The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2016
Filed:
Dec. 09, 2011
Applicants:
Kazuhiro Tanahashi, Otsu, JP;
Megumi Nakanishi, Otsu, JP;
Yasufumi Yamamura, Otsu, JP;
Masaki Fujita, Otsu, JP;
Inventors:
Kazuhiro Tanahashi, Otsu, JP;
Megumi Nakanishi, Otsu, JP;
Yasufumi Yamamura, Otsu, JP;
Masaki Fujita, Otsu, JP;
Assignee:
Toray Industries, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/332 (2006.01); C08G 65/00 (2006.01); A61L 31/14 (2006.01); C08J 3/12 (2006.01); C08J 3/24 (2006.01); A61L 24/00 (2006.01); A61L 24/04 (2006.01);
U.S. Cl.
CPC ...
C08G 65/00 (2013.01); A61L 24/0031 (2013.01); A61L 24/0042 (2013.01); A61L 24/046 (2013.01); A61L 31/14 (2013.01); A61L 31/148 (2013.01); C08G 65/332 (2013.01); C08G 65/3322 (2013.01); C08J 3/12 (2013.01); C08J 3/24 (2013.01); A61L 2300/60 (2013.01); A61L 2430/36 (2013.01); C08G 2650/30 (2013.01); C08J 2300/16 (2013.01);
Abstract
Spherical biodegradable particles have improved flexibility, cause less aggregation among particles, and have improved particle shape-recovering ability after passing through a catheter or the like. The biodegradable particles include a synthetic polymer chemically cross-linked to a polyvalent carboxylic acid, the biodegradable particles having a water content of 20 to 90% in a water-saturated state.