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Detection method with blood pressure monitor and korotkoff sound delaying and pulse wave conducting time signal generator

A technology of conduction time and detection method, applied in the direction of cardiac catheterization, etc., can solve the problems that cannot meet the mutual coordination of blood pressure monitors

Active Publication Date: 2007-03-21
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 with blood pressure monitor and korotkoff sound delaying and pulse wave conducting time signal generator
  • Detection method with blood pressure monitor and korotkoff sound delaying and pulse wave conducting time signal generator
  • Detection method with blood pressure monitor and korotkoff sound delaying and pulse wave conducting time signal generator

Examples

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Embodiment 1

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

[0040] The structure of this device is shown in Figure 4: It is equipped with a central control microcontroller, a memory used to store data including ECG, pulse wave, respiration, and Korotkoff sound waveform. The microcontroller is connected with the digital / analog converter and signal conditioning circuit through a digital / analog converter and a signal conditioning circuit. Human body analog signal output terminal connection;

[0041] The structure of the cuff pulse wave pressure signal generating device in this example is: equipped with a gas storage device, 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 a gas circuit switch controlled by the single-chip microcomputer.

[0042] The method of generating physiological sig...

Embodiment 2

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

[0048] In view of the several main detection processes disclosed in ZL200510071813.0 and PCT / CN2005 / 001210 patent applications that use Korotkoff sound delay time and pulse wave transit time to monitor blood pressure, this example sets several working modes that adapt to their 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 the PWTT.

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

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

[0052] BP=a+b*PWTT ……(A)

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

Embodiment 3

[0089] 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 start point of the cuff pulse wave to the Korotkoff sound arrival time. K Signal, in this example, the time interval between the peak of the ECG R wave and the arrival of the Korotkoff sound is expressed as the Korotkoff sound delay time T K The signal (see Figure 1) starts timing from the peak value of the ECG R wave. When the Korotkoff sound delay time of the set blood pressure is reached, the starting point of the Korotkoff sound signal and subsequent waveforms are output.

[0090] In this example, the relationship curve between the Korotkoff sound delay time and blood pressure T K (P) Stored in the computer, its setting method is: describe the relationship curve T between Korotkoff sound delay time and blood pressure through several parameters and an equation K (P), pre-store the known curve T K (P) equation parameters, ...

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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 to measure blood pressure. Pulse wave transit time refers to the time that the pulse wave travels between two points in the body’s arterial system. In 1922, it was discovered that pulse wave conduction velocity (PWTV) or transit time (PWTT) is related to arterial blood pressure, as well as blood vessel volume and vascular wall elasticity; in 1957, it was also proposed that PWTT and arterial There is a linear relationship between blood pressure and BP. The relationship between PWTT and beat-by-beat arterial blood pressure BP can be expressed as: [0003] BP=a+b*PWTT ……(A) [0004] Where BP is arteri...

Claims

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Application Information

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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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