Fetal heart detection patch

Abstract

The utility model discloses a fetal heart detection patch which comprises a patch base body, an ultrasonic Doppler probe, a temperature sensor, a PCB and a data transmission unit, the ultrasonic Doppler probe is arranged in the patch base body, the temperature sensor is arranged in the patch base body, the PCB is arranged on the patch base body, and the data transmission unit is arranged on the patch base body. The PCB is electrically connected with the ultrasonic Doppler probe and the temperature sensor, and the data transmission unit is electrically connected with the PCB. The ultrasonic Doppler probe and the temperature sensor are arranged on the patch base body, can be attached and fixed to the abdomen of a pregnant woman through the patch base body and are soft and comfortable, fetal heart rate data of the pregnant woman and the body temperature of the pregnant woman can be collected at the same time, and fetal heart sound data of the pregnant woman and the body temperature of the pregnant woman can be monitored at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and more specifically, to a fetal heart rate detection patch. Background Art

[0002] Electronic fetal monitoring (EFM) is a technology used to detect fetal heart rate and uterine contractions. It is designed to assess the health of the fetus and monitor the fetus during obstetrics and gynecology medical procedures.

[0003] Electronic fetal heart rate monitoring, commonly performed before and during labor, uses electronics and sensors to measure the fetal heart rate and uterine contractions. Fetal heart rate monitoring devices typically consist of two main components: fetal heart rate monitoring and uterine contraction monitoring.

[0004] The fetal heart rate probe is part of the fetal heart rate monitor system and is used to monitor the fetal heart rate data of pregnant women.

[0005] For example, application number 201721811221.2 discloses a fetal heart data acquisition device, including an outer shell, a gripping part, a main board, and a probe sensing module with a disc-shaped detection part. Although the fetal heart data acquisition device can convert fetal heart data into vital sign data and send it to a preset data receiving end, so that the vital sign data can be uploaded to a cloud server through the data receiving end, it is difficult for the fetal heart data acquisition device to monitor the body temperature of pregnant women.

[0006] During childbirth, it is very important to monitor the body temperature of pregnant women. Monitoring the body temperature of pregnant women is an important part of assessing the health of the mother and fetus during childbirth, because changes in body temperature may reflect some potential health problems:

[0007] 1. Prevent infection: If infection occurs during delivery, it may cause high fever. Continuous high fever is very harmful to both pregnant women and newborns.

[0008] 2. Monitor and evaluate the effect of anesthesia: When using anesthesia methods such as painless delivery or cesarean section, changes in the pregnant woman's body temperature can reflect whether the anesthesia is effective.

[0009] 3. Predicts complications: A sudden drop in a pregnant woman’s body temperature may also indicate severe complications such as severe bleeding, arrhythmia, shock, etc.

[0010] Therefore, by continuously observing changes in body temperature, doctors can detect and treat potential problems early.

[0011] In the management of labor, most hospitals mainly measure ear temperature or axillary temperature with a mercury thermometer. These two temperature measurement methods require nurses to measure each temperature, which requires a lot of manpower. In order to optimize clinical work, it is necessary to develop a fetal heart rate monitoring device that can monitor both the fetal heart rate data and the body temperature of pregnant women.

[0012] Therefore, the prior art needs to be improved. Utility Model Content

[0013] The purpose of the present application is to provide a fetal heart rate detection patch, aiming to solve the technical problem in the prior art of how to realize a fetal heart rate monitoring device that can monitor both the fetal heart rate data and the body temperature of pregnant women.

[0014] To achieve the above purpose, the technical solution adopted in this application is:

[0015] The present application provides a fetal heart rate detection patch, which includes:

[0016] Patch substrate;

[0017] An ultrasonic Doppler probe, wherein the ultrasonic Doppler probe is disposed in the patch substrate;

[0018] A temperature sensor, wherein the temperature sensor is disposed in the patch substrate;

[0019] A PCB board, the PCB board is arranged on the patch substrate, and the PCB board is electrically connected to the ultrasonic Doppler probe and the temperature sensor respectively;

[0020] A data transmission unit is electrically connected to the PCB board.

[0021] In one embodiment, the patch substrate comprises:

[0022] A latex containing part, wherein the latex containing part has a containing cavity, and the ultrasonic Doppler probe, the temperature sensor and the PCB board are arranged in the containing cavity;

[0023] a double-sided mucosa, the double-sided mucosa being arranged in the latex containing part;

[0024] A release film is arranged on a side of the double-sided mucosa away from the latex containing portion, and the release film is detachably connected to the double-sided mucosa.

[0025] In one embodiment, the fetal heart rate detection patch further includes:

[0026] A power switch, which is disposed on the chip substrate and is electrically connected to the PCB board;

[0027] An LED lamp is arranged on the patch substrate, and the LED lamp is electrically connected to the PCB board.

[0028] In one implementation, the data transmission unit includes a data line, and the data line is used to connect the PCB board and the fetal heart monitor.

[0029] In one embodiment, the data transmission unit includes a wireless transmission module, and the wireless transmission module is used to connect to a fetal heart monitor or a mobile device.

[0030] In one embodiment, the mobile device comprises a smart phone.

[0031] In one embodiment, the wireless transmission module includes at least one of the following structures:

[0032] Wifi wireless communication module, Bluetooth wireless communication module, 4G communication module, 5G communication module or Zig-Bee wireless communication module.

[0033] In one embodiment, the ultrasound Doppler probe comprises:

[0034] A receiving chip, wherein the receiving chip is arranged on the patch substrate;

[0035] The transmitting chip is arranged on a side of the patch substrate away from the receiving chip. The transmitting chip and the receiving chip are both inclined. A V-shaped structure is formed between the transmitting chip and the receiving chip, and a groove is arranged in the middle between the transmitting chip and the receiving chip.

[0036] In one embodiment, the fetal heart rate detection patch further includes:

[0037] An alarm module is connected to the PCB board and is used to issue an alarm reminder.

[0038] In one embodiment, the alarm module includes one of the following structures:

[0039] Audible and visual alarm or buzzer alarm.

[0040] The beneficial effects of a fetal heart rate detection patch provided by the present application are at least:

[0041] The present application discloses a fetal heart detection patch, which includes a patch substrate, an ultrasonic Doppler probe, a temperature sensor, a PCB board and a data transmission unit, wherein the ultrasonic Doppler probe is arranged in the patch substrate, the temperature sensor is arranged in the patch substrate, the PCB board is arranged in the patch substrate, and the PCB board is electrically connected to the ultrasonic Doppler probe and the temperature sensor respectively, and the data transmission unit is electrically connected to the PCB board. The present application arranges an ultrasonic Doppler probe and a temperature sensor in the patch substrate, and the ultrasonic Doppler probe and the temperature sensor can be attached and fixed to the abdomen of a pregnant woman through the patch substrate, which is soft and comfortable, and can simultaneously collect the fetal heart rate data and the pregnant woman's body temperature, so as to realize simultaneous monitoring of the fetal heart sound data and the pregnant woman's body temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 A three-dimensional diagram of a fetal heart rate detection patch provided in an embodiment of the present application;

[0044] Figure 2 An exploded view of a fetal heart rate detection patch provided in an embodiment of the present application;

[0045] Figure 3 A schematic structural diagram of a specific embodiment of a fetal heart rate detection patch provided in an embodiment of the present application;

[0046] Figure 4 A schematic diagram of the structure of an ultrasonic Doppler probe in a fetal heart rate detection patch provided in an embodiment of the present application;

[0047] Figure 5 A schematic diagram of the structure of the fetal heart detection patch provided in an embodiment of the present application connected to a fetal heart monitor;

[0048] Figure 6 A schematic diagram of the structure of the fetal heart rate detection patch provided in an embodiment of the present application connected to a mobile device.

[0049] Among them, the reference numerals in the figure are:

[0050] 100. patch substrate; 200. ultrasonic Doppler probe; 300. temperature sensor; 400. PCB board; 500. data transmission unit; 600. alarm module; 700. fetal heart monitor; 800. mobile device; 110. latex container; 120. double-sided mucosa; 130. release film; 111. power switch; 112. LED light; 113. signal light; 114. power light; 210. receiving chip; 220. transmitting chip; 230. groove; 510. data cable; 520. wireless transmission module; 511. data interface; 810. smart phone. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0053] See also Figure 1 and Figure 2 The present embodiment provides a fetal heart rate detection patch, which includes: a patch substrate 100, an ultrasonic Doppler probe 200, a temperature sensor 300, a PCB board 400 and a data transmission unit 500, the ultrasonic Doppler probe 200 is arranged in the patch substrate 100, the temperature sensor 300 is arranged in the patch substrate 100, the PCB board 400 is arranged in the patch substrate 100, and the PCB board 400 is electrically connected to the ultrasonic Doppler probe 200 and the temperature sensor 300 respectively, and the data transmission unit 500 is electrically connected to the PCB board 400.

[0054] In this embodiment, the fetal heart detection patch uses a patch substrate 100 as a carrier, and the patch substrate 100 can be attached to the abdomen of a subject. It can be understood that the patch substrate 100 can be adhered to the abdomen of a pregnant woman to collect fetal heart sound data and the body temperature of the pregnant woman. For example, the patch substrate 100 is inlaid with an ultrasonic Doppler probe 200, a temperature sensor 300, a PCB board 400 and a data transmission unit 500. The ultrasonic Doppler probe 200 is used to collect the fetal heart sound data of the subject, and the temperature sensor 300 is used to monitor the body temperature of the subject. The ultrasonic Doppler probe 200 transmits the fetal heart sound data to the PCB board 400, and the temperature sensor 300 transmits the body temperature data to the PCB board 400. The PCB board 400 can transmit the fetal heart sound data and the body temperature data to the fetal heart monitor 700 or the mobile device 800 through the data transmission unit 500. The mobile device 800 has different applications, which can monitor the uterine contraction activity of the pregnant woman.

[0055] The patch base 100 has an adhesive surface, and the adhesive surface has the function of adhesive adhesion. The patch base 100 is adhered to the abdomen of the pregnant woman through the adhesive surface. The adhesive surface is flat and smooth, soft and comfortable, which can reduce damage to the pregnant woman's skin and avoid bruises or pressure sores on the pregnant woman's abdominal skin.

[0056] Therefore, in this embodiment, an ultrasonic Doppler probe 200 and a temperature sensor 300 are provided on the patch substrate 100. The ultrasonic Doppler probe 200 and the temperature sensor 300 can be attached and fixed to the abdomen of a pregnant woman through the patch substrate 100. They are soft and comfortable, and can simultaneously collect the fetal heart rate data and the body temperature of the pregnant woman, thereby realizing simultaneous monitoring of the fetal heart rate data and the body temperature of the pregnant woman.

[0057] Specifically, the fetal heart rate detection patch may further include an alarm module 600 , which is connected to the PCB board 400 , and is used to issue an alarm reminder.

[0058] In this embodiment, when the fetal heart sound data or the body temperature data does not meet the preset value, the alarm module 600 can issue an alarm reminder. For example, the fetal heart detection patch can be attached to the abdomen of a pregnant woman. The fetal heart detection patch can monitor the fetal heart sound data of the pregnant woman through the ultrasonic Doppler probe 200, and can monitor the body temperature of the pregnant woman through the temperature sensor 300, and transmit the fetal heart sound data and the body temperature data to the PCB board 400, to judge whether the fetal heart sound data meets the first preset value and whether the body temperature data meets the second preset value. When the fetal heart sound data meets the first preset value and the body temperature data meets the second preset value, no alarm reminder is triggered at this time; when the fetal heart sound data does not meet the first preset value and the body temperature data meets the second preset value, an alarm prompt can be triggered at this time, such as issuing a voice signal prompt of "abnormal fetal heart sound"; when the fetal heart sound data does not meet the first preset value and the body temperature data does not meet the second preset value, an alarm prompt can be triggered at this time, such as issuing a voice signal prompt of "abnormal fetal heart sound" and a voice signal prompt of "abnormal body temperature"; when the fetal heart sound data meets the first preset value and the body temperature data does not meet the second preset value, an alarm prompt can be triggered at this time, such as a voice signal prompt of "abnormal body temperature".

[0059] Optionally, the alarm module 600 includes one of the following structures:

[0060] Audible and visual alarm or buzzer alarm.

[0061] For example, the alarm module 600 may include an audible and visual alarm, that is, the alarm module 600 is made of an audible and visual alarm. When the fetal heart rate data or body temperature of the pregnant woman does not meet the preset value, the audible and visual alarm may issue an audible and visual alarm prompt.

[0062] For example, the alarm module 600 may include a buzzer alarm, that is, the alarm module 600 is made of a buzzer alarm. When the fetal heart rate data or body temperature of the pregnant woman does not meet the preset value, the buzzer alarm can sound a buzzer alarm prompt.

[0063] Specifically, see Figure 2 and Figure 4 The ultrasonic Doppler probe 200 includes: a receiving chip 210 and a transmitting chip 220. The receiving chip 210 is arranged on the patch substrate 100, and the transmitting chip 220 is arranged on a side of the patch substrate 100 away from the receiving chip 210. The transmitting chip 220 and the receiving chip 210 are both inclined, and a V-shaped structure is formed between the transmitting chip 220 and the receiving chip 210, and a groove 230 is arranged in the middle between the transmitting chip 220 and the receiving chip 210.

[0064] In this embodiment, a V-shaped structure is formed between the transmitting chip 220 and the receiving chip 210, and a groove 230 is provided in the middle between the transmitting chip 220 and the receiving chip 210 to avoid mutual interference, wherein a strong signal intersection can be formed when the ultrasonic signal is transmitted and received, which can minimize the problems of reflection and receiving signal attenuation, and create conditions for the next step of signal processing, thereby improving the detection sensitivity of the ultrasonic Doppler probe 200 and improving the accuracy of the ultrasonic Doppler probe 200, wherein the receiving chip 210 and the transmitting chip 220 can be understood as the existing technology and will not be repeated.

[0065] For example, the receiving chip 210 and the transmitting chip 220 are semi-circular ring structures respectively, and the receiving chip 210 and the transmitting chip 220 are tilted and surrounded to form a ring, and a groove 230 is provided in the middle of the ring, wherein a temperature sensor 300 is provided in the middle position of the ring to realize real-time monitoring of the fetal heart rate data and body temperature of the pregnant woman through the ultrasonic Doppler probe 200 and the temperature sensor 300.

[0066] Specifically, see Figure 1 The patch substrate 100 may include: a latex containing portion 110, a double-sided mucosal film 120 and a release film 130. The latex containing portion 110 has a containing cavity, in which an ultrasonic Doppler probe 200, a temperature sensor 300 and a PCB board 400 are arranged. The double-sided mucosal film 120 is arranged in the latex containing portion 110, and the release film 130 is arranged on the side of the double-sided mucosal film away from the latex containing portion 110, and the release film 130 and the double-sided mucosal film 120 are detachably connected.

[0067] In this embodiment, the latex containing part 110 is soft and elastic, moderately soft, and not easy to deform. The latex containing part 110 is used as a carrier of the ultrasonic Doppler probe 200, the temperature sensor 300, the PCB board 400, and the data transmission unit 500, that is, the latex containing part 110 can be inlaid with the ultrasonic Doppler probe 200, the temperature sensor 300, the PCB board 400, and the data transmission unit 500. The double-sided mucosa 120 has an adhesive effect, so that the patch substrate 100 can be adhered to the abdominal plate of the subject and is not easy to fall off. The release film 130 is used to protect the double-sided mucosa 120. For example, when the fetal heart sound data or body temperature of the pregnant woman is needed, the release film 130 can be torn off, and then the ultrasonic Doppler probe 200 and the temperature sensor 300 are bonded to the abdomen of the pregnant woman through the double-sided mucosa 120, and the fetal heart sound data and body temperature of the pregnant woman are monitored in real time through the ultrasonic Doppler probe 200 and the temperature sensor 300.

[0068] Specifically, see Figure 1The fetal heart rate detection patch also includes: a power switch 111 and an LED light 112. The power switch 111 is arranged on the patch substrate 100, and the power switch 111 is electrically connected to the PCB board 400. The LED light 112 is arranged on the patch substrate 100, and the LED light 112 is electrically connected to the PCB board 400.

[0069] In this embodiment, the power switch 111 can start or stop the fetal heart detection patch, and the LED light 112 can display the working state of the fetal heart detection patch. The LED light 112 can include a power light 114 and a signal light 113. For example, the fetal heart detection patch can be powered on by pressing the power switch 111. At this time, the power light 114 is on, indicating that the ultrasonic Doppler probe 200 and the temperature sensor 300 can monitor the fetal heart sound data and body temperature of the pregnant woman in real time. When the PCB board 400 is connected to the fetal heart monitor 700 or the mobile device 800 through the data transmission unit 500, the signal light 113 is on; when the PCB board 400 is not connected to the fetal heart monitor 700 or the mobile device 800, the signal light 113 is off; long press the power switch 111 to turn off the power of the fetal heart detection patch, and the power light 114 and the signal light 113 are both off.

[0070] Specifically, see Figure 3 , Figure 5 and Figure 6 The data transmission unit 500 may include a data line 510, and the data line 510 is used to connect the PCB board 400 and the fetal heart monitor 700 or the mobile device 800.

[0071] In this embodiment, the fetal heart detection patch can be connected to the fetal heart monitor 700 or the mobile device 800 via the data line 510. The fetal heart detection patch can transmit the monitored fetal heart sound data and body temperature data to the fetal heart monitor 700 via the data line 510. For example, the fetal heart detection patch can be provided with a data interface 511, and the data line 510 can be inserted into the data interface 511 to realize the electrical connection between the PCB board 400 and the fetal heart monitor 700. The fetal heart monitor 700 can be understood as the prior art and will not be described in detail.

[0072] Specifically, see Figure 2 , Figure 5 and Figure 6 The data transmission unit 500 may further include a wireless transmission module 520 , and the wireless transmission module 520 is used to connect to a fetal heart monitor 700 or a mobile device 800 .

[0073] In this embodiment, the fetal heart detection patch can be connected to the fetal heart monitor 700 or the mobile device 800 through the wireless transmission module 520. The fetal heart detection patch can transmit the monitored fetal heart sound data and body temperature data to the fetal heart monitor 700 or the mobile device 800 through the wireless transmission module 520 to monitor the fetal heart sound data and body temperature data of the pregnant woman in real time.

[0074] For example, the mobile device 800 can execute multiple different applications, and the application of the mobile device 800 can monitor the fetal heart rate data and body temperature of the pregnant woman. Therefore, the fetal heart rate detection patch can transmit the monitored fetal heart rate data and body temperature to the mobile device 800 through the wireless transmission module 520 to monitor the fetal heart rate data and body temperature of the pregnant woman in real time.

[0075] Optionally, the mobile device 800 includes a smart phone 810 .

[0076] For example, the mobile device 800 may include a smart phone 810, which may have a mobile phone APP. The smart phone 810 can be wirelessly connected to the wireless transmission module 520 through the mobile phone APP to monitor the fetal heart rate data and body temperature of the pregnant woman in real time. Among them, the mobile phone APP can be understood as the existing technology and will not be repeated.

[0077] Optionally, the wireless transmission module 520 includes at least one of the following structures:

[0078] Wifi wireless communication module, Bluetooth wireless communication module, 4G communication module, 5G communication module or Zig-Bee wireless communication module.

[0079] For example, the wireless transmission module 520 may include a Wifi wireless communication module, and the PCB board 400 may wirelessly transmit with the fetal heart monitor 700 or the mobile device 800 through the Wifi wireless communication module to wirelessly transmit the fetal heart sound data and body temperature data of the pregnant woman to the fetal heart monitor 700 or the mobile device 800.

[0080] For example, the wireless transmission module 520 may include a Bluetooth wireless communication module, and the PCB board 400 can wirelessly transmit with the fetal heart monitor 700 or the mobile device 800 through the Bluetooth wireless communication module to wirelessly transmit the fetal heart sound data and body temperature data of the pregnant woman to the fetal heart monitor 700 or the mobile device 800.

[0081] For example, the wireless transmission module 520 may include a 4G communication module or a 5G communication module, and the PCB board 400 may wirelessly transmit with the fetal heart monitor 700 or the mobile device 800 through the 4G communication module or the 5G communication module to wirelessly transmit the fetal heart sound data and body temperature data of the pregnant woman to the fetal heart monitor 700 or the mobile device 800.

[0082] For example, the wireless transmission module 520 may include a Zig-Bee wireless communication module, and the PCB board 400 may wirelessly transmit with the fetal heart monitor 700 or the mobile device 800 through the Zig-Bee wireless communication module to wirelessly transmit the fetal heart sound data and body temperature data of the pregnant woman to the fetal heart monitor 700 or the mobile device 800.

[0083] For example, the wireless transmission module 520 may include a Wifi wireless communication module, a Bluetooth wireless communication module, a 4G communication module, a 5G communication module and a Zig-Bee wireless communication module. The PCB board 400 may wirelessly transmit with the fetal heart monitor 700 or the mobile device 800 through the Wifi wireless communication module, the Bluetooth wireless communication module, the 4G communication module, the 5G communication module and the Zig-Bee wireless communication module to wirelessly transmit the fetal heart rate data and body temperature data of the pregnant woman to the fetal heart rate monitor 700 or the mobile device 800.

[0084] In summary, the present application discloses a fetal heart detection patch, which includes a patch substrate, an ultrasonic Doppler probe, a temperature sensor, a PCB board and a data transmission unit, wherein the ultrasonic Doppler probe is arranged in the patch substrate, the temperature sensor is arranged in the patch substrate, the PCB board is arranged in the patch substrate, and the PCB board is electrically connected to the ultrasonic Doppler probe and the temperature sensor respectively, and the data transmission unit is electrically connected to the PCB board. The present application is provided with an ultrasonic Doppler probe and a temperature sensor in the patch substrate, and the ultrasonic Doppler probe and the temperature sensor can be attached and fixed to the abdomen of a pregnant woman through the patch substrate, which is soft and comfortable, and can simultaneously collect the fetal heart rate data and the body temperature of the pregnant woman, so as to realize simultaneous monitoring of the fetal heart sound data and the body temperature of the pregnant woman.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A fetal heart rate detection patch, characterized in that: include: Patch substrate; An ultrasonic Doppler probe, wherein the ultrasonic Doppler probe is disposed in the patch substrate; A temperature sensor, wherein the temperature sensor is disposed in the patch substrate; A PCB board, the PCB board is arranged on the patch substrate, and the PCB board is electrically connected to the ultrasonic Doppler probe and the temperature sensor respectively; A data transmission unit is electrically connected to the PCB board.

2. The fetal heart rate detection patch according to claim 1, characterized in that: The patch substrate comprises: A latex containing part, wherein the latex containing part has a containing cavity, and the ultrasonic Doppler probe, the temperature sensor and the PCB board are arranged in the containing cavity; a double-sided mucosa, the double-sided mucosa being arranged in the latex containing part; A release film is arranged on a side of the double-sided mucosa away from the latex containing portion, and the release film is detachably connected to the double-sided mucosa.

3. The fetal heart rate detection patch according to claim 1, characterized in that: The fetal heart rate detection patch also includes: A power switch, which is disposed on the chip substrate and is electrically connected to the PCB board; An LED lamp is arranged on the patch substrate, and the LED lamp is electrically connected to the PCB board.

4. The fetal heart rate detection patch according to claim 1, characterized in that: The data transmission unit includes a data line, and the data line is used to connect the PCB board and the fetal heart monitor.

5. The fetal heart rate detection patch according to claim 1, characterized in that: The data transmission unit includes a wireless transmission module, and the wireless transmission module is used to connect to a fetal heart monitor or a mobile device.

6. The fetal heart rate detection patch according to claim 5, characterized in that: The mobile device comprises a smart phone.

7. The fetal heart rate detection patch according to claim 5, characterized in that: The wireless transmission module includes at least one of the following structures: Wifi wireless communication module, Bluetooth wireless communication module, 4G communication module, 5G communication module or Zig-Bee wireless communication module.

8. The fetal heart rate detection patch according to claim 1, characterized in that: The ultrasonic Doppler probe comprises: A receiving chip, wherein the receiving chip is arranged on the patch substrate; The transmitting chip is arranged on a side of the patch substrate away from the receiving chip. The transmitting chip and the receiving chip are both inclined. A V-shaped structure is formed between the transmitting chip and the receiving chip, and a groove is arranged in the middle between the transmitting chip and the receiving chip.

9. The fetal heart rate detection patch according to claim 1, characterized in that: The fetal heart rate detection patch also includes: An alarm module is connected to the PCB board and is used to issue an alarm reminder.

10. The fetal heart rate detection patch according to claim 9, characterized in that: The alarm module includes one of the following structures: Audible and visual alarm or buzzer alarm.

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