The present invention discloses an organic radiographic contrasting agent containing an aliphatic or alicyclic backbone and multiple halogen-substituted aromatic groups. Each of the halogen-substituted aromatic groups in the radiographic contrasting agent is substituted with at least three halogen atoms and is covalently attached to the aliphatic or alicyclic backbone. The present invention also discloses a radio-opaque polymeric material comprising the radiographic contrasting agent and at least one polymer. The radiographic contrasting agent is physically admixed with the at least one polymer or physically embedded or dispersed in the at least one polymer. The radio-opaque polymeric material provides enhanced contrasting intensity in radiographic imaging. The radio-opaque polymeric material can be applied on at least a portion of one surface of a medical device. The radio-opaque polymeric material can also be used to construct a medical device, a component thereof, or a portion of a component thereof.
本发明公开了一种含有脂肪族或脂
环烃骨架和多个卤素取代芳香基团的有机X线造影对比剂。X线造影对比剂中的每个卤素取代芳香基团都被至少三个卤素原子取代,并与脂肪族或脂
环烃骨架共价连接。本发明还公开了一种放射不透明聚合物材料,包括X线造影对比剂和至少一种聚合物。X线造影对比剂与至少一种聚合物物理混合或物理嵌入或分散在至少一种聚合物中。放射不透明聚合物材料在X线成像中提供增强的对比强度。该放射不透明聚合物材料可以应用于医疗器械的至少一部分表面。该放射不透明聚合物材料还可用于构建医疗器械、其组件或其部分组件。