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. 12, 2000
Filed:
Nov. 22, 1995
David J Walsh, Waterdown, CA;
Walsh Medical Devices Inc., Oakville, CA;
Abstract
The invention provides a probe set having at least one probe of a light wire which can be resiliently deflected to pass from the nasolacrimal duct to the nasal inferior meatus. The probe has an enlarged and rounded distal end portion to limit the possibility of damage to tissue when the probe is inserted. A very flexible tube of minimal rigidity is engaged over a proximal end of the probe and a heat shrunk sleeve is attached to join the tube to the probe. Preferably the sleeve has a main portion containing a first end portion containing part of the probe adjacent the tube, a second end portion containing a part of the tube adjacent said end of the probe, and a main portion containing the ends of the probe and the tube. The sleeve applies a compressive radial pressure to attach the tube to the probe and defines a transition portion between the first end portion and the main portion of the sleeve to minimise the possibility of snagging as the probe set is advanced into the lacrimal duct. The probe set preferably includes a second probe at the other end of the tube.