B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 47/36 (2006.01) A61J 1/00 (2006.01) A61J 1/14 (2006.01) B65D 51/00 (2006.01) B65D 51/22 (2006.01)
Patent
CA 2141852
2141852 9403373 PCTABS00030 Disclosed is a stopper for use with containers to provide needleless access to the container with a cannula having a blunt penetrating tip. Also disclosed is a system comprising the stopper, container and cannula. The stopper includes a disc (29) having an upper face (31) and a lower face (33), and a plug (27) extending from the disc into the container. Also included is a diaphragm (37), defined by a target region in the upper face and a cross channel (41) in the disc for controlling the force needed to penetrate the stopper with the cannula. The plug includes a first inward surface (43) for guiding the cannula and a second inward suface (45) for engaging the cannula to minimize wetting of the outside of the cannula. In a preferred embodiment, the first surface (43) extends down from the cross channel (41) on the lower side of the disc, radially outwardly to a maximum diameter and the second inwardly facing surface (45) extends down from the first surface radially inwardly to a minimum diameter to form the cannula seal. Also shown is a centrally located piercing point positioned to pre-slit the diaphragm. An overcap may be provided to alternatively have an axially aligned boss and bore positioned to pre-slit the diaphragm. In another embodiment, the invention includes an annular pre-slit disc (59) formed of self sealing material and positioned to reduce spray back when inserting or removing the cannula.
Conard William A.
Deleon Olivas Jerome
Dudar Thomas E.
Jepson Steven C.
Vander Bush Edward F.
Borden Ladner Gervais Llp
The West Company Incorporated
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