A fixing device for pediatric orthopedic imaging examination

Abstract

This invention belongs to the field of pediatric medical engineering technology, and particularly relates to a fixation device for pediatric orthopedic imaging examinations. It includes a fixed base, a fixed slide fixedly connected to the fixed base, a movable base slidably connected to the fixed slide, a bed board fixedly connected to the movable base, and symmetrically and evenly distributed spring push rods mounted on the movable base. The telescopic ends of the spring push rods are fixedly connected to mating columns. A portion of the mating columns are equipped with sliding rods, and another portion of the mating columns collectively have two sets of swinging components. This invention uses the sliding rods and swinging components to fix the child to the bed board and restrict their movement space. Depending on the child's body shape, some of the sliding rods and swinging components are blocked, while the remaining sliding rods and swinging components surround the child's body, preventing horizontal movement and reducing image ghosting during examination.

Description

Technical Field

[0001] This invention relates to the field of pediatric medical engineering technology, and in particular to a fixation device for pediatric orthopedic imaging examinations. Background Technology

[0002] Currently, pediatric orthopedic imaging examinations generally use CT scans. During a CT scan, the patient needs to lie still on a bed to ensure a more representative image and reduce ghosting. However, children cannot remain still for extended periods during CT scans, requiring immobilization. Currently, a strap-type fixation method is commonly used. While the strap conforms to the body's curves, achieving a tight and even fit with the child's contours is difficult. This results in gaps between the strap and the child's body, allowing for lateral movement. The child may exploit these gaps to twist and break free, rendering the strap ineffective in achieving the intended immobilization and ultimately causing ghosting, affecting the accuracy of the examination results. Summary of the Invention

[0003] In order to overcome the problem mentioned in the background art that existing strap-type fixation devices are difficult to prevent the child's body from moving horizontally when fixing the child, the present invention provides a fixation device for pediatric orthopedic imaging examination.

[0004] The technical implementation of the present invention is as follows: a fixation device for pediatric orthopedic imaging examination, comprising a fixed base, a fixed slide fixedly connected to the fixed base, a movable base slidably connected to the fixed slide, a bed board fixedly connected to the movable base, symmetrically and evenly distributed spring push rods installed on the movable base, and a mating column fixedly connected to the telescopic end of each spring push rod. A portion of the mating columns are provided with sliding rods, and another portion of the mating columns are collectively provided with two sets of swing components. Each swing component consists of several first swing rods, several second swing rods, and several third swing rods. The sliding rods and the swing components are slidably connected to the bed board. All the sliding rods and all the swing components are used to jointly fix the child's body. A driving component is provided on the movable base, and the driving component is used to drive the mating columns to move.

[0005] As a preferred embodiment of the present invention, the driving assembly includes symmetrically distributed first electric push rods, which are fixedly connected to the movable base. The telescopic ends of the symmetrically distributed first electric push rods are jointly fixed to a limiting plate, which is used to limit all the mating columns.

[0006] As a preferred embodiment of the present invention, the bed board is provided with a plurality of first slides, a plurality of second slides, and a plurality of third slides. The first swing rod corresponding to the first slide is used to fix the upper body of the child. The second swing rod corresponding to the second slide and the third swing rod corresponding to the third slide are both used to fix the lower body of the child. In each set of swing components, the second swing rod is located between all the third swing rods. The first swing rod, the second swing rod, and the third swing rod are all hinged to a swing base. The base is fixed to the adjacent mating column. The first slide, the second slide, and the third slide are all provided with sliding grooves. The first swing rod, the second swing rod, and the third swing rod slide in the adjacent sliding grooves and swing around the swing base.

[0007] In a preferred embodiment of the present invention, the height of the third slide is higher than the height of the second slide and the first slide, and the height of the second slide is equal to the height of the first slide.

[0008] As a preferred embodiment of the present invention, the sliding groove is composed of an inclined groove and a vertical groove. The inclination degree of the inclined groove of the sliding groove corresponding to the first slide is the same as the inclination degree of the inclined groove of the sliding groove corresponding to the second slide. Furthermore, the inclination degree of the inclined groove of the sliding groove on the third slide relative to its vertical groove is greater than the inclination degree of the inclined groove of the sliding groove corresponding to the first slide relative to its vertical groove.

[0009] As a preferred embodiment of the present invention, the movable base is fixedly connected to symmetrically distributed limiting strips, and the symmetrically distributed limiting strips are jointly fixedly connected to a plurality of straps, which are used to secure the child.

[0010] As a preferred embodiment of the present invention, it further includes a plurality of airbags, all of which are respectively fixed to adjacent sliding rods, adjacent first swing rods, adjacent second swing rods and adjacent third swing rods, and the airbags are used to buffer the squeezing force on the child.

[0011] As a preferred embodiment of the present invention, in the two sets of swing components, adjacent airbags in all the airbags corresponding to the upper body of the child are connected by a hose, and adjacent airbags in all the airbags corresponding to the lower body of the child are connected by the hose.

[0012] As a preferred embodiment of the present invention, a sponge body is installed on the sliding rod, the first swing rod, the second swing rod and the third swing rod, and the hose passes through the adjacent sponge body.

[0013] As a preferred embodiment of the present invention, it further includes a second electric push rod that is uniformly and symmetrically distributed. The second electric push rod is mounted on the movable base. The telescopic ends of the uniformly and symmetrically distributed second electric push rods are all fixedly connected to a slide block fixing frame. The first slide block, the second slide block, and the third slide block are all fixedly connected to the slide block fixing frame.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention fixes the child to the bed board and restricts his / her movement space by using sliding rods and swing components. According to the different body shapes of the children, some of the sliding rods and swing components are blocked, so that the remaining sliding rods and swing components surround the child's body and prevent the child's body from moving in the horizontal direction. This not only reduces the image ghosting phenomenon generated by the child during the examination, but also makes the fixation method simpler and greatly reduces the difficulty of operation for medical staff.

[0015] The present invention utilizes the relative sliding of the sliding grooves corresponding to the first slide, the second slide, and the third slide with the corresponding swing components to cause the swing rod to swing within the corresponding sliding groove and clamp the child's body surface, thereby further reducing the child's range of motion during fixation, increasing the stability of the device for fixing the child, reducing the movement of the child during fixation, and improving the integrity of the image.

[0016] This invention uses airbags to cushion the contact area of ​​the child, and connects multiple airbags with hoses and sets them in sections. During the examination, the device pumps air into the airbags to further fix the area of ​​the child to be imaged, reducing the child's discomfort during the examination and improving the child's comfort.

[0017] This invention uses the telescopic end of the second electric push rod to move the slide block fixing frame, thereby adjusting the positions of the first slide block, the second slide block, and the third slide block. Before the device starts moving the first electric push rod upward to fix the child, the swinging timing of the first swing rod, the second swing rod, and the third swing rod can be adjusted according to the child's body shape, thereby achieving a more fitting fixation for different children's body shapes. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the bed board, limiting strip, and straps of the present invention; Figure 3 This is an exploded three-dimensional structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram of the first slide, the second slide, and the mating column of the present invention; Figure 5This is a three-dimensional structural diagram of the second electric push rod and slide block fixing frame of the present invention; Figure 6 This is an exploded three-dimensional structural diagram of the first slide block, the second slide block, and the third slide block of the present invention; Figure 7 This is a three-dimensional structural diagram of the swing assembly and the first slide block of the present invention; Figure 8 This is a three-dimensional structural diagram of the airbag and sponge body of the present invention; Figure 9 This is a three-dimensional structural diagram of the first electric push rod, the limiting plate, and the swing base of the present invention. Figure 10 This is a three-dimensional structural diagram of the sliding rod and the sponge body of the present invention; Figure 11 This is a three-dimensional structural diagram of the second and third swing rods of the present invention.

[0019] The markings in the diagram are as follows: 1-Fixed base, 2-Fixed slide, 3-Moving base, 4-Bed board, 5-Spring push rod, 6-Matching column, 7-Sliding rod, 8-Swing assembly, 8011-First swing rod, 8012-Second swing rod, 8013-Third swing rod, 201-First electric push rod, 202-Limiting plate, 301-First slide, 302-Second slide, 303-Third slide, 304-Swing base, 3011-Sliding groove, 501-Limiting strip, 502-Strap, 601-Airbag, 701-Hose, 801-Sponge body, 901-Second electric push rod, 902-Slide fixing frame. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0021] Example 1 A fixation device for pediatric orthopedic imaging examinations, such as Figures 1-4 and Figures 7-11As shown, the device includes a fixed base 1, a fixed slide 2 fixedly connected to the fixed base 1, two electric slide rails mounted on the fixed slide 2, electric sliders slidably connected to the electric slide rails, a movable base 3 slidably connected to the fixed slide 2, the electric sliders on the fixed slide 2 being fixedly connected to the movable base 3, a bed board 4 fixedly connected to the upper part of the movable base 3, and several symmetrically and evenly distributed spring push rods 5 mounted on the movable base 3. Each spring push rod 5 contains a spring, and the telescopic end of each spring push rod 5 is fixedly connected to a mating post 6. A portion of the mating posts 6 are equipped with sliding rods 7, and the other portion of the mating posts 6 are collectively equipped with two symmetrically distributed sets of swing components 8. The upper ends of the sliding rods 7 and the two sets of swing components 8 are used to contact the child's body. Each set of swing components 8 consists of three pairs of first swing rods 8011 and two pairs of first swing rods 8011, eight pairs of second swing rods 8012, and eight pairs of third swing rods 8013. Figure 7 Taking the direction in the middle as an example, all the first swing rods 8011 are located above the second swing rods 8012 and the third swing rods 8013; in each set of swing components 8, in area A, three pairs of first swing rods 8011 are used to clamp and fix the child's arms, and the other two first swing rods 8011 are used to clamp and fix one side of the child's abdomen. In area B, eight pairs of second swing rods 8012 are used to clamp and fix the child's legs, and eight pairs of third swing rods 8013 are used to further clamp and fix the child's legs. The sliding rods 7 and the swing components 8 pass through the bed board 4 and are slidably connected to it. All the sliding rods 7 and all the swing components 8 are used to fix the child's body together. The moving base 3 is equipped with a drive component, which is used to drive the mating column 6 to move.

[0022] like Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown, the drive assembly includes two symmetrically distributed first electric push rods 201. The first electric push rods 201 are fixed to the movable base 3. The telescopic ends of the symmetrically distributed first electric push rods 201 are jointly fixed to a limiting plate 202. The middle part of the mating post 6 has a circular plate, and the circular plate is located below the limiting plate 202. The limiting plate 202 is provided with several evenly distributed through slots. All mating posts 6 pass through the corresponding through slots on the limiting plate 202. The limiting plate 202 drives the mating post 6 to move downward through the circular plate, and uses the circular plate on the mating post 6 to limit it.

[0023] like Figures 2-11As shown, the bed board 4 is provided with several first slides 301, several second slides 302, and several third slides 303. The number of first slides 301 corresponds one-to-one with the number of first swing rods 8011, the number of second slides 302 corresponds one-to-one with the number of second swing rods 8012, and the number of third slides 303 corresponds one-to-one with the number of third swing rods 8013. The first swing rod 8011 corresponding to the first slide 301 is used to support the upper body of the child. Figure 7 The area A shown in the diagram is fixed in place. The second swing rod 8012 corresponding to the second slide 302 and the third swing rod 8013 corresponding to the third slide 303 are both used to support the lower body of the child. Figure 7 As shown in area B, the second swing rod 8012 in each swing assembly 8 is located between all the third swing rods 8013. The first swing rod 8011, second swing rod 8012, and third swing rod 8013 are all hinged to a swing base 304. The base 304 is fixed to the adjacent mating post 6. The first slide 301, second slide 302, and third slide 303 are all provided with sliding grooves 3011. Each sliding groove 3011 consists of an inclined groove and a vertical groove, with the inclined groove located above the vertical groove. The inclination of the inclined groove of the sliding groove 3011 corresponding to the first slide 301 is the same as the inclination of the inclined groove of the sliding groove 3011 corresponding to the second slide 302, and the third slide 303... The inclination of the inclined groove of the upper sliding groove 3011 relative to its vertical groove is greater than that of the inclined groove of the first sliding block 301 relative to its vertical groove. The length of the vertical groove of the upper sliding groove 303 corresponding to the sliding groove 3011 is greater than the length of the vertical groove of the upper sliding groove 3011 corresponding to the first sliding block 301 and the second sliding block 302. The distance between the inclined grooves of the upper sliding groove 3011 corresponding to each pair of first sliding blocks 301, second sliding blocks 302 and third sliding blocks 303 gradually increases from top to bottom. The first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 slide in adjacent sliding grooves 3011 and swing around the swing base 304.

[0024] like Figure 8 and Figure 11 As shown, the height of the third slide 303 is higher than the height of the second slide 302 and the first slide 301, and the height of the second slide 302 is equal to the height of the first slide 301. After the first swing rod 8011 and the second swing rod 8012 swing, the third swing rod 8013 swings again, and the third swing rod 8013 further clamps and fixes the child.

[0025] like Figures 1-3 As shown, the upper part of the movable base 3 is fixed with symmetrically distributed limiting strips 501, and several straps 502 are fixed together on the symmetrically distributed limiting strips 501. The number of straps 502 can be set according to the actual situation. The straps 502 are used to fix the child.

[0026] The working principle of this embodiment is as follows: When using this device to perform imaging examinations on children, first turn on the power switch connected to the external of the fixed base 1. This activates the two first electric push rods 201. The telescopic ends of the two first electric push rods 201 together drive the limiting plate 202 to move downwards. The limiting plate 202 compresses all the mating posts 6 and moves them downwards. The mating posts 6 compress the telescopic ends of the spring push rods 5 and move downwards together. The springs inside the spring push rods 5 are compressed and stored by the telescopic ends of the spring push rods 5. All the mating posts 6 drive the corresponding sliding rods 7 and the corresponding swing rods through the swing base 304. As component 8 moves downward together, the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 slide in the inclined grooves on the adjacent sliding grooves 3011. As the sliding rod 7 and the swing component 8 continue to move downward, the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 move from the corresponding inclined grooves into the corresponding vertical grooves, until the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 move with the corresponding first slide block 301, the second slide block 302, and the third slide block 303 to the desired position. Figure 7 In this state, both first electric actuators 201 are closed.

[0027] After the telescopic end of the first electric push rod 201 stops moving, the medical staff guides the child to lie on the bed board. The medical staff adjusts the child's position, adjusting the child's arms to be between each pair of first swing rods 8011, adjusting the abdomen to be between the two first swing rods 8011 in the two sets of swing components 8, and adjusting the legs to be between each pair of second swing rods 8012. At this time, due to the differences in the body size of different children, two situations may occur. One is that the child's body does not block all the first swing rods 8011 and all the second swing rods 8012. The other is that the child's body will block some of the first swing rods 8011 and some of the second swing rods 8012. Taking the first scenario as an example, the medical staff secures the child with the strap 502 and then activates the two first electric push rods 201 again. The telescopic ends of the first electric push rods 201 drive the limiting plate 202 upward, and the telescopic ends of the spring push rods 5 push the mating pins 6 upward. The mating pins 6 contact the limiting plate 202, and all the mating pins 6 drive the adjacent sliding rods 7 and the two sets of swing components 8 upward through the swing base 304. The first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 slide in the vertical grooves within the adjacent sliding grooves 3011. As the sliding rods 7 and the swing components 8 continue to move upward, part of the sliding rods 7 contact the child's body. The sliding rod 7 makes contact and stops moving upward. As the limiting plate 202 continues to move upward, the mating post 6 corresponding to this part of the sliding rod 7 loses contact with the limiting plate 202. The other part of the sliding rod 7 that does not contact the child's body continues to contact the limiting plate 202 and move together. During this process, the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 all slide in the vertical groove of the adjacent sliding groove 3011. The sliding rod 7 that does not contact the child's body, the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 all protrude out of the bed board 4, surround the child's body, limit the child in the horizontal direction, and restrict the child's activity space in the horizontal direction.

[0028] After the first swing rod 8011 enters the inclined groove of the corresponding sliding groove 3011 from the vertical groove of the corresponding first slide block 301, the second swing rod 8012 simultaneously enters the inclined groove from the vertical groove of the corresponding sliding groove 3011 of the corresponding second slide block 302. During this process, the third swing rod 8013 continues to move upward along the vertical groove of the corresponding sliding groove 3011 of the third slide block 303. As the limiting plate 202 moves, the state of the second swing rod 8012 is as follows: Figure 11As shown, the first swing rod 8011 and the second swing rod 8012 swing along the inclined groove of the corresponding sliding groove 3011 until both the first swing rod 8011 and the second swing rod 8012 are in contact with the child's body and then stop moving. The limiting plate 202 continues to move. After the first swing rod 8011 and the second swing rod 8012 are in contact with the limiting plate 202, the mating post 6 corresponding to the first swing rod 8011 and the mating post 6 corresponding to the second swing rod 8012 lose contact with the limiting plate 202. The limiting plate 202 drives the third swing rod 8013 to continue to move upward. During this process, the third swing rod 8013 enters the inclined groove along the vertical groove of the corresponding sliding groove 3011. The third swing rod 8013 swings in the same direction as the corresponding second swing rod 8012 until the upper end of the third swing rod 8013 comes into contact with the child's body. At this time, the state of the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 is represented by the first state. The first electric push rod 201 stops moving upward. The first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 swing along the inclined groove of the corresponding sliding groove 3011 to clamp the child's body. The range of movement of the child in the horizontal direction is further reduced, and the stability of the child during the examination is improved.

[0029] If the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 do not come into contact with the child when they reach the uppermost end of the inclined groove of the corresponding sliding groove 3011, the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 will all stop moving.

[0030] After the sliding rod 7, the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 are fixed to the child, the electric slider on the fixed slide 2 is activated. The electric slider drives the moving base 3 and its parts and the child to move to the right. The moving base 3 moves the child into the imaging detection device for imaging examination. After the examination is completed, the electric slider drives the moving base 3 and its parts and the child to move to the left to reset. Then, the first electric push rod 201 is activated. The telescopic end of the first electric push rod 201 drives the limiting plate 202 to move down. The limiting plate 202 presses the mating post 6 corresponding to the third slide 303 to move down. The mating post 6 corresponding to the third slide 303 drives the third swing rod 8013 to move down through the adjacent swing base 304. The third swing rod 8013 slides along the sliding groove 3011 on the adjacent third slide 303. The limiting plate 202 contacts the mating post 6 corresponding to the second slide 302 and the mating post 6 corresponding to the first slide 301 in succession.

[0031] Then, the limiting plate 202 drives the mating pins 6 corresponding to the first slide block 301, the second slide block 302, and the third slide block 303 to move downwards together. The first swing rod 8011, the second swing rod 8012, and the third swing rod 8013 slide and move downwards within their respective sliding grooves 3011 until the telescopic ends of the two first electric push rods 201 drive the limiting plate 202 to move to the desired position. Figure 8 In the indicated state, all sliding rods 7 and all swing components 8 are no longer in contact with the child. Medical staff remove the straps 502, and the child gets off the bed. Then, the telescopic ends of the two first electric push rods 201 drive the limiting plate 202 to move upward. Together with the column 6, they drive all sliding rods 7, swing base 304 and swing components 8 to move upward. The first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 slide in their corresponding sliding grooves 3011 until the limiting plate 202 moves to the initial position. The power switch connected to the fixed base 1l is turned off. The above steps can be repeated for the next examination.

[0032] If the second situation occurs, that is, the child's body obstructs part of the first swing rod 8011, part of the second swing rod 8012 and part of the third swing rod 8013, the obstructed first swing rod 8011, second swing rod 8012 and third swing rod 8013 will no longer move upward, and their movement is the same as the movement of the obstructed sliding rod 7 mentioned above.

[0033] Example 2 Based on Example 1, such as Figure 2 and Figures 8-11 As shown, it also includes several airbags 601. In the initial state, each airbag 601 is filled with a certain amount of gas (the amount of gas depends on the specific situation) to keep it in an inflated state. All airbags 601 are fixed to adjacent sliding rods 7, adjacent first swing rods 8011, adjacent second swing rods 8012 and adjacent third swing rods 8013 respectively. The airbags 601 are used to buffer the squeezing force on the child.

[0034] like Figure 10 and Figure 11 As shown, in the two sets of swing components 8, in all the airbags 601 corresponding to the upper body A area of ​​the child, adjacent airbags 601 are connected by a hose 701, which is made of soft silicone. In all the airbags 601 corresponding to the lower body (B area) of the child, adjacent airbags 601 are connected by a hose 701. Furthermore, the airbags 601 in area A and the airbags 601 in area B are all connected to an air pump assembly, which is not shown in the figure.

[0035] like Figures 8-11As shown, a sponge body 801 is installed on the sliding rod 7, the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013. The sponge body 801 is used to reduce the hard compression when in contact with the child. The hose 701 passes through the adjacent sponge body 801.

[0036] The working principle of this embodiment is as follows: When medical staff instruct the child to lie down on the bed board, several airbags 601 are evenly distributed and come into contact with the child's body to cushion the contact between the child and the bed board, reducing the child's discomfort.

[0037] When the child is being tested, the electric slide rail on the fixed slide 2 moves the movable base 3 to the testing area. When the child's B area needs to be tested, the air pump connected to the outside of the B area airbag 601 is activated. The air pump pumps air into all the B area airbags 601, and all the B area airbags 601 begin to inflate. All the airbags 601 in the B area that are in contact with the child further clamp and fix the child's lower body, making the testing area more stable during the test. At the same time, the device only fixes the area of ​​the child that needs to be tested and does not further clamp the untested parts, improving the child's comfort.

[0038] After the examination of the child's B area is completed, the air pump connected to the outside of the airbag 601 in the B area is activated, causing all the airbags 601 in the B area to contract and return to their initial state. Subsequently, if the examination of the A area begins, the air pump connected to the corresponding first swing rod 8011 is activated to fix the child's examination area. After the examination is completed, the air pump is activated to de-inflate the airbag 601 corresponding to the first swing rod 8011.

[0039] Example 3 Based on Example 2, such as Figure 3 and Figures 6-8 As shown, it also includes a second electric push rod 901 that is evenly and symmetrically distributed. The second electric push rod 901 is mounted on the movable base 3. The telescopic ends of the evenly and symmetrically distributed second electric push rods 901 are all fixedly connected to the slide block fixing frame 902. The first slide block 301, the second slide block 302 and the third slide block 303 are all fixedly connected to the top of the slide block fixing frame 902.

[0040] The working principle of this embodiment is as follows: After the device is activated, the telescopic ends of the two first electric push rods 201 together drive the limiting plate 202 to move downwards. Simultaneously, the second electric push rod 901 is activated, and its telescopic end drives the slide block fixing frame 902 to move downwards together. The slide block fixing frame 902 drives the first slide block 301, the second slide block 302, and the third slide block 303 to move downwards, meaning that the first slide block 301, the second slide block 302, and the third slide block 303 are respectively stationary relative to their corresponding swing rods 8, until the first slide block 301, the second slide block 302, and the third slide block 303 reach a certain position. Figure 8 After the indicated state is reached, due to the different body circumferences of the children, the medical staff first adjusts the positions of the first slide 301, the second slide 302, and the third slide 303 according to the child's body circumference. Once the medical staff has adjusted the child to the corresponding circumference, they activate the second electric push rod 901. The telescopic end of the second electric push rod 901, through the slide fixing bracket 902, moves all the first slides 301, the second slide 302, and the third slide 303 upwards to positions corresponding to the child's body shape. Then, the second electric push rod 901 is deactivated. It should be noted that the smaller the child's body circumference, the closer the positions of the first slides 301, the second slide 302, and the third slide 303 are to the upper side, and the later the swinging time of the first swing rod 8011, the second swing rod 8012, and the third swing rod 8013. The closer the clamping position of 8012 and the third swing rod 8013 is to the upper side of the child's clamped part, the closer the position of the first slide 301, the second slide 302 and the third slide 303 is to the lower side when the child's body circumference is larger. The earlier the swinging time of the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 is, and the closer the clamping position of the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 is to the lower side of the child's clamped part. This setting improves the applicability of the device, so that before the device starts the first electric push rod 201 to move upward to fix the child, the timing of the swinging of the first swing rod 8011, the second swing rod 8012 and the third swing rod 8013 can be adjusted according to the specific body shape of the child, so as to achieve a more fitting fixation for different body shapes of the child.

[0041] After the examination is completed, the movable base 3, its components, and the child move to the left to reset. Once the movable base 3 has reset, the first electric push rod 201 is activated, which, in conjunction with the column 6, drives the sliding rod 7 and the swing assembly 8 to move downwards. Figure 8 In this state, the telescopic end of the second electric push rod 901 then drives all the first slides 301, second slides 302, and third slides 303 to move to the position via the slide bracket 902. Figure 8As shown in the diagram, the child is removed from the bed board 4. Then, the first electric push rod 201 and the second electric push rod 901 are controlled to move the limiting plate 202 and the slide block fixing frame 902 upward synchronously to reset.

[0042] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A fixation device for pediatric orthopedic imaging examination, comprising a fixed base (1), a fixed slide (2) fixedly connected to the fixed base (1), a movable base (3) slidably connected to the fixed slide (2), and a bed board (4) fixedly connected to the movable base (3), characterized in that, It also includes symmetrically and evenly distributed spring push rods (5), all of which are mounted on the movable base (3). The telescopic ends of the spring push rods (5) are fixed to the mating columns (6). A portion of the mating columns (6) are provided with sliding rods (7), and another portion of the mating columns (6) are provided with two sets of swing components (8). The swing components (8) are composed of several first swing rods (8011), several second swing rods (8012), and several third swing rods (8013). The sliding rods (7) and the swing components (8) are slidably connected to the bed board (4). All the sliding rods (7) and all the swing components (8) are used to fix the child's body together. The movable base (3) is provided with a drive component, which is used to drive the mating columns (6) to move.

2. A fixation device for pediatric orthopedic imaging examination according to claim 1, characterized in that, The drive assembly includes symmetrically distributed first electric push rods (201), which are fixed to the movable base (3). The telescopic ends of the symmetrically distributed first electric push rods (201) are jointly fixed to a limiting plate (202), which is used to limit all the mating columns (6).

3. A fixation device for pediatric orthopedic imaging examination according to claim 1, characterized in that, The bed board (4) is provided with a plurality of first slides (301), a plurality of second slides (302), and a plurality of third slides (303). The first swing rod (8011) corresponding to the first slide (301) is used to fix the upper body of the child. The second swing rod (8012) corresponding to the second slide (302) and the third swing rod (8013) corresponding to the third slide (303) are both used to fix the lower body of the child. In each set of swing components (8), the second swing rod (8012) is located between all the third swing rods (8013). The first swing rod (8011), the second swing rod (8012), and the third swing rod (8013) are all hinged to a swing base (304). The base (304) is fixedly connected to the adjacent mating column (6). The first slide (301), the second slide (302), and the third slide (303) are all provided with sliding grooves (3011). The first swing rod (8011), the second swing rod (8012), and the third swing rod (8013) slide in the adjacent sliding grooves (3011) and swing around the swing base (304).

4. A fixation device for pediatric orthopedic imaging examination according to claim 3, characterized in that, The height of the third slide (303) is higher than the height of the second slide (302) and the first slide (301), and the height of the second slide (302) is equal to the height of the first slide (301).

5. A fixation device for pediatric orthopedic imaging examination according to claim 3, characterized in that, The sliding groove (3011) is composed of an inclined groove and a vertical groove. The inclination degree of the inclined groove of the sliding groove (3011) corresponding to the first slide (301) is the same as the inclination degree of the inclined groove of the sliding groove (3011) corresponding to the second slide (302). The inclination degree of the inclined groove of the sliding groove (3011) on the third slide (303) relative to its vertical groove is greater than the inclination degree of the inclined groove of the sliding groove (3011) corresponding to the first slide (301) relative to its vertical groove.

6. A fixation device for pediatric orthopedic imaging examination according to claim 2, characterized in that, The movable base (3) is fixed with symmetrically distributed limiting strips (501), and the symmetrically distributed limiting strips (501) are jointly fixed with several straps (502), which are used to fix the child.

7. A fixation device for pediatric orthopedic imaging examination according to claim 5, characterized in that, It also includes several airbags (601), all of which are fixed to the adjacent sliding rod (7), the adjacent first swing rod (8011), the adjacent second swing rod (8012) and the adjacent third swing rod (8013), respectively. The airbags (601) are used to buffer the squeezing force on the child.

8. A fixation device for pediatric orthopedic imaging examination according to claim 7, characterized in that, In the two sets of swing components (8), in all the airbags (601) corresponding to the upper body of the child, adjacent airbags (601) are connected by a hose (701), and in all the airbags (601) corresponding to the lower body of the child, adjacent airbags (601) are connected by a hose (701).

9. A fixation device for pediatric orthopedic imaging examination according to claim 8, characterized in that, A sponge (801) is installed on each of the sliding rod (7), the first swing rod (8011), the second swing rod (8012) and the third swing rod (8013), and the hose (701) passes through the adjacent sponge (801).

10. A fixation device for pediatric orthopedic imaging examination according to claim 4, characterized in that, It also includes a second electric push rod (901) that is evenly and symmetrically distributed. The second electric push rod (901) is mounted on the movable base (3). The telescopic ends of the evenly and symmetrically distributed second electric push rods (901) are all fixedly connected to the slide bracket (902). The first slide (301), the second slide (302) and the third slide (303) are all fixedly connected to the slide bracket (902).

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