Anti backflow injection device
Patent 4121585 Issued on October 24, 1978. Estimated Expiration Date: 
January 24, 1997. 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 24, 1997. 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 2656835 2955595 3332418 3861388 Injection site Patent #: 4048995 InventorApplicationNo. 05/761989 filed on 01/24/1977US Classes:604/86Septum pierced by conduitExaminersPrimary: Truluck, Dalton L.Attorney, Agent or FirmInternational ClassesA61M 39/02 (20060101)A61M 39/04 (20060101) AbstractDisclosed is an injection device for use in an IV administration set. The injection device is in the form of a Y-connector, wherein the injection port on one limb of the Y is equipped with two spaced apart piercable diaphragms. The first serves to support one or more syringes, while the second prevents the backflow of parenteral solution into the syringe. | |
