Radiation protection device

Abstract

A radiation protection device disclosed by the present invention comprises a radiation diagnosis instrument and a diagnosis bed, the diagnosis bed is provided with a protection mechanism, the diagnosis bed comprises a sliding table, a bed body sliding part and a bed body lifting part, the sliding table is provided with a sliding rail, the bed body sliding part is installed in the sliding rail and is in sliding connection with the diagnosis bed, and the bed body lifting part is installed in the sliding rail. The bed body lifting part is installed at the front end of the bed body sliding part and rotationally connected with the bed body sliding part through a damping hinge, the protection mechanism comprises an installation base, fixing frames, a transmission plate and a fixing air bag, the installation base is fixedly installed at the front end of the bed body lifting part, the fixing frames are rotationally connected with the installation base, and the number of the fixing frames is two. The device has the advantages of being good in fixing effect, high in adaptability and easy and convenient to operate, and the problems that a traditional fixing mode is difficult to adapt to the specific sizes and shapes of the heads of different patients, needs customization and is high in cost, an existing fixing device needs manual adjustment, the operation process is tedious, and the workload of medical staff is increased are solved.

Description

Technical Field

[0001] The invention relates to the technical field of radiological diagnostic equipment, in particular to a radiation protection device. Background Art

[0002] Radiological diagnosis technology is an indispensable part of the medical field. It uses X-rays, CT scans and other means to obtain information about the internal structure of the human body. With the development of medical technology, radiological diagnostic equipment has become more and more advanced, but it also brings higher precision requirements. When performing radiological diagnosis on the patient's head, in order to obtain clear image results, it is necessary to ensure that the patient's body (especially the head) remains still. Any slight movement may cause the image to be blurred, thus affecting the diagnosis results.

[0003] There are some shortcomings in the diagnostic equipment currently available on the market. For example, they may not adapt well to heads of different sizes or shapes, or may cause discomfort to patients during the fixation process. In addition, the existing fixation devices may not be able to effectively isolate the noise generated by the equipment when it is working, which may cause the patient to be nervous and further affect the quality of diagnosis. The radiological diagnostic equipment will generate a certain amount of noise when it is running, which may increase the patient's nervousness and cause the patient to be uneasy during the diagnosis process, thereby affecting the smooth progress of the diagnosis. The existing fixation devices often require manual adjustment, and the operation process is cumbersome, which increases the workload of medical staff and may cause operational errors. Therefore, a radiation protection device is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a radiation protection device with the advantages of good fixing effect, strong adaptability and easy operation, which solves the problem that traditional fixing methods are difficult to adapt to the specific sizes and shapes of different patients' heads, need to be customized, are costly, and the existing fixing devices need manual adjustment, the operation process is relatively cumbersome, and the workload of medical staff is increased.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a radiation protection device, comprising a radiation diagnostic instrument and a diagnostic bed, wherein a protection mechanism is provided on the diagnostic bed; The diagnostic bed comprises a slide, a bed sliding part and a bed lifting part, the slide is provided with a slide rail, the bed sliding part is installed in the slide rail and is slidably connected to the diagnostic bed, and the bed lifting part is installed at the front end of the bed sliding part and is rotatably connected to the bed sliding part through a damping hinge; The protective mechanism includes a mounting base, a fixing frame, a transmission plate and a fixed airbag. The mounting base is fixedly mounted on the front end of the bed lifting part. The fixing frame is rotatably connected to the mounting base. There are two fixing frames. Two groups of the fixing frames are movably mounted on both sides of the transmission plate. The fixed airbag is detachably mounted on the upper end surfaces of the fixing frame and the transmission plate.

[0006] As a preferred radiation protection device of the present invention, the upper end surface of the mounting base is provided with an ear plate, the side end surface of the fixing frame is provided with a first rotating shaft cooperating with the ear plate, the side end surface edge of the fixing frame is provided with a second rotating shaft, the side end surface of the transmission plate is provided with a sliding groove movably cooperating with the second rotating shaft, and the fixing frame is an arc-shaped structure.

[0007] As a preferred radiation protection device of the present invention, the fixing frame is provided with a fixing rib, the fixing airbag is provided with a jacket matching the fixing rib, the fixing airbag is mounted on the fixing rib by the jacket and fixed thereto, and the upper end surface of the fixing airbag is provided with a soundproof earmuff, and the soundproof earmuff is made of soundproof cotton.

[0008] As a preferred radiation protection device of the present invention, the lower end face of the transmission plate is provided with a second piston rod, the upper end face of the second piston rod is provided with an air supply hole, the bottom of the fixed airbag is provided with a rubber hose connected to the air supply hole, the upper end face of the mounting base is provided with a second piston hole matching the second piston rod, the upper end face of the bed lifting part is provided with a second piston cavity corresponding to the position of the second piston hole, the second piston rod passes through the second piston hole and is inserted into the second piston cavity and is slidably connected to the bed lifting part.

[0009] As a preferred radiation protection device of the present invention, a first piston rod is provided on the lower end surface of the transmission plate, a first piston hole matching with the first piston rod is provided on the upper end surface of the mounting base, a first piston cavity matching with the first piston hole is provided in the bed lifting part, the first piston cavity is an L-shaped hollow cavity, a third piston rod is provided at the end of the first piston cavity away from the first piston rod, a piston head and a guide block are provided at the left and right ends of the third piston rod respectively, and hydraulic oil is filled between the first piston rod and the piston head.

[0010] As a preferred radiation protection device of the present invention, a vertical plate is provided at the edge of the slide rail, a guide tube is provided at the side end face of the vertical plate, a guide hole matching with the guide tube is provided at the front end face of the bed sliding part, an elastic traction rope is fixedly installed on the guide block, and the elastic traction rope passes through the guide tube and is fixedly connected to the vertical plate.

[0011] As a preferred radiation protection device of the present invention, the length of the guide tube is greater than the length of the bed sliding part, a limiting ring is arranged in the second piston chamber, the distance between the limiting ring and the bed sliding part is equal to the total length of the third piston rod, and the bottom of the side end surface of the guide block and the bed lifting part close to the bed sliding part is a slope structure.

[0012] As a preferred radiation protection device of the present invention, the front end surface of the guide tube is provided with a rotatably connected guide wheel, and the side surface of the guide wheel is provided with an annular wire groove.

[0013] As a preferred radiation protection device of the present invention, a motor is arranged in the sliding part of the bed, a gear is arranged on the output shaft of the motor, and a rack meshing with the gear is arranged in the slide rail.

[0014] As a preferred radiation protection device of the present invention, the fixing frame is provided with protective lead plates, the number of the protective lead plates is two, and the two groups of the protective lead plates are respectively provided with mutually cooperating card slots and card strips.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention firmly fixes the patient's head through a fixed airbag and a fixed frame. The fixed airbag can adapt to the head shape of different patients and be adjusted to the best fixed state by inflation. This design ensures the stability of the patient's head during the radiological diagnosis process, which not only improves the patient's comfort, but also greatly reduces the blurring phenomenon caused by slight movement of the head. The arc-shaped design of the fixed frame and its linkage mechanism with the transmission plate ensure that the fixed airbag can accurately wrap different areas of the patient's head and provide a uniform pressure distribution to achieve the best fixation effect. The built-in soundproof earmuffs of the fixed airbag are made of soundproof materials, which can effectively reduce the noise generated by the operation of the radiological diagnostic equipment, reduce the patient's psychological pressure, and avoid tension and anxiety that may cause the patient to move his head during the diagnosis process.

[0016] 2. The present invention uses a linkage mechanism among the first piston rod, the second piston rod, the third piston rod, the guide tube and the elastic traction rope, so that the movement of the sliding part of the bed can trigger the closing of the fixing frame and the inflation of the airbag, thereby automatically completing the fixation of the patient during detection and ensuring that the patient is correctly fixed during diagnosis. When the bed is reset, the device can automatically release the fixation and help the patient to slowly lift up, avoiding the patient from feeling uncomfortable due to sudden changes in posture after diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the protective mechanism and the diagnostic bed in coordination with each other of the present invention; Figure 3 An exploded view of the protection mechanism of the present invention; Figure 4 It is a front cross-sectional view of the protection mechanism of the present invention; Figure 5 It is a top view of the protective mechanism and the diagnostic bed of the present invention in cooperation state; Figure 6 For the present invention Figure 5 Middle AA section; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 It is a side sectional view of the diagnostic bed of the present invention in the initial state; Fig. 9 For the present invention Figure 8 Enlarged view of point C in the middle; Fig.10 It is a schematic diagram of the guide tube structure of the present invention; Fig.11 It is a front cross-sectional view of the diagnostic bed of the present invention; Fig.12 For the present invention Figure 3 Zoom in on D in the middle.

[0018] In the figure: 1. Radiographic diagnostic instrument; 2. diagnostic bed; 201. slide table; 2011. slide rail; 2012. guide tube; 2013. guide wheel; 2014. elastic traction rope; 2015. rack; 2016. vertical plate; 202. bed sliding part; 2021. damping hinge; 2022. guide hole; 203. bed lifting part; 2031. first piston chamber; 2032. limit ring; 2033. second piston chamber; 204. third piston rod; 2041. piston head; 2042. guide block; 205. motor; 2051. gear; 3. protective mechanism ; 301, mounting base; 3011, first piston hole; 3012, second piston hole; 3013, ear plate; 302, fixing frame; 3021, fixing rib; 3022, pull rod; 3023, protective lead plate; 30231, slot; 30232, clip strip; 3024, first rotating shaft; 3025, second rotating shaft; 303, transmission plate; 3031, first piston rod; 3032, second piston rod; 3033, air supply hole; 3034, slide groove; 304, fixed air bag; 3041, jacket; 3042, soundproof earmuffs; 3043, rubber hose. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 12 , a radiation protection device, comprising a radiation diagnostic apparatus 1 and a diagnostic bed 2, wherein a protection mechanism 3 is provided on the diagnostic bed 2; The diagnostic bed 2 comprises a slide 201, a bed sliding part 202 and a bed lifting part 203. The slide 201 is provided with a slide rail 2011. The bed sliding part 202 is installed in the slide rail 211 and is slidably connected to the diagnostic bed 2. The bed lifting part 203 is installed at the front end of the bed sliding part 202 and is rotatably connected to the bed sliding part 202 through a damping hinge 221. The protection mechanism 3 includes a mounting base 301, a fixing frame 302, a transmission plate 303 and a fixed airbag 304. The mounting base 301 is fixedly mounted at the front end of the bed lifting part 203. The fixing frame 302 is rotatably connected to the mounting base 301. There are two fixing frames 302. Two groups of fixing frames 302 are movably mounted on both sides of the transmission plate 303. The fixed airbag 304 is detachably mounted on the upper end surfaces of the fixing frame 302 and the transmission plate 303.

[0020] Furthermore, an ear plate 3013 is provided on the upper end surface of the mounting base 301, a first rotating shaft 3024 cooperating with the ear plate 3013 is provided on the side end surface of the fixing frame 302, a second rotating shaft 3025 is provided on the edge of the side end surface of the fixing frame 302, a sliding groove 3034 movably cooperating with the second rotating shaft 3025 is provided on the side end surface of the transmission plate 303, and the fixing frame 302 is an arc-shaped structure.

[0021] When the transmission plate 303 slides downward under downward pressure, the two sides of the transmission plate 303 pull the second rotating shaft 3025 on the fixing frame 302, so that the fixing frame 302 flips inward around the first rotating shaft 3024 under the action of the lever, thereby driving the fixing airbag 304 to move, clamp the patient's head, and complete the initial fixation of the patient's head.

[0022] Furthermore, a fixing rib 3021 is provided on the fixing frame 302, and a pull rod 3022 is provided on the fixing rib 3021, which can enhance the structural strength of the fixing rib 3021 and facilitate manual unfastening of the fixing frame 302. A jacket 3041 matching the fixing rib 3021 is provided on the fixing airbag 304, and the fixing airbag 304 is fixed to the fixing rib 3021 by the jacket 3041. A soundproof earmuff 3042 is provided on the upper end surface of the fixing airbag 304, and the soundproof earmuff 3042 is made of soundproof cotton.

[0023] A soundproof earmuff 3042 is provided on the upper end surface of the fixed airbag 304, so that when the fixed frame 302 is turned over in the box to wrap the patient's head, the soundproof earmuff 3042 can be mounted on the patient's ear plate 3013, thereby reducing the psychological impact of the noise generated by the equipment on the patient and improving the comfort of the equipment. The fixed airbag 304 is conveniently disassembled for replacement and cleaning through the cooperation of the jacket 3041 and the fixed rib 3021.

[0024] Furthermore, a second piston rod 3032 is provided on the lower end surface of the transmission plate 303, an air supply hole 3033 is provided on the upper end surface of the second piston rod 3032, a rubber hose 3043 connected to the air supply hole 3033 is provided on the bottom of the fixed airbag 304, a second piston hole 3012 matching the second piston rod 3032 is provided on the upper end surface of the mounting base 301, a second piston cavity 2033 corresponding to the position of the second piston hole 3012 is provided on the upper end surface of the bed lifting part 203, the second piston rod 3032 passes through the second piston hole 3012 and is inserted into the second piston cavity 2033 and is slidably connected to the bed lifting part 203.

[0025] When the transmission plate 303 slides downward, the second piston rod 3032 slides downward along the second piston chamber 2033, thereby pressing the air in the second piston chamber 2033 into the fixed airbag 304 through the air replenishing hole 3033, so that the fixed airbag 304 is inflated and the patient's head is clamped and fixed to prevent the patient's head from moving during the diagnosis process and affecting the accuracy of the diagnosis.

[0026] Furthermore, a first piston rod 3031 is provided on the lower end surface of the transmission plate 303, a first piston hole 3011 cooperating with the first piston rod 3031 is provided on the upper end surface of the mounting base 301, a first piston chamber 2031 cooperating with the first piston hole 3011 is provided in the bed lifting portion 203, the first piston chamber 2031 is an L-shaped hollow chamber, a third piston rod 204 is provided at the end of the first piston chamber 2031 away from the first piston rod 3031, a piston head 2041 and a guide block 2042 are provided at the left and right ends of the third piston rod 204, respectively, and hydraulic oil is filled between the first piston rod 3031 and the piston head 2041.

[0027] The first piston rod 3031 and the third piston rod 204 are both installed in the second piston chamber 2033, and hydraulic oil is filled between the first piston rod 3031 and the third piston, so that by pulling the third piston rod 204, the first piston is driven to move, and then the first piston drives the transmission plate 303 to move, thereby realizing the inflation and deflation of the fixed airbag 304 and the opening and closing of the fixed frame 302.

[0028] Furthermore, a vertical plate 2016 is provided at the edge of the slide rail 2011, a guide tube 2012 is provided on the side end face of the vertical plate 2016, a guide hole 2022 cooperating with the guide tube 2012 is provided on the front end face of the bed sliding part 202, and an elastic traction rope 2014 is fixedly installed on the guide block 2042, and the elastic traction rope 2014 passes through the guide tube 2012 and is fixedly connected to the vertical plate 2016.

[0029] When the bed sliding part 202 drives the bed lifting part 203 to slide away from the vertical plate 2016, the elastic traction rope 2014 is gradually tightened, thereby pulling the third piston rod 204. The third piston rod 204 pulls the first piston rod 3031 under the action of hydraulic pressure, so that the fixing frame 302 clamps the patient's head and inflates the airbag to clamp and fix the patient's head.

[0030] Furthermore, the length of the guide tube 2012 is greater than the length of the bed sliding part 202, a limit ring 2032 is arranged in the second piston chamber 2033, the distance between the limit ring 2032 and the bed sliding part 202 is equal to the total length of the third piston rod 204, and the bottom of the side end surface of the guide block 2042 and the bed lifting part 203 close to the bed sliding part 202 is a slope structure.

[0031] When the bed sliding part 202 is reset, the guide tube 2012 gradually approaches the third piston rod 204, and then squeezes the third piston rod 204 and presses it into the second piston chamber 2033 until the piston head 2041 of the third piston rod 204 contacts the limit ring 2032. During this process, the transmission part slides upward, so that the fixing frame 302 flips outward, releasing the fixation of the patient, and automatically releasing the fixation during the reset process of the equipment. Then, the guide tube 2012 continues to squeeze the bed lifting part 203, so that it flips upward along the damping hinge 2021 under the action of pressure, so that the patient is slowly lifted, thereby preventing the patient from dizziness and falling when sitting up by himself, thereby improving the protection performance of the equipment.

[0032] Furthermore, a rotatably connected guide wheel 2013 is disposed on the front end surface of the guide tube 2012 , and an annular wire groove is disposed on the side surface of the guide wheel 2013 .

[0033] The guide wheel 2013 reduces the friction between the guide block 2042 and the guide tube 2012, thereby improving the stability of the bed lifting part 203 while reducing equipment friction and increasing the service life of the equipment. The annular wire groove structure on the side wall of the guide wheel 2013 can guide the elastic traction rope 2014 and reduce the wear of the elastic traction rope 2014 during the extension and retraction process.

[0034] Furthermore, a motor 205 is disposed in the bed sliding part 202 , a gear 2051 is disposed on the output shaft of the motor 205 , and a rack 2015 meshing with the gear 2051 is disposed in the slide rail 2011 .

[0035] The motor 205 drives the gear 2051 to rotate, and the gear 2051 cooperates with the rack 2015 to make the bed sliding part 202 slide along the slide rail 2011, so as to drive the equipment diagnosis bed 2.

[0036] Furthermore, the fixing frame 302 is provided with two protective lead plates 3023 , and the two groups of protective lead plates 3023 are respectively provided with mutually cooperating card slots 30231 and card strips 30232 .

[0037] When the protective frame is flipped inward, the protective lead plate 3023 is placed on the patient's neck, thereby reducing the radiation received by healthy parts. The structure of the clamping strip 30232 and the clamping slot 30231 enables the protective lead plate 3023 to fit tightly when closed, reducing the gap in the protective lead plate 3023 and improving the stability of the fixing frame 302.

[0038] When the device is in use, the patient is guided to lie on the diagnostic bed 2 to ensure that the patient lies comfortably. The position is finely adjusted according to the patient's condition so that the patient's head is located directly above the fixed airbag 304. The control panel is operated to start the motor 205 to slide the bed slide 202 along the slide rail 2011 toward the direction of the radiological diagnostic instrument 1. As the bed slide 202 moves, the third piston rod 204 is pulled by the elastic traction rope 2014, thereby driving the first piston rod 3031, causing the first piston rod 3031 to pull the transmission plate 303 downward, and driving the second piston to slide into the second piston chamber 2033, pressing the air in the second piston chamber 2033 into the fixed airbag 304, causing the fixed airbag 304 to start to inflate. While the fixed airbag 304 is inflated, the fixed frame 302 is flipped inward around the first rotating shaft 3024 under the action of the lever to clamp and fix the patient's head. The fixed airbag 304 completely fits the patient's head. When the protective frame flips inward, the protective lead plate 3023 can be tightly fitted when closed, reducing the gap in the protective lead plate 3023 and reducing the radiation amount of the patient's neck. After the patient's head is fixed, the radiation diagnostic instrument 1 is started and irradiation is performed according to the pre-set diagnostic plan. After the diagnosis is completed, the radiation diagnostic instrument 1 is turned off to stop irradiation, and the control panel is operated to make the bed sliding part 202 move in the opposite direction. At this time, the third piston rod 204 is squeezed back into the second piston chamber 2033, the fixed airbag 304 is deflated, and the fixed frame 302 flips outward to release the fixation of the patient. After the fixed airbag 304 is completely deflated, the guide tube 2012 continues to squeeze the bed lifting part 203, causing it to flip upward along the damping hinge 2021 under pressure, thereby slowly lifting the patient, helping the patient to slowly get up from the diagnostic bed 2, and observing whether the patient has dizziness or other discomfort.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A radiation protection device, comprising a radiation diagnostic apparatus (1) and a diagnostic bed (2), characterized in that: The diagnostic bed (2) is provided with a protection mechanism (3); The diagnostic bed (2) comprises a slide table (201), a bed sliding part (202) and a bed lifting part (203); a slide rail (2011) is arranged on the slide table (201); the bed sliding part (202) is installed in the slide rail (2011) and is slidably connected to the diagnostic bed (2); the bed lifting part (203) is installed at the front end of the bed sliding part (202) and is rotationally connected to the bed sliding part (202) via a damping hinge (221); The protection mechanism (3) comprises a mounting base (301), a fixing frame (302), a transmission plate (303) and a fixed airbag (304); the mounting base (301) is fixedly mounted on the front end of the bed lifting portion (203); the fixing frame (302) is rotatably connected to the mounting base (301); there are two fixing frames (302); two groups of the fixing frames (302) are movably mounted on both sides of the transmission plate (303); and the fixed airbag (304) is detachably mounted on the upper end surfaces of the fixing frame (302) and the transmission plate (303).

2. A radiation protection device according to claim 1, characterized in that: The upper end surface of the mounting base (301) is provided with an ear plate (3013), the side end surface of the fixing frame (302) is provided with a first rotating shaft (3024) that cooperates with the ear plate (3013), the side end surface edge of the fixing frame (302) is provided with a second rotating shaft (3025), the side end surface of the transmission plate (303) is provided with a sliding groove (3034) that movably cooperates with the second rotating shaft (3025), and the fixing frame (302) is an arc-shaped structure.

3. A radiation protection device according to claim 2, characterized in that: The fixing frame (302) is provided with a fixing rib (3021), the fixing airbag (304) is provided with a jacket (3041) matched with the fixing rib (3021), the fixing airbag (304) is sleeved on the fixing rib (3021) by the jacket (3041) and fixed thereto, and a soundproof earmuff (3042) is provided on the upper end surface of the fixing airbag (304), and the soundproof earmuff (3042) is made of soundproof cotton.

4. A radiation protection device according to claim 1, characterized in that: The lower end surface of the transmission plate (303) is provided with a second piston rod (3032), the upper end surface of the second piston rod (3032) is provided with an air supply hole (3033), the bottom of the fixed airbag (304) is provided with a rubber hose (3043) which is connected to the air supply hole (3033), the upper end surface of the mounting base (301) is provided with a second piston hole (3012) which matches the second piston rod (3032), the upper end surface of the bed lifting part (203) is provided with a second piston cavity (2033) which corresponds to the position of the second piston hole (3012), and the second piston rod (3032) passes through the second piston hole (3012) and is inserted into the second piston cavity (2033) to be slidably connected to the bed lifting part (203).

5. A radiation protection device according to claim 4, characterized in that: The lower end surface of the transmission plate (303) is provided with a first piston rod (3031), the upper end surface of the mounting base (301) is provided with a first piston hole (3011) matched with the first piston rod (3031), and the bed lifting part (203) is provided with a first piston cavity (2031) matched with the first piston hole (3011), the first piston cavity (2031) is an L-shaped hollow cavity, the end of the first piston cavity (2031) away from the first piston rod (3031) is provided with a third piston rod (204), the left and right ends of the third piston rod (204) are respectively provided with a piston head (2041) and a guide block (2042), and the space between the first piston rod (3031) and the piston head (2041) is filled with hydraulic oil.

6. A radiation protection device according to claim 5, characterized in that: A vertical plate (2016) is arranged at the edge of the slide rail (2011), a guide tube (2012) is arranged on the side end surface of the vertical plate (2016), a guide hole (2022) cooperating with the guide tube (2012) is arranged on the front end surface of the bed sliding part (202), an elastic traction rope (2014) is fixedly installed on the guide block (2042), and the elastic traction rope (2014) passes through the guide tube (2012) and is fixedly connected to the vertical plate (2016).

7. A radiation protection device according to claim 6, characterized in that: The length of the guide tube (2012) is greater than the length of the bed sliding part (202); a limit ring (2032) is provided in the second piston chamber (2033); the distance between the limit ring (2032) and the bed sliding part (202) is equal to the total length of the third piston rod (204); and the bottom of the side end surface of the guide block (2042) and the bed lifting part (203) are inclined structures.

8. A radiation protection device according to claim 7, characterized in that: The front end surface of the guide tube (2012) is provided with a rotatably connected guide wheel (2013), and the side surface of the guide wheel (2013) is provided with an annular wire groove.

9. A radiation protection device according to claim 1, characterized in that: A motor (205) is arranged in the bed body sliding part (202); a gear (2051) is arranged on the output shaft of the motor (205); and a rack (2015) meshing with the gear (2051) is arranged in the slide rail (211).

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