Search International and National Patent Collections

1. (WO2018180566) NEEDLE-EQUIPPED OUTER CYLINDER AND METHOD FOR MANUFACTURING SAME

Pub. No.:    WO/2018/180566    International Application No.:    PCT/JP2018/010345
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 16 00:59:59 CET 2018
IPC: A61M 5/34
A61M 5/28
Applicants: TERUMO KABUSHIKI KAISHA
テルモ株式会社
Inventors: TAKEMOTO Masafumi
竹本 昌史
MATSUMOTO Fumiya
松本 二三也
Title: NEEDLE-EQUIPPED OUTER CYLINDER AND METHOD FOR MANUFACTURING SAME
Abstract:
This needle-equipped outer cylinder 1 comprises: a needle pipe 3; a joint member 4 having a needle pipe containing hole 42 for containing the base end-side portion of the needle pipe, the joint member 4 also having a joint outer peripheral section 47 having a reduced outer diameter; and an outer cylinder member 2 provided with a front end joint section 22 having an inner cavity 26 capable of receiving the joint member 4 from the front end side. The outer cylinder member is provided with a protrusion 28 provided at the base end of the inner cavity 26. The joint member is provided with a contact section 48 in contact with the protrusion of the outer cylinder member. The joint member 4 is inserted in the inner cavity in the outer cylinder member, and the protrusion 28 of the outer cylinder member and the contact section of the joint member 4 are in contact with each other. The joint member 4 is joined and secured to the outer cylinder member and the needle pipe by a thermal weld section 45 formed at a position located a predetermined distance toward the base end from the front end of the front end joint section.