发明名称 |
Delivery of a low volume liquid bolus |
摘要 |
A catheter system includes a catheter having a proximal end, a distal end, and a lumen extending therein. An administering portion is disposed at the distal end of the catheter and is configured to administer a bolus of liquid in response to positive pressure in a distal portion of the lumen. The catheter system of the present invention has a dead space of less 0.32 cc and preferably less than 0.15 cc in which residual therapeutic agents remain after delivery. The present invention also includes a method of administering a liquid to a treatment site. The distal end of the catheter is transluminally positioned proximate the treatment site. The catheter is charged by placing a bolus of the liquid in the lumen A positive pressure is created to drive the bolus to the administering tip to express the bolus from the distal end of the catheter.
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申请公布号 |
US2004243098(A1) |
申请公布日期 |
2004.12.02 |
申请号 |
US20040882397 |
申请日期 |
2004.07.02 |
申请人 |
MICKLEY TIMOTHY J.;HEKTNER THOMAS R.;ELLIS LOUIS;HENDRICKSON GARY L. |
发明人 |
MICKLEY TIMOTHY J.;HEKTNER THOMAS R.;ELLIS LOUIS;HENDRICKSON GARY L. |
分类号 |
A61M25/00;A61F2/958;A61M5/00;A61M29/02;(IPC1-7):A61M31/00 |
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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