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:
Oct. 02, 1984
Filed:
Feb. 23, 1983
Claude E Petruzzi, Bronxville, NY (US);
American Hospital Supply Corporation, Evanston, IL (US);
Abstract
A surgical instrument is described for use with a flexible endoscope. The instrument includes a tubular member such as a catheter, in which a surgical tool is placed. The tool is formed of a working end and a control wire connected thereto and formed of a helically twisted flat ribbon sized to slidingly fit within the lumen of the tubular member. With a helically twisted control wire, the instrument may be bent and flexed in any plane without breakage, yet preserving accurate axial positional control substantially without longitudinal backlash. A distal end of the tubular member has a predetermined bend, with a channel cut therein in a manner selected to enable the working end of the tool, such as a knife, to be automatically moved into the channel and thus reliably extended from a side of the distal end of the catheter. A manipulator is used at the proximal end of the endoscope to precisely control the position of the working end of the surgical tool.