In the present paper

we introduce a newly modified device named"transcutaneous electrical auricular concha stimulator(TEACS)"for rats. It concludes a main unit(power and control buttons)with newly designed specific output electrodes. Each of the output electrode is made up of two pieces of iron sheet containing magnet and can be firmly attached to the auricular concha and the corresponding site of dorsal auricle

respectively. The two iron sheets are separately connected to each of the output terminal of the main unit via two pieces of wire. This newly modified output electrode replaces the original wire clip

and solves the problems of easy loosening and easy injury of the original spring clip due to repeated usage

being simple

flexible and convenient in application.