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United States of America Patent
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Issued Date -
Jul 2, 2009
app pub date -
Dec 28, 2007
filing date -
Dec 28, 2007
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Abstract
A method of locating and ablating a target tissue is described. The method includes providing a catheter that has at least one light guide, where the light guide is adaptable to receive light from a light source. A distal portion of the catheter is advanced through vasculature of a patient towards the target tissue. A nanoparticle dye is introduced into the patient, where the nanoparticles selectively bind to the target tissue. The target tissue is mapped by detecting fluorescence light emitted from the nanoparticle dye bound to the tissue. The distal tip of the catheter is positioned adjacent to the mapped target tissue, and a light pulse is transmitted through the light guide to ablate at least a portion of the target tissue.
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