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Cardiac electric axis and clockwise transposition measuring tray

A technology of clock direction indexing and measuring discs, which is applied in diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of complex measurement methods and difficult judgment of degrees, and achieve fast and accurate measurement, easy to grasp the method, and easy mechanism Effect

Inactive Publication Date: 2013-02-20
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing ECG axis measurement methods, such as complex measurement methods and difficult judgment of the specific degree, the present invention provides an electrocardiogram combined with the amplitude method and the visual method, with fast and accurate measurement, an easy-to-understand mechanism, and an easy-to-master method. Shaft and clockwise index measuring disc

Method used

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  • Cardiac electric axis and clockwise transposition measuring tray
  • Cardiac electric axis and clockwise transposition measuring tray
  • Cardiac electric axis and clockwise transposition measuring tray

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Embodiment 1

[0016] refer to Figure 1 to Figure 2 , the electrocardiographic axis and the clockwise transposition measuring disk, including the measuring disk main body, the frontal plane six-axis system is provided on the front of the measuring disk main body, and the frontal plane six-axis system is composed of six limb leads; A rotating pointer used for ECG axis measurement; a clockwise transposition pattern is provided on the back, and the clockwise transposition pattern is composed of sixteen chest leads surrounding the heart.

[0017] Further, scales are provided between the six limb leads.

[0018] Technical idea of ​​the present invention is:

[0019] 1. According to the principle of ECG vector, in the lead with the highest or deepest QRS wave amplitude among the six limb leads, the ECG axis is close to this lead. At this time, turn the pointer to this lead; then find out the six limb leads The lead with the second highest or deepest amplitude in the joint, the ECG axis is locat...

Embodiment 2

[0022] refer to image 3 , judge the cardiac axis by measuring the disc. It can be seen that the largest QRS wave group amplitude is lead II, so turn the pointer to lead II, and the second largest QRS wave group amplitude is lead I, so the ECG axis is in the middle of lead I and lead II. The amplitude of lead II is the highest, so the pointer should be biased to the degree corresponding to lead II, that is, around 50°. According to the knowledge learned, an ECG axis of 50° is a normal ECG (0°~+90°—normal, +90°~+180°—right deviation—right ventricular hypertrophy, 0°~-90°—left deviation—left anterior branch block, -90°~-180°—extreme right deviation).

[0023] refer to Figure 4 , to determine the clock direction index. The figure that V5 corresponds to is exactly the figure that V3 corresponds to on the measuring disc, so we turn the V3 figure on the measuring disc to the position of V5, so that from V3 to V5, that is, turning clockwise, a clockwise transposition occurs , an...

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Abstract

The invention discloses a cardiac electric axis and clockwise transposition measuring tray which comprises a measuring tray main body, wherein a frontal plane six-axis system is arranged on the front surface of the measuring tray main body and comprises six limb leads; a rotatable indicator for measuring the cardiac electric axis is arranged in the middle of the measuring tray main body; a clockwise transposition pattern is arranged on the back surface of the measuring tray main body and comprises sixteen chest leads surrounding the heart; and marks are arranged among the six limb leads. The cardiac electric axis and clockwise transposition measuring tray has the advantages that two types of contents are skillfully combined together, the twenty-two leads clinically used are shown in a mould, and the frontal plane, the horizontal plane and the leads are also shown, which assists students in better understanding and mastering the electrocardiology principle in the learning process of electrocardio basic knowledge.

Description

technical field [0001] The invention relates to an electrocardiographic axis and a clock direction indexing measuring disk. Background technique [0002] There are two conventional methods for determining the mean cardiac axis: the amplitude method and the visual method. The amplitude method is to determine the cardiac axis by calculating the QRS wave group amplitude of leads I and III. This method is accurate but troublesome. ECG Figure I And aVF leads or I and III leads to judge the ECG axis, the method is simple, but the specific degree is not easy to judge. Contents of the invention [0003] In order to overcome the disadvantages of the existing ECG axis measurement methods, such as complex measurement methods and difficult judgment of the specific degree, the present invention provides an electrocardiogram combined with the amplitude method and the visual method, with fast and accurate measurement, an easy-to-understand mechanism, and an easy-to-master method. Axia...

Claims

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Application Information

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IPC IPC(8): A61B5/0402A61B5/0452
Inventor 潘大明陈海霞黄晓惠
Owner HANGZHOU NORMAL UNIVERSITY
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