DE2543911A1 - PROSTHETIC JOINT - Google Patents
PROSTHETIC JOINTInfo
- Publication number
- DE2543911A1 DE2543911A1 DE19752543911 DE2543911A DE2543911A1 DE 2543911 A1 DE2543911 A1 DE 2543911A1 DE 19752543911 DE19752543911 DE 19752543911 DE 2543911 A DE2543911 A DE 2543911A DE 2543911 A1 DE2543911 A1 DE 2543911A1
- Authority
- DE
- Germany
- Prior art keywords
- joint
- joint part
- stem
- sleeve
- bone
- 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- Withdrawn
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
- A61F2/38—Joints for elbows or knees
- A61F2/3836—Special connection between upper and lower leg, e.g. constrained
- A61F2/384—Special connection between upper and lower leg, e.g. constrained hinged, i.e. with transverse axle restricting the movement
-
- 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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
-
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
-
- 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
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
-
- 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
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
- A61F2002/30919—Sleeves
-
- 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 or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
Die Erfindung bezieht sich auf ein prothetisches Gelenk, bestehend aus einem ersten Gelenkteil zur Einbringung in einen Knochen und einem zweiten Gelenkteil zur Einbringung in einen anderen Knochen zur Bildung einer scharnierartigen Verbindung mit dem ersten Gelenkteil οThe invention relates to a prosthetic joint consisting of from a first joint part for insertion into a bone and a second joint part for insertion into one other bone to form a hinge-like connection with the first joint part ο
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Mittel zu schaffen, mit deren Hilfe bei einem künstlichen scharnierartigen Gelenk die dort auftretenden Torsionsbeanspruchungen vermindert werden können, die sich nachteilig auf die Festigkeit der Teile des Gelenks oder dieThe present invention has for its object to provide means with the help of an artificial hinge-like The torsional stresses occurring there can be reduced, which is detrimental to the joint Strength of the parts of the joint or the
-2--2-
$09815/0442$ 09815/0442
Festigkeit der Verbindungen zu den Knochen auswirkenοThe strength of the connections to the bones ο
Diese Aufgabe ist gemäß der Erfindung dadurch gelöst, daß der in einem der besagten Knochen befestigte Gelenkteil ein Hülsenteil aufweist, in dem ein Stiel drehbar gelagert ist, um eine relative Längsdrehung zwischen den genannten Knochen zu ermöglichen.This object is achieved according to the invention in that the joint part fastened in one of said bones is a Has sleeve part in which a stem is rotatably mounted to a relative longitudinal rotation between said bones to enable.
Auf diese Weise werden durch Einbringung einer Drehfreiheit in die Längsachse des Gelenksystems die bekannten prothetischen Gelenke wesentlich verbessert·In this way, by introducing freedom of rotation in the longitudinal axis of the joint system, the known prosthetic Joints significantly improved
Die Erfindung findet besondere Anwendung als prothetisches Kniegelenk, in welchem Falle das Gelenk einen Schienbeinteil und einen Oberschenkelteil umfaßt, von denen jeder die Form eines Hülsenteils mit drehbarem Stiel aufweisen kann·The invention has particular application as a prosthetic knee joint, in which case the joint is a tibial part and a thigh portion, each of which may be in the form of a sleeve portion with a rotatable handle.
In einer Ausführungsform der vorliegenden Erfindung weist das prothetische Kniegelenk einen Schienbeinteil auf, der einen Stiel aufweist zur drehbaren Anbringung innerhalb der Hülse, die in das Schienbein eingebracht worden ist und eine sich quer zum Stiel erstreckende Spindel, die die Anbringung innerhalb irgendeines Mechanismus, der die Befestigung am Oberschenkelknochen erlaubt und für eine Bewegung sorgt, die dem Beugen und Strecken des Knies ähnelt·In one embodiment of the present invention, the prosthetic knee joint has a tibial portion having a stem for rotatable attachment within the Sleeve that has been inserted into the tibia and a spindle extending transversely to the stem that makes the attachment within any mechanism that allows attachment to the femur and provides movement that is similar to bending and stretching the knee
Ein Ausführungsbeispiel der Erfindung ist unter Bezugnahme auf die beigefügte Zeichnung beschrieben. Im einzelnen zeigen:An embodiment of the invention is described with reference to the accompanying drawing. Show in detail:
Fig. 1 einen Querschnitt durch einen Teil eines menschlichen Beins, das ein künstliches Gelenk gemäß der Erfindung in entsprechender Lage aufweist;Fig. 1 is a cross section through part of a human leg having an artificial joint according to the Invention has in a corresponding position;
Fig. 2 einen Schnitt nach der Linie X-Y von Figo 1.Fig. 2 shows a section along the line XY of FIG o 1.
Gemäß den Zeichnungen besteht die Prothese aus einem Schienbeinteil, das einen Stiel 1 aus Metall umfaßt, und derAccording to the drawings, the prosthesis consists of a tibia part, which comprises a stem 1 made of metal, and the
609815/04A2609815 / 04A2
Stiel besteht aus einem unteren Stück 2, das sich innerhalb des Schienbeins 3 befindet, und einem oberen Ansatz 4, dessen Achse einen stumpfen Winkel Q mit der Achse des unteren Stückes 2 bildeteThe stem consists of a lower piece 2, which is located inside the tibia 3, and an upper extension 4, the axis of which forms an obtuse angle Q with the axis of the lower piece 2
Das Oberschenkelstück der Prothese ist in den Zeichnungen nicht dargestellt und kann beispielsweise demjenigen ähneln, das in der britischen Patentschrift Nr. 1,349,587 beschrieben istο Dort ist eine drehbar gelagerte Spindel vorgesehen, die sich quer zum Stiel erstreckt, zur Anordnung bzw· Unterbringung innerhalb der Oberschenkelknochen. An den gegenüberliegenden Enden der Spindel sind zwei für die Verankerung in den Oberschenkelknochen bestimmte Lagerbuchsen vorgesehene Das Oberschenkelstück der Prothese kann sowohl in der Konstruktion bzwo im Entwurf als auch im Prinzip vollständig verschieden von dem in der obenerwähnten Patentschrift beschriebenen Stück sein.The thigh piece of the prosthesis is in the drawings not shown and may for example be similar to that described in British Patent No. 1,349,587 istο A rotatably mounted spindle is provided there, which extends transversely to the handle, for arrangement or accommodation within the femur. At the opposite ends of the spindle are two for anchoring The thigh section of the prosthesis can be used in both the construction or the design as well as in principle completely different from that in the above-mentioned patent described piece.
Das untere Stück 2 von dem Stiel 1 ist zylindrisch in der Form und ist frei drehbar im oberen Hülsenstück 5 des aus Kunststoff bestehenden Gelenkteils 6 untergebracht. Der Stiel 1 umfaßt ferner eine ringförmige Schulter 7, die mit der oberen ringförmigen Fläche von Hülsenstück 5 zusammenwirkt .The lower piece 2 of the stem 1 is cylindrical in shape and is freely rotatable in the upper sleeve piece 5 of the from Plastic existing joint part 6 housed. The stem 1 further comprises an annular shoulder 7, which with the upper annular surface of the sleeve piece 5 cooperates.
Das Gelenkteil 6 umfaßt ein eingebautes verjüngtes Zapfenstück 8, das sich, wenn sich das Gelenkteil im Schienbein in der entsprechenden Stellung befindet, darin nach unten erstreckt, und zwar entlang einer Verlängerung der Längsachse der Hülse. Das Zapfenstück 8 und das obere Hülsenstück 5 des Gelenkteiles 6 sind mit querlaufenden ringförmigen Rillen bzw· Einkerbungen 9 verseheneThe joint part 6 comprises a built-in tapered pin piece 8 which, when the joint part in the shin is in the corresponding position, extends downward therein, along an extension of the longitudinal axis the sleeve. The pin piece 8 and the upper sleeve piece 5 of the joint part 6 are annular with transverse Grooves or notches 9 provided
Das Gelenkteil 6 ist in eine erweiterte Bohrung 10 im Schienbein eingepaßt und wird mit herkömmlichem Knochenzement 11 in seiner Lage gehaltene Durch die Rillen 9 wird eine bes-The joint part 6 is fitted into an enlarged bore 10 in the shin bone and is secured with conventional bone cement 11 held in its position by the grooves 9 a best-
—4——4—
609815/04^2609815/04 ^ 2
sere Haftung des Zements am Gelenkteil 6 erzielteSere adhesion of the cement to the joint part 6 achieved
Wie sich aus der vorstehend beschriebenen Ausführungsform ergibt, ist eine Rotation des Stieles 1 im Gelenkteil 6 möglich, wodurch Torsionsbeanspruchungen des Gelenkes verringert werden, die sonst auf die Teile des Gelenkes während der Bewegung des unteren Gelenkgliedes einwirken würden.As can be seen from the embodiment described above, there is a rotation of the handle 1 in the joint part 6 possible, as a result of which torsional stresses on the joint are reduced, which otherwise on the parts of the joint during the movement of the lower joint member would act.
Selbstverständlich können die für die Hülse und den Stiel benutzten Materialien ausgetauscht werdeno Es ist beispielsweise auch möglich, die Hülse aus Metall und den Stiel aus Kunststoff herzustellen.Of course, the materials used for the sleeve and the stem can be replaced o example, it is also possible to prepare the metal sleeve and the stem from plastic.
Patentansprüche;Claims;
609815/CH42609815 / CH42
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4262174A GB1514479A (en) | 1974-10-01 | 1974-10-01 | Prosthetic joints |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2543911A1 true DE2543911A1 (en) | 1976-04-08 |
Family
ID=10425249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752543911 Withdrawn DE2543911A1 (en) | 1974-10-01 | 1975-10-01 | PROSTHETIC JOINT |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2543911A1 (en) |
FR (1) | FR2289161A1 (en) |
GB (1) | GB1514479A (en) |
IE (1) | IE41735B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2549318A1 (en) * | 1975-11-04 | 1977-05-05 | Dadurian Aram | KNEE PROSTHESIS |
DE2811331A1 (en) * | 1978-03-16 | 1979-09-27 | Schuett & Grundei Sanitaet | ELBOW JOINT IN THE FORM OF A FULL ENDO-PROSTHESIS |
EP0010527A1 (en) * | 1978-10-06 | 1980-04-30 | L.I.M.A. Lualdi Industrie MeccanicheAnduis Srl. | Prosthesis for limbs |
US4301553A (en) * | 1975-08-15 | 1981-11-24 | United States Surgical Corporation | Prosthetic knee joint |
DE4434806A1 (en) * | 1994-09-29 | 1996-04-04 | Peter Brehm | Prosthesis for knee joints |
US8268006B2 (en) | 2001-01-29 | 2012-09-18 | Zimmer, Inc. | Constrained prosthetic knee with rotating bearing |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403068A2 (en) * | 1976-07-28 | 1979-04-13 | Rambert Andre | Partial knee joint prosthesis - has femoral plate set directly into femur without anchorage socket |
US4892551A (en) * | 1986-07-03 | 1990-01-09 | Habley Medical Technology Corporation | Impact dissipating and load diverting total hip arthroplasty prosthesis |
GB9305279D0 (en) * | 1993-03-15 | 1993-05-05 | Univ London | Total knee replacement prothesis |
US6485519B2 (en) | 2001-01-29 | 2002-11-26 | Bristol-Myers Squibb Company | Constrained prosthetic knee with rotating bearing |
GB0503536D0 (en) * | 2005-02-21 | 2005-03-30 | Kriek Hans R | Joint devices |
-
1974
- 1974-10-01 GB GB4262174A patent/GB1514479A/en not_active Expired
-
1975
- 1975-09-29 IE IE212275A patent/IE41735B1/en unknown
- 1975-10-01 DE DE19752543911 patent/DE2543911A1/en not_active Withdrawn
- 1975-10-01 FR FR7530096A patent/FR2289161A1/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301553A (en) * | 1975-08-15 | 1981-11-24 | United States Surgical Corporation | Prosthetic knee joint |
DE2549318A1 (en) * | 1975-11-04 | 1977-05-05 | Dadurian Aram | KNEE PROSTHESIS |
DE2811331A1 (en) * | 1978-03-16 | 1979-09-27 | Schuett & Grundei Sanitaet | ELBOW JOINT IN THE FORM OF A FULL ENDO-PROSTHESIS |
EP0010527A1 (en) * | 1978-10-06 | 1980-04-30 | L.I.M.A. Lualdi Industrie MeccanicheAnduis Srl. | Prosthesis for limbs |
DE4434806A1 (en) * | 1994-09-29 | 1996-04-04 | Peter Brehm | Prosthesis for knee joints |
DE4434806B4 (en) * | 1994-09-29 | 2007-05-24 | Peter Brehm | knee prosthesis |
US8268006B2 (en) | 2001-01-29 | 2012-09-18 | Zimmer, Inc. | Constrained prosthetic knee with rotating bearing |
US8888857B2 (en) | 2001-01-29 | 2014-11-18 | Zimmer, Inc. | Constrained prosthetic knee with rotating bearing |
Also Published As
Publication number | Publication date |
---|---|
IE41735B1 (en) | 1980-03-12 |
FR2289161A1 (en) | 1976-05-28 |
IE41735L (en) | 1976-04-01 |
GB1514479A (en) | 1978-06-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |