EP0835668A1
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EP
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Carbonated hydroxyapatite compositions and uses
Assignee: Norian Corp
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Filing: 1993-09-24
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Granted: —
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Expires: 2013-09-24
Abstract
Abstract A calcium phosphate cement composition is characterized by the use of a phosphate or carbonate solution as a wet reactant. A method of forming the cement includes combining dry ingredients including calcium and phosphate sources, with such a solution.
Inventors
- 👤 Brent R. Constantz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 05:23
CPC Classifications
A; A61; A61L; A61L24/00; A61L24/02; A61K; A61K6/00; A61K6/60; A61K6/69; A61K6/70; A61K6/71; A61K6/74; A61K6/75; A61L27/00; A61L27/02; A61L27/12; A61L27/40; A61L27/44; A61L27/46; A61L27/50; A61L27/58; C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/32; C01B25/322; C01B25/327; C01B25/455; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2002/2817; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2210/00; A61F2210/0004; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00293
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
A calcium phosphate cement composition
comprising: a phosphoric acid source free of uncombined
water; a calcium source; and a phosphate or carbonate solution.
Claim 2
Dependent Claim
24 words
The cement according to claim 1, wherein the
concentration of said phosphate or carbonate in said
solution ranges from about 0.01 to 2.0 M.
Claim 3
Dependent Claim
21 words
The cement according to claims 1 or 2,
wherein said solution has a pH in the range of 6 to
11.
Claim 4
Dependent Claim
22 words
The cement according to claims 1, 2 or 3,
wherein said solution has a pH in the range of 7 to 9.
Claim 5
Dependent Claim
12 words
A kit comprising a cement according to any
of the previous claims.
Claim 6
Independent Claim
50 words
A method of making a calcium phosphate
material, said method comprising: combining dry ingredients comprising a calcium
source and a phosphoric acid source free of uncombined
water with a phosphate or carbonate solution to make a
flowable composition; and allowing said flowable composition to set into
said calcium phosphate material.
Claim 7
Dependent Claim
25 words
The method according to claim 6, wherein
said method comprises combining the dry ingredients
and the solution of any one of claims 1 to 4.
Claim 8
Dependent Claim
20 words
A paste produced by combination of the
components of the cement according to any one of
claims 1 to 4.
References Cited (Backward Citations)
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