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DE9418861U1 - Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end - Google Patents

Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end

Info

Publication number
DE9418861U1
DE9418861U1 DE9418861U DE9418861U DE9418861U1 DE 9418861 U1 DE9418861 U1 DE 9418861U1 DE 9418861 U DE9418861 U DE 9418861U DE 9418861 U DE9418861 U DE 9418861U DE 9418861 U1 DE9418861 U1 DE 9418861U1
Authority
DE
Germany
Prior art keywords
cone
slot
collar
double
shaped recess
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.)
Expired - Lifetime
Application number
DE9418861U
Other languages
German (de)
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
Priority to DE4441870A priority Critical patent/DE4441870C1/en
Priority to DE9418861U priority patent/DE9418861U1/en
Publication of DE9418861U1 publication Critical patent/DE9418861U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4607—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4612—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of shoulders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4637—Special tools for implanting artificial joints for connecting or disconnecting two parts of a prosthesis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A61F2002/30339—Double cones, i.e. connecting element having two conical connections, one at each of its opposite ends
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30574—Special structural features of bone or joint prostheses not otherwise provided for with an integral complete or partial collar or flange
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/365—Connections of heads to necks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3652—Connections of necks to shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/40—Joints for shoulders
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4037—Connections of heads to necks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/40—Joints for shoulders
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4044—Connections of necks to shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4627—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4637—Special tools for implanting artificial joints for connecting or disconnecting two parts of a prosthesis
    • A61F2002/4641—Special tools for implanting artificial joints for connecting or disconnecting two parts of a prosthesis for disconnecting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

Landscapes

  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Earth Drilling (AREA)
  • Automatic Assembly (AREA)
  • Prostheses (AREA)

Description

Beschreibung Seite 1 von 4 Description Page 1 of 4

Die Erfindung betrifft eine Ausziehvorrichtung zum Entfernen von Doppelkonus-Adapter oder Steckkugelkopf bei Schaftendoprothesen mit Innen- oder Außenkonus am proximalen Ende.The invention relates to an extraction device for removing double-cone adapters or plug-in ball heads in shaft endoprostheses with an inner or outer cone at the proximal end.

Bekannte Vorrichtungen, in Gestalt eines Trennhebels oder Meißels mit gabelförmiger Keilspitze haben den Nachteil, daß die aufzubringenden Hebel- oder Schlagkräfte als Querkräfte und Biegemomente auf Knochen und Prothese einwirken. Beschädigung von Knochen, Prothese, Adapter und Kugelkopf müssen oftmals in Kauf genommen werden. Darüberhinaus ist eine Verletzung des umliegenden Gewebes durch Abgleiten oder Bruch der empfindlichen Keilspitzen nicht auszuschließen.Known devices in the form of a separating lever or chisel with a forked wedge tip have the disadvantage that the leverage or impact forces that have to be applied act as transverse forces and bending moments on the bone and prosthesis. Damage to the bone, prosthesis, adapter and ball head must often be accepted. In addition, injury to the surrounding tissue due to slipping or breaking of the sensitive wedge tips cannot be ruled out.

Die Aufgabe der Erfindung besteht darin, die Ausziehvorrichtung der im Oberbegriff des Anspruches 1 angegebenen Art insoweit zu verbessern, daß ein Entfernen von Adapter bzw. Kugelkopf querkraft- und biegemomentfrei, ohne den Sitz der Prothese zu beeinträchtigen, erfolgen kann.The object of the invention is to improve the extraction device of the type specified in the preamble of claim 1 to the extent that the adapter or ball head can be removed without transverse forces and bending moments, without affecting the fit of the prosthesis.

Darüber hinaus soll sie kompakt ausgebildet und einfach im Aufbau sein, so daß eine verletzungsfreie sichere Handhabung auch bei beengten Platzverhältnissen gewährleistet ist.In addition, it should be compact and simple in design so that safe handling without injury is guaranteed even in confined spaces.

Zur Lösung dieser Aufgabe sind bei der Erfindung die im kennzeichnenden Teil des Anspruches 1 angegebenen Merkmale vorgesehen, wobei noch in den dem Anspruch 1 folgenden Ansprüchen für die Aufgabenlösung vorteilhafte und förderliche Weiterbildungen beansprucht sind.To solve this problem, the invention provides the features specified in the characterizing part of claim 1, with further developments that are advantageous and beneficial to solving the problem being claimed in the claims following claim 1.

Die Ausziehvorrichtung besteht also aus einem Spannring mit einer schlitzförmigen Aussparung und zwei quer zur Aussparung gegenüberliegend angeordneten Spannschrauben, sowie einem Druckring mit ebenfalls schlitzförmiger Aussparung und einem Führungsbund zum Einlegen des vorgenannten Spannringes. Die schlitzförmige Aussparung des Spannringes besteht im Querschnitt aus einer trichterartigen Erweiterung sowie einem umlaufenden Steg, dessen lichte Weite um ein Spiel größer als der größte Durchmesser des Adapter- bzw. Prothesenkonus ist und dessen Dicke um ein Spiel kleiner ist als die Breite des Spaltes zwischen dem Kragenende der Prothese und dem Bund des Doppelkonus-Adapters bzw. des Steckkugelkopfes. Die trichterartige Erweiterung ermöglicht auch bei Kurzhals-Steckkugelköpfen ein kollisionsfreies Aufstecken der Vorrichtung. Die schlitzförmige Aussparung des Druckringes ist um ein Spiel gößer als der größte Durchmesser des Kragenendes der Prothese und der Innenurchmesser des Führungsbundes ist um ein Spiel größer als der Außendurchmesser des Spannringes.The extraction device consists of a clamping ring with a slot-shaped recess and two clamping screws arranged opposite one another across the recess, as well as a pressure ring with a slot-shaped recess and a guide collar for inserting the aforementioned clamping ring. The slot-shaped recess of the clamping ring consists in cross-section of a funnel-like extension and a circumferential web, the clear width of which is larger by a certain amount than the largest diameter of the adapter or prosthesis cone and the thickness of which is smaller by a certain amount than the width of the gap between the collar end of the prosthesis and the collar of the double cone adapter or the plug-in ball head. The funnel-like extension enables the device to be plugged in without collision, even with short-neck plug-in ball heads. The slot-shaped recess of the pressure ring is one clearance larger than the largest diameter of the collar end of the prosthesis and the inner diameter of the guide collar is one clearance larger than the outer diameter of the clamping ring.

Zum Ausziehen des Doppelkonus-Adapters wird der Spannring in den Führungsbund des Druckringes so eingelegt, daß die schlitzförmigen Aussparungen beider Teile deckungsgleich ubereinanderliegen. Anschließend werden Druck- und Spannring gleichzeitig auf das Kragenende bzw. den Spalt zwischen Kragenende und Adapterbund gesteckt, und der Spannring um ca. 180° gegenüber dem Druckring radial gedreht. Die dadurch erreichte Verriegelung beider Teile mit dem Doppelkonus-Adapter gestattet ein sicheres und problemloses Durchführen des Ausziehvorganges. Durch das wechselseitige gleichmäßige Anziehen der Spannschrauben wird der Druckring gegen den Kragen der Prothese und der umlaufende Steg des Spannringes gegen den Bund des Adapters gepreßt und somit ein querkraft-, stoß- und biegemomentfreies Ausziehen des Adapters erreicht. To remove the double cone adapter, the clamping ring is inserted into the guide collar of the pressure ring so that the slot-shaped recesses of both parts are aligned. The pressure ring and clamping ring are then placed simultaneously on the collar end or the gap between the collar end and the adapter collar, and the clamping ring is rotated radially by approx. 180° relative to the pressure ring. The locking of both parts with the double cone adapter thus achieved allows the removal process to be carried out safely and without problems. By tightening the clamping screws evenly in both directions, the pressure ring is pressed against the collar of the prosthesis and the circumferential web of the clamping ring is pressed against the collar of the adapter, thus ensuring that the adapter can be removed without any transverse forces, impacts or bending moments.

Das Aus- bzw. Abziehen eines Steckkugelkopfes erfolgt sinngemäß der oben beschriebenen Vorgehensweise. Beschädigungen von Knochen, Prothese, Adapter oder Steckkugelkopf sind hierbei ebenfalls nahezu ausgeschlossen.The removal or removal of a plug-in ball head is carried out in the same way as described above. Damage to the bone, prosthesis, adapter or plug-in ball head is also almost impossible.

Die kompakte Bauweise und sichere Fixierung der Vorrichtung erlaubt auch im engen Wundbereich eine problemlose Handhabung und gute Zugänglichkeit.The compact design and secure fixation of the device allows easy handling and good accessibility even in narrow wound areas.

Die erfindungsgemäße Vorrichtung ist auf Grund ihrer einfachen Teilestruktur kostengünstig herstellbar.The device according to the invention can be manufactured cost-effectively due to its simple part structure.

Die Erfindung wird im folgenden anhand von Zeichnungen erläutert, die vorteilhafte Ausfuhrungsbeispiele darstellen. Darin zeigen:The invention is explained below with reference to drawings which show advantageous embodiments. Therein show:

Fig.l die Vorderansicht des Spannringes mit Spannschrauben, in verkleinerter Darstellung, Fig.l the front view of the clamping ring with clamping screws, in a reduced view,

Fig.2 die Vorderansicht des Druckringes in verkleinerter Darstellung, Fig. 2 the front view of the pressure ring in a reduced representation,

Fig.3 die Vorderansicht der kompl. Vorrichtung mit deckungsgleichen Aussparungen, Fig. 3 the front view of the complete device with congruent recesses,

Fig.4 ein um 90° nach oben geklappter Schnitt der Anordnung in Fig.3, Fig. 4 a section of the arrangement in Fig.3 folded upwards by 90°,

Fig.5 die Vorderansicht der kompl. Vorrichtung, verriegelt durch drehen des Spannringes um 180°, Fig. 5 the front view of the complete device, locked by turning the clamping ring by 180°,

Fig.6 die Seitenansicht der kompl. Vorrichtung im Halbschnitt mit Prothese und Doppelkonus-Adapter, Fig. 6 the side view of the complete device in half section with prosthesis and double cone adapter,

Fig.7 einen um 90° nach unten geklappten Schnitt der Anordnung in Fig.6, Fig. 7 is a section of the arrangement in Fig.6 folded down by 90°,

Fig.8 einen um 90° nach unten geklappten Schnitt der Anordnung in Fig.6, jedoch mit Festkonusprothese und Kurzhalssteckkugelkopf. Fig. 8 shows a section of the arrangement in Fig. 6 folded down by 90°, but with fixed cone prosthesis and short-neck ball head.

Fig.l und Fig.2 zeigen die Einzelteile der Ausschlagvorrichtung, wobei in Pig.l der Spannring 1 mit der schlitzförmigen Aussparung 2, dem umlaufenden Steg 3, der trichterartigen Erweiterung 4 und den Spannschrauben 5 dargestellt ist und Fig.2 den Druckring 6 mit der schlitzförmigen Aussparung 7 und den Führungsbund 8 zeigt. Fig.l and Fig.2 show the individual parts of the knock-out device, whereby in Fig.l the clamping ring 1 with the slot-shaped recess 2, the circumferential web 3, the funnel-like extension 4 and the clamping screws 5 is shown and Fig. 2 shows the pressure ring 6 with the slot-shaped recess 7 and the guide collar 8.

Fig.3 und Fig.4 zeigen die kompl. Ausziehvorrichtung mit dem in den Führungsbund 8 des Druckringes 6 eingelegten Spannring 1, sowie die deckungsgleich übereinanderliegenden schlitzförmigen Aussparungen 2 und 7. Fig. 3 and Fig. 4 show the complete extraction device with the clamping ring 1 inserted into the guide collar 8 of the pressure ring 6, as well as the slot-shaped recesses 2 and 7 lying congruently one above the other.

In Fig.5, Fig.6 und Fig.7 ist die auf das Kragenende 9 der Prothese 10 und dem Spalt 11 des Doppelkonus-Adapters 12 gesteckte Ausziehvorrichtung dargestellt, wobei durch das Verdrehen des Spannringes 1 um 180° die Ausziehvorrichtung sicher mit dem Doppelkonus-Adapter 12 verriegelt ist. Durch das abwechselnde gleichmäßige Anziehen der Spannschrauben 5 wird der Druckring &dgr; gegen den Kragen 13 der Prothese 10 und der umlaufende Steg 3 des Spannringes 1 gegen den Bund 14 des Doppelkonus-Adapters 12 gepreßt und eine querkraftfreie, knochen- und gewebeschonende Entfernung des Doppelkonus-Adapters 12 ermöglicht. Fig. 8 zeigt die Festkonusprothese 15 mit dem Außenkonus 16 und dem darauf gesteckten Kurzhalskugelkopf 17 sowie die aufgesteckte und verriegelte Ausziehvorrichtung. Analog der vorbeschriebenen Weise wird auch hier der Druckring 6 gegen den Kragen 13 der Festkonusprothese 15 und der umlaufende Steg 3 des Spannringes 1 gegen den Bund 18 des Kurzhalskugelkopfes 17 gepreßt, und der Kurzhalskugelkopf 17 sicher und problemlos entfernt. Fig. 5, Fig. 6 and Fig. 7 show the extraction device placed on the collar end 9 of the prosthesis 10 and the gap 11 of the double-cone adapter 12, whereby the extraction device is securely locked to the double-cone adapter 12 by turning the clamping ring 1 by 180°. By alternately and evenly tightening the clamping screws 5, the pressure ring δ is pressed against the collar 13 of the prosthesis 10 and the circumferential web 3 of the clamping ring 1 is pressed against the collar 14 of the double-cone adapter 12, enabling the double-cone adapter 12 to be removed without transverse force and without damaging the bone and tissue. Fig. 8 shows the fixed-cone prosthesis 15 with the outer cone 16 and the short-neck ball head 17 placed on it, as well as the attached and locked extraction device. Analogous to the manner described above, the pressure ring 6 is pressed against the collar 13 of the fixed cone prosthesis 15 and the circumferential web 3 of the tension ring 1 is pressed against the collar 18 of the short-neck ball head 17, and the short-neck ball head 17 is removed safely and without problems.

Claims (5)

SchutzansprüchaSeite 4 von 4Protection claimsPage 4 of 4 1. Ausziehvorrichtung zum Entfernen von Doppelkonus-Ädapter oder Steckkugelkopf bei Schaftendoprothesen mit Innenoder Außenkonus am proximalen Ende, bestehend aus einem Spannring mit schlitzförmiger Aussparung und zwei Spannschrauben, sowie einem Druckring mit ebenfalls schlitzförmiger Aussparung, dadurch gekennzeichnet, daß der Spannring 1 mit der schlitzförmigen Aussparung 2 und den Spannschrauben 5 so in den Führungsbund 8 des Druckringes 6 eingelegt ist, daß die schlitzförmigen Aussparungen 2 und 7 deckungsgleich übereinander liegen und somit die Vorrichtung auf das Kragenende 9 und den Spalt 11 steckbar ist.1. Extraction device for removing double-cone adapters or plug-in ball heads in shaft endoprostheses with an inner or outer cone at the proximal end, consisting of a clamping ring with a slot-shaped recess and two clamping screws, as well as a pressure ring with a slot-shaped recess, characterized in that the clamping ring 1 with the slot-shaped recess 2 and the clamping screws 5 is inserted into the guide collar 8 of the pressure ring 6 in such a way that the slot-shaped recesses 2 and 7 lie congruently one above the other and thus the device can be plugged onto the collar end 9 and the gap 11. 2. Ausziehvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Drehen des Spannringes 1 um 180° die aufgesteckte Vorrichtung mit dem Doppelkonus-Adapter 12 bzw. dem Prothesenkonus 16 verriegelt.2. Extraction device according to claim 1, characterized in that rotating the clamping ring 1 by 180° locks the attached device with the double cone adapter 12 or the prosthesis cone 16. 3. Ausziehvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die schlitzförmige Aussparung 2 im Querschnitt aus einer trichterartigen Erweiterung 4 zur Aufnahme der Kurzhalssteckkugel 17 sowie dem umlaufenden Steg 3 besteht, dessen lichte Weite um ein Spiel größer als der größte Durchmesser des Doppelkonus-Adapters 12 bzw. des Prothesenkonus 16 ist, und dessen Dicke um ein Spiel kleiner ist als die Breite des Spaltes 11.3. Extractor according to claim 1, characterized in that the slot-shaped recess 2 in cross section consists of a funnel-like extension 4 for receiving the short-neck plug-in ball 17 and the circumferential web 3, the clear width of which is larger by a clearance than the largest diameter of the double-cone adapter 12 or the prosthesis cone 16, and the thickness of which is smaller by a clearance than the width of the gap 11. 4. Ausziehvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die schlitzförmige Aussparung 7 des Druckringes 6 um ein Spiel größer als der Durchmesser des Kragenendes 9 ist und der Innendurchmesser des Führungsbundes 8 um ein Spiel größer ist als der Außendurchmesser des Spannringes 1.4. Extractor device according to claim 1, characterized in that the slot-shaped recess 7 of the pressure ring 6 is larger by a clearance than the diameter of the collar end 9 and the inner diameter of the guide collar 8 is larger by a clearance than the outer diameter of the clamping ring 1. 5. Ausziehvorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß das Anziehen der Spannschrauben 5 den Druckring 6 gegen den Kragen 13, und den umlaufenden Steg gegen den Bund 14 bzw. 18 preßt.5. Extractor device according to one of claims 1-4, characterized in that tightening the clamping screws 5 presses the pressure ring 6 against the collar 13 and the circumferential web against the collar 14 or 18. Hierzu 1 Seite Zeichnungen1 page of drawings
DE9418861U 1994-11-24 1994-11-24 Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end Expired - Lifetime DE9418861U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4441870A DE4441870C1 (en) 1994-11-24 1994-11-24 Extractor for hip joints
DE9418861U DE9418861U1 (en) 1994-11-24 1994-11-24 Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4441870A DE4441870C1 (en) 1994-11-24 1994-11-24 Extractor for hip joints
DE9418861U DE9418861U1 (en) 1994-11-24 1994-11-24 Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end

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DE9418861U1 true DE9418861U1 (en) 1995-01-26

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DE9418861U Expired - Lifetime DE9418861U1 (en) 1994-11-24 1994-11-24 Pull-out device for removing the double-cone adapter or plug-in ball head for shaft endoprostheses with an inner or outer cone at the proximal end
DE4441870A Expired - Fee Related DE4441870C1 (en) 1994-11-24 1994-11-24 Extractor for hip joints

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6013082A (en) * 1996-06-07 2000-01-11 Johnson & Johnson Professional, Inc. Extraction device
EP1106148A1 (en) * 1999-11-25 2001-06-13 Steinicke Maschinen- und Werkzeugbau AG Extracting instrument for disconnecting individual parts of an endoprosthesis
EP1169981B1 (en) * 2000-07-07 2004-09-15 Centerpulse Orthopedics Ltd. Ball head pulling device for a shaft prosthesis
US8435244B2 (en) 2007-05-02 2013-05-07 Zimmer, Inc. Orthopedic tool for altering the connection between orthopedic components
US11020242B2 (en) * 2015-07-27 2021-06-01 Hip Innovation Technology, Llc. Tool and status for separating a femoral cup from an acetabular ball in an implanted hip prosthesis
JP7427661B2 (en) 2018-10-04 2024-02-05 デピュイ・アイルランド・アンリミテッド・カンパニー Arthroplasty extraction system

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Publication number Priority date Publication date Assignee Title
DE7601139U1 (en) * 1976-05-26 Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen Surgical instrument for inserting and withdrawing a joint endoprosthesis
GB1402557A (en) * 1971-08-09 1975-08-13 Thackray C F Ltd Femoral prostheses
US4222382A (en) * 1979-01-26 1980-09-16 Massachusetts Institute Of Technology Femoral component hip joint prosthesis extractor
DE3433859A1 (en) * 1984-09-14 1986-03-27 Waldemar Link (Gmbh & Co), 2000 Hamburg JOINT DOPROTHESIS AND INSTRUMENT TO OR RECHARGE THE SAME
US4686971A (en) * 1984-11-19 1987-08-18 Harris William H Method and apparatus for extraction of prostheses
FR2656519B1 (en) * 1989-12-29 1993-04-09 Cornic Michel EXTRACTOR IMPACTOR FOR FEMALE PROSTHESES.
CH685471A5 (en) * 1991-06-26 1995-07-31 Sulzer Ag Rash instrument for Hüftgelenkprothesenschäfte.
DE4220970A1 (en) * 1991-12-30 1993-07-01 Artos Med Produkte ROTATION INSTRUMENT
DE9212846U1 (en) * 1992-09-24 1992-11-19 S + G Implants GmbH, 2400 Lübeck Extraction device for explantation of hip stem endoprostheses
DE4310834C1 (en) * 1993-04-02 1994-10-13 Wolfgang Zach Extraction device for removing and driving in shaft endoprostheses with a smooth conical or cylindrical proximal end

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