发明名称 |
INTRAVASCULAR CATHETER WITH A NONTRAUMATIC DISTAL TIP |
摘要 |
An intravascular catheter such as a guiding catheter of composite construction having a nontraumatic distal tip comprising a proximal elastomeric tubular element and a distal elastomeric tubular element formed of softer material that the proximal section. The proximal tubular section of the distal tip preferably has a radiopaque material incorporated therein to enable the distal tip to be fluoroscopically observable when in place within a patient. The shaft of the catheter, which exhibits excellent torquability and pushability, is formed with a very thin wall. The catheter shaft includes an inner tubular member of braided polymeric fibrous strands impregnated with a thermoset polyurethane and having an outer jacket or coating of thermoplastic polyurethane secured to the braided tubular member. In some embodiments it is preferred to include a lubricous liner within the braided tubular member. |
申请公布号 |
CA2070452(C) |
申请公布日期 |
2000.03.14 |
申请号 |
CA19922070452 |
申请日期 |
1992.06.04 |
申请人 |
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发明人 |
MACAULAY, PATRICK E.;WASICEK, LAWRENCE D.;BAYOT, ALFREDO;KLEMM, KURT |
分类号 |
A61M25/00;(IPC1-7):A61M25/01 |
主分类号 |
A61M25/00 |
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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