Medical prosthetic pull valve and system for using same
Patent 4224934 Issued on September 30, 1980. Estimated Expiration Date: 
April 11, 1999. 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.
April 11, 1999. 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 1880948 2623787 2999499 3530928 3570484 3685795 Manually operable self-closing valve Penile prosthesis for the management of erectile impotence Patent #: 4009711 InventorsAssigneeApplicationNo. 06/028979 filed on 04/11/1979US Classes:600/40ImplantedExaminersPrimary: Trapp, Lawrence W.Attorney, Agent or FirmInternational ClassesA61F 2/00 (20060101)A61F 2/26 (20060101) AbstractA prosthetic check valve which allows unrestricted fluid flow in a forward direction and is capable of being repeatedly pulled open to allow reverse fluid flow. The valve comprises a valve body having an extensible section which houses a valve seat and a valve support. A resilient member is attached to the valve support and resiliently supports a valve member so as to force the valve member towards the valve seat. When the extensible section is contracted, the valve acts as a check valve to allow fluid flow only in a forward direction from a supply tube, through the valve support and valve seat, to a demand tube. When the extensible section is extended, fluid is allowed to flow both in the aforesaid forward direction and in a reverse direction through the valve. | |
