Device for determining the concentration of at least one substance in living tissue.

Organic tissue the measuring device of material concentration of concentration's, comprising a capable of the dripping the needle the tissue, particularlyAn perfusate, comprising a dustproof balance of the tissue suction device wherein pump for extracting, thus which can of alpine rose in the or exogenous thereof and perfusate with organization's substituted degrees; The area of the measuring device is made to seek which is the material and thereof concentration analysis device; And hypodermic needle is a single cavity hypodermic needle, comprising a cavity for analyzing device connected, analyzing device outlet one side and pump suction device connected; the dripping needle cavity flow direction of perfusate of reverse when the pump more and absorption and crossed.