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.

Date of Patent:
Oct. 13, 2015

Filed:

May. 14, 2009
Applicants:

N. Parker Willis, Atherton, CA (US);

Zachary J. Malchano, San Francisco, CA (US);

Chris A. Rothe, San Mateo, CA (US);

Vahid Saadat, Atherton, CA (US);

Ruey-feng Peh, Mountain View, CA (US);

David Miller, Cupertino, CA (US);

Edmund Tam, Mountain View, CA (US);

Inventors:

N. Parker Willis, Atherton, CA (US);

Zachary J. Malchano, San Francisco, CA (US);

Chris A. Rothe, San Mateo, CA (US);

Vahid Saadat, Atherton, CA (US);

Ruey-Feng Peh, Mountain View, CA (US);

David Miller, Cupertino, CA (US);

Edmund Tam, Mountain View, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61B 1/00 (2006.01); A61B 1/012 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01);
U.S. Cl.
CPC ...
A61B 18/1492 (2013.01); A61B 1/00089 (2013.01); A61B 1/012 (2013.01); A61B 2017/00106 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00809 (2013.01); A61B 2018/1472 (2013.01); A61B 2218/002 (2013.01);
Abstract

Visual electrode ablation systems are described herein which include a deployment catheter and an attached imaging hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. An electric current may be passed through the fluid such that it passes directly to the tissue region being imaged and the electrical energy is conducted through the fluid without the need for a separate ablation probe or instrument to ablate the tissue being viewed.


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