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US4743262A
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Acetabular cup prosthesis
Assignee: Individual
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Filing: 1987-03-24
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Granted: 1988-05-10
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Expires: 2007-03-24
Abstract
Abstract Fins on a hip prosthesis implant for anchoring the implant in good bone. The fins may be integral with, or separately attachable to, the implant. The fins extend radially outwardly beyond the perimeter of the implant from the front face longitudinally rearward.
Inventors
- 👤 Raymond G. Tronzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:49
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/46; A61F2/4684; A61F2/30721; A61F2/30734; A61F2/32; A61F2/30767; A61F2/34; A61F2/36; A61F2/3662; A61F2/367; A61F2/3676; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30158; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30332; A61F2002/30383; A61F2002/30387; A61F2002/30476; A61F2002/30487; A61F2002/305; A61F2002/30535; A61F2002/30594; A61F2002/30604; A61F2002/30616; A61F2002/30617; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/3082; A61F2002/30823; A61F2002/30904; A61F2002/3412; A61F2002/3417; A61F2002/344; A61F2002/3443; A61F2002/3453; A61F2002/3462; A61F2002/348; A61F2002/3493; A61F2/3609; A61F2002/3611; A61F2002/3625; A61F2002/3631; A61F2002/365; A61F2002/3678; A61F2002/368; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0026; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0097; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
An acetabular cup prothesis comprising a body extending generally longitudinally and terminating into front and rear surfaces, said front surface extending substantially transversely to said body; and at least one fin for securing said cup to a prepared acetabulum cavity, said fin having a length extending generally longitudinally from said front surface toward said rear surface continuously along said body throughout the entire length of said fin, and said fin being configured so as to extend radially outwardly beyond the perimeter of said front surface and said body so as to engage with the cavity thereby securing said cup.
Claim 2
Dependent Claim
99 words
An acetabular cup prothesis comprising a body extending generally longitudinally and terminating into front and rear surfaces, said front surface extending substantially transversely to said body; and at least one fin for securing said cup to a prepared acetabulum cavity, said fin having a length extending generally longitudinally from said front surface toward said rear surface continuously along said body throughout the entire length of said fin, and said fin being configured so as to extend radially outwardly beyond the perimeter of said front surface and said body so as to engage with the cavity thereby securing said cup.
Claim 3
Dependent Claim
14 words
An implant of claim 1, wherein the body has a generally conical outer surface.
Claim 4
Dependent Claim
14 words
An implant of claim 1, wherein the body has a generally hemispherical outer surface.
Claim 5
Dependent Claim
14 words
An implant of claim 1, wherein the body has threads on its outer surface.
Claim 6
Dependent Claim
13 words
An implant of claim 1, wherein the implant has a porous outer surface.
Claim 7
Dependent Claim
13 words
An implant of claim 1, wherein the fins are integral with the body.
Claim 8
Dependent Claim
19 words
An implant of claim 1, wherein each of the fins has a bore adapted to receive an anchoring screw.
Claim 9
Dependent Claim
37 words
A device of claim 7, wherein the longitudinal axis of the bore diverges outwardly rearwardly with respect to the longitudinal axis of the body whereby the screw can be anchored in bone radially outward from the fin.
References Cited (Backward Citations)
US3641590A
Cited
US3685058A
Cited
US3808606A
Cited
US3840904A
Cited
DE2411617A1
Cited
DE2950536A1
Cited
DE3129174A1
Cited
DE3205527A1
Cited
USD276463S
Cited
US4566138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |