申请人:Clemson University
公开号:US20150290344A1
公开(公告)日:2015-10-15
Biodegradable, radio-opaque polyesters and poly(ester amides) are described herein. The polyesters contain a plurality of radio-opaque agents or radio-opaque agent-containing moieties that are covalently bound along or from the polymer backbone. The agents/moieties may be bound to the termini of the polymer provided they are bound within the polyester backbone as well. The polyester can be aliphatic or aromatic. The polyester and poly(ester amide) is substituted with a plurality of radio-opaque graft agents or prepared from an appropriate radio-opaque monomer agent. The materials can be used for any application where a radio-opaque material is desired or necessary. The materials can be used to form, in whole or in part, a medical device, or coating thereon or therein.
本文介绍了可生物降解、放射性不透明的聚酯和聚酯酰胺。聚酯中含有多种放射性不透明剂或含有这些剂的官能团,这些剂/官能团沿着或从聚合物骨架上共价结合。这些剂/官能团可以结合到聚合物的末端,只要它们也在聚酯骨架内结合。聚酯可以是脂肪族或芳香族的。聚酯和聚酯酰胺被多种放射性不透明的嫁接剂取代或由适当的放射性不透明单体剂制备而成。这些材料可用于任何需要放射性不透明材料的应用。这些材料可用于制造医疗器械的整体或部分,或用于其内部或外部的涂层。