DLA Piper LLP (US)
Biodegradable particles, vascular occlusion material, and method for producing biodegradable particles
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.
Toray Industries, Inc.
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Kazuhiro Megumi Yasufumi Masaki
Tanahashi Nakanishi Yamamura Fujita