目前挂在医生耳窝内的听诊器用不了多久就会被一种新近问世的新型数字式听诊器取代。 新型数字式听诊器是由德国公司研制的。它的最大特点是能让医生有选择地单独听取肺音或心音。医生可以单独听取要检查的器官发出的声音,而不受邻近器官发出声音的干扰,使听诊更为准确。 在这种听诊器中,信号由特别灵敏的传感器发出,经电路板滤波和放大后送到耳机,在听诊器上提供三档开关设定,即普通模式、心 It is not long before the stethoscope attached to the doctor’s ear is replaced by a newly introduced digital stethoscope. The new digital stethoscope was developed by a German company. Its greatest feature is to allow doctors to selectively listen to lung sounds or heart sounds alone. The doctor can listen to the sound of the organ to be examined independently of the sound of the neighboring organs to make the auscultation more accurate. In this stethoscope, the signal emitted by the sensor is particularly sensitive, filtered and amplified by the circuit board to the headset, the stethoscope to provide third gear switch settings, the normal mode, the heart