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. 19, 1991
Filed:
Jul. 21, 1989
Mark Polyak, Minnetonka, MN (US);
American Medical Systems, Inc., Minnetonka, MN (US);
Abstract
An implantable artificial sphincter system for reversibly occluding a body passageway, which system includes occlusion means, pump means, and the unique feature of a fluid capacitor disposed on a control assembly for the system, which is capable of increasing volume under fluid pressure. The fluid capacitor is connected with the occlusion means in such fashion that said occlusion means will remain substantially inflated during short, but significant, pressure increases, but will at least partially deflate upon the advent of prolonged but moderate pressure increases on the body passageway. While in its preferred embodiment no other fluid containing component is needed, if desired a volume compensator can also be included in the system. A valve preferably of the magnetic type can also be included for activating or deactivating the system.