Intelligent wearable limb movement monitoring device for postoperative rehabilitation of pediatric surgery

Abstract

The invention discloses an intelligent wearable limb movement monitoring device for pediatric surgery postoperative rehabilitation, and relates to the technical field of medical instruments, the intelligent wearable limb movement monitoring device comprises a bottom sleeve and a top sleeve, one side of the bottom sleeve and one side of the top sleeve are movably connected through a shaft, the other side of the bottom sleeve and the other side of the top sleeve are movably connected with a lock catch, and the inner side of the bottom sleeve and the inner side of the top sleeve are movably connected with a plurality of clamping plates; a flexible myoelectricity sensor is integrally installed on the face, directly making contact with the arm of the patient, of the clamping plate and used for monitoring the muscle state of the fracture position of the arm of the patient in real time. The distance between the clamping plate and the arm of the patient is adjusted through the adjusting mechanism, so that the initial compression force monitored by the pressure sensor is at the most suitable constraint pressure, when the arm of the patient gradually swells, the compression force monitored by the pressure sensor is increased, and at the moment, the adjusting mechanism drives the clamping plate to be gradually away from the arm skin of the patient; the pressure sensor is used for detecting the pressure on the arm of the patient so as to relieve the pressure generated on the arm of the patient until the pressure monitored by the pressure sensor is consistent with the pressure in the initial stage.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an intelligent wearable limb movement monitoring device for postoperative rehabilitation in pediatric surgery. Background Art

[0002] Pediatric orthopedics is an important branch of pediatric surgery, focusing on the diagnosis, treatment, and rehabilitation of diseases related to the musculoskeletal system, such as bones, joints, muscles, ligaments, tendons, and nerves.

[0003] When a child's arm fractures, the usual treatment process is as follows: First, the fracture ends are reduced through manual manipulation or surgery, and then fixed with an external fixator, such as a plaster cast or splint, to stabilize the fracture ends. During the rehabilitation process, a limb movement monitoring device needs to be worn. A flexible myoelectric sensor capable of collecting myoelectric signals and an inertial measurement unit (integrating an accelerometer and a gyroscope) capable of real-time tracking of the three-dimensional movement of the limb are integrated on the device, and the data is synchronously transmitted to a mobile phone or a computer for real-time feedback and analysis, replacing subjective evaluation with objective data to reduce human error.

[0004] In order to directly and real-time monitor the condition of the fractured part of a child's arm, the wearable limb movement monitoring device is often strapped to the fractured part of the child's arm. However, after a child's arm fractures, there will be a swelling period lasting for two to three weeks or even longer. When the fractured part of the child's arm swells, the pressure at the contact between the monitoring device and the child's arm will increase. When the swelling of the fractured part of the child's arm gradually improves and the swelling condition gradually alleviates, medical staff need to frequently adjust the tension of the binding strap of the monitoring device, which is very inconvenient especially for patients recuperating at home. Summary of the Invention

[0005] The present invention provides an intelligent wearable limb movement monitoring device for postoperative rehabilitation in pediatric surgery to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An intelligent wearable limb movement monitoring device for postoperative rehabilitation in pediatric surgery includes a bottom sleeve and a top sleeve. One side of the bottom sleeve and the top sleeve is movably connected by a shaft, and the other side is movably connected with a buckle.

[0008] A plurality of splints are movably connected to the inner sides of the bottom sleeve and the top sleeve. A flexible myoelectric sensor is integrally installed on the surface of the splint that directly contacts the patient's arm to real-time monitor the muscle state of the fractured part of the patient's arm. A plurality of pressure sensors are movably connected to the surface of the splint that contacts the patient's skin to monitor the compressive force on the patient's arm.

[0009] An adjusting mechanism for adjusting according to the pressing force monitored by the pressure sensor is arranged between the clamping plate and the inner walls of the bottom sleeve and the top sleeve.

[0010] It further includes a data transmission mechanism and a main control mechanism for uploading, analyzing, and processing the data monitored by the flexible myoelectric sensor in real time.

[0011] A further improvement of the technical solution of the present invention is that the adjusting mechanism includes a mounting sleeve plate fixedly connected to the inner sides of the bottom sleeve and the top sleeve. An adjusting slide rod is movably connected inside the mounting sleeve plate. One end of the adjusting slide rod is connected to the clamping plate, and the adjusting slide rod drives the clamping plate to move up and down along the mounting sleeve plate to adapt to different arm dimensions.

[0012] A further improvement of the technical solution of the present invention is that a telescopic rod is fixedly connected to the mounting sleeve plate. A plurality of card slots are evenly formed on the side surface of the adjusting slide rod, and the output end of the telescopic rod is movably connected to the inner wall of the card slot.

[0013] A further improvement of the technical solution of the present invention is that connecting plates are fixedly connected to the opposite sides of the clamping plate and the adjusting slide rod. The two connecting plates are hermetically connected through a connecting arc plate. In the initial stage, the cavity formed by the connecting plates and the connecting arc plate is filled with gas to form a support. When the patient's arm swells, the distance between the two connecting plates does not change. When the gas inside the connecting plates and the connecting arc plate decreases and the support weakens, the distance between the two connecting plates shortens.

[0014] A further improvement of the technical solution of the present invention is that an air storage tank is formed inside the adjusting slide rod. The air storage tank is communicated with the connecting plate through an air outlet channel, and a valve is fixedly connected to the middle of the air outlet channel.

[0015] A further improvement of the technical solution of the present invention is that the air storage tank is communicated with the connecting plate and the connecting arc plate through an air inlet channel, and an air pump is fixedly connected to the middle of the air inlet channel. The air pump can pump the gas stored in the air storage tank into the connecting plate and the connecting arc plate.

[0016] A further improvement of the technical solution of the present invention is that a balance cavity is formed inside the adjusting slide rod. The balance cavity is communicated with the connecting plate and the connecting arc plate through a detection channel. A lower baffle is fixedly connected to the opening of the balance cavity close to the detection channel. The top of the lower baffle is not connected to the top of the inner cavity of the balance cavity. An upper baffle is fixedly connected to the top of the inner cavity of the balance cavity. The bottom of the upper baffle is not connected to the bottom of the inner cavity of the balance cavity. A balance liquid is stored in the cavity formed by the lower baffle and the balance cavity.

[0017] A further improvement of the technical solution of the present invention is that a liquid level sensor is fixedly connected to the inner wall of the balance cavity to monitor the liquid level height of the balance liquid.

[0018] A further improvement of the technical solution of the present invention lies in that: a shielding sleeve is fixedly connected between the mounting sleeve plate and the clamping plate.

[0019] A further improvement of the technical solution of the present invention lies in that: a plurality of ventilation holes are evenly formed on the outer surfaces of the bottom sleeve and the top sleeve.

[0020] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is as follows:

[0021] 1. The present invention provides an intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation. First, place the fractured arm of the patient between the bottom sleeve and the top sleeve, make the clamping plate fit with the patient's skin, and lock it through the buckle. Then, adjust the distance between the clamping plate and the patient's arm through the adjusting mechanism so that the initial compressive force monitored by the pressure sensor is at the most suitable binding pressure magnitude. When the patient's arm gradually swells, the compressive force monitored by the pressure sensor increases. At this time, drive the clamping plate to gradually move away from the patient's arm skin through the adjusting mechanism to relieve the compressive force generated at the patient's arm until the compressive force monitored by the pressure sensor is consistent with the compressive force in the initial stage. When the patient's arm gradually recovers, the swelling condition gradually alleviates, the dimension of the arm decreases, the compressive force monitored by the pressure sensor gradually decreases, and the binding effect of the clamping plate becomes poor. At this time, drive the clamping plate to gradually approach the patient's skin through the adjusting mechanism until the compressive force monitored by the pressure sensor is consistent with the initial stage.

[0022] 2. The present invention provides an intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation. In the initial stage, by adjusting the movement of the sliding rod along the mounting sleeve plate, when the patient's arm is placed between the bottom sleeve and the top sleeve, the compressive force generated between the arm and the clamping plate is the most suitable, which can not only ensure the stability of clamping and fixing, but also will not exert too strong a compressive effect on the patient's arm.

[0023] 3. The present invention provides an intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation. By monitoring the height change of the balance liquid by the liquid level sensor, the height of the balance liquid inside the balance cavity changes with the change of the air pressure inside the connecting plate and the connecting arc plate. Therefore, the change of the air pressure inside the connecting plate and the connecting arc plate can be reflected by the height change of the balance liquid, that is, when performing inflation and deflation operations inside the connecting plate and the connecting arc plate, the amount of inflation and deflation can be controlled through the height change of the balance liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural schematic diagram of the present invention;

[0025] Figure 2 is a structural schematic diagram of the present invention from another angle;

[0026] Figure 3Schematic diagram of the structure after the bottom sleeve and the top sleeve of the present invention are opened;

[0027] Figure 4 Schematic diagram of the internal structure of the shielding sleeve of the present invention;

[0028] Figure 5 Schematic diagram of the structure after the adjusting slide rod of the present invention moves upward along the mounting sleeve plate;

[0029] Figure 6 Schematic cross-sectional structure diagram of the adjusting slide rod of the present invention;

[0030] Figure 7 Schematic diagram of the structure of the connecting plate and the connecting arc piece of the present invention.

[0031] In the figure: 1, bottom sleeve; 2, top sleeve; 3, lock; 4, splint; 5, pressure sensor; 6, mounting sleeve plate; 7, shielding sleeve; 8, ventilation hole; 9, adjusting slide rod; 10, telescopic rod; 11, card slot; 12, connecting plate; 13, connecting arc piece; 14, air outlet channel; 15, valve; 16, air inlet channel; 17, air pump; 18, air storage tank; 19, detection channel; 20, balance chamber; 21, lower baffle; 22, upper baffle; 23, liquid level sensor; 24, balance liquid. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with embodiments:

[0033] Embodiment:

[0034] As Figure 1-7 shown, the present invention provides an intelligent wearable limb movement monitoring device for pediatric surgical postoperative rehabilitation, including a bottom sleeve 1 and a top sleeve 2. One side of the bottom sleeve 1 and the top sleeve 2 is movably connected by a shaft, and the other side is movably connected with a lock 3. The lock 3 is a prior art and is used to lock between the bottom sleeve 1 and the top sleeve 2.

[0035] A plurality of splints 4 are movably connected to the inner sides of the bottom sleeve 1 and the top sleeve 2. A flexible myoelectric sensor is integrally installed on the surface of the splint 4 that is in direct contact with the patient's arm for real-time monitoring of the muscle state of the fracture of the patient's arm. An accelerometer and a gyroscope are also integrally installed on the splint 4. The flexible myoelectric sensor, the accelerometer and the gyroscope are all prior arts. A plurality of pressure sensors 5 are movably connected to the surface of the splint 4 that is in contact with the patient's skin. The pressure sensors 5 are prior arts and can monitor the compressive force received by the patient's arm.

[0036] An adjusting mechanism for adjusting according to the compressive force monitored by the pressure sensor 5 is provided between the splint 4 and the inner walls of the bottom sleeve 1 and the top sleeve 2.

[0037] It also includes a data transmission mechanism and a main control mechanism. Both the data transmission mechanism and the main control mechanism are existing technologies, which are used to upload, analyze and process the data monitored by sensors such as flexible myoelectric sensors in real time. A power storage structure is also integrally installed. The power storage structure is an existing technology and is used to supply power to the electronic components in this application.

[0038] First, place the fractured arm of the patient between the bottom sleeve 1 and the top sleeve 2. The splint 4 is attached to the patient's skin and locked by the lock 3. Then, adjust the distance between the splint 4 and the patient's arm through the adjustment mechanism, so that the initial compression force monitored by the pressure sensor 5 is at the most suitable binding pressure magnitude. When the patient's arm gradually swells, the compression force monitored by the pressure sensor 5 increases. At this time, the adjustment mechanism drives the splint 4 to gradually move away from the patient's arm skin to reduce the compression force generated at the patient's arm until the compression force monitored by the pressure sensor 5 is consistent with the compression force in the initial stage. When the patient's arm gradually recovers and the swelling condition gradually alleviates, the dimension of the arm decreases, and the compression force monitored by the pressure sensor 5 gradually decreases. The binding effect of the splint 4 becomes poor. At this time, the adjustment mechanism drives the splint 4 to gradually approach the patient's skin until the compression force monitored by the pressure sensor 5 is consistent with that in the initial stage.

[0039] Furthermore, the adjustment mechanism includes a mounting sleeve plate 6 fixedly connected to the inner sides of the bottom sleeve 1 and the top sleeve 2. An adjustment slide rod 9 is movably connected inside the mounting sleeve plate 6. One end of the adjustment slide rod 9 is connected to the splint 4. The adjustment slide rod 9 drives the splint 4 to move up and down along the mounting sleeve plate 6 to adapt to different arm dimensions. A driving structure for driving the adjustment slide rod 9 to move up along the mounting sleeve plate 6 is provided between the mounting sleeve plate 6 and the adjustment slide rod 9. This driving structure is an existing technology. In the initial stage, through the movement of the adjustment slide rod 9 along the mounting sleeve plate 6, when the patient's arm is placed between the bottom sleeve 1 and the top sleeve 2, the compression force generated between the patient's arm and the splint 4 is the most suitable, which can not only ensure the stability of clamping and fixing but also will not generate too strong a compression effect on the patient's arm. And at this time, the compression force monitored by the pressure sensor 5 can be used as the basic comparison data for the subsequent monitored compression force.

[0040] Furthermore, a telescopic rod 10 is fixedly connected to the mounting sleeve plate 6. A plurality of card slots 11 are evenly formed on the side surface of the adjustment slide rod 9. The output end of the telescopic rod 10 is movably connected to the inner wall of the card slot 11. First, the setting of a plurality of card slots 11 indicates that the adjustment degree between the mounting sleeve plate 6 and the adjustment slide rod 9 is large, that is, the adjustment range of the splint 4 is large, which is not only convenient for the initial fixation of the arm but also convenient for the coarse adjustment when the monitored compression force increases more subsequently.

[0041] Further, on the opposite sides of the splint 4 and the adjusting slide rod 9, connecting plates 12 are fixedly connected. The two connecting plates 12 are hermetically connected by a connecting arc plate 13. In the initial stage, the cavity formed by the connecting plates 12 and the connecting arc plate 13 is filled with gas to form a support. When the patient's arm swells, the distance between the two connecting plates 12 remains unchanged. When the gas inside the connecting plates 12 and the connecting arc plate 13 decreases and the support weakens, the distance between the two connecting plates 12 shortens, that is, the distance between the splint 4 and the patient's arm increases, so as to reduce the compression force generated between the patient's arm and the splint 4. The adjustment between the mounting sleeve plate 6 and the adjusting slide rod 9 is mainly based on the interval of the card slots 11, which is a coarse adjustment. The adjustable range between the connecting plates 12 and the connecting arc plate 13 is small, which is a precise adjustment.

[0042] Further, an air storage tank 18 is opened inside the adjusting slide rod 9. The air storage tank 18 is communicated with the connecting plate 12 through an air outlet channel 14. A valve 15 is fixedly connected to the middle of the air outlet channel 14. In the initial stage, the air pressure in the closed space formed by the connecting plate 12 and the connecting arc plate 13 is greater than the air pressure in the air storage tank 18. When precise adjustment of the connecting plate 12 and the connecting arc plate 13 is required, the air outlet channel 14 can be opened, so that the gas in the connecting plate 12 and the connecting arc plate 13 gradually enters the air storage tank 18. When the gas inside the connecting plate 12 and the connecting arc plate 13 decreases and the support weakens, the distance between the two connecting plates 12 shortens, that is, the distance between the splint 4 and the patient's arm increases, so as to reduce the compression force generated between the patient's arm and the splint 4 until the compression force monitored by the pressure sensor 5 is the same as that monitored in the initial stage.

[0043] Further, a shielding sleeve 7 is fixedly connected between the mounting sleeve plate 6 and the splint 4. The shielding sleeve 7 covers the adjusting slide rod 9 and related structures to play a protective role.

[0044] Further, the air storage tank 18 is communicated with the connecting plate 12 and the connecting arc plate 13 through an air inlet channel 16. An air pump 17 is fixedly connected to the middle of the air inlet channel 16. The air pump 17 can pump the gas stored in the air storage tank 18 into the connecting plate 12 and the connecting arc plate 13. When the adjustment for the swelling and increasing dimension of the patient's arm is completed, the gas in the air storage tank 18 can be pumped into the connecting plate 12 and the connecting arc plate 13 through the action of the air pump 17, so that the device returns to its original position for subsequent use.

[0045] Further, a balance cavity 20 is provided inside the adjusting slide bar 9. The balance cavity 20 is communicated with the connecting plate 12 and the connecting arc piece 13 through a detection channel 19. A lower baffle 21 is fixedly connected near the opening of the detection channel 19 of the balance cavity 20. The top of the lower baffle 21 is not connected to the top of the inner cavity of the balance cavity 20. An upper baffle 22 is fixedly connected to the top of the inner cavity of the balance cavity 20. The bottom of the upper baffle 22 is not connected to the bottom of the inner cavity of the balance cavity 20. A balance liquid 24 is stored in the cavity formed by the lower baffle 21 and the balance cavity 20. The height of the balance liquid 24 inside the balance cavity 20 changes with the change of the air pressure inside the connecting plate 12 and the connecting arc piece 13. Therefore, the change of the air pressure inside the connecting plate 12 and the connecting arc piece 13 can be reflected by the change of the height of the balance liquid 24. That is, when the connecting plate 12 and the connecting arc piece 13 are inflated and deflated, the amount of inflation and deflation can be controlled by the change of the height of the balance liquid 24.

[0046] Further, a liquid level sensor 23 is fixedly connected to the inner wall of the balance cavity 20. The liquid level sensor 23 is a prior art and is used to monitor the liquid level height of the balance liquid 24.

[0047] Further, a plurality of ventilation holes 8 are evenly provided on the outer surfaces of the bottom sleeve 1 and the top sleeve 2, so that the device has good air permeability and will not appear stuffy during use.

[0048] Next, the working principle of the intelligent wearable limb movement monitoring device for pediatric surgical postoperative rehabilitation will be specifically described.

[0049] As Figure 1-7 shown, first place the patient's arm between the bottom sleeve 1 and the top sleeve 2 and lock it through the lock 3. Then, slide the adjusting slide bar 9 up and down along the mounting sleeve plate 6 so that the pressing force monitored by the pressure sensor 5 is in the best state. Record the magnitude of the pressing force at this time as a. When the patient's arm swells, the pressing force monitored by the pressure sensor 5 increases and is recorded as b. The pressure difference is recorded as c;

[0050] Step 1: When c < d, open the valve 15. At this time, the gas in the connecting plate 12 and the connecting arc piece 13 will enter the gas storage tank 18. The gas inside the connecting plate 12 and the connecting arc piece 13 decreases. The connecting plate 12 connected to the splint 4 will move upward under the action of the pressing force, that is, the distance between the splint 4 and the patient's arm skin increases until the pressing force monitored by the pressure sensor 5 is the same as a;

[0051] Step 2: When f > c > d, first drive the splint 4 to move upward along the mounting sleeve plate 6 through the adjusting slide bar 9. Each time it moves up a distance of one card slot 11, and the adjusting slide bar 9 is clamped through the telescopic rod 10 until c < d. At this time, repeat the adjustment process of the above step 1;

[0052] Step 3: When c > f, it is in a dangerous state at this time. The warning structure integrally installed on the mounting template 6 will issue an alarm to remind to seek medical treatment in time and seek the help of medical staff;

[0053] d is the upper limit of the adjustable pressure difference at the connecting plate 12 and the connecting arc plate 13, and f is the upper limit of the adjustable pressure difference of the present application, which is a danger signal.

[0054] The above text has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation, characterized in that: It comprises a bottom sleeve (1) and a top sleeve (2), wherein one side of the bottom sleeve (1) and the top sleeve (2) are movably connected via a shaft, and the other side is movably connected with a lock buckle (3); The inner sides of the bottom cover (1) and the top cover (2) are both movably connected with a plurality of splints (4), and a flexible electromyographic sensor is integrated and installed on the side of the splint (4) that is in direct contact with the patient's arm, so as to monitor the muscle state of the patient's arm fracture in real time; and a plurality of pressure sensors (5) are movably connected with the side of the splint (4) that is in contact with the patient's skin, so as to monitor the pressure exerted on the patient's arm; An adjustment mechanism is provided between the clamping plate (4) and the inner walls of the bottom sleeve (1) and the top sleeve (2) for adjusting according to the compressive force monitored by the pressure sensor (5); It also includes a data transmission mechanism and a main control mechanism for uploading, analyzing and processing the data monitored by the flexible electromyography sensor in real time.

2. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 1, characterized in that: The adjustment mechanism comprises a mounting sleeve (6) fixedly connected to the inner side of the bottom sleeve (1) and the top sleeve (2); an adjusting slide rod (9) is movably connected inside the mounting sleeve (6); one end of the adjusting slide rod (9) is connected to the clamping plate (4); the adjusting slide rod (9) drives the clamping plate (4) to move up and down along the mounting sleeve (6) to adapt to different arm dimensions.

3. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 2, characterized in that: A telescopic rod (10) is fixedly connected to the mounting sleeve (6), a plurality of slots (11) are evenly arranged on the side of the adjusting slide bar (9), and an output end of the telescopic rod (10) is movably connected to the inner wall of the slot (11).

4. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 2, characterized in that: The splint (4) and the adjusting slide rod (9) are fixedly connected to a connecting plate (12) on one side opposite to the other. The two connecting plates (12) are sealed and connected via a connecting arc piece (13). In the initial stage, the cavity formed by the connecting plates (12) and the connecting arc piece (13) is filled with gas to form a support. When the patient's arm swells, the distance between the two connecting plates (12) does not change. When the gas inside the connecting plates (12) and the connecting arc piece (13) decreases, the support is weakened, and the distance between the two connecting plates (12) is shortened.

5. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 2, characterized in that: An air storage tank (18) is provided inside the adjusting slide rod (9), and the air storage tank (18) is connected to the connecting plate (12) via an air outlet channel (14), and a valve (15) is fixedly connected to the middle of the air outlet channel (14).

6. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 5, characterized in that: The gas storage tank (18) is connected to the connecting plate (12) and the connecting arc plate (13) through an air intake channel (16). An air pump (17) is fixedly connected to the middle of the air intake channel (16). The air pump (17) can pump the gas stored in the gas storage tank (18) into the connecting plate (12) and the connecting arc plate (13).

7. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 4, characterized in that: A balancing chamber (20) is provided inside the adjusting slide bar (9), and the balancing chamber (20) is communicated with the connecting plate (12) and the connecting arc plate (13) through a detection channel (19). The balancing chamber (20) is fixedly connected to the opening of the detection channel (19) near the balancing chamber (20), and a lower baffle (21) is provided. The top of the lower baffle (21) is not connected to the top of the inner cavity of the balancing chamber (20). The top of the inner cavity of the balancing chamber (20) is fixedly connected to an upper baffle (22), and the bottom of the upper baffle (22) is not connected to the bottom of the inner cavity of the balancing chamber (20). A balancing liquid (24) is stored in the cavity formed by the lower baffle (21) and the balancing chamber (20).

8. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 7, characterized in that: A liquid level sensor (23) is fixedly connected to the inner wall of the balancing chamber (20) for monitoring the liquid level of the balancing liquid (24).

9. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 2, characterized in that: A shielding sleeve (7) is fixedly connected between the installation sleeve plate (6) and the clamping plate (4).

10. The intelligent wearable limb activity monitoring device for pediatric surgical postoperative rehabilitation according to claim 1, characterized in that: A plurality of air holes (8) are evenly arranged on the outer surfaces of the bottom sleeve (1) and the top sleeve (2).

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