发明名称 |
Catheter balloon formed of ePTFE and a diene polymer |
摘要 |
A catheter balloon formed of a polymeric material such as expanded polytetrafluoroethylene (ePTFE) bonded to a second layer formed of a low tensile set polymer and/or impregnated with a low tensile set polymer. In a presently preferred embodiment, the low tensile set polymer is a silicone-polyurethane copolymer elastomer or a diene polymer elastomer. The low tensile set polymer has high strength, low modulus, high elongation, and low tensile set. The diene or silicone-polyurethane has a low tensile set, which facilitates deflation of the balloon to a low profile deflated configuration. One aspect of the invention provides improved attachment of the diene to the ePTFE. In one embodiment, the second layer is formed of a diene mixed with a bonding promoter such as a vulcanizing agent which is covalently bonded to the diene.
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申请公布号 |
US6946173(B2) |
申请公布日期 |
2005.09.20 |
申请号 |
US20020103274 |
申请日期 |
2002.03.21 |
申请人 |
ADVANCED CARDIOVASCULAR SYSTEMS, INC. |
发明人 |
LIM FLORENCIA;LONG CHI LE;CLAUDE CHARLES D.;LEE JEONG S.;SRIDHARAN SRINIVASAN;GONZALEZ FERNANDO;WANG EDWIN |
分类号 |
A61L29/00;A61F2/958;A61L29/04;A61L29/08;A61L29/12;A61M25/00;A61M25/16;(IPC1-7):B32B1/08;A61M25/10;A61M29/00 |
主分类号 |
A61L29/00 |
代理机构 |
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地址 |
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