US 12,274,670 B2
Liquid transfer device with integrated syringe
Igor Denenburg, Gedera (IL)
Assigned to WEST PHARMA. SERVICES IL, ltd., Ra'anana (IL)
Appl. No. 17/767,906
Filed by WEST PHARMA. SERVICES IL, LTD., Ra'anana (IL)
PCT Filed Mar. 26, 2020, PCT No. PCT/IL2020/050362
§ 371(c)(1), (2) Date Apr. 10, 2022,
PCT Pub. No. WO2020/208626, PCT Pub. Date Oct. 15, 2020.
Claims priority of provisional application 62/831,214, filed on Apr. 9, 2019.
Prior Publication US 2024/0099936 A1, Mar. 28, 2024
Int. Cl. A61J 1/20 (2006.01); A61J 1/10 (2006.01)
CPC A61J 1/10 (2013.01) [A61J 1/2013 (2015.05); A61J 1/2055 (2015.05); A61J 1/2062 (2015.05); A61J 1/2096 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A liquid transfer device configured for use with each of an infusion liquid container having an intravenous (IV) port, a vial sealed by a vial stopper, and an infusion set including an IV spike for sealing insertion into an IV port,
the liquid transfer device comprising:
a trifurcated connector body defining a barrel at a first end thereof, an IV spike at a second end thereof and a vial adapter lumen at a third end thereof,
the barrel defining an internal chamber having an open proximal end,
the IV spike defining an internal IV spike lumen having a distally located first aperture, and the IV spike being configured to sealingly insert into the IV port of the infusion liquid container, and
the vial adapter lumen branching off of the IV spike lumen;
a vial adapter secured to the vial adapter lumen and configured to mount onto the vial, the vial adapter including a cannula fluidly connected with the vial adapter lumen and configured to puncture the vial stopper upon mounting of the vial adapter onto the vial for flow communication therewith,
a plunger in slidable engagement with the internal chamber of barrel via the open proximal end thereof, the plunger comprising:
a piston face transversely oriented relative to, and in sealing engagement with, the barrel,
a tube projecting proximally from the piston face and terminating in an IV port configured to sealingly receive the IV spike of the infusion set, the tube defining an internal plunger lumen therein, and
a plunger rod projecting distally from the piston face and into the IV spike lumen, the plunger rod and the IV spike lumen defining a fluid-flow pathway therebetween, the fluid-flow pathway being sealed off from the vial adapter lumen; and
a second aperture interposed between a distal end of the internal chamber of the barrel and a proximal end of the IV spike lumen, and aligned with the fluid-flow pathway, to fluidly connect the fluid-flow pathway with the internal chamber of the barrel;
wherein:
in an advanced position of the plunger, the plunger rod seals off the vial adapter lumen from fluid communication with the IV spike lumen and the internal chamber of the barrel is in fluid communication with the IV spike lumen and the first aperture of the IV spike via the fluid-flow pathway and the second aperture, and
in a retracted position of the plunger, the plunger rod seals off the internal chamber of the barrel from fluid communication with the IV spike lumen and the first aperture of the IV spike, and the vial adapter lumen is fluidly communicated with the IV spike lumen and the first aperture of the IV spike.