Patent US6436114B1 successfully refreshed from Google Patents.
US3683422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone prosthesis
Assignee: Bayer Corp
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Filing: 1970-08-10
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Granted: 1972-08-15
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Expires: 1990-08-10
Abstract
Abstract A prosthetic device with sub-periosteal, periosteal, or bone surface attachment for stress support, comprising a rigid reinforcing member and an elastomer-impregnated fibrous or woven fabric covering such member and firmly fixed to it. In one embodiment, a fibrous reinforced elastomer condyle-like member is affixed to one end of such reinforcing member, and a flexible pedicle extends outwardly from such condyle-like member and has at its remote end a bone-attaching head comprising a flat or disc base with a bone-exposed covering or coating of a tissueingrowth-receptive, open-pore fabric, to assist in providing a joint function. There is also affixed to the bone-exposed face of the elastomer-covered reinforcing member a coating of such tissue-ingrowth-receptive, open-pore fabric. All the elements where attached are firmly fixed to each other, the reinforcing member being also suitably sutured to the elastomer-impregnated fabric. The fiber and fabric parts are advantageously of Dacron, the fabric being preferably of Dacron velour; and the elastomer is advantageously silicone rubber. The device is adapted for insertion as a load-bearing element. A method for making the above device is also provided.
Inventors
- 👤 August L Stemmer
- 👤 Paul Kahn
- 👤 James A Stubstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:11
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30988; A61F2/3099; A61F2/28; A61F2/2803; A61F2/2846; A61F2/30767; A61F2/3094; A61F2/30965; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/3007; A61F2002/30316; A61F2002/30535; A61F2002/30563; A61F2002/3092
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
13 words
The prosthetic device of claim 1 wherein said reinforcing element is substantially flat.
Claim 2
Dependent Claim
12 words
The prosthetic device of claim 1 wherein said reinforcing element is metal.
Claim 3
Dependent Claim
30 words
The prosthetic device of claim 1 wherein said reinforcing element is covered on each side with a layer of woven fiber compatible with body fluids and impregnated with silicone rubber.
Claim 4
Dependent Claim
46 words
The prosthetic device of claim 1 wherein an amount of openpore fabric is in part unattached to said impregnated fabric to form at least one flap, said flap being adapted to fold over and attach to a cut bone end and interior bone face when emplaced.
Claim 5
Dependent Claim
115 words
A prosthetic device for repair of a resected mandible and adapted to emplacement by periosteal attachment, comprising in combination: a flat, rigid, mandible shaped metal reinforcing element, a layer of woven fabric embedded in elastomer and disposed at each flat surface of said reinforcing element, covering and enclosing said reinforcing element, one said surface being adapted to face a mandible bone when emplaced, a coating of tissue-ingrowth-receptive cloth disposed over at least a portion of said one flat surface and adapted to abut said bone and to receive tissue ingrowth therefrom, securing means for fastening together said cloth and said elastomer, and means for binding said metal element to said elastomer, said elastomer being cured.
Claim 6
Dependent Claim
30 words
The prosthetic device of claim 6 wherein said securing means is a layer of elastomeric adhesive disposed between said silicone rubber and said cloth and polymerized to said silicone rubber.
Claim 7
Dependent Claim
24 words
The prosthetic device of claim 6 wherein said means for binding comprises sutures passing around said metal element and through said woven fabric layers.
Claim 8
Dependent Claim
171 words
A prosthetic device for repair of a damaged bone structure and adapted to emplacement by periosteal attachment, comprising in combination: a. a substantially flat, shaped, rigid reinforcing element, b. a elastomer-impregnated fibrous coating contoured to and enclosing said element, c. an open-pore, tissue-ingrowth-receptive fabric coating disposed over at least a portion of a surface of said fibrous coating and being adapted to abut upon and attach to a bone surface when emplaced, d. said reinforcing element, fibrous coating and fabric coating being firmly affixed to each other and being compatible with body fluids, e. a condyle-like element extending from one end of said reinforcing element and having a rigid stem and a rounded terminal head, f. a flexible pedicle projecting from said stem and having a flat terminal head, said head having an outer face adapted to fit against a bone surface when emplaced, and g. a tissue-ingrowth-receptive fabric disposed over said outer face, h. all of said components being firmly affixed to each other, and being compatible with body fluids.
Claim 9
Dependent Claim
24 words
The prosthetic device of claim 9 wherein said condyle-like element is of non-porous, smooth silicone rubber, stiffened and reinforced internally with woven Dacron fiber.
Claim 10
Dependent Claim
21 words
The prosthetic device of claim 9 wherein said pedicle is of non-porous, smooth silicone rubber reinforced internally with flexible Dacron fibers.
Claim 11
Dependent Claim
13 words
The prosthetic device of claim 9 wherein said tissue-ingrowth-receptive fabric is Dacron velour.
Claim 12
Dependent Claim
25 words
The prosthetic device of claim 9 wherein Sutures are disposed around said reinforcing element and through said elastomer-impregnated fibrous coating to bind the same together.
Claim 13
Dependent Claim
23 words
The prosthetic device of claim 9 wherein said flat terminal head is disc shaped and said fabric extends substantially beyond the edges thereof.
Claim 14
Dependent Claim
71 words
In a bone prosthesis of physiologically compatible material suitable for implantation in a living body, a skeletal prosthetic element, a generally flat imperforate disc adapted to serve as an ingrowth anchor for said prosthesis on a periosteal surface adjacent the intended position of said prosthesis, and a single slender flexible pedicle joining said disc to said skeletal prosthetic element for continuously guiding it into a predetermined position by a hinge-like motion.
Claim 15
Dependent Claim
68 words
In a bone prosthesis a skeletal prosthetic element having a condyle-like element comprising part of said skeletal prosthetic element, a generally flat disc adapted to serve as an anchor for said prosthesis on a periosteal surface adjacent the intended position of said prosthesis, and a slender flexible pedicle joining said disc to said skeletal prosthetic element for continuously guiding it into a predetermined position by a hinge-like motion.
Claim 16
Dependent Claim
14 words
The prosthesis of claim 16 wherein said pedicle is joined to said condyle-like element.
Claim 17
Dependent Claim
45 words
A bone prosthesis, comprising a main member having a generally flattened shape, a condyle-like member connected to said main member by a thick stem portion and having a head, and a pedicle having a thin stem connected to said thick stem portion and a head.
Claim 18
Dependent Claim
30 words
The bone prosthesis of claim 18 wherein said main member, said condyle-like member, and said pedicle comprise a physiologically compatible elastomer, said main member containing a relatively rigid reinforcing member.
Claim 19
Dependent Claim
25 words
The bone prosthesis of claim 19 wherein said main member, said stem portion, and said pedicle are covered with s physiologically compatible open-pore pile fabric.
Claim 20
Dependent Claim
26 words
The bone prosthesis of claim 20 wherein said main member is oversize relative to intended installations enabling trimming at time of surgery for each individual installation.
Claim 21
Dependent Claim
123 words
A prosthetic device for replacement or repair of a damaged or missing bone structure and adapted to emplacement by sub-periosteal, periosteal or bone surface attachment, including in combination: a shaped, relatively rigid reinforcing element, which when bent retains its shape, extending continuously from one end to the other, an elastomeric covering fully enclosing said element, and contoured generally thereto, and an open-pore, tissue-ingrowth-receptive fabric coating disposed over at least a portion of a surface of said elastomeric covering and being adapted to abut upon a supporting tissue surface when emplaced, said reinforcing element and elastomeric covering being firmly affixed to each other, and being compatible with body fluids, and at least a portion of said open-pore fabric being affixed to said elastomeric coating.
Claim 22
Dependent Claim
24 words
The prosthetic device of claim 22 wherein said reinforcing element is substantially flat and sufficiently flexible for shape conformation at the time of emplacement.
Claim 23
Dependent Claim
17 words
The prosthetic device of claim 22 wherein said elastomeric element is reinforced by contained physiologically compatible fibers.
Claim 24
Dependent Claim
31 words
The prosthetic device of claim 22 wherein said elastomeric covering and the fabric coating thereon are oversize relative to intended installations enabling trimming at time of surgery for each individual installation.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |