发明名称 |
Cannula having constant wall thickness with increasing distal flexibility and method of making |
摘要 |
A cannula for use as for example on the inflow end of an implantable intravascular heart pump. The stiffness of the cannula is differentiated along its length, wherein its proximal end is stiffer than its distal end, while a substantially constant wall thickness is maintained along its entire length. Attached to the flexible distal end, is a rigid tip component having inlet ports and an interior surface profile that minimizes the risk of hemolysis and thrombogenisis. |
申请公布号 |
US6007478(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19970970135 |
申请日期 |
1997.11.13 |
申请人 |
IMPELLA CARDIOTECHNIK AKTIENGESELLSCHAFT |
发明人 |
SIESS, THORSTEN;REUL, HELMUT;RAU, GUENTER;HUTZENLAUB, JENS;BROWN, PETER |
分类号 |
A61B17/34;A61L31/00;A61M1/10;A61M1/12;A61M1/36;A61M25/00;(IPC1-7):A61N1/362;A61M25/01 |
主分类号 |
A61B17/34 |
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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