Patent ID: 6719719
Filing Date: 2004-04-13
Classification: A61J,A61M

Abstract:
A spike for facilitating the introduction of liquid under pressure into a container containing a substance, said spike comprising:(a) an elongate spike shaft having a spike side wall, a longitudinal axis, a distal end and a proximally located end portion, said distal end having a sharp, pointed tip; (b) an introduction channel within said spike shaft for receiving liquid into the container, a portion of said introduction channel angled to cause liquid to travel out of the introduction channel in a direction non-parallel to said longitudinal axis of said spike shaft; and (c) an extraction channel within said spike shaft for removing liquid from said container, said extraction channel extending through said elongate spike shaft towards said proximally located end portion, said extraction channel not coaxial with said introduction channel said extraction channel having an inlet opening in said spike shaft for receiving liquid from said container and said introduction channel having a diluent outlet opening in said spike shaft, wherein said inlet opening is closer to said proximally located end portion than said diluent outlet opening.