Title:
CATHETER SYSTEM FOR PERFORMING A SINGLE STEP CRYOABLATION
Document Type and Number:
WIPO Patent Application WO2006009589
Kind Code:
A3
Abstract:
A system for cryoablating target tissue at a treatment site includes a cryo-element that is attached to the distal end of a cryo-catheter. An annular shaped balloon is attached to a cylindrical shaped sleeve and the sleeve is slideably mounted over the cryo-catheter. The distal end of a fill tube is attached to the sleeve to place the lumen of the fill tube in fluid communication with the balloon. In use, the cryo-element is first positioned at the treatment site using the cryo-catheter. Next, the fill tube is used to advance the balloon and sleeve over the cryo-catheter until the balloon is interposed between the cryo-element and the target tissue. Saline solution is then pumped through the fill tube to expand the balloon between the cryo-element and target tissue. A refrigerant is then expanded in the cryo-element which freezes the saline solution and cryoablates the target tissue.
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Inventors:
LENTZ DAVID J (US)
Application Number:
PCT/US2005/006601
Publication Date:
November 16, 2006
Filing Date:
March 01, 2005
Export Citation:
Assignee:
CRYOCOR INC (US)
International Classes:
A61B18/18; A61B18/02; A61B18/24; A61M25/00; A61B17/22; A61B18/00
Foreign References:
| US6383181B1 | 2002-05-07 | |||
| US5868735A | 1999-02-09 | |||
| US5971979A | 1999-10-26 |
Other References:
See also references of EP 1768592A4
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