| 可选择心动间期电子听诊器的研制 |
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| 引用本文： | 徐力辛,徐正惠.可选择心动间期电子听诊器的研制[J].医疗卫生装备,1997(4):3-6. |
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| 作者姓名： | 徐力辛 徐正惠 |
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| 作者单位： | 温州医学院附二院 |
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| 摘 要： | 本文介绍一种新型电子听诊器。利用心电信号的 ＱＲＳ波控制电子模拟开关，有选择地传导或删除心动周期中某段时间的心音信号，能清晰地区分和辨认心脏听诊内容，有助于临床教学。并介绍有关线路的设计。
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| 关 键 词： | 电子听诊器 心动间期 心音信号 |
A design of electronic stethoscope with function of choosing phase of cardiac cycle |
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| Xu Lixin et al.A design of electronic stethoscope with function of choosing phase of cardiac cycle[J].Chinese Medical Equipment Journal,1997(4):3-6. |
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| Authors: | Xu Lixin |
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| Institution: | The 2nd Affiliated Hospital of Wenzhou Medical College |
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| Abstract: | A new type of electronic stephoscope is presented. With an analogic switch controlled by QRS complex of ECG,the stethoscope can pass or reject heart sound signal in choosed period of cardiac cycle, and can discriminate between systolic and diastolic phases easily. It will be helpful for clinic training. The circuit design of the stethoscope is also given. |
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| Keywords: | electronic stethoscope cardiac cycle heart sound signal |
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