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. 09, 2013
Filed:
Oct. 26, 2009
Barry Friemel, Redmond, WA (US);
Jessica E. Parsons, Kirkland, WA (US);
Charles D. Emery, Issaquah, WA (US);
Gregory P. Darlington, Snohomish, WA (US);
Justin A. Reed, Seattle, WA (US);
Tim Etchells, Bothell, WA (US);
Barry Friemel, Redmond, WA (US);
Jessica E. Parsons, Kirkland, WA (US);
Charles D. Emery, Issaquah, WA (US);
Gregory P. Darlington, Snohomish, WA (US);
Justin A. Reed, Seattle, WA (US);
Tim Etchells, Bothell, WA (US);
Mirabilis Medica Inc., Bothell, WA (US);
Abstract
HIFU therapy to a desired tissue site is controlled based on detected changes in one or more characteristics of a received backscatter signal resulting from exposure of the tissue to HIFU or other interrogation signals. In one embodiment, the bloom of backscatter signals outward from a treatment region (e.g., towards the HIFU transducer) is detected and monitored. Once the bloom reaches a predetermined location, treatment is stopped. Other signal characteristics such as angular distribution of frequency components in the backscatter signal, changes in reflection, power required to saturate a tissue characteristic, changes in attenuation and changes in a cumulative energy distribution function of the backscatter signal that change as a result of the application of HIFU power are also used to control the delivery of HIFU signals in accordance with other embodiments of the disclosed technology.