Jms Co., Ltd.

Raita Uematsu

Ryoji Fujii

Tadashi Okiyama

Kenji Sawa

Takehiko Yuki

Toru Ito

Naotsugu Ito

The medical needle device includes: a shieldincluding a substantially cylindrical portion; a tube; a first hubthat is inserted into an inner bore of the shield movably in an axial direction. The rear end of the first hubis connected with the tube. A rigid needleis fixed to a front end portion of the first hub; and a hub movement controlling memberthat is attached to the shield detachably. The hub movement controlling memberincludes: a stopper portionthat can be inserted from the rear end side of the shield into an inner bore of the shield exsertably.

Winged medical needle device

An injection device includes: a syringeincluding a barrelincluding a cylindrical barrel bodyand a nozzleprovided at a front end of the barrel body so as to be communicated with the barrel body, a gasketslidable in the barrel, and a plungerconnected with the gasket and capable of being placed into and removed from the barrel through a rear end opening of the barrel; a finger flangeprovided in the vicinity of the rear end portion of the barrel body and molded integrally with or separately from the barrel body; and a holderhaving an inner diameter that allows the barrel to be inserted in a bore of the holder, attached to the barrel, and including a spiral protrusionformed on the inner surface of a portion of the holder disposed around the nozzle.

Injection device

The present invention aims at offering: a syringe connectable to a port in a fixed manner as well as capable of demonstrating high operational performance even in the case of direct connection where a connector is not used; a connector used for the syringe; and a syringe able to attach the connector thereto. For the attainment of the above objectives, the medical syringe of the present invention is a medical syringe including a cyrindrical connection supporting member which enhances the holding force of a luer part inserted into a port when the medical syringe is connected to the port. The connection supporting member is set by sliding along the luer or a syringe body in a state of being movable between a first position near a tip of the luer and a second position away from the tip of the luer. The medical syringe is characterized in that, when the connection supporting member is moved to the second position, the tip of the luer part is exposed.

Growing community of inventors

Hiroshima, Japan

Raita Uematsu