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. 18, 1992
Filed:
May. 31, 1990
Stephen B Leighton, Maplewood, NJ (US);
Abstract
A prosthetic urethral sphincter valve with an integral spring valve member which comprises an elastic valve element having an upper portion which defines a central fluid passage and a lower diaphragm portion which includes a rolling diaphragm. The prosthetic urethral sphincter valve is placed totally within a patient's urethra. The lower diaphragm portion of the elastic valve element includes a tapered wall structure which provides for a spring action which demonstrates a non-linear force curve. The central fluid passage assumes a kinked or closed position, or a straighten or open position depending upon the position of the rolling diaphragm. Applied bladder pressure effects the position of the rolling diaphragm and thus the opening and closing of the central fluid passage.