Back to results
US 2014/0180424 A1Published application
Ball joint prosthesis and method
AssigneeZimmer, Inc.
InventorsJeff Dickerson, J. Craig Fryman, Donald L. Yakimicki
Life of this patent
Estimating the term…
Abstract
A ball joint prosthesis can include a shell, having an outer articular surface of a first material and an open distal end, configured to receive a sealing receptacle. A volume of a second material, within the shell, can be more compressible than the first material. The ball joint prosthesis can have an effective compressibility that is intermediate between a compressibility of the first material and a compressibility of the second material.
Claims20
A ball joint prosthesis, comprising:
- a shell, comprising:
- an outer articular surface of a first material;
- and
- an open distal end, configured to receive a portion of a sealing receptacle;
- and
- a volume of a second material, within the shell, that is more compressible than the first material;
- wherein the ball joint prosthesis has an effective compressibility that is intermediate between a compressibility of the first material and a compressibility of the second material.
4 more elements
A method of making a ball joint prosthesis, comprising:
- providing a shell, comprising:
- an outer articular surface of a first material;
- and
- an open distal end, configured to receive a portion of a sealing receptacle;
- and
- providing a volume of a second material, within the shell, that is more compressible than the first material,
- wherein the ball joint prosthesis has an effective compressibility that is intermediate between a compressibility of the first material and the compressibility of the second material.
4 more elements
A ball joint prosthesis, comprising:
- a shell, including:
- an outer articular surface of a first material;
- and
- an open distal end, configured to receive a portion of a prosthetic orthopedic stem;
- a volume of a second material that substantially fills the shell, the second material more compressible than the first material and within a specified threshold of a compressibility of bone to which the prosthetic orthopedic stem or shell is to be coupled;
- wherein the ball joint prosthesis has an effective stiffness that is intermediate between a compressibility of the first material and a compressibility of the second material;
- and
- a sealing receptacle, included in or coupled to the volume of the second material, the sealing receptacle configured to secure the prosthetic orthopedic stem to the ball joint prosthesis, the sealing receptacle including a back portion configured to be received within the volume of the second material and an front portion comprising a bore configured to secure the prosthetic orthopedic stem.
5 more elements
Dependencies are inferred from the claim text.