Patent US2515110A successfully refreshed from Google Patents.
Patent US4992226A successfully refreshed from Google Patents.
US4992226A
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US
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Method of making molds with xenogeneic collagen/mineral preparations for bone repair
Assignee: Angiotech Biomaterials Corp
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Filing: 1988-09-16
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Granted: 1991-02-12
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Expires: 2008-09-16
Abstract
Abstract A process for coating the pores of a mineral matrix with collagen by pumping collagen through the molded matrix is disclosed. The resulting coated matrix can be used as a prosthesis in bone repair.
Inventors
- 👤 Karl A. Piez
- 👤 Bruce B. Pharriss
- 👤 George H. Chu
- 👤 Thomas L. Smestad
- 👤 Diana Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/40; A61L27/44; A61L27/46; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2002/2835; A61L2430/00; A61L2430/02; Y; Y10; Y10S; Y10S623/00; Y10S623/901; Y10S623/92; Y10S623/923
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
A process for coating the pores in a porous calcium phosphate mineral material with collagen, which process comprises pumping a collagen dispersion through the mineral material, which material has been placed in a mold, said mold having an inlet port and an outlet port, said ports being capable of permitting the flow of collagen dispersion but preventing the flow of said mineral material, wherein said pumping is conducted by pumping said dispersion into the inlet port through said porous material and out the outlet port.
Claim 2
Dependent Claim
85 words
A process for coating the pores in a porous calcium phosphate mineral material with collagen, which process comprises pumping a collagen dispersion through the mineral material, which material has been placed in a mold, said mold having an inlet port and an outlet port, said ports being capable of permitting the flow of collagen dispersion but preventing the flow of said mineral material, wherein said pumping is conducted by pumping said dispersion into the inlet port through said porous material and out the outlet port.
Claim 3
Dependent Claim
14 words
The process of claim 1 wherein the mineral material is a solid porous block.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the mineral material is a powder.
Claim 5
Dependent Claim
22 words
The process of claim 1 wherein the collagen dispersion is a dispersion containing 35 mg/ml-65 mg/ml reconstituted fibrillar atelopeptide collagen in saline.
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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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |