Delivery system

A method of dispensing a composition onto a bodily surface of a patient in need thereof, comprising:

• (a) detecting said bodily surface with an optical detector to obtain three-dimensional coordinates thereof, wherein said optical detector further comprises a depth detector to account for movement of the patient;
• (b) processing the three-dimensional coordinates by:
• (i) interpreting the coordinates to form a model of the bodily surface;
• (ii) transforming the model into a negative mold of the bodily surface, which mold is split into a plurality of Z-axis layers;
• and
• (iii) overlaying each of said Z-axis layers in the negative mold with a series of lines which represent coverage of the bodily surface, wherein said lines provide a path for a dispenser;
• and
• (c) dispensing the composition onto said bodily surface of said patient with said dispenser based upon said coordinates, wherein the dispensing step is carried out by:
• (i) mixing fibroblast cells with a hydrogel to form a composition comprising fibroblast cells;
• (ii) dispensing the composition comprising fibroblast cells onto the bodily surface;
• (iii) crosslinking the composition comprising fibroblast cells to form a gel layer;
• and
• (iv) dispensing a composition comprising keratinocytes over the gel layer.