发明名称 |
Catheter having improved proximal shaft design |
摘要 |
A catheter and subassemblies for catheters having improved proximal regions, and mid-regions including hypotube having distally increasing flexibility. One catheter has a kink resistant proximal shaft not including hypotube and including an outer tube disposed over a braid disposed over an inner tube. One catheter includes a proximal shaft having a 12-inch long strain relief disposed about a tubular region formed of hypotube. Another catheter includes a proximal hypotube shaft having a set curve imparted through bending and annealing, resulting in a catheter hypotube shaft having reduced spring and decreased kink radius. A catheter subassembly includes a hypotube shaft having a helical cut into the hypotube wall to increase flexibility over the length of the cut. One helical cut extends through the hypotube wall and includes a polymeric sleeve thereover to allow the cut hypotube to function as an inflation fluid delivery tube.
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申请公布号 |
US6387075(B1) |
申请公布日期 |
2002.05.14 |
申请号 |
US20000605458 |
申请日期 |
2000.06.28 |
申请人 |
SCIMED LIFE SYSTEMS, INC. |
发明人 |
STIVLAND TIMOTHY M.;KHOURY ELIAS A. |
分类号 |
A61M25/00;A61M25/16;A61M29/02;(IPC1-7):A61M29/00 |
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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