Closed fluid transfer system with syringe adapter

1. A patient push adapter for a closed fluid transfer system, the patient push adapter comprising:

a body portion having a male stem disposed at a first end thereof and a patient push adapter luer connector at a second end thereof, wherein the male stem defines a lumen extending therethrough and wherein the patient push adapter luer connector is in fluid communication with the lumen of the male stem;

a pair of opposed guide pins extending radially outward from the male stem;

a pair of opposed guide surfaces extending radially outward from the male stem at a location proximal of the guide pins and being in registration with the guide pins; and

a seal extending across the lumen of the male stem;

wherein the patient push adapter is configured to move a syringe adapter from a closed state to an open state, the syringe adapter including:

a housing defining an open distal end and an open proximal end, the housing defining a pair of opposed longitudinally extending slots opening from the open distal end of the housing, the housing including a pair of opposed longitudinally extending ribs projecting from an inner surface thereof;

a base supported in the open proximal end of the housing and including the syringe adapter luer connector;

a collar slidably and rotatably supported in the housing, the collar defining a longitudinal opening therethrough, the collar defining a pair of opposed L-shaped tracks formed in an outer surface thereof and configured to receive a respective longitudinally extending rib therein, the collar defines a pair of opposed helical tracks opening from a distal surface of the collar, the opposed helical tracks being aligned with a respective slot of the housing when the collar is in a distal-most position;

a shuttle slidably extending through longitudinal opening of the collar, the shuttle defining a shuttle lumen extending longitudinally therethrough;

a barrel supported on and extending over a distal end of the shuttle, the barrel defining a central opening aligned with the shuttle lumen; and

a biasing member interposed between the collar and the shuttle for urging the collar away from the shuttle;

a syringe first adapter seal being interposed between the shuttle and the barrel, wherein the syringe first adapter seal extends across the shuttle lumen and the central opening of the barrel; and

a needle defining a lumen therethrough, the needle having a proximal end supported in the base such that the lumen of the needle is in fluid communication with the luer connector, the needle having a sharpened distal tip disposed within the lumen of the shuttle when the shuttle is in a distal-most position;

wherein the patient push adapter moves the syringe adapter from the closed state to the open state upon:

inserting the guide pins of the male stem of the patient push adapter into the respective slots of the housing of the syringe adapter, whereby the seal of the patient push adapter abuts the seal of the syringe adapter;

advancing the male stem of the patient push adapter into the open distal end of the housing such that the guide pins enter into the respective helical track of the collar to (1) rotate the collar relative to the housing of the syringe adapter and (2) align the ribs of the housing with a through portion of the collar; and

further advancing the male stem of the patient push adapter into the open distal end of the housing causing the collar to move proximally which causes the shuttle to move proximally until the tip of the needle penetrates through the abutting seals, whereby the syringe adapter is in the open state and fluidly interconnects the syringe with the patient push adapter.

2. The patient push adapter according to claim 1 , wherein when a syringe is connected to the syringe adapter, and when the syringe adapter is connected to the patient push adapter, the tip of the needle of the syringe adapter penetrates the abutting seals of the syringe adapter and the patient push adapter and when the patient push adapter is connected to the I.V. set, the syringe is in closed fluid communication with the I.V. set.

3. The patient push adapter according to claim 2 , wherein each seal is made from polyisoprene.