NEEDLE HUB AND INJECTOR USING THE SAME

Abstract: in order to provide a needle hub that can be coupled to various syringes with a small dead space, there is provided a needle hub, which is formed of a thermoplastic resin having a tensile modulus of elasticity of 1400 mpa or more and 2500 mpa or less, and has a recessed portion having a conical trapezoidal shape to be fitted to a male luer-slip connector formed of polypropylene as defined in iso 80369-7: 2016, and in which a needle is provided on a front side of the recessed portion, wherein the recessed portion has a depth l of 7.384 mm or more and 7.496 mm or less, an inner diameter d of an opening portion of 4.316 mm or more and 4.376 mm or less, and an inner diameter narrows from the opening portion at an inclination of 6% with respect to the depth.

Inventor(s): Ken Kawashima, Hirotsugu KOBAYASHI, Ryo SHIBATA, Toru FUJISAWA

CPC Classification: A61M5/3293 (DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals ; means for inserting tampons ; devices for administering food or medicines orally ; containers for collecting, storing or administering blood or medical fluids ); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery ; chemical aspects of surgical articles ); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents )})

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