ITO HISAFUMI,伊藤 久文,ARAKAWA SHOTA,荒川 翔太,KASHIBA TAKASHI,加柴 隆史
申请号：
JP2013210512
公开号：
JP2015073635A
申请日:
2013.10.07
申请国别(地区):
JP
年份:
2015
代理人:
摘要：
PROBLEM TO BE SOLVED: To provide a multilayer syringe barrel having superior moldability and having a multilayer configuration accommodated to use applications.SOLUTION: A multilayer syringe barrel 200 includes: a nozzle part 1 to which an injection needle can be connected a cylindrical part 3 having a flange 5 at an open end and a shoulder part 2 for connecting the nozzle part 1 to the cylindrical part at an opposite side to the open end. An angle formed between a central axis of the multilayer syringe barrel and a shoulder-part outer surface, and an angle formed between the central axis and a shoulder-part inner surface are 100°-140°, and the wall thickness of the shoulder part is larger than the wall thickness of nozzle part in the shoulder part side.COPYRIGHT: (C)2015,JPO&INPIT【課題】成形性に優れ、用途に合わせた多層構成を有する多層シリンジバレルを提供する。【解決手段】多層シリンジバレル200は、注射針を接続可能なノズル部1と、開放端にフランジ5を有する円筒部3と、開放端と反対側で該ノズル部と該円筒部とをつなぐ肩部2とを備える。多層シリンジバレルの中心軸線と肩部外表面の間をなす角度及び当該中心軸線と肩部内表面の間をなす角度が100°~140°であり、肩部の肉厚がノズル部の肩部側の肉厚よりも大きい。【選択図】図1
