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.

公开(公告)号：US09333299B2

公开(公告)日：2016-05-10

申请号：US14180353

申请日：2014-02-13

Applicant: ARTE CORPORATION

Inventor： Atsushi Kanazawa ,  Katsuyoshi Tuchida ,  Junichi Komuro ,  Seiji Shimazaki

IPC: A61M5/19 ,  A61M5/28 ,  A61M5/315 ,  A61M5/31

CPC classification number: A61M5/19 ,  A61M5/284 ,  A61M5/3137 ,  A61M5/31501 ,  A61M2005/3132

Abstract: A two-chamber type combined container-syringe includes an outer tube (10) formed in a tubular shape having a uniform inner diameter about an axis (O) thereof throughout the axis direction and provided with a bypass groove (11a) concaved from an inner circumferential surface in a portion in the axis direction, wherein the inner diameter of the outer tube (10) is 6.0 mm or more and 10.0 mm or less, the plurality of bypass grooves are formed in the circumferential direction of the axis at intervals, a cross-sectional area of the bypass groove perpendicular to the axis is 0.13% or more and 0.24% or less of an inner circumferential cross-sectional area of the outer tube perpendicular to the axis, and a depth of the bypass groove concaved from the inner circumferential surface is 2.7% or more and 3.8% or less of the inner diameter of the outer tube. As a result, solution can smoothly flow through the bypass groove, and an amount of solution remaining in the bypass groove can be reduced.

Abstract translation: 双室型组合容器注射器包括形成为管状的外管（10），其在整个轴线方向上具有围绕其轴线（O）的均匀内径，并且设置有从内部凹部（11a）凹陷的旁通槽（11a） 所述外管10的内径为6.0mm以上且10.0mm以下，所述多个旁通槽沿所述轴的周向间隔地形成， 垂直于轴的旁通槽的横截面面积是垂直于轴线的外管的内周截面积的0.13％以上且0.24％以下，并且从内侧凹下的旁通槽的深度 圆周面为外管内径的2.7％以上且3.8％以下。 结果，溶液可以顺利地流过旁路槽，并且可以减少残留在旁路槽中的溶液量。