A CT scan auxiliary device

Abstract

This invention relates to the field of CT examination technology, and in particular to a CT examination auxiliary device. The device includes a bed board with a groove on its bottom side, a support mechanism connected to the bed board, and multiple equidistant elastic bands on the bed board. Lead strips are fixedly connected to each elastic band. One end of each elastic band is fixedly connected to one side of the bed board, and the other end is fixedly connected to an iron sheet. Multiple magnets are fixedly connected to the bed board, and the iron sheet can be attracted to the magnets. The device also includes two spaced-apart mounting slots, an anti-reflection mechanism, and an anti-penetration mechanism. The patient lies supine on the bed board, with the elastic bands placed above the patient. The iron sheets at the other end of the elastic bands are then attracted to their corresponding magnets. The remaining areas of the patient's body are protected by the lead strips. The device can select different areas of the patient's body for protection based on the detection location, making it more flexible and applicable to a wider range of situations.

Description

Technical Field

[0001] This invention relates to the field of CT examination technology, and more particularly to a CT examination auxiliary device. Background Technology

[0002] A CT examination auxiliary device for radiological screening, with publication number CN218978944U, is disclosed. Specifically, it includes a testing platform with four support columns fixedly connected to its lower end face to stabilize the device. The testing platform also has two symmetrical armrests for assisting the patient in sitting down. An auxiliary mechanism and a connecting mechanism are located on the upper side of the testing platform, while a driving mechanism is located on the lower side. The auxiliary mechanism ensures greater patient comfort during the examination and allows for examinations for individuals of different heights. The driving mechanism provides power to the entire device, ensuring its normal operation. The connecting mechanism helps the patient lie down and sit up. This invention enables more comfortable examinations by smoothly rotating the backrest, facilitating patient sitting and lying down. Existing CT examination auxiliary equipment uses a bed board to help patients maintain a supine or other posture during the examination. In addition, existing technologies often use protective clothing containing lead blocks to protect other parts of the patient's body from X-ray radiation. However, since the protective clothing is fixed in its protective position, it needs to be removed if the torso is to be irradiated with X-rays. This results in the inability to effectively protect other parts of the body during the CT examination. Therefore, we propose a CT examination auxiliary device. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing CT examination auxiliary devices, which rely on setting up a bed board to help patients maintain a supine or other posture during the examination. In addition, existing technologies often use protective clothing containing lead blocks to protect other parts of the patient's body from X-ray beam radiation. However, since the protective clothing has a fixed protective position, it needs to be removed if the torso is to be irradiated with X-rays, which results in the inability to effectively protect other parts of the body during the CT examination. Therefore, this invention proposes a CT examination auxiliary device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a CT examination auxiliary device, including a bed board with a groove on the bottom side, and a support mechanism connected to the bed board. The bed board is provided with multiple equidistant elastic bands, each with a lead strip fixedly connected to it. One end of each elastic band is fixedly connected to one side of the bed board, and the other end is fixedly connected to an iron sheet. Multiple magnets are fixedly connected to the bed board, and the iron sheet can be attracted to the magnets respectively.

[0006] It also includes two spaced-apart mounting slots, an anti-reflection mechanism, and an anti-penetration mechanism. The mounting slots are located on the top of the bed board. The anti-reflection mechanism is installed in the two mounting slots, and the anti-penetration mechanism is installed in the groove. An adjustment mechanism is provided on the bed board, and the adjustment mechanism is connected to the anti-reflection mechanism and the anti-penetration mechanism.

[0007] Furthermore, a cotton pad is placed on top of the bed board.

[0008] Furthermore, the support mechanism includes a bracket, two spaced-apart slides, and two sliders. The bracket is located at the lower end of the bed board, the two slides are fixedly connected to the top of the bracket, and the two sliders are fixedly connected to the bottom ends of the bed board. The sliders are slidably disposed within the slides.

[0009] Furthermore, the anti-reflection mechanism includes two first lead plates and two connecting shafts. The connecting shafts are fixedly connected to the first lead plates and pass through the first lead plates. The two first lead plates are respectively arranged in two mounting slots, and the connecting shafts are rotatably installed in the mounting slots.

[0010] Furthermore, the anti-penetration mechanism includes a frame, which is disposed in the groove. A second lead plate is fixedly installed on the upper end of the frame, and guide rods pass through both ends of the frame. Both ends of the guide rods are fixedly connected to both sides of the groove.

[0011] Furthermore, the adjustment mechanism includes a first belt mechanism, with one end of each of the two connecting shafts penetrating the bed board. The first belt mechanism is mounted on the two connecting shafts. A first bevel gear is fixedly mounted on one end of the connecting shaft located on one side. A base block is fixedly mounted at the bottom of the frame, and a lead screw is threaded through and connected to the base block. Both ends of the lead screw are rotatably mounted on opposite sides of a groove. A side shaft is rotatably mounted on one end of the bed board, penetrating the bed board and fixedly connected to the lead screw. A support plate is fixedly mounted on the bed board, and a linkage shaft is rotatably mounted on the support plate. A second bevel gear is fixedly mounted on one end of the linkage shaft, and the second bevel gear is connected to the first... A bevel gear meshes, a second belt mechanism is installed between the linkage shaft and the side shaft, a turntable is fixedly installed at the end of the side shaft, a base plate is fixedly installed on the bed board, a top block is provided at the upper end of the base plate, a wheel axle is rotatably installed on the top block, a tension wheel is fixedly installed at the end of the wheel axle, two spaced vertical rods are fixedly installed on the base plate, the upper end of the vertical rods passes through the top block, a spring is sleeved on each vertical rod, the two ends of the springs are respectively fixedly connected to the base plate and the top block, a pressure plate is provided at the upper end of the top block, the pressure plate is fixedly connected to the upper ends of the two vertical rods, the tension wheel contacts the belt of the second belt mechanism and keeps the belt of the second belt mechanism in a taut state.

[0012] Furthermore, the adjustment mechanism also includes two spaced-apart inner plates, which are fixedly connected inside the frame. Each inner plate has an opening that penetrates it. A third lead plate penetrates each inner plate, and the two third lead plates are symmetrically distributed vertically. A rack is fixedly connected to the opposite side of each third lead plate, and the racks penetrate the openings. An inner shaft is rotatably mounted inside the frame, with one end penetrating the frame. A gear is fixedly mounted on the inner shaft, meshing with the upper and lower racks. A pulley is fixedly mounted on one end of the inner shaft. A mounting base is provided on one side of the bed board. Two spaced-apart telescopic rods are fixedly mounted on the bed board, and the output ends of the telescopic rods are fixedly connected to the top of the mounting base. Two spaced-apart belt shafts are rotatably mounted on one side of the mounting base. A third belt mechanism is mounted on the two belt shafts, and the belt of the third belt mechanism contacts the pulley. A servo motor is fixedly mounted on the mounting base, and the output shaft of the servo motor is fixedly connected to the belt shaft located on one side.

[0013] Furthermore, both the inner surface of the slide and the outer surface of the slider are polished.

[0014] The CT examination auxiliary device proposed in this invention has the following advantages: The patient lies supine on a bed board, and an elastic band with lead strips attached is placed above the patient. An iron piece at the other end of the elastic band is then attracted to a corresponding magnet to maintain the fixed position of the elastic band and lead strips. When it is necessary to irradiate a specific area of ​​the patient's body, such as the abdomen, the portion of the lead strip above the abdomen is removed, and the remaining portion is used. X-rays can then directly irradiate the abdomen, while the rest of the patient's body is protected by the lead strips. Therefore, this auxiliary device can select different areas of the patient's body for protection based on the detection location, making it more flexible and applicable to a wider range of situations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the operation of a CT examination auxiliary device proposed in this invention.

[0016] Figure 2 This is a schematic diagram of the structure of the bed board of a CT examination auxiliary device proposed in this invention.

[0017] Figure 3 This is a side view of the bed board of a CT examination auxiliary device proposed in this invention.

[0018] Figure 4 This is a top view of the bed board of a CT examination auxiliary device proposed in this invention.

[0019] Figure 5This is an enlarged schematic diagram of the interior of a groove in a CT examination auxiliary device proposed in this invention.

[0020] Figure 6 This is an enlarged schematic diagram of the two third lead plates of a CT examination auxiliary device proposed in this invention.

[0021] Figure 7 This is a planar schematic diagram of the two third lead plates of a CT examination auxiliary device proposed in this invention.

[0022] Figure 8 This is an enlarged schematic diagram of a portion of the structure of the mounting base of a CT examination auxiliary device proposed in this invention.

[0023] Figure 9 This is an enlarged schematic diagram of a portion of the structure of the adjustment mechanism of a CT examination auxiliary device proposed in this invention.

[0024] Figure 10 This is a partially enlarged schematic diagram of the structure of two first lead plates in a CT examination auxiliary device proposed in this invention.

[0025] Figure 11 This is a simplified diagram illustrating the protective principle of a CT examination auxiliary device proposed in this invention.

[0026] In the diagram: 1. Bed board; 2. Elastic belt; 3. Lead strip; 4. Iron sheet; 5. Magnet; 6. Mounting groove; 7. Bracket; 8. Slide rail; 9. Slider; 10. First lead plate; 11. Connecting shaft; 12. Frame; 13. Second lead plate; 14. Guide rod; 15. Groove; 16. First belt mechanism; 17. First bevel gear; 18. Lead screw; 19. Side shaft; 20. Support plate; 21. Linkage shaft; 22. Second bevel gear; 23. Second belt mechanism; 24. Turntable; 25. Base plate; 26. Top block; 27. Wheel axle; 28. Tensioning wheel; 29. ​​Vertical rod; 30. Spring; 31. Pressure plate; 32. Inner plate; 33. Through opening; 34. Third lead plate; 35. Rack; 36. Inner shaft; 37. Gear; 38. Belt pulley; 39. Mounting seat; 40. Telescopic rod; 41. Belt shaft; 42. Third belt mechanism; 43. Servo motor; 44. Base block; 45. CT machine. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example 1:

[0029] Reference Figure 1-11A CT examination auxiliary device includes a bed board 1 with a groove 15 on the bottom side of the bed board 1, and a support mechanism connected to the bed board 1. The bed board 1 is provided with a plurality of equidistant elastic bands 2, each of which is fixedly connected with a lead strip 3. One end of the elastic band 2 is fixedly connected to one side of the bed board 1, and the other end of the elastic band 2 is fixedly connected with an iron sheet 4. A plurality of magnets 5 are fixedly connected to the bed board 1, and the iron sheet 4 can be attracted to the magnets 5 respectively.

[0030] A schematic diagram of the device's operation can be found in the attached diagram of the instruction manual. Figure 1 In the indicated state, the patient can lie supine on the bed board 1. Before lying supine, separate the iron plate 4 and magnet 5 at one end of the elastic band 2 and remove all the elastic bands 2 to expose the bed board 1. Then, the patient lies on the bed board 1. Then, select which positions of the lead strips 3 to use according to the patient's detection position. When using the lead strips 3, place the elastic band 2 above the patient, with the lead strips 3 connected to the elastic band 2. Then, attach the iron plate 4 at the other end of the elastic band 2 to the corresponding magnet 5 to keep the positions of the elastic band 2 and the lead strips 3 fixed. When it is necessary to irradiate a certain position on the patient's body, such as the abdomen, when using the lead strips 3, remove the part of the lead strips 3 above the abdomen and put the rest of the lead strips 3 into use. At this time, the X-rays can directly irradiate the abdomen, while the rest of the patient's body will be protected by the lead strips 3.

[0031] A cotton pad is placed on top of the bed board 1, which can improve the patient's comfort when lying on the cotton pad. The support mechanism includes a bracket 7, two spaced slide rails 8 and two sliders 9. The bracket 7 is located at the lower end of the bed board 1, the two slide rails 8 are fixedly connected to the top of the bracket 7, and the two sliders 9 are fixedly connected to the bottom ends of the bed board 1. The sliders 9 are slidably disposed in the slide rails 8.

[0032] The bed board 1 is supported by a support mechanism, and the bed board 1 can be moved horizontally along the direction of the slide 8 by a slider 9 that is slidably set in the slide 8, so as to facilitate the pushing of the bed board 1 and the patient on the bed board 1 into the CT equipment.

[0033] Working principle: Please refer to the attached diagram in the instruction manual for a schematic diagram of the device's operation. Figure 1In the indicated state, the patient can lie supine on the bed board 1. Before lying supine, separate the iron plate 4 and magnet 5 at one end of the elastic band 2 and remove all the elastic bands 2 to expose the bed board 1. Then, the patient lies on the bed board 1. Then, select which positions of the lead strips 3 to use according to the patient's detection position. When using the lead strips 3, place the elastic band 2 above the patient, with the lead strips 3 connected to the elastic band 2. Then, attach the iron plate 4 at the other end of the elastic band 2 to the corresponding magnet 5 to keep the positions of the elastic band 2 and the lead strips 3 fixed. When it is necessary to irradiate a certain position on the patient's body, such as the abdomen, when using the lead strips 3, remove the part of the lead strips 3 above the abdomen and put the rest of the lead strips 3 into use. At this time, the X-rays can directly irradiate the abdomen, while the rest of the patient's body will be protected by the lead strips 3. Therefore, the auxiliary device of this application can select different positions of the patient's body for protection according to the detection position, making it more flexible to use and with a wider range of applications.

[0034] Example 2:

[0035] Since the lead strip 3 in Example 1 only covers the top of the patient, and the back of the patient is not protected, and in actual CT examination, the location of the lesion varies. When the lesion is located on the buttocks, back or the back of the body, the radiation emitted by the CT equipment is mostly emitted from the bottom of the patient's body. Therefore, the back of the patient is not protected and will still be exposed to the radiation hazards of X-rays.

[0036] Meanwhile, the environment in a CT room is complex. In actual testing, the direction of X-rays is often reflected by objects in the CT room, which causes patients to be exposed to X-rays from different directions. Therefore, even if the front and back of the patient are protected, it is not possible to provide comprehensive protection for the patient.

[0037] Reference Figure 1-10 As another preferred embodiment of the present invention, the difference from embodiment 1 is that it also includes two spaced-apart mounting grooves 6, an anti-reflection mechanism and an anti-penetration mechanism. The mounting grooves 6 are opened on the top of the bed board 1, the anti-reflection mechanism is installed in the two mounting grooves 6, and the anti-penetration mechanism is installed in the groove 15.

[0038] The anti-reflection mechanism includes two first lead plates 10 and two connecting shafts 11. The connecting shafts 11 are fixedly connected to the first lead plates 10 and pass through the first lead plates 10. The two first lead plates 10 are respectively set in two mounting grooves 6, and the connecting shafts 11 are rotatably installed in the mounting grooves 6. The anti-penetration mechanism includes a frame 12, which is set in a groove 15. A second lead plate 13 is fixedly installed on the upper end of the frame 12. Guide rods 14 pass through both ends of the frame 12, and both ends of the guide rods 14 are fixedly connected to both sides in the groove 15.

[0039] After using multiple lead strips 3 to shield the patient's upper body, a second lead plate 13 is installed at the lower end of the bed board 1 to protect the patient's back. When X-rays are emitted from the patient's back, the second lead plate 13 can block the X-rays from passing through the patient. By installing two first lead plates 10 at the front and rear ends of the patient, and then rotating the connecting shaft 11 to rotate the first lead plates 10 by a certain angle, the patient is positioned between the two first lead plates 10. The two first lead plates 10 block X-rays parallel to the patient or from oblique upwards. Therefore, the device not only provides protection for the patient's front and back, but also further protects against X-rays from other directions.

[0040] Since the position of the second lead plate 13 is fixed, similarly, when the patient's lesion position changes, the position of the second lead plate 13 also needs to be changed accordingly. On the other hand, when the patient adopts different postures for examination, such as when the patient lies on the bed board 1 with the upper body bent at a certain angle, the angle of the first lead plate 10 needs to be adjusted so that the first lead plate 10 can completely block the lateral X-rays.

[0041] The bed board 1 is equipped with an adjustment mechanism, which is connected to the anti-reflection mechanism and the anti-penetration mechanism. The position of the second lead plate 13 and the angle of the first lead plate 10 are adjusted by setting the adjustment mechanism.

[0042] Example 2:

[0043] Reference Figure 1-11As another preferred embodiment of the present invention, the difference from Embodiment 1 is that the adjustment mechanism includes a first belt mechanism 16, one end of each of the two connecting shafts 11 passes through the bed board 1, the first belt mechanism 16 is mounted on the two connecting shafts 11, one end of the connecting shaft 11 located on one side is fixedly mounted with a first bevel gear 17, a base block 44 is fixedly mounted at the bottom of the frame 12, a lead screw 18 passes through and is threadedly connected to the base block 44, both ends of the lead screw 18 can be rotatably mounted on both sides of the groove 15, a side shaft 19 is rotatably mounted at one end of the bed board 1, the side shaft 19 passes through the bed board 1 and is fixedly connected to the lead screw 18, a support plate 20 is fixedly mounted on the bed board 1, a linkage shaft 21 is rotatably mounted on the support plate 20, a second bevel gear 22 is fixedly mounted at one end of the linkage shaft 21, the second bevel gear... 22 meshes with the first bevel gear 17. A second belt mechanism 23 is installed between the linkage shaft 21 and the side shaft 19. A turntable 24 is fixedly installed at the end of the side shaft 19. A base plate 25 is fixedly installed on the bed board 1. A top block 26 is provided at the upper end of the base plate 25. A wheel axle 27 is rotatably installed on the top block 26. A tension wheel 28 is fixedly installed at the end of the wheel axle 27. Two spaced vertical rods 29 are fixedly installed on the base plate 25. The upper end of the vertical rods 29 passes through the top block 26. A spring 30 is sleeved on each vertical rod 29. The two ends of the springs 30 are fixedly connected to the base plate 25 and the top block 26, respectively. A pressure plate 31 is provided at the upper end of the top block 26. The pressure plate 31 is fixedly connected to the upper ends of the two vertical rods 29. The tension wheel 28 contacts the belt of the second belt mechanism 23 and keeps the belt of the second belt mechanism 23 in a taut state.

[0044] The adjustment mechanism also includes two spaced-apart inner plates 32, which are fixedly connected inside the frame 12. Each inner plate 32 has a through-hole 33 that penetrates it. A third lead plate 34 passes through each inner plate 32, and the two third lead plates 34 are symmetrically distributed vertically. A rack 35 is fixedly connected to the opposite sides of each third lead plate 34, and the racks 35 pass through the through-holes 33. An inner shaft 36 is rotatably mounted inside the frame 12, with one end penetrating the frame 12. A gear 37 is fixedly mounted on the inner shaft 36, meshing with the upper and lower racks 35. A pulley 38 is fixedly mounted on one end of the inner shaft 36. A mounting base 39 is provided on one side of the bed plate 1. Two telescopic rods 40 are fixedly mounted on the bed plate 1 at intervals. The output ends of the telescopic rods 40 are fixedly connected to the top of the mounting base 39. Two belt shafts 41 are rotatably mounted on one side of the mounting base 39. A third belt mechanism 42 is mounted on the two belt shafts 41. The belt of the third belt mechanism 42 is in contact with the pulley 38. A servo motor 43 is fixedly mounted on the mounting base 39. The output shaft of the servo motor 43 is fixedly connected to the belt shaft 41 located on one side. The inner surface of the slide rail 8 and the outer surface of the slider 9 are both polished.

[0045] Working principle: Please refer to the attached diagram in the instruction manual. Figure 11The schematic diagram shown illustrates the protective principle of the device. The patient lies flat or at a certain angle on the bed board. The lead strip 3 blocks the radiation from above, the second lead plate 13 and the third lead plate 34 block the radiation from below, and the first lead plate 10 blocks the radiation from the sides.

[0046] The specific working principle is as follows: The patient lies on the bed board 1. The lead strips 3 are selected according to the patient's detection position. When using lead strips 3, the elastic band 2 is placed above the patient. The lead strips 3 are connected to the elastic band 2. The iron piece 4 at the other end of the elastic band 2 is then attracted to the corresponding magnet 5 to keep the elastic band 2 and lead strips 3 in a fixed position. When it is necessary to irradiate a certain part of the patient's body, such as the abdomen, the part of lead strips 3 above the abdomen is removed when using lead strips 3, and the rest of the lead strips 3 are put into use. At this time, the X-rays can directly irradiate the abdomen, while the rest of the patient's body will be protected by the lead strips 3. Then, by rotating the turntable 24, the side shaft 19 is driven to rotate. At the same time, the pulley 38 tensions the belt of the second belt mechanism 23. The second belt mechanism 23 can drive the side shaft 19 and the linkage shaft 21 to rotate synchronously. The second bevel gear 22 at one end of the linkage shaft 21 rotates and drives the first bevel gear 17 to rotate. The first bevel gear 17 rotates synchronously with the connecting shaft 11 on one side. In conjunction with the first belt mechanism 16, it drives the two connecting shafts 11 to rotate synchronously. The connecting shaft 11 is connected to the first lead plate 10 and rotates synchronously, thereby driving the first lead plate 10 to rotate at different angles. By adjusting the rotation angle of the first lead plate 10, the protection height of the first lead plate 10 can be adjusted. When the first lead plate 10 is in a vertical state, the protection height of the first lead plate 10 is at its maximum.

[0047] Then, press down on the pressure plate 31 to cause the spring 30 to contract and the tension wheel 28 to disengage from the second belt mechanism 23. At this time, rotate the turntable 24 to adjust the position of the second lead plate 13, while the first lead plate 10 remains fixed. The side shaft 19 rotates and drives the frame 12 to move along the direction of the guide rod 14, which can drive the second lead plate 13 on the frame 12 to move synchronously, thereby adjusting the position of the second lead plate 13 and thus protecting different positions on the back of the patient.

[0048] When the protective area of ​​the second lead plate 13 is insufficient to completely protect a certain area on the back of the patient, the telescopic rod 40 is activated to move the mounting base 39, and the belt of the third belt mechanism 42 is kept in contact with the pulley 38. The servo motor 43 drives the third belt mechanism 42 to rotate, and the belt of the third belt mechanism 42 drives the pulley 38 to rotate. The pulley 38 rotates synchronously with the inner shaft 36 and the gear 37, so that the gear 37 drives the two third lead plates 34 to move away from each other, so that the two third lead plates 34 move out from both ends of the frame 12 respectively. The two third lead plates 34 are equivalent to extending the length of both ends of the second lead plate 13, and the protective area of ​​the second lead plate 13 can be increased according to the protection requirements.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A CT examination auxiliary device, comprising a bed board (1), characterized in that, The bed board (1) has a groove (15) on its bottom side and also includes a support mechanism. The support mechanism is connected to the bed board (1). The bed board (1) is provided with multiple equidistant elastic bands (2). Lead strips (3) are fixedly connected to each elastic band (2). One end of the elastic band (2) is fixedly connected to one side of the bed board (1), and the other end of the elastic band (2) is fixedly connected to an iron sheet (4). Multiple magnets (5) are fixedly connected to the bed board (1), and the iron sheet (4) can be attracted to the magnets (5) respectively. It also includes two spaced mounting slots (6), an anti-reflection mechanism and an anti-penetration mechanism. The mounting slots (6) are opened on the top of the bed board (1). The anti-reflection mechanism is installed in the two mounting slots (6). The anti-penetration mechanism is installed in the groove (15). An adjustment mechanism is provided on the bed board (1). The adjustment mechanism is connected to the anti-reflection mechanism and the anti-penetration mechanism. The anti-reflection mechanism includes two first lead plates (10) and two connecting shafts (11). The connecting shafts (11) are fixedly connected to the first lead plates (10) respectively and the connecting shafts (11) pass through the first lead plates (10). The two first lead plates (10) are respectively set in two mounting slots (6). The connecting shafts (11) are rotatably installed in the mounting slots (6). The anti-penetration mechanism includes a frame (12), which is set in a groove (15). A second lead plate (13) is fixedly installed on the upper end of the frame (12). Guide rods (14) pass through both ends of the frame (12), and both ends of the guide rods (14) are fixedly connected to both sides of the groove (15). The adjustment mechanism includes a first belt mechanism (16), one end of each of the two connecting shafts (11) passes through the bed board (1), the first belt mechanism (16) is mounted on the two connecting shafts (11), one end of the connecting shaft (11) on one side is fixedly mounted with a first bevel gear (17), a base block (44) is fixedly mounted at the bottom of the frame (12), a lead screw (18) passes through and is threadedly connected to the base block (44), both ends of the lead screw (18) can be rotatably mounted on both sides of the groove (15), a side shaft (19) is rotatably mounted at one end of the bed board (1), the side shaft (19) passes through the bed board (1) and is fixedly connected to the lead screw (18), a support plate (20) is fixedly mounted on the bed board (1), a linkage shaft (21) is rotatably mounted on the support plate (20), a second bevel gear (22) is fixedly mounted at one end of the linkage shaft (21), the second bevel gear (22) meshes with the first bevel gear (17), the linkage... A second belt mechanism (23) is installed between the moving shaft (21) and the side shaft (19). A turntable (24) is fixedly installed at the end of the side shaft (19). A base plate (25) is fixedly installed on the bed board (1). A top block (26) is provided at the upper end of the base plate (25). A wheel axle (27) is rotatably installed on the top block (26). A tension wheel (28) is fixedly installed at the end of the wheel axle (27). Two spaced vertical rods (2) are fixedly installed on the base plate (25). 9) The upper end of the vertical rod (29) passes through the top block (26). A spring (30) is sleeved on each of the vertical rods (29). The two ends of the spring (30) are fixedly connected to the bottom plate (25) and the top block (26) respectively. A pressure plate (31) is provided on the upper end of the top block (26). The pressure plate (31) is fixedly connected to the upper ends of the two vertical rods (29). The tension wheel (28) contacts the belt of the second belt mechanism (23) and puts the belt of the second belt mechanism (23) in a tensioned state. Adjust the rotation angle of the first lead plate (10) to adjust the protective height of the first lead plate (10); Rotate the turntable (24) to adjust the position of the second lead plate (13), while the first lead plate (10) remains fixed. The side shaft (19) rotates and drives the frame (12) to move along the direction of the guide rod (14), which can drive the second lead plate (13) on the frame (12) to move synchronously, thereby adjusting the position of the second lead plate (13) and thus protecting different positions on the back of the patient.

2. The CT examination auxiliary device according to claim 1, characterized in that, A cotton pad is placed on top of the bed board (1).

3. The CT examination auxiliary device according to claim 1, characterized in that, The support mechanism includes a bracket (7), two spaced slides (8) and two sliders (9). The bracket (7) is located at the lower end of the bed board (1). The two slides (8) are fixedly connected to the top of the bracket (7). The two sliders (9) are fixedly connected to the bottom ends of the bed board (1). The sliders (9) are slidably arranged in the slides (8).

4. The CT examination auxiliary device according to claim 1, characterized in that, The adjustment mechanism also includes two spaced inner plates (32), which are fixedly connected inside the frame (12). Each inner plate (32) has an opening (33) that penetrates it. A third lead plate (34) penetrates each inner plate (32). The two third lead plates (34) are symmetrically distributed vertically. A rack (35) is fixedly connected to the opposite side of each third lead plate (34). The racks (35) penetrate the openings (33). An inner shaft (36) is rotatably mounted inside the frame (12). One end of the inner shaft (36) penetrates the frame (12). A gear (37) is fixedly mounted on the inner shaft (36). The gear (37) interacts with two upper and lower gears. The inner shaft (36) is fixedly mounted with a pulley (38) at one end. A mounting seat (39) is provided on one side of the bed board (1). Two telescopic rods (40) are fixedly mounted on the bed board (1) at intervals. The output ends of the telescopic rods (40) are fixedly connected to the top of the mounting seat (39). Two belt shafts (41) are rotatably mounted on one side of the mounting seat (39). A third belt mechanism (42) is mounted on the two belt shafts (41). The belt of the third belt mechanism (42) is in contact with the pulley (38). A servo motor (43) is fixedly mounted on the mounting seat (39). The output shaft of the servo motor (43) is fixedly connected to the belt shaft (41) located on one side.

5. The CT examination auxiliary device according to claim 3, characterized in that, The inner surface of the slide (8) and the outer surface of the slider (9) are both polished.

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