LIM, LISA,HERMEL-DAVIDOCK, THERESA,WEIMER, MARC W.,BURKHOLZ, JONATHAN KARL
申请号：
CA3059280
公开号：
CA3059280A1
申请日:
2018.04.05
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
Catheter tubing comprises: an elongate body comprising a base thermoplastic polyurethane； and a compounded thermoplastic polyurethane co-extruded with the base thermoplastic polyurethane to provide a section of catheter tubing discrete from the elongate body, the compounded thermoplastic polyurethane comprising a thermoplastic polyurethane and a radiopaque material, wherein the catheter tubing comprises a first elastic modulus under first conditions prior to entry into a patient； and wherein when exposed to second conditions comprising two or more in vivo stimuli for a duration of time the catheter tubing comprises a second elastic modulus that is not more than fifty percent of the first modulus.
