EP0383840A1 - Befestigungsmittel, das bei der osteosynthese im knochen verankert wird - Google Patents

Befestigungsmittel, das bei der osteosynthese im knochen verankert wird

Info

Publication number
EP0383840A1
EP0383840A1 EP19890902229 EP89902229A EP0383840A1 EP 0383840 A1 EP0383840 A1 EP 0383840A1 EP 19890902229 EP19890902229 EP 19890902229 EP 89902229 A EP89902229 A EP 89902229A EP 0383840 A1 EP0383840 A1 EP 0383840A1
Authority
EP
European Patent Office
Prior art keywords
bone
fastener
bones
elasticity
modulus
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Withdrawn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
EP19890902229
Other languages
German (de)
English (en)
French (fr)
Inventor
Dietmar Dr. Med. Pennig
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
Publication of EP0383840A1 publication Critical patent/EP0383840A1/de
Withdrawn legal-status Critical Current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
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/866—Material or manufacture

Definitions

  • the invention relates to a fastener according to the preamble of the main claim.
  • the modulus of elasticity of the fastening means is fundamentally different from the modulus of elasticity of a bone, i. H. these fastening means take no account of the bone and, viewed over the longitudinal axis of the bone, the elasticity modules of a bone are also different in their areas, just as the bone elasticity is age-dependent.
  • the invention has for its object to provide a fastener in which a movement of the fastener in the bone no longer occurs after fixation.
  • the fastener z. B. for an external fixator is no longer rigid, in particular not more rigid than the bone, but that the fastener is adapted in terms of its modulus of elasticity to the modulus of elasticity of the bone, preferably also proceeding in such a way that in the case of fasteners to be used in different bone areas, the modulus of elasticity these fasteners can also be selected differently in adaptation to the bone area.
  • the fastener With the design of the fastener according to the invention it is achieved that a relative movement between the fastener and the bone edge is no longer possible, so that the dreaded knocking out the edge area of the bone due to the rigid fastener is avoided. This further ensures that the fastener is better anchored in the bone over a longer period than in the prior art. In addition, damage to the bone is avoided, which can lead to postoperative diseases in the bone.
  • fastener from a material having a correspondingly selected modulus of elasticity is no longer a problem.
  • fasteners can now be made from known materials. H. they have the same load-bearing properties, but are more elastic than steel.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (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)
EP19890902229 1988-02-20 1989-02-16 Befestigungsmittel, das bei der osteosynthese im knochen verankert wird Withdrawn EP0383840A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883805303 DE3805303C1 (enExample) 1988-02-20 1988-02-20
DE3805303 1988-02-20

Publications (1)

Publication Number Publication Date
EP0383840A1 true EP0383840A1 (de) 1990-08-29

Family

ID=6347791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890902229 Withdrawn EP0383840A1 (de) 1988-02-20 1989-02-16 Befestigungsmittel, das bei der osteosynthese im knochen verankert wird

Country Status (4)

Country Link
EP (1) EP0383840A1 (enExample)
JP (1) JPH02502977A (enExample)
DE (1) DE3805303C1 (enExample)
WO (1) WO1989007424A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997444A (en) * 1989-12-28 1991-03-05 Zimmer, Inc. Implant having varying modulus of elasticity
EP0649642B1 (de) * 1993-10-21 1998-12-09 Sulzer Orthopädie AG Bausatz für eine modulare Femurkopfprothese, insbesondere eine Reoperationsprothese, und Femurkopfprothese aus einem derartigen Bausatz
DE19635975C1 (de) * 1996-09-05 1998-07-30 Richard Dipl Ing Skiera Befestigungsmittel für Knochen und Knochenfragmente

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460657A1 (fr) * 1979-07-12 1981-01-30 Anvar Implant biodegradable utilisable comme piece de prothese osseuse
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
US4502473A (en) * 1981-08-06 1985-03-05 National Research Development Corp. Apparatus for external fixation of bone fractures
FI69402C (fi) * 1983-09-20 1986-02-10 Materials Consultants Oy Osteosyntesanordning
GB8400932D0 (en) * 1984-01-13 1984-02-15 Geistlich Soehne Ag Bone fracture fixation plates

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8907424A1 *

Also Published As

Publication number Publication date
JPH02502977A (ja) 1990-09-20
WO1989007424A1 (fr) 1989-08-24
DE3805303C1 (enExample) 1989-06-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19891020

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Effective date: 19910829