RELEASING DEVICE FOR LIQUID MEDIUM Russian patent published in 2021 - IPC A61M15/08 

FIELD: medical equipment.

SUBSTANCE: invention relates to liquid medium-pressure devices (1). Device comprises feeding container (2) for receiving medium, releasable head (3) fixed on feed tank (2) with outlet opening (6) for dispensing medium from feed container (2), associated with outlet opening (6) outlet valve (7) with prestressed valve body (8), which limits prechamber (9) of valve by means of pressure application surface (10) made on membrane (14). Besides, surface (10) of pressure application from outer side has pressure area (16) which does not change its position. Device also comprises pressure equalizing channel (D) flowing into feed tank (2) with microbiologically active filtering device (19) inserted into it. At that, pressure equalization channel (D) is separated from medium path (M) from feed tank (2) through antechamber (9) of valve to outlet opening (6). At that, pressure application surface (10) as pressure area (16) has edge projection (20) in form of cap, which on inner side is installed on edge (21) of disc of inner element (17) of releasing head (3), and disc edge (21) has radially outwardly extending stop (22), which forms support surface for edge projection (20) with gap between surface (10) of pressure application and end surface (23) of disk edge (21). Valve body (8) forms membrane (14) so that valve pusher (15) is lifted from it, which on the head side bears sealing element (12) for locking outlet opening (6) and wherein membrane (14) for formation of said position that does not change its position on edge is fixed tightly for fluid medium on inner element (17) of release head (3) by means of laser welding.

EFFECT: disclosed is a releasing device for liquid medium.

17 cl, 12 dwg