发明名称 |
SYSTEMS AND METHODS FOR DETECTING TISSUE CONTACT AND NEEDLE PENETRATION DEPTH USING STATIC FLUID PRESSURE MEASUREMENTS |
摘要 |
<p>Systems and methods for determining tissue contact and penetration depth are provided. In one aspect, the system includes a needle and a pressure measurement assembly. The needle, in one exemplary embodiment, includes a first end and a second end with at least one aperture located a predetermined distance from the first end. The fluid pressure measurement assembly is connected with a portion of the needle to measure pressure of fluid dispensed in the needle. The fluid pressure measurement assembly measures a first pressure of the fluid, a second pressure when the needle contacts tissue and a third pressure when the needle penetrates the tissue and the aperture becomes occluded.</p> |
申请公布号 |
WO2005025652(A1) |
申请公布日期 |
2005.03.24 |
申请号 |
WO2004US27961 |
申请日期 |
2004.08.26 |
申请人 |
ADVANCED CARDIOVASCULAR SYSTEMS, INC.;BEYERLEIN, DAGMAR |
发明人 |
BEYERLEIN, DAGMAR |
分类号 |
A61B5/0215;A61B5/03;A61M25/00;(IPC1-7):A61M5/46 |
主分类号 |
A61B5/0215 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|