Indwelling catheters
Patent 4501580 Issued on February 26, 1985. Estimated Expiration Date: 
January 21, 2003. 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.
January 21, 2003. 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 1045326 2257369 3394705 3815608 Prosthetic catheter Anti-vomiting, anti-aspirating oral-nasal gastric tube Urethral catheter Patent #: 4211233 InventorApplicationNo. 06/459837 filed on 01/21/1983US Classes:604/43, Body inserted conduit with separate ingress and egress passages604/102.01Having aperture in conduit proximal of inflated meansExaminersPrimary: Truluck, Dalton L.Attorney, Agent or FirmInternational ClassA61M 25/00 (20060101)AbstractIndwelling catheters provided in their insert end with an inflatable balloon, having at least one longitudinal channel, serpentine or otherwise, on it's outside surface terminating at the insert end of the catheter spaced from the inflatable balloon. The channel has a series of ports opening into a passageway in the catheter wall that terminates at the outer end of the catheter in a fluid inlet. The fluid is delivered into the passageway through said inlet and flows through the ports and into the channel so as to irrigate or medicate the urethral canal and the outside surface of the catheter. | |
