Measuring method for heart sound and pulse wave transmission time and portable measuring device
A technology of conduction time and measuring device, applied in the field of medical equipment, can solve the problems of poor signal quality of dry electrodes, poor experience of wet electrodes, large volume, etc., and achieve the effect of simple implementation and good comfort
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[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.
[0051] A heart sound and pulse wave transit time measurement method, collecting and measuring heart sounds and pulse signals, and calculating the pulse wave transit time based on the heart sounds and pulse measurement results; among them,
[0052] Heart sound measurement includes the following steps:
[0053] Step 1: Pick up the heart sound, place an electret sensor in the stethoscope catheter, use the stethoscope to collect the heart sound signal of the user's aortic valve area, the heart sound signal is preprocessed, analog-to-digital converted into a digital signal, and the digital signal is transmitted through the Bluetooth module Sound processing module to smart phone;
[0054] Step two, heart sound envelope extraction, the sound processing module extracts the envelope of the heart sound signal through Hilbit tr...
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