Patent ID: 7338474

Claim:
A needle head assembly for use with an ISO luer lock or luer slip syringe, said needle head assembly having a longitudinal center axis comprising: a luer needle housing having a plunger end and a needle end and a pair of opposing slots located at the needle end thereof; a plunger axially movable relative to the upper end of said luer needle housing; a needle holder assembly in the needle end of said needle housing, said holder assembly including a bridge fixed in the needle end of said needle housing; said bridge including a needle holder that has portions extending in opposite directions from said bridge; a diaphragm with a center aperture sleeved over one of said portions of said needle holder which faces the plunger end of said needle housing; said needle holder having a center passage which permits a needle to be inserted and secured therein at the time of assembly; said one portion of said needle holder extending towards the plunger end of said needle housing thereby permitting different gauges of needles to be used with only one size of said diaphragm; an actuator having an annular hub with a hollow sheath at one end and a pair of protruding legs at the other end; said diaphragm having a hollow cavity located between the outer diameter wall of the diaphragm and the inner wall of the diaphragm for receiving said protruding legs of said actuator; and said actuator being located in the needle end of said needle housing where said legs surround said bridge and needle holder and with outer portions of said legs extending through the opposing slots provided in said luer needle housing.