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Blood pressure measurement device

A sphygmomanometer and user technology, applied in blood vessel assessment, diagnostic recording/measurement, sensors, etc., can solve problems such as user burden, and achieve the effect of simple blood pressure

Inactive Publication Date: 2017-11-28
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a burden is placed on the user every time the blood pressure measurement is performed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0101] The wrist-watch type blood pressure measurement device 100 according to Embodiment 1 will be described. image 3 An example of use of the watch-type blood pressure measurement device 100 in Embodiment 1 is shown. Such as image 3 As shown, the blood pressure measurement device 100 captures an image of at least a part of the user's face while being worn on the user's wrist, and uses the image of at least a part of the face to measure the user's blood pressure.

[0102] [structure of blood pressure measurement device]

[0103] Here, refer to Figure 4A ~ Figure 4C , the structure of the blood pressure measurement device 100 of this embodiment will be described. Figure 4A It is a plan view of the blood pressure measurement device 100 according to the first embodiment. That is, Figure 4A The outer surface of the blood pressure measurement device 100 is shown. Figure 4B It is a bottom view of blood pressure measurement device 100 according to Embodiment 1. That is, ...

Embodiment approach 2

[0198] In Embodiment 2, when the amount of light irradiated on the user's face is insufficient, an instruction to move the position of the blood pressure measurement device is displayed based on the brightness of the image captured by the imaging unit.

[0199] In addition, the structure and functional configuration of the blood pressure measurement device according to the present embodiment are the same as or similar to those of the blood pressure measurement device according to Embodiment 1, and therefore illustration and description thereof will be appropriately omitted.

[0200] Figure 18 It is a diagram showing an example of an instruction given to the user by the blood pressure measurement device 200 according to the second embodiment.

[0201] The user is irradiated with light from the lighting fixture when indoors and light from the sun when outdoors. So basically, the light source is positioned above the user. When the user uses the blood pressure measurement devic...

Embodiment approach 3

[0210] In addition, as in Embodiment 2, if the wrist is raised to ensure the amount of light irradiated to the face, the pulse wave propagation time will change due to the influence of gravity, etc., so the estimation accuracy of blood pressure may decrease. . Therefore, in Embodiment 3, the content of the instruction for backlighting is changed according to the position (height) of the wrist.

[0211] In addition, the structure and functional configuration of the blood pressure measurement device according to the present embodiment are the same as or similar to those of the blood pressure measurement device according to Embodiment 1, and therefore illustration and description thereof will be appropriately omitted.

[0212] Figure 20 as well as Figure 21 It is a diagram showing an example of an instruction given to the user by the blood pressure measurement device 300 according to the third embodiment. Such as Figure 20 In that way, a threshold height (for example, 30 d...

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Abstract

A blood pressure measurement device includes an annular bracelet that comes into contact with the user's wrist; a display that is disposed on the outer surface of the bracelet and includes a display surface; a camera that is disposed on the outer surface of the bracelet, has an optical axis tilted from the direction of a normal to the display surface, and captures images of the user; a pulse wave sensor that is disposed on an inner surface of the bracelet and detects a pulse wave at the user's wrist; and a processing circuit that estimates the user's blood pressure. The processing circuit calculates a first pulse wave timing from a temporal change in luminance in the cheek region in the images, determines a second pulse wave timing from the detected pulse wave, and estimates the blood pressure from a time difference between the first and second pulse wave timings.

Description

technical field [0001] The present disclosure relates to a blood pressure measurement device that is worn on a user's wrist and measures blood pressure using an image of the user. Background technique [0002] Patent Document 1 discloses a device that measures blood pressure or pulse using images of a user's face and hands captured by a camera mounted on a smartphone or the like. [0003] In addition, Patent Document 2 discloses a device that calculates blood pressure using a user's pulse wave acquired by a wristwatch-type device and electrocardiogram obtained when the user touches the device. [0004] prior art literature [0005] Patent Document 1: International Publication No. 2014 / 136310 [0006] Patent Document 2: Japanese Patent Laid-Open No. 2012-12581 Contents of the invention [0007] In the conventional technology disclosed in Patent Document 1, in order to measure blood pressure, it is necessary to photograph both the hand and the face with a camera. As a re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/021A61B5/00
CPCA61B5/0077A61B5/02125A61B5/681A61B5/1176A61B5/684A61B5/7278A61B5/7445A61B2562/0233A61B2576/00G16H30/40
Inventor 村上健太吉冈元贵小泽顺
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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