申请人:Coloplast A/S
公开号:US10252291B2
公开(公告)日:2019-04-09
The present invention relates to a method for the preparation of a medical device element by means of extrusion or injection molding and to medical devices comprising such extruded or injection molded medical device elements. The medical device elements (e.g. tubes, wires, lines, stents, catheters, guides, endodontic instruments, needles, trocars for e.g. laparoscopic surgery, laparoscopic accessories, surgical instruments, guide wires) are characterized by a prefabricated shaped article or a thermoplastic substrate polymer having thereon a layer of a covalently cross-linked coating composition of a thermoplastic matrix polymer and a hydrophilic polymer. The method involves a coating composition comprising a thermoplastic matrix polymer, a hydrophilic polymer, and one or more photo-initiator(s), e.g. covalently linked to molecules of the thermoplastic matrix polymer and/or to molecules of the hydrophilic polymer. The coating composition is irradiated with UV or visible light so as to covalently cross-link said coating composition.
本发明涉及一种通过挤压或注射成型制备医疗器械元件的方法,以及由这种挤压或注射成型医疗器械元件组成的医疗器械。这些医疗器械元件(如管、线、管路、支架、导管、导引器、根管器械、针、腹腔镜手术用套管、腹腔镜附件、手术器械、导丝)的特征是预制成型品或热塑性基质聚合物上有一层由热塑性基质聚合物和亲水性聚合物组成的共价交联涂层组合物。该方法涉及一种涂层组合物,该组合物包括热塑性基质聚合物、亲水性聚合物和一种或多种光引发剂,例如与热塑性基质聚合物分子和/或亲水性聚合物分子共价连接的光引发剂。用紫外线或可见光照射涂层组合物,使其共价交联。