Compliant implant
AssigneeDePuy Synthes Products, Inc.
InventorsAlexander Hasse, Lucio Flavio Campanile, Tom Overes, Cyril Voisard, Eva Maria Wyss
Life of this patent
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Abstract
An implant extends along a central axis, and includes first and second members spaced along the central axis. The implant can include a compliant interface. The compliant interface includes a plurality of spring members, the plurality of spring members arranged to space apart the first member from the second member along the central axis.
Claims35
A compliant orthopaedic implant that is compressible along a central axis, the compliant orthopaedic implant comprising:
- a first member;
- a second member spaced from the first member along the central axis;
- and
- a compliant interface connected between the first and second members, the compliant interface including at least a pair of spring members that are bracingly connected so as to permit the first and second members to rotate relative to each other about the central axis, wherein each of the at least a pair of spring members space the first member from the second member along the central axis, each spring member of the at least a pair of spring members being curved with respect to the central axis so as to define respective vertices that face each other, wherein application of a compression force to the implant along the central axis causes the spring members to compress, thereby moving the vertices toward the each other along a direction that is angularly offset with respect to the central axis.
A compliant orthopaedic implant comprising:
- a first end member defining a first bone engaging surface;
- a second end member defining a second bone engaging surface;
- and
- a compliant interface including at least a pair of spring members that each extend from the first end member to the second end member such that the first and second end members are spaced apart along a central axis, the at least a pair of spring members being curved with respect to the central axis so as to define respective vertices that face each other, wherein application of a compression force to the implant along the central axis causes the spring members to compress, thereby moving the vertices toward each other, the compliant interface further including at least one stiffening member connected between each of the pair of spring members, the at least one stiffening member configured to permit relative rotation of the first and second end members about the central axis.
A compliant orthopaedic implant that is compressible along a central axis, the compliant orthopaedic implant comprising:
- a first member;
- a second member spaced from the first member along the central axis;
- and
- a compliant interface connected between the first and second members, the compliant interface including at least a pair of spring members that are bracingly connected so as to permit the first and second members to rotate relative to each other about the central axis, wherein each of the at least a pair of spring members space the first member from the second member along the central axis, each spring member of the at least a pair of spring members being curved with respect to the central axis so as to define respective vertices that face each other, wherein application of a compression force to the implant along the central axis causes the spring members to compress, thereby moving the vertices toward the central axis along a direction that is angularly offset with respect to the central axis.
Dependencies are inferred from the claim text.