DRUG ELUTION-TYPE CATHETER AND METHOD FOR MANUFACTURING THE DRUG ELUTION-TYPE CATHETER

摘要

Disclosed is a drug elution-type catheter. In the drug elution-type catheter, biocompatible nanoparticles (1) encapsulating a physiologically active substance and having a surface modified with a positive charge are electrically adhered to a balloon part (9) in a catheter body (5) through a negatively charged resin layer (11) to form a nanoparticle layer (12). After the catheter body (5) is indwelled in a living body, the nanoparticles (1) are gradually eluted from the nanoparticle layer (12) and are efficiently taken into cells.