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1. (WO2017057659) SYRINGE DEVICE FOR BRINGING TWO TYPES OF SUBSTANCES INTO COMMUNICATION AND METHOD THEREFOR

Pub. No.:    WO/2017/057659    International Application No.:    PCT/JP2016/078973
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Sat Oct 01 01:59:59 CEST 2016
IPC: A61J 3/00
A61J 1/20
A61M 5/178
Applicants: KAKEN PHARMACEUTICAL CO., LTD.
科研製薬株式会社
Inventors: MOMOSE, Noboru
百瀬 昇
SUGIMOTO, Takuya
杉本 拓也
WATANABE, Norio
渡邊 徳夫
Title: SYRINGE DEVICE FOR BRINGING TWO TYPES OF SUBSTANCES INTO COMMUNICATION AND METHOD THEREFOR
Abstract:
The present invention enables a state in which two types of substances are in communication with each other via a double-ended needle assembly to be created by a one-step continuous pushing operation, while preventing an inflow of air or liquid leakage. This syringe device 1 is provided with an administration holder 2 and a cylinder portion 6 into which the administration holder 2 can be inserted. The cylinder portion 6 is provided with a connection holder 3, a slit holder 4 connected to the connection holder, and a double-ended needle assembly 5 disposed so as to be slidable in the connection holder 3. A cartridge for a freeze-dried product is loaded into the administration holder 2, while a cartridge for a solution is loaded into the connection holder 3. Once the administration holder 2 is pushed in, the double-ended needle assembly 5 slides. When one needle tip thereof has opened the cartridge for the freeze-dried product, the other needle tip of the double-ended needle assembly 5 slightly pierces the cartridge for the solution, and further sliding of the double-ended needle assembly 5 causes the other needle tip to open the cartridge for the solution.