Patent ID: 8425453
Filing Date: 2013-04-23
Classification: A61J,A61M

Abstract:
1. A reconstitution container device for reconstituting a dried medication, the reconstitution container device comprising: a plug component having a proximal end, a distal end, and a side portion disposed between the ends, the side portion having a periphery with an outer surface, the plug component having an external diluent connector port, and having an internal diluent flow path from the diluent connector port to a plug outlet port located at the side periphery; a barrel component engaged with the plug component, the barrel component having a wall with an inner surface within which is formed an internal cavity with a size selected to contain a predetermined quantity of liquid medication for drying to a powder, the barrel component also having a distal end with an external ejection connector port; an elongated channel wall having a winding shape in which it winds around itself to form an elongated winding mixing channel, the channel wall being located within the barrel component such that the channel has a closed bottom and an open top, the channel wall having a height and length selected to contain the entire quantity of powder completely within the mixing channel while still having open space remaining in the mixing channel, the mixing channel having an input end and an output end with the output end connected with the ejection port; a continuous diluent distribution groove completely encircling the plug side portion and formed in at least one of the plug side portion and the inner surface of the barrel, the diluent distribution groove located so as to be connected with the plug outlet port; a diluent interconnecting groove formed longitudinally in the surface of the inner wall of the barrel component having a length selected to connect with the diluent distribution groove and with the input end of the mixing channel, wherein the mixing channel provides an indirect flow path between the diluent interconnecting channel and the ejection port; wherein the top of the elongated channel wall is located within the barrel component facing the plug component so that when the plug component and the barrel component are assembled together after the liquid medication is dried, the distal end of the plug component pushes powder into the mixing channel, and contacts and closes the top of the elongated mixing channel so that the only access to the powder is provided by the input and output ends of the mixing channel; and wherein forcing diluent through the diluent port causes it to flow through the plug component, through the distribution groove, through the diluent interconnecting groove, into the input end of the mixing channel, and through the space in the mixing channel in contact with the powder, reconstituting the powder to form a delivery solution having a medication concentration gradient as it flows out the ejection port with initial flow of reconstituted solution having a higher concentration of the medication than later flow of reconstituted medication.