DE2305441A1 - TENSIONER CONNECTION FOR IMPLANTS - Google Patents

TENSIONER CONNECTION FOR IMPLANTS

Info

Publication number
DE2305441A1
DE2305441A1 DE2305441A DE2305441A DE2305441A1 DE 2305441 A1 DE2305441 A1 DE 2305441A1 DE 2305441 A DE2305441 A DE 2305441A DE 2305441 A DE2305441 A DE 2305441A DE 2305441 A1 DE2305441 A1 DE 2305441A1
Authority
DE
Germany
Prior art keywords
implant
pile
balls
hollow
shaft
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.)
Pending
Application number
DE2305441A
Other languages
German (de)
Inventor
Helmut Locke
Anton Dr Ing Zeibig
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.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
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 Ceramtec GmbH filed Critical Ceramtec GmbH
Priority to DE2305441A priority Critical patent/DE2305441A1/en
Publication of DE2305441A1 publication Critical patent/DE2305441A1/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4601Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3662Femoral shafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2/46Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30721Accessories
    • A61F2/30723Plugs or restrictors for sealing a cement-receiving space
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    • A61F2/00Filters 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
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2/36Femoral heads ; Femoral endoprostheses
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    • A61F2/3672Intermediate parts of shafts
    • AHUMAN NECESSITIES
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    • A61F2/02Prostheses implantable into the body
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • AHUMAN NECESSITIES
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30224Three-dimensional shapes cylindrical
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30242Three-dimensional shapes spherical
    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30317The prosthesis having different structural features at different locations within the same prosthesis
    • A61F2002/30327The prosthesis having different structural features at different locations within the same prosthesis differing in diameter
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30492Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking pin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2002/30476Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30507Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30546Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting elasticity, flexibility, spring rate or mechanical tension
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30579Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
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    • A61F2/36Femoral heads ; Femoral endoprostheses
    • A61F2/3662Femoral shafts
    • A61F2002/3678Geometrical features
    • A61F2002/3694Geometrical features with longitudinal bores
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2220/00Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0069Three-dimensional shapes cylindrical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0071Three-dimensional shapes spherical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0004Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
    • A61F2250/0012Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable for adjusting elasticity, flexibility, spring rate or mechanical tension
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0039Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00185Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00203Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/0097Coating or prosthesis-covering structure made of pharmaceutical products, e.g. antibiotics

Landscapes

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

Description

Spannstückverbindungen für Implantate Die Erfindung betrifft eine Vorrichtung zum dauerhaften, zementfreien Befestigen von Implantaten im Inneren von Röhrenknochen. Clamping piece connections for implants The invention relates to a Device for permanent, cement-free fastening of implants inside of long bones.

Knochenendoprotbesen werden immer häufiger in der Humanmedizin eingesetzt. Verschiedene Substitutionsprodukte sind bereits für Implantate vorhanden. Als Werkstoffe kommen Metallegierungen, Kunststoffe und technische Keramik-infrage, aber jedes dieser Materialien besitzt gewisse Nachteile, wenn man es als Implantat einsetzt. Der Kunststoff z. B. verträg sich oft sehr schlecht mit dem Organismus, so daß er schon nach kürzester Zeit wieder aus dem Körper entfernt werden muß. Außerdem besitzt er keine besonders hohe chemische Widerstandsfähigkeit und ist auch nicht genügend volumenbaständig. Bei den Metallverbindungen gibt es bereits Werkstoffe, z. B. Kobalt-Chromstahl, die weit besser mit dem lebenden Organismus verfraglich sind als Kunststoffe, aber zum größten Teil müssen solche Implantate aus Metallen bzw. Metallegierungen mit Zementen oder Klebern in oder an den Knochen gekittet werden. Die keramischen Werkstoffe sind zwar inert und korrosionsbeständig gegenüber dem Organismus, aber man befürchtet, daß ein solches Material, wie es in der deutschen Offenlegungsschrift 2 134 316 beschrieben wird, aufgrund seines spröden Charakters, z. B. beim Einschlagen eines Aluminiumoxid-Schaftes, beschädigt oder sogar zerstört wird. Außerdem benötigt man ebenfalls Kitte, Zemente oder Kleber, um gewisse Dauerverbindungen herzustellen.Bone endoprotectomy brooms are being used more and more frequently in human medicine. Various substitution products are already available for implants. As materials Metal alloys, plastics and technical ceramics are possible, but every one these materials have certain disadvantages when used as an implant. The plastic z. B. often gets along very badly with the organism, so that he must be removed from the body again after a very short time. Also owns it does not have a particularly high chemical resistance and is also not sufficient volume-constrained. In the case of metal connections, there are already materials such. B. cobalt chrome steel, which are far better interrogative with the living organism than plastics, however For the most part, such implants made of metals or metal alloys have to be included Cements or adhesives can be cemented into or onto the bones. The ceramic materials are inert and corrosion-resistant to the organism, but it is feared that that such a material as it is in the German Offenlegungsschrift 2 134 316 is described due to its brittle character, e.g. B. when hitting a Aluminum oxide shaft, is damaged or even destroyed. You also need also putty, cement or glue to make certain permanent connections.

Daher ist es die Aufgabe der vorliegenden Erf ndung, bei Endoprothesen die Verwendung von Klebern und Zementen zum Befestigen der Implantat-Teile aus den in der Fachwelt bekannten Gründen zu vermeiden, und daß beim Einbau keine Gefahr einer Beschädigung des Implantat-Materials besteht.It is therefore the object of the present invention in the case of endoprostheses the use of adhesives and cements to fix the implant parts from the to avoid reasons known in the art, and that there is no danger during installation there is damage to the implant material.

Die erfindungsgemäße Spannstückverbindung für ein Implantat ist als Lösung der vorstehend genannten Aufgabe dadurch gekennzeichnet, daß in den Raum zwischen Corticalis und dem teilweise hohlen Implantatschaft ein Kugelhaufwerk eingebracht ist und dieses in etwa senkrechter Richtung zur Corticaliswand anpressend wirkt, indem ein in einem Längsschlitz beweglicher Querstift im hohlen Teil des Schaftes auf das Haufwerk drückt.The clamping piece connection according to the invention for an implant is as Solution to the above-mentioned object, characterized in that in the room Between the corticalis and the partially hollow implant shaft, a ball pile was introduced and this has a pressing effect in an approximately perpendicular direction to the cortical wall, by a transverse pin movable in a longitudinal slot in the hollow part of the shaft presses on the pile.

Auf den Zeichnungen ist dieser Erfindungsgedanke beispielsweise dargestellt, und zwar zeigen in Teil-L-ngsschnitten Fig. 1: ein Ausführungsbeispiel für den Fall eines Knochens mit gekrümmter Längsachse, beispielsweise eines Oberschenkelknochens.This concept of the invention is shown in the drawings, for example, namely, in partial longitudinal sections, FIG. 1 shows an exemplary embodiment for the case a bone with a curved longitudinal axis, for example a femur.

Fig. 2: einen Teil-Schnitt zu Fig. 1, und zwar um 900 gedreht. FIG. 2: a partial section to FIG. 1, rotated by 900.

Die Einzelheiten und die Merkmale der Erfindung sind aus der nachfolgenden Beschreibung zu entnehmen.The details and features of the invention are from the following To be found in the description.

Nachdem das Implantat 2 nebst Kugelhaufwerk 6, 7 und die Zylinderkörper 5 in den vorher ausgefrästen Hohlraum des Röhrenknochens ohne Anwendung von Zwang gebracht worden ist,und man mittels eines Werkzeugs, vorzugsweise eines Drehrnomentenschlüssels, die Schraube 9, vorzugsweise in Gestalt einer Inbusschraube 11, am Kopf des Implantates angezogen hat, drückt diese auf die stark abgerundeten Zylinderkörper 5 im hohlen Implantatteil, und diese wiederum übertragen den Druck auf den freibeweglichen Querstift 4, der in einen Längsschlitz 3 eingepaßt ist, sowie weiterhin auf die konische Hülse 13.After the implant 2 together with the ball pile 6, 7 and the cylinder body 5 into the previously milled hollow space of the long bone without the use of force has been brought, and using a tool, preferably a torque wrench, the screw 9, preferably in the form of an Allen screw 11, on the head of the implant dressed has, this presses on the strongly rounded cylinder body 5 in the hollow implant part, and these in turn transfer the pressure to the freely movable transverse pin 4, the is fitted into a longitudinal slot 3 and also onto the conical sleeve 13.

Der Raum zwischen dem unteren Verschlußstück 8 und der Hülse 13 ist mit Kugeln aus Keramik oder Metallen ausgefüllt. Dieses Kugelhaufwerk zeigt die wirkung einer Pseudo-Flüssigkeit, wenn die Einzelelemente gleich oder annähernd gleich im Durchmesser sind und ein Druck ausgeübt; wird. Dadurch besteht aber die Gefahr, daß die Kugeln am unteren Verschlußstück 8 bzw. an der Hülse 13 vorbeigleiten können; deshalb whlt man für die untere und obere Querschicht des Kugelhaufwerks etwas größere Kugeln 7. Der Druck in Richtung der Knochenlängsachse auf den Kugelhaufen bewirkt ein Ausweichen und Anpressen der kugeln in Richtung zur Corticaliswand 1. Damit ist ein Verkeilen des Implantats im Röhrenknochen erreicht.The space between the lower closure piece 8 and the sleeve 13 is filled with ceramic or metal balls. This pebble shows the effect of a pseudo-liquid, if the individual elements are the same or approximately are equal in diameter and a pressure is applied; will. But because of this, the Danger that the balls slide past the lower locking piece 8 or the sleeve 13 can; therefore one chooses for the lower and upper transverse layer of the pebble bed slightly larger spheres 7. The pressure in the direction of the longitudinal axis of the bones on the globular cluster causes the balls to evade and press in the direction of the cortical wall 1. This wedges the implant in the long bone.

Der obere Kugelhaufen 12 dient im allgemeinen lediglich zur Wahrung der Abstände zwischen Implantat und Corticalis. Gegebenfalls kann eine zusätzliche Sicherung am Kopf des Implantates durch ein weiteres Druckelement 10 erfolgen, indem sich nach dem gleichen Prinzip die Kugeln 12 im Knochengewebe fest verankern.The upper pebble pile 12 is generally only used for preservation the distance between the implant and the cortical bone. If necessary, an additional Secured to the head of the implant by a further pressure element 10 by The balls 12 anchor themselves firmly in the bone tissue according to the same principle.

Als Materialien für die erfindungsgemäße Vorrichtung sind keramische Werkstoffe, vorzugsweise Aluminiumoxid oder Verbundwerkstoffe vorgesehen, die entweder dicht, porös oder zumindest oberflächenporös sind.Ceramic materials are used as materials for the device according to the invention Materials, preferably alumina or composites, are provided that either are dense, porous or at least porous on the surface.

Damit nach dem ärztlichen Eingriff Entzündungen weitgehend vermieden werden, ist an geeigneter Stelle ein Pharmaka-Depot angebracht.This largely avoids inflammation after the medical intervention a pharmaceutical depot is attached at a suitable location.

Durch die erfindungsgemäßen konstruktiven Maßnahmen hat die Vorrichtung Vorteile gegenüber den bereits bekannten Einbaumöglichkeiten von Implantaten in Röhrenknochen, insbesondere ein Vermeiden schlagartiger Beanspruchungen wehren des Operierens. Ferner, daß eine leichte und sichere Verankerung des Implantats durch ein Kugelhaufwerk im Inneren des Röhrenknochens erfolgt,wobei Zemente, Kitte oder dgl. nicht benötigt sind. Außerdem hat das Kugelhaufwerk noch den Vorteil, daß neu gebildetes Organgewebe leicht in die Hohlraume des Laufwerkes einwachsen kann. Diesen Vorgang kann man noch unterstützen, indem die Kugeln ebenfalls eine-poröse Oberflache aufw#eisen.Due to the structural measures according to the invention, the device Advantages over the already known installation options for implants in Long bones, especially avoiding sudden stresses, defend the Operating. Furthermore, that the implant can be anchored easily and securely A pile of pebbles takes place inside the long bone, using cement, putty or Like. Are not required. In addition, the ball pile has the advantage that it is new Organ tissue formed can easily grow into the cavities of the drive. This one The process can still be supported by the balls also having a porous surface exhibit.

Patent- bzw. Schutzansprüche Patent or protection claims

Claims (8)

Patent- bzw. Schutzansprüche 1. Vorrichtung zum dauerhaften, zementfreien Befestigen von Implantaten im Inneren von Röhrenknochen, dadurch gekennzeichnet, daß in den Raum zwischen Corticalis (1) und dem teilweise hohlen Tmplantatschaft (2) ein Kugelhaufwerk (6;7) eingebracht ist und dieses in etwa senkrechter Richtung zur Corticaliswand anpressend wirkt, indem ein in einem Langsschlltz (3) beweglicher Querstift (4) im hohlen Teil des Schaftes auf das Haufwerk druckt. Claims 1. Device for permanent, cementless Fastening implants inside long bones, characterized in that that in the space between the corticalis (1) and the partially hollow implant shaft (2) a ball pile (6; 7) is introduced and this in an approximately vertical direction presses against the wall of the cortex by a moving in a long sleeve (3) Cross pin (4) in the hollow part of the shaft prints on the pile. 2. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Druckübertragung auf den Querstift (4) durch eine Schraube (9), vorzugsweise einer Inbusschraube (11), mittels der stark abgerundeten Zylinderkörper (5) im hohlen Implantatteil erfolgt.2. Apparatus according to claim 1, characterized in that the pressure transmission on the cross pin (4) by means of a screw (9), preferably an Allen screw (11), by means of the strongly rounded cylinder body (5) in the hollow implant part he follows. 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kugeln des Kugelhaufwerkes an der Hülse (13i und am Verschlußstück (8) einen größeren Durchmesser (7) als in der Mitte (6) haben.3. Apparatus according to claim 1, characterized in that the balls of the ball pile on the sleeve (13i and on the locking piece (8)) has a larger diameter (7) than have (6) in the middle. 4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß durch ein weiteres Druckelement (10) und an den Kugeln (7 ;12) eine zusätzliche Verankerung mit dem Knochengewebe erzielbar ist.4. Apparatus according to claim 1, characterized in that by another pressure element (10) and an additional anchorage on the balls (7; 12) can be achieved with the bone tissue. 5. Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß als Werkstoff für das Implantat Keramik, vorzugsweise Aluminiumoxid, eingesetzt ist.5. Apparatus according to claim 1 to 4, characterized in that Ceramic, preferably aluminum oxide, is used as the material for the implant is. 6. Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß als Material für das Implantat ein Verbundwerkstoff, vorzugsweise ein keramischer Verbundwerkstoff, gewahrt ist.6. Apparatus according to claim 1 to 4, characterized in that A composite material, preferably a ceramic material, is used as the material for the implant Composite material, is maintained. 7. Vorrichtung nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß für das Implantat an denjenigen Stellen ein poröses Material eingesetzt ist, an denen dieses direkt mit dem Knochengewebe in Berührung kommt.7. Device according to at least one of claims 1 to 6, characterized characterized in that a porous material for the implant at those points is used, where this comes into direct contact with the bone tissue. 8. Vorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß ein Pharmaka-Depot im oder am Implantat eingesetzt ist.8. Apparatus according to claim 1 to 7, characterized in that a pharmaceutical depot is inserted in or on the implant.
DE2305441A 1973-02-03 1973-02-03 TENSIONER CONNECTION FOR IMPLANTS Pending DE2305441A1 (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398490A1 (en) * 1977-07-27 1979-02-23 Carbone Ag ANCHORING AN ENDOPROTHESIS IN OR ON A BONE
EP0061993A1 (en) * 1981-04-01 1982-10-06 Mecron Medizinische Produkte Gmbh Joint prosthesis
WO1986006954A1 (en) * 1985-05-23 1986-12-04 Labor Für Experimentelle Chirurgie Schweizerisches Self-locking stemmed component for a joint endo-prosthesis
US4630601A (en) * 1982-05-18 1986-12-23 Howmedica International, Inc. Bone nail for the treatment of fractures
FR2610823A1 (en) * 1987-02-12 1988-08-19 Cuilleron J Improved femoral rod for hip prostheses
WO1988007355A1 (en) * 1987-03-30 1988-10-06 Ab Idea Method and means for fixing a joint prosthesis
US4986834A (en) * 1988-08-31 1991-01-22 Boehringer Mannheim Corporation Load sharing femoral hip implant
FR2663836A1 (en) * 1990-04-20 1992-01-03 Perisse Jean Dental or orthopaedic multipart implant
US5697932A (en) 1994-11-09 1997-12-16 Osteonics Corp. Bone graft delivery system and method
NL1020501C2 (en) * 2002-04-29 2003-10-31 Fondel Finance B V Prosthetic fixation with biocompatible granules, mechanically compacted.
NL1032851C2 (en) * 2006-11-10 2008-05-14 Fondel Finance B V Kit and method for fixing a prosthesis or part thereof and / or filling bony defects.
WO2008154762A1 (en) * 2007-06-18 2008-12-24 Roderic Alexander Frei Anchoring element for endoprostheses in hollow bones

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398490A1 (en) * 1977-07-27 1979-02-23 Carbone Ag ANCHORING AN ENDOPROTHESIS IN OR ON A BONE
EP0061993A1 (en) * 1981-04-01 1982-10-06 Mecron Medizinische Produkte Gmbh Joint prosthesis
WO1982003323A1 (en) * 1981-04-01 1982-10-14 Kranz Curt Joint prothesis
US4630601A (en) * 1982-05-18 1986-12-23 Howmedica International, Inc. Bone nail for the treatment of fractures
US4792339A (en) * 1985-05-23 1988-12-20 Laboratorium Fur Experiementelle Chirurgie, Forschungsinstitut Self-locking stemmed component for a joint endo-prosthesis
WO1986006954A1 (en) * 1985-05-23 1986-12-04 Labor Für Experimentelle Chirurgie Schweizerisches Self-locking stemmed component for a joint endo-prosthesis
FR2610823A1 (en) * 1987-02-12 1988-08-19 Cuilleron J Improved femoral rod for hip prostheses
WO1988007355A1 (en) * 1987-03-30 1988-10-06 Ab Idea Method and means for fixing a joint prosthesis
JPH02503273A (en) * 1987-03-30 1990-10-11 エー・ビー・アイデイア Means of fixing the artificial joint trunk
US5015256A (en) * 1987-03-30 1991-05-14 Ab Idea Method and means for fixing a joint prosthesis
AU611900B2 (en) * 1987-03-30 1991-06-27 Lanka Limited Method and means for fixing a joint prosthesis
JP2561337B2 (en) 1987-03-30 1996-12-04 エー・ビー・アイデイア Means to fix the artificial joint trunk
EP0501595A1 (en) * 1987-03-30 1992-09-02 Ab Idea Method and means for fixing a joint prosthesis
US4986834A (en) * 1988-08-31 1991-01-22 Boehringer Mannheim Corporation Load sharing femoral hip implant
WO1993006787A1 (en) * 1990-04-20 1993-04-15 Jean Perisse Multi-component dental implant
US5417569A (en) * 1990-04-20 1995-05-23 Perisse; Jean Multi-element dental implant
FR2663836A1 (en) * 1990-04-20 1992-01-03 Perisse Jean Dental or orthopaedic multipart implant
US5697932A (en) 1994-11-09 1997-12-16 Osteonics Corp. Bone graft delivery system and method
US6045555A (en) 1994-11-09 2000-04-04 Osteonics Corp. Bone graft delivery system and method
US6142998A (en) 1994-11-09 2000-11-07 Howmedica Osteonics Corp. Bone graft delivery surgical instruments
US6309395B1 (en) 1994-11-09 2001-10-30 Howmedica Osteonics Corp. Bone graft delivery surgical instruments
NL1020501C2 (en) * 2002-04-29 2003-10-31 Fondel Finance B V Prosthetic fixation with biocompatible granules, mechanically compacted.
WO2003092556A1 (en) * 2002-04-29 2003-11-13 Fondel Finance B.V. Prosthesis fixation with mechanically compacted biocompatible granules
AU2003224513B2 (en) * 2002-04-29 2008-05-08 Fondel Finance B.V. Prosthesis fixation with mechanically compacted biocompatible granules
AU2003224513B9 (en) * 2002-04-29 2008-07-17 Fondel Finance B.V. Prosthesis fixation with mechanically compacted biocompatible granules
EP2226037A1 (en) * 2002-04-29 2010-09-08 Fondel Finance B.V. Prosthesis fixation with mechanically compacted biocompatible granules
US8480758B2 (en) 2002-04-29 2013-07-09 Fondel Finance, B.V. Prosthesis fixation with mechanically compacted biocompatible granules
NL1032851C2 (en) * 2006-11-10 2008-05-14 Fondel Finance B V Kit and method for fixing a prosthesis or part thereof and / or filling bony defects.
WO2008154762A1 (en) * 2007-06-18 2008-12-24 Roderic Alexander Frei Anchoring element for endoprostheses in hollow bones

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