IP Library Granted Patent US 7,732,573
Granted Patent B2
US 7,732,573 · App. 11/718,135 · Granted Jun 8, 2010

Method for producing porous body comprising apatite/collagen composite fibers

Assignees: National Institute for Materials Science; Hoya Corporation
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Quick Facts
Patent No.
US 7,732,573
App. No.
11/718,135
Granted
Jun 8, 2010
Kind
B2
Abstract

A method for producing a porous body comprising apatite/collagen composite fibers comprising the steps of gelling a dispersion comprising long apatite/collagen composite fibers having an average length of 10-75 mm, short apatite/collagen composite fibers having an average length of 0.05-1 mm, and a liquid; freezing and drying the resultant gel to form a porous body; and cross-linking collagen in the porous body.

Claims (7)

1. A method for producing a porous body comprising apatite/collagen composite fibers comprising:

gelling a dispersion comprising long apatite/collagen composite fibers having an average length of 10-75 mm, wherein at least 90% by mass of the long apatite/collagen composite fibers has a length in the range of 5-100 mm, short apatite/collagen composite fibers having an average length of 0.05-1 mm, wherein at least 90% by mass of the short apatite/collagen composite fibers has a length in the range of 0.01-2 mm, and a liquid;

freezing and drying the resultant gel to form a porous body; and

cross-linking collagen in said porous body.

2. The method for producing a porous body comprising apatite/collagen composite fibers according to claim 1 , wherein a binder is not added to said dispersion.

3. The method for producing a porous body comprising apatite/collagen composite fibers according to claim 1 , wherein the ratio of said long fibers to said short fibers is 0.2-0.8 in said dispersion.

4. The method for producing a porous body comprising apatite/collagen composite fibers according to claim 2 , wherein the ratio of said long fibers to said short fibers is 0.2-0.8 in said dispersion.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 2, 2017
From: HOYA CORPORATION
To: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Reel/Frame 044090/0807 →
MERGER Recorded Apr 21, 2010
From: PENTAX CORPORATION
To: HOYA CORPORATION
Reel/Frame 024266/0819 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2007
From: TANAKA, JUNZO; KIKUCHI, MASANORI; IKOMA, TOSHIYUKI; SHOJI, DAISUKE; KAWAMURA, KATSUMI; NAKAJIMA, TAKEHIKO; MOCHIZUKI, NAOMI
To: NATIONAL INSTITUTE FOR MATERIALS SCIENCE; PENTAX CORPORATION
Reel/Frame 019222/0331 →
Priority Claims (1)
JP 2004-314343 · Oct 28, 2004 · national
Continuity (1)
Related Publication 20090166580A1 · Jul 2, 2009