US4531243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial hip joint socket
Assignee: Sulzer AG
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Filing: 1983-09-20
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Granted: 1985-07-30
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Expires: 2003-09-20
Abstract
Abstract The hip joint socket is provided with a peripheral edge or flange in which a plurality of bores are formed. Each bore narrows conically from one side of the peripheral edge towards the free surface of the socket to provide outflow paths for excess bone cement which is displaced during implanting of the socket in a pelvis. The construction in the bores also permits the excess cement to harden into a rivet-like plug to increase the securement of the hip joint socket in the cement bed.
Inventors
- 👤 Bernhard G. Weber
- 👤 Otto Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/32; A61F2/34; A61B; A61B90/00; A61B90/39; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/3008; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/3079; A61F2002/3241; A61F2002/3401; A61F2002/3406; A61F2/46; A61F2002/4631; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A method of implanting an artificial hip joint socket in a prepared pelvis, said method comprising the steps of forming a hardenable bone cement bed in the prepared pelvis, implanting a hip joint socket having an outwardly directed peripheral edge with a plurality of constricted bores each of which bores narrows from one side of the edge in a direction towards a free surface of the edge in the bone cement bed while permitting excess bone cement from the bed to flow into and through the bores, and removing the bone cement streaming from the bores at the free surface of the edge.
Claim 2
Independent Claim
103 words
A method of implanting an artificial hip joint socket in a prepared pelvis, said method comprising the steps of forming a hardenable bone cement bed in the prepared pelvis, implanting a hip joint socket having an outwardly directed peripheral edge with a plurality of constricted bores each of which bores narrows from one side of the edge in a direction towards a free surface of the edge in the bone cement bed while permitting excess bone cement from the bed to flow into and through the bores, and removing the bone cement streaming from the bores at the free surface of the edge.
Claim 3
Dependent Claim
54 words
A method as set forth in claim 1 wherein each bore narrows to a constriction located in a plane of said edge and widens from said constriction to a free surface of said edge and the bone cement in each bore is permitted to harden in each bore to form a rivet-like union therein.
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) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |