Safe needle system for collecting fluids
Patent 4838863 Issued on June 13, 1989. Estimated Expiration Date: 
September 21, 2007. 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.
September 21, 2007. 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 3306290 Syringe for use in hypodermic biopsy, featuring automatic plunger-return Dental syringe having an automatically retractable needle Patent #: 4767413 InventorsApplicationNo. 07/099013 filed on 09/21/1987US Classes:604/110, Having means for preventing reuse of device604/195, Portion of body entering conduit stored in material receiving syringe reservoir604/198Cover or protector for body entering conduit movable axially relative to one anotherExaminersPrimary: Yasko, John D.International ClassesA61M 5/32 (20060101)A61M 5/31 (20060101) AbstractA hypodermic syringe having a cylindrical outer body adapted to accept a smaller fluid storage vial within the inner walls thereof and having a removable cap on one end of said cylinder for providing access to insert and remove the vial with a spring loaded double headed needle assembly integrated into the other end thereof and held in place by a retainer until the storage has been punctured by one and of the needle, the vial filled and removed and the needle assembly retracted into the space vacated by the vial.Field of SearchHaving means for preventing reuse of deviceHaving means for indicating device is defective , used, or tampered with Portion of body entering conduit stored in material receiving syringe reservoir And extended therefrom by piston when syringe is used Cover or protector for body entering conduit movable axially relative to one another Material conduit forced into body by spring Common cover or protector for body entering conduit and material syringe reservoir Spring drives piston Spring triggered by skin contacting means Conduit impelled by spring | |
