Medicine vial link for needleless syringes

Claim 1

An adapter link for providing sealed fluid medicament communication between a medicine vial having an opening for access and a needleless medication dispensing syringe having a conical nozzle tip, said adapter link comprising: a resilient, tubular, generally cylindrical body member having a smooth outer surface for tightly fitting the inside of the opening formed in the medicine vial, and an outer periphery; an upstanding annular portion formed in said body portion, having an upper rim around said outer periphery; means defining a smooth central aperture formed in said upstanding annular portion, for sealably receiving said conical nozzle tip of said syringe, said aperture formed as a blind bore extending partially through said body member; and a valve disposed within said body member, having automatically operating means for maintaining said blind bore closed, and for opening said valve responsive to insertion of the conical nozzle tip of the syringe into said aperture formed in said body member, wherein said upper rim on said upstanding annular portion of said body is expanded radially when the conical nozzle tip of the syringe is received in said blind bore, said valve comprising a hollow valve body having a plurality of holes extending only radially through said hollow valve body and a floor closing the bottom of said hollow valve body, whereby said valve serves as a sieve for filtering fluid.