Hypodermic needle as a safe and easy mini cotton bud applicator for chemical cautery

Abstract

Abstract To simplify the chemical cautery, micropipette and syringe outlet are stuffed with cotton wick for a better flow of chemical due to capillary action. However, the corrosive effect of chemicals on metallic needle and on rubber/plastic cap of the piston leads to the leakage of chemicals. Hypodermic needle and tooth picks have been used for chemical cautery, but it requires frequent dipping into the chemical, which is not safe. A bent (hooked) hypodermic needle is described as an alternative for safe, quick, and precise cauterization of multiple small skin lesions.