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:
Sep. 09, 2025
Filed:
Jun. 19, 2020
Canon U.s.a., Inc., Melville, NY (US);
Christopher Douglas Brushett, Cambridge, MA (US);
Canon U.S.A., Inc., Melville, NY (US);
Abstract
Disclosed are an apparatus and method for finding a range of lumen clearance, including positioning an imaging probe in a lumen such that the probe tip is positioned to irradiate a target area; acquiring a first set of images of an inside of the lumen while performing a non-flush pullback operation with the probe; analyzing the first set of images to determine a location of the probe tip with respect to a guide catheter; calculating a range of lumen clearance based on the location; and acquiring a second set of images of the inside of the lumen while performing a flush pullback operation only within the calculated range of lumen clearance. Calculating the range of lumen clearance includes calculating a pullback distance from the target area to the distal end of the guide catheter. The method further includes calculating a volume of contrast agent for clearing the calculated pullback distance.