Blood pressure measuring device
A measuring device, a technology for blood pressure, applied in the direction of blood pressure measuring device, diagnostic recording/measurement, medical science, etc., can solve problems such as changes, and achieve the effect of simple correction
Inactive Publication Date: 2014-11-26
SEIKO EPSON CORP
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In Patent Document 1, the stiffness coefficient β is calculated from the maximum blood pressure Ps and the minimum blood pressure Pd obtained by a cuff-type sphygmomanometer. The value of will obviously also change
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[0039] Hereinafter, this embodiment will be described with reference to the drawings. In addition, the used drawings are appropriately enlarged or reduced so that the parts to be described can be recognized.
[0040] figure 1 It is an external view showing a state in which the blood pressure measuring device according to the present embodiment is worn. figure 2 It is a diagram showing a blood flow velocity sensor and a blood vessel diameter sensor according to the present embodiment. image 3 It is a figure which shows the circuit block of this embodiment. The blood pressure measurement device 2 of the present embodiment has a blood flow velocity sensor 10 and a blood vessel diameter sensor 12 . The blood pressure measurement device 2 is worn on the subject 4 (see Figure 4 ) wrist portion 16, measure the blood flow velocity v and blood vessel diameter d of the radial artery (vessel) 14, and obtain the blood pressure P.
[0041] The blood flow velocity sensor 10 is attac...
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The invention provides a blood pressure measuring device and a blood pressure measuring method. The blood pressure measuring device is provided with: a blood flow speed sensor part which detects the blood flow inside a living body; a blood flow speed sensor driving part which drives the blood flow speed sensor part; a blood flow speed sensor signal operational part which controls the blood flow speed sensor driving part and the blood flow speed sensor part and calculates the blood flow speed inside the living body; a blood vessel diameter sensor part which detects the reflection arrival time difference of a vessel wall inside the living body; a blood vessel diameter sensor driving part which drives the blood vessel diameter sensor part; a blood vessel diameter sensor signal operational part which controls the blood vessel diameter sensor driving part and the blood vessel diameter sensor part and calculates the blood vessel diameter inside the living body; and a blood pressure signal operational part which calculates the blood pressure of the measured people by using the operational result of the blood flow speed sensor signal operational part and the blood vessel diameter sensor signal operational part.
Description
[0001] This application is a divisional application of an invention patent application with an application date of May 18, 2011, an application number of 201110129046.X, and an invention title of "blood pressure measuring device and blood pressure measuring method". technical field [0002] The present invention relates to a blood pressure measuring device and a blood pressure measuring method. Background technique [0003] Conventionally, as a method of measuring blood pressure, a method using ultrasonic waves has been proposed. For example, at a local part of an artery, the maximum diameter and the minimum diameter are obtained, and these parameters are given to a nonlinear function, and the input diameter at each time is converted by this nonlinear function to calculate the diameter of the local part. Pressure at each time point (for example, refer to Patent Document 1). [0004] In addition, a method has been proposed in which blood flow velocity, flow rate, or volume, ...
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Inventor 真野知典横山敏彦
Owner SEIKO EPSON CORP