Fetal heart monitoring equipment

A technology of monitoring equipment and fetal heart rate, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as recording and inability to amplify sound signals, and achieve the effects of strong portability, healthy growth guarantee, and high safety

Active Publication Date: 2014-04-09
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

The passive detection method based on auscultation is safe and harmless to the fetus, but it has been gradually replaced by Doppler ultrasound equipment because it cannot amplify and record the sound signal

Method used

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] The invention provides a fetal heart rate monitoring system, which includes a sensor node and a personal gateway.

[0030] The structural block diagram of the fetal heart sound monitoring sensor node is as follows: figure 2 As shown, the sensor node includes a sensor and a transceiver unit. Among them, the sensor is used to convert the fetal heart signal into an electrical signal, and any sensor capable of converting a sound signal or a vibration signal into an electrical signal and having sufficient sensitivity can be used to implement this solution.

[0031] Preferably, the present invention can use acoustic sensors, such as using high-sensitivity microphones. The high-sensitivity microphone is mainly composed of a tapered resonant cavity and an electret microphone. The center of the tapered ...

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Abstract

The invention provides fetal heart monitoring equipment. The fetal heart monitoring equipment is characterized by comprising a sensing node and a personal gateway, the sensing node does not actively emit ultrasonic waves to a fetus but passively collect sounds or vibration on the surface of the abdomen of a pregnant woman to acquire fetal heart signals, and sends the fetal heart signals to the personal gateway in a wireless manner, and the personal gateway is used for processing the fetal heart signals sent by the sensing node to acquire a fetal heart rate. By the fetal heart monitoring equipment, the pregnant woman can wirelessly monitor health status of the fetus at home by herself for a long time, and using passive-type fetal heart sound monitoring does not pose a threat to health of the fetus; and the fetal heart monitoring equipment is especially suitable for monitoring of high-risk pregnant women.

Description

technical field [0001] The invention belongs to the field of electronic equipment and digital signal processing, in particular to a fetal heart rate monitoring device capable of long-term passive monitoring. Background technique [0002] During pregnancy, especially in the middle and late stages of pregnancy, various indicators of the fetus can be monitored to understand the health status of the fetus in the womb and detect fetal abnormalities early. The main purpose of monitoring the fetal heart rate is to obtain the real-time heart rate of the fetus. Whether the fetal heart rate is normal is an important indicator for judging whether the fetus is hypoxic in the mother's body. Therefore, fetal heart rate monitoring is an important item in pregnancy inspection. [0003] At present, fetal heart rate monitoring mainly adopts Doppler ultrasonography. The principle of Doppler ultrasound monitoring is to use a probe capable of emitting ultrasound to transmit ultrasound to the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B7/04A61B5/0245
Inventor 杨开姜汉钧张春王志华
Owner TSINGHUA UNIV
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