Unlock instant, AI-driven research and patent intelligence for your innovation.

Electronic sphygmometer

An electronic sphygmomanometer and pressure technology, applied in vascular assessment, cardiac catheterization, etc., can solve the problems of low decompression speed, inability to maintain decompression speed, and time-consuming, and achieve the effect of extending the measurement time.

Active Publication Date: 2009-09-09
CITIZEN WATCH CO LTD
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the control device disclosed in the above-mentioned Patent Document 1, when the pulse rate is small and the pulse wave period is long, the interval between the change of the opening degree of the exhaust valve and the time before the next change becomes long, and during this period, the opening degree of the exhaust valve The opening degree is fixed, so the decompression speed will be lower than the desired speed until the next change of the exhaust valve opening degree
In other words, when the pulse rate is small, there is a problem that the decompression speed cannot be maintained at the desired speed with high precision.
In addition, in the sphygmomanometer disclosed in the above-mentioned Patent Document 2, since the exhaust volume per pulse beat is fixed, when the pulse rate is small, there is a problem that decompression is performed until the blood pressure value is determined. takes time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electronic sphygmometer
  • Electronic sphygmometer
  • Electronic sphygmometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] figure 1 It is a block diagram showing the overall configuration of the electronic sphygmomanometer according to Embodiment 1 of the present invention. Such as figure 1 As shown, the electronic sphygmomanometer includes: a cuff 1, a pressure detection mechanism 2, a pressurizing mechanism 3, a decompression mechanism 4, a display mechanism 5, an operating mechanism 6 and a microcomputer (hereinafter referred to as a microcomputer) 7. The cuff 1 is connected with the pressure detection mechanism 2 , the pressurization mechanism 3 and the decompression mechanism 4 through the conduit 8 .

[0037] The pressure detection mechanism 2 detects the pressure in the cuff 1 . The pressure detection mechanism 2 is constituted by, for example, a pressure sensor. The pressurizing mechanism 3 pressurizes the cuff 1 according to the output signal of the microcomputer 7 . The pressurizing mechanism 3 is constituted by, for example, a pump that sends a fluid such as air (hereinafter ...

Embodiment approach 2

[0068] Figure 9 It is a block diagram showing the overall configuration of the electronic sphygmomanometer according to Embodiment 2 of the present invention. Such as Figure 9 As shown, the electronic sphygmomanometer includes: a cuff 1, a pressure detection mechanism 2, a pressurizing mechanism 3, a rapid exhaust mechanism 9, a display mechanism 5, an operating mechanism 6 and a microcomputer (hereinafter referred to as a microcomputer) 7. The cuff 1 is connected with the pressure detecting mechanism 2 , the pressurizing mechanism 3 and the rapid exhaust mechanism 9 through the conduit 8 . Embodiment 2 measures blood pressure while cuff 1 is being pressurized.

[0069] The rapid exhaust mechanism 9 rapidly exhausts the air and the like in the cuff 1 based on the output signal of the microcomputer 10 when the blood pressure measurement is completed. The rapid exhaust mechanism 9 is constituted by, for example, an exhaust valve. The pressure detecting mechanism 2 , the pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a controlled value correction tables (24) defining the relations among the pulse rate, the difference between the pressure reducing rate of the cuff and the target pressure reducing rate, and the correction of the controlled value for controlling the opening of the exhaust valve of pressure reducing means (4) are made according to the pulse rate. Pressure detecting means (2) detects the pressure of the cuff. Pressure reducing rate calculating means (21) determines the difference of the pressure reducing rate. Pulse rate calculating means (14) calculates the pulse rate. Controlled value correction table selecting means (23) selects a controlled value correction table (24) depending on the pulse rate. Controlled value correction determining means (25) determines the correction of the controlled value according to the difference of the pressure reducing rate by referencing the selected controlled value correction table (24). Controlled value correcting means (26) adds the correction to the current controlled value to use the sum as a new controlled value.

Description

technical field [0001] The invention relates to an electronic sphygmomanometer, in particular to an electronic sphygmomanometer which measures blood pressure while controlling the pressure inside the cuff. Background technique [0002] There is a method of measuring blood pressure in an electronic sphygmomanometer. The pressure in the cuff (hereinafter referred to as cuff pressure) is increased to a pressure sufficiently higher than the maximum blood pressure, and then gradually lowered while measuring blood pressure. In order to make the decompression speed of the cuff a desired speed, the electronic sphygmomanometer of this method adjusts the opening degree of the exhaust valve connected to the cuff during the decompression process to adjust the exhaust volume. The air exhaust volume in the cuff, under the condition that the opening degree of the exhaust valve is fixed, the greater the pressure difference between the inside and outside of the cuff, the larger it is, and th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0225
CPCA61B5/02141A61B5/022
Inventor 伊藤清中西孝
Owner CITIZEN WATCH CO LTD