公开(公告)号：US11219718B2

公开(公告)日：2022-01-11

申请号：US16497492

申请日：2018-03-13

Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED ,  ARTE CORPORATION

Inventor： Atsushi Kanazawa ,  Kiyotaka Kamata ,  Akihiko Ono ,  Tomoyuki Manoshiro ,  Jiichi Arai ,  Naoki Choda

IPC: A61M5/31 ,  A61M5/315

Abstract: The present invention improves the feeling in use when a finger is hooked on a finger grip. This syringe is provided with a cylinder 22, a syringe needle 24, a finger grip 30, and a plunger rod 32. The finger grip 30 is provided with a cylindrical portion and a pair of finger hook portions. The finger hook portion has an inclined curved surface 70 and an end-side curved surface 72. The inclined curved surface 70 is disposed on a side, of a side surface of the finger hook portion, connected to the cylinder 22. In the inclined curved surface 70, 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 surface 72 is disposed at the boundary between the end of the finger hook portion and the inclined curved surface 70. The end-side curved surface 72 extends along the boundary.