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. 08, 2008
Filed:
Aug. 05, 2003
Steven J. Rychnovsky, Santa Barbara, CA (US);
John A. Franco, Emeryville, CA (US);
Jeffrey A. Vasek, Santa Barbara, CA (US);
C. T. Lo Blong, Lompoc, CA (US);
John S. Hill, Solvang, CA (US);
Steven J. Rychnovsky, Santa Barbara, CA (US);
John A. Franco, Emeryville, CA (US);
Jeffrey A. Vasek, Santa Barbara, CA (US);
C. T. Lo Blong, Lompoc, CA (US);
John S. Hill, Solvang, CA (US);
Other;
Abstract
The present invention provides improved light delivery catheters for use in therapeutic methods, such as PDT, that require illumination of target tissue within a blood vessel or other hollow body organ. An improved catheter includes an optical fiber that transmits light from a light source at the proximal end of the catheter shaft to a light treatment zone. An occlusion balloon on the distal end of the catheter shaft adjacent to the light treatment zone receives fluid via an inflation lumen in the catheter shaft. An infusion lumen connects with a plurality of infusion ports at the light treatment zone to deliver infusion fluid to the hollow body organ so that blood can be flushed from the region between the light treatment zone and target tissue.