Set For Creating An Offset-Resurfacing Hip-Joint Implant
First Claim
1. A set for creating an offset-resurfacing hip-joint implant, the set comprising a 1 to 1.5 mm thick metallic acetabulum shell (1) shaped for insertion into a natural acetabulum, from which acetabulum only cartilage has been removed, a metallic hip-joint head cap (2) shaped for placement on a natural hip-joint head, from which head only cartilage has been removed, wherein the head cap (2) has a wall which increases constantly from a thickness of 2 mm to 6 mm viewed in cross section in a region of a base edge (6) of the head cap, such that an eccentricity is produced in an outer shape of the head cap, and an inlay (3) shaped for insertion into the acetabulum shell (1) as a sliding partner for the head cap (2), the inlay having a material thickness of 2 to 5 mm.
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Accused Products
Abstract
A set is provided for creating an offset-resurfacing hip-joint implant. The set includes a 1 to 1.5 mm thick metallic acetabulum shell (1) for insertion into the natural acetabulum, from which only cartilage has been removed, a metallic head cap (2) for placement on the natural hip-joint head, from which only cartilage has been removed, and an inlay (3) for insertion into the acetabulum shell (1) as a sliding partner for the head cap (2). The inlay has a material thickness of 2 to 5 mm. The head cap (2) has a wall thickness which increases constantly from a thickness of 2 mm to 6 mm viewed in cross section in the region of the base edge (6) of the head cap, so that an eccentricity is produced in its outer shape
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Citations
8 Claims
- 1. A set for creating an offset-resurfacing hip-joint implant, the set comprising a 1 to 1.5 mm thick metallic acetabulum shell (1) shaped for insertion into a natural acetabulum, from which acetabulum only cartilage has been removed, a metallic hip-joint head cap (2) shaped for placement on a natural hip-joint head, from which head only cartilage has been removed, wherein the head cap (2) has a wall which increases constantly from a thickness of 2 mm to 6 mm viewed in cross section in a region of a base edge (6) of the head cap, such that an eccentricity is produced in an outer shape of the head cap, and an inlay (3) shaped for insertion into the acetabulum shell (1) as a sliding partner for the head cap (2), the inlay having a material thickness of 2 to 5 mm.
Specification