle 9 and in which coolant can be introduced through the coolant connection 3.

Landscapes

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

Abstract

L'invention concerne une douille de perçage pour ostéosynthèse, servant en particulier au perçage, au taraudage et à la pose d'implants. Cette douille présente une extrémité supérieure (1) servant à introduire un instrument ou un implant, ainsi qu'une extrémité inférieure (2) pouvant être placé sur l'os. Un raccord (3) pour réfrigérant, placé au niveau de l'extrémité supérieure (1), permet d'introduire un réfrigérant dans la douille de perçage.
EP95904373A 1995-01-06 1995-01-06 Douille de per age pouvant etre refroidie Withdrawn EP0748187A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1995/000003 WO1996020650A1 (fr) 1995-01-06 1995-01-06 Douille de perçage pouvant etre refroidie

Publications (1)

Publication Number Publication Date
EP0748187A1 true EP0748187A1 (fr) 1996-12-18

Family

ID=4549961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95904373A Withdrawn EP0748187A1 (fr) 1995-01-06 1995-01-06 Douille de per age pouvant etre refroidie

Country Status (3)

Country Link
EP (1) EP0748187A1 (fr)
JP (1) JPH09510134A (fr)
WO (1) WO1996020650A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355051B (en) * 1997-10-09 2002-02-27 Nenad Sesic Strain-inducing conical screw for stimulating bone transplant growth
DE50205892D1 (de) 2002-01-09 2006-04-27 Synthes Ag Vorrichtung zum bohren oder einbringen von implantaten
US7731721B2 (en) 2003-07-16 2010-06-08 Synthes Usa, Llc Plating system with multiple function drill guide
US20050049595A1 (en) 2003-09-03 2005-03-03 Suh Sean S. Track-plate carriage system
US7909860B2 (en) 2003-09-03 2011-03-22 Synthes Usa, Llc Bone plate with captive clips
EP3112062B1 (fr) * 2015-06-30 2023-06-21 Seco Tools Ab Outil de coupe
CN209059343U (zh) * 2018-04-25 2019-07-05 重庆西山科技股份有限公司 手术用磨钻支撑组件及其磨钻
CN111015354A (zh) * 2019-11-22 2020-04-17 江苏新光华机械有限公司 一种多轴钻床的冷却装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320999A (en) * 1980-03-13 1982-03-23 Briese Leonard A Coolant guide for end mill
DE3609122C1 (de) * 1986-03-15 1987-08-13 Mecron Med Prod Gmbh Rotierendes Schneidinstrument fuer chirurgische Zwecke
CH681421A5 (fr) * 1990-06-06 1993-03-31 Synthes Ag
JPH0585535U (ja) * 1992-04-20 1993-11-19 株式会社日研工作所 工具ホルダー

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9620650A1 *

Also Published As

Publication number Publication date
JPH09510134A (ja) 1997-10-14
WO1996020650A1 (fr) 1996-07-11

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