A mobile CT scanning radiation protection apparatus

Abstract

This invention relates to the field of CT protection technology, specifically to a mobile CT scanning radiation protection device. The device includes a CT mechanism with a bed for patient movement, and further includes: a mobile protection mechanism mounted on the bed for patient protection; a protective frame mounted on the moving end of the mobile protection mechanism, containing a lead curtain; a lifting mechanism mounted on the bed for lifting the lead curtain during movement; and a cleaning mechanism mounted on the protective frame. The cleaning mechanism includes a cleaning component, a tensioning component, a liquid dispensing component, a self-locking component, a cleaning brush, and a round rod. The cleaning component is mounted on the protective frame, and the cleaning brush is installed inside the cleaning component. In this invention, a spray nozzle sprays disinfectant onto the cleaning brush. The cleaning brush adheres to one side of the lead curtain, while a plate abuts the other side of the lead curtain, limiting its position. This ensures the cleaning brush precisely adheres to the lead curtain and disinfects and cleans the side of the lead curtain that comes into contact with the patient.

Description

Technical Field

[0001] This invention relates to the field of CT protection technology, and more specifically to a mobile CT scanning radiation protection device. Background Technology

[0002] The CT scanner in a hospital is a medical imaging device that uses X-rays and computer technology to generate cross-sectional images of the human body. First, the person lies on the scanning bed, and then the person is sent into the CT machine via the scanning bed. The CT machine uses X-rays to image the person's body.

[0003] Chinese patent application CN218943373U discloses an adjustable CT protection device, including a bed panel and a protective middle plate disposed on the upper end of the bed panel. A protective front plate is disposed on the inner front side of the protective middle plate, and a protective rear plate is disposed on the inner rear side of the protective middle plate. The above-mentioned prior art effectively prevents large gaps between the protective front plate and the protective rear plate and the bed panel, which is conducive to improving the overall sealing and protection effect of the device, eliminating radiation safety hazards to patients, and ensuring the reliability of protection during CT scans.

[0004] To avoid a large gap between the protective equipment and the patient, which could cause X-rays to irradiate other parts of the patient's body that do not need to be scanned, the protective plate needs to be in close contact with the patient. However, hospital CT equipment is used frequently and comes into contact with many patients. This may result in bacteria and dust from patients' feet remaining on the protective equipment, thus affecting the overall hygiene of the CT equipment and potentially leading to infection among patients. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a radiation protection device for mobile CT scanning.

[0006] The technical solution of the present invention: A mobile CT scanning radiation protection device, comprising a CT mechanism, the CT mechanism being equipped with a bed for carrying the patient's movement, and further comprising:

[0007] Mobile protective equipment, which is installed on the bed to protect the patient's body;

[0008] The protective frame is installed on the moving end of the mobile protective mechanism and has lead curtains installed inside.

[0009] A lifting mechanism, installed on the bed frame, is used to lift the lead curtain when the protective mechanism is moved.

[0010] The cleaning unit is mounted on a protective frame.

[0011] The cleaning mechanism includes a cleaning component, a tensioning component, a liquid dispensing component, a self-locking component, a cleaning brush, and a round rod. The cleaning component is mounted on a protective frame, and the cleaning brush is mounted inside the cleaning component and slides on the lead curtain with the cleaning component. The round rod is rotatably connected to the protective frame and slidably connected to the tensioning component, which is mounted on the cleaning component and drives the cleaning brush to move when the cleaning component rises or falls. The liquid dispensing component is mounted on the protective frame with its dispensing end above the cleaning brush, and is used to spray disinfectant onto the cleaning brush. The self-locking component is mounted inside the protective frame and is used to lock the cleaning component after it rises. After the protective frame resets, the self-locking mechanism unlocks, the tensioning component drives the cleaning brush to adhere to the lead curtain, the liquid dispensing component sprays disinfectant onto the cleaning brush, and the cleaning component drives the disinfectant-sprayed cleaning brush to descend along the surface of the lead curtain.

[0012] Preferably, the tensioning assembly includes a limiting unit, a first plate, an adjusting groove, and a second plate;

[0013] Plate 1 is installed on the movable end of the cleaning component. An adjustment groove is opened on Plate 1. The adjustment groove is trapezoidal, and a round rod is slidably connected in the adjustment groove. There are two limiting units, both of which are installed in Plate 1. Plate 2 is elastically connected to Plate 1 and is located at the same height as the cleaning brush. Plate 2 is slidably connected to the protective frame and limits the lead curtain.

[0014] Preferably, the limiting unit includes an elastic element and a conical block;

[0015] One end of the elastic element three is installed in the adjustment groove, and the other end is connected to the conical block; the two conical blocks are located at the top and bottom of the adjustment groove; when the round rod moves upward in the adjustment groove, it passes the conical block and moves downward along the slope of the adjustment groove, causing the cleaning brush to be displaced.

[0016] Preferably, the cleaning component includes an elastic element one, a lifting part, an elastic element two, and a lifting frame;

[0017] One end of the elastic element is installed inside the protective frame, and the other end is installed with the lifting part. One end of the elastic element is connected to the lifting part, and the other end is installed with the lifting frame. The cleaning brush is rotatably connected inside the lifting frame.

[0018] Preferably, the liquid dispensing assembly includes an infusion device, a first tube, a second tube, a spray pipe, and a third tube;

[0019] The infusion device is installed at the top of the protective frame. Its input end is connected to pipe one and its output end is connected to pipe three. Two pipes two are connected to both ends of pipe three. The spray pipe is connected to the bottom end of pipe two and installed in the inner cavity of the lifting frame and above the cleaning brush. The disinfectant is delivered to pipe three through the infusion device and then to the two pipes two. It is then sprayed onto the cleaning brush through the spray pipe.

[0020] Preferably, the self-locking assembly includes elastic element four, trapezoidal element one, elastic element five, trapezoidal element two, triangular element, L-bar, and lifting block;

[0021] One end of the elastic element four is installed in the inner cavity of the upper part of the protective frame, and the other end is installed with trapezoidal element one; one end of the elastic element five is installed in the inner cavity of the upper part of the protective frame, and the other end is connected to trapezoidal element two; the triangular element is installed on trapezoidal element two and descends when pressed by the L-rod; the L-rod is installed above the bed and located on the moving path of trapezoidal element two; the lifting blocks are installed on both sides of the cleaning component, and the cleaning component is slidably connected to the protective frame through the lifting blocks; when the lifting blocks rise, the triangular element separates from the L-rod, and trapezoidal element two pushes trapezoidal element one into the lifting block, locking the lifting block at the high position.

[0022] Preferably, the lifting mechanism includes a cylinder, a coil spring, a rotating rod, a first rope, a second rope, a guard rod, and a drive assembly;

[0023] A cylinder is installed on the moving end of the mobile protective mechanism, and a coil spring is installed inside the cylinder. A rotating rod is installed at the center of the coil spring. One end of rope one is installed on the rotating rod, and the other end is connected to the moving end of the cleaning component and used to pull the cleaning brush back to its original position. One end of rope two is installed on the rotating rod, and the other end is connected to the lead curtain. A protective rod is installed on one side of the protective frame and blocks rope one and rope two. A drive component is installed on the mobile protective mechanism. The protective frame moves towards the center of the bed, and the rotating rod rotates to pull rope one and rope two, causing the cleaning component and lead curtain to rise.

[0024] Preferably, the drive assembly includes a soft snap ring, a flexible snap shaft, a spur gear shaft, a notched gear, and a gear ring;

[0025] The soft snap ring is connected to the rotating rod, and the elastic snap shaft is snapped into the soft snap ring and rotatably connected to one side of the protective frame; the gear ring is rotatably connected to the bed body; the spur gear shaft is installed on the elastic snap shaft and meshes with the gear ring; the notched gear is installed on the drive shaft of the moving protective mechanism; the notched gear and the spur gear shaft mesh intermittently; the notched gear drives the spur gear shaft to rotate, and the spur gear shaft drives the rotating rod to rotate, pulling rope one and rope two.

[0026] Preferably, the mobile protective mechanism includes a drive unit, a lead screw, a moving part, and a telescopic lead sheet;

[0027] The drive unit is mounted on the bed, and the output shaft of the drive unit is mounted on a lead screw, with a notched gear mounted on the lead screw. The moving part is threaded onto one of the lead screws and slidably connected to the smooth part of the other lead screw. One end of the telescopic lead cloth is mounted on the drive unit, and the other end is mounted on the CT mechanism. The other end of the telescopic lead cloth is fixed by the CT mechanism, and the telescopic lead cloth is stretched when the protective frame moves.

[0028] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects:

[0029] The patient lies on the bed. A lead screw rotates, moving two protective frames towards the patient at the center of the bed. Simultaneously, it drives a notched gear to rotate. The notched gear meshes with a spur gear shaft, causing the spur gear shaft to rotate. The spur gear shaft, through a soft locking ring and an elastic locking shaft, drives a rotating rod. As the rod rotates, it pulls ropes one and two, causing the lifting frame and lead curtain to rise. The lead curtain rises during this movement. When the protective frame reaches the designated position, the notch of the notched gear is positioned below the spur gear shaft, causing the shaft to disengage. At this point, the elasticity of the coil spring causes the rotating rod to release ropes one and two, allowing the lead curtain to descend and come into contact with the patient's body. This ensures that the lead curtain does not come into contact with the patient's body during its movement. Once the lead curtain reaches the designated position, it is lowered, preventing contact between the lead curtain and the patient's face or other body parts during movement, thus avoiding discomfort.

[0030] Furthermore, the lead curtain design prevents X-rays from passing through the gap between the protective frame and the patient's body and radiating to other areas that do not need to be scanned when the patient is being scanned by the CT equipment. It also ensures protection even when the protective frame is not in close contact with the patient.

[0031] When the rotating rod rotates, it also pulls the lifting frame upward. When the lifting frame rises to its highest point, the cylinders on both sides of the lifting frame are locked by the self-locking components. After the base scanning is completed, the moving seat drives the drive device to reset to the base. Then the lead screw drives the protective frame to reset. When the triangular piece contacts the L rod, the triangular piece is pressed down, which in turn drives the trapezoidal piece two to descend. Then, through the elasticity of the elastic piece four, the trapezoidal piece one is driven to reset towards the trapezoidal piece two, releasing the limit on the lifting block. Then, through the elasticity of the elastic piece one, the lifting part is driven to descend. At the same time, the spray pipe sprays disinfectant onto the cleaning brush. At this time, the cleaning brush is in contact with one side of the lead curtain, while the plate two blocks the other side of the lead curtain to limit the lead curtain, so that the cleaning brush is precisely in contact with the lead curtain and disinfects and cleans the side of the lead curtain that comes into contact with the patient.

[0032] By adjusting the groove, the cleaning brush fits tightly against the lead curtain when it descends and separates from it when it rises. This prevents the lead curtain above the cleaning brush from deforming due to the upward pressure of the cleaning brush and the second plate, which would prevent the lead curtain from being pulled up smoothly. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the lead screw structure proposed in this invention;

[0035] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0036] Figure 4 This is a schematic diagram of the spur gear shaft and gear ring proposed in this invention;

[0037] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0038] Figure 6 This is a schematic diagram of the structure of the rope and lead curtain proposed in this invention;

[0039] Figure 7 For the present invention Figure 6 Enlarged view of point C in the middle;

[0040] Figure 8 For the present invention Figure 6 Enlarged view of point D;

[0041] Figure 9 This is a schematic diagram of the lead screw and notched gear proposed in this invention;

[0042] Figure 10 For the present invention Figure 9 Enlarged view of point E in the middle;

[0043] Figure 11 For the present invention Figure 9 Enlarged diagram at point F;

[0044] Figure 12 This is a schematic diagram of the lifting frame and cleaning brush proposed in this invention;

[0045] Figure 13 This is a schematic diagram of the structure of the cleaning brush and plate two proposed in this invention;

[0046] Figure 14 This is a schematic diagram of the adjusting groove proposed in this invention;

[0047] Figure 15 For the present invention Figure 14 Enlarged diagram of point G in the middle;

[0048] Figure 16 For the present invention Figure 14 Enlarged diagram of point G in the middle.

[0049] Reference numerals: 1. Base; 2. CT equipment; 3. Movable seat; 4. Bed body; 5. Drive device; 6. Lead screw; 7. Moving part; 8. Protective frame; 9. Telescopic lead sheet; 10. Lead curtain; 11. Elastic component one; 12. Lifting part; 13. Elastic component two; 14. Lifting frame; 15. Cleaning brush; 16. Plate one; 17. Adjustment groove; 18. Elastic component three; 19. Conical block; 20. Round rod; 21. Infusion equipment; 22. Tube one; 23. 24. Spray pipe; 25. Elastic component four; 26. Trapezoidal component one; 27. Elastic component five; 28. Trapezoidal component two; 29. ​​Triangular component; 30. Cylinder; 31. Coil spring; 32. Rotating rod; 33. Rope one; 34. Rope two; 35. Soft snap ring; 36. Elastic snap shaft; 37. Spur gear shaft; 38. Notched gear; 39. Pipe three; 40. Gear ring; 41. L-shaped rod; 42. Guard rod; 43. Plate two; 44. Lifting block. Detailed Implementation

[0050] Example 1, as Figure 1-15 As shown, the present invention proposes a mobile CT scanning radiation protection device, which includes a CT mechanism, a mobile protection mechanism, a lifting mechanism, a cleaning mechanism and a protective frame 8. The CT mechanism is provided with a bed 4 for carrying the patient's movement.

[0051] The mobile protective mechanism is installed on bed 4 to protect the patient's body;

[0052] The protective frame 8 is installed on the moving end of the mobile protective mechanism, and a lead curtain 10 is installed inside it;

[0053] The lifting mechanism is installed on the bed frame 4 and is used to lift the lead curtain 10 when the moving protective mechanism is moved.

[0054] The cleaning unit is installed on the protective frame 8;

[0055] The cleaning mechanism includes a cleaning component, a tensioning component, a liquid dispensing component, a self-locking component, a cleaning brush 15, and a round rod 20. The cleaning component is mounted on the protective frame 8, and the cleaning brush 15 is mounted inside the cleaning component and slides on the lead curtain 10 with the cleaning component. The round rod 20 is rotatably connected inside the protective frame 8 and slidably connected inside the tensioning component. The tensioning component is mounted on the cleaning component and drives the cleaning brush 15 to move when the cleaning component rises or falls. The liquid dispensing component is mounted on the protective frame 8 with its dispensing end above the cleaning brush 15, and is used to spray disinfectant onto the cleaning brush 15. The self-locking component is mounted inside the protective frame 8 and is used to lock the cleaning component after it rises. After the protective frame 8 is reset, the self-locking mechanism is unlocked, the tensioning component drives the cleaning brush 15 to adhere to the lead curtain 10, the liquid dispensing component sprays disinfectant onto the cleaning brush 15, and the cleaning component drives the cleaning brush 15 sprayed with disinfectant to descend along the surface of the lead curtain 10.

[0056] The CT unit includes a base 1, a CT device 2, and a mobile base 3;

[0057] The mobile seat 3 is installed on the base 1, the CT equipment 2 is installed on one side of the base 1, and the bed 4 is installed on the mobile seat 3. When examining the patient's body, the patient lies on the bed 4, and then the patient's body is protected from radiation by the mobile protective mechanism. Then the mobile seat 3 drives the bed 4 to move toward the CT equipment 2, and the CT equipment 2 scans and images the patient's body on the bed 4.

[0058] The lead curtain 10 can be configured with multiple layers in an alternating pattern to improve protective performance; the lead curtain 10 can be made of lead fiber composite material to improve flexibility.

[0059] Since the lead curtain is placed from the top down inside the telescopic lead cloth, after the lead curtain 10 is lowered, it remains inside the telescopic lead cloth and will not affect the position where the patient needs to undergo an X-ray scan.

[0060] Furthermore, lead curtains of different lengths can be selected during use to ensure protective performance.

[0061] The tensioning assembly includes a limiting unit, plate 16, adjusting groove 17, and plate 2 43;

[0062] Plate 16 is installed on the movable end of the cleaning component. Adjustment groove 17 is opened on plate 16. Adjustment groove 17 is trapezoidal. Round rod 20 is slidably connected in adjustment groove 17. There are two limiting units, both of which are installed in plate 16. Plate 23 is elastically connected to plate 16 and is at the same height as cleaning brush 15. Plate 23 is slidably connected to protective frame 8 and limits lead curtain 10.

[0063] Plate 2 43 is slidably connected to the protective frame 8, so that when Plate 1 16 is raised and lowered and moves laterally, Plate 2 43 will not move laterally but will only be raised and lowered.

[0064] The limiting unit includes an elastic element 18 and a conical block 19;

[0065] One end of the elastic element 18 is installed in the adjustment groove 17, and the other end is connected to the conical block 19; the two conical blocks 19 are located at the top and bottom of the adjustment groove 17; when the round rod 20 moves upward in the adjustment groove 17, it passes the conical block 19 and moves downward along the inclined surface of the adjustment groove 17, causing the cleaning brush 15 to be displaced.

[0066] The elastic element 3 18 at the top of the adjusting groove 17 is installed obliquely inside the plate 16, and the elastic element 3 18 at the bottom of the adjusting groove 17 is installed vertically inside the plate 16; the conical block 19 is triangular.

[0067] When the lifting frame 14 descends, the round rod 20 rises within the cavity of the adjusting groove 17. When the lifting frame 14 descends to its lowest point, the round rod 20 passes over the longest inclined surface of the cone block 19 located at the top of the longest vertical end and fits against the top of the cone block 19. When the lifting frame 14 begins to rise, the round rod 20 descends within the cavity of the adjusting groove 17. At this time, the round rod 20 descends along the inclined surface at the top of the cone block 19 and the adjusting groove 17 to the shortest vertical section of the adjusting groove 17. When the lifting frame 14 rises to its highest point, the round rod 20 passes over the longest inclined surface of the cone block 19 located at the bottom end of the adjusting groove 17 and returns to the longest vertical section of the adjusting groove 17, ready for subsequent use.

[0068] The cleaning components include elastic element 11, lifting part 12, elastic element 2 13, and lifting frame 14;

[0069] One end of the elastic element 11 is installed inside the protective frame 8, and the other end is installed with the lifting part 12. One end of the elastic element 2 13 is connected to the lifting part 12, and the other end is installed with the lifting frame 14. The cleaning brush 15 is rotatably connected inside the lifting frame 14.

[0070] The liquid dispensing assembly includes infusion device 21, pipe one 22, pipe two 23, spray pipe 24, and pipe three 39;

[0071] The infusion device 21 is installed at the top of the protective frame 8. Its input end is connected to the first tube 22 and its output end is connected to the third tube 39. The two ends of the third tube 39 are respectively connected to the second tube 23. The spray pipe 24 is connected to the bottom end of the second tube 23 and installed in the inner cavity of the lifting frame 14 and located above the cleaning brush 15. The disinfectant is delivered to the second tube 23 through the infusion device 21 and then to the two second tubes 23 through the third tube 39. It is then sprayed onto the cleaning brush 15 through the spray pipe 24.

[0072] Pipe 1 22, pipe 2 23 and pipe 3 39 are all telescopic flexible hoses. Pipe 3 39 connects two pipes 2 23, so that the disinfectant delivery pipeline only needs to be connected to one pipe 1 22 to deliver the disinfectant to the two pipes 2 23.

[0073] Before use, connect the disinfectant delivery pipe to pipe 1 22. Then, when the cleaning brush 15 descends, start the infusion device 21 to deliver the disinfectant along pipe 1 22 to pipe 3 39 and pipe 2 23. Then, spray it onto the surface of the cleaning brush 15 through the spray pipe 24, thereby assisting the cleaning brush 15 in cleaning and disinfecting the lead curtain 10.

[0074] The self-locking assembly includes elastic element 4 25, trapezoidal element 1 26, elastic element 5 27, trapezoidal element 2 28, triangular element 29, L-bar 41 and lifting block 44;

[0075] One end of the elastic element 25 is installed in the inner cavity of the upper part of the protective frame 8, and the other end is installed with the trapezoidal element 26; one end of the elastic element 27 is installed in the inner cavity of the upper part of the protective frame 8, and the other end is connected to the trapezoidal element 28; the triangular element 29 is installed on the trapezoidal element 28 and descends when pressed by the L rod 41; the L rod 41 is installed above the bed 4 and located on the moving path of the trapezoidal element 28; the lifting block 44 is installed on both sides of the cleaning component, and the cleaning component is slidably connected to the protective frame 8 through the lifting block 44; when the lifting block 44 rises, the triangular element 29 separates from the L rod 41, and the trapezoidal element 28 pushes the trapezoidal element 26 into the lifting block 44, locking the lifting block 44 at a high position.

[0076] Rectangular holes are provided on both sides of the protective frame 8, and an insertion hole is provided in the middle of the lifting block 44. The lifting block 44 is a flexible body.

[0077] When the protective frame 8 moves toward the center of the bed body 4, the L-bar 41 separates from the triangular piece 29, releasing the restriction on the trapezoidal piece 28. Then, the elastic piece 5 27 releases its elasticity, causing the trapezoidal piece 28 to rise. The trapezoidal piece 28 then squeezes the trapezoidal piece 1 26 into the rectangular hole. When the lifting block 44 rises to the position of the trapezoidal piece 1 26, the lifting block 44, being a flexible body, passes over the trapezoidal piece 1 26. The trapezoidal piece 1 26 then inserts into the insertion hole of the lifting block 44, limiting the height of the lifting block 44. At this point, due to the insertion of the trapezoidal piece 1 26, the lifting block 44 can no longer descend.

[0078] When the scanning is completed and the protective frame 8 is reset, it drives the triangular piece 29 to move towards the L rod 41. When the triangular piece 29 contacts the L rod 41, it is pressed down by the L rod 41, which causes the triangular piece 29 to drive the trapezoidal piece 28 to descend. Then, through the pulling force of the elastic piece 4 25, the trapezoidal piece 26 is pulled back into the inner cavity of the protective frame 8. The trapezoidal piece 26 leaves the insertion hole of the lifting block 44, releasing the limit of the lifting block 44.

[0079] Example 2, as Figures 1-7 As shown, the mobile CT scanning radiation protection device proposed in this invention, compared with Embodiment 1, has a lifting mechanism that includes a cylinder 30, a coil spring 31, a rotating rod 32, a first rope 33, a second rope 34, a protective rod 42, and a driving assembly.

[0080] A cylinder 30 is installed on the moving end of the mobile protective mechanism, a coil spring 31 is installed inside the cylinder 30, and a rotating rod 32 is installed at the center of the coil spring 31; one end of rope 33 is installed on the rotating rod 32, and the other end is connected to the moving end of the cleaning component and used to pull the cleaning brush 15 to reset; one end of rope 34 is installed on the rotating rod 32, and the other end is connected to the lead curtain 10; a protective rod 42 is installed on one side of the protective frame 8 and blocks ropes 33 and 34; a drive component is installed on the mobile protective mechanism; the protective frame 8 moves toward the center of the bed 4, and the rotating rod 32 rotates to pull ropes 33 and 34, causing the cleaning component and the lead curtain 10 to rise.

[0081] The drive assembly includes a soft snap ring 35, a flexible snap shaft 36, a spur gear shaft 37, a notched gear 38, and a gear ring 40;

[0082] The soft snap ring 35 is connected to the rotating rod 32, and the elastic snap shaft 36 is snapped into the soft snap ring 35 and rotatably connected to one side of the protective frame 8; the gear ring 40 is rotatably connected inside the bed 4; the spur gear shaft 37 is installed on the elastic snap shaft 36 and meshes with the gear ring 40; the notched gear 38 is installed on the drive shaft of the moving protective mechanism; the notched gear 38 and the spur gear shaft 37 mesh intermittently; the notched gear 38 drives the spur gear shaft 37 to rotate, and the spur gear shaft 37 drives the rotating rod 32 to rotate, pulling rope one 33 and rope two 34.

[0083] Once the patient is lying on the bed 4, the drive device 5 is activated, causing the lead screw 6 to rotate. Simultaneously, the notched gear 38 rotates. At this time, due to the difference in the number of teeth between the notched gear 38 and the spur gear shaft 37, the notched gear 38 can accelerate the rotation of the spur gear shaft 37.

[0084] During the movement of the protective frame 8, if the notch of the notched gear 38 is located at the spur gear shaft 37, the rotational speed of the notched gear 38 will cause the notched gear 38 to quickly mesh with the spur gear shaft 37 again, thus preventing the spur gear shaft 37 from fully resetting.

[0085] After the protective frame 8 is moved to the designated position, it can be slightly adjusted so that the notch of the notched gear 38 is located below the spur gear shaft 37, causing the spur gear shaft 37 to lose engagement. Then, the elasticity of the coil spring 31 drives the rotating rod 32 to rotate, releasing rope one 33 and rope two 34, causing the lead curtain 10 to fall.

[0086] If one of the protective frames 8 needs to move a long distance, when the lead curtain 10 has been pulled to the top and the cleaning brush 15 has risen to the highest point, the flexibility of the soft snap ring 35 allows the elastic snap shaft 36 to pass over the soft snap block inside the soft snap ring 35, and will no longer drive the rotating rod 32 to rotate.

[0087] Furthermore, in order to ensure that the notch of the notched gear 38 is located at the spur gear shaft 37 after the protective frame 8 is moved to the designated position, multiple notches can be made on the notched gear 38.

[0088] A high-resistance spring, such as a high-damping rubber spring, can be installed inside the elastic snap-fit ​​shaft 36. When the pressure on this type of spring is below the threshold, it maintains rigid support. If the pressure exceeds the threshold, it will deform. The two ends of the high-resistance spring are respectively connected to the inner cavity of the elastic snap-fit ​​shaft 36 and the tapered body on the outside of the elastic snap-fit ​​shaft 36.

[0089] During normal operation, the high-resistance spring will not affect normal use. Only when the soft snap ring 35 stops moving and the cone on the elastic snap shaft 36 is subjected to sufficient pressure will it retract and pass over the soft snap block inside the soft snap ring 35.

[0090] Example 3, as Figures 1-6 As shown, the mobile radiation protection device for CT scanning proposed in this invention, compared with Embodiment 2, the mobile protection mechanism of this embodiment includes a driving device 5, a lead screw 6, a moving part 7, and a telescopic lead cloth 9;

[0091] The drive device 5 is installed on the bed 4. The output shaft of the drive device 5 is mounted on the lead screw 6, and the notched gear 38 is mounted on the lead screw 6. The moving part 7 is threaded onto the lead screw 6 and slidably connected inside the bed 4. One end of the telescopic lead cloth 9 is installed on the drive device 5, and the other end is installed on the CT mechanism. The other end of the telescopic lead cloth 9 is fixed by the CT mechanism. When the protective frame 8 moves, it pulls the telescopic lead cloth 9 to extend.

[0092] By activating two drive devices 5 to rotate two lead screws 6, the two lead screws 6 drive two protective frames 8 to move respectively, and the moving distance of each protective frame 8 is different, so that radiation protection can be provided to different parts of the patient's body.

[0093] Elastic component 2 (13), elastic component 3 (18), elastic component 4 (25), and elastic component 5 (27) are all composed of spring 1 and telescopic rod. Elastic component 1 (11) is composed of spring 2 and positioning rod, and the positioning rod is movably sleeved inside the protective frame 8.

[0094] like Figure 5 As shown, support rings are installed on both sides of the protective frame 8, and the elastic snap-fit ​​shaft 36 is movably sleeved in the support ring, so that the protective frame 8 can pull the spur gear shaft 37 to move when it moves.

[0095] In summary, in this invention, the patient lies on the bed 4, and then the drive device 5 is activated to rotate the lead screw 6. The rotation of the lead screw 6 drives the moving part 7, which is threadedly engaged with it, to move along the lead screw 6. Thus, the lead screw 6 drives the two protective frames 8 to move different distances respectively, providing radiation protection for other parts of the patient's body that do not need to be scanned.

[0096] When the lead screw 6 rotates, it drives the notched gear 38 to rotate. When the protective frame 8 moves, it pulls the spur gear shaft 37 to move. At this time, through the meshing of the notched gear 38 and the spur gear shaft 37, the rotating rod 32 is driven to rotate, and the coil spring 31 is contracted to store force. The rotating rod 32 rotates and pulls the first rope 33 and the second rope 34 to coil up. The second rope 34 pulls the lead curtain 10 upward, the first rope 33 pulls the lifting frame 14 upward, and the lead curtain 10 is pulled upward. This prevents the lead curtain 10 from contacting the patient's face when the protective frame 8 moves towards the patient, thus avoiding discomfort for the patient.

[0097] When the protective frame 8 moves toward the center of the bed body 4, the L rod 41 separates from the triangular piece 29, causing the trapezoidal piece 28 to rise and push the trapezoidal piece 26 into the rectangular hole of the protective frame 8.

[0098] When rope 33 pulls the lifting frame 14 upward, it is slidably connected to the adjusting groove 17 through the round rod 20, so that the rising cleaning brush 15 is separated from the lead curtain 10, avoiding the cleaning brush 15 from sticking tightly to the lead curtain 10, which would cause the upper part of the lead curtain 10 to be squeezed and deformed.

[0099] When the lifting frame 14 rises to the top, the lifting block 44 is inserted by the trapezoidal component 26, which limits the lifting block 44 and thus limits the height of the lifting frame 14.

[0100] After the protective frame 8 is moved to the designated position, the notched gear 38 can be finely adjusted so that the notch of the notched gear 38 is located at the spur gear shaft 37. After the spur gear shaft 37 is disengaged, the elasticity of the coil spring 31 drives the rotating rod 32 to rotate, releasing rope one 33 and rope two 34, thereby causing the lead curtain 10 to fall on the patient's body, thus protecting the gap between the protective frame 8 and the patient, and working together with the protective frame 8 and the telescopic lead cloth 9 to provide overall radiation protection for the patient's body.

[0101] The patient's body is then moved into the CT scanner 2 via the movable seat 3.

[0102] After the inspection, the lead screw 6 rotates in the opposite direction, driving the protective frame 8 to reset. At this time, the notched gear 38 meshes with the spur gear shaft 37 again, thereby driving the rotating rod 32 to rotate again, and then pulling up the lead curtain 10 through the second rope 34. This avoids the lead curtain 10 from contacting the patient's face or other body parts during the reset process of the protective frame 8, thus preventing discomfort to the patient.

[0103] When the triangular piece 29 contacts the L-bar 41, the triangular piece 29 is pressed down by the L-bar 41, thereby causing the trapezoidal piece 28 to descend. Then, through the elastic piece 4 25, the trapezoidal piece 26 returns to the protective frame 8, releasing the limit on the lifting block 44. At this time, the elasticity of the elastic piece 11 causes the lifting frame 14 to descend. Then, through the guide of the adjusting groove 17, the descending cleaning brush 15 is tightly closed, so that the lifting frame 14 drives the cleaning brush 15 to descend along the lead curtain 10 to disinfect and clean the lead curtain 10.

[0104] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A mobile CT scanning radiation protection device, comprising a CT mechanism, wherein the CT mechanism is provided with a bed (4) for carrying the patient's movement, characterized in that, Also includes: A mobile protective device, which is installed on the bed (4) to protect the patient's body; The protective frame (8) is installed on the moving end of the mobile protective mechanism and has a lead curtain (10) installed inside. A lifting mechanism is installed on the bed body (4) to lift the lead curtain (10) when the moving protective mechanism moves. A cleaning unit, which is installed on a protective frame (8); The cleaning mechanism includes a cleaning component, a tensioning component, a liquid dispensing component, a self-locking component, a cleaning brush (15), and a round rod (20). The cleaning component is mounted on the protective frame (8), and the cleaning brush (15) is mounted inside the cleaning component and slides on the lead curtain (10) along with the cleaning component. The round rod (20) is rotatably connected inside the protective frame (8) and slidably connected inside the tensioning component. The tensioning component is mounted on the cleaning component and drives the cleaning brush (15) to move when the cleaning component is raised or lowered. The liquid dispensing component is mounted on the protective frame (8) with the liquid dispensing end located above the cleaning brush (15) for spraying disinfectant onto the cleaning brush (15). The self-locking component is installed... Inside the protective frame (8), the cleaning component is locked after it rises; after the protective frame (8) is reset, the self-locking mechanism is unlocked, the tensioning component drives the cleaning brush (15) to adhere to the lead curtain (10), the liquid dispensing component sprays disinfectant onto the cleaning brush (15), and the cleaning component drives the cleaning brush (15) sprayed with disinfectant to descend along the surface of the lead curtain (10); the pulling mechanism includes a cylinder (30), a coil spring (31), a rotating rod (32), rope one (33), rope two (34), a protective rod (42), and a drive component; the moving protective mechanism includes a drive device (5), a lead screw (6), a moving part (7), and a telescopic lead cloth (9).

2. The mobile CT scanning radiation protection device according to claim 1, characterized in that, The tensioning assembly includes a limiting unit, plate one (16), adjusting groove (17), and plate two (43); Plate 1 (16) is installed on the movable end of the cleaning component. Adjustment groove (17) is opened on plate 1 (16). Adjustment groove (17) is trapezoidal. Round rod (20) is slidably connected in adjustment groove (17). There are two limiting units, both of which are installed in plate 1 (16). Plate 2 (43) is elastically connected to plate 1 (16) and is at the same height as cleaning brush (15). Plate 2 (43) is slidably connected to protective frame (8) and limits lead curtain (10).

3. The mobile CT scanning radiation protection device according to claim 2, characterized in that, The limiting unit includes an elastic element three (18) and a conical block (19); One end of the elastic element three (18) is installed in the adjustment groove (17), and the other end is connected to the conical block (19); the two conical blocks (19) are located at the top and bottom of the adjustment groove (17); when the round rod (20) moves upward in the adjustment groove (17), it passes the conical block (19) and moves downward along the slope of the adjustment groove (17), causing the cleaning brush (15) to be displaced.

4. The mobile CT scanning radiation protection device according to claim 1, characterized in that, The cleaning components include elastic element one (11), lifting part (12), elastic element two (13) and lifting frame (14). One end of the elastic element (11) is installed inside the protective frame (8), and the other end is installed with the lifting part (12). One end of the elastic element (13) is connected to the lifting part (12), and the other end is installed with the lifting frame (14). The cleaning brush (15) is rotatably connected inside the lifting frame (14).

5. The mobile CT scanning radiation protection device according to claim 1, characterized in that, The liquid dispensing assembly includes an infusion device (21), pipe one (22), pipe two (23), a spray pipe (24) and pipe three (39). The infusion device (21) is installed at the top of the protective frame (8), with the input end of the device connected to the first tube (22) and the output end connected to the third tube (39); the two ends of the third tube (39) are connected to the second tube (23); the spray pipe (24) is connected to the bottom end of the second tube (23) and installed in the inner cavity of the lifting frame (14) and located above the cleaning brush (15); the disinfectant is delivered through the infusion device (21) to the third tube (39) and then to the two second tubes (23), and then sprayed onto the cleaning brush (15) along with the spray pipe (24).

6. The mobile CT scanning radiation protection device according to claim 1, characterized in that, The self-locking assembly includes elastic element four (25), trapezoidal element one (26), elastic element five (27), trapezoidal element two (28), triangular element (29), L-bar (41) and lifting block (44). One end of the elastic element four (25) is installed in the inner cavity of the upper part of the protective frame (8), and the other end is installed with trapezoidal element one (26); one end of the elastic element five (27) is installed in the inner cavity of the upper part of the protective frame (8), and the other end is connected to trapezoidal element two (28); the triangular element (29) is installed on the trapezoidal element two (28) and descends when pressed by the L rod (41); the L rod (41) is installed above the bed (4) and is located on the moving path of the trapezoidal element two (28); the lifting block (44) is installed on both sides of the cleaning component, and the cleaning component is slidably connected to the protective frame (8) through the lifting block (44); when the lifting block (44) rises, the triangular element (29) separates from the L rod (41), and the trapezoidal element two (28) pushes the trapezoidal element one (26) to insert into the lifting block (44), locking the lifting block (44) at a high position.

7. The mobile CT scanning radiation protection device according to claim 1, characterized in that, The lifting mechanism includes a cylinder (30), a coil spring (31), a rotating rod (32), a first rope (33), a second rope (34), a protective rod (42), and a drive assembly; A cylinder (30) is installed on the moving end of the mobile protective mechanism, a coil spring (31) is installed inside the cylinder (30), and a rotating rod (32) is installed at the center of the coil spring (31); one end of rope one (33) is installed on the rotating rod (32), and the other end is connected to the moving end of the cleaning component and used to pull the cleaning brush (15) to reset; one end of rope two (34) is installed on the rotating rod (32), and the other end is connected to the lead curtain (10); a protective rod (42) is installed on one side of the protective frame (8) and blocks rope one (33) and rope two (34); a drive component is installed on the mobile protective mechanism; the protective frame (8) moves toward the center of the bed (4), and the rotating rod (32) rotates to pull rope one (33) and rope two (34) so ​​that the cleaning component and the lead curtain (10) are pulled up.

8. A mobile CT scanning radiation protection device according to claim 7, characterized in that, The drive assembly includes a soft snap ring (35), a flexible snap shaft (36), a spur gear shaft (37), a notched gear (38), and a gear ring (40); The soft snap ring (35) is connected to the rotating rod (32), and the elastic snap shaft (36) is snapped into the soft snap ring (35) and rotatably connected to one side of the protective frame (8); the toothed ring (40) is rotatably connected inside the bed (4); the spur gear shaft (37) is installed on the elastic snap shaft (36) and meshes with the toothed ring (40); the notched gear (38) is installed on the drive shaft of the moving protective mechanism; the notched gear (38) and the spur gear shaft (37) mesh intermittently; the notched gear (38) drives the spur gear shaft (37) to rotate, and the spur gear shaft (37) drives the rotating rod (32) to rotate, pulling rope one (33) and rope two (34).

9. A mobile CT scanning radiation protection device according to claim 8, characterized in that, The mobile protective mechanism includes a drive unit (5), a lead screw (6), a moving part (7), and a telescopic lead sheet (9). The drive device (5) is installed on the bed (4), the output shaft of the drive device (5) is mounted on the lead screw (6), and the notched gear (38) is mounted on the lead screw (6); the moving part (7) is threaded on one of the lead screws (6) and slidably connected to the smooth part of the other lead screw (6); one end of the telescopic lead cloth (9) is mounted on the drive device (5), and the other end is mounted on the CT mechanism; the other end of the telescopic lead cloth (9) is fixed by the CT mechanism, and the telescopic lead cloth (9) is stretched when the protective frame (8) moves.

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