EP0145210A2
Expired / Lapsed
EP
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Support particles coated with precursors biologically active glass
Assignee: EIDP Inc
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Filing: 1984-10-26
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Granted: —
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Expires: 2004-10-26
Abstract
Abstract An aqueous solution of precursors for biologically active glass, support particles coated with the solution, support particles coated with the glass, spheroidal particles of biologically active glass, processes for making the solution, coating the support, and for making the coated support and the spheroidal glass particles. The materials that comprise the biologically active glass are useful in prosthetic devices and implants for the human body.
Inventors
- 👤 Edward George Howard, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:03
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/089; A; A61; A61L; A61L27/00; A61L27/02; A61L27/10; A61L27/12; C03C1/00; C03C3/078; C03C3/097; A61F; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00293; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
10 words
An aqueous acid solution of precursors for biologically active glass.
Claim 2
Dependent Claim
10 words
An aqueous acid solution of precursors for biologically active glass.
Claim 3
Dependent Claim
76 words
A solution of precursors according to Claim 1 for biologically active glass having the composition: SiO 2 , 40 to 62 weight percent, Na 2 0, 10 to 32 weight percent, CaO, 10 to 32 weight percent, CaF2, 0 to 18 weight percent, 25, 0.1 to 12 weignt percent, and B 2 0 3 , 0 to 20 weight percent, wherein the sum of Na 2 0 and CaO is at least about 30 weight percent.
Claim 4
Dependent Claim
14 words
Inorganic support particles coated with the solution according to Claim 1 or Claim 2.
Claim 5
Dependent Claim
18 words
Inorganic support particles coated with the solution according to Claim 1 or 2 after drying and before firing.
Claim 6
Dependent Claim
8 words
Inorganic support particles coated with biologically active glass.
Claim 7
Dependent Claim
8 words
Inorganic support particles coated with biologically active glass.
Claim 8
Independent Claim
28 words
A method for coating inorganic support particles with precursors for biologically active glass comprising contacting the particles with an aqueous acid solution of precursors for biologically active glass.
Claim 9
Independent Claim
28 words
A method for coating inorganic support particles with precursors for biologically active glass comprising contacting the particles with an aqueous acid solution of precursors for biologically active glass.
Claim 10
Dependent Claim
40 words
A method for making particles of biologically active glass comprising spray-drying an aqueous acid solution of the precursors according to or 2, Claim 1/ and heating the spray-dried particles at an elevated temperature to convert the glass precursors to glass.
Claim 11
Dependent Claim
11 words
Biologically active glass particles made by the method of Claim 7.
Claim 12
Dependent Claim
6 words
Spheroidal particles of biologically active glass.
Claim 13
Dependent Claim
6 words
Spheroidal particles of biologically active glass.
Claim 14
Dependent Claim
16 words
A biomedical device comprising a uniform, homogeneous, body-compatible matrix of support particles and biologically active glass.
Claim 15
Dependent Claim
16 words
A biomedical device comprising a uniform, homogeneous, body-compatible matrix of support particles and biologically active glass.
References Cited (Backward Citations)
No citation records indexed.
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