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Increment index determining equipment and arteriosclerosis checking equipment

A device and index technology, applied in the fields of medical science, sensors, blood vessel evaluation, etc., can solve the problem of inaccurate index and achieve the effect of high accuracy

Inactive Publication Date: 2003-07-30
FUKUDA DENSHI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if according to Figure 1B If the increase index of the pulse wave shown in the arm is determined by the conventional method, the index is inaccurate

Method used

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  • Increment index determining equipment and arteriosclerosis checking equipment
  • Increment index determining equipment and arteriosclerosis checking equipment
  • Increment index determining equipment and arteriosclerosis checking equipment

Examples

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Embodiment Construction

[0026] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. figure 2 is a schematic diagram showing the circuit of an arteriosclerosis inspection apparatus 10 to which the present invention is applied.

[0027] exist figure 2 In, reference numeral 12 denotes an inflatable wristband, which includes a band-shaped cloth bag and a rubber bag housed in the cloth bag, and which is adapted to be worn around the upper arm 14 of a patient who is a living recipient. Wristband 12 is connected to pressure sensor 16 and pressure control valve 18 by a tube 20 . The pressure control valve 18 is connected to an air pump 24 through a pipe 22 . The pressure control valve 18 regulates the pressure of the pressurized air supplied by the air pump 24 and supplies the pressure-regulated air to the cuff 12 or discharges the pressurized air from the cuff 12 to control the air pressure in the cuff 12 .

[0028]The pressure sensor 16 ...

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Abstract

An augmentation-index determining apparatus (10), including a cuff (12), a cuff-pressure changing device (16,18,24,50), a pulse-wave extracting device (28), means (54) for determining the times of occurrence of the peak points of the incident and reflected wave components during cuff-pressures higher than the systolic blood pressure, and lower than the mean blood pressure of the subject, and means (56) for determining an augmentation-index based on the magnitudes and times of occurrence of the determined peaks.

Description

technical field [0001] The present invention relates to an increase index determination device which determines the increase index of a living subject, and an arteriosclerosis examination device which examines the arteriosclerosis of a subject based on the increase index of the subject. Background technique [0002] The increase index is generally called AL, which represents the ratio of the reflected wave component of a pulse wave to the incident wave component of the pulse wave, and is used to evaluate the compliance of the aorta. The greater the compliance, the smaller the reflected wave component, and the smaller the compliance, the larger the reflected wave component. That is, the stiffer the aorta, the larger the reflected wave component of the aortic pulse wave. Thus, an increasing index indicates arteriosclerosis, and is thus used as an index to examine or detect it. [0003] As described above, the increase index represents the ratio of the reflected wave componen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0245A61B5/02A61B5/022A61B5/0225
CPCA61B5/02007A61B5/022A61B5/02225A61B5/02
Inventor 小椋敏彦成松清幸反保明本田孝
Owner FUKUDA DENSHI CO LTD
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