Spinal fracture postoperative rehabilitation supporting appliance and use method
By designing a stable connection structure between the front and rear plates and an airbag system, the problems of easy misalignment and comfort of external fixators were solved, achieving stable fixation and rehabilitation training after spinal fracture surgery and promoting early recovery of patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI KONGJIANG HOSPITAL
- Filing Date
- 2026-02-06
- Publication Date
- 2026-04-10
AI Technical Summary
The external fixators currently used after spinal fracture surgery are prone to misalignment between fixation plates and cause skin friction after prolonged use, affecting the fixation effect and comfort.
The main support structure consists of a front and rear protective plate, with an inner pad to buffer pressure. A stable connection is achieved through the sliding cooperation of the plug-in plate and the auxiliary frame. The airbag system provides therapeutic pressure, and combined with the adjustable device and training device, it can achieve adjustable fixation and rehabilitation training.
It improves the stability and comfort of the fixation device, promotes the recovery of spinal function in patients, and achieves the synergistic effect of therapeutic compression and breathing training through the directional flow of the airbag system.
Smart Images
Figure CN121818205A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to rehabilitation support devices and methods of use after spinal fracture surgery. Background Technology
[0002] Postoperative bracing is necessary for spinal trauma patients to stabilize the spine and facilitate early weight-bearing and mobilization, promoting rapid postoperative recovery. Currently, external fixators are typically used to immobilize and protect the body, preventing excessive movement that could hinder postoperative recovery.
[0003] Existing external fixators consist of fixation plates and straps. The straps fix two free fixation plates to the patient's body. Since the two fixation plates are completely connected by the straps, and the straps have a certain degree of freedom and elasticity, misalignment can easily occur between the upper and lower fixation plates, affecting the fixation effect of the fixator. In order to ensure the fixation effect, the fixation plates need to be in close contact with the user's body. Prolonged use can easily cause friction to the patient's skin, leading to injury and low comfort. Summary of the Invention
[0004] To address the issue of misalignment between fixation plates, which can affect fixation effectiveness, this application provides a rehabilitation support device and its usage method after spinal fracture surgery.
[0005] The technical solution for the spinal fracture postoperative rehabilitation support device and its usage method provided in this application is as follows: Postoperative rehabilitation support device for spinal fracture and its usage method, including a front guard plate and a rear guard plate. Pads are provided on opposite sides of both the front and rear guard plates. A protective frame 1 is symmetrically arranged on one side of the front guard plate, and a protective frame 2 is symmetrically arranged on one side of the rear guard plate. A plug-in plate 1 for stable connection to the front guard plate is provided inside the first protective frame, and a plug-in plate 2 for stable connection to the rear guard plate is provided inside the second protective frame. An auxiliary frame is provided on one side of the second plug-in plate, and a connecting plate 1 that slides inside the auxiliary frame is provided on one side of the first plug-in plate. The connecting plate 1 and the auxiliary frame are used to achieve a stable connection between the front and rear guard plates. An adjustment device for adjusting the distance between the front and rear protective plates is provided between the connecting plate 1 and the auxiliary frame. An airbag 2 for gently pressing the patient is provided inside the front protective plate. An airbag 1 for gently pressing the patient is provided inside the rear protective plate. A connecting tube 1 is provided on one side of the airbag 1 and airbag 2, and a connecting tube 2 is provided on the other side of the airbag 1 and airbag 2.
[0006] By adopting the above technical solution, the front and rear protective plates form the main support structure. The pads on the inner side directly contact the patient's body, mainly serving to buffer pressure and improve comfort. The protective frame one on the front protective plate and the protective frame two on the rear protective plate provide the installation foundation and guide for the entire connection system. The plug-in plate one and plug-in plate two are respectively inserted into the corresponding protective frames, and through the sliding cooperation between the auxiliary frame and the connecting plate one, a stable and adjustable main connection between the front and rear protective plates is achieved. The airbag one and airbag two integrated inside the protective plates are interconnected through the connecting pipe one and connecting pipe two, forming a closed-loop gas circulation system. Its core function is to achieve the directional flow of gas between the two airbags during the patient's breathing or training, thereby producing a therapeutic compression effect.
[0007] Preferably, the adjusting device includes a plurality of protrusions disposed inside the auxiliary frame. A movable frame is disposed inside the auxiliary frame. The movable frame is fixed on the side of the connecting plate away from the plug-in plate. A movable plate is disposed inside the movable frame. A pressing post is slidably connected to the inside of the auxiliary frame on one side of the movable plate. A connecting device that can be engaged between adjacent protrusions is disposed on one side of the movable plate. A reset device for driving the movable plate to reset is disposed on the side of the movable plate away from the pressing post.
[0008] By adopting the above technical solution, several protrusions fixed to the inner wall of the auxiliary frame serve as a set of equidistant positioning positions. The moving frame is an extension of the connecting plate, and the moving plate inside it is the driving core. By pressing the exposed pressing column, the user can directly drive the moving plate and the entire connecting device to move. The connecting device is responsible for engaging and releasing with the protrusions, which is the key to the locking function. The reset device provides the driving force for automatic reset of the moving plate and the connecting device after each operation, ensuring that the mechanism can work cyclically.
[0009] Preferably, the connecting device includes a movable column fixed to the top surface of the movable plate, a cylinder slidably connected to the outer surface of the movable column, a return spring between the movable column and the cylinder, a wedge block on the top surface of the cylinder, and a snap-fit block that engages with adjacent protrusions on one side of the wedge block.
[0010] By adopting the above technical solution, the sliding of the moving column one inside the cylinder one, in conjunction with the return spring one, provides elastic pre-tightening force for the locking component. The wedge block above the cylinder one and the locking block on its side are components that directly interact with the protrusion. In the non-pressed state, the elastic force of the return spring one pushes the entire device upward, causing the locking block to embed into the gap between adjacent protrusions, thereby achieving mechanical self-locking and firmly fixing the position of the moving frame and the front guard plate.
[0011] Preferably, the reset device includes a cylindrical second fixedly disposed inside the movable frame, a movable column second slidably disposed inside the cylindrical second, one side of the movable column second being fixedly disposed on the side of the movable plate away from the pressing column, and a reset spring second being disposed between the movable column second and the cylindrical second.
[0012] By adopting the above technical solution, the reset device is the power recovery unit of the adjustment device. When the user presses the pressing column, the moving plate will compress the reset spring 2. After the user releases the pressing column, the elastic potential energy stored in the reset spring 2 is converted into power, which pushes the moving column 2 and the moving plate connected to it to reset as a whole, ensuring that the wedge block and the locking block can reliably rebound and engage with the protrusion to complete the locking.
[0013] Preferably, the rear guard plate has an internal cavity, a protective frame 1 for protecting the internal structure of the cavity is provided on the side of the rear guard plate, a protective frame 2 is provided on the outer surface of the protective frame 1, and a training device for assisting patient rehabilitation is provided inside the cavity.
[0014] By adopting the above technical solution, the cavity provides a concealed and safe housing space for the entire training mechanism. The protective frame one fixed to the outside of the cavity and the sliding protective frame two together form a protective shell. Its core function is to effectively prevent dust, clothing from getting caught in or the human body from accidentally touching the internal precision mechanism while allowing the training components (such as the pull rope) to move normally, thus ensuring the safety and reliability of use.
[0015] Preferably, the training device includes several base plates slidably disposed inside a cavity. Sliding plates are symmetrically arranged inside the cavity. A tension spring and a telescopic rod are disposed between the top surface of the base plate and the cavity. A plug-in ring is disposed at the bottom of the base plate. A snap-fit post that is compatible with the plug-in ring is slidably connected through the interior of the sliding plate. The snap-fit post is slidably connected inside the first protective frame. A pull rope that is slidably connected inside the rear guard plate is disposed on the bottom surface of the sliding plate. A pull ring is disposed on the side of the pull rope away from the sliding plate.
[0016] By adopting the above technical solution, the training device is a functional module that provides patients with controllable resistance training. Its core power comes from the tension springs (with telescopic rods for guidance) installed on the top of multiple base plates, which provide adjustable resistance for the patient's movements. The sliding plate acts as the transmission hub, and multiple independent base plate units are connected in series into a synchronously moving whole through multiple locking pins that can be inserted into the bottom connecting rings of the base plates. By pulling the pull rings, the patient can overcome the resistance of the tension springs on all the connected base plates through the pull ropes pulling the sliding plate, thereby exercising the back and core muscle groups. The training intensity can be adjusted by connecting different numbers of base plates (i.e., tension springs).
[0017] Preferably, the cavity is provided with an auxiliary device for gently pressing the patient. The auxiliary device includes an air injection tube fixed inside the rear guard plate, one end of which is fixedly connected to and communicates with an air bag. A piston rod that is slidably connected inside the air injection tube is fixedly provided on the bottom surface of the sliding plate.
[0018] By adopting the above technical solution, the auxiliary device is the key pneumatic module for achieving synergistic amplification of "training-massage". Its core is a miniature manual air pump consisting of an air injection tube and a piston rod. When the patient performs stretching exercises, the movement of the sliding plate will drive the piston rod to reciprocate within the air injection tube. This function is like an air pump, directly pumping additional gas into the air bladder located on the back. Its main function is to assist in increasing the inflation pressure of the back air bladder when the patient's breathing force is weak, ensuring the massage intensity. At the same time, it mechanically couples the patient's active training movements with the air bladder compression effect, enhancing the synergy of rehabilitation.
[0019] Preferably, the first airbag is located in the intercostal region of the patient's back, and the second airbag is located on both sides of the patient's chest.
[0020] By adopting the above technical solution, the first airbag is located in the intercostal region of the patient's back, which aims to relax and stimulate the core muscle groups and intercostal muscles next to the spine. The second airbag is located on both sides of the patient's chest, which is to make full use of the natural lateral expansion and contraction of the chest during breathing and efficiently convert it into a power source to drive the flow of gas. This specific layout is the basis for realizing the core functional concept of "breath-driven targeted massage".
[0021] Preferably, there is a gap between the protrusion and the inner wall of the auxiliary frame, and the gap is the same size as the snap-fit block.
[0022] By adopting the above technical solution, a precise "slot" is provided for the insertion of the locking block. During the locking process, the locking block is inserted into this gap under the action of spring force, realizing rigid locking of surface contact rather than point contact, thereby greatly improving the stability and reliability of locking and preventing accidental disengagement under force. At the same time, the consistent size also ensures that the locking block can slide smoothly on the inclined surface of the protrusion during adjustment, improving the operating feel.
[0023] Preferably, the method of using a rehabilitation support device after spinal fracture surgery includes the following steps: S1: Insert the second plug-in plate into the inside of the second protective frame and fix it inside the second protective frame. Then, place the rear protective plate on the patient's back so that the pad is in contact with the patient's body, and place the front protective plate in front of the patient so that the pad is in contact with the patient's body. S2: Insert the plug plate into the inside of the protective frame and fix it inside the protective frame to complete the connection between the front and rear protective plates. According to the actual situation of the patient's spine, slide the wedge block between the protrusions. After adjusting to the appropriate position, snap the snap block between two adjacent protrusions to fix the moving frame, thereby determining the position of the front and rear protective plates. S3: When the patient is able to perform rehabilitation training, pull the ring by hand. The ring moves the sliding plate, locking post, tension spring, and telescopic rod together through the pull rope. In this way, the elastic force of the tension spring is used for training. S4: While performing stretching exercises, the patient takes deep breaths, which squeezes the second airbag. Gas enters the first airbag through the connecting tube and gently presses the intercostal area of the patient's back. At the same time, the pull rope at the bottom of the sliding plate pushes the gas in the piston rod into the first airbag during the sliding process. After the training is completed, the gas in the first airbag is discharged into the second airbag through the connecting tube, realizing gas recycling.
[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By utilizing the detachable plug-in plates 1 and 2 inside the protective frame on the back of the front and rear guard plates, as well as the auxiliary frame and movable frame on the rear guard plate, the connection position and angle between the front and rear guard plates can be flexibly adjusted to adapt to the degree of spinal curvature and rehabilitation needs of different patients. At the same time, the snap-fit design of the snap-fit block and the protrusion can ensure stable fixation after adjustment, providing reliable support for the patient.
[0025] 2. With the help of the sliding plate, base plate, snap-fit post, pull rope and other structures inside the rear guard plate, in conjunction with the tension spring and telescopic rod, the patient can stretch the pull rope to drive the movement of related structures after wearing the support device, and use the elasticity of the tension spring to carry out rehabilitation training, which helps to strengthen the patient's back muscle strength and promote the recovery of spinal function.
[0026] 3. Airbag 1 and Airbag 2 are located in the intercostal region of the patient's back and on both sides of the thorax, respectively, and are connected by connecting tube 1 and connecting tube 2. When the patient is stretching, he / she takes deep breaths at the same time. The expansion of the thorax compresses Airbag 2, and the air is squeezed into Airbag 1 to gently press on the intercostal region of the back. At the same time, the piston rod squeezes the air in the inflation tube into Airbag 1 to prevent insufficient inflation. Afterward, the air can be circulated back to Airbag 2, realizing the synergistic effect of breathing training and back compression, and promoting the full recovery of the patient's physical functions. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the overall structure of this application from another angle; Figure 3 This is a schematic diagram of the connection structure between airbags one and two in this application; Figure 4 This is a schematic diagram of the connection relationship between the first and second plug-in boards in this application; Figure 5 This is a schematic diagram of the internal structure of the auxiliary plate in this application; Figure 6 This is a schematic diagram of the moving frame connection structure in this application; Figure 7 For the purposes of this application Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a schematic diagram of the connection structure of the mobile board in this application; Figure 9 For the purposes of this application Figure 8 Enlarged schematic diagram of the structure at point B; Figure 10 This is a schematic diagram of the internal structure of the cavity in this application; Figure 11 For the purposes of this application Figure 10 Enlarged schematic diagram of the structure at point C.
[0028] Reference numerals: 1. Front guard plate; 2. Rear guard plate; 3. Pad plate; 4. Protective frame one; 41. Protective frame two; 5. Connecting plate one; 51. Connecting plate one; 52. Connecting plate two; 53. Auxiliary frame; 6. Adjustment device; 61. Protrusion; 62. Moving frame; 63. Moving plate; 64. Moving column one; 65. Cylinder one; 66. Return spring one; 67. Wedge block; 68. Locking block; 69. Pressing column; 610. Moving column two; 611. Cylinder two; 612. Return spring two; 7. Cavity; 71. Protective Frame 1; 72. Protective Frame 2; 73. Tension Spring; 74. Telescopic Rod; 75. Base Plate; 76. Insert Ring; 77. Snap-fit Column; 78. Pull rope; 79. Piston rod; 710. Air injection pipe; 711. Pull ring; 712. Sliding plate; 8. Airbag 1; 81. Airbag 2; 82. Connecting tube 1; 83. Connecting tube 2. Detailed Implementation
[0029] The following is in conjunction with the appendix Figures 1-11 This application will be described in further detail.
[0030] This application discloses a rehabilitation support device and its usage method after spinal fracture surgery.
[0031] Example 1 Reference Figure 1 , Figure 2The postoperative rehabilitation support device for spinal fracture includes a front support plate 1 and a rear support plate 2. Both the front and rear support plates 1 and 2 are connected to pads 3 via Velcro. The front support plate 1 extends from below the anterior superior iliac spine to above the armpit (2-3 cm), effectively limiting the patient's bending. A protective frame 4 is symmetrically fixed to the side of the front support plate 1 away from the pads 3, with a hand-tightening bolt threaded inside. Similarly, a second protective frame 41 is symmetrically fixed to the side of the rear support plate 2 away from the pads 3, also with a hand-tightening bolt threaded inside. The inner wall of the protective frame 41 is slidably connected to a plug-in plate 5, which is used to stably connect the front protective plate 1. The inner wall of the protective frame 41 is slidably connected to a plug-in plate 52, which is used to stably connect the rear protective plate 2. An auxiliary frame 53 is fixedly connected to the side of the plug-in plate 52 away from the protective frame 41. A connecting plate 51 is fixedly connected to the side of the plug-in plate 5 away from the protective frame 4. The connecting plate 51 is slidably connected to the inner wall of the auxiliary frame 53. The connecting plate 51 and the auxiliary frame 53 are used to achieve a stable connection between the front protective plate 1 and the rear protective plate 2. An airbag 2 81 is fixedly connected inside the front guard plate 1. The airbag 2 81 is located on both sides of the patient's chest and is used for gentle pressure. An airbag 1 8 is fixedly connected inside the rear guard plate 2. The airbag 1 8 is used for gentle pressure on the patient and is located in the intercostal area of the patient's back. One side of the airbag 1 8 and the airbag 2 81 are fixedly connected by threads and connected by a connecting tube 1 82. The other side of the airbag 1 8 and the airbag 2 81 is connected by a connecting tube 2 83.
[0032] First, the patient places the rear protective plate 2 on their back and the front protective plate 1 on their chest and abdomen, ensuring the pad 3 fits comfortably against their body. Next, align the two insert plates 5 on both sides of the front protective plate 1 and insert them into the protective frame 4. Insert the second insert plate 52 into the protective frame 41. Then, manually rotate the bolts and screw them into the protective frames 4 and 41 respectively, tightening the insert plates 5 and 52. This initially completes the mechanical connection between the front protective plate 1 and the rear protective plate 2. At this point, the device can be worn. The first airbag 8 and the second airbag 81 are located in the intercostal area on the patient's back and on both sides of the chest, respectively. Gently press on the corresponding areas of the patient. The connecting tubes 82 and 83 are used for air circulation between the airbags.
[0033] Reference Figures 4-9An adjustment device 6 is provided between the connecting plate 51 and the auxiliary frame 53. The adjustment device 6 is used to adjust the distance between the front guard plate 1 and the rear guard plate 2. The adjustment device 6 includes several protrusions 61. The several protrusions 61 are fixedly connected to the center of the top of the inner wall of the auxiliary frame 53, and the several protrusions 61 are arranged in a linear array. A movable frame 62 is slidably connected to the bottom of the inner wall of the auxiliary frame 53. The movable frame 62 is fixedly connected to the end of the connecting plate 51 away from the plug-in plate 5. A movable plate 63 is slidably connected to the middle of the inner wall of the movable frame 62. A pressing post 69 is fixedly connected to the side of the movable plate 63. The pressing post 69 is slidably connected inside the auxiliary frame 53. A connecting device is provided on one side of the movable plate 63. The connecting device can be snapped between adjacent protrusions 61. A reset device is provided on the side of the movable plate 63 away from the pressing post 69. The reset device is used to drive the movable plate 63 to reset. The connecting device includes a movable column 64, which is fixedly connected to the center of the top surface of the movable plate 63. A cylinder 65 is slidably connected to the outer surface of the movable column 64. A return spring 66 is fixedly connected to the top surface of the movable column 64. The end of the return spring 66 away from the movable column 64 is fixedly connected to the bottom surface of the inner wall of the cylinder 65. A wedge block 67 is fixedly connected to the top surface of the cylinder 65. A snap-fit block 68 is fixedly connected to the side of the wedge block 67 near the protrusion 61, and the snap-fit block 68 snaps between adjacent protrusions 61. In addition, there is a gap between the protrusion 61 and the inner wall of the auxiliary frame 53, and the gap is the same size as the snap-fit block 68. The reset device includes a second cylinder 611, which is fixedly connected to the inner wall of the movable frame 62. A second movable column 610 is slidably connected to the inner wall of the second cylinder 611. The side of the second movable column 610 away from the second cylinder 611 is fixedly connected to the side of the movable plate 63 away from the pressing column 69. A second reset spring 612 is fixedly connected to the side of the second movable column 610 close to the second cylinder 611, and the side of the second reset spring 612 away from the second movable column 610 is fixedly connected to the inner wall of the second cylinder 611.
[0034] When the distance between the front guard plate 1 and the rear guard plate 2 needs to be adjusted, the operator presses the pressing column 69. The pressing column 69 moves the moving plate 63, which in turn moves the moving column 610. The moving column 610 slides within the cylinder 611 and compresses the return spring 612. Simultaneously, the wedge block 67 and the locking block 68 move, causing the locking block 68 to disengage from between adjacent protrusions 61. At this time, the connecting plate 51 can be moved to change the distance between the front and rear guard plates. The inclined surface of the wedge block 67 abuts against the edge of the protrusion 61, thereby pushing the wedge block 67 to move downward. The movement of the wedge block 67 causes the cylinder 65 to move downward as well, thereby squeezing the reset spring 66, so that the wedge block 67 disengages from the protrusions 61. After adjusting to the appropriate position, the pressing post 69 is released, and the reset spring 612 pushes the moving post 610, the wedge block 67, and the locking block 68 to move, so that the locking block 68 is locked between the adjacent protrusions 61 to achieve positioning.
[0035] Reference Figure 3 , Figures 10-11 A cavity 7 is provided on the upper part of the side of the rear guard plate 2 away from the pad plate 3. A protective frame 71 is fixedly connected to the side of the rear guard plate 2 away from the pad plate 3. The protective frame 71 is used to protect the internal structure of the cavity 7. A protective frame 72 is slidably connected to the outer surface of the protective frame 71. A training device is provided inside the cavity 7. The training device is used to assist the patient's rehabilitation. The training device includes several base plates 75, which are slidably connected inside a cavity 7. Sliding plates 712 are symmetrically slidably connected to the inner wall of the cavity 7. The sliding plates 712 are located on the bottom surface of the base plates 75 and are L-shaped. A tension spring 73 and the moving end of a telescopic rod 74 are fixedly connected to the center of the top surface of the base plate 75. The fixed ends of the tension spring 73 and the telescopic rod 74 are fixedly connected to the top surface of the inner wall of the cavity 7, and the telescopic rod 74 is located inside the tension spring 73. A plug-in ring 76 is fixedly connected to the bottom of the base plate 75. A locking post 77 is slidably connected through the inside of the sliding plate 712. The locking post 77 is plugged into and matched with the plug-in ring 76, and the locking post 77 is slidably connected inside the protective frame 71. A pull rope 78 is fixedly connected to the bottom surface of the sliding plate 712. The pull rope 78 is slidably connected inside the rear guard plate 2. A pull ring 711 is fixedly connected to the side of the pull rope 78 away from the sliding plate 712. An auxiliary device is provided inside the cavity 7 for gently pressing the patient. The auxiliary device includes an air injection tube 710, which is fixedly connected to the inside of the rear protective plate 2. One end of the air injection tube 710 is fixedly connected to and communicates with the air bag 8. A piston rod 79 is fixedly connected to the bottom surface of the sliding plate 712 and is slidably connected inside the air injection tube 710.
[0036] When performing rehabilitation training, patients can sit or stand, and hold the pull ring 711 extending from below the rear guard plate 2 with one or both hands. They should slowly and forcefully stretch the pull rope 78 along the side or back of their body. After the pull rope 78 is stressed, it will drive the sliding plate 712 to move in the direction of the pull rope 78 within the cavity 7. The sliding plate 712, through multiple locking posts 77, will drive all the connected plug rings 76 and base plates 75 to move synchronously, thereby stretching the tension springs 73 at the top of each base plate 75, providing uniform resistance to the patient. The patient should keep the movement slow, and after feeling the back muscles exert force, hold for a few seconds before slowly relaxing. The tension springs 73 will return the base plates 75 and sliding plates 712 to their original positions. This process can be repeated, and the training intensity can be adjusted by selecting different numbers of tension springs 73. When the patient performs stretching exercises, they should simultaneously take deep breaths: Inhalation phase: The patient's chest expands, squeezing the second air bladder 81 located on both sides of the chest, causing the gas inside to be forced into the first air bladder 8 located in the intercostal space of the back through the connecting tube 82, causing the first air bladder 8 to inflate and produce the first compression on the back. At the same time, the action of pulling the pull ring 711 is pumping additional gas into the inflation tube 710 through the piston rod 79. This gas also enters the first air bladder 8, enhancing and ensuring the force of the compression. During the exhalation phase: the patient's chest recoils, the shape of the second air sac 81 returns to normal, generating negative pressure. At the same time, the back muscles relax, and the gas in the first air sac 8 flows back to the second air sac 81 through the connecting tube 2 83 under the action of pressure difference. The pressure sensation on the back is relieved. This cycle is repeated, achieving physiological and mechanical synchronization of "inhalation-training force-back pressure" and "exhalation-relaxation-pressure release".
[0037] Among them, the front guard plate 1 and the rear guard plate 2 are made of medical-grade polycarbonate (PC) or glass fiber reinforced nylon, which have high rigidity, lightweight and impact resistance, can provide stable external support, effectively restrict spinal movement, and are easy to shape. It is also necessary to ensure that the material is non-toxic and has smooth and rounded edges to avoid skin injury. The pad 3 is made of medical-grade polyurethane (TPU) material, which is flexible, highly elastic, fatigue-resistant, and biocompatible, and can withstand repeated inflation and deflation cycles caused by breathing and training. Connecting tube 1 82, connecting tube 2 83, and air injection tube 710 are all made of medical-grade soft polyvinyl chloride (PVC) or silicone tubing, which is soft, non-toxic, and resistant to bending. The tube wall has a certain thickness to prevent kinking. The connection with airbag 1 8 and airbag 2 81 needs to be reinforced and sealed with medical adhesive. The pull rope 78 is made of high-strength nylon or polyethylene rope, and is wear-resistant, high-strength, and has a smooth surface. The rope end should be firmly sealed to prevent it from coming undone. Airbag 281 is designed as a large-area thin sheet, which can effectively increase the force-bearing area. Airbag 18 is designed as a small-area strip (distributed along the erector spinae muscles). Airbag 18 is located above and below the fractured vertebral body to compress the erector spinae muscles on both sides and avoid direct compression of the spinous process. Airbag 1 8 and airbag 2 81 form a closed loop through connecting tube 1 82 and connecting tube 2 83. One-way valve 1 is installed on connecting tube 1 82, which opens toward airbag 1 8, and one-way valve 2 is installed on connecting tube 2 83, which opens toward airbag 2 81. When the patient inhales or performs stretching exercises, airbag 2 81 is compressed and the air injection tube 710 pumps air. The gas is forced into airbag 1 8 through one-way valve 1. When the patient exhales, airbag 2 81 returns to its original position and generates negative pressure. The gas in airbag 1 8 flows back through one-way valve 2.
[0038] In this device, the return spring 66 and the return spring 612 are calculated using the alloy spring formula: F=kx, where F is the external force on the spring (unit: k), k is the spring constant (unit: N / m), and x is the spring deformation (unit: m). The elastic force of the alloy spring is then calculated to enable its use in this device.
[0039] Example 2 Instructions for using rehabilitation support devices after spinal fracture surgery, including the following steps: S1: Insert the second plug plate 52 into the inside of the second protective frame 41 and fix it inside the second protective frame 41 by manually rotating the bolt. Then, the patient lies on his side and the rear guard plate 2 is placed on the patient's back so that the pad 3 is in contact with the patient's body. Then, the patient lies flat and the front guard plate 1 is placed in front of the patient so that the pad 3 is in contact with the patient's body. S2: Insert the plug plate 5 into the interior of the protective frame 4 and fix it inside the protective frame 4 by manually rotating the bolts to complete the connection between the front guard plate 1 and the rear guard plate 2. At this time, the lower part of the front guard plate 1 reaches the anterior superior iliac spine, and the upper part of the front guard plate 1 reaches 2-3 cm below the armpit, which can effectively restrict the patient from bending over. According to the actual situation of the patient's spine, press the pressing column 69 in the moving frame 62 to push the moving plate 63, so that the wedge block 67 slides between the protrusions 61. When it is adjusted to a suitable position, release the pressing column 69. The locking block 68 is locked under the action of the reset spring 612 to achieve the final stable locking. The locking block 68 is locked between two adjacent protrusions 61, fixing the moving frame 62, thereby determining the relative position and angle of the front guard plate 1 and the rear guard plate 2. S3: After the patient puts on the support device, he pulls the pull ring 711 on the back guard plate 2 by hand. The pull ring 711 drives the sliding plate 712 to move through the pull rope 78. The movement of the sliding plate 712 drives the locking post 77 to move together, which in turn drives the insertion ring 76 to move. At the same time, the insertion ring 76 produces corresponding movement under the action of the tension spring 73 and the telescopic rod 74. The patient repeatedly pulls the pull ring 711 and uses the elasticity of the tension spring 73 to carry out rehabilitation training of the back muscles. S4: While performing stretching exercises, the patient takes deep breaths, expanding their chest and compressing the air bladder 2 81 in the front guard plate 1. The gas enters the air bladder 8 in the rear guard plate 2 through the connecting tube 1 82, gently pressing the intercostal area of the patient's back. At the same time, the pull rope 78 at the bottom of the sliding plate 712 pushes the gas in the piston rod 79 into the air bladder 8 during the sliding process, preventing the air bladder 8 from being underinflated. After the training, the gas in the air bladder 8 is discharged into the air bladder 2 81 through the connecting tube 2 83, realizing gas recycling.
[0040] The implementation principle of the rehabilitation support device and its usage method after spinal fracture surgery in this application is as follows: The patient places the rear guard plate 2 on their back and the front guard plate 1 on their chest and abdomen. Insert the first insert plate 5 into the first protective frame 4, and insert the second insert plate 52 into the second protective frame 41, securing them with bolts to complete the mechanical connection. At this point, the first airbag 8 and the second airbag 81 are located in the intercostal region of the back and on both sides of the ribcage, respectively. When adjusting the distance between the front guard plate 1 and the rear guard plate 2, press the pressing post 69 to disengage the locking block 68 from the protrusion 61. After adjusting to the appropriate position, release to achieve positioning. During rehabilitation training, the patient sits or stands and stretches from the rear guard plate... The pull ring 711 extending from below the plate 2 drives the sliding plate 712 to move, thereby stretching the tension spring 73 to provide resistance. The strength can be adjusted by selecting different numbers of tension springs 73. The stretching exercise is synchronized with deep breathing. When inhaling, the chest expands and squeezes the second air bladder 81. Air flows into the first air bladder 8, causing it to expand and generate pressure. At the same time, the stretching action pumps air into the inflation tube 710 to enhance the pressure. When exhaling, the chest contracts, the second air bladder 81 generates negative pressure, the air in the first air bladder 8 flows back, and the back pressure is released, achieving physiological and mechanical synchronization.
[0041] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A rehabilitation support device for spinal fracture surgery, characterized in that: The device includes a front guard plate (1) and a rear guard plate (2). The front guard plate (1) and the rear guard plate (2) are provided with pads (3) on opposite sides. A protective frame (4) is symmetrically provided on one side of the front guard plate (1), and a protective frame (41) is symmetrically provided on one side of the rear guard plate (2). A plug-in plate (5) for stable connection of the front guard plate (1) is provided inside the protective frame (4). A plug-in plate (52) for stable connection of the rear guard plate (2) is provided inside the protective frame (41). An auxiliary frame (53) is provided on one side of the plug-in plate (5). A connecting plate (51) is slidably provided inside the auxiliary frame (53) on one side of the plug-in plate (5). The connecting plate (51) and the auxiliary frame (53) are used to achieve a stable connection between the front guard plate (1) and the rear guard plate (2). An adjustment device (6) for adjusting the distance between the front guard plate (1) and the rear guard plate (2) is provided between the connecting plate (51) and the auxiliary frame (53). An airbag (81) for gently pressing the patient is provided inside the front guard plate (1). An airbag (8) for gently pressing the patient is provided inside the rear guard plate (2). A connecting tube (82) is provided on one side of the airbag (8) and the airbag (81). A connecting tube (83) is provided on the other side of the airbag (8) and the airbag (81).
2. The spinal fracture postoperative rehabilitation support device according to claim 1, characterized in that: The adjustment device (6) includes several protrusions (61) disposed inside the auxiliary frame (53). A movable frame (62) is disposed inside the auxiliary frame (53). The movable frame (62) is fixed on the side of the connecting plate (51) away from the plug-in plate (5). A movable plate (63) is disposed inside the movable frame (62). A pressing post (69) is slidably connected inside the auxiliary frame (53) on one side of the movable plate (63). A connecting device that can be snapped between adjacent protrusions (61) is disposed on one side of the movable plate (63). A reset device for driving the movable plate (63) to reset is disposed on the side of the movable plate (63) away from the pressing post (69).
3. The postoperative rehabilitation support device for spinal fractures according to claim 2, characterized in that: The connecting device includes a movable column (64) fixed on the top surface of the movable plate (63), a cylinder (65) slidably connected to the outer surface of the movable column (64), a return spring (66) between the movable column (64) and the cylinder (65), a wedge block (67) on the top surface of the cylinder (65), and a snap-fit block (68) on one side of the wedge block (67) that snaps between adjacent protrusions (61).
4. The postoperative rehabilitation support device for spinal fractures according to claim 2, characterized in that: The reset device includes a cylindrical second (611) fixedly disposed inside the movable frame (62), a movable column second (610) slidably disposed inside the cylindrical second (611), one side of the movable column second (610) fixedly disposed on the side of the movable plate (63) away from the pressing column (69), and a reset spring second (612) disposed between the movable column second (610) and the cylindrical second (611).
5. The postoperative rehabilitation support device for spinal fractures according to claim 1, characterized in that: The rear guard plate (2) has a cavity (7) inside. The side of the rear guard plate (2) is provided with a protective frame one (71) for protecting the internal structure of the cavity (7). The outer surface of the protective frame one (71) is provided with a protective frame two (72). The cavity (7) is provided with a training device for assisting patient rehabilitation.
6. A rehabilitation support device for spinal fracture surgery according to claim 5, characterized in that: The training device includes several base plates (75) that are slidably disposed inside the cavity (7). Sliding plates (712) are symmetrically disposed inside the cavity (7). A tension spring (73) and a telescopic rod (74) are disposed between the top surface of the base plate (75) and the cavity (7). A plug-in ring (76) is disposed at the bottom of the base plate (75). A snap-fit post (77) that is compatible with the plug-in ring (76) is slidably connected through the interior of the sliding plate (712). The snap-fit post (77) is slidably connected inside the first protective frame (71). A pull rope (78) that is slidably connected inside the rear guard plate (2) is disposed on the bottom surface of the sliding plate (712). A pull ring (711) is disposed on the side of the pull rope (78) away from the sliding plate (712).
7. A rehabilitation support device for spinal fracture surgery according to claim 6, characterized in that: The cavity (7) is provided with an auxiliary device for gently pressing the patient. The auxiliary device includes an air injection tube (710) fixed inside the rear guard plate (2), and one end of the air injection tube (710) is fixedly connected to and communicates with the air bag (8). The bottom surface of the sliding plate (712) is fixedly provided with a piston rod (79) that is slidably connected inside the air injection tube (710).
8. The postoperative rehabilitation support device for spinal fractures according to claim 1, characterized in that: The first airbag (8) is located in the intercostal region of the patient's back, and the second airbag (81) is located on both sides of the patient's chest.
9. A rehabilitation support device for spinal fracture surgery according to claim 2, characterized in that: There is a gap between the protrusion (61) and the inner wall of the auxiliary frame (53), and the gap is the same size as the snap-fit block (68).
10. A method for using a post-spinal fracture rehabilitation support device, applicable to any one of the post-spinal fracture rehabilitation support devices described in claims 1-9, characterized in that, Includes the following steps: S1: Insert the second plug plate (52) into the inside of the second protective frame (41) and fix it inside the second protective frame (41). Then, place the rear guard plate (2) on the back of the patient so that the pad (3) is in contact with the patient's body, and place the front guard plate (1) in front of the patient so that the pad (3) is in contact with the patient's body. S2: Insert the plug plate (5) into the inside of the protective frame (4) and fix it inside the protective frame (4) to complete the connection between the front guard plate (1) and the rear guard plate (2). According to the actual situation of the patient's spine, make the wedge block (67) slide between the protrusions (61). When it is adjusted to the appropriate position, snap the snap block (68) between two adjacent protrusions (61) and fix the moving frame (62) to determine the position of the front guard plate (1) and the rear guard plate (2). S3: When the patient is able to perform rehabilitation training, pull the pull ring (711) by hand. The pull ring (711) drives the sliding plate (712), the locking post (77), the tension spring (73), and the telescopic rod (74) to move together through the pull rope (78). Thus, the elastic force of the tension spring (73) is used for training. S4: While performing stretching exercises, the patient takes a deep breath, which will squeeze the second airbag (81). The gas enters the first airbag (8) through the first connecting tube (82) and gently presses the intercostal area of the patient's back. At the same time, the pull rope (78) at the bottom of the sliding plate (712) squeezes the gas in the piston rod (79) into the first airbag (8) during the sliding process. After the training is completed, the gas in the first airbag (8) is discharged into the second airbag (81) through the second connecting tube (83).