US4865604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic bone joint
Assignee: Individual
•
Filing: 1988-08-29
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Granted: 1989-09-12
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Expires: 2008-08-29
Abstract
Abstract The invention replaces the natural joint structure with a porous globe structure, filled with bone graft, that is attached to a prosthetic shaft. The bone graft on the globe structure as it matures provides continuous bone structure which in combination with the globe structure provides a load sharing combination.
Inventors
- 👤 Chaim Rogozinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/36; A61F2/3601; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/74; A61B17/742; A61B17/746; A61F2/34; A61F2/3609; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30316; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30907; A61F2002/30909
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
A ball joint prosthesis comprising a ball joint, said ball joint comprising a hollow, globular structure defined by a plurality of spaced struts having porous mesh mounted therebetween, said struts and said mesh forming the globular surface of said structure and an orifice for the introduction of bone graft material into the hollow interior of said structure, and means for securing said structure to the bone joint from which the natural ball of a joint has been resected.
Claim 2
Dependent Claim
78 words
A ball joint prosthesis comprising a ball joint, said ball joint comprising a hollow, globular structure defined by a plurality of spaced struts having porous mesh mounted therebetween, said struts and said mesh forming the globular surface of said structure and an orifice for the introduction of bone graft material into the hollow interior of said structure, and means for securing said structure to the bone joint from which the natural ball of a joint has been resected.
Claim 3
Dependent Claim
120 words
A prosthetic bone joint comprising a ball joint prosthesis and an acetabular cap prosthesis, said ball joint prosthesis comprising a hollow, globular structure defined by a plurality of spaced struts having porous mesh mounted therebetween, said struts and said mesh forming the globular surface of said structure and an orifice for the introduction of bone graft material into the hollow interior of said structure, and means for securing said structure to the bone joint from which the natural ball of a joint has been resected, and said acetabular cap prosthesis comprising a simulated acetabular cap structure, said structure being defined by a plurality of struts having porous mesh therebetween, said struts and said mesh forming the surface of said structure.
Claim 4
Dependent Claim
120 words
A prosthetic bone joint comprising a ball joint prosthesis and an acetabular cap prosthesis, said ball joint prosthesis comprising a hollow, globular structure defined by a plurality of spaced struts having porous mesh mounted therebetween, said struts and said mesh forming the globular surface of said structure and an orifice for the introduction of bone graft material into the hollow interior of said structure, and means for securing said structure to the bone joint from which the natural ball of a joint has been resected, and said acetabular cap prosthesis comprising a simulated acetabular cap structure, said structure being defined by a plurality of struts having porous mesh therebetween, said struts and said mesh forming the surface of said structure.
References Cited (Backward Citations)
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FR1287526A
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Cited
US4501269A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |