发明名称 |
Thermoplastic polyurethane blends |
摘要 |
A thermoplastic polyurethane chain extended with an alkylenediol is blended with a thermoplastic polyurethane chain extended with an oxyalkylene qlycol oligomer. The blend is extruded into a catheter tubing having sufficient initial stiffness for satisfactory insertion in a patient and a high degree of softening for safe positioning and long term catheterization procedures without the risk of vessel wall perforation.
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申请公布号 |
US5281677(A) |
申请公布日期 |
1994.01.25 |
申请号 |
US19920940274 |
申请日期 |
1992.09.03 |
申请人 |
BECTON, DICKINSON AND COMPANY |
发明人 |
ONWUNAKA, THEO O.;ONWUMERE, FIDELIS C.;LAMBERT, JAMES M. |
分类号 |
A61L29/00;A61L29/06;C08L75/00;C08L75/04;C08L75/08;(IPC1-7):C08L83/10 |
主分类号 |
A61L29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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