Design and implementation of fast allergy skin test detector for traditional Chinese medicine injections

Traditional Chinese medicine (TCM) injections are prepared from active substances extracted from TCMs and other natural medicines to establish scientific and technological methods, based on TCM hypotheses and experiences. A device was designed to provide a fast allergy skin test detector for TCM injections that could be applied to drugs of a single component or complex components. A novel fast allergy skin test detector for TCM injections was developed combining direct-current main, drug solution permeation devices of various shape that were compatible with the skin test electrode, nano-sponge patch adsorption, and flexible liposome coverage technologies with high-amplitude pulse. The detector was characterized by simple structure, easy manipulation, low dose of drug required for the skin test, no irritation to human skin, and low-false positive rate. According to the pilot clinical use, it was able to meet the clinical demand and was promising for the prevention of allergy to TCM injections.