Abstract: A medication administration system is provided whereby a user can administer medication via intravenous, intramuscular, or subcutaneous routes from a single device in a safe and controlled manner, and without the danger of a needle-stick injury. The system essentially consists of a syringe-like device that is a closed system having an aseptic fluid path.

Abstract: A medication administration system is provided whereby a user can administer medication via intravenous, intramuscular, or subcutaneous routes from a single device in a safe and controlled manner, and without the danger of a needle-stick injury. The system essentially consists of a syringe-like device that is a closed system having an aseptic fluid path.

Abstract: A self sheathing safety needle comprising a needle assembly (50), a needle guard (52), and an outer casing (54) is shown in exploded relation in FIG. 1 . Needle guard (52) has a locking tab (100) mounted on the free end of a spring finger or lever (98). Locking tab (100) is received within an internal track on outer casing (54) which has a cam lug (148) for effecting movement of locking tab (100) between a locked extended position of the needle guard (52) and an unlocked extended position of the needle guard (52) to permit retraction of the needle guard (52). Casing (54) is mounted for limited rotation on bearings (60, 62) on the hub (86) of the needle assembly (50) to effect movement of the locking tab (100) to an unlocked position. Stops (76, 78, 80, 82) on bearings (60, 62) limit relative rotation of casing (54) between locked and unlocked positions of needle guard (52) and locking tab (100).

Abstract: The invention relates to a self-locking syringe holder adapted for use with conventional hypodermic syringes and designed to prevent accidental puncturing of the medical attendant by an infected syringe needle. The holder has a hollow casing which receives the syringe barrel therein and which is provided with a pair of grooves within which locking tabs of a needle guard can move. Mounted within the casing is a compressible tension spring which continuously urges the needle guard into a fully extended position. To prevent misalignment of a needle guard with the casing, the needle guard is formed with a pair of longitudinal projections extending outwardly from an exterior surface of the needle guard and engageable with their respective cutout grooves formed in an end plate of a proximal end of the casing.