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:
Mar. 18, 2008
Filed:
Sep. 28, 2002
Robert M. Pearson, San Jose, CA (US);
Steven A. Daniel, Fremont, CA (US);
Daniel J. Balbierz, Redwood City, CA (US);
Theodore C. Johnson, Ann Arbor, MI (US);
Zia Yassinzadeh, San Jose, CA (US);
Robert M. Pearson, San Jose, CA (US);
Steven A. Daniel, Fremont, CA (US);
Daniel J. Balbierz, Redwood City, CA (US);
Theodore C. Johnson, Ann Arbor, MI (US);
Zia Yassinzadeh, San Jose, CA (US);
Angiodynamics, Inc., Queensbury, NY (US);
Abstract
A method and apparatus for carrying our thermal ablation of target tissue is disclosed. The apparatus includes an RF ablation device having a multi-electrode electrode assembly designed to be deployed in target tissue, defining a selected-volume tissue region to be ablated, and having infusion channels for infusing a liquid into the target tissue during the ablation process. A control unit in the apparatus is operably connected to an RF energy source, for controlling the RF power level supplied to the electrodes, and to an infusion device, for controlling the rate of infusion of a liquid through the device into the tissue. During both electrode deployment and tissue ablation, impedance and or temperature measurements made within the tissue are used to control the RF source and infusion device, for optimizing the time and extent of tissue ablation.