Patent ID: 7699803

Claim:
A device for administering a plurality of component substances into or onto the body of a human or animal subject such that the component substances become combined to produce a resultant component mixture or reaction product that directly or indirectly results in some therapeutic, diagnostic or cosmetic benefit, said device comprising: a manifold having a first component substance flow channel and a second component substance flow channel; a first injector connectable to the manifold and containing a first component substance, said first injector being usable to inject a first component substance into the first component substance flow channel of the manifold; a second injector connectable to the manifold and containing a second component substance, said second injector being usable to inject a second component substance into the second component substance flow channel of the manifold; an injector cannula assembly comprising; an outer tube that has an outer tube lumen and a distal opening, said outer tube being connected to the first component substance flow channel of the manifold such that the first component substance will flow through the outer tube lumen; and an inner tube that has an inner tube lumen and a distal opening, said inner tube being connected to the second component substance flow channel of the manifold such that the second component substance will flow therefrom into the inner tube lumen and out of the distal opening of the inner tube; a first reservoir containing an additional quantity of the first substance and being connected to the manifold so that the first component substance may pass from the first reservoir and into the first injector when it is desired to refill the first injector with first component substance; a second reservoir containing an additional quantity of the second substance and being connected to the manifold so that the second component substance may pass from the second reservoir and into the second injector when it is desired to refill the second injector with second component substance; a substance temperature control apparatus for controlling the temperature of at least one of the component substances while it is contained in the first reservoir or second reservoir; wherein at least a portion of the inner tube extends through at least a portion of the outer tube lumen such that the second component substance becomes combined with the first component substance thereby forming a resultant component substance mixture or reaction product; and wherein the device further comprises valving apparatus useable to alternately allow a) the first component substance to flow from the first reservoir into the first injector and the second component substance to flow from the second reservoir into the second injector and b) the first component substance to flow from the first injector into the outer tube lumen and the second component substance to flow from the second injector into the inner tube lumen.