Resealable medical transfer set

A resealable transfer set for transferring fluid between a vial having an open end and an elastomeric closure sealing said open end and a second container, said transfer set comprising:

• a generally tubular elastomeric fluid transfer valve member mounted on said open end of said vial having an open end portion generally coaxially aligned with said open end of said vial and a generally closed distal end portion spaced from said open end portion having a longitudinal slit therethrough, a piercing member telescopically received in said fluid transfer valve member generally coaxially aligned with said elastomeric closure having a first piercing end portion opposite said elastomeric closure and a second distal end portion adjacent said generally closed distal end portion of said fluid transfer valve member, and a generally tubular luer connector member generally surrounding said fluid transfer valve member having a first open proximate tubular portion mounted on said vial open end and a second distal end portion adjacent said generally closed portion of said fluid transfer valve member having a luer threaded portion, whereby a generally tubular portion of said second container having a luer connector may be threaded on said luer threaded portion of said luer connector member, driving said generally tubular portion of said second container through said slit in said generally closed portion of said fluid transfer valve member against said second distal end portion of said piercing member, driving said piercing end of said piercing member through said elastomeric closure in said vial open end and establishing fluid communication between said vial and said second container.

A resealable transfer set for transferring fluid between a vial having an open end sealed with an elastomeric stopper and a second container having a tubular portion and a luer connector surrounding said tubular portion, said transfer set comprising:

• a generally tubular elastomeric fluid transfer valve member having an open end portion generally coaxially aligned with said open end of said vial mounted on said vial open end and a generally closed distal end portion having a longitudinal slit therethrough, a piercing member telescopically received within said fluid transfer valve member generally coaxially aligned with said elastomeric stopper having a piercing proximate end portion opposite said elastomeric stopper and a second distal end portion adjacent said generally closed portion of said fluid transfer valve member, a generally tubular luer connector member surrounding said fluid transfer valve member including an open proximate end having a radial portion overlying said elastomeric stopper and an open distal end portion adjacent said generally closed portion of said fluid transfer valve member, and a collar including a radial portion overlying said radial portion of said luer connector member, a tubular portion surrounding said elastomeric stopper and a neck portion of said vial adjacent said open end and a free end portion received in a reduced diameter portion of said vial adjacent said rim portion securing said transfer set on said vial, whereby threading of said luer connector of said second container on said luer connector of said luer connector member of said transfer set drives said tubular end portion of said container through said longitudinal slit of said generally closed portion of said fluid transfer valve member against said distal end portion of said piercing member, driving said piercing end portion of said piercing member through said elastomeric stopper and establishing fluid communication between said vial and said second container.

A resealable transfer set for transferring fluid between a first container having an opening sealed with a pierceable closure and a second container, said transfer set comprising:

• a generally tubular elastomeric fluid transfer valve member mounted on said first container having an open end portion generally coaxially aligned with said opening of said first container and a generally closed portion spaced from said open end portion having a longitudinal slit therethrough, a piercing member telescopically received within said fluid transfer valve member between said open end portion and said generally closed portion generally coaxially aligned with said first container opening, said piercing member having a first relatively sharp piercing end portion opposite said pierceable closure and a second distal end portion opposite said generally closed portion of said transfer valve member, a cup-shaped closure surrounding said fluid transfer valve member having an open end mounted on said first container and a closed distal end, and a collar having a first proximate tubular portion surrounding said open end portion of said fluid transfer valve member mounting said fluid transfer set on said first container and a second distal tubular portion surrounding a portion of said cup-shaped closure adjacent said open end of said closure, wherein said closure includes a frangible portion surrounded by said second distal tubular portion of said collar, whereby a generally tubular portion of said second container may be driven through said slit in said generally closed portion of said fluid transfer valve member against said second distal end portion of said piercing member, driving said first piercing end portion of said piercing member through said pierceable closure and establishing fluid communication between said first and second containers.