Sign up for
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Metal can be better to sound, so it is applied in the stethoscope as materials in contact with skin.But the metal paste on the skin will be more cold, especially in the cold winter,which will bring the patient discomfort“NOTCOLD” Stethoscope uses the principle of making supersaturated of CH3COONa crystal to get release heat.The heat which makes the metal surface of the stethoscope warm,then we solve the question of the cold supersaturated.
Hangzhou city, zhejiang province, China
Rui Ma Yunyun Jin