DLA Piper LLP (US)
Biodegradable particles for medical treatment and vascular embolization material
Biodegradable particles for medical use and a vascular embolization material 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 for medical use are composed of an A1-B-A2 type triblock copolymer, wherein A1 and A2 are each a block of biodegradable copolymer constituted of monomers including glycolic acid, lactic acid and 6-hydroxycaproic acid, and B is a block of water-soluble polymer.
Toray Industries, Inc.
A A A A Y A A C
A61P A61L A61P A61L Y10T A61L A61L C08G
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Megumi Masaki Yasufumi Kazuhiro
Nakanishi Fujita Yamamura Tanahashi