Shielded needle
Patent 4573976 Issued on March 4, 1986. Estimated Expiration Date: 
May 24, 2004. 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.
May 24, 2004. 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 2925083 3780734 3890971 Shielded hypodermic syringe Patent #: 4425120 InventorsAssigneeApplicationNo. 06/613460 filed on 05/24/1984US Classes:604/198, Cover or protector for body entering conduit movable axially relative to one another604/263Removable cover or protector for body inserted conduitExaminersPrimary: Pellegrino, Stephen C.Attorney, Agent or FirmInternational ClassA61M 5/32 (20060101)AbstractAn apparatus for injecting a substance into a human or animal comprising a body adapted to have the substance to be injected pass therethrough, a needle mounted on the body and a needle guard mounted on the body between an extended position in which the guard obstructs access to the point of the needle and a retracted position in which the guard does not materially obstruct access to the point of the needle. The guard is releasably retained in the retracted position, and interlocking members on the body and the guard are responsive to generally axial movement of the guard to the extended position for interlocking to substantially prevent movement of the guard back toward the retracted position.Field of SearchCover or protector for body entering conduit movable axially relative to one anotherCommon cover or protector for body entering conduit and material syringe reservoir Having cover or protector for body entering conduit Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Removable cover or protector for body inserted conduit Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct | |
