Takeda Pharmaceutical Company Limited

Arte Corporation

Kiyotaka Kamata

Akihiko Ono

Jiichi Arai

Atsushi Kanazawa

Naoki Choda

Tomoyuki Manoshiro

The present invention improves the feeling in use when a finger is hooked on a finger grip. This syringe is provided with a cylinder, a syringe needle, a finger grip, and a plunger rod. The finger gripis provided with a cylindrical portion and a pair of finger hook portions. The finger hook portion has an inclined curved surfaceand an end-side curved surface. The inclined curved surfaceis disposed on a side, of a side surface of the finger hook portion, connected to the cylinder. In the inclined curved surface, the inclination of a base-side region with respect to the center axis of the cylindrical portion is gentler than the inclination of an end-side region with respect to the center axis of the cylindrical portion. The end-side curved surfaceis disposed at the boundary between the end of the finger hook portion and the inclined curved surface. The end-side curved surfaceextends along the boundary.

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Takahagi, Japan

Kiyotaka Kamata