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:
Apr. 15, 1997
Filed:
Apr. 20, 1995
Curtis A Amplatz, St. Paul, MN (US);
Christopher H Porter, Woodinville, WA (US);
Mark A Rydell, Golden Valley, MN (US);
AngioMedics II Incorporated, Minneapolis, MN (US);
Abstract
A surgical instrument for treating a blood vessel wall following percutaneous transluminal coronary angioplasty (PTCA) includes an optical system for transmitting radiant energy, preferably UV light energy, from a laser source to the distal end portion a PTCA catheter and causing the radiant energy to exit the catheter in a relatively narrow radial band. A microprocessor-controlled stepping motor is used to longitudinally reposition the band along the length of the balloon of the PTCA catheter to thereby expose endothelial tissue spanned by the balloon to radiation for the purpose of inhibiting smooth muscle proliferation reducing incidences of restenosis.