DE3122730A1 - Implant shaft - Google Patents

Implant shaft

Info

Publication number
DE3122730A1
DE3122730A1 DE19813122730 DE3122730A DE3122730A1 DE 3122730 A1 DE3122730 A1 DE 3122730A1 DE 19813122730 DE19813122730 DE 19813122730 DE 3122730 A DE3122730 A DE 3122730A DE 3122730 A1 DE3122730 A1 DE 3122730A1
Authority
DE
Germany
Prior art keywords
shaft
spokes
sack
bundle
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19813122730
Other languages
German (de)
Inventor
Karl Fritz 1000 Berlin Reich
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19813122730 priority Critical patent/DE3122730A1/en
Publication of DE3122730A1 publication Critical patent/DE3122730A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • 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
    • A61F2/3094—Designing or manufacturing processes
    • A61F2/30965—Reinforcing the prosthesis by embedding particles or fibres during moulding or dipping
    • 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
    • A61F2/3662—Femoral 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
    • A61F2/38—Joints for elbows or knees
    • 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
    • A61F2/30721—Accessories
    • A61F2/30723—Plugs or restrictors for sealing a cement-receiving space
    • 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
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/30079—Properties of materials and coating materials magnetic
    • 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
    • A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
    • A61F2002/30571—Leaf springs
    • 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
    • A61F2002/30581—Special structural features of bone or joint prostheses not otherwise provided for having a pocket filled with fluid, e.g. liquid
    • A61F2002/30588—Special structural features of bone or joint prostheses not otherwise provided for having a pocket filled with fluid, e.g. liquid filled with solid particles
    • 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
    • A61F2002/30602—Shaft made of a bundle of anchoring rods or bristles, e.g. fasciculate shaft
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/009—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof magnetic

Abstract

Published without abstract.

Description

Die Erfindung bezieht sich auf einen Schaft, der implantiert werden kann oder implantiert wird. In der Human- und Veterinärmedizin werden an den verschiedensten Stellen Prothesen ein-oder angesetzt. Die Schaftprothesen haben die verschiedensten Formen. Alle Variationen (Prothesen) versuchen einen Nachteil auszugleichen, nämlich das Lockern des Schaftes nach der Implantierung. Beim Einsetzen eines solchen Schaftes bei Knochenbrüchen soll möglichst der gesamte Markraum ausgefüllt sein, Xamzt der gebrochene Knochen zusammengehalten werden kann.The invention relates to a stem that is to be implanted can or is implanted. In human and veterinary medicine, a wide variety of Place prostheses in or attached. The stem prostheses have the most varied To shape. All variations (prostheses) try to compensate for one disadvantage, namely loosening of the stem after implantation. When inserting such a shaft In the case of bone fractures, the entire medullary canal should be filled as far as possible, Xamzt der broken bones can be held together.

Alle bisher verwendeten Konstruktionen gehen davon aus, daß der Enochen-aus einem Material besteht, der wie Eisen, Kunststoff, Kupfer usw. weitgehend homogen ist und daß dieses Material einberechenbares Verhalten in Bezug auf Dehnung, Langzeitverhalten usw. hat. Die lebende Knochenmasse ist aber vollkommen unberechenbar. Die sehr vielen Mißerfolge beim Implantieren von Prothesen beweisen, daß hier das Prinzip des Keiles, der durch Reibungskräfte gehalten wird, nicht verwendbar ist. Für die verschiedensten Anwendungen wird hier ein Schaft vorgestellt.All constructions used so far assume that the Enochen-from consists of a material that is largely homogeneous, such as iron, plastic, copper, etc. and that this material has predictable behavior in terms of elongation, long-term behavior etc. has. But the living bone mass is completely unpredictable. The very many Failures in implanting prostheses prove that the principle of the wedge, which is held by frictional forces cannot be used. For the most diverse A shaft is presented here for applications.

Der Schaft kann hier aus einem homogenen Material, einem geschlossenen Keil bestehen oder es sind mehrere Elemente, die zusammenwirkend den Schaft bilden. Der Schaft selbst ist die Endoprothese oder ein Teil der Endoprothese (Abb. 1 +.Abb. 2).The shaft can be made of a homogeneous material, a closed one There are wedge or there are several elements that cooperate to form the shaft. The stem itself is the endoprosthesis or part of the endoprosthesis (Fig. 1 +. Fig. 2).

In dem hier gezeigten Beispiel besteht der Schaft aus vielen Stäben, die hier Speichen (Sp) genannt werden. Die Speichen sind aus federnden Metallen oder aus Sondermaterialien wie Kohle, Earamik, Glas usw. Dieses Bündel wird zusammengefaßt im Zentrum, das hier Zylinder genannt wird (Z). Als Seele des Zylinders und des Speichenbündels ist ein Rohr (R) eingelassen, das starr oder beweglich ist. Als Seele können anstelle des Rohres auch eine Speiche oder mehrere Speichen ausgelassen werden. Die Seele kann in der Mitte des Querschnittes des Zylinders, am Rande des Zylinders oder an åjeder beliebigen Stelle sein, wobei der Zylinder im Querschnitt jede beliebige Form haben kann.In the example shown here, the shaft consists of many rods, which are called spokes (Sp) here. The spokes are made of resilient metals or made of special materials such as coal, earamic, glass, etc. This bundle is grouped together in the center, here called the cylinder (Z). As the soul of the cylinder and the A tube (R) is embedded in the spoke bundle, which is either rigid or movable. as Instead of the tube, one or more spokes can be omitted will. The soul can be in the middle of the cross-section of the cylinder, on the edge of the Cylinder or at any point, with the cylinder in cross-section can have any shape.

Um die Speichen kann ein Sack (Sa) gelegt werden Dieser Sack (Sa) schließt alle Speichen ein und verjüngt sich nach oben, um mit dem Zylinder (Z) zu einer Einheit zu verschnelzen In dem Sack befinden sich Brocken oder Pulverteile aus einem Material, das magnetisierblr und entmagnetisierbar ist Diese Brocken liegen im Sack und zwischen den Speichen (K).A sack (Sa) can be placed around the spokes This sack (Sa) includes all spokes and tapers upwards to match the cylinder (Z) to melt into a unit. There are chunks or pieces of powder in the sack Made of a material that can be magnetized and demagnetized. These chunks lie in the sack and between the spokes (K).

Das Rohr kann verschlossen werden durch einen Vakuumstopfen (V) In Abb 3 ist ein Einbaubeispiel gezeigt Hier sind die Schäfte Teile einer Kniegelenkprothese. Die Speichen liegen an der Knochenwa#d anS dazwischen sind Kugeln gerüttelt, die magnetisiert sind und so die Speichen verklemmen In Abb 4 ist ein weiteres Beispiel an einer Hüïtgelenkprothese aufgezeigt. er Sack hängt in Femur Die Speichen sind an der Femurinnenwand verklemmt. Zwischen Zwischen den Speichen hängen die Kugeln, die die Speichen verklemmen. Diese Kugeln sind durch ein Magnetfeld ausgerichtet worden und haften so aneinander.The tube can be closed with a vacuum plug (V) In Fig. 3 shows an installation example. Here the shafts are parts of a knee joint prosthesis. The spokes lie on the bone wall between the balls are jolted are magnetized and thus jam the spokes. In Fig 4 is another example shown on a hip joint prosthesis. he sack hangs in femur The spokes are stuck on the inner wall of the femur. The balls hang between the spokes, jamming the spokes. These balls are aligned by a magnetic field and so stick to each other.

In Abb. 5 ist ein Knochennagel gezeigt. Bei diesem Implantat können die Speichen auch wahlweise in den Sack eingelassen sein.In Fig. 5 a bone nail is shown. With this implant you can the spokes can also optionally be embedded in the sack.

Dies ist aber nur eine weitere Variante. Die Kugeln sind auch hier magnetisiert und haften aneinander.But this is just another variant. The bullets are here too magnetized and stick together.

In Abb. 6 ist ein Schaft gezeigt, der nicht aus Stäben besteht, sondern aus einer geschlossenen Nasse. Um diesen Schaft sind wieder Brocken - in diesem Fall Kugeln - gerüttelt, die durch ein einheitliches Magnetfeld ausgerichtet sind. Diese Kugeln verklemmen den Schaft mit der Innenwand des Röhremknochens.In Fig. 6 a shaft is shown, which does not consist of rods, but from a closed wet. Around this shaft there are chunks again - in this one Fall balls - jolted, which are aligned by a uniform magnetic field. These balls clamp the shaft to the inner wall of the long bone.

Sollte sich der Schaft lockern, so können diese Kugeln entmagnetisiert werden. Dadurch geben sie den Zwischenraum zwischen Schaft und Innenwand frei. Danach können sie wieder zwischen den Schaft und die Innenwand des Knochens gerüttelt werden. Die Kugeln werden danach erneut magnetisiert und backen aneinander.If the shaft loosens, these balls can be demagnetized will. As a result, they open up the space between the shaft and the inner wall. Thereafter they can be shaken back between the shaft and the inner wall of the bone. The balls are then magnetized again and bake together.

LeerseiteBlank page

Claims (1)

küche 101 I Schaft#für oder als Endoprothese, dadurch g e k e n n z e i c h n e t , daß ein Schaft aus Metall9 Keramik oder Kohle in einem Stück geformt ist oder ein Speichenbündel aus vornehmlich federnden Metallen oder Sondermaterialien wie Keramik, Glas, Koh)eusw aufgebaut ist und wo der Kopf dieses Schaftes in einem Zylinder geformt ist, wobei jeder beliebige Querschnitt dieses Schaftkopfes möglich ist und wo bei Bedarf auf diesen Schaftkopf Prothesenteile auf gesetzt oder angesetzt werden können und wo der aus einem Stück geformte Schaft oder das aus Speichen bestehende Schaftbündel mit einem Sack umgeben sein kann, in dem sich Naterialbrocken, die vornehmlich Kugelgestalt haben, befinden oder in dem sich Naterialpulver befindet oder beides und wobei dieses Material - Brocken Pulver - so gestaltet ist, daß die Nolekularteile dieses Naterials durch Magnetfelder ausgerichtet werden können und die Materialteile dieses Magnetfeld permanent behalten oder bei Einwirkung eines entsprechenden äußeren Magnetfeldes die Permanentmagnet kraft verlieren 2 Schaft nach Anspruch 1, dadurch g e k e n n z e i c h n e t daß in einer weiteren Ausführung der Schaft aus einem Speichenbündel besteht, das an seinen Enden gefaßt ist 3 Schaft nach Anspruch 1, dadurch g e k e n n z e i c h n e t daß der umgebende Sack an dem auslaufenden Ende bzw Enden in diese übergeht und einen Teil des Schaftkopfes bildet 4 Schaft nach Anspruch 1, 2, 3, dadurch g e k e n n z e i c h -n e t , daß in dem Schaft an einer beliebigen Stelle des Querschnittes ein oder mehrere durch den Schaft gehende Kanäle eingelassen oder durch Weglassen einer oder mehrerer Speichen ein Kanal oder mehrere Kanäle vorhanden sind 50 Schaft nach Anspruch 19 2, 3, 4, dadurch g e k e n n -æ e i c h n e t , daß der umgebende Sack mit Speichen jedes beliebigen Querschnittes bewehrt sein kannkitchen 101 I Socket # for or as an endoprosthesis, thus g e n n n shows that a metal shaft9 ceramic or carbon is molded in one piece or a bundle of spokes made primarily of resilient metals or special materials like ceramics, glass, Koh) e, etc. and where the head of this shaft is in one Cylinder is shaped, with any cross section of this shaft head possible is and where, if necessary, prosthetic parts are placed or attached to this shaft head and where the one-piece shaft or the one made of spokes Shaft bundle can be surrounded by a sack in which there are chunks of material that mainly have spherical shape, are located or in which material powder is located or both and where this material - chunks of powder - is designed so that the Molecular parts of this material can be aligned by magnetic fields and the parts of the material keep this magnetic field permanently or when exposed to a corresponding external magnetic field lose the permanent magnet force 2 shaft according to claim 1, characterized in that in a further embodiment the shaft consists of a bundle of spokes, which is gripped at its ends 3 shaft according to claim 1, characterized in that the surrounding sack is attached to the outgoing end or ends merges into this and forms part of the shaft head 4 shaft according to claim 1, 2, 3, characterized g e k e n n z e i c h -n e t that in the Shank at any point of the cross section one or more through the shank Passing channels let in or by leaving out one or more spokes Channel or more channels are present 50 shaft according to claim 19 2, 3, 4, characterized g e k e n n -æ e i c h n e t that the surrounding sack with spokes any Cross-section can be reinforced
DE19813122730 1981-06-04 1981-06-04 Implant shaft Withdrawn DE3122730A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813122730 DE3122730A1 (en) 1981-06-04 1981-06-04 Implant shaft

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DE19813122730 DE3122730A1 (en) 1981-06-04 1981-06-04 Implant shaft

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DE3122730A1 true DE3122730A1 (en) 1982-12-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613657A1 (en) * 1986-04-23 1987-11-05 Walter A Dr Med Laabs Endoprosthesis
DE3822854A1 (en) * 1988-07-06 1990-01-11 Roland Man Druckmasch Joint prosthesis for a hip joint
US4960426A (en) * 1987-08-26 1990-10-02 Denatal Kagaku Kabushiki Kaisha Osteofillers of hydroxy apatite
EP0480872A1 (en) * 1990-10-10 1992-04-15 SULZER Medizinaltechnik AG Femoral head prosthesis
DE19952433A1 (en) * 1999-10-30 2001-06-07 Univ Eberhard Karls Endoprosthesis
DE10158559A1 (en) * 2001-11-22 2003-06-26 Eska Implants Gmbh & Co Femoral neck endoprosthesis for an artificial hip joint
WO2008154762A1 (en) * 2007-06-18 2008-12-24 Roderic Alexander Frei Anchoring element for endoprostheses in hollow bones

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613657A1 (en) * 1986-04-23 1987-11-05 Walter A Dr Med Laabs Endoprosthesis
US4960426A (en) * 1987-08-26 1990-10-02 Denatal Kagaku Kabushiki Kaisha Osteofillers of hydroxy apatite
DE3822854A1 (en) * 1988-07-06 1990-01-11 Roland Man Druckmasch Joint prosthesis for a hip joint
EP0480872A1 (en) * 1990-10-10 1992-04-15 SULZER Medizinaltechnik AG Femoral head prosthesis
US5108450A (en) * 1990-10-10 1992-04-28 Sulzer Brothers Limited Femur head prosthesis
DE19952433A1 (en) * 1999-10-30 2001-06-07 Univ Eberhard Karls Endoprosthesis
DE19952433C2 (en) * 1999-10-30 2001-09-27 Univ Eberhard Karls Endoprosthesis
DE10158559A1 (en) * 2001-11-22 2003-06-26 Eska Implants Gmbh & Co Femoral neck endoprosthesis for an artificial hip joint
DE10158559C2 (en) * 2001-11-22 2003-10-09 Eska Implants Gmbh & Co Femoral neck endoprosthesis for an artificial hip joint
WO2008154762A1 (en) * 2007-06-18 2008-12-24 Roderic Alexander Frei Anchoring element for endoprostheses in hollow bones

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