System for Closed Transfer of Fluids and Membrane Arrangements for Use Thereof

Abstract

A syringe adapter includes a housing having a first end and a second end with the first end configured to be secured to a first container, a cannula having a first end and a second end with the second end of the cannula positioned within the housing, and a collet having a first end and a second end. At least a portion of the collet is received within the housing. The collet includes a body defining a passageway, a membrane received by the passageway, and a locking member connected to the body of the collet. The membrane has a body with a first end and a second end. The body of the membrane defines a passageway. The collet is movable from a first position where the locking member is open to receive a mating connector to a second position where radially outward movement of the locking member is restricted.

What is claimed is: 
     
         1 . A membrane for use in connection with a closed system transfer device, the membrane comprising:
 a body having a first end and a second end, the body of the membrane defining a passageway, the body of the membrane including a first head portion and a second head portion, the first and second head portions extending radially outward from the body.   
     
     
         2 . The membrane of  claim 1 , wherein the passageway of the membrane extends from the first end of the body of the membrane towards the second end of the body of the membrane. 
     
     
         3 . The membrane of  claim 2 , wherein the passageway terminates at a position intermediate the first and second ends of the body of the membrane. 
     
     
         4 . The membrane of  claim 1 , wherein the first head portion includes a frusto-conical surface. 
     
     
         5 . The membrane of  claim 4 , wherein the second head portion includes a convex surface.