发明名称 |
CRYOABLATION CATHETER AND METHOD OF PERFORMING CRYOABLATION |
摘要 |
A method and apparatus is provided for cryogenically ablating a predetermined portion of tissue in the body of a patient. Cryoablation is accomplished by a cryoblation catheter having a hollow shaft insertable into the blood vessel of a patient. The shaft has a closed tip portion and a fluid flow passage for directing a flow of cryogenic fluid to the tip. Cryogenic cooling is effected by a liquid-to-gas fluid phase change adjacent the catheter tip. Electrical signal activity may be monitored by an electrode formed integral with the tip to confirm treatment of the paper tissue site. |
申请公布号 |
AU4342689(A) |
申请公布日期 |
1990.04.18 |
申请号 |
AU19890043426 |
申请日期 |
1989.09.20 |
申请人 |
BRIGHAM & WOMEN'S HOSPITAL |
发明人 |
PETER L. FRIEDMAN;PAUL J. WANG;ERNEST G. CRAVALHO |
分类号 |
A61B17/00;A61B18/02 |
主分类号 |
A61B17/00 |
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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