NEEDLE-FREE CONNECTOR WITH COMPRESSED ELASTIC MEMBRANE INSERT AND CORRESPONDING METHOD Russian patent published in 2017 - IPC A61M39/10 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment. Needle-free connector for passage of liquid medium contains valve body with first and second holes. Inner surface of valve passes between holes and forms cavity. Hollow elastic membrane is located in valve body and has first and second ends, between which elastic membrane extends longitudinally. Second end has through hole opening into second hole. Side surface of membrane passes between first and second ends and it is located inside valve body. Side surface forms inner cavity of hollow elastic membrane. Inner cavity extends longitudinally from through slot located on first end to through hole at second end. Slot is closed, when first end is located in first hole so that it closes first hole. Slot is open, when first end is pushed into valve body to create passage for liquid medium through first end and cavity to second end. Outer surface of side surface of elastic membrane is in contact with inner surface of valve body so, that forms cavity with volume less than 1 % of inner cavity. Drug container and unit for passage of liquid medium including needle-free connector are disclosed.

EFFECT: invention provides minimization of space of drugs non-mixing.

15 cl, 18 dwg