WO1989007424A1 - Dispositif de fixation ancre dans les os lors de l'osteosynthese - Google Patents

Dispositif de fixation ancre dans les os lors de l'osteosynthese Download PDF

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Publication number
WO1989007424A1
WO1989007424A1 PCT/DE1989/000087 DE8900087W WO8907424A1 WO 1989007424 A1 WO1989007424 A1 WO 1989007424A1 DE 8900087 W DE8900087 W DE 8900087W WO 8907424 A1 WO8907424 A1 WO 8907424A1
Authority
WO
WIPO (PCT)
Prior art keywords
bone
fastener
elasticity
modulus
osteosynthetic
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/DE1989/000087
Other languages
German (de)
English (en)
French (fr)
Inventor
Dietmar 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 WO1989007424A1 publication Critical patent/WO1989007424A1/de
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
    • A61B17/56—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)
PCT/DE1989/000087 1988-02-20 1989-02-16 Dispositif de fixation ancre dans les os lors de l'osteosynthese Ceased WO1989007424A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3805303.9 1988-02-20
DE19883805303 DE3805303C1 (https=) 1988-02-20 1988-02-20

Publications (1)

Publication Number Publication Date
WO1989007424A1 true WO1989007424A1 (fr) 1989-08-24

Family

ID=6347791

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1989/000087 Ceased WO1989007424A1 (fr) 1988-02-20 1989-02-16 Dispositif de fixation ancre dans les os lors de l'osteosynthese

Country Status (4)

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

Cited By (1)

* 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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE174204T1 (de) * 1993-10-21 1998-12-15 Sulzer Orthopaedie 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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
US4356572A (en) * 1979-07-12 1982-11-02 Etablissement Public Dit: Agence Nationale De Valorisation De La Recherche (Anvar) Biodegradable implant useable as a bone prosthesis
GB2146535A (en) * 1983-09-20 1985-04-24 Materials Consultants Oy Device for immobilising bone fractures
EP0149540A2 (en) * 1984-01-13 1985-07-24 Ed. Geistlich Söhne Ag Für Chemische Industrie Improvements in or relating to bone fracture fixation plates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502473A (en) * 1981-08-06 1985-03-05 National Research Development Corp. Apparatus for external fixation of bone fractures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356572A (en) * 1979-07-12 1982-11-02 Etablissement Public Dit: Agence Nationale De Valorisation De La Recherche (Anvar) Biodegradable implant useable as a bone prosthesis
US4338926A (en) * 1980-11-21 1982-07-13 Howmedica, Inc. Bone fracture prosthesis with controlled stiffness
GB2146535A (en) * 1983-09-20 1985-04-24 Materials Consultants Oy Device for immobilising bone fractures
EP0149540A2 (en) * 1984-01-13 1985-07-24 Ed. Geistlich Söhne Ag Für Chemische Industrie Improvements in or relating to bone fracture fixation plates

Cited By (1)

* 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

Also Published As

Publication number Publication date
JPH02502977A (ja) 1990-09-20
DE3805303C1 (https=) 1989-06-01
EP0383840A1 (de) 1990-08-29

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