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:
Aug. 19, 2003
Filed:
Nov. 17, 2000
Applicant:
Inventors:
Beth Anne Allison, Vancouver, CA;
Philippe Maria Clotaire Margaron, Burnaby, CA;
York N. Hsiang, Vancouver, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 ; A61B 1/818 ; A61N 1/30 ;
U.S. Cl.
CPC ...
A61B 5/00 ; A61B 1/818 ; A61N 1/30 ;
Abstract
Long-term dialysis requires provision of safe and reliable vascular access, often in the form of an arteriovenous (AV) fistula. The primary cause of AV fistula loss or failure is stenosis caused by intimal hyperplasia (IH) in the graft at the venous anastomosis or the distal vein. Disclosed are methods of using photodynamic therapy (PDT) to inhibit IH in blood vessels which may also be used to inhibit IH and SMC growth at the anastomosis of an AV fistula in vivo.