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:
Nov. 29, 1988
Filed:
Sep. 01, 1987
Jay Goldberg, Northbrook, IL (US);
Medical Engineering Corporation, Racine, WI (US);
Abstract
A dual wire guidewire system for inserting a ureteral stent with a proximal end with a reduced opening into the ureter of a patient comprises an elongated tubular pusher wire, an elongated guidewire and a retaining member. The pusher wire is open at both ends and sized to fit in the lumen of the stent. The leading end of the pusher wire has a diameter larger than the reduced opening in the stent. The guidewire is sized to fit within the lumen of pusher wire and has a leading end which is smaller in diameter than the reduced opening in the stent. The retaining member keeps the leading end of the guidewire from leaving the lumen of the pusher wire. When an obstruction is encountered in the ureter, the retaining member is disengaged and the leading end of the guidewire is passed through the reduced opening and maneuvered past the obstruction. The pusher wire and stent then can be advanced over the guidewire past the obstruction.