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Circulatory dynamics measurement apparatus

A dynamic measurement and equipment technology, applied in medical equipment, diagnostic recording/measurement, medical automated diagnosis, etc., can solve problems such as expensive equipment, difficult to use, and restraint of limbs

Inactive Publication Date: 2014-04-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional test method, the subject needs to lie on the bed and the limbs are restrained
In addition, the equipment to perform traditional testing methods is expensive and difficult to use in the average home

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0059] A cyclic dynamic measuring device according to a first embodiment of the present invention will be described below.

[0060] Such as figure 1 As shown, the circulatory dynamics measurement apparatus 10 includes a cuff 11 serving as a pressure applying member for compressing a predetermined part of the body of a person to be measured. The predetermined site of the subject is, for example, the upper arm. The cuff 11 is wound and tied to the upper arm of the subject while measuring the subject's blood pressure and blood vessel stiffness which is a type of circulatory dynamics other than the blood pressure. The cuff 11 compresses the upper arm (brachial artery) of the subject as the internal air pressure (compression pressure) changes when it is attached to the subject's upper arm. In a non-limiting example, the cuff 11 may be a belt-like member including a rubber compression strap.

[0061] The cuff 11 is connected to a pressure control unit 12 for changing the compres...

no. 2 example

[0082] A cyclic dynamic measuring device according to a second embodiment of the present invention will be described below. In each of the embodiments described below, the same reference numerals are assigned to the same components as the corresponding components of the first embodiment. These components will not be described in detail.

[0083] It is known that the reference value of the blood vessel hardness index VSI differs depending on the age of the subject. Therefore, the reference value of the blood vessel hardness index VSI is set according to the age of the subject. exist Figure 9 In the illustrated example, the display unit 19 displays a reference value S40 corresponding to a subject in his 40s at the center of the vertical axis, and also displays a reference value S30 corresponding to a subject in his 30s and a reference value S30 corresponding to a subject in his 30s. The reference value S50 corresponding to the subjects in their 50s. The reference values ​​S...

no. 3 example

[0087] The third embodiment of the present invention will be described below focusing on differences from the first embodiment.

[0088] In the third embodiment, the blood vessel stiffness index VSI1 obtained by dividing the blood vessel stiffness index VSI by the systolic blood pressure value SYS is used as the non-blood pressure circulatory dynamic index. The blood vessel stiffness index VSI1 is obtained according to equation (V1).

[0089] VSI1=VSI / SYS...(V1)

[0090] Such as Figure 10 As shown, the display unit 19 displays a graph including a horizontal axis representing the systolic blood pressure value SYS and a vertical axis representing the blood vessel hardness index VSI1. The reference value S2 of the blood vessel hardness index VSI1 is displayed at the center of the vertical axis.

[0091] As described above in detail, the third embodiment has the following effects.

[0092] (5) The blood vessel stiffness index VSI1 calculated by dividing the blood vessel stiff...

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Abstract

The circulatory dynamics measurement apparatus (10) comprises: a blood pressure-computing unit (18), which calculates the maximum blood pressure value (SYS); a vascular sclerosis-computing unit (17), which calculates the vascular sclerosis index (VSI); and a display unit (19) for displaying a graph having a horizontal axis that represents the maximum blood pressure and a vertical axis that represents the vascular sclerosis index. The display unit (19) displays the position determined by the calculated maximum blood pressure value and the calculated vascular sclerosis index in the plotting area of the graph.

Description

technical field [0001] The present invention relates to a circulatory dynamics measurement device that measures the state of a living body based on pulse waves obtained from the living body. Background technique [0002] In recent years, lifestyle-related diseases have been increasing. Lifestyle-related diseases are associated with the circulatory dynamics of the body, such as the heart and blood vessels. In one method for diagnosing arteriosclerosis, cuffs are attached to both arms and legs, a pulse wave is detected while keeping a predetermined pressure applied to the cuffed site for a specific time, and The pulse wave propagation velocity PWV is calculated from the pulse wave propagation time between them and the distance between these two positions to measure the blood vessel stiffness as a circulatory dynamic (Patent Document 1). In another method, blood vessel stiffness is measured based on CAVI (cardio ankle vascular index) which is less likely to depend on blood pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/022A61B5/0245
CPCA61B5/0225A61B5/02116A61B5/02225A61B5/6843A61B5/02007A61B5/7275A61B5/742G16H40/63G16H50/20G16H50/30
Inventor 井出和宏泉川雅人
Owner PANASONIC CORP
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