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1. (WO2017016092) POSITIVE PRESSURE NEEDLE-FREE INJECTION Y-TYPE CONNECTOR DEVICE

Pub. No.:    WO/2017/016092    International Application No.:    PCT/CN2015/093819
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Fri Nov 06 00:59:59 CET 2015
IPC: A61M 5/14
Applicants: CHIA CHERNE INDUSTRY CO., LTD.
佳承精工股份有限公司
Inventors: KUO, Yung Pin
郭永斌
Title: POSITIVE PRESSURE NEEDLE-FREE INJECTION Y-TYPE CONNECTOR DEVICE
Abstract:
A positive pressure needle-free injection Y-type connector device (100), comprising a Y-type tube (1) and an elastic sealing component (2), the Y-type tube (1) being provided with a limiting portion (123) and a needleless injection interface portion (125), the needleless injection interface portion (125) being provided with an injector interface (126) substantially matching a needleless injector, the elastic sealing component (2) being arranged within an injection tube portion (12) and being provided with a pressure-bearing head (21), a pressure-actuated body (22) and a pressure-bearing base (23) in a sequentially connected manner, the pressure-bearing head (21) being provided with a sealing portion (211), the sealing portion (211) substantially sealing the injector interface (126), a side of the pressure-bearing head (21) being formed with a gap portion (212), a flow space (S) being provided between an outer surface of the pressure-actuated body (22) and an inner surface of the injection tube portion (12). When the needleless injector is removed, a positive pressure is produced via the elastic sealing component (2) by resilience produced due to deformation, so that it is difficult for an injection infusion or venous blood to flow back, thereby preventing the problem of an indwelling needle (500) becoming blocked.