Fetus-voice meter and fetal heart monitor all-in-one machine

Abstract

The invention provides a fetal heart meter and fetal heart monitor all-in-one machine which is characterized in that an electronic component containing space is defined by a fetal heart monitor all-in-one machine lower shell and a fetal heart monitor all-in-one machine upper shell, a power supply is in power supply connection with a control key panel and a main control circuit board, and the main control circuit board is in control connection with a ceramic chip array assembly. The control key panel is in control connection with the main control circuit board, the ceramic chip array assembly comprises a plurality of piezoelectric ceramic chips arranged on the inner surface of the lower shell of the fetal heart rate monitoring all-in-one machine in an array mode, the piezoelectric ceramic chips at least comprise piezoelectric ceramic chips with two frequencies, and the working frequency bands of the ceramic chip array assembly comprise 2.5 MHz to 3MHz + / -15%, 2MHz + / -15%, 1.5 MHz + / -15% and 1MHz + / -15%. The invention has the beneficial effects that a fetus-voice meter and a fetus ECG monitor can be combined into one, and the fetus-voice meter is suitable for pregnant women in different periods of small gestational weeks and large gestational weeks.

Description

Technical Field

[0001] This invention relates to the field of fetal heart rate monitoring technology, specifically to an integrated fetal heart rate monitor and fetal heart rate instrument. Background Technology

[0002] Both fetal heart rate monitors and fetal monitors are essential instruments used to detect fetal heart rate during pregnancy. Both utilize ultrasonic Doppler technology. Regarding usage time, fetal heart rate monitors are generally used from week 9 of pregnancy throughout the entire pregnancy, with each handheld session lasting a few minutes. Fetal heart rate monitors are generally used from week 28 of pregnancy until delivery, with each session lasting 20 minutes. If the monitoring results are unsatisfactory, the session may need to be extended to 40 minutes or even longer. During use, a strap should be used to secure the monitor to the abdomen. The ultrasound probes in fetal heart rate monitors and fetal monitors typically employ two operating modes: one is a pulse mode, where the piezoelectric ceramic wafer (chip) works as a transceiver, both emitting and receiving reflected ultrasound echo signals; the other is a continuous mode, where one set of chips continuously emits ultrasonic excitation signals, and another set continuously receives reflected ultrasound echo signals.

[0003] Fetal heart rate monitors and fetal heart rate monitors are used in different scenarios. Although both use the Doppler ultrasound principle, their product forms differ significantly. Fetal heart rate monitors are generally handheld and come in two forms: integrated and separate. Integrated monitors combine the probe and main unit (display and fetal heart rate output) into one unit; separate monitors have the probe and main unit separate, and the user holds the probe against the abdomen to monitor the fetal heart rate. Fetal heart rate monitors, on the other hand, require prolonged monitoring and are usually secured to the abdomen with a strap, and are used simultaneously with a contraction probe to detect the strength of uterine contractions. Due to the different gestational weeks, the operating frequencies of the ultrasound probes in fetal heart rate monitors and fetal heart rate monitors also differ. Fetal heart rate monitors typically operate at 2.5MHz-3MHz with 1-5 chips, while fetal heart rate monitors typically operate at 1MHz-2MHz with 6-16 chips.

[0004] In early pregnancy (e.g., 9 weeks), the fetal heart rate is small and the heartbeat is weak, making it very difficult to locate the heart and requiring considerable patience. Since fetal heart rate monitors are generally used from 9 weeks of pregnancy, and fetal heart rate monitoring devices are generally used from 28 weeks, both are necessary for fetal heart rate monitoring throughout the entire pregnancy. Considering that more and more pregnant women are buying or renting fetal heart rate monitors, it is very inconvenient to hold a fetal heart rate monitor for several minutes to observe the trend of fetal heart rate changes or the STV (Short Time Variability, requiring at least 5 minutes of fetal heart rate data). Furthermore, to reduce the cost of fetal heart rate monitoring (usually fetal heart rate monitors are purchased in early pregnancy; after 28 weeks, renting fetal heart rate monitoring devices is the primary method), combining the two into one device is a user need that needs to be met. Summary of the Invention

[0005] To address the problems in existing technologies, this invention provides an integrated fetal heart rate monitor and fetal heart rate measurement device. This integrated device comprises a lower casing, an upper casing, a main control circuit board, a power supply, a ceramic plate array assembly, and a control panel. The main control circuit board controls the ceramic plate array assembly to switch between different operating frequency bands based on the control commands from the control panel to perform fetal heart rate detection and monitoring. This integrates the fetal heart rate monitor and fetal heart rate measurement device into one unit, making it suitable for pregnant women at different stages of pregnancy, thus solving the problem of the inconvenience of separate fetal heart rate monitors and fetal heart rate measurement devices required for different stages of pregnancy in existing technologies.

[0006] This invention provides an integrated fetal heart rate monitor and fetal heart rate instrument, comprising a lower housing, an upper housing, a main control circuit board, a power supply, a ceramic plate array assembly, and a control button panel. The lower housing and the upper housing are detachably connected and form an electronic component housing. The main control circuit board, the power supply, and the ceramic plate array assembly are all housed within the electronic component housing. The power supply is connected to the control button panel and the main control circuit board, and the main control circuit board is connected to the ceramic plate array assembly. The control button panel is connected to the main control circuit board. The circuit board controls the connection, and the ceramic plate array assembly includes multiple piezoelectric ceramic plates arranged in an array on the inner surface of the lower housing of the fetal heart rate monitoring integrated machine. The multiple piezoelectric ceramic plates include piezoelectric ceramic plates of at least two frequencies. The operating frequency band of the ceramic plate array assembly includes a fetal heart rate detection frequency band of 2.5MHz to 3MHz±15% for fetal heart rate detection starting from 9 weeks of gestation and a fetal heart rate monitoring frequency band of 2MHz±15%, 1.5MHz±15%, and 1MHz±15% for fetal heart rate monitoring starting from 24 weeks of gestation. The main control circuit board can control the ceramic plate array assembly to switch between different operating frequency bands to complete fetal heart rate detection and fetal heart rate monitoring according to the control instructions of the control button panel.

[0007] In a further improvement, the lower housing and upper housing of the integrated fetal heart rate monitor are provided with fixing through holes for the strap to pass through, and the strap can fix the fetal heart rate monitor and the integrated fetal heart rate monitor to the user's abdomen.

[0008] In a further improvement to the present invention, the number of the piezoelectric ceramic sheets is not less than 6.

[0009] In a further improvement to the present invention, the number of the piezoelectric ceramic sheets is no more than 16.

[0010] The present invention is further improved in that the piezoelectric ceramic sheet is in the shape of a circular sheet, a semi-circular sheet, an annular sheet, or a square sheet.

[0011] The present invention is further improved in that the inner surface of the lower housing of the fetal heart monitoring device is provided with a plurality of ceramic plate mounting grooves, which are adapted to the piezoelectric ceramic plates.

[0012] The present invention is further improved in that the outer surface of the lower shell of the fetal heart monitoring device is an arc shape that fits in close to the human abdomen.

[0013] The present invention is further improved in that both the lower shell and the upper shell of the integrated fetal heart monitoring device are circular.

[0014] In a further improvement to the present invention, the main control circuit board can also automatically select the operating frequency band based on the signal strength fed back by the ceramic plate array component.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides an integrated fetal heart rate monitor and fetal heart rate detector. By incorporating a lower housing, an upper housing, a main control circuit board, a power supply, a ceramic plate array assembly, and a control button panel within the integrated fetal heart rate monitor and fetal heart rate detector, the main control circuit board can control the ceramic plate array assembly to switch between different operating frequency bands according to the control commands from the control button panel to complete fetal heart rate detection and fetal heart rate monitoring. This integrates the functions of a fetal heart rate monitor and a fetal heart rate detector into one unit, suitable for pregnant women at different stages of pregnancy, including early and late gestational weeks. It can function as a fetal heart rate monitor to detect fetal heart rate. It can be used for heart rate monitoring and also as a fetal heart rate probe for long-term fetal heart rate monitoring. In actual use, the main control circuit board automatically selects the strongest signal channel, eliminating the need for manual selection of the operating frequency. When used as a fetal heart rate monitor, it can operate in continuous wave mode for good fetal heart sound quality, or in pulse wave mode for a wider ultrasound sound field. When used as an ultrasound probe for a fetal heart rate monitor, considering the need for the largest possible sound field range during long-term monitoring, the pulse wave mode is adopted. This solves the problem in existing technologies where pregnant women at different stages of pregnancy need to use separate fetal heart rate monitors and fetal monitors. Attached Figure Description

[0016] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the structure of an integrated fetal heart rate monitor and fetal heart rate measurement device according to the present invention.

[0018] Figure 2 This is a structural diagram of an integrated fetal heart rate monitor and fetal heart rate measurement device according to the present invention.

[0019] In the figure, 1-lower housing of the fetal heart rate monitor, 11-ceramic plate mounting groove, 2-upper housing of the fetal heart rate monitor, 3-main control circuit board, 4-power supply, 5-ceramic plate array assembly, 51-piezoelectric ceramic plate, 6-control button panel, 7-fixed through hole. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figures 1-2As shown, the present invention provides an integrated fetal heart rate monitor and fetal heart rate instrument, comprising a lower housing 1, an upper housing 2, a main control circuit board 3, a power supply 4, a ceramic plate array assembly 5, and a control button panel 6. The lower housing 1 and the upper housing 2 are detachably connected and form an electronic component housing space. The main control circuit board 3, the power supply 4, and the ceramic plate array assembly 5 are all disposed within the electronic component housing space. The power supply 4 is connected to the control button panel 6 and the main control circuit board 3 for power supply. The ceramic plate array assembly 5 is connected to the control panel 6 and the main control circuit board 3. The ceramic plate array assembly 5 includes multiple piezoelectric ceramic plates 51 arranged in an array on the inner surface of the lower housing 1 of the fetal heart rate monitoring integrated machine. The multiple piezoelectric ceramic plates 51 include piezoelectric ceramic plates 51 of at least two frequencies. The operating frequency band of the ceramic plate array assembly 5 includes a fetal heart rate detection frequency band of 2.5MHz to 3MHz ± 15% for the fetus starting from 9 weeks of gestation and a fetal heart rate monitoring frequency band of 2MHz ± 15%, 1.5MHz ± 15%, and 1MHz ± 15% for the fetus starting from 24 weeks of gestation. In this embodiment, the main control circuit board can control the ceramic plate array component to switch different working frequency bands to complete fetal heart rate detection and fetal heart monitoring according to the control instructions of the control button panel. The main control circuit board can also automatically select the working frequency band according to the signal strength fed back by the ceramic plate array component, thus combining the fetal heart rate monitor and the fetal heart monitoring device into one. It is suitable for pregnant women at different stages of pregnancy, both in the early and late stages. It can be used as a fetal heart rate monitor to detect fetal heart rate, and as a fetal heart rate probe for long-term monitoring of fetal heart rate. In actual use, the main control circuit board automatically selects the strongest signal channel, without the need for manual selection of the working frequency. When used as a fetal heart rate monitor, it can adopt the continuous wave working mode for good fetal heart sound quality, or the pulse wave working mode for a larger ultrasonic sound field range. When used as the ultrasonic probe of the fetal heart rate monitor, considering the need for the largest possible sound field range for long-term monitoring, the pulse wave working mode is adopted.

[0024] like Figures 1-2As shown, the lower housing 1 and upper housing 2 of the integrated fetal heart rate monitor are also provided with fixing through holes 7 for passing through the strap. The strap can fix the integrated fetal heart rate monitor and the integrated fetal heart rate monitor to the user's abdomen. The number of piezoelectric ceramic plates 51 is not less than 6 and not more than 16. The shape of the piezoelectric ceramic plates 51 is a circular thin plate, a semi-circular thin plate, an annular thin plate, or a square thin plate. The inner surface of the lower housing 1 of the integrated fetal heart rate monitor is provided with multiple ceramic plate placement grooves 11. The ceramic plate placement grooves 11 are adapted to the piezoelectric ceramic plates 51. The outer surface of the lower housing 1 of the integrated fetal heart rate monitor is an arc shape that fits the human abdomen. Both the lower housing 1 and the upper housing 2 of the integrated fetal heart rate monitor are circular. In this embodiment, increasing the number of piezoelectric ceramic sheets increases the range of the received sound field, greatly reducing the difficulty of locating the fetal heartbeat and making it easier for pregnant women (non-medical professionals) to use it themselves. The multi-frequency piezoelectric ceramic sheets can be of various frequencies, and like an ultrasound probe, one or more matching layers can be added between the piezoelectric ceramic sheets and the inner surface of the lower housing of the fetal heart rate monitor to achieve different operating frequencies. It can be fixed to the abdomen with a strap, eliminating the need for handheld use, making it convenient for measuring fetal heart rate in early pregnancy and for situations requiring longer monitoring periods. The main control circuit board has a control algorithm for processing multiple frequencies and multiple piezoelectric ceramic sheets, allowing the selection of the strongest signal channel for sound output and calculation during detection or monitoring, further ensuring the reliability and accuracy of the fetal heart rate reading. The lower and upper housings of the fetal heart rate monitor can be circular or square. Circular and square shapes can be flat or curved inwards at the edges for better fit to the abdomen. In practice, up to three different frequencies of piezoelectric ceramic sheets can be combined to form a ceramic sheet array assembly.

[0025] As can be seen from the above, the present invention provides an integrated fetal heart rate monitor and fetal heart rate measurement device. This device comprises a lower casing, an upper casing, a main control circuit board, a power supply, a ceramic plate array assembly, and a control panel, all designed to work together. The main control circuit board controls the ceramic plate array assembly to switch between different operating frequency bands according to the control commands from the control panel to perform fetal heart rate detection and monitoring. This integrates the functions of a fetal heart rate monitor and a fetal heart rate measurement device into one unit, suitable for pregnant women at different stages of pregnancy, including early and late gestation. It can function as both a fetal heart rate monitor and a fetal heart rate measurement device. As a fetal heart rate monitoring probe, it monitors the fetal heart rate for extended periods. During actual use, the main control circuit board automatically selects the strongest signal channel, eliminating the need for manual selection of the operating frequency. When used as a fetal heart rate monitor, it can operate in continuous wave mode for high-quality fetal heart sounds or in pulse wave mode for a wider ultrasonic sound field. When used as an ultrasonic probe in a fetal heart rate monitor, considering the need for a large sound field range during long-term monitoring, it adopts pulse wave mode. This solves the problem of existing technologies where pregnant women at different stages of pregnancy need to use separate fetal heart rate monitors and fetal monitors.

[0026] The specific embodiments described above are preferred embodiments of the present invention and are not intended to limit the specific scope of the present invention. The scope of the present invention includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the present invention are within the protection scope of the present invention.

Claims

1. A combined fetal heart rate monitor and fetal heart rate instrument, characterized in that: The device includes a lower housing, an upper housing, a main control circuit board, a power supply, a ceramic plate array assembly, and a control panel. The lower housing and upper housing are detachably connected and form an electronic component housing. The main control circuit board, power supply, and ceramic plate array assembly are all housed within this electronic component housing. The power supply is connected to the control panel and the main control circuit board. The main control circuit board is connected to the ceramic plate array assembly, and the control panel is connected to the main control circuit board. The chip array assembly includes multiple piezoelectric ceramic chips arranged in an array on the inner surface of the lower housing of the integrated fetal heart rate monitor. The multiple piezoelectric ceramic chips include piezoelectric ceramic chips of at least two frequencies. The operating frequency bands of the ceramic chip array assembly include a fetal heart rate detection frequency band of 2.5MHz to 3MHz ± 15% for fetal heart rate detection starting from 9 weeks of gestation and a fetal heart rate monitoring frequency band of 2MHz ± 15%, 1.5MHz ± 15%, and 1MHz ± 15% for fetal heart rate monitoring starting from 24 weeks of gestation. The main control circuit board can control the ceramic chip array assembly to switch between different operating frequency bands to complete fetal heart rate detection and fetal heart rate monitoring according to the control instructions of the control button panel.

2. The integrated fetal heart rate monitor and fetal heart rate measurement device according to claim 1, characterized in that: The lower housing and upper housing of the integrated fetal heart rate monitor are also provided with fixing through holes for the strap to pass through, and the strap can fix the fetal heart rate monitor and the integrated fetal heart rate monitor to the user's abdomen.

3. The integrated fetal heart rate monitor and fetal heart rate instrument according to claim 2, characterized in that: The number of piezoelectric ceramic sheets is no less than 6.

4. The integrated fetal heart rate monitor and fetal heart rate instrument according to claim 3, characterized in that: The number of piezoelectric ceramic sheets shall not exceed 16.

5. The integrated fetal heart rate monitor and fetal heart rate measurement device according to claim 4, characterized in that: The piezoelectric ceramic sheet is in the shape of a circular sheet, a semi-circular sheet, a ring-shaped sheet, or a square sheet.

6. The integrated fetal heart rate monitor and fetal heart rate instrument according to claim 5, characterized in that: The inner surface of the lower housing of the fetal heart monitoring device is provided with multiple ceramic plate mounting grooves, which are adapted to the piezoelectric ceramic plates.

7. The integrated fetal heart rate monitor and fetal heart rate instrument according to claim 6, characterized in that: The outer surface of the lower shell of the fetal heart monitoring device is an arc shape that fits in close to the human abdomen.

8. The integrated fetal heart rate monitor and fetal heart rate measurement device according to claim 7, characterized in that: Both the lower casing and the upper casing of the integrated fetal heart rate monitor are circular.

9. The integrated fetal heart rate monitor and fetal heart rate instrument according to claim 8, characterized in that: The main control circuit board can also automatically select the operating frequency band based on the signal strength fed back by the ceramic chip array component.

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