发明名称 |
SYSTEMS AND METHODS FOR DELIVERING A PROBE INTO TISSUE |
摘要 |
Apparatus and methods are provided for placing an introducer wheath into a subcutaneous tissue region, such as a prostate, e.g., to facilitate insertion of a cryogenic probe. In one embodiment, a dilation apparatus is provided that includes an introducer sheath containing a dilator that, in turn, contains a stylet. A pointed tip of the stylet is inserted into a patient's skin and the dilator is advanced over the inserted stylet to dilate surrounding tissue. The introducer sheath is then advanced over the dilator through the tissue to provide access to a target tissue region, such as the prostate. The stylet and dilator are removed from the introducer sheath, leaving the introducer sheath in place. A cryogenic probe may be inserted into the introducer sheath, and may be coupled to a cryosurgical system, e.g., to ablate or otherwise treat the target tissue region. |
申请公布号 |
WO02053205(A3) |
申请公布日期 |
2003.01.03 |
申请号 |
WO2001US49190 |
申请日期 |
2001.12.18 |
申请人 |
ENDOCARE, INC.;MIKUS, PAUL, W.;DAMASCO, SANFORD;CHINN, DOUGLAS, OWEN;KELLY, GREGORY, LEE |
发明人 |
MIKUS, PAUL, W.;DAMASCO, SANFORD;CHINN, DOUGLAS, OWEN;KELLY, GREGORY, LEE |
分类号 |
A61B17/00;A61B17/34;A61B18/02;A61B19/00 |
主分类号 |
A61B17/00 |
代理机构 |
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主权项 |
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