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Fetal electrocardiogram orthorhombic lead system

A lead system and electrocardiogram technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as weak signals and difficult detection, and achieve the effect of reducing interference and common mode interference

Inactive Publication Date: 2013-03-20
HENAN HUANAN MEDICAL SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the fetal ECG signal is transmitted to the surface of the mother's body through the amniotic fluid and many tissues of the mother's body, the signal is relatively weak, about 1 / 10 of the mother's body, coupled with the interference of the mother's myoelectricity and space, it is more difficult to detect

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  • Fetal electrocardiogram orthorhombic lead system
  • Fetal electrocardiogram orthorhombic lead system
  • Fetal electrocardiogram orthorhombic lead system

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and example the present invention will be further described:

[0019] Such as figure 1 As shown, the present invention includes a chest lead electrode V1, three abdominal lead electrodes P1, P2, P3, a common terminal electrode COM and a ground electrode GND. The chest lead electrode is placed at the position of the standard lead V1 as a reference electrode for identifying the fetal ECG. Three abdominal lead electrodes P1, P2, and P3 are placed at the cervix to collect mixed ECG signals of the mother and the fetus. A common terminal electrode COM is placed at the fundus of the uterus as the common terminal of the chest and abdominal lead electrodes. A grounding electrode GND is placed on the lowermost rib under the right midaxillary line as the grounding terminal.

[0020] Such as figure 2 As shown, the positions of the abdominal lead electrodes P1, P2, and P3 have a component in the sagittal plane relative to the mater...

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Abstract

The invention discloses a fetal electrocardiogram orthorhombic lead system, which comprises a chest lead electrode V1, three abdomen lead electrodes P1, P2 and P3, a public common terminal electrode COM and a grounding electrode GND, wherein the abdomen lead electrodes P1, P2 and P3 are arranged at an uterine orifice; the common public terminal electrode COM is arranged at the bottom of a uterus; and the grounding electrode GND is arranged a lowermost rib below a right armpit middle line. Due to the adoption of the orthorhombic lead system, clean fetal electrocardiosignals are obtained; and an orthorhombic lead plane is utilized, so that interference is reduced greatly, and the detectable rate of fetal electrocardiograms is increased.

Description

technical field [0001] The invention relates to the field of medical electrocardiograms, in particular to an orthogonal lead system for fetal electrocardiograms. Background technique [0002] Fetal electrocardiogram is a graph of fetal heart action potential and its conduction process in the heart recorded by the abdominal wall of the pregnant mother or the body surface of the fetus. The fetal electrocardiogram carries a wealth of fetal heart activity information, from which not only the fetal heart rate can be detected, but also the changes of the ECG waveform caused by physiological and pathological reasons can be detected. Since the fetal ECG signal is transmitted to the surface of the mother's body through the amniotic fluid and many tissues of the mother's body, the signal is weak, about 1 / 10 of that of the mother's body. Coupled with the interference of the mother's myoelectricity and space, it is difficult to detect. Contents of the invention [0003] In view of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0444A61B5/344
Inventor 夏振宏陈连喜陈广元
Owner HENAN HUANAN MEDICAL SCI & TECH
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