Description

Stethoscope Specifications

Introduction

The stethoscope is an acoustic medical device used to auscultate sound changes in the human heart, lungs, veins, and other organs. When the diaphragm is placed on the patient, body sounds vibrate the diaphragm, creating acoustic pressure waves that travel up the tubing to the listener's ear.

Key Specifications

• Main Material: Copper, rubber tube, spring
• Frequency Response:
• Spring Hardness: HR15N 82.90–88.40
• Earplug Elasticity (at 140 mm opening): 1.372 ~ 1.960 N
• Elastic Recovery: When earplugs are pulled to 300 mm and released for 1 minute, the permanent deformation must not exceed 10 mm.