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Detection method for blood pressure monitor with korotkoff sound delaying and pulse wave conducting time, and signal generator applying the same

A technology of conduction time and signal generating device, which is applied in the direction of cardiac catheterization, etc., and can solve problems such as not being able to meet the mutual coordination of blood pressure monitors

Active Publication Date: 2009-03-11
浙江康莱特健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned invention proposes a brand-new concept of arterial blood pressure measurement. Like other medical equipment, the above-mentioned blood pressure monitoring device also needs to be calibrated with corresponding detection instruments when manufacturing the above-mentioned blood pressure monitoring device. However, the existing ECG signal generator, blood pressure Devices such as signal generators cannot meet the requirements of the above-mentioned blood pressure monitor for multi-signal and various signals to coordinate with each other and meet a certain relationship

Method used

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  • Detection method for blood pressure monitor with korotkoff sound delaying and pulse wave conducting time, and signal generator applying the same
  • Detection method for blood pressure monitor with korotkoff sound delaying and pulse wave conducting time, and signal generator applying the same
  • Detection method for blood pressure monitor with korotkoff sound delaying and pulse wave conducting time, and signal generator applying the same

Examples

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Effect test

Embodiment 1

[0039] This example is a kind of device that adopts the method of the present invention-the Korotkoff sound delay time and pulse wave transit time signal generator.

[0040] The structure of this device is as Figure 4 Shown: There is a central control single-chip microcomputer, a memory for storing data including ECG, pulse wave, respiration, and Korotkoff sound waveforms. The single-chip microcomputer is connected to the analog signal output of the human body through a digital / analog converter and a signal conditioning circuit. ;

[0041] The structure of the cuff pulse wave pressure signal generating device in this example is as follows: an air storage device is provided, its input end is connected with an inflatable motor controlled by a single-chip microcomputer, and the output end is connected with the cuff through an air circuit switch controlled by a single-chip microcomputer.

[0042] The generation method of physiological signal adopting this device is:

[0043] Re...

Embodiment 2

[0047] This example is several specific implementation working modes of the method of the present invention.

[0048] Aiming at several main detection processes of blood pressure monitoring using Korotkoff sound delay time and pulse wave transit time disclosed in ZL200510071813.0 and PCT / CN2005 / 001210 patent applications, this example sets several working modes suitable for different detection processes. The following describes them one by one:

[0049] 1. This working mode is aimed at the following detection process of the blood pressure monitor: After the blood pressure monitor obtains the PWTT coefficients a and b in the calculation formula, it calculates the blood pressure value BP by measuring PWTT.

[0050] 1-1. Brief description of the detection process of the blood pressure monitor:

[0051] According to the relationship between PWTT and beat-by-beat arterial blood pressure BP:

[0052] BP=a+b*PWTT...(A)

[0053] Where BP is arterial blood pressure, PWTT is pulse wa...

Embodiment 3

[0090] The difference from Embodiment 2 is that in the 2-2 working mode, Embodiment 2 expresses the Korotkoff sound delay time T by the time interval from the cuff pulse wave starting point to the Korotkoff sound arrival moment K In this example, the Korotkoff sound delay time T is expressed by the time interval from the peak value of the ECG R wave to the moment when the Korotkoff sound arrives. K signal (see figure 1 ), start timing from the peak value of the ECG R wave, and output the starting point and subsequent waveforms of the Korotkoff sound signal when the Korotkoff sound delay time of the set blood pressure is reached.

[0091] In this example, the relationship curve T between the Korotkoff sound delay time and blood pressure K (P) Stored in the computer, the setting method is: describe the relationship curve T between the Korotkoff sound delay time and blood pressure through several parameters and an equation K (P), stored in the known curve T in advance K (P) eq...

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Abstract

The present invention is blood pressure monitor detecting method and Korotkoff sound delaying and pulse wave conducting time signal generator. The detection method includes outputting several analog signals through digital synthesis on the computer stored data of respiration, cardioelectric, pulse wave and Korotkoff sound signals; setting computer controlled cuff pulse wave pressure generator, and determining the amplitudes and relations of the essential signals based on the relevant blood pressure detecting principle to form simulating human body signals essential for detecting blood pressure monitor and corresponding Korotkoff sound delaying and pulse wave conducting time signals; and feeding these signals to the blood pressure monitor to inspect the identity between the detection results of the blood pressure monitor and the set data of the signal generator.

Description

technical field [0001] The invention belongs to a detection method and device for medical equipment, in particular to a detection method and device for an arterial blood pressure monitoring device. Background technique [0002] In the field of blood pressure measurement technology, it is generally accepted that pulse wave transit time can be used as a non-invasive and continuous method for measuring blood pressure. In 1922, it was discovered that pulse wave velocity (PWTV) or conduction time (PWTT) was related to arterial blood pressure, and also related to blood vessel volume and blood vessel wall elasticity; in 1957, it was proposed that within a certain range, PWTT and arterial pressure There is a linear relationship between blood pressure and BP. The relationship between PWTT and beat-to-beat arterial blood pressure BP can be expressed as: [0003] BP=a+b*PWTT...(A) [0004] Among them, BP is arterial blood pressure, PWTT is pulse wave transit time, a and b are undete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0225
Inventor 杨福生刘延勇谢敏
Owner 浙江康莱特健康科技有限公司
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