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. 08, 2010
Filed:
Jul. 05, 2007
Phillip Burwell, Snohomish, WA (US);
Zihong Guo, Bellevue, WA (US);
Jennifer Kristine Matson, Renton, WA (US);
Steven Ross Daly, Sammamish, WA (US);
David B. Shine, Sammamish, WA (US);
Gary Lichttenegger, Woodinville, WA (US);
Jean Bishop, Bothell, WA (US);
Nick Yeo, Great Bookham, GB;
Hugh Narciso, Santa Barbara, CA (US);
Phillip Burwell, Snohomish, WA (US);
Zihong Guo, Bellevue, WA (US);
Jennifer Kristine Matson, Renton, WA (US);
Steven Ross Daly, Sammamish, WA (US);
David B. Shine, Sammamish, WA (US);
Gary Lichttenegger, Woodinville, WA (US);
Jean Bishop, Bothell, WA (US);
Nick Yeo, Great Bookham, GB;
Hugh Narciso, Santa Barbara, CA (US);
Light Sciences Oncology, Inc., Bellevue, WA (US);
Abstract
Light generating devices for illuminating portions of vascular tissue, to render photodynamic therapy. In one embodiment, a light source array preferably including a plurality of light emitting diodes, a focusing lens, and a light diffusing element are included in a distal end of a catheter. A balloon is optionally provided to interrupt blood flow that can block the transmission of light, and to center the apparatus in a blood vessel. Optical fibers optionally direct light from the light source to the diffusing element. The light source array can have a radial or linear configuration and can produce more than one wavelength of light for activating different photoreactive agents. Linear light source elements are particularly useful to treat elongate portions of tissue in a vessel. One embodiment intended for use with a conventional balloon catheter integrates light sources into a guidewire.