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US 6,682,566 B2Granted
Modular socket prosthesis
OwnerKlaus Draenertinventor
Life of this patent
Estimating the term…
Abstract
The present invention essentially relates to a hip joint socket system for a “press-fit” anchorage in the bony acetabulum that allows the inserts that articulate with the artificial head to be connected securely, and, using said inserts, also allows the center of the rotation of the socket to be reconstructed, the risk of luxation to be eliminated, and the plane of load application to be varied across an infinite range of positions within a defined angular range.
Claims12
An artificial hip socket comprising:
- an outer shell adapted to be fitted in a patient's pelvis, the outer shell having a conical interior surface defining an interior cavity, and a rim that surrounds the interior cavity;
- an insert module that can be fitted in the outer shell, the insert module having a conical exterior surface that matches the conical interior surface of the outer shell, the insert module having a collar that extends over the rim of the outer shell when the insert module is fitted in the outer shell;
- and
- an articulating insert that is separate from the insert module and can be fitted in the insert module, the articulating insert having an interior cavity for receiving a femur head.
1 more element
An artificial hip socket comprising:
- an outer shell adapted to be fitted in a patient's pelvis, the outer shell having a conical interior surface;
- an insert module that can be fitted in the outer shell, the insert module having a conical exterior surface that matches the conical interior surface of the outer shell, the insert module having a conical interior surface, and
- an articulating insert that is separate from the insert module and can be fitted in the insert module, the articulating insert having a conical exterior surface that matches the conical interior surface of the insert module, and the articulating insert having an interior cavity for receiving a femur head.
An artificial hip socket comprising:
- an outer shell adapted to be fitted in a patient's pelvis, the outer shell having a conical interior surface,
- an insert module that can be fitted in the outer shell, the insert module having a conical exterior surface that matches the conical interior surface of the outer shell, and
- an articulating insert fitted in the insert module, the articulating insert having an interior cavity for receiving a femur head and being made of a different material from the insert module, wherein the insert module has a conical interior surface and the articulating insert has a conical exterior surface that matches the conical interior surface of the insert module.
A method of assembling an artificial hip socket, comprising:
- a) providing an outer shell adapted to be fitted in the patient's pelvis, the outer shell having a conical interior surface,
- b) fitting a trial insert in the outer shell and subsequently removing the trial insert,
- c) fitting an insert module in the outer shell, the insert module having a conical exterior surface that matches the conical interior surface of the outer shell, and
- d) fitting an articulating insert in the insert module, the articulating insert having an interior cavity for receiving a femur head.
1 more element
Dependencies are inferred from the claim text.