The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2002
Filed:
May. 06, 1999
Stuart D. Edwards, Portola Valley, CA (US);
Novasys Medical, Inc., Newark, CA (US);
Abstract
Apparatus for creating a controlled pattern of ablation throughout the interior of an organ or body cavity while minimizing thermal damage to collateral tissue includes a microporous balloon mounted on a catheter. The balloon, bearing electrodes embedded in the surface, is inserted into the target body region and inflated, whereupon the electrodes come into contact with the interior of the targeted organ. Because of its microporous nature, fluids for cooling or various therapeutic purposes may pass through the surface of the balloon to the target site. Sensors monitor conditions such as temperature and impedance at the site, providing required feedback for delivery of RF energy for ablation, and administration of cooling and hydrating fluids. A second balloon or other means isolates the treatment area and controls the flow and accumulation of body fluids and treatment fluids minimizing adverse treatment effects from fluid accumulations, and anchoring the catheter in place.