Adjustable restraining device for child bronchoscope operation

Abstract

The invention relates to the technical field of medical instruments, in particular to an adjustable restraint device for child bronchoscope surgery, which comprises a support, a bed board is fixedly connected to the top of the support, and an adjusting component for adjusting the gravity center of the bed board is arranged at the bottom of the bed board. The adjusting assembly comprises a first lead screw and sliding blocks which are symmetrically and slidably matched with the bottom of the bed board, and balancing weights are fixedly connected to the bottoms of the sliding blocks; the sliding blocks are in threaded fit with the first lead screw, and the thread directions of the adjacent sliding blocks are opposite. Limiting rods are fixedly connected to the sliding blocks, penetrate through the sliding blocks on the opposite sides and are in sliding fit with the sliding blocks on the opposite sides. A driving assembly for driving the first lead screw to rotate and a limiting assembly for limiting the moving range of the sliding block are arranged at the bottom of the bed plate. The balance weight distribution can be dynamically adjusted according to the body length of a child patient, it is ensured that the gravity center of the bed board is matched with the body shape of the child patient, and the child patient is more reliably fixed in an operation through the synergistic effect of physical balance weights and a mechanical structure.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an adjustable restraint device for pediatric bronchoscopic surgery. Background Art

[0002] Bronchoscopy is a key technique in the diagnosis and treatment of respiratory diseases. It allows doctors to directly observe the interior of a patient's airways, which is crucial for diagnosing and treating various respiratory illnesses. However, when this technique is used in children, due to their smaller size, lower levels of cooperation, and limited understanding of medical procedures, special procedures must be designed to ensure safety and effectiveness.

[0003] Prior art, such as patent document CN220089653U, discloses an adjustable restraint device for pediatric bronchoscopic surgery. This device is designed to immobilize the child and reduce body and head movement; it eliminates the need for human intervention during the examination, reducing labor costs. However, this patent lacks control over the device's center of gravity, making it prone to shaking during surgery, potentially compromising safety.

[0004] In summary, how to solve the problem of the lack of a device for adjusting the center of gravity in the existing technology, which may make the device less safe, has become a difficult problem that needs to be solved urgently in this field. Therefore, it is necessary to propose an adjustable restraint device for pediatric bronchoscopic surgery. Summary of the Invention

[0005] To address these issues, the present invention provides an adjustable restraint device for pediatric bronchoscopic surgery. Through the linkage design of a first screw and a slider, the spacing between the counterweights can be adjusted. The counterweight distribution can be dynamically adjusted based on the patient's body length, ensuring that the center of gravity of the bedboard matches the patient's size. The synergistic effect of the physical counterweight and mechanical structure ensures more reliable fixation of the patient during surgery, reducing the risks associated with bronchoscopic procedures caused by differences in body size.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an adjustable restraint device for pediatric bronchoscopic surgery, comprising a bracket, the top of the bracket is fixedly connected to a bed board, and the bottom of the bed board is provided with an adjustment component for adjusting the center of gravity of the bed board.

[0007] The adjustment assembly includes a first screw rod and a slider that slides symmetrically on the bottom of the bed board, and the bottom of the slider is fixedly connected to a counterweight block; the sliders are threaded with the first screw rod, and the thread directions of adjacent sliders are opposite; the sliders are fixedly connected to a limit rod, and the limit rods pass through the slider on the opposite side and slide with the slider on the opposite side.

[0008] The bottom of the bed is equipped with a drive assembly for rotating the first screw and a limit assembly for limiting the movement range of the slider. The bed is also equipped with several clamping assemblies for securing the limbs, a fixing assembly for clamping the head, and an encircling assembly for securing the chest. The drive assembly is used to drive the clamping assemblies to secure the limbs, the fixing assembly to clamp the head, and the encircling assembly to secure the chest.

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

[0010] The first screw is driven to rotate by the driving assembly. Since the sliders are all engaged with the first screw thread and the thread directions of adjacent sliders are opposite, the rotation of the first screw can synchronously drive the sliders to move, so that the sliders move closer to or farther away from each other, thereby adjusting the spacing of the counterweight blocks to meet the counterweight adjustment needs of children of different body lengths. During the movement of the slider, the limit rod provides a limit for it, so that the slider maintains a linear motion trajectory; and the design of the limit assembly allows the slider to slide within a safe sliding range, further improving the stability of the device. In the process of adjusting the sliding position, the design of the clamping assembly can be used to restrain the child's limbs, the fixing assembly can be used to restrain the child's head, and the design of the embracing assembly can be used to restrain the child's chest; the child can be restrained and fixed by various fixing methods, improving the stability of the bronchoscopic surgery operation.

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

[0012] 1. This invention achieves adjustable spacing between counterweights through the linkage design of the first screw and the sliders. When the drive assembly rotates the first screw, the symmetrically distributed sliders move synchronously in opposite directions, dynamically adjusting the counterweight distribution based on the patient's body length, ensuring that the center of gravity of the bedboard matches the patient's size. The synergistic effect of the physical counterweight and the mechanical structure ensures more reliable fixation of the patient during surgery, reducing the risks of bronchoscopy due to differences in body size.

[0013] 2. This invention achieves regional restraint of the child's limbs, head, and chest through the coordinated design of the clamping, fixing, and embracing components. The drive component simultaneously controls the operation of each component while adjusting the counterweight, creating a mechanically linked, one-touch operation that reduces the complexity of manual adjustments by medical staff.

[0014] 3. The present invention utilizes a dual constraint design of a limit rod and a limit assembly to ensure the linear motion trajectory and controllable range of the slider during the adjustment process, reducing accidental sliding caused by mechanical displacement deviation, thereby enhancing the stability and safety of the device.

[0015] Furthermore, the driving assembly includes a controller and a rotating member, the controller is used to control the rotating member to rotate; the rotating member is fixedly connected to the bottom of the bed board, and the output shaft of the rotating member is coaxially fixedly connected to the first screw rod.

[0016] Beneficial Effects: The rotating member drives the first screw to rotate, enabling the slider to dynamically adjust the counterweight and synchronize the various components. The integrated control mechanism simplifies the process of counterweight adjustment and body position fixation, reducing mechanical losses. The combination of mechanical linkage and the controller improves the device's adaptability, operational efficiency, and safety.

[0017] Furthermore, the limiting assembly includes a plurality of fixed blocks fixedly connected to the bottom of the bed board, and the first screw rods are all rotatably matched with the fixed blocks; the sliders are all located in the spacing between adjacent fixed blocks and slide.

[0018] Beneficial Effects: The design of the fixed block and the first screw provides support for the first screw's rotation and limits the slider's movement distance, preventing the risk of the slider slipping out. This structure achieves reliability and long-term durability of the device through the synergy of mechanical limit and dynamic adjustment, while ensuring the safety of the child.

[0019] Furthermore, the clamping assembly includes a moving block and a sliding rod fixedly connected to the outer wall of the slider, and a sliding groove for the sliding rod to move is opened on the bed board; the sliding rod is symmetrically hinged with a clamping arm at one end away from the slider, and the clamping arm is hinged with a hinged rod; the hinged rod is hinged with the moving block at one end away from the clamping arm, and a pull wire is fixedly connected to the moving block; the pull wire is fixedly connected to the limit rod at one end away from the moving block.

[0020] Beneficial effects: The linkage design of the sliding rod, articulated rod and pull wire enables synchronous control of the opening and closing of the clamping arm and the movement of the slider. When the slider adjusts the counterweight, the sliding rod moves along the slide groove, and the articulated rod drives the clamping arm to retract and extend, ensuring that the restraint force of the limbs is uniform and matches the changes in body shape. The connection between the pull wire and the limit rod provides tension for the clamping action, reducing the risk of the clamping arm accidentally loosening due to the child's struggle. This structure utilizes the power source of the existing rotating parts and does not require additional operating steps. It not only improves the restraint efficiency, but also enhances the applicability of the equipment through the mechanical linkage mechanism.

[0021] Furthermore, the fixing assembly includes a rotating rod rotatably connected to the bottom of the bed board, with clamping blocks symmetrically slidingly engaged therewith. A buffer layer is fixedly connected to each clamping block, and a curved rod is hingedly connected to the bottom of each clamping block. The ends of the curved rods, distal from the clamping blocks, are hingedly connected to the outer wall of the rotating rod. A transmission assembly is provided at the bottom of the bed board for driving the rotating rod.

[0022] Beneficial Effects: The transmission assembly drives the rotating rod, which in turn drives the curved rod to push the clamping block symmetrically, achieving uniform distribution and dynamic adjustment of the head clamping force. The symmetrical sliding path of the clamping block ensures balanced pressure on both sides, reducing discomfort caused by unilateral pressure. The buffer layer provides flexible support for the clamping block, reducing localized stress concentration. This structure, through the combination of geometric linkage and flexible contact surfaces, ensures precise fixation while enhancing patient comfort.

[0023] Furthermore, the transmission assembly includes a turntable coaxially fixedly connected to the bottom of the rotating rod, and the middle of the limit rod is fixedly connected to a transmission block; the bottom of the transmission block is hinged with a connecting rod, and the end of the connecting rod away from the transmission block is hinged to the turntable.

[0024] Beneficial Effects: By connecting the limit rod and the transmission block, the transmission block moves synchronously with the movement of the slider, thereby driving the turntable to rotate using the hinged connecting rod. This structure uses a single drive source to synchronously drive the turntable and the rotating rod, further simplifying the operation process. The limit rod and transmission block provide a defined motion trajectory, balancing fixation accuracy and patient safety.

[0025] Furthermore, the embracing assembly includes an embracing arm that rotates symmetrically and slides with the top of the bed board, and the side of the embracing arm close to the bed board is fixedly connected to the airbag; the bottom of the bed board is fixedly connected to the piston cylinder, and the inner wall of the piston cylinder is slidingly fitted with the piston plate; the end of the rotating part away from the first screw rod is coaxially fixedly connected to the second screw rod, and the second screw rod extends to the internal thread of the piston cylinder and is fitted with a nut seat; the nut seat is fixedly connected to the piston plate.

[0026] The side of the piston cylinder away from the nut seat is connected to an input pipe and an output pipe, and the connections between the input pipe and the output pipe and the piston cylinder are connected to a one-way valve; the input pipe is connected to the outside of the piston cylinder, and the end of the output pipe away from the piston cylinder is connected to the inside of the airbag.

[0027] Beneficial Effects: The rotating member drives the second screw to rotate, and the threaded nut seat on the second screw drives the piston plate to reciprocate. Combined with a one-way valve to control the flow of gas, the airbag pressure is dynamically adjusted, allowing the encircling arm to fit the contours of the child's chest. The combination of the encircling arm and the flexible pneumatic adjustment of the airbag not only ensures the stability of chest fixation, but also allows the elastic deformation of the airbag to accommodate respiratory movements, reducing the risk of children with cardiopulmonary insufficiency and improving operational efficiency and safety. The sliding design of the encircling arm can match the chest position of children of different body sizes, further improving the adaptability of the device.

[0028] Furthermore, the outer wall of the airbag is fixedly connected to a pressure sensor, and the airbag is connected to an electromagnetic valve; the controller is used to receive pressure information from the pressure sensor and control the opening and closing of the electromagnetic valve based on the pressure information.

[0029] Beneficial Effects: Utilizing a pressure sensor and solenoid valve linkage control design, the chest restraint force is controlled by real-time monitoring of the airbag contact pressure and dynamic adjustment of the gas volume. The combination of pressure feedback and mechanical linkage achieves a dynamic balance between rigid fixation and flexible adaptation of the encircling arm, accommodating respiratory movement while ensuring surgical stability.

[0030] Furthermore, VR glasses are provided on the bed board, and the controller is used to control the opening and closing of the VR glasses.

[0031] Beneficial Effects: VR glasses provide an immersive virtual experience to distract children, reducing their fear and struggle during surgery. The controller synchronizes VR content and restraint operations, automatically triggering soothing animations or interactive games while the patient is in a fixed position. This visual psychological intervention alleviates the patient's anxiety and reduces the risk of secondary injury caused by resistance.

[0032] Furthermore, the surface of the bed plate is coated with a photocatalytic layer.

[0033] Beneficial effects: The design of the photocatalytic layer generates active oxygen free radicals under the irradiation of the surgical shadowless lamp, achieving continuous antibacterial function and reducing the risk of postoperative infection; at the same time, it can decompose organic pollution, reduce the difficulty of postoperative cleaning, and create a safer sterile environment for pediatric bronchoscopic surgery.

[0034] 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

[0035] Figure 1 This is an axonometric view of the adjustable restraint device of the present invention for pediatric bronchoscopic surgery.

[0036] Figure 2 This is a bottom isometric view of the adjustment assembly of the adjustable restriction device for pediatric bronchoscopic surgery according to the present invention.

[0037] Figure 3 It is a side view of the adjustable restriction device for pediatric bronchoscopic surgery according to the present invention.

[0038] Figure 4 The figure is a cross-sectional view of the piston cylinder of the adjustable restriction device for pediatric bronchoscopic surgery according to the present invention.

[0039] Figure 5 For the present invention Figure 1 Enlarged view of part A.

[0040] Figure 6 For the present invention Figure 2 Magnified view of part B.

[0041] Figure 7 The figure is a bottom view of the rotating rod of the adjustable restriction device for pediatric bronchoscopic surgery according to the present invention.

[0042] The figure marks in the drawings of the specification include: 1. bracket; 2. bed board; 3. first screw; 4. slider; 5. counterweight; 6. limit rod; 7. double-headed motor; 8. fixed block; 9. moving block; 10. sliding rod; 11. clamping arm; 12. hinged rod; 13. rotating rod; 14. clamping block; 15. arc rod; 16. turntable; 17. transmission block; 18. connecting rod; 19. encircling arm; 20. airbag; 21. piston cylinder; 22. piston plate; 23. second screw; 24. nut seat; 25. VR glasses. DETAILED DESCRIPTION

[0043] The following is further described in detail through specific implementation methods:

[0044] Example 1:

[0045] As attached Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The figure shows an adjustable restraint device for pediatric bronchoscopic surgery, comprising a support frame 1, the top of which is bolted to a bed board 2. An adjustment assembly is provided at the bottom of the bed board 2 for adjusting its center of gravity. In this embodiment, a soft layer, made of sponge, is attached to the outer surface of the bed board 2 to further enhance the comfort of the device.

[0046] The adjustment assembly includes a first screw rod 3 and a slider 4 that slides symmetrically on the bottom of the bed board 2. The bottom of the slider 4 is fixedly connected with a counterweight 5 by bolts; the sliders 4 are threadedly engaged with the first screw rod 3, and the thread directions of adjacent sliders 4 are opposite; the sliders 4 are fixedly clamped with a limit rod 6, and the limit rod 6 passes through the slider 4 on the opposite side and slides with the slider 4 on the opposite side.

[0047] A driving assembly for driving the first screw rod 3 to rotate and a limiting assembly for limiting the moving range of the slider 4 are provided at the bottom of the bed board 2 .

[0048] The driving assembly includes a controller and a rotating part. In this embodiment, the rotating part is a double-headed motor 7, and the controller is used to control the double-headed motor 7 to rotate; the double-headed motor 7 is bolted fixedly connected to the bottom of the bed board 2, and the output shaft of the double-headed motor 7 is coaxially fixedly connected to the first screw rod 3.

[0049] Specifically, a double-ended motor 7 drives the first screw 3 to rotate, enabling dynamic adjustment of the counterweight 5 driven by the slider 4 and synchronized movement of all components. This integrated control mechanism simplifies the process of counterweight adjustment and position fixation, reducing mechanical losses. The integration of mechanical linkage and the controller enhances the device's adaptability, operational efficiency, and safety.

[0050] The limiting assembly includes a plurality of fixing blocks 8 fixedly connected to the bottom of the bed plate 2 by bolts, and the first screw rods 3 are all rotatably matched with the fixing blocks 8; the sliders 4 are all located in the spacing between adjacent fixing blocks 8 and slide.

[0051] Specifically, the design of the fixed block 8 and the first screw 3 in rotation provides support for the rotation of the first screw 3 and limits the movement distance of the slider 4 to prevent the risk of the slider 4 slipping out. This structure achieves the reliability and long-term durability of the device by coordinating mechanical limit and dynamic adjustment while ensuring the safety of the child.

[0052] The bed board 2 is equipped with several clamping assemblies for securing the limbs, a fixing assembly for clamping the head, and an encircling assembly for securing the chest. The drive assembly is used to drive the clamping assemblies to secure the limbs, the fixing assembly to clamp the head, and the encircling assembly to secure the chest.

[0053] Combine Figure 5 As shown, the clamping assembly includes a moving block 9 and a sliding rod 10 fixedly connected to the outer wall of the slider 4 with screws, and a sliding groove for the sliding rod 10 to move is opened on the bed board 2; the sliding rod 10 is symmetrically hinged with a clamping arm 11 at one end away from the slider 4, and the clamping arm 11 is hinged with a hinged rod 12; the hinged rod 12 is hinged to the moving block 9 at one end away from the clamping arm 11, and a pull wire is fixedly sleeved on the moving block 9; the end of the pull wire away from the moving block 9 is fixedly sleeved with the limit rod 6.

[0054] Specifically, the opening and closing of the clamping arm 11 and the movement of the slider 4 are synchronously controlled by the linkage design of the sliding rod 10, the articulated rod 12 and the pull wire. When the slider 4 adjusts the counterweight, the sliding rod 10 moves along the slide groove, and the articulated rod 12 drives the clamping arm 11 to retract and extend, ensuring that the restraint force of the limbs is uniform and matches the changes in body shape. The connection between the pull wire and the limit rod 6 provides tension for the clamping action, reducing the risk of the clamping arm 11 accidentally loosening due to the child's struggle. This structure utilizes the power source of the existing double-headed motor 7 and does not require additional operating steps. It not only improves the restraint efficiency, but also enhances the applicability of the equipment through the mechanical linkage mechanism.

[0055] The fixing assembly includes a rotating rod 13 rotatably connected to the bottom of the bed board 2, and a clamping block 14 is symmetrically slidably fitted on the bed board 2; a buffer layer is fixedly bonded to the clamping block 14, and the buffer layer in this embodiment is sponge; an arc rod 15 is hinged to the bottom of the clamping block 14, and the end of the arc rod 15 away from the clamping block 14 is hinged to the outer wall of the rotating rod 13 (such as Figure 6 shown).

[0056] A transmission assembly is provided at the bottom of the bed plate 2 for rotating the rotating rod 13. The transmission assembly includes a turntable 16 coaxially fixed to the bottom of the rotating rod 13. A transmission block 17 is screwed to the middle of each of the limit rods 6. A connecting rod 18 is hinged to the bottom of each of the transmission blocks 17. The end of each of the connecting rods 18, which is away from the transmission block 17, is hinged to the turntable 16.

[0057] Specifically, through the connection between the limit rod 6 and the transmission block 17, the limit rod 6 drives the transmission block 17 to move synchronously when the slider 4 moves, thereby driving the rotation disk 16 through the hinged connecting rod 18. This structure uses a single drive source to synchronously drive the rotation of the rotation disk 16 and the rotating rod 13, further simplifying the operation process. The limit rod 6 and the transmission block 17 provide a defined motion trajectory, ensuring both fixation accuracy and patient safety.

[0058] The turntable 16 drives the rotating rod 13 to rotate, which in turn drives the curved rod 15 to push the clamping block 14 symmetrically, achieving uniform distribution and dynamic adjustment of the head clamping force. The symmetrical sliding path of the clamping block 14 ensures balanced pressure on both sides, reducing discomfort caused by unilateral pressure. The buffer layer provides flexible support for the clamping block 14, reducing localized stress concentration. This structure, through the combination of geometric linkage and flexible contact surface, ensures accurate fixation while enhancing patient comfort.

[0059] The embracing assembly includes an embracing arm 19 that rotates symmetrically and slides against the top of the bed board 2. An airbag 20 is fixedly bonded to the side of the embracing arm 19 near the bed board 2. A piston cylinder 21 is bolted to the bottom of the bed board 2, and a piston plate 22 slides against the inner wall of the piston cylinder 21. The sliding fit between the piston plate 22 and the inner wall of the piston cylinder 21 provides a position limit for the piston plate 22, allowing it to maintain a linear trajectory. A second screw 23 is coaxially fixedly secured to the end of the double-headed motor 7 away from the first screw 3. The second screw 23 extends into the interior of the piston cylinder 21 and is threadedly engaged with a nut seat 24. The nut seat 24 is fixedly bonded to the piston plate 22.

[0060] The side of the piston cylinder 21 away from the nut seat 24 is connected to an input tube and an output tube. Check valves are installed at the junctions of the input and output tubes with the piston cylinder 21. These check valves guide the flow of media in one direction, allowing the media to flow in through the input tube and out through the output tube. The input tube is connected to the exterior of the piston cylinder 21, while the end of the output tube away from the piston cylinder 21 is connected to the interior of the airbag 20.

[0061] Specifically, the second screw 23 is driven to rotate by the double-headed motor 7, and the nut seat 24 threadedly engaged with the second screw 23 drives the piston plate 22 to reciprocate. Combined with the one-way valve to control the flow of gas, the dynamic adjustment of the pressure of the airbag 20 is achieved, so that the encircling arm 19 fits the chest contour of the child. The combination of the encircling arm 19 and the flexible pneumatic adjustment of the airbag 20 not only ensures the stability of chest fixation, but also accommodates respiratory movement through the elastic deformation of the airbag 20, reducing the risk of children with cardiopulmonary insufficiency and improving operational efficiency and safety. The sliding design of the encircling arm 19 can match the chest position of children of different body sizes, further improving the adaptability of the device.

[0062] The specific implementation process is as follows:

[0063] Before performing a bronchoscopic procedure, the child lies supine on the bed 2. The double-headed motor 7 drives the first screw 3 to rotate. Because the sliders 4 are threaded with the first screw 3, and the threads of adjacent sliders 4 are in opposite directions, the rotation of the first screw 3 can synchronously drive the sliders 4 to move, causing the two sliders 4 to slide symmetrically along the first screw 3 (moving closer to or away from each other), thereby adjusting the spacing between the counterweights 5 to accommodate the weight adjustment needs of children of different body lengths. During the movement of the sliders 4, the limit rods 6 provide a limit, ensuring that the sliders 4 maintain a linear motion trajectory.

[0064] When the sliders 4 move toward each other, the sliding rod 10 is driven to move along the sliding groove of the bed plate 2, and the limit rod 6 slides out of the outside of the opposite slider 4, so that the pull wire fixed on the limit rod 6 generates tension. In this embodiment, the end of the pull wire away from the moving block 9 is fixedly connected to the end of the limit rod 6 that passes through the opposite slider 4 and slides with the symmetrical slider 4, so that one end of the limit rod 6 can generate tension on the pull wire. Figure 2 For example, when the sliders 4 on both sides move closer to each other, the right end of the outer limiting rod 6 slides out of the right slider 4, so that the pull wire fixedly sleeved on the right end of the limiting rod 6 can generate tension, thereby using the pull wire to pull the moving block 9 so that the hinged rod 12 can pull the clamping arm 11 for clamping, and then the clamping arm 11 can be used to fix the child's limbs.

[0065] When the slider 4 moves in the opposite direction, the pull wire is reset and the pulling force on the moving block 9 is cancelled, so that the hinge point between the clamping arm 11 and the sliding rod 10 is in an active state, thereby releasing the clamping force of the clamping arm 11; this movement process is adapted to the body shape of the child. The smaller the child's body shape, the larger the fixed clamping force is, so as to adapt to children of different body shapes and improve the stability of the device clamping. The clamping arm 11 is driven to open and close by the hinge rod 12, and the connection between the pull wire and the limit rod 6 provides tension for the clamping arm 11, which adapts to the thickness of the child's limbs and evenly applies the restraining force. In this embodiment, the contact surface between the clamping arm 11 and the limb is made of a flexible material, preferably rubber.

[0066] Furthermore, when the sliders 4 move away from or toward each other, the transmission block 17 fixedly connected to the limit rod 6 by screws moves synchronously, so that the movement directions of the transmission block 17 and the slider 4 are opposite, and the turntable 16 is driven to rotate by the connecting rod 18. When the turntable 16 rotates, the rotating rod 13 rotates in conjunction with the rotation. The rotating rod 13 drives the arc rod 15 to push the clamping block 14 to slide symmetrically, and the buffer layer fits the contour of the child's head, and the pressure on both sides is dynamically balanced to avoid unilateral compression. Figure 2 For example, when the transmission block 17 on the outside moves to the left, the transmission block 17 on the inside moves to the right, and the connecting rod 18 can push the turntable 16 to rotate counterclockwise; the turntable 16 synchronously drives the rotating rod 13 to rotate counterclockwise. Figure 7 For example, when the rotating rod 13 rotates counterclockwise, the arc rod 15 hinged to the outer wall of the rotating rod 13 can rotate counterclockwise around the rotating rod 13, so that the arc rod 15 away from the end of the rotating rod 13 moves closer to each other, and when they move closer to each other, they pull the clamping block 14 above them to move closer to the middle, so that the head is fixed by the buffer layer on the clamping block 14.

[0067] During the immobilization process, the dual-headed motor 7 synchronously rotates the second screw 23, which in turn drives the nut holder 24 to generate linear motion. This movement of the nut holder 24 drives the piston plate 22 to reciprocate within the piston cylinder 21. The reciprocating motion of the piston plate 22 generates suction and thrust. Suction is generated by drawing in external air through the inlet tube, and thrust is then used to unidirectionally inflate the airbag 20 through the outlet tube, allowing the embracing arms 19 to flexibly wrap around the chest. The dual-headed motor 7, acting as a single power source, mechanically synchronizes and simultaneously completes counterweight adjustment, limb clamping, head fixation, and chest embracing, reducing manual intervention.

[0068] Example 2:

[0069] The difference from the above embodiment is that a pressure sensor is fixedly bonded to the outer wall of the airbag 20, and an electromagnetic valve is connected to the airbag 20; the controller is used to receive pressure information from the pressure sensor and control the opening and closing of the electromagnetic valve based on the pressure information.

[0070] The specific implementation process is as follows: Utilizing a pressure sensor and solenoid valve linkage control design, the chest restraint force is controlled by real-time monitoring of the airbag 20 contact pressure and dynamic adjustment of the gas volume. The combination of pressure feedback and mechanical linkage achieves a dynamic balance between rigid fixation and flexible adaptation of the encircling arm 19, accommodating respiratory movement while ensuring surgical stability.

[0071] Example 3:

[0072] As attached Figure 1 As shown, the difference from the above embodiment is that VR glasses 25 are further provided on the bed board 2, and the controller is used to control the opening and closing of the VR glasses 25.

[0073] The specific implementation process is as follows: VR glasses25 provide an immersive virtual scene experience to distract the child, thereby reducing fear and struggle during surgery. The controller synchronizes the VR content and restraint operation, automatically triggering soothing animations or interactive games when the patient is in a fixed position. This visual psychological intervention alleviates the child's tension and reduces the risk of secondary injury caused by resistance.

[0074] Example 4:

[0075] The difference from the above embodiment is that the surface of the bed plate 2 is coated with a photocatalytic layer; in this embodiment, the photocatalytic layer is titanium dioxide TiO2.

[0076] The specific implementation process is as follows: Utilizing the design of the photocatalytic layer, active oxygen free radicals are generated under the irradiation of the surgical shadowless lamp, achieving continuous antibacterial function and reducing the risk of postoperative infection; at the same time, it can decompose organic pollution, reduce the difficulty of postoperative cleaning, and create a safer sterile environment for pediatric bronchoscopic surgery.

[0077] 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 adjustable restraint device for pediatric bronchoscopic surgery, comprising a bracket (1), the top of which is fixedly connected to a bed board (2), characterized in that: An adjustment component for adjusting the center of gravity of the bed board (2) is provided at the bottom of the bed board (2); The adjustment assembly comprises a first screw rod (3) and a slider (4) symmetrically slidingly engaged with the bottom of the bed plate (2), and a counterweight (5) is fixedly connected to the bottom of each slider (4); each slider (4) is threadedly engaged with the first screw rod (3), and the thread directions of adjacent sliders (4) are opposite; each slider (4) is fixedly connected with a limiting rod (6), and the limiting rod (6) passes through the slider 4 on the opposite side and is slidingly engaged with the slider (4) on the opposite side; A driving assembly for driving the first screw rod (3) to rotate and a limiting assembly for limiting the moving range of the slider (4) are provided at the bottom of the bed plate (2); The bed board (2) is provided with a plurality of clamping components for fixing limbs, a fixing component for clamping the head, and an embracing component for fixing the chest; The driving assembly is used to drive the clamping assembly to fix the limbs, drive the fixing assembly to clamp the head, and drive the embracing assembly to fix the chest.

2. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 1, characterized in that: The driving assembly comprises a controller and a rotating member, wherein the controller is used to control the rotating member to rotate; the rotating member is fixedly connected to the bottom of the bed board (2), and the output shaft of the rotating member is coaxially fixedly connected to the first screw rod (3).

3. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 2, characterized in that: The limiting assembly comprises a plurality of fixed blocks (8) fixedly connected to the bottom of the bed board (2); the first screw rods (3) are all rotatably matched with the fixed blocks (8); and the sliders (4) are all located in the spacing between adjacent fixed blocks (8) and slide.

4. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 3, characterized in that: The clamping assembly comprises a moving block (9) and a sliding rod (10) fixedly connected to the outer wall of the slider (4); a sliding groove for the sliding rod (10) to move is provided on the bed plate (2); a clamping arm (11) is symmetrically hinged at one end of the sliding rod (10) away from the slider (4); a hinged rod (12) is hinged on each of the clamping arms (11); an end of the hinged rod (12) away from the clamping arm (11) is hinged to the moving block (9), and a pull wire is fixedly connected to the moving block (9); an end of the pull wire away from the moving block (9) is fixedly connected to the limit rod (6).

5. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 4, characterized in that: The fixing assembly comprises a rotating rod (13) rotatably connected to the bottom of the bed board (2); a clamping block (14) is symmetrically slidably fitted on the bed board (2); a buffer layer is fixedly connected to the clamping block (14); an arc rod (15) is hingedly connected to the bottom of the clamping block (14); and one end of the arc rod (15) away from the clamping block (14) is hingedly connected to the outer wall of the rotating rod (13); A transmission assembly for driving the rotating rod (13) to rotate is provided at the bottom of the bed board (2).

6. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 5, characterized in that: The transmission assembly comprises a turntable (16) coaxially fixedly connected to the bottom of the rotating rod (13); the middle of the limiting rod (6) is fixedly connected to a transmission block (17); the bottom of the transmission block (17) is hinged with a connecting rod (18); and one end of the connecting rod (18) away from the transmission block (17) is hinged to the turntable (16).

7. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 6, characterized in that: The embracing assembly comprises an embracing arm (19) which rotates symmetrically and slides on the top of the bed board (2), and an air bag (20) is fixedly connected to one side of the embracing arm (19) close to the bed board (2); a piston cylinder (21) is fixedly connected to the bottom of the bed board (2), and a piston plate (22) is slidably fitted on the inner wall of the piston cylinder (21); an end of the rotating member away from the first screw rod (3) is coaxially fixedly connected to a second screw rod (23), and the second screw rod (23) extends to the inner thread of the piston cylinder (21) and is fitted with a nut seat (24); the nut seat (24) is fixedly connected to the piston plate (22); The side of the piston cylinder (21) away from the nut seat (24) is connected to an input pipe and an output pipe, and the connection points of the input pipe and the output pipe with the piston cylinder (21) are both connected to a one-way valve; the input pipe is connected to the outside of the piston cylinder (21), and the end of the output pipe away from the piston cylinder (21) is connected to the inside of the airbag (20).

8. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 7, characterized in that: The outer wall of the airbag (20) is fixedly connected with a pressure sensor, and the airbag (20) is connected with a solenoid valve; the controller is used to receive pressure information from the pressure sensor and control the opening and closing of the solenoid valve based on the pressure information.

9. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 8, characterized in that: VR glasses (25) are also provided on the bed board (2), and the controller is used to control the opening and closing of the VR glasses (25).

10. The adjustable restraint device for pediatric bronchoscopic surgery according to claim 9, characterized in that: The surface of the bed plate (2) is coated with a photocatalytic layer.

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