Rehabilitation device for pelvic muscle repair

Abstract

The invention discloses a rehabilitation device for pelvic muscle repair, which comprises a multi-section hinged support bed plate, and comprises a support plate above the waist, a waist support plate, a pelvic clamping support plate and a lower limb support plate fixedly connected with the pelvic clamping support plate which are hinged in sequence; the air bag clamping elements symmetrically slide on the pelvis clamping supporting plate, and when the air bag clamping elements get close to each other to clamp the bilaterally asymmetric pelvis part, the lower limb supporting plate deflects upwards to drive the lower limbs to swing upwards along with the lower limb supporting plate; the deformation quantity detection unit is used for detecting the deformation quantity of the air bag and sending the actually-measured deformation quantity to the control system, and the control system is internally provided with a deformation quantity difference threshold value; the clamping movement of the pair of air bag clamping elements comprises the same-speed clamping movement before the pelvic part is touched and the differential-speed clamping movement after the pelvic part is touched. According to the device, the problem of unbalanced force application caused by uneven distribution of pelvic soft tissues is solved through differential clamping and lower limb linkage, and accurate and safe pelvic muscle repair is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pelvic muscle rehabilitation training for pregnant women, and in particular relates to a rehabilitation device for pelvic muscle repair. Background Art

[0002] Postpartum pelvic muscle repair is a crucial component of women's rehabilitation medicine, especially for pelvic floor muscle relaxation and symphysis pubis separation injuries caused by pregnancy and childbirth, which require scientific training and physical therapy to promote functional recovery. While existing medical beds offer basic position adjustment capabilities, pelvic clamping training generally employs symmetrical rigid clamping or uniform airbag compression, ignoring the common phenomenon of uneven soft tissue distribution on both sides of the pelvis in pregnant women. This includes areas of the pelvis that are asymmetrical, such as a thicker, softer fat layer on one side and more prominent muscle or bone structure on the other. These devices can easily cause unilateral pressure overload during clamping, leading to pain or soft tissue damage, and are unable to coordinate lower limb movement to simulate rehabilitation movements. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a rehabilitation device for pelvic muscle repair, which solves the problem of force imbalance caused by uneven distribution of pelvic soft tissue through differential clamping and lower limb linkage, thereby achieving accurate and safe pelvic muscle repair.

[0004] Technical solution: To achieve the above-mentioned purpose, the present invention provides a rehabilitation device for pelvic muscle repair, comprising:

[0005] A multi-section hinged support bed plate, comprising a support plate above the waist, a waist support plate, a pelvic clamping support plate, and a lower limb support plate fixedly connected to the pelvic clamping support plate, which are hinged in sequence;

[0006] Airbag clamping elements, a pair of airbag clamping elements slide symmetrically on the pelvic clamping support plate. When the pair of airbag clamping elements approach each other to clamp the asymmetrical pelvic area, the lower limb support plate deflects upward, driving the lower limb to swing upward;

[0007] A deformation detection unit is built into the airbag of the airbag clamping element, and is used to detect the deformation of the airbag and send the measured deformation to the control system, and the control system has a built-in deformation difference threshold;

[0008] The clamping movement of the pair of airbag clamping elements includes a uniform clamping movement before touching the pelvic area and a differential clamping movement after touching the pelvic area; and when the difference between the deformation amounts of the airbags on both sides is greater than the deformation amount difference threshold, the differential clamping movement is triggered: the clamping movement speed of the airbag clamping element on the high deformation side is made lower than the clamping movement speed of the airbag clamping element on the low deformation side, so as to reduce the difference in clamping force on both sides of the pelvis.

[0009] Further, the pair of airbag clamping elements are a left airbag clamping element and a right airbag clamping element, and the corresponding deformation amount detection units are a left deformation amount detection unit and a right deformation amount detection unit. The left actual measured deformation amount of the left deformation amount detection unit is compared and calculated with the right actual measured deformation amount of the right deformation amount detection unit to form an actual measured deformation amount difference. The actual measured deformation amount difference is compared with a deformation amount difference threshold, and the control system judges and controls the differential clamping movement of the left airbag clamping element and the right airbag clamping element.

[0010] Further, the deformation amount detection unit is a resistance strain gauge centered on the airbag clamping element. One end of the resistance strain gauge is connected to the airbag, and the other end is connected to the clamping plate of the airbag clamping element.

[0011] Further, it includes a clamping drive mechanism. The clamping drive mechanism drives the airbag clamping elements to move closer to each other along the width direction of the bed body to perform clamping on both sides of the pelvic part.

[0012] Further, the clamping drive mechanism includes a single-screw servo motor drive mechanism and a speed compensation drive mechanism; the two airbag clamping elements are arranged on the screw of the same single-screw servo motor drive mechanism, and the two airbag clamping elements are respectively arranged on the sliders on the screw through the corresponding speed compensation drive mechanisms, and the two sliders have opposite helix directions in thread engagement with the screw;

[0013] When the speed compensation drive mechanism is closed, the airbag clamping element and the corresponding slider remain relatively fixed; when the speed compensation drive mechanism is started, the airbag clamping element is driven by the speed compensation drive mechanism to move relative to the corresponding slider;

[0014] The single-screw servo motor drive mechanism is used to drive the two airbag clamping elements to perform synchronous clamping movement, and in the state where one of the airbag clamping elements is driven in the same direction by the corresponding speed compensation drive mechanism, the airbag clamping element obtains a double drive composed of the superposition of the single-screw servo motor drive mechanism and the speed compensation drive mechanism, so that the clamping movement speed of the airbag clamping element is greater than the clamping movement speed of the other airbag clamping element, realizing the differential clamping movement of the two airbag clamping elements.

[0015] Further, it includes a pressure sensor. The pressure sensor is used to detect the airbag pressure of the airbag clamping element and is interlocked with the clamping drive mechanism through the control system;

[0016] The control system has a built-in pressure safety threshold. During the clamping movement of the airbag clamping element, when the actual measured pressure value is greater than the pressure safety threshold, the control system controls the clamping drive mechanism to lock.

[0017] Further, the pelvic clamping support plate is a frame plate structure, and the bottom of the clamping plate of the airbag clamping element is located inside the pelvic clamping support plate, forming a guiding effect on the movement of the airbag clamping element in the width direction of the bed body.

[0018] Further, the speed compensation drive mechanism is a servo electric push rod.

[0019] Further, it includes a first servo motor drive system corresponding to the multi-section articulated support bed board. The first servo motor drive system includes a first servo motor and a first gear transmission component. The first servo motor is connected to the articulated shaft where the pelvic clamping support plate and the lumbar support plate are articulated through the first gear transmission component, and is used to drive the lower limb support plate to deflect upward to realize the upward swing of the lower limbs.

[0020] Further, it includes a second servo motor drive system corresponding to the multi-section articulated support bed board. The second servo motor drive system includes a second servo motor and a second gear transmission component. The second servo motor is connected to the articulated shaft where the support board above the lumbar region and the lumbar support board are articulated through the second gear transmission component, and is used to drive the support board above the lumbar region to deflect upward to realize the position conversion from the supine position to the semi-recumbent position.

[0021] Further, handrails that can be switched between the folded state and the unfolded state through folding movement are symmetrically arranged on both sides of the medical bed.

[0022] Further, a telescopic side table is arranged on one side of the medical bed. The telescopic side table has a connecting rod, and both ends of the connecting rod are damping-hinged to the medical bed and the telescopic side table respectively, so that the telescopic side table can make a circular motion to perform position conversion between the position beside the bed and the position on the bed.

[0023] Beneficial effects: Through the design of the multi-section articulated structure of the bed board, the present invention supports the segmented adjustment of the pregnant woman's body position, mainly with the upward swing of the lower limbs and supplemented by the semi-recumbent position above the waist, promoting the stretching and repair of the pelvic muscles. The differential clamping of the airbag dynamically adjusts the clamping speed through the difference in deformation amount, balances the clamping forces on both sides, adapts to the differences in soft tissues on both sides of the pelvis, such as the hardness differences caused by uneven fat distribution and the structural asymmetry differences on both sides of the pelvis of special pregnant woman groups, avoids excessive unilateral compression causing discomfort or personal injury, protects the pregnant woman, and ensures the uniform distribution of the repair force. When clamping, the lower limbs swing upward following the movement, simulating the rehabilitation movement, assisting the passive contraction and relaxation of the pelvic muscles, and taking into account both the treatment effect and the use comfort. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 is the structural schematic diagram of the rehabilitation device of the present inventionFigure 2 ;

[0026] Figure 3 It is a schematic structural diagram of a multi - segment articulated support bed board, a clamping drive mechanism, an air - bag clamping element, and a servo - motor drive system;

[0027] Figure 4 It is a schematic structural diagram of a clamping drive mechanism, an air - bag clamping element, and a pelvic clamping support board;

[0028] Figure 5 It is a schematic structural diagram of an air - bag clamping element;

[0029] Figure 6 It is a schematic structural diagram of a telescopic side table. Detailed implementation manners

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] As Figure 1 , Figure 2 shown, a rehabilitation device for pelvic muscle repair includes: a multi - segment articulated support bed board 2, which includes a suprapubic support board 21, a lumbar support board 22, a pelvic clamping support board 23 that are sequentially articulated, and a lower - limb support board 24 fixedly connected to the pelvic clamping support board 23; an air - bag clamping element 3, a pair of air - bag clamping elements 3 symmetrically slide on the pelvic clamping support board 23. When the pair of air - bag clamping elements 3 approach each other to clamp the asymmetrical pelvic part on the left and right, the lower - limb support board 24 deflects upward, driving the lower limbs to swing upward accordingly; a deformation amount detection unit 4, which is built in the air bag 31 of the air - bag clamping element 3, is used to detect the deformation amount of the air bag 31 and send the measured deformation amount to the control system, and the control system has a built - in deformation amount difference threshold; the clamping movement of the pair of air - bag clamping elements 3 includes a same - speed clamping movement before touching the pelvic part and a differential - speed clamping movement after touching the pelvic part; and when the difference between the deformation amounts of the two air bags 31 is greater than the deformation amount difference threshold, the differential - speed clamping movement is triggered: the clamping movement speed of the air - bag clamping element 3 on the high - deformation - amount side is lower than the clamping movement speed of the air - bag clamping element 3 on the low - deformation - amount side, so as to reduce the difference in clamping force on both sides of the pelvis. Through the multi - segment articulated structure design of the bed board, the present invention supports segmented adjustment of the pregnant woman's body position, mainly with the upward swing of the lower limbs and supplemented by semi - lying above the waist, promoting the stretching and repair of the pelvic muscles. Through the differential - speed clamping of the air bags, the clamping speed is dynamically adjusted according to the deformation amount difference to balance the clamping force on both sides, adapt to the differences in soft tissues on both sides of the pelvis, such as the hardness and softness differences caused by uneven fat distribution and the asymmetrical structural differences on both sides of the pelvis of special pregnant woman groups, avoid excessive unilateral compression causing discomfort or personal injury, protect the pregnant woman, ensure uniform distribution of the repair force, and when clamping, the lower limbs swing upward accordingly, simulating the rehabilitation movement, assisting the passive contraction and relaxation of the pelvic muscles, taking into account both the treatment effect and the use comfort.

[0032] It should be noted that the soft tissues on both sides of the pregnant woman's pelvis are unevenly distributed, that is, the special pelvic part with left - right asymmetry. For example, the fat layer on one side is thicker and the touch is soft, while the muscle or bone structure on the other side is more prominent, and there are tissue - structural differences on both sides of the pelvis.

[0033] More specifically, the pair of air - bag clamping elements 3 are the left - side air - bag clamping element and the right - side air - bag clamping element. Correspondingly, the deformation - amount detection unit 4 is the left - side deformation - amount detection unit and the right - side deformation - amount detection unit. The left - side actual measured deformation amount of the left - side deformation - amount detection unit is compared and calculated with the right - side actual measured deformation amount of the right - side deformation - amount detection unit to form an actual measured deformation - amount difference. The actual measured deformation - amount difference is compared with the deformation - amount difference threshold, and the control system judges and controls the differential clamping movement of the left - side air - bag clamping element and the right - side air - bag clamping element. The specific analysis is as follows:

[0034] 1) When the actual measured deformation - amount difference is not greater than the deformation - amount difference threshold, it indicates that the clamping force applied to both sides of the pregnant woman's pelvic muscles is appropriate, and it will not cause discomfort to the pregnant woman. Moreover, the clamping force is reliable, and the air - bag clamping element 3 does not need to perform differential clamping movement.

[0035] 2) When the actual measured deformation - amount difference is greater than the deformation - amount difference threshold, it indicates that the clamping force applied to both sides of the pregnant woman's pelvic muscles is unbalanced, which means that the clamping of the left - right asymmetric pelvic part of the special pregnant woman will cause discomfort to the pregnant woman, and the clamping force is unstable. The air - bag clamping element 3 needs to perform differential clamping movement, as follows:

[0036] 2.1) When the left - side actual measured deformation amount is greater than the right - side actual measured deformation amount, increase the clamping movement speed of the right - side air - bag clamping element;

[0037] 2.2) When the right - side actual measured deformation amount is greater than the left - side actual measured deformation amount, increase the clamping movement speed of the left - side air - bag clamping element.

[0038] As Figure 5 shown, the deformation - amount detection unit 4 is a resistance strain gauge centered on the air - bag clamping element 3. One end of the resistance strain gauge is connected to the air - bag 31, and the other end is connected to the clamping plate 32 of the air - bag clamping element 3. The resistance strain gauge directly measures the deformation between the air - bag 31 and the clamping plate 32, reflects the actual clamping force, avoids misjudgment caused by the elastic error of the air - bag material, forms accurate deformation feedback, and the centered setting of the resistance strain gauge ensures the accuracy and independence of the deformation amount, providing a reliable data basis for differential fine - tuning.

[0039] As Figure 1 and Figure 2As shown in the figure, the present invention includes a clamping drive mechanism 5, and the clamping drive mechanism 5 drives the airbag clamping elements 3 to move closer to each other in the width direction of the bed body, performing clamping on both sides of the pelvic region. The clamping drive mechanism 5 ensures that the two airbag clamping elements 3 move at the same initial speed, quickly positioning to the pelvic area, reducing operation delay. More importantly, it prepares for subsequent differential fine-tuning, and slides along the width direction of the bed to avoid longitudinal deviation, ensuring that the clamping force acts vertically on the midline of the pelvis.

[0040] More specifically, as Figure 1 , Figure 3 and Figure 4 shown, the clamping drive mechanism 5 includes a single-screw servo motor drive mechanism 5.1 and a speed compensation drive mechanism 5.2; the two airbag clamping elements 3 are arranged on the screw 51 of the same single-screw servo motor drive mechanism 5.1, and the two airbag clamping elements 3 are respectively arranged on the sliders 52 on the screw 51 through the corresponding speed compensation drive mechanisms 5.2, and the two sliders 52 have opposite helix directions in threaded engagement with the screw 51; when the speed compensation drive mechanism 5.2 is closed, the airbag clamping element 3 remains relatively fixed to the corresponding slider 52; when the speed compensation drive mechanism 5.2 is started, the airbag clamping element 3 is driven by the speed compensation drive mechanism 5.2 to move relative to the corresponding slider 52; the single-screw servo motor drive mechanism 5.1 is used to drive the two airbag clamping elements 3 to perform the same-speed clamping movement, and when one of the airbag clamping elements 3 is driven in the same direction by the corresponding speed compensation drive mechanism 5.2, this airbag clamping element 3 obtains a dual drive composed of the superposition of the single-screw servo motor drive mechanism 5.1 and the speed compensation drive mechanism 5.2, so that the clamping movement speed of this airbag clamping element 3 is greater than the clamping movement speed of the other airbag clamping element 3, realizing the differential clamping movement of the two airbag clamping elements 3. The seamless switching between the same speed and the differential speed, single-screw drive, realizes the initial same-speed clamping movement. After the superposition movement of the speed compensation drive mechanism 5.2, one side increases in speed and the other side remains unchanged in speed, thus forming a speed difference, precisely controlling the clamping difference, and perfectly adapting to the left-right asymmetric pelvic balance clamping of pregnant women.

[0041] In addition, the differential clamping movement also has the ability of dynamic adjustment, which is applicable to real-time feedback scenarios such as the slight movement of the pregnant woman's body position, and quickly responds to the difference in deformation.

[0042] The present invention includes a pressure sensor 7, which is used to detect the airbag pressure of the airbag clamping element 3 and is interlocked with the clamping drive mechanism 5 through the control system; the control system has a built-in pressure safety threshold. During the clamping movement of the airbag clamping element 3, when the measured pressure value is greater than the pressure safety threshold, the control system controls the clamping drive mechanism 5 to lock. Locking immediately when the pressure exceeds the limit can prevent soft tissue damage caused by excessive clamping, especially protecting the side with less fat.

[0043] The pelvic clamping support plate 23 is a frame plate structure. The bottom of the clamping plate 32 of the airbag clamping element 3 is located inside the pelvic clamping support plate 23, forming a guiding effect on the movement of the airbag clamping element 3 along the width direction of the bed. The frame plate structure restricts the movement path of the airbag clamping element, avoiding clamping misalignment caused by lateral deviation.

[0044] In order to improve the accuracy of differential fine-tuning, the speed compensation drive mechanism 5.2 of the present invention is a servo electric push rod. The servo electric push rod has a fast response and precise displacement control, and can achieve a speed difference adjustment at the micron level.

[0045] The present invention includes a first servo motor drive system 6 corresponding to the multi-section articulated support bed board 2. The first servo motor drive system 6 includes a first servo motor and a first gear transmission component. The first servo motor is connected to the articulated shaft where the pelvic clamping support plate 23 and the lumbar support plate 22 are articulated through the first gear transmission component, and is used to drive the lower limb support plate 24 to deflect upward, realizing the upward swing of the lower limbs. The upward swing amplitude can be adjusted according to the tolerance of the pregnant woman to adapt to the needs of different rehabilitation stages. It also includes a second servo motor drive system 8 corresponding to the multi-section articulated support bed board 2. The second servo motor drive system 8 includes a second servo motor and a second gear transmission component. The second servo motor is connected to the articulated shaft where the upper lumbar support plate 21 and the lumbar support plate 22 are articulated through the second gear transmission component, and is used to drive the upper lumbar support plate 21 to deflect upward, realizing the body position conversion from the supine position to the semi-recumbent position. The semi-recumbent position can reduce the lumbar spine pressure and relieve the discomfort of lying supine for a long time.

[0046] On both sides of the medical bed 1, armrests 9 are symmetrically arranged, which can be switched between the folded state and the unfolded state through folding movement. When unfolded, they provide grasping support for the pregnant woman to prevent slipping during body position adjustment. When folded, it is convenient for the pregnant woman to get on and off the bed.

[0047] As Figure 6As shown in the figure, a retractable side table 10 is provided on one side of the medical bed 1. The retractable side table 10 has a connecting rod 11. Both ends of the connecting rod 11 are damped and hinged to the medical bed 1 and the retractable side table 10 respectively, so that the retractable side table 10 can perform circular motion to switch positions between the side-of-bed position and the on-bed position. When the retractable side table 10 is in the side-of-bed position, it is in a contracted structural form in a vertical posture. When the retractable side table 10 is switched from the side-of-bed position to the on-bed position, it is in a horizontal posture supported by the unfolded armrest 9, and the retractable side table 10 can be horizontally extended and overlapped on the other armrest 9. The retractable side table 10 in the on-bed position and unfolded is convenient for pregnant women to use, and the retractable side table 10 in the side-of-bed position and retracted brings spatial convenience to pregnant women.

[0048] The traditional clamping method is to use rigid symmetric clamping or uniform airbag compression, which cannot sense the soft-hard differences on both sides of the pelvis, such as uneven distribution of fat and muscle, resulting in overloading of unilateral pressure and easy causing soft tissue damage; moreover, it uses a single drive mode with a fixed clamping speed and lacks the ability of dynamic adjustment, so it cannot be applied to clamping of asymmetric pelvic parts on the left and right and is difficult to adapt to individual differences.

[0049] The differential clamping control of the present invention is to dynamically balance the clamping force by triggering the differential clamping movement through the real-time feedback of the pressure difference between both sides by the deformation detection unit; moreover, the single screw and the speed compensation drive mechanism 5.2 achieve initial same-speed clamping by a single-screw servo motor, and the speed compensation drive mechanism 5.2 realizes differential adjustment after superposition of movements, and can be applied to clamping of asymmetric pelvic parts on the left and right and can adapt to individual differences.

[0050] In summary, through the design of multi-section hinged bed boards, an intelligent clamping system with double feedback of deformation amount and pressure, and a differential drive mechanism, the present invention realizes precise, safe and personalized rehabilitation treatment for the repair of pregnant women's pelvic muscles. Especially for the differential fine-tuning requirements of asymmetric pelvic parts on the left and right, it ensures the balance and comfort of the clamping force, taking into account both the treatment effect and the use comfort of the repair of pregnant women's pelvic muscles.

[0051] The above are only the preferred embodiments of the present invention. It should be pointed out that: for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A rehabilitation device for pelvic muscle repair, characterized in that: Comprising: A multi - segment articulated support bed board (2), including a suprapubic support board (21), a lumbar support board (22), a pelvic clamping support board (23) articulated in sequence, and a lower limb support board (24) fixedly connected to the pelvic clamping support board (23); Airbag clamping elements (3), a pair of airbag clamping elements (3) sliding symmetrically on the pelvic clamping support board (23). When the pair of airbag clamping elements (3) approach each other and clamp the asymmetrical pelvic parts on both sides, the lower limb support board (24) deflects upward, driving the lower limbs to swing upward accordingly; A deformation amount detection unit (4), built - in the airbag (31) of the airbag clamping element (3), for detecting the deformation amount of the airbag (31) and sending the measured deformation amount to the control system, and the control system has a built - in deformation amount difference threshold; The clamping movement of the pair of airbag clamping elements (3) includes a same - speed clamping movement before touching the pelvic parts and a differential - speed clamping movement after touching the pelvic parts; and when the difference between the deformation amounts of the airbags (31) on both sides is greater than the deformation amount difference threshold, the differential - speed clamping movement is triggered: the clamping movement speed of the airbag clamping element (3) on the side with a higher deformation amount is lower than the clamping movement speed of the airbag clamping element (3) on the side with a lower deformation amount, so as to reduce the difference in clamping force on both sides of the pelvis.

2. The rehabilitation device for pelvic muscle repair according to claim 1, wherein: The pair of airbag clamping elements (3) are a left - side airbag clamping element and a right - side airbag clamping element, and the corresponding deformation amount detection units (4) are a left - side deformation amount detection unit and a right - side deformation amount detection unit. The left - side measured deformation amount of the left - side deformation amount detection unit is compared and calculated with the right - side measured deformation amount of the right - side deformation amount detection unit to form a measured deformation amount difference, and the measured deformation amount difference is compared with the deformation amount difference threshold. The control system judges and controls the differential - speed clamping movement of the left - side airbag clamping element and the right - side airbag clamping element.

3. The rehabilitation device for pelvic muscle repair according to claim 1, wherein: The deformation amount detection unit (4) is a resistance strain gauge centered on the airbag clamping element (3). One end of the resistance strain gauge is connected to the airbag (31), and the other end is connected to the clamping plate (32) of the airbag clamping element (3).

4. A rehabilitation device for pelvic muscle repair according to claim 3, characterized in that: Including a clamping drive mechanism (5), the clamping drive mechanism (5) drives the airbag clamping elements (3) to move closer to each other along the width direction of the bed body to perform clamping on both sides of the pelvic parts.

5. The rehabilitation device for pelvic muscle repair according to claim 4, wherein: The clamping drive mechanism (5) includes a single - screw servo - motor drive mechanism (5.1) and a speed - compensation drive mechanism (5.2); the two airbag clamping elements (3) are arranged on the screw (51) of the same single - screw servo - motor drive mechanism (5.1), and the two airbag clamping elements (3) are respectively arranged on the sliders (52) on the screw (51) through the corresponding speed - compensation drive mechanisms (5.2), and the rotation directions of the two sliders (52) in threaded cooperation with the screw (51) are opposite; When the speed compensation drive mechanism (5.2) is closed, the airbag clamping element (3) remains relatively fixed with respect to the corresponding slider (52); when the speed compensation drive mechanism (5.2) is activated, the airbag clamping element (3) is driven by the speed compensation drive mechanism (5.2) to move relative to the corresponding slider (52). The single-screw servo motor drive mechanism (5.1) is used to drive the two airbag clamping elements (3) to perform synchronous clamping movements. And when one of the airbag clamping elements (3) is driven in the same direction by the corresponding speed compensation drive mechanism (5.2), this airbag clamping element (3) obtains a dual drive composed of the superposition of the single-screw servo motor drive mechanism (5.1) and the speed compensation drive mechanism (5.2), so that the clamping movement speed of this airbag clamping element (3) is greater than the clamping movement speed of the other airbag clamping element (3), realizing the differential clamping movement of the two airbag clamping elements (3).

6. The rehabilitation device for pelvic muscle repair according to claim 4, characterized in that: It includes a pressure sensor (7), and the pressure sensor (7) is used to detect the airbag pressure of the airbag clamping element (3) and is interlocked with the clamping drive mechanism (5) through the control system. The control system has a built-in pressure safety threshold. During the clamping movement of the airbag clamping element (3), when the measured pressure value is greater than the pressure safety threshold, the control system controls the clamping drive mechanism (5) to lock.

7. The rehabilitation device for pelvic muscle repair according to claim 4, characterized in that: The pelvic clamping support plate (23) is a frame plate structure, and the bottom of the clamping plate (32) of the airbag clamping element (3) is located within the pelvic clamping support plate (23), forming a guiding effect on the movement of the airbag clamping element (3) along the width direction of the bed body.

8. The rehabilitation device for pelvic muscle repair according to claim 4, characterized in that: The speed compensation drive mechanism (5.2) is a servo electric push rod.

9. A rehabilitation device for pelvic muscle repair according to claim 1, characterized in that: It includes a first servo motor drive system (6) corresponding to the multi-section articulated support bed board (2). The first servo motor drive system (6) includes a first servo motor and a first gear transmission assembly. The first servo motor is connected to the articulated shaft where the pelvic clamping support plate (23) and the lumbar support plate (22) are articulated through the first gear transmission assembly, and is used to drive the lower limb support plate (24) to deflect upward, realizing the upward swing of the lower limbs.

10. A rehabilitation device for pelvic muscle repair according to claim 1, characterized in that: It includes a second servo motor drive system (8) corresponding to the multi-section articulated support bed board (2). The second servo motor drive system (8) includes a second servo motor and a second gear transmission assembly. The second servo motor is connected to the articulated shaft where the upper lumbar support plate (21) and the lumbar support plate (22) are articulated through the second gear transmission assembly, and is used to drive the upper lumbar support plate (21) to deflect upward, realizing the body position conversion from the supine position to the semi-recumbent position.

11. The rehabilitation device for pelvic muscle repair according to claim 1, characterized in that: On both sides of the medical bed (1), armrests (9) are symmetrically arranged, which can be switched between the folded state and the unfolded state through folding movement.

12. The rehabilitation device for pelvic muscle repair according to claim 11, characterized in that: On one side of the medical bed (1), there is a telescopic side table (10). The telescopic side table (10) has a connecting rod (11). The two ends of the connecting rod (11) are respectively damping hinged to the medical bed (1) and the telescopic side table (10), so that the telescopic side table (10) can perform circular motion to switch positions between the side-of-bed position and the on-bed position.

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