| 摘要 |
PURPOSE: A self-diagnosis digital stethoscope is useful in comparing sounds of patients heard by a stethoscope with specifically regulated sound waves, which are inherent according to a kind of diseases, therefore, patients enable to self-diagnosis of disease. CONSTITUTION: A digital stethoscope for self-diagnosis works by using stethoscopic sounds which are inherent by diseases. The stethoscope is run by a principle of regulating vibration of sounds generated from respective parts of a human body into specific sound waves inherent according to a kind of diseases, converting the sound waves into electrical signals and digitalizing and storing them. The digitalized signals are further reproduced to compare themselves with stethoscopic sounds by patient. The digital stethoscope comprises an Analog-Digital converter and a Digital-Analog converter, a storage medium, a sound collecting tube and a small microphone.
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