Patent ID: 7678073

Claim:
An automatic injector comprising: a housing assembly having a central longitudinal axis; an interior chamber located within the housing assembly, the interior chamber having an inner side surface extending in the direction of the longitudinal axis, and a seal structure positioned in the interior chamber to form a dry compartment and a wet compartment, the dry compartment suitable for containing a dry substance and the wet compartment suitable for containing a liquid, the seal structure positioned between the dry compartment and the wet compartment, the seal structure comprising: a first end adjacent the wet compartment; a second end adjacent the dry compartment; an outer seal that sealingly engages the inner side surface of the interior chamber to prevent passage of liquid between the outer seal and the inner surface of the chamber, and a fluid-directing member located on the second end of the seal structure, the fluid-directing member comprising a channel having a fluid exit port into the dry compartment, the fluid exit port having an opening that fully faces the inner side surface of the chamber.