Systems, devices and methods for dispensing biocompatible reactive formulations and controlling cross-linking of the reactive components of the biocompatible reactive formulations

A system for dispensing a biocompatible reactive formulation, the system comprising:

• a first chamber containing a first fluid having a first reactive component;
• a second chamber containing a second fluid having a second reactive component that is reactive with said first reactive component;
• a third chamber containing a third fluid;
• a spray tip assembly that is configured for spraying a final mixture of said first, second and third fluids, said spray tip assembly comprising:
• a spray tip housing having a proximal end, a distal end, an outer wall that extends from said proximal end to said distal end of said spray tip housing, and an elongated conduit surrounded by said outer wall that extends from said proximal end to said distal end of said spray tip housing;
• a fluid connector secured to said proximal end of said spray tip housing and opposing a proximal end of a mixing element, said fluid connector including:
• first and second fluid channels in fluid communication with a mixing chamber, said first and second fluid channels comprising first and second fluid inlet openings, first and second fluid exit openings, and first and second fluid conduits extending between said first and second fluid inlet openings and said first and second fluid exit openings, respectively;
• and
• a third fluid channel in fluid communication with a third fluid inlet opening of said mixing element;
• said mixing element disposed within said elongated conduit of said spray tip housing;
• and
• said mixing chamber located between an outer surface of said mixing element and an inner surface of said outer wall of said spray tip housing,
• said mixing element including:
• said proximal end adjacent said proximal end of said spray tip housing and a distal end adjacent said distal end of said spray tip housing,
• said third fluid inlet opening at said proximal end of said mixing element, and
• one or more third fluid exit openings formed in said outer surface of said mixing element that are in fluid communication with said third fluid inlet opening and that extend laterally to said outer surface of said mixing element for being in fluid communication with said mixing chamber;
• and
• a pump assembly coupled with said first, second and third chambers for simultaneously forcing said first, second and third fluids to flow through said first, second and third fluid channels of said fluid connector and into said proximal end of said spray tip housing.