Manually actuated hydraulic sphincter having a mechanical actuator
Patent 4784660 Issued on November 15, 1988. Estimated Expiration Date: 
February 24, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 24, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3553967 3815576 3827439 Servo valve Low profile shunt system Artificial sphincter with inflatable cuff Cerebrospinal fluid shunt valve Fill port for an implantable dispensing system Manually actuated hydraulic sphincter Patent #: 4571749 InventorAssigneeApplicationNo. 06/831950 filed on 02/24/1986US Classes:623/23.66, Urethra600/31With fluid actuated occluding means (e.g., inflatable cuff)ExaminersPrimary: Apley, Richard J.Assistant: Isabella, David J. Attorney, Agent or FirmInternational ClassA61F 2/00 (20060101)AbstractAn implantable hydraulic urinary sphincter system is disclosed for maintaining continence in those patients unable to control or stop inadvertent urinary flow. The invented apparatus generally consists of an artificial urinary sphincter and a control means for automatically increasing or decreasing sphincter pressure with sensed bladder and/or intra-abdominal pressure. An improved mechanical actuation means is also disclosed which allows the patient to urinate. To urinate the patient presses a push button centered on a septum located on the outer wall of the subcutaneously implanted control unit. | |
