Patent ID: 8057426
Filing Date: 2011-11-15
Classification: A61B,A61M

Abstract:
1. A method 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 mixture or reaction product that directly or indirectly results in some therapeutic, diagnostic or cosmetic benefit, said method comprising the steps of: (A) preparing a device which comprises i) a manifold having a first component substance flow channel and a second component substance flow channel; ii) a first assembled injector comprising a barrel and a moveable plunger positioned within the barrel, said first assembled injector being connectable to the manifold and useable to inject a first component substance into the first component substance flow channel of the manifold; iii) a second assembled injector comprising a barrel and a movable plunger positioned within the barrel, said second assembled injector being connectable to the manifold and useable to inject a second component substance into the second component substance flow channel of the manifold and iv) an injector cannula assembly comprising a) 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; b) 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, 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 v) first and second fill reservoirs that contain quantities of the first and second component substances and are connected to the first and second injectors such that the first injector can be loaded with a quantity of the first component from the first fill reservoir and the second injector can be loaded with a quantity of the second component substance from the second fill reservoir while the first and second injectors remain assembled with their moveable plungers positioned within their barrels and attached to the manifold; (B) attaching injectors to the manifold; (C) positioning the injector cannula at a desired location within or on the subject's body; and (D) using said injectors to inject component substances through the manifold and through the at least one injector cannula such that the resultant component substance mixture or reaction product is deposited at a desired location in or on the subject's body; (E) reloading the assembled injectors with quantities of the component substances from the fill reservoirs without disassembly of the injectors or removal of their plungers from their barrels; and, thereafter (F) repeating Step C and D.