US4356571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic device
Assignee: Robert Bosch GmbH
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Filing: 1980-10-10
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Granted: 1982-11-02
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Expires: 2000-10-10
Abstract
Abstract A medical prostheses suitable for implant use comprising a cured fiber reinforced triazine resin shaped body. The fiber reinforcement is preferably a fabric formed from two dimensionally oriented fibers. The preferred fibers are high strength carbon fibers. The prosthesis is particularly useful for the fabrication of joints, for example hip joints, as well as for support and connecting elements suitable for implantation.
Inventors
- 👤 Friedrich Esper
- 👤 Walter Gohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/40; A61L27/44; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/30767; A61F2/3094; A61F2/30965; A61L27/443; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30009; A61F2250/00; A61F2250/0014; A61F2250/0028
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
Medical prosthesis suitable for implant use comprising a cured fiber reinforced resin body, said body having a substrate portion and a surface portion and at least said surface portion comprises a triazine resin; said triazine resin being a set liquid triazine thermosetting resin of addition polymerization type having the functional group Ar--O--C.tbd.N) n which has been set by heating to form the triazine ring ##STR2##
Claim 2
Dependent Claim
65 words
Medical prosthesis suitable for implant use comprising a cured fiber reinforced resin body, said body having a substrate portion and a surface portion and at least said surface portion comprises a triazine resin; said triazine resin being a set liquid triazine thermosetting resin of addition polymerization type having the functional group Ar--O--C.tbd.N) n which has been set by heating to form the triazine ring ##STR2##
Claim 3
Dependent Claim
11 words
The prosthesis of claim 1 wherein said fibers are carbon fibers.
Claim 4
Dependent Claim
22 words
The prosthesis of claim 1 or 2 wherein said fibers are formed into a fabric which is used to reinforce said resin.
Claim 5
Dependent Claim
25 words
The prosthesis of claim 1 or 2 wherein said resin is reinforced by a combination of fabric material and fibers in the form of strands.
Claim 6
Dependent Claim
18 words
The prosthesis of claim 3 wherein the fibers forming the fabric material are in a two dimensional orientation.
Claim 7
Dependent Claim
18 words
The prosthesis of claim 4 wherein the fibers forming the fabric material are in a two dimensional orientation.
Claim 8
Dependent Claim
28 words
The prosthesis of claim 6 having a bending strength in excess of 600 N/mm 2 and an modulus of elasticity of between 50,000 and 100,000 N/mm 2 .
Claim 9
Dependent Claim
28 words
The prosthesis of claim 5 having a bending strength in excess of 600 N/mm 2 and an modulus of elasticity of between 50,000 and 100,000 N/mm 2 .
Claim 10
Dependent Claim
23 words
The prosthesis of claim 1 wherein said triazine resin comprises substantially all of the resin component of said cured fiber reinforced resin body.
References Cited (Backward Citations)
US4035550A
Cited
US4268468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |