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肺部听诊的进展过程大体可分为三个阶段,(一)用耳朵附于胸壁的直接听诊;(二)使用听诊器的间接听诊。1818年La(?)nnec发明了听诊器并进行了大量尸解,研究肺声与局部病理变化的关系,将肺声分为二大类,正常呼吸音和附加音,提出了啰音(rale)的概念,为肺声奠定了基础。(三)应用现代电子技术记录肺声,结合声波的发生、传导,吸收、共振等物理特性和肺组织的组织生理特点进行了大量的声学实验。记录肺声,分析其波型的形态,振幅、频率等特点。结合临床资料解释肺声的发生机制、部位及其临床意义。
The progress of lung auscultation can be divided into three stages: (1) direct auscultation with the ear attached to the chest wall; (2) indirect auscultation using a stethoscope. In 1818 Laññnéc invented a stethoscope and performed a large amount of autopsy to study the relationship between pulmonary sound and local pathological changes. The lung sounds were divided into two categories, normal breath sounds and additional sounds, and rale was proposed. The concept of lung sound laid the foundation. (C) the use of modern electronic technology to record lung sound, combined with the occurrence of sound waves, conduction, absorption, resonance and other physical characteristics of the lung tissue and physiological characteristics of a large number of acoustic experiments. Record lung sound, analyze its wave shape, amplitude, frequency and other characteristics. Combined with clinical data to explain the mechanism of lung sound, location and clinical significance.