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:
Feb. 14, 1978
Filed:
Apr. 05, 1976
William E Bradley, Minneapolis, MN (US);
Geoffrey S Gates, Minneapolis, MN (US);
American Medical Systems, Inc., St. Louis Park, MN (US);
Abstract
A catheter for performing urethral profilometry, and a method of making same, are provided herein. The catheter preferably comprises an elongated tubular body portion provided with a plurality of circumferentially spaced apart orifices for discharging fluid and a pair of flushly mounted flexible electrodes for sensing urethral electrical signals. A pair of electrical conductors connected to the electrodes deliver urethral signals externally of the catheter. A method disclosed herein for providing a catheter with flexible electrodes comprises the steps of mixing powdered silver with a medical grade adhesive and a solvent, and afterwards forming the electrodes in the desired shape. Evaporation of the solvent concurrently with curing of the adhesive yields a permanently affixed flexible electrode. A method of providing fluid discharge orifices disclosed herein comprises the steps of placing the catheter coaxially within a rigid tool having a plurality of predrilled orifices provided therein, soaking the catheter in xylene or the like, and then drilling the catheter through the predrilled orifices to form fluid discharge holes of constant predetermined diameter.