Lisa Lim,Theresa Hermel-Davidock,Marc W. Weimer,Jonathan Karl Burkholz
申请号：
US16788937
公开号：
US20200179572A1
申请日:
2020.02.12
申请国别(地区):
US
年份:
2020
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.
