Wearable fetal heart rate monitoring equipment and use method thereof

Abstract

The invention belongs to the technical field of medical monitoring, and discloses a wearable fetal heart monitoring device and a using method thereof.The wearable fetal heart monitoring device comprises two strap assemblies, a connecting rod is connected between the two strap assemblies, the two strap assemblies are each connected with a connecting strap and a waist support assembly, and the connecting strap assemblies are connected with the connecting strap and the waist support assembly. The connecting belt and the waist support assembly are opposite to each other at the position of the bridle assembly, a protection assembly is connected to the waist support assembly, the waist support assembly and the protection assembly are matched with each other, the waist position of a user is supported, and the back area of the user is supported through a protection rod; the waist area of a user is supported through the waist support, the waist pressure of the user is reduced, the comfort of the monitoring equipment in use is improved, and the position height of the protection rod is adjusted and controlled, so that the protection assembly can be promoted to support and use people in different postures.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical monitoring, and in particular relates to a wearable fetal heart monitoring device and a method for using the same. Background Art

[0002] With the development of society and the advancement of medical technology, people pay more attention to the protection and care of pregnant women. Among the existing fetal heart monitoring devices, some test results are greatly affected by the changes in fetal position, placental position and fetal heart position, and some have potential safety issues for the mother and fetus, requiring professionals to use professional methods to perform tests. Therefore, the existing fetal heart monitoring is carried out regularly in the hospital, and pregnant women need to register, make an appointment and queue up every time they go to the hospital, which brings great inconvenience to the lives of pregnant women.

[0003] The patent with application number CN201510275806.6 discloses a wearable fetal monitor, including a shell, a shell, and a shell connected to each other; the shell and the shell can be fixed to the abdomen of a pregnant woman by a strap, and the shell can be worn on the strap; the shell is provided with an ultrasonic transceiver module, an ultrasonic demodulation module, a fetal heart signal processing module, and a uterine pressure processing module, an ultrasonic transducer is provided in the shell, and a pressure sensor is provided in the shell. The shell is also provided with safety protection modules such as a temperature monitoring module, a timing module, and a self-test module. The wearable fetal monitor provided by the above scheme, the fetal monitor host (shell) can be worn on the parturient or held in the hand, and the pregnant woman can perform fetal monitoring while standing or walking, and the fetal monitoring is more free; and the host is also provided with uterine pressure monitoring and safety protection modules, which are safer and more reliable to use. Although the above scheme realizes fetal heart monitoring of the fetus, it does not optimize the monitoring status of the pregnant woman during use, resulting in the pregnant woman being very likely to feel physical discomfort during the detection process.

[0004] During the monitoring process, the influence of the pregnant woman's body posture will cause the pressure on the pregnant woman's waist to increase, causing discomfort in the waist when the pregnant woman walks, sits or lies down. In severe cases, it may even cause damage to the pregnant woman's lumbar spine, thereby increasing the error in the monitoring process due to the pregnant woman's poor condition.

[0005] Therefore, in order to solve the above technical problems, the present invention proposes a wearable fetal heart monitoring device and a method for using the same. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems. The present invention provides a wearable fetal heart monitoring device and a method of using the same, which has the advantages of being portable and reducing the pressure on the waist of pregnant women during the detection process.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a wearable fetal heart monitoring device, comprising two strap assemblies, a connecting rod is connected between the two strap assemblies, a connecting belt and a waist protection assembly are connected to the two strap assemblies, and the connecting belt and the waist protection assembly are opposite to each other at the positions of the strap assemblies, and a protection assembly is connected to the waist protection assembly;

[0008] The two connecting belts are both movably provided with a restraint component, and one end of the two restraint components close to the waist protection component is respectively connected with a detection probe and a fetal heart probe;

[0009] The protection assembly comprises a protection shell, a waist support is connected to the protection shell, and protection rods are movably provided at two ends of the protection shell distributed along the length direction.

[0010] Preferably, the belt assembly comprises an elastic belt, the connecting belt and the waist protection assembly are both connected to the elastic belt, and a locking portion is connected to the elastic belt.

[0011] Preferably, the detection probe comprises a shell, one end of the shell is connected to the constraint component, and the shell is connected to a detection component.

[0012] Preferably, the detection assembly includes a movable disk, a trigger rod is connected to one end of the movable disk close to the shell, the end of the trigger rod away from the movable disk is connected to the shell, and a reset spring is sleeved on the outer circumference of the trigger rod.

[0013] Preferably, the constraint component includes a connecting shell, a connecting cavity is formed through the connecting shell, the connecting belt passes through the connecting cavity, movable wheels are connected to both side walls of the connecting cavity, and the movable wheels can undergo angular deflection on the connecting cavity.

[0014] Preferably, a working cavity for storing electronic components is provided on the shell, and a ventilation cavity is provided on the connecting shell, and the ventilation cavity is communicated with the working cavity.

[0015] Preferably, two telescopic rods are connected inside the protective shell, and ends of the two telescopic rods that are away from each other are respectively connected to the protective rods.

[0016] Preferably, the waist support is composed of an elastic plate assembly, and two ends of the waist support distributed along the length direction are respectively connected to the movable part of the telescopic rod.

[0017] Preferably, a sliding cavity is provided on the connecting belt, and the detection probe is slidably connected in the sliding cavity.

[0018] A method of using a wearable fetal heart rate monitoring device comprises the following steps:

[0019] S1, unfolding the locking part, so that the user passes through the opening of the locking part and contacts the elastic band;

[0020] S2, respectively adjusting the positions of the detection probe and the fetal heart rate probe to move them to correspond to the detection position of the user;

[0021] S3, driving the position of the protection rod to move by the telescopic rod, so that the protection rod contacts the back of the user, and the waist support contacts the waist of the user;

[0022] S4. The user's status is detected by using the detection probe and the fetal heart probe. The user's skin vibration drives the movable plate to vibrate, which drives the trigger rod to vibrate, thereby completing the fetal heart monitoring.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The waist position of the user is supported by the cooperation between the waist protection components and the protection components. The back area of ​​the user is supported by the protection rod, and the waist area of ​​the user is supported by the waist support, which reduces the waist pressure of the user and improves the comfort of the monitoring equipment during use. The height of the protection rod can be adjusted to enable the protection component to support people with different body shapes.

[0025] 2. Through the cooperation between the set constraint component and the connecting belt, the resistance of the detection probe and the fetal heart probe to the movement on the connecting belt can be reduced, and the adjustment rate of their position on the connecting belt can be increased. At the same time, after the detection probe and the fetal heart probe are moved to the target position, the constraint component can be used to lock their positions to avoid the deviation of the detection probe and the fetal heart probe affecting the monitoring accuracy.

[0026] 3. Use the connecting rod to connect the belt assembly. After the belt assembly is connected to the user, the connecting rod can be used to protect and restrain the user's side body, reduce the deviation of the belly position, and affect the monitoring position of the detection probe and the fetal heart probe.

[0027] 4. By opening a sliding cavity on the connecting belt, the detection probe and the fetal heart probe are hidden in the sliding cavity, so that the detection probe and the fetal heart probe can be moved while effectively reducing the pressure of the detection probe and the fetal heart probe body on the user's abdomen, thereby improving the comfort of the monitoring equipment during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device in the first embodiment of the present invention;

[0029] Figure 2It is a schematic diagram of the three-dimensional structure of the overall device in another direction in the first embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection structure between the constraint component and the detection probe in the first embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the constraint component and the detection probe in the first embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the three-dimensional structure of the protection component in the first embodiment of the present invention;

[0033] Figure 6 is a schematic cross-sectional structure diagram of a protection component in Embodiment 1 of the present invention;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting belt in the second embodiment of the present invention.

[0035] Description of the drawings: 1. Strap assembly; 101. Elastic belt; 102. Locking part; 2. Connecting belt; 201. Sliding cavity; 3. Constraint assembly; 301. Connecting shell; 3011. Ventilation cavity; 302. Connecting cavity; 303. Moving wheel; 4. Waist protection assembly; 5. Detection probe; 501. Shell; 5011. Working cavity; 502. Detection assembly; 5021. Movable disk; 5022. Trigger rod; 5023. Reset spring; 6. Fetal heart probe; 7. Protection assembly; 701. Protection shell; 702. Waist support; 703. Protection rod; 704. Telescopic rod; 8. Connecting rod. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] like Figure 1-Figure 7As shown, a wearable fetal heart monitoring device includes two strap assemblies 1 for connecting to a pregnant woman, and the strap assemblies 1 are used to fix the positions of a detection probe 5 and a fetal heart probe 6 to ensure normal monitoring of the pregnant woman, wherein a plurality of connecting rods 8 are connected between the two strap assemblies 1, and the two strap assemblies 1 are connected by the connecting rods 8, which facilitates the use and storage of the strap assemblies 1, and the plurality of connecting rods 8 are not connected to the connecting belt 2 and the waist protection assembly 4, that is, when in use, the connecting rods 8 are located at the side of the user, ensuring that the spacing between the strap assemblies 1 meets the monitoring requirements while , and can also support and restrain the user's belly, reduce the probability of belly position deviation, and ensure the stability of the detection data of the detection probe 5 and the fetal heart probe 6. The two belt assemblies 1 are both connected with a connecting belt 2 and a waist protection assembly 4, and the connecting belt 2 and the waist protection assembly 4 are opposite to each other in the position of the belt assembly 1. The widths of the connecting belt 2 and the waist protection assembly 4 are wider than the width of the belt assembly 1, thereby reducing the pressure of the connecting belt 2 and the waist protection assembly 4 when they are in contact with the user, thereby improving the user's comfort. The waist protection assembly 4 is connected with a protection assembly 7 for supporting the user's waist position.

[0039] In order to facilitate the movement of the detection probe 5 and the fetal heart probe 6 on the connecting belt 2 and to fix the positions of the detection probe 5 and the fetal heart probe 6, a constraint component 3 is movably provided on the two connecting belts 2, and the two constraint components 3 are respectively connected to the detection probe 5 and the fetal heart probe 6 at one end close to the waist protection component 4. By moving the position of the constraint component 3, the position of the detection probe 5 and the fetal heart probe 6 can be moved.

[0040] When in use, according to the user's needs, the positions of the detection probe 5 and the fetal heart probe 6 are adjusted on the connecting belt 2, and the strap assembly 1 is used to connect with the user. After the connection, the protection assembly 7 can support the user's back, and the connecting rod 8 can fix and restrain the user's side body, ensuring the normal operation of the detection probe 5 and the fetal heart probe 6.

[0041] It should be noted that when monitoring the fetal heart rate of a pregnant woman, in order to improve the convenience of monitoring, in the present invention, the detection probe 5 and the fetal heart rate probe 6 both use wireless connection to transmit detection data, and can remotely receive and display the detection information with a portable electronic device.

[0042] In order to reduce the discomfort in the waist caused by long-term sitting during use of the protective device by pregnant women, the protective component 7 includes a protective shell 701 for connection and fixing, one end of the protective shell 701 is connected to the waist protection component 4, and a waist support 702 is connected to the protective shell 701, wherein the waist support 702 is located between the two strap components 1, and can directly contact the user's waist, and protective rods 703 are movably provided at both ends of the protective shell 701 distributed along the length direction, wherein the distance between the protective rod 703 and the protective shell 701 can be adjusted, and the protective rod 703 is used to contact and support the user's back to reduce the pressure on the user's waist, ensuring that the user's waist will not feel tired and uncomfortable when monitoring the fetal heart rate.

[0043] Furthermore, in order to improve the convenience of wearing the monitoring equipment during use, the strap assembly 1 includes an elastic belt 101. The elastic belt 101 can be used to adjust the diameter of the strap assembly 1 to adapt it to pregnant women of different body shapes. The connecting belt 2 and the waist protection assembly 4 are both connected to the elastic belt 101, and a locking portion 102 is connected to the elastic belt 101. When the locking portion 102 is in an open state, the inner ring of the elastic belt 101 is in an open state, so that it is convenient for the user to wear it. After the user wears it, it is fixed by the locking portion 102, so that the elastic belt 101 is fixed in contact with the user's skin.

[0044] In the present invention, the locking portion 102 includes but is not limited to adhesive buckles, buttons and other connecting buckles used for connection.

[0045] Furthermore, the detection probe 5 has the same structure as the fetal heart probe 6. In the present invention, for the sake of ease of presentation, only the structure of the detection probe 5 is explained. The detection probe 5 includes a shell 501. One end of the shell 501 is connected to the constraint component 3. A detection component 502 is connected to the shell 501. The detection component 502 is used to identify the user's uterine contraction state, and at the same time, the state of the pregnant woman's fetal heart is identified, and the detection data is uploaded.

[0046] Furthermore, the detection component 502 includes a movable disk 5021, which is in contact with the skin of the user. During the detection process, the movable disk 5021 can be driven to vibrate by detecting the frequency of the pregnant woman's belly beating. A trigger rod 5022 is connected to the end of the movable disk 5021 close to the shell 501, and the end of the trigger rod 5022 away from the movable disk 5021 is connected to the shell 501, and a reset spring 5023 is sleeved on the outer circumference of the trigger rod 5022. During use, the vibration of the movable disk 5021 can drive the trigger rod 5022 to move, and the movement frequency of the trigger rod 5022 is collected and uploaded, and during the vibration of the movable disk 5021, the reset spring 5023 is used to reset the position of the movable disk 5021 to ensure that the movable disk 5021 is always in contact with the skin of the user.

[0047] When necessary, in order to facilitate the user to use it safely and comfortably in any season, a temperature control component is processed on the housing 501 and the movable plate 5021, and the temperature on the side in contact with the human body is regulated according to the user's usage requirements to ensure that the user can use it normally.

[0048] Furthermore, in order to facilitate the adjustment and fixation of the positions of the detection probe 5 and the fetal heart probe 6, the constraint component 3 includes a connecting shell 301. The shape of the connecting shell 301 is in a square shape with a hole in the middle. A connecting cavity 302 is penetrated through the connecting shell 301, and the connecting belt 2 penetrates through the connecting cavity 302. Therefore, when it is necessary to move the positions of the detection probe 5 and the fetal heart probe 6, the connecting shell 301 is controlled to move on the connecting belt 2. Moving wheels 303 are connected to both side walls of the connecting cavity 302. During the movement of the connecting shell 301, the moving wheels 303 will contact and rotate on the surface of the connecting belt 2, so as to realize the rapid movement of the detection probe 5 and the fetal heart probe 6 on the connecting belt 2. The moving wheels 303 can deflect at an angle in the connecting cavity 302. When the constraint component 3 moves to the target position, at this time, the angle of the moving wheels 303 is controlled to deflect, so that the angle between the moving wheels 303 and the connecting belt 2 deflects, and at the same time, the hub of the moving wheels 303 is controlled to contact the connecting belt 2 to lock the moving wheels 303 to ensure the positions of the detection probe 5 and the fetal heart probe 6 are fixed.

[0049] Furthermore, a working cavity 5011 for storing electronic components is opened on the housing 501, and a ventilation cavity 3011 is opened on the connecting shell 301. The ventilation cavity 3011 is communicated with the working cavity 5011, and one end of the ventilation cavity 3011 far away from the working cavity 5011 penetrates through the connecting shell 301 and communicates with the outside. During the operation of the electronic components, a lot of heat will be generated. At this time, the ventilation cavity 3011 is used to transfer the heat in the working cavity 5011 to ensure the temperature stability of the detection probe 5 and the fetal heart probe 6, so as not to interfere with the user. Moreover, when dissipating heat through the ventilation cavity 3011, the hot air dissipated will not affect the user, improving the comfort of using the monitoring device.

[0050] And in order to ensure the safety during use, a temperature sensor is added to the working cavity 5011 to identify the temperature in the working cavity 5011. When the temperature in the working cavity 5011 is still high under the heat dissipation effect of the ventilation cavity 3011, a warning is given through the data receiving end at this time to prompt the user to pay attention to the usage status of the device.

[0051] Furthermore, two telescopic rods 704 are connected inside the protective shell 701, and the ends of the two telescopic rods 704 that are away from each other are respectively connected to the protective rod 703. The position height of the protective rod 703 is adjusted by the telescopic rods 704 to suit users of different body shapes. In the present invention, the telescopic rods 704 are preferably electric telescopic rods, which are convenient for quickly adjusting the position of the protective rod 703 according to usage requirements and reducing the debugging time before use.

[0052] Furthermore, the lumbar support 702 is composed of an elastic plate assembly, and the two ends of the lumbar support 702 distributed along the length direction are respectively connected to the movable parts of the telescopic rod 704, thereby improving the user's comfort. When the telescopic rod 704 is used to adjust the position of the protection rod 703, the raised height of the lumbar support 702 can also be adjusted, ensuring that the lumbar support 702 can be used by people of different body shapes.

[0053] When in use, first open the locking part 102 and make the elastic band 101 contact with the human skin, but do not fix the position of the locking part 102 at this time, so that the protection component 7 corresponds to the waist position of the user, and then adjust the restraint component 3 to drive the detection probe 5 and the fetal heart probe 6 to be located at the position for mutual detection. At this time, adjust the locking part 102 to lock, so that the elastic band 101 is fixed against the user, and the connecting rod 8 is distributed on both sides of the waist.

[0054] When the locking part 102 is fixed, the position of the restraint component 3 is fine-tuned according to the fixed position to ensure that the positions of the detection probe 5 and the fetal heart probe 6 correspond to the positions of the user. At the same time, the length of the telescopic rod 704 is adjusted according to the user's body shape to drive the protection rod 703 to contact the user's back and the waist support 702 to contact the user's waist area, thereby reducing the pressure on the user's waist during use.

[0055] The detection probe 5 and the fetal heart probe 6 are then controlled to monitor the user's status. Since the detection probe 5 and the fetal heart probe 6 have the same structural principles, only the action function of the detection probe 5 is described here. The movable disk 5021 is driven to vibrate by the vibration of the human skin, thereby driving the trigger rod 5022 to move back and forth, thereby completing the monitoring of the fetal heart. In addition, the detection method of the dual probes of the detection probe 5 and the fetal heart probe 6 can avoid the interference of the user's body status on the fetal heart detection.

[0056] Embodiment 2

[0057] Based on the above-mentioned embodiment 1, although the detection probe 5 and the fetal heart probe 6 cooperate with each other to monitor the target fetal heart, at the same time, since the detection probe 5 and the fetal heart probe 6 are located on the surface of the connecting belt 2, they may excessively squeeze the abdomen of the user during use, causing discomfort to the user. In order to solve the above-mentioned technical problems, the present invention proposes embodiment 2.

[0058] When in use, the thickness of the connecting belt 2 is increased, and a sliding cavity 201 is opened on the connecting belt 2. The detection probe 5 and the fetal heart probe 6 are slidably connected in the sliding cavity 201, and only the movable disk 5021 is controlled to protrude from the connecting belt 2. During installation and use, the pressure of the detection probe 5 and the fetal heart probe 6 on the user's abdomen is reduced, thereby improving the comfort of use of the monitoring equipment.

[0059] At the same time, the waist protection component 4 passes through the protection component 7, and the protection component 7 is used to adjust the length of the belt component 1. That is, during the use of the fetal heart monitoring device, part of the waist protection component 4 is stored in the protection shell 701, and the tightness of the belt component 1 is adjusted according to the user's posture to ensure the user's comfort.

[0060] Specifically, according to the change of the resistance pressure of the user on the waist support 702 and the protection rod 703, the user's use posture is identified, and then the length of the waist protection component 4 in the protection component 7 is controlled and adjusted, so as to adjust the length (i.e., tightness) of the belt component 1.

[0061] When the waist support 702 and the protection rod 703 are subjected to force at the same time, it means that the user is in a sitting state, and the diameter of the abdomen is larger than when standing. The protection component 7 is then used to control the length extension of the waist protection component 4 to reduce the pressure of the belt component 1 on the user's abdomen, ensure that the detection probe 5 and the fetal heart probe 6 are in normal working condition, and improve the comfort of use of the monitoring equipment.

[0062] When only the waist support 702 is under stress, and the stress is less than the pressure of sitting, it means that the user is in a standing state and the diameter of the abdomen is small. The protection component 7 can be controlled to control the length contraction of the waist protection component 4 to ensure that the belt component 1 will not be separated from the user. At the same time, the positions of the detection probe 5 and the fetal heart probe 6 are maintained stable, thereby ensuring that the fetal heart monitoring equipment can actively adjust its connection status according to the user's usage status, thereby improving the user's comfort during use and not interfering with the monitoring results.

[0063] Embodiment 3

[0064] The present invention also includes a method of using the wearable fetal heart rate monitoring device, comprising the following steps:

[0065] S1, unfolding the locking portion 102, so that the user passes through the opening of the locking portion 102 and contacts the elastic band 101;

[0066] S2, respectively adjusting the positions of the detection probe 5 and the fetal heart probe 6 to move them to correspond to the detection position of the user;

[0067] S3, the protective rod 703 is moved by the telescopic rod 704, so that the protective rod 703 contacts the back of the user, and the waist support 702 contacts the waist of the user;

[0068] S4. The detection probe 5 and the fetal heart probe 6 are used to detect the user's condition. The user's skin vibration drives the movable plate 5021 to vibrate, drives the trigger rod 5022 to vibrate, and completes the monitoring of the fetal heart.

[0069] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wearable fetal heart rate monitoring device, comprising two strap assemblies (1), characterized in that: A connecting rod (8) is connected between the two strap assemblies (1), and a connecting belt (2) and a waist protection assembly (4) are connected to the two strap assemblies (1), and the connecting belt (2) and the waist protection assembly (4) are opposite to each other at the positions of the strap assemblies (1), and a protection assembly (7) is connected to the waist protection assembly (4); The two connecting belts (2) are each movably provided with a restraint component (3), and one end of the two restraint components (3) close to the waist protection component (4) is respectively connected with a detection probe (5) and a fetal heart probe (6); The protection assembly (7) comprises a protection shell (701), a waist support (702) is connected to the protection shell (701), and protection rods (703) are movably provided at both ends of the protection shell (701) along the length direction.

2. The wearable fetal heart rate monitoring device according to claim 1, characterized in that: The belt assembly (1) comprises an elastic belt (101), the connecting belt (2) and the waist protection assembly (4) are both connected to the elastic belt (101), and a locking portion (102) is connected to the elastic belt (101).

3. The wearable fetal heart rate monitoring device according to claim 1, characterized in that: The detection probe (5) comprises a shell (501), one end of the shell (501) is connected to the restraining component (3), and a detection component (502) is connected to the shell (501).

4. The wearable fetal heart rate monitoring device according to claim 3, characterized in that: The detection assembly (502) comprises a movable disk (5021), an end of the movable disk (5021) close to the housing (501) is connected to a trigger rod (5022), an end of the trigger rod (5022) away from the movable disk (5021) is connected to the housing (501), and a return spring (5023) is sleeved on the outer circumference of the trigger rod (5022).

5. The wearable fetal heart rate monitoring device according to claim 3, characterized in that: The restraining component (3) comprises a connecting shell (301), a connecting cavity (302) is formed through the connecting shell (301), the connecting belt (2) passes through the connecting cavity (302), and moving wheels (303) are connected to the cavity walls on both sides of the connecting cavity (302), and the moving wheels (303) can be angularly deflected on the connecting cavity (302).

6. The wearable fetal heart rate monitoring device according to claim 5, characterized in that: The housing (501) is provided with a working cavity (5011) for storing electronic components, and the connecting shell (301) is provided with a ventilation cavity (3011), wherein the ventilation cavity (3011) is in communication with the working cavity (5011).

7. The wearable fetal heart rate monitoring device according to claim 1, characterized in that: Two telescopic rods (704) are connected inside the protective shell (701), and ends of the two telescopic rods (704) that are away from each other are respectively connected to the protective rod (703).

8. The wearable fetal heart rate monitoring device according to claim 7, characterized in that: The waist support (702) is composed of an elastic plate assembly, and two ends of the waist support (702) distributed along the length direction are respectively connected to the movable part of the telescopic rod (704).

9. The wearable fetal heart rate monitoring device according to claim 1, characterized in that: The connecting belt (2) is provided with a sliding cavity (201), and the detection probe (5) is slidably connected in the sliding cavity (201).

10. A method of using the wearable fetal heart rate monitoring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, unfolding the locking portion (102) to encourage a user to pass through the opening of the locking portion (102) and come into contact with the elastic band (101); S2, respectively adjusting the positions of the detection probe (5) and the fetal heart rate probe (6) to move them so as to correspond to the detection position of the user; S3, driving the protective rod (703) to move by means of the telescopic rod (704), so that the protective rod (703) comes into contact with the back of the user, and the waist support (702) comes into contact with the waist of the user; S4. The detection probe (5) and the fetal heart probe (6) are used to detect the state of the user. The vibration of the user's skin drives the movable plate (5021) to vibrate, which drives the trigger rod (5022) to vibrate, thereby completing the monitoring of the fetal heart.

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