发明申请
- 专利标题： BIOCOMPATIBLE POLYCARBONATE AND RADIOPAQUE POLYMER COMPOSITIONS AND METHODS OF MANUFACTURING MEDICAL DEVICES WITH SAME
- 专利标题（中）： 生物成分聚碳酸酯和放射性聚合物组合物及其制造方法
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申请号： US12347217申请日： 2008-12-31
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公开(公告)号： US20100168270A1公开(公告)日： 2010-07-01
- 发明人: Xiaoping Guo , David P. Johnson , Richard E. Stehr
- 申请人： Xiaoping Guo , David P. Johnson , Richard E. Stehr
- 主分类号： A61F2/06
- IPC分类号： A61F2/06
摘要：
The invention relates to biocompatible polycarbonate/polyamide polymer compositions for use in medical and surgical devices. Additional additives, crosslinking agents, phosphites, and optionally a radiopaque filler or fillers can be used to produce the high performance compositions desired. The polymer compositions have improved melt processability along with balanced or enhanced physical and mechanical properties, especially when combined or over-extruded onto or covering other polymer layers, such as soft and/or flexible layers commonly used in medical device applications and catheter tips, for example. The ability to incorporate radiopaque compounds into these polymer compositions during melt processing offers improved methods for monitoring and visualizing medical devices when used inside the body and as well as improving the operating characteristics of the medical device components
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