Stethoscope is used in diagnosis of intracardiac branch of academic or vocational study

The utility model discloses a stethoscope is used in diagnosis of intracardiac branch of academic or vocational study, it includes the rubber three -way pipe, the both ends mouth of rubber three -way pipe one side has all cup jointed sound transmission pipe, and the connecting piece has all been cup jointed on this sound transmission pipe's surface, be connected through the spring leaf between the connecting piece, the both ends of this spring leaf all are provided with fixes the cover, the inboard of fixed cover all is provided with the connecting rod, and this connecting rod is connected through the rotary sleeve. The utility model discloses a set up the connecting rod, rotary sleeve and rotatory chamber, the use of mutually supporting, restrain the spring leaf, reached and reduced the spring leaf because elasticity drives sound transmission pipe and the injury of earplug head to doctor's ear, and then reduced the stethoscope tension and caused the pain of doctor's ear and the advantage of hearing harm, thr