Takeda Pharmaceutical Company Limited

Arte Corporation

Tomoyuki Manoshiro

Yutaka Tanoue

Yumiko Ishii

Akihiko Ono

Jiichi Arai

Yoshihiro Omachi

Atsushi Kanazawa

Naoki Choda

Kiyotaka Kamata

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.

Syringe

Growing community of inventors

Fujisawa, Japan

Tomoyuki Manoshiro