WO2011051266A1 - Implant médical pour traiter l'arthrose dans les articulations d'un corps humain ou animal - Google Patents

Implant médical pour traiter l'arthrose dans les articulations d'un corps humain ou animal Download PDF

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Publication number
WO2011051266A1
WO2011051266A1 PCT/EP2010/066128 EP2010066128W WO2011051266A1 WO 2011051266 A1 WO2011051266 A1 WO 2011051266A1 EP 2010066128 W EP2010066128 W EP 2010066128W WO 2011051266 A1 WO2011051266 A1 WO 2011051266A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
medical implant
human
joints
animal body
Prior art date
Application number
PCT/EP2010/066128
Other languages
German (de)
English (en)
Inventor
Georg Gradl
Original Assignee
Universität Rostock
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 Universität Rostock filed Critical Universität Rostock
Publication of WO2011051266A1 publication Critical patent/WO2011051266A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—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, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7094—Solid vertebral fillers; devices for inserting such fillers
    • A61B17/7095—Solid vertebral fillers; devices for inserting such fillers the filler comprising unlinked macroscopic particles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00876—Material properties magnetic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/567—Joint mechanisms or joint supports in addition to the natural joints and outside the joint gaps

Definitions

  • the invention relates to a medical
  • Implant for the treatment of osteoarthritis in joints of the human or animal body in particular in the knee joint of a patient.
  • the progressive disappearance of hyaline articular cartilage and thus the articulation of inferior articular cartilage or articular bones is a component of
  • arthrosis in the human body. In most cases, arthrosis is asymmetric with preference for the medial or lateral compartment of a joint. This is especially evident on the knee joint. One-sided arthrosis is particularly common if there is a change in the leg axis. A varicose leg axis (O-legs) leads to an increased wear of the inner
  • the change in the leg axis is usually at the level of the tibial plateau (surface of the tibial bone in the
  • the invention is therefore based on the object to provide a medical implant for the treatment of osteoarthritis in joints of the human or animal body, in particular in the knee joint of a patient, with which such complex procedures are avoided.
  • the invention provides two usable in both opposing joint parts
  • Implants in the bones of the two opposing joint parts significantly reduces the operating effort and makes only a much easier intervention
  • the magnetic field strength of the two magnetic bodies is chosen so that it is adapted to the weight of the patient in a knee joint and contributes to a significant pressure or weight relief of the joint or the two joint partners. It will be a good one Shielding strung, inter alia, by counter-magnets, which are facing de hingenkabgewandten side, and through
  • Measures for the isolation of the magnetic body in the bones of the two partners The exact location of the magnetic body in the bone of the two joint partners is determined, for example, by means of the navigation of prostheses.
  • Magnet body formed from permanent magnets. Also, the magnetic body can particularly in vertebrae of the vertebral column from ⁇ in the joint parts and the joint partners
  • FIG. 1 shows a schematic side view of the two articulated bones of a knee joint with the implants inserted in the first embodiment, a schematic illustration of two according to FIG. 1
  • Fig. 1 associated with a knee joint
  • Fig. 1 shows the joint partners here provided at a distance over ⁇ or joint bones 1, 2, 3 of the femur (femur) and the lower leg Bone 4 (tibia) of the knee joint of a human.
  • Bone windows 7, 8 are inserted into both joint bones 1, 2 at a distance from the respectively assigned plateaus 5, 6 in a horizontal orientation, in which magnetic bodies 9, 10 are inserted.
  • the polarity of the magnetic body 9, 10 inserted in a joint formed by the two joint bones 1, 2, here knee joint, is
  • the two magnetic bodies 9, 10 repel each other.
  • the strength of the magnetic force of both magnetic body 9, 10 is chosen so that this the weight of the
  • Both magnetic bodies 9, 10 are formed from permanent or permanent magnets ⁇ . These are magnets made of one piece of magnetizable material, eg. As iron, cobalt, nickel or ferrite, which retains its static magnetic field, without - as in electromagnets - an elek- fresh current flow is needed.
  • Both magnetic bodies 9, 10 are surrounded by an insulation 11, 12, which the metallic magnetic body 9, 10 opposite to the bone material 3, 4 of the patient isolated and which is the joint-repellent side facing.
  • the magnetic body 9, 10 are circular in cross-section, wherein the insulations 11, 12 cup-shaped and with the openings against the joint space
  • Fig. 3 In the second embodiment of the medical implant shown in Fig. 3 are in the vertebral bodies 21 of the spinal column of a patient by means of a needle 22 finest magnetic body 20 injected, consisting of condensed to point clouds, miniaturized point magnets, each of which have the same name and thus repel each other.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Treatment Devices (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un implant médical pour traiter l'arthrose dans les articulations d'un corps humain ou animal, en particulier dans l'articulation du genou d'un patient. L'objectif de cette invention est d'éviter la mise en oeuvre de procédés complexes pour introduire des plaques stables dans la cavité articulaire du genou. A cet effet, deux corps magnétiques (9, 10; 20) pouvant être introduits dans les deux parties opposées (1, 2) de l'articulation sont prévus, la polarité des corps magnétiques (9, 10; 20) associés à une articulation est identique.
PCT/EP2010/066128 2009-10-27 2010-10-26 Implant médical pour traiter l'arthrose dans les articulations d'un corps humain ou animal WO2011051266A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009050851A DE102009050851A1 (de) 2009-10-27 2009-10-27 Medizinisches Implantat zur Behandlung der Arthrose in Gelenken des menschlichen oder tierischen Körpers
DE102009050851.1 2009-10-27

Publications (1)

Publication Number Publication Date
WO2011051266A1 true WO2011051266A1 (fr) 2011-05-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/066128 WO2011051266A1 (fr) 2009-10-27 2010-10-26 Implant médical pour traiter l'arthrose dans les articulations d'un corps humain ou animal

Country Status (2)

Country Link
DE (1) DE102009050851A1 (fr)
WO (1) WO2011051266A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5595563A (en) * 1995-09-05 1997-01-21 Moisdon; Roger G. F. Method and apparatus for maintaining the position of body parts
US5879386A (en) * 1994-12-13 1999-03-09 Jore; Matthew B. Magnetic prosthetic system
US6387096B1 (en) * 2000-06-13 2002-05-14 Edward R. Hyde, Jr. Magnetic array implant and method of treating adjacent bone portions
US20060085081A1 (en) * 2004-06-07 2006-04-20 Shadduck John H Implants and methods for treating bone
WO2006121652A2 (fr) * 2005-05-06 2006-11-16 Hyde Edward Jr Systeme de regulation a vecteurs magnetiques
WO2009052208A2 (fr) 2007-10-15 2009-04-23 Cragg Andrew H Prothèse de l'articulation du genou et compositions de hyaluronate et systèmes utiles pour l'ostéoarthrite

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611744C2 (de) * 1976-03-19 1982-01-28 Werner Dipl.-Ing. 8000 Muenchen Kraus Einrichtung zur Vitalerhaltung von Knochengewebe für Endoprothesen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5879386A (en) * 1994-12-13 1999-03-09 Jore; Matthew B. Magnetic prosthetic system
US5595563A (en) * 1995-09-05 1997-01-21 Moisdon; Roger G. F. Method and apparatus for maintaining the position of body parts
US6387096B1 (en) * 2000-06-13 2002-05-14 Edward R. Hyde, Jr. Magnetic array implant and method of treating adjacent bone portions
US20060085081A1 (en) * 2004-06-07 2006-04-20 Shadduck John H Implants and methods for treating bone
WO2006121652A2 (fr) * 2005-05-06 2006-11-16 Hyde Edward Jr Systeme de regulation a vecteurs magnetiques
WO2009052208A2 (fr) 2007-10-15 2009-04-23 Cragg Andrew H Prothèse de l'articulation du genou et compositions de hyaluronate et systèmes utiles pour l'ostéoarthrite

Also Published As

Publication number Publication date
DE102009050851A1 (de) 2011-04-28

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