Auxiliary device for delivery of pregnant woman in obstetrical department

Abstract

The invention relates to the technical field of medical instruments, in particular to an obstetrical maternity delivery auxiliary device which comprises a frame body and an auxiliary system used for assisting delivery, a bottom plate is fixedly connected to the top of the frame body, and a back plate and a leg support are hinged to the two sides of the frame body respectively; the frame body is provided with an adjusting assembly used for adjusting the angle of the back plate and a rotating assembly used for adjusting the angle of the leg support. Grips are symmetrically and slidably matched with the top of the bottom plate, and sensing layers are fixedly connected to the surfaces of the grips and the leg supports; the sensing layer is used for acquiring force application information during delivery of a pregnant woman, and the auxiliary system is in signal connection with the sensing layer; the auxiliary system is used for controlling the adjusting assembly and the rotating assembly to operate based on the force generation information. Force generation information is collected in real time through the sensing layers on the surfaces of the grip and the leg support, the supporting force of the device is adjusted in real time, and a dynamic supporting and adjusting mode is established.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an obstetric delivery auxiliary device for pregnant women. Background Art

[0002] A variety of unforeseen circumstances can arise during childbirth, such as fetal distress and labor arrest. Using appropriate childbirth assistance devices can help the medical team better monitor the mother and fetus, promptly identifying and addressing potential issues. Some childbirth assistance devices are designed and used primarily to address a variety of factors, aiming to improve childbirth safety, alleviate maternal pain, and enhance the delivery experience.

[0003] Existing technologies, such as the AFFINITY 4 delivery bed offered by Hillrom, are designed specifically for delivery (including intensive care delivery), delivery, recovery, and postpartum rehabilitation, emphasizing safety, ease of use, and a positive experience for both mothers and medical staff. The foot section of this delivery bed easily locks into place, ensuring both security and convenience. The calf support can be moved to the correct position and securely locked in place by a single locking lever.

[0004] During childbirth, women frequently exert force and adjust their posture, placing ever-changing pressure on various parts of their body. However, these devices lack pressure sensors and are unable to detect the force applied at these contact points. This can hinder timely recognition and response when women experience postural deviation or excessive unilateral force, compromising the device's safety and stability. Therefore, a device specifically designed for assisting obstetric delivery is necessary. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides an obstetric delivery assistance device for pregnant women, which dynamically controls the adjustment component and the rotation component after analyzing the force information through the auxiliary system, adjusts the backboard inclination angle, leg support angle and handle position, so that the device always fits the current force state of the pregnant woman, improves the stability of the device, and matches the support state of the device with the force of the pregnant woman; avoids muscle fatigue or support failure caused by fixed posture or delayed adjustment, and improves the comfort and safety of the delivery process.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an obstetric delivery auxiliary device for pregnant women, including a frame and an auxiliary system for assisting delivery, the top of the frame is fixedly connected to a base plate, and the two sides of the frame are respectively hinged with a back plate and a leg rest; the frame is respectively provided with an adjustment component for adjusting the angle of the back plate and a rotating component for adjusting the angle of the leg rest.

[0007] A handle is symmetrically slidably fitted on the top of the base plate, and a sensing layer is fixedly connected to the surface of the handle and the leg rest; the sensing layer is used to obtain the force information of the pregnant woman during childbirth, and the auxiliary system is connected to the signal of the sensing layer; the auxiliary system is used to control the operation of the adjustment component and the rotation component based on the force information; the auxiliary system is also used to control the operation of the adjustment component and the rotation component respectively according to the difference in force information obtained by the sensing layer on the handle and the leg rest to provide support for the pregnant woman when exerting force.

[0008] The back panel is also provided with a support component for supporting the waist and head; the bottom panel is provided with a transmission component for adjusting the position of the handle; the adjustment component is used to drive the support component and the transmission component to operate synchronously to adapt to the changes in the posture of the pregnant woman's limbs.

[0009] The technical principles of the above solution are as follows:

[0010] When the backboard or leg rest angle needs to be adjusted, the adjustment component and the rotation component are controlled to operate separately to adjust to the appropriate delivery position. After the adjustment is completed, the pressure distribution data of the pregnant woman when exerting force is collected in real time through the sensing layer integrated in the handle and the leg rest surface, and the pressure distribution data is analyzed and compared to determine the current stage of labor. Adjustment instructions are generated based on the pressure distribution difference, and the adjustment component and the rotation component are adjusted and controlled separately to make the pressure feedback match the preset standard force curve. And when the adjustment component is running, the support component and the transmission component are used to synchronously adjust the position of each support part, so that each part can adapt to the changes in the body trunk in different postures, thereby improving the adaptability of the device.

[0011] The above scheme has the following beneficial effects:

[0012] 1. The present invention collects force information in real time through the sensing layer on the surface of the handle and the leg rest, adjusts the support strength of the device in real time, and establishes a dynamic support adjustment mode; traditional delivery devices are mostly fixed in position or require repeated manual adjustment, which can easily cause pregnant women to consume extra physical strength due to body position discomfort. The auxiliary system of this solution analyzes the force information and dynamically controls the adjustment component and the rotation component to adjust the backboard tilt angle, leg rest support angle and handle position, so that the device always fits the current force state of the pregnant woman, improves the stability of the device, and matches the support state of the device with the force of the pregnant woman; avoids muscle fatigue or support failure caused by fixed position or delayed adjustment, and improves the comfort and safety of the delivery process.

[0013] 2. This invention achieves simultaneous adaptation of multiple body parts by linking the adjustment assembly with the support assembly and transmission assembly. When the backrest is adjusted, the waist and head mounts move synchronously for dynamic alignment, and the headrest adjusts its angle to maintain a snug fit. The handles slide to match the hand position, minimizing body distortion or localized pressure caused by adjustments to a single part. This coordinated design ensures that the entire pregnant body, from head to lower limbs, is supported, enhancing the device's adaptability and support stability.

[0014] 3. The present invention automatically identifies the labor stage by comparing real-time pressure data with the standard force curve through an auxiliary system, and dynamically switches the adjustment strategy. When the pressure fluctuations are detected to be gentle during the first labor stage, the device automatically maintains a comfortable position to reduce physical exertion; when the pressure peak rises during the second labor stage, it is synchronously adjusted to a force-generating position without the need for frequent medical intervention. This design of intelligent prejudgment and automatic adjustment not only reduces the workload of medical staff, but also ensures that the body position and force requirements at each stage of labor match, significantly improving delivery efficiency and the efficiency of medical resource utilization.

[0015] Furthermore, the adjustment component includes a telescopic member fixedly connected to the frame, the auxiliary system is used to control the operation of the telescopic member, and the output shaft of the telescopic member is hinged to the back plate.

[0016] Beneficial Effects: The design employs an articulated telescopic member, allowing for precise control of the telescopic member's extension and retraction length through an auxiliary system, enabling dynamic adjustment of the backrest angle. Compared to traditional fixed-position or manual adjustment mechanisms, this allows for real-time adjustment of the backrest's tilt based on the maternal force information collected by the sensor layer, ensuring that support closely matches the maternal body movements. Furthermore, the articulated structure of the telescopic member, frame, and backrest simplifies the transmission chain, reduces mechanical redundancy, and improves the stability and reliability of adjustment, providing safer and more flexible support for the delivery process.

[0017] Furthermore, the supporting assembly includes a waist plate and a head plate slidably connected to the back plate, and both ends of the hinge axis of the back plate and the frame are coaxially fixedly connected with the first gear; the first gear is meshed with the second gear, and the second gear is meshed with the first rack; the first rack is slidably connected to the back plate, and the end of the first rack away from the second gear is fixedly connected to the connecting rod; the end of the connecting rod away from the first rack is fixedly connected to the outer wall of the waist plate, and the top of the waist plate is also fixedly connected to a bearing rod, and the end of the bearing rod away from the waist plate is fixedly connected to the outer wall of the head plate.

[0018] Beneficial effect: Through the linkage structure of the first gear, the first rack and the second gear, the synchronous dynamic adaptation of the backboard angle adjustment and the waist and head support is achieved. When the hinge shaft of the backboard rotates, the first gears at both ends of the hinge shaft rotate synchronously, and the first rack is driven to slide linearly through the engagement of the second gear, and the waist board is driven to slide along the backboard through the connecting rod. At the same time, the load-bearing rod links the head board to adjust the position synchronously. This design does not require an additional power source and can ensure adaptation only through mechanical transmission; when the backboard is tilted, the waist board automatically slides up to fill the waist suspension, and the head board moves forward synchronously to keep the head fit; when the backboard is reset, the waist and head boards slide in the opposite direction to return to the initial position. It not only simplifies the structure of the device, but also improves the fit and comfort of the waist and head of pregnant women during childbirth.

[0019] Furthermore, the transmission assembly includes a second rack symmetrically slidably connected to the base plate, the second racks are meshed with the first gear, and one end of the second rack away from the first gear is fixedly connected to the handle.

[0020] Beneficial effect: Through the mechanical linkage design of the first gear and the second rack, the synchronous dynamic adaptation of the back panel angle adjustment and the handle position is achieved. When the back panel hinge shaft rotates, the first gear on the hinge shaft rotates synchronously, driving the second rack meshing with it to slide along the bottom plate, thereby driving the handle to adjust its position. This design does not require an additional power source or electronic control components, and can ensure the fit of the components only through mechanical transmission; the position of the hand force changes due to changes in the posture of pregnant women, reducing excessive force caused by the fixed position of the handle, simplifying the device structure, improving the reliability of the device and the convenience of maintenance, and providing a more fitting and stable hand support during the delivery process.

[0021] Furthermore, the rotating assembly includes a rotating part fixedly connected to the outer wall of the frame, and the auxiliary system is used to control the operation of the rotating part; the output shaft of the rotating part is coaxially fixedly connected to the third gear, and the hinge shaft of the leg support and the frame is coaxially fixedly connected to the fourth gear, and the third gear and the fourth gear are engaged with each other.

[0022] An arc-shaped plate is hingedly connected to the leg support on the side away from the frame; and a rotating assembly for driving the arc-shaped plate to adjust the angle is provided on the frame.

[0023] Beneficial Effects: Through the design of gear meshing transmission and intelligent control of the auxiliary system, the leg rest angle can be adjusted and adapted to the leg support. The auxiliary system drives the rotating part based on the leg force information collected by the sensing layer. The meshing transmission of the third and fourth gears controls the rotation of the leg rest's hinge shaft. At the same time, the curved plate on the leg rest can be adjusted in angle through the rotating assembly to meet different leg support requirements, ensuring the matching of leg positions during labor. The stability of the mechanical transmission reduces the risk of failure and improves the comfort and safety of the leg support during delivery.

[0024] Furthermore, the rotating assembly includes a rotating wheel coaxially fixedly connected to the hinge shaft of the leg rest and the frame, and a pull wire is fixedly connected to the rotating wheel; the end of the pull wire away from the rotating wheel is fixedly connected to the arc plate, and a torsion spring is also provided at the hinge between the arc plate and the leg rest.

[0025] Beneficial Effects: Through the mechanical linkage of a rotating wheel, a pull cable, and a torsion spring, the leg support angle and the curved plate support are synchronized and adaptively adjusted. As the leg support rotates around the hinge axis, the coaxially fixed rotating wheel rotates synchronously. The pull cable pulls the curved plate, which, in conjunction with the elastic restoring force of the torsion spring, adjusts the angle of contact between the curved plate and the leg. This synchronized movement of the leg support and the coordinated adjustment of the curved plate is achieved through mechanical transmission, eliminating the need for an additional power source. This simplifies the device structure and improves the fit and comfort of the leg support during childbirth.

[0026] Furthermore, a hydraulic component is fixedly connected to the bottom of the frame, the auxiliary system is used to control the operation of the hydraulic component, and the output shaft of the hydraulic component is fixedly connected to the bottom of the base plate; a telescopic rod is fixedly connected between the frame and the base plate, and the frame is fixedly connected to the base plate through the telescopic rod.

[0027] Beneficial Effects: The linkage design of hydraulic components and telescopic rods enables intelligent adjustment of the base height and stable support. The auxiliary system, informed by the pregnant woman's body position, drives the hydraulic components to extend and retract, adjusting the base height via the output shaft. The telescopic rods also serve as guides, ensuring smooth raising and lowering of the base, meeting the support height requirements of pregnant women of varying body shapes and enhancing the safety and adaptability of the childbirth assistance system.

[0028] Furthermore, a plurality of universal wheels are fixedly connected to the bottom of the frame.

[0029] Beneficial effects: The device can be flexibly moved and quickly positioned through universal wheels, and can be easily turned in spaces such as delivery rooms and waiting rooms. Combined with the evenly distributed multi-wheel design, the movement process is smooth and without tilting.

[0030] Furthermore, the auxiliary system includes the following modules:

[0031] The data processing module is used to collect the force information emitted by the sensing layer on the handle and the leg rest, and compare the pressure difference between the sensing layer on the handle and the leg rest; and transmit the pressure difference to the posture decision module.

[0032] The posture decision module is used to set the pressure threshold of the handle and the leg rest, and generates control instructions for the adjustment component and the rotation component respectively when the pressure difference reaches the pressure threshold.

[0033] The linkage execution module is used to control the operation of the device according to the control instructions and synchronously trigger the displacement of the support component and the transmission component.

[0034] Beneficial effects: Through the collaborative design of multiple modules, intelligent dynamic adaptation and precise control of delivery assistance are achieved; the data processing module collects the pressure difference between the handle and the leg support in real time, and promptly captures the dynamic differences in the force of the pregnant woman's hands and legs; the posture decision module generates control instructions based on the preset pressure threshold; the linkage execution module synchronously drives the adjustment component, the rotation component, and the support and transmission component. The joint control of multiple modules enables the device to dynamically adjust the support structure according to the real-time force status of the pregnant woman, reduce the extra physical energy consumption of the mother due to uncomfortable body position, avoid action conflicts between components through precise linkage, and improve the safety and comfort of the delivery process.

[0035] Furthermore, the auxiliary system also includes an electromyographic sensing module, a force fusion module and a posture optimization module; the electromyographic sensing module is embedded inside the sensing layer and is used to collect the electromyographic signals of the hands and feet when holding the handle and leaning against the leg rest.

[0036] The force fusion module is used to establish the force intensity coefficient and fuse the force information and electromyographic signals.

[0037] The posture optimization module is used to establish a dynamic threshold of the force intensity coefficient after fusion. When the force intensity coefficient reaches the dynamic threshold, the output length of the telescopic part in the adjustment component is increased, and the number of rotations of the rotating part in the rotation component is increased.

[0038] Beneficial effects: By embedding the electromyographic sensing module into the sensing layer, the electrical activity of the hand and foot muscles is captured to compensate for the lag of single pressure data; the force fusion module fuses the pressure difference with the electromyographic signal to generate an intensity coefficient to reflect the actual force status of the mother; the posture optimization module is based on the dynamic threshold, and synchronously increases the output length of the telescopic part and the number of rotations of the rotating part, so that the support structure actively matches the force demand of the mother, reducing the discomfort caused by over-adjustment, and improving the intelligence of the device response through dual-dimensional feedback of electromyography and pressure, significantly enhancing the fit and comfort of the delivery assistance.

[0039] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is an axonometric diagram of the obstetric delivery assist device of the present invention.

[0041] Figure 2 For the present invention Figure 1 Top view in .

[0042] Figure 3 For the present invention Figure 2 Cross-sectional view of AA in the figure.

[0043] Figure 4 For the present invention Figure 3 Enlarged view of part B

[0044] Figure 5 For the present invention Figure 1 Structural block diagram of the auxiliary system.

[0045] The figure marks in the drawings of the specification include: 1. frame; 2. base plate; 3. back plate; 4. leg rest; 5. handle; 6. telescopic part; 7. waist plate; 8. head plate; 9. first gear; 10. second gear; 11. first rack; 12. connecting rod; 13. load-bearing rod; 14. second rack; 15. rotating part; 16. third gear; 17. fourth gear; 18. arc plate; 19. rotating wheel; 20. hydraulic part; 21. universal wheel. DETAILED DESCRIPTION

[0046] The following is further described in detail through specific implementation methods:

[0047] Example 1:

[0048] As attached Figure 1 and Figure 2 The figure shows an obstetric and gynecological assistance device for pregnant women, comprising a frame 1 and an auxiliary system for assisting childbirth. The top of the frame 1 is bolted to a base plate 2, and two sides of the frame 1 are hingedly connected to a back plate 3 and a leg rest 4. The frame 1 is provided with an adjustment assembly for adjusting the angle of the back plate 3 and a rotation assembly for adjusting the angle of the leg rest 4. The bottom of the frame 1 is bolted to a plurality of universal wheels 21, which enable flexible movement and rapid positioning of the device, allowing for convenient steering within spaces such as delivery rooms and waiting rooms. The evenly distributed design of the multiple wheels ensures smooth, tilt-free movement.

[0049] A handle 5 is symmetrically slidably fitted on the top of the base plate 2, and a sensing layer is fixedly bonded to the surface of the handle 5 and the leg rest 4. In this embodiment, the sensing layer uses conductive silicone and is covered with 5mm thick memory foam; the sensing layer is used to obtain the force information of the pregnant woman during childbirth, and the auxiliary system is connected to the sensing layer signal; the auxiliary system is used to control the operation of the adjustment component and the rotation component based on the force information; the auxiliary system is also used to control the operation of the adjustment component and the rotation component according to the difference in force information obtained by the sensing layer on the handle 5 and the leg rest 4, so as to provide support for the pregnant woman when exerting force.

[0050] For example, when a pregnant woman enters the first active stage of labor (cervix dilated to 5cm), the interval between contractions is 2-3 minutes, and each contraction lasts 40-60 seconds. During contractions, the pregnant woman exerts force by gripping with her hands and stepping on her feet. The auxiliary system collects the grip and stepping forces in real time, dynamically adjusts the angles of the backboard 3 and leg support 4, and provides reverse support.

[0051] The back plate 3 is also provided with a support assembly for supporting the waist and head; the bottom plate 2 is provided with a transmission assembly for adjusting the position of the handle 5; the adjustment assembly is used to drive the support assembly and the transmission assembly to operate synchronously to adapt to the changes in the posture of the pregnant woman's limbs.

[0052] Combine Figure 3 As shown, the adjustment assembly includes a telescopic member 6 bolted to the frame 1. In this embodiment, the telescopic member 6 is an electric push rod. An auxiliary system is used to control the operation of the telescopic member 6. The output shaft of the telescopic member 6 is hingedly connected to the back panel 3. Since the back panel 3 is hingedly connected to the frame 1, the auxiliary system can control the extension and contraction length of the telescopic member 6 to raise or lower the back panel 3.

[0053] Combine Figure 4As shown, the support assembly includes a waist plate 7 and a head plate 8 slidingly connected to the back plate 3. In this embodiment, the waist plate 7 and the head plate 8 are made of flexible material; both ends of the hinge axis of the back plate 3 and the frame 1 are coaxially keyed with a first gear 9; the first gear 9 is meshed with a second gear 10, and the second gear 10 is rotatably connected to the outer wall of the back plate 3; the second gear 10 is meshed with a first rack 11; the first rack 11 is slidably connected to the back plate 3, and the end of the first rack 11 away from the second gear 10 is fixedly connected with a connecting rod 12 by screws; the end of the connecting rod 12 away from the first rack 11 is fixedly bonded to the outer wall of the waist plate 7, and a load-bearing rod 13 is also fixedly bonded to the top of the waist plate 7, and the end of the load-bearing rod 13 away from the waist plate 7 is fixedly bonded to the outer wall of the head plate 8.

[0054] Specifically, Figure 3 For example, when the auxiliary system controls the operation of the telescopic member 6, the output shaft of the telescopic member 6, through the hinge structure, pushes the back panel 3 upward around the hinge axis of the frame body 1. At this time, the first gear 9, which is keyed coaxially with the hinge axis, rotates synchronously with the back panel 3 (the key connection ensures no relative slip). When the first gear 9 rotates, the second gear 10 meshing with it is driven to rotate in the opposite direction. The reverse rotation of the second gear 10 further drives the first rack 11 meshing with it to move upward along the sliding track on the back panel 3 (the meshing converts rotational motion into linear motion).

[0055] The first rack 11, secured by screws to the connecting rod 12, pulls the lumbar plate 7 upward along the back plate 3 (the sliding connection ensures smooth movement). As the lumbar plate 7 moves upward, the supporting rod 13, fixed and bonded to its top, simultaneously pushes the head plate 8 upward along the back plate 3 (the rigid connection of the supporting rod 13 ensures synchronization). When a pregnant woman sits up, the center of her waist and head move upward simultaneously. The lumbar plate 7 and head plate 8 move upward synchronously during the lifting of the back plate 3, meeting the waist and head support needs of pregnant women when adjusting their sitting posture.

[0056] The transmission assembly includes a second rack 14 symmetrically slidably connected to the base plate 2. Each second rack 14 meshes with the first gear 9. The end of the second rack 14, away from the first gear 9, is screw-fixed to the handle 5. When the first gear 9 rotates, it simultaneously drives the second rack 14 to move linearly. When a pregnant woman sits up, her hands simultaneously lean forward, and the linear motion of the second rack 14 drives the handle 5 to adjust its position to suit her exercise posture.

[0057] Combine Figure 3 As shown, the rotating assembly includes a rotating member 15 fixedly connected to the outer wall of the frame 1 by bolts. In this embodiment, the rotating member 15 is a motor; the auxiliary system is used to control the operation of the rotating member 15; the output shaft of the rotating member 15 is coaxially keyed to a third gear 16, and the leg support 4 and the hinge axis of the frame 1 are coaxially fixed with a fourth gear 17, and the third gear 16 and the fourth gear 17 are engaged with each other.

[0058] An arc-shaped plate 18 is hingedly connected to the side of the leg support 4 away from the frame 1 ; a rotating assembly for driving the arc-shaped plate 18 to adjust its angle is provided on the frame 1 .

[0059] The rotating assembly includes a rotating wheel 19 coaxially keyed to the hinge axis between the leg rest 4 and the frame 1. A pull wire is fixedly bonded to the rotating wheel 19. The end of the pull wire, away from the rotating wheel 19, is fixedly connected to the curved plate 18. A torsion spring is also provided at the hinge between the curved plate 18 and the leg rest 4. In this embodiment, the pull wire is fixed to the outer wall of the rotating wheel 19, and when the rotating wheel 19 rotates, the pull wire is pulled. In the initial state of the torsion spring, the curved plate 18 is parallel to the leg rest 4.

[0060] Specifically, Figure 3 For example, when the auxiliary system controls the operation of the rotating member 15, the output shaft of the rotating member 15 drives the coaxially fixed third gear 16 to rotate; the third gear 16 drives the fourth gear 17 meshing with it to rotate synchronously through meshing transmission (the gear transmission ratio is determined by the number of teeth of the two gears). Since the fourth gear 17 is coaxially fixed on the hinge axis of the leg rest 4 and the frame 1, the leg rest 4 will rotate upward around the hinge axis (to achieve angle adjustment of the leg rest 4). In this embodiment, the leg rest 4 provides reverse support force for the foot when it rotates. When the pregnant woman exerts force, the reverse support force of the leg rest 4 is dynamically adjusted according to the data obtained by the sensing layer.

[0061] When the leg support 4 rotates around the hinge axis, the coaxially fixed wheel 19 rotates synchronously with the hinge axis; when the wheel 19 rotates, the pull wire fixed on it is wound (the pull wire is shortened during winding); the other end of the pull wire is fixed to the arc plate 18, so the winding of the pull wire will pull the arc plate 18, causing it to rotate around the hinge point with the leg support 4 (to adjust the angle of the arc plate 18); the rotating arc plate 18 can provide support for the calf of the pregnant woman, meeting diverse needs; and when the leg support 4 is reset, the torsion spring at the hinge between the arc plate 18 and the leg support 4 provides a reset force through elastic deformation, ensuring that the arc plate 18 can automatically return to its position when the pull wire is released.

[0062] The specific implementation process is as follows:

[0063] First, the auxiliary system obtains the force information of the pregnant woman during childbirth in real time through the conductive silicone sensing layer on the surface of the handle 5 and the leg support 4, and dynamically controls the operation of the adjustment component (backboard 3 angle) and the rotation component (leg support 4 angle) based on this information to ensure that the supporting action is synchronized with the changes in the pregnant woman's limb posture.

[0064] When the pregnant woman adjusts her sitting posture, the auxiliary system controls the extension of the telescopic member 6 of the adjustment assembly, pushing the back panel 3 upward around the hinge axis of the frame 1 (angle range: 0° to 90°). At this time, the first gear 9 coaxially keyed to the hinge axis of the back panel 3 rotates synchronously (transmission error ≤ 0.1°); the first gear 9 engages and drives the second gear 10 to rotate in the opposite direction, and the second gear 10 further drives the first rack 11 to move upward along the sliding track of the back panel 3 (displacement accuracy ± 0.5mm); the first rack 11 pulls the lumbar panel 7 upward through the connecting rod 12, and the bearing rod 13 at the top of the lumbar panel 7 simultaneously pushes the head panel 8 upward, achieving synchronous fit of the waist and head supports (fitting gap ≤ 2mm).

[0065] When the first gear 9 rotates, it engages synchronously and drives the second rack 14 on the base plate 2 to slide linearly (the sliding speed matches the lifting speed of the back plate 3). The second rack 14 drives the handle 5 to slide along the base plate 2, so that when the pregnant woman's hand leans forward, the handle 5 automatically follows and adjusts to fit the force-generating posture.

[0066] Based on the data from the sensing layer of the leg rest 4, the auxiliary system controls the rotating part 15 of the rotating assembly to drive the third gear 16 to rotate (the speed and number of revolutions are dynamically adjusted by the strength of the pregnant woman). The third gear 16 engages to drive the fourth gear 17 to rotate synchronously, driving the leg rest 4 to rotate upward around the hinge axis (angle range: 0°~30°), providing reverse support force for the pregnant woman's feet. At this time: the rotating wheel 19 coaxially fixed to the hinge axis of the leg rest 4 rotates synchronously, winding up the pull wire thereon; the pull wire pulls the arc plate 18 to rotate around the hinge point with the leg rest 4 (angle range: 0°~45°), providing arc support for the calf; when the leg rest 4 is reset, the torsion spring at the hinge releases the elastic force, pulling the arc plate 18 to automatically return to a state parallel to the leg rest 4.

[0067] This embodiment uses linkage structures such as gear racks, pull wires and torsion springs to achieve synchronous response of the angle adjustment of the backboard 3 and leg support 4 with the waist and head support, the position of the handle 5, and the angle of the arc plate 18, ensuring that all parts of the limbs (head, waist, hands, legs) are precisely supported when the pregnant woman exerts force (the fitting error is ≤ 2mm), thereby improving the comfort and safety of childbirth assistance.

[0068] Example 2:

[0069] As attached Figure 1 As shown, the difference from the above embodiment is that the bottom of the frame 1 is fixedly connected with a hydraulic component 20 by bolts. In this embodiment, the hydraulic component 20 is a hydraulic rod. The auxiliary system is used to control the operation of the hydraulic component 20. The output shaft of the hydraulic component 20 is fixedly connected with the bottom bolt of the base plate 2; a telescopic rod is fixedly connected with the frame 1 and the base plate 2 by bolts, and the frame 1 is fixedly connected with the base plate 2 by bolts through the telescopic rod.

[0070] The specific implementation process is as follows: Through the linkage design of hydraulic components 20 and telescopic rods, the base plate 2's height is intelligently adjusted and provides stable support. The auxiliary system, based on the pregnant woman's body position, drives the hydraulic components 20 to extend and retract, adjusting the base plate 2's height via the output shaft. Simultaneously, the telescopic rods act as guides, ensuring that the base plate 2 is raised and lowered without deviation or sway, meeting the support height requirements of pregnant women of varying body types and enhancing the safety and adaptability of the childbirth assistance system.

[0071] Example 3:

[0072] As attached Figure 5 As shown, the difference from the above embodiment is that the auxiliary system includes a data processing module for analyzing pressure differences, a posture decision module for sending control instructions, a linkage execution module for controlling the operation of the device, an electromyographic sensing module for collecting electromyographic signals, a force fusion module for establishing a force intensity coefficient, and a posture optimization module for optimizing the output size of the device.

[0073] The functions of each module are as follows:

[0074] The data processing module is used to collect the force information P emitted by the sensing layer on the handle 5 and the leg rest 4, and compare the pressure difference ΔP on the sensing layer of the handle 5 and the leg rest 4 (ΔP = |P handle 5 -P leg rest 4 |); and transmit the pressure difference to the posture decision module.

[0075] The posture decision module is used to set pressure thresholds for the handlebars 5 and leg rests 4. When the pressure difference ΔP reaches the pressure threshold, control commands are generated for the adjustment and rotational components, respectively. For example, if Phandlebars 5 > Pleg Rests 4, a command to raise the backboard 3 is generated for the adjustment component; if Pleg Rests 4 > Phandlebars 5, a command to extend the leg rest 4 is generated for the rotational component.

[0076] The linkage execution module is used to control the operation of the device according to the control instructions and synchronously trigger the displacement of the support component and the transmission component; the displacement S = k × ΔP (k is the clinical calibration coefficient).

[0077] The myoelectric sensing module is embedded in the sensing layer and is used to collect the myoelectric signals EMG of the hands and feet when holding the handle 5 and leaning against the leg rest 4.

[0078] The force fusion module is used to establish the force intensity coefficient and fuse the force information with the electromyographic signal. In this embodiment, the force intensity coefficient α = 0.7 × P normalization + 0.3 × EMG root mean square;

[0079] The posture optimization module is used to establish a dynamic threshold for the post-fusion force intensity coefficient. When the force intensity coefficient reaches the dynamic threshold, the output length of the telescopic member 6 in the adjustment assembly is increased, and the number of rotations of the rotating member 15 in the rotation assembly is increased. For example, when α>the dynamic threshold, the output force of the telescopic member 6 of the adjustment assembly is increased to F=k×α.

[0080] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An obstetric delivery assisting device for pregnant women, comprising a frame (1), the top of the frame (1) being fixedly connected to a bottom plate (2), and both sides of the frame (1) being hingedly connected to a back plate (3) and a leg support (4), characterized in that: It also includes an auxiliary system for assisting childbirth, wherein the frame (1) is provided with an adjustment component for adjusting the angle of the backboard (3) and a rotation component for adjusting the angle of the leg support (4); The top of the bottom plate (2) is symmetrically slidably fitted with a handle (5), and the handle (5) and the surface of the leg support (4) are both fixedly connected with a sensing layer; the sensing layer is used to obtain force information of a pregnant woman during childbirth, and the auxiliary system is connected to the sensing layer signal; the auxiliary system is used to control the operation of the adjustment component and the rotation component based on the force information; the auxiliary system is also used to control the operation of the adjustment component and the rotation component respectively according to the difference in force information obtained by the sensing layer on the handle (5) and the leg support (4) to provide support when the pregnant woman exerts force; The back plate (3) is also provided with a support assembly for supporting the waist and head; the bottom plate (2) is provided with a transmission assembly for adjusting the position of the handle (5); the adjustment assembly is used to drive the support assembly and the transmission assembly to operate synchronously to adapt to the changes in the posture of the pregnant woman's limbs.

2. The obstetric delivery assist device according to claim 1, characterized in that: The adjustment component comprises a telescopic member (6) fixedly connected to the frame (1); an auxiliary system is used to control the operation of the telescopic member (6); and an output shaft of the telescopic member (6) is hinged to the back plate (3).

3. The obstetric delivery assist device according to claim 2, characterized in that: The support assembly comprises a waist plate (7) and a head plate (8) which are slidably connected to the back plate (3); both ends of the hinge axis between the back plate (3) and the frame body (1) are coaxially fixedly connected with a first gear (9); the first gear (9) is meshed with a second gear (10), and the second gear (10) is meshed with a first rack (11); the first rack (11) is slidably connected to the back plate (3), and one end of the first rack (11) away from the second gear (10) is fixedly connected to a connecting rod (12); one end of the connecting rod (12) away from the first rack (11) is fixedly connected to the outer wall of the waist plate (7), and the top of the waist plate (7) is also fixedly connected with a bearing rod (13), and one end of the bearing rod (13) away from the waist plate (7) is fixedly connected to the outer wall of the head plate (8).

4. The obstetric delivery assist device according to claim 3, characterized in that: The transmission assembly includes a second rack (14) symmetrically slidably connected to the base plate (2), the second rack (14) is meshed with the first gear (9), and one end of the second rack (14) away from the first gear (9) is fixedly connected to the handle (5).

5. The obstetric delivery assist device according to claim 4, characterized in that: The rotating assembly includes a rotating member (15) fixedly connected to the outer wall of the frame (1), and the auxiliary system is used to control the operation of the rotating member (15); the output shaft of the rotating member (15) is coaxially fixedly connected to the third gear (16), and the leg support (4) and the hinge shaft of the frame (1) are coaxially fixedly connected to the fourth gear (17), and the third gear (16) and the fourth gear (17) are meshed with each other; The leg support (4) is further hingedly connected to a curved plate (18) on one side away from the frame (1); and the frame (1) is provided with a rotating assembly for driving the curved plate (18) to adjust the angle.

6. The obstetric delivery assist device according to claim 5, characterized in that: The rotating assembly includes a rotating wheel (19) coaxially fixedly connected to the hinge shaft of the leg support (4) and the frame (1), and a pull wire is fixedly connected to the rotating wheel (19); the end of the pull wire away from the rotating wheel (19) is fixedly connected to the arc plate (18), and a torsion spring is also provided at the hinge of the arc plate (18) and the leg support (4).

7. The obstetric delivery assist device according to claim 6, characterized in that: A hydraulic component (20) is fixedly connected to the bottom of the frame (1); an auxiliary system is used to control the operation of the hydraulic component (20); an output shaft of the hydraulic component (20) is fixedly connected to the bottom of the base plate (2); a telescopic rod is fixedly connected between the frame (1) and the base plate (2); and the frame (1) is fixedly connected to the base plate (2) via the telescopic rod.

8. The obstetric delivery assist device according to claim 7, characterized in that: A plurality of universal wheels (21) are fixedly connected to the bottom of the frame (1).

9. The obstetric and gynecological delivery assisting device according to claim 8, characterized in that: The auxiliary system includes the following modules: The data processing module is used to collect the force information emitted by the sensing layer on the handle (5) and the leg support (4), and compare the pressure difference on the sensing layer of the handle (5) and the leg support (4); and transmit the pressure difference to the posture decision module; A posture decision module is used to set the pressure threshold of the handle (5) and the leg support (4), and to generate control instructions for the adjustment component and the rotation component respectively when the pressure difference reaches the pressure threshold; The linkage execution module is used to control the operation of the device according to the control instructions and synchronously trigger the displacement of the support component and the transmission component.

10. The obstetric delivery assist device according to claim 9, characterized in that: The auxiliary system also includes an electromyographic sensing module, a force fusion module, and a posture optimization module; the electromyographic sensing module is embedded in the sensing layer and is used to collect electromyographic signals of the hands and feet when holding the handle (5) and leaning against the leg support (4); The force fusion module is used to establish the force intensity coefficient and fuse the force information with the electromyographic signal; The posture optimization module is used to establish a dynamic threshold value of the force intensity coefficient after fusion. When the force intensity coefficient reaches the dynamic threshold value, the output length of the telescopic component (6) in the adjustment component is increased, and the number of rotations of the rotating component (15) in the rotation component is increased.

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