Medical needle device with a protective screen against accidental punctures prevention.

摘要

Medical needle device having a shield for reduction of injury to needlesticks, comprising: the shield for reduction of injury to needlesticks, including as a main body a tube of substantially cylindrical shield; a central axis inserted into the shield tube so that the hub is movable in an axial direction and whose rear end portion can be connected to an infusion tube; and a needle mounted on a front end portion of the central axis, wherein the tip of the needle can be stored in an inner bore of the shield tube, wherein the hub has a protrusion on part of an outer peripheral surface in a front end portion thereof, with a height of the protrusion such that the protrusion protrudes beyond an inner diameter of the shield tube, and is formed an access slot in an inner surface of the shield tube, so that extends from a front end to near a rear end of the shield tube, the slot having dimensions access such that the projection on the front end portion of the central axis can be adjusted in a front end portion of the access slot in a state in which the protrusion is exposed from the front end of the shield tube, the hub can rotate relative to the tube Protective screen in a rotational position of the protrusion which is not facing a front end of the gate groove, a position of the central axis so as not to move toward a rear end side of the shield tube is limited due the engagement of the protrusion with a front end face of the shield tube, and a rotational position of the protrusion which faces the front end of the gate groove, the protrusion can slide into the gate groove.