Patent ID: 9568113
Date: 2017-02-14
CPC Classifications: F16K,G01N

Claim:
1. A fluid transfer device comprising: a body; an elongate passage extending through the body and having a proximal end and a distal end; a longitudinally displaceable shaft disposed in and extending along the passage, the shaft having a proximal end and distal end and having a first position displaced toward the proximal end of the passage and a second position displaced toward the distal end of the passage, the shaft axially biased toward the proximal end of the passage; a plug attached to the proximal end of the shaft and sealing the passage at the proximal end thereof when the shaft is in its first position; a diaphragm sealing the passage at a location intermediate the plug and the distal end of the passage; the shaft extending through and being sealingly secured to the diaphragm; a fluid transfer opening in the passage between the plug and the diaphragm; and a tab assembly to which the shaft is connected, the tab assembly controlling the displacement of the shaft through the passage, wherein longitudinal displacement of the shaft towards its second position moves the plug to open the passage, the diaphragm stretches to accommodate the displacement of and maintain a seal about the shaft, and a substantially aseptic fluid flow path is established between the open end of the passage and the fluid transfer opening.