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:
Jun. 02, 2009
Filed:
Nov. 04, 2005
Edward Paul Harhen, Duxbury, MA (US);
Todd Fjield, Laguna Hills, CA (US);
Patrick David Lopath, Stamford, CT (US);
David E. Acker, St. James, NY (US);
Edward Paul Harhen, Duxbury, MA (US);
Todd Fjield, Laguna Hills, CA (US);
Patrick David Lopath, Stamford, CT (US);
David E. Acker, St. James, NY (US);
ProRhythm, Inc., Ronkonkoma, NY (US);
Abstract
Apparatus and methods for ablating tissue surrounding a tubular anatomical structure such as the wall of a blood vessel or prostatic tissue surrounding the urethra. The apparatus includes an ultrasonic emitter such as a cylindrical emitter and an inflatable annular lens balloon surrounding the ultrasonic emitter. The lens balloon is inflated with a liquid having acoustic velocity different than that of the surrounding medium, so as to form an annular refracting surface. The acoustic energy from the emitter is focused into an annular focal region.