发明名称 |
Methods and Apparatus for Inserting Multi-Lumen Split-Tip Catheters Into a Blood Vessel |
摘要 |
Methods and apparatus are disclosed for inserting flexible, multi-lumen catheters into blood vessels, and in particular, for inserting flexible, split-tip catheters into blood vessels. The invention accomplishes these objects by temporarily stiffening each catheter lumen and tip independently through use of intra-catheter stiffener elements disposed within the catheter lumens. This provides means for advancing the catheter/stiffeners assembly through a subcutaneous tunnel, and over a plurality of guidewires until a distal tip of the catheter is at a desired position within the vessel. The intra-catheter stiffener elements are sufficiently stiffening to allow advancing the catheter over guidewires, but sufficiently flexible to allow bending and looping of the catheter for proper placement within the vessel. |
申请公布号 |
US2012203206(A1) |
申请公布日期 |
2012.08.09 |
申请号 |
US201213445713 |
申请日期 |
2012.04.12 |
申请人 |
NIMKAR SHEKHAR;ALBRECHT STEPHEN E.;ANAND PARAMJITH;TOBIN ERIC;BARD ACCESS SYSTEMS, INC. |
发明人 |
NIMKAR SHEKHAR;ALBRECHT STEPHEN E.;ANAND PARAMJITH;TOBIN ERIC |
分类号 |
A61M25/09;A61B5/00;A61B17/34;A61M25/00;A61M25/01;A61M31/00 |
主分类号 |
A61M25/09 |
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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