PEARL LIKE POLYVINYL ALCOHOL PARTICLES, PRODUCTION PROCESS THEREOF, AND TEMPORARY VASCULAR EMBOLIC AGENT

摘要

PROBLEM TO BE SOLVED: To provide a temporary vascular embolic agent temporarily blocking the blood vessel in vivo, having appropriate dissolution speed suitable for use in the blood vessel in which blood flow is fast and being more superior in the passing property of a catheter and controllability of embolization time than conventional one.

SOLUTION: The embolization of the blood vessel led to cardiac muscle in which blood flow speed is fast is enabled by the temporary vascular embolic agent using the pearl like polyvinyl alcohol (PVA) particles having 0.1-3 mol% of a 1,2-diol configuration unit represented by general formula (1) and having a saponification degree of ≥99 mol%.

COPYRIGHT: (C)2010,JPO&INPIT