Abstract: Ablation and visualization systems and methods to access quality of contact between a catheter and tissue are provided. In some embodiments, a method for monitoring tissue ablation of the present disclosure comprises advancing a distal tip of an ablation catheter to a tissue in need of ablation; illuminating the tissue with UV light to excite NADH in the tissue, wherein the tissue is illuminated in a radial direction, an axial direction, or both; determining from a level of NADH fluorescence in the illuminated tissue when the distal tip of the catheter is in contact with the tissue; and delivering ablation energy to the tissue to form a lesion in the tissue.
Type:
Grant
Filed:
November 3, 2015
Date of Patent:
December 4, 2018
Assignee:
LuxCath, LLC
Inventors:
Terrance J. Ransbury, Kenneth C. Armstrong, Omar Amirana, Cinnamon Larson, James Bowen
Abstract: Systems and methods for visualizing ablated tissue are disclosed. In some embodiments, a system for imaging tissue comprising: a catheter having a distal end and a proximal end; an inflatable balloon disposed about the distal end of the catheter; and an optical housing extending from the distal end of the catheter into the balloon, the optical housing being configured to position inside the balloon a light source for illuminating a tissue outside the balloon and a camera for imaging the illuminated tissue.
Type:
Grant
Filed:
April 17, 2015
Date of Patent:
September 18, 2018
Assignees:
The George Washington University, LuxCath, LLC
Inventors:
Omar Amirana, Kenneth C. Armstrong, Matthew W. Kay, Marco A. Mercader, Terrance J. Ransbury, Narine Sarvazyan
Abstract: Systems and methods for visualizing ablated tissue are disclosed. In some embodiments, a system for imaging tissue comprising: a catheter having a distal end and a proximal end; an inflatable balloon disposed about the distal end of the catheter; and an optical housing extending from the distal end of the catheter into the balloon, the optical housing being configured to position inside the balloon a light source for illuminating a tissue outside the balloon and a camera for imaging the illuminated tissue.
Type:
Grant
Filed:
September 22, 2012
Date of Patent:
July 21, 2015
Assignees:
The George Washington University, LuxCath, LLC
Inventors:
Omar Amirana, Kenneth C. Armstrong, Matthew W. Kay, Marco A. Mercader, Terrance J. Ransbury, Narine Sarvazyan
Abstract: Systems and methods for visualizing ablated tissue are disclosed. In some embodiments, a system for imaging tissue comprising: a catheter having a distal end and a proximal end; an inflatable balloon disposed about the distal end of the catheter; and an optical housing extending from the distal end of the catheter into the balloon, the optical housing being configured to position inside the balloon a light source for illuminating a tissue outside the balloon and a camera for imaging the illuminated tissue.
Type:
Application
Filed:
September 22, 2012
Publication date:
March 28, 2013
Applicants:
LUXCATH, LLC, THE GEORGE WASHINGTON UNIVERSITY
Inventors:
The George Washington University, LuxCath, LLC