Patent US5092900A successfully refreshed from Google Patents.
US5092900A
Expired / Lapsed
US
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Femur head prosthesis
Assignee: Protek AG
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Filing: 1991-03-06
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Granted: 1992-03-03
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Expires: 2011-03-06
Abstract
Abstract A femur head prosthesis is provided with a shank body for implanting in a femur and a pair of removeably fastened cheeks which are secured to opposite sides at a proximal end of the shank body. The cheeks can be selected from a kit of different sized cheeks. Also, each cheek has a bulge extending laterally from the shank body. Also, each cheek tapers in conically from lateral to medial and from proximal to distal.
Inventors
- 👤 Pier G. Marchetti
- 👤 Roland Willi
- 👤 Rudolf Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30734; A61F2/30767; A61F2/32; A61F2/36; A61F2/3662; A61F2/367; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30433; A61F2/30771; A61F2002/30772; A61F2002/30774; A61F2/3094; A61F2002/30975; A61F2220/00; A61F2220/0025; A61F2220/0041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A femur head prosthesis comprising a shank body for implanting in a femur; and a pair of cheeks removably fastened to opposite anterior and posterior sides of a proximal end of said shank body, each said cheek having a bulge extending laterally from said cheek and outwardly beyond said shank body and tapering in conically from a lateral side of said cheek to a medial side of said cheek and from proximal to distal.
Claim 2
Dependent Claim
74 words
A femur head prosthesis comprising a shank body for implanting in a femur; and a pair of cheeks removably fastened to opposite anterior and posterior sides of a proximal end of said shank body, each said cheek having a bulge extending laterally from said cheek and outwardly beyond said shank body and tapering in conically from a lateral side of said cheek to a medial side of said cheek and from proximal to distal.
Claim 3
Dependent Claim
20 words
A prosthesis as set forth in claim 1 wherein said cheeks define a longitudinally disposed groove between said bulges thereof.
Claim 4
Dependent Claim
27 words
A prosthesis as set forth in claim 1 wherein each cheek has a surface remote from said shank body with a structure thereon of projections and recesses.
Claim 5
Dependent Claim
31 words
A prosthesis as set forth in claim 1 wherein said shank body has a recess on each anterior and posterior side in said proximal end to receive a respective cheek therein.
Claim 6
Dependent Claim
26 words
A prosthesis as set forth in claim 1 wherein each bulge tapers laterally inwardly from proximal to distal at an angle of from 0° to 20°.
Claim 7
Dependent Claim
24 words
A prosthesis as set forth in claim 1 wherein each bulge tapers inwardly from lateral to medial at an angle from 0° to 25°.
Claim 8
Dependent Claim
26 words
A prosthesis as set forth in claim 1 wherein each bulge tapers longitudinally inwardly from proximal to distal at an angle of from 0° to 15°.
Claim 9
Dependent Claim
76 words
A kit for a femur head prosthesis comprising a shank body for implanting in a femur; and a plurality of cheeks for selective mounting to opposite anterior and posterior sides of a proximal end of said shank body, each said cheek having a bulge extending laterally from and extending outward said shank body and tapering in conically from a lateral side of said cheek to a medial side of said cheek and from proximal to distal.
Claim 10
Dependent Claim
76 words
A kit for a femur head prosthesis comprising a shank body for implanting in a femur; and a plurality of cheeks for selective mounting to opposite anterior and posterior sides of a proximal end of said shank body, each said cheek having a bulge extending laterally from and extending outward said shank body and tapering in conically from a lateral side of said cheek to a medial side of said cheek and from proximal to distal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |