US3906550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic device having a porous fiber metal structure
Assignee: Individual
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Filing: 1973-12-27
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Granted: 1975-09-23
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Expires: 1993-12-27
Abstract
Abstract Prosthetic devices for replacement, attachment and reconstruction of bone structure in the skeletal systems of humans and animals. The prosthetic devices may be a fiber metal structure of sufficient section to support loads adequately or may include a solid load carrying member having a fiber metal structure secured to the surface thereof. The fiber metal structure is sintered and open-pored so that the bone and tissue into which the prosthetic device is implanted will grow into such fiber metal structure. To provide the proper interlock between fibers, the individual fiber strands are prekinked prior to cutting into the desired length. The kink pattern should be substantially sinusoidal. Preferably such kink pattern should have an amplitude (H) to period (W) relationship, H/W of 0.24 or greater.
Inventors
- 👤 William Rostoker
- 👤 Jorge Galante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30767; A61F2/30907; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61C; A61C8/00; A61C8/0012; A61F2/32; A61F2/36; A61F2/3607; A61L; A61L27/00; A61L27/02; A61L27/04; A61F2/3662; A61F2002/30001; A61F2002/30316; A61F2002/30535; A61F2002/30599; A61F2/3094; A61F2002/30968; A61F2250/00; A61F2250/0058; A61F2250/006; A61F2250/0063; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12424; Y10T428/12479
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
124 words
A PROSTHETIC DEVICE FOR INCORPORATION INTO THE SKELETAL STRUCTURE OF A HUMAN OR ANIMAL INCLUDING: A POROUS FIBER METAL STRUCTURE FORMED FROM A PLURALITY OF SUBSTANTIALLY, SINUSOIDALLY SHAPED FIBER SRANDS, EACH OF SAID FIBERS HAVING A RATIO OF AMPLITUDE TO PERIOD OF SUBSTANTIALLY 0.24 OR GREATER, SAID STRANDS BEING METALLURGICALLY BONDED TO EACH OTHER AT THEIR POINTS OF CONTACT, SAID FIBER METAL STRUCTURE PROVIDING AT LEAST A PORTION OF THE SURFACE OF SAID PROSTHETIC DEVICE ADJACENT SAID SKELETAL STRUCTURE TO ENABLE BONE AND SOF TISSUE GROWTH INTO SAID METAL STRUCTURE, SAID PERIOD BEING SUBSTANTIALLY THE LENGTH OF A CYCLE OF SAID SINUSODIAL FIBER STRAND AND SAID AMPLITUDE BEING SUBSTANTIALLY THE HEIGHT/2 BETWEEN A POSITIVE PEAK AND A NEGATIVE PEAK OF SAID SINUSOIDAL FIBER STRAND.
Claim 2
Dependent Claim
124 words
A PROSTHETIC DEVICE FOR INCORPORATION INTO THE SKELETAL STRUCTURE OF A HUMAN OR ANIMAL INCLUDING: A POROUS FIBER METAL STRUCTURE FORMED FROM A PLURALITY OF SUBSTANTIALLY, SINUSOIDALLY SHAPED FIBER SRANDS, EACH OF SAID FIBERS HAVING A RATIO OF AMPLITUDE TO PERIOD OF SUBSTANTIALLY 0.24 OR GREATER, SAID STRANDS BEING METALLURGICALLY BONDED TO EACH OTHER AT THEIR POINTS OF CONTACT, SAID FIBER METAL STRUCTURE PROVIDING AT LEAST A PORTION OF THE SURFACE OF SAID PROSTHETIC DEVICE ADJACENT SAID SKELETAL STRUCTURE TO ENABLE BONE AND SOF TISSUE GROWTH INTO SAID METAL STRUCTURE, SAID PERIOD BEING SUBSTANTIALLY THE LENGTH OF A CYCLE OF SAID SINUSODIAL FIBER STRAND AND SAID AMPLITUDE BEING SUBSTANTIALLY THE HEIGHT/2 BETWEEN A POSITIVE PEAK AND A NEGATIVE PEAK OF SAID SINUSOIDAL FIBER STRAND.
Claim 3
Dependent Claim
17 words
The prosthetic device of claim 1, wherein said fiber metal structure is between 10% and 70% porous.
Claim 4
Dependent Claim
21 words
The prosthetic device of claim 1, wherein the diameter of said fiber strands is between about 0.013 centimeters and 0.030 centimeters.
Claim 5
Dependent Claim
21 words
The prosthetic device of claim 1, wherein the length of said fiber strands is between about 1.3 centimeter and 3.8 centimeters.
Claim 6
Dependent Claim
22 words
The prosthetic device of claim 1 includes a noncompressible rod, said fiber metal structure being secured to the outside of said rod.
Claim 7
Dependent Claim
26 words
The prosthetic device of claim 1, wherein said fiber metal structure is selected from the group consisting of titanium, Co-Cr-W alloy, stainless steel, tantalum and zirconium.
Claim 8
Dependent Claim
37 words
The prosthetic device of claim 1, includes: a wear resistant member, said fiber metal structure being mounted on said wear member, said fiber metal structure adapted to be in contact with said skeletal structure when implanted therein.
Claim 9
Dependent Claim
23 words
The prosthetic device of claim 5, wherein said fiber metal structure comprises a plurality of cylindrical segments mounted on and surrounding said rod.
Claim 10
Dependent Claim
30 words
The prosthetic device of claim 8 further includes: a second porous fiber metal structure having a bore therein, said bore being dimensioned to receive said rod with said segments thereon.
Claim 11
Dependent Claim
55 words
The prosthetic device of claim 1 wherein said device is a dental prosthesis, including an upstanding mounting member mounted in said fiber metal structure and extending outward therefrom, said fiber metal structure extending around said upstanding member for operatively contacting the jaw bone to receive the growth of said jaw bone and gingival soft tissue.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |