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LCD screen electro-cardio R-R interval left-aligning wave-by-wave display method and device

A display device, left-aligned technology, used in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of missing key ECG waveform features, small LCD screen resolution, insufficient and other problems

Inactive Publication Date: 2009-04-15
ZHEJIANG UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This simple display method is very impractical for home-use pocket ECG monitors. The LCD screen is too small or the resolution is not enough, resulting in a small ECG curve and missing key ECG waveform features due to insufficient resolution, especially Common arrhythmia problems are hard to see intuitively

Method used

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  • LCD screen electro-cardio R-R interval left-aligning wave-by-wave display method and device
  • LCD screen electro-cardio R-R interval left-aligning wave-by-wave display method and device
  • LCD screen electro-cardio R-R interval left-aligning wave-by-wave display method and device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with drawings and embodiments.

[0022] The electrocardiographic recording and display device controlled by a single-chip microcomputer or a microcontroller is used to sample the electrocardiographic data, and intelligently identify the R wave or abnormal situation in the electrocardiographic wave group. There are many ways to identify the R wave. According to the obvious characteristics of the R wave: the slope and amplitude are the largest, and they are much larger than other waves in the wave group. Therefore, it is a simple and basic method to judge the R wave with the largest slope and amplitude. It is easy to be realized by an electrocardiogram recording and display device controlled by a single-chip microcomputer or a microcontroller, and of course it also includes R-R interval calculation and abnormal heartbeat detection.

[0023] As shown in Figure 1, the steps of the method are as follows:

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Abstract

The invention discloses a liquid crystal screen electrocardio R-R interval left alignment wave continuous display method and a device. The method comprises the following steps: using an electrocardio record display system device controlled by a singlechip or a microcontroller to sample electrocardio data and intelligently identify R waves or abnormalities of an electrocardio wave group. On the basis of identifying the R waves, the method allows an electrocardiogram to be displayed into R-R interval electrocardio waveform curves with left aligned R waves by controlling that each frame display starts from the uniform position of one point prior to each R wave, and ensures that an R-R interval electrocardio wave group curve is sufficiently displayed on a display area of a small liquid crystal screen, and a waveform is detailed and comparable and the arrhythmia problem is intuitive; and a normal electrocardio waveform displays quickly, and pauses when encountering a problem, and an abnormal electrocardiowave form is identified by people. Due to the particularity of the display method, a circuit for preventing an electrocardio base line from moving up and down and deviating is arranged in the device. The method is particularly applied to small liquid crystal display screens for household mini-electrocardio monitors.

Description

technical field [0001] The invention relates to a method for displaying an electrocardiogram of a medical instrument, in particular to a method and a device for displaying a left-aligned R-R interval of an electrocardiogram on a liquid crystal screen. Background technique [0002] The application of electrocardiogram has a history of 20 to 30 years, especially the rapid development of computer technology in the past ten years. Single-chip microcomputer (also called microcontroller), high-capacity FLASH non-volatile memory, LCD liquid crystal display, rechargeable lithium-ion battery and The high-performance integrated instrumentation amplifier IC constitutes a system for ECG recording and display that is very mature and typical. But the ECG they show is still a long series of continuous heart wave curves on an EKG chart, as often seen in hospital rooms or on TV. This simple display method is very impractical for home-use pocket ECG monitors. The LCD screen is too small or t...

Claims

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Application Information

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IPC IPC(8): A61B5/044A61B5/0452
Inventor 金隐华
Owner ZHEJIANG UNIV
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