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Notcold stethoscope / health+care

Notcold stethoscope
Notcold stethoscope

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.


zhao, changsheng

zhao, changsheng
Hangzhou city, zhejiang province, China

Rui Ma Yunyun Jin