发明授权
US6007478A Cannula having constant wall thickness with increasing distal
flexibility and method of making
失效
插管具有恒定的壁厚，随着远端的灵活性和制作方法的增加
- 专利标题： Cannula having constant wall thickness with increasing distal flexibility and method of making
- 专利标题（中）： 插管具有恒定的壁厚，随着远端的灵活性和制作方法的增加
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申请号： US970135申请日： 1997-11-13
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公开(公告)号： US6007478A公开(公告)日： 1999-12-28
- 发明人: Thorsten Siess , Helmut Reul , Gunter Rau , Jens Hutzenlaub , Peter Brown
- 申请人： Thorsten Siess , Helmut Reul , Gunter Rau , Jens Hutzenlaub , Peter Brown
- 申请人地址： DEX Aachen
- 专利权人： Impella Cardiotechnik Aktiengesellschaft
- 当前专利权人： Impella Cardiotechnik Aktiengesellschaft
- 当前专利权人地址： DEX Aachen
- 主分类号： A61B17/34
- IPC分类号： A61B17/34 ; A61L31/00 ; A61M1/10 ; A61M1/12 ; A61M1/36 ; A61M25/00 ; A61N1/362 ; A61M25/01
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.
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