US5011497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint prosthesis
Assignee: DNB NOR BANK ASA NORGE FILIAL SVERIGE
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Filing: 1988-10-28
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Granted: 1991-04-30
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Expires: 2008-10-28
Abstract
Abstract Joint prosthesis comprising a joint section (10) having a web (16) of an elastomer, arranged between two pins (11) which are inserted each in one of two tubular screws (17) to be secured in the bones between which the joint prosthesis shall be arranged, the pins being secured in the web by means of flanges embedded into the elastomer. Pins and screws comprise a biocompatible material.
Inventors
- 👤 Jan-Ove Persson
- 👤 Per-Ingvar Branemark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/42; A61F2/4241; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30131; A61F2002/30138; A61F2002/30143; A61F2002/30159; A61F2002/30177; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30362; A61F2002/30364; A61F2002/30367; A61F2002/30535; A61F2002/30563; A61F2002/30565; A61F2002/30571; A61F2/30721; A61F2/30734; A61F2002/30738; A61F2/30767; A61F2/30771; A61F2002/3085; A61F2002/30878; A61F2002/4243; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0017; A61F2230/0028; A61F2230/0056
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
87 words
A joint prosthesis configured to replace an existing joint comprising: an elastomeric webbed joint section; two screws with bores at ends adjacent to the elastomeric webbed joint section, the screws configured to be received in the respective bones adjacent the joint; two elongated pins characterized in that each pin has at one end thereof a transverse flange, said flanges being embedded into opposite sides of the webbed joint section, and wherein each of said pins is adapted to be inserted into the bores of respective hollow screws.
Claim 2
Dependent Claim
87 words
A joint prosthesis configured to replace an existing joint comprising: an elastomeric webbed joint section; two screws with bores at ends adjacent to the elastomeric webbed joint section, the screws configured to be received in the respective bones adjacent the joint; two elongated pins characterized in that each pin has at one end thereof a transverse flange, said flanges being embedded into opposite sides of the webbed joint section, and wherein each of said pins is adapted to be inserted into the bores of respective hollow screws.
Claim 3
Dependent Claim
18 words
A joint prosthesis as in claim 1, wherein the webbed joint section has at least one curved surface.
Claim 4
Dependent Claim
12 words
Joint prosthesis as in claim 1 wherein the flanges (12) are apertured.
Claim 5
Dependent Claim
23 words
Joint prosthesis as in claim 3, further including an injection-molded webbed joint section (10) adapted to cooperate with the apertures of the flanges.
Claim 6
Dependent Claim
17 words
Joint prosthesis as in claim 1 wherein the pins (11) are rotatably mounted in the screws (17).
Claim 7
Dependent Claim
17 words
Joint prosthesis as in claim 1 wherein the pins (11) are non-rotatably guided in the screws (17).
Claim 8
Dependent Claim
23 words
Joint prosthesis as in claim 6 wherein the pins (11) and bores in the screws (17), receiving said pins, have non-round cross-sectional shape.
Claim 9
Dependent Claim
17 words
Joint prosthesis as in claim 1 wherein the pins (11) and the screws (17) consist of titanium.
References Cited (Backward Citations)
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Cited
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US4229839A
Cited
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Cited
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Cited
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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) | 1994-04-29 | 1994-10-29 | 1995-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-29 | 1998-10-29 | 1999-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-29 | 2002-10-29 | 2003-04-30 | $7700.00 | Window Closed / Lapsed |