CN118892329A - Auxiliary device for CT in radiology for medical diagnosis - Google Patents

Abstract

The invention relates to the technical field of medical auxiliary instruments, and discloses an auxiliary device for a radiology department CT for medical diagnosis, which comprises a bed plate, a supporting pad and a headrest, wherein the supporting pad and the headrest are arranged at the top of the bed plate, a limiting fixing component penetrating through the top of the bed plate and extending to two sides of the headrest is arranged at the bottom of the bed plate, a waist fixing component penetrating through the top of the bed plate and extending to the upper part of the supporting pad is arranged at the bottom of the bed plate, and a clamping component extending to the rear side of the waist fixing component is arranged in the waist fixing component. This auxiliary device for radiology department CT for medical diagnosis has ensured that patient's head is located the scanning center, has effectively restricted patient's body and has moved in the scanning process, has avoided the condition that reduces the diagnosis accuracy because of patient's body removes, has improved the reliability of scanning, effectively shelter from the position that the patient need not to detect, has improved patient's security, has made things convenient for the user to use.

Description

Auxiliary device for CT in radiology for medical diagnosis

Technical Field

The present invention relates to the technical field of medical auxiliary equipment, and in particular to an auxiliary device for CT in the radiology department for medical diagnosis.

Background Art

After searching, the Chinese patent publication number is CN220025068U, which discloses an auxiliary device for medical diagnosis of radiology CT, including a bed board, and a fixing mechanism for the radiology auxiliary device is installed on the top of the bed board, and the fixing mechanism includes a support plate, a threaded through hole, a threaded rod, a rotating handle, a connecting plate, a guide rod, a support spring, a clamping block, and a protective pad. When the technical solution is in use, it is controlled by rotating the handles on both sides so that the two clamping blocks drive the protective pad to limit and fix the patient's head. However, when the structure is in use, the current design relies on medical personnel to manually rotate the handles on both sides to drive the clamping blocks to clamp and fix. This process is not only cumbersome to operate, but also difficult to ensure that the head position is located at the scanning center, which may cause deviations to affect the imaging quality and diagnostic accuracy, and the practicality is poor. When the device is in use, it lacks a structure for limiting and fixing the patient's body position, which makes it easy to reduce the accuracy of the diagnosis due to the movement of the patient's body during the detection process, and cannot meet the use requirements. Therefore, an auxiliary device for medical diagnosis of radiology CT is proposed to solve the above-mentioned problems.

Summary of the invention

1. Technical issues to be solved

In view of the deficiencies in the prior art, the present invention provides an auxiliary device for radiology CT for medical diagnosis, which has the advantages of being able to effectively facilitate medical personnel to limit and fix patients and effectively improve the accuracy of detection and diagnosis, thereby solving the problems raised in the above-mentioned background technology.

(II) Technical solution

In order to achieve the above-mentioned purpose of effectively facilitating medical personnel to limit and fix patients and effectively improve the accuracy of detection and diagnosis, the present invention provides the following technical solutions: an auxiliary device for radiology CT for medical diagnosis, comprising a bed board, a support cushion and a headrest, wherein the support cushion and the headrest are arranged on the top of the bed board, the bottom of the bed board is provided with a limit fixing component that penetrates to the top and extends to both sides of the headrest, the bottom of the bed board is provided with a waist fixing component that penetrates to the top and extends above the support cushion, the inside of the waist fixing component is provided with a clamping component that extends to the rear side thereof, and the outside of the bed board is provided with a moving protection component that extends above it and is located on the right side of the waist fixing component;

The limit fixing assembly includes a fixing frame, which is fixedly installed on the bottom of the bed board, a threaded rod is rotatably installed inside the fixing frame, the rear side of the threaded rod passes through the rear side of the fixing frame and is fixedly installed with a hand wheel, guide rods located on both sides of the threaded rod are fixedly installed inside the fixing frame, two threaded blocks are threadedly installed on the outer side of the threaded rod and are sleeved on the outer side of the guide rod, an extension frame that passes through the top of the bed board is fixedly installed on the top of the threaded block, and limit plates located on both sides of the headrest are fixedly installed on opposite sides of the two extension frames, and a limit pad is fixedly installed on the side of the limit plate close to the headrest.

Preferably, the waist fixing assembly includes a mounting frame, which is fixedly mounted on the bottom of the bed board, and the bottom of the mounting frame is movably mounted with two rack blocks that extend to the top of the rack block and extend to the top of the bed board, and the top of the rear rack block is rotatably mounted with a limit frame that fits with the front rack block, a protective pad is fixedly mounted on the inner side of the limit frame, and the top of the limit frame is threadedly mounted with a locking stud that is threadedly connected to the front rack block.

Preferably, the locking assembly includes a rotating shaft, two of which are rotatably installed in the mounting frame, gears meshing with two rack blocks being fixedly installed on the outer sides of the two rotating shafts, a ratchet located on the right side of the gear being fixedly installed on the outer sides of the rotating shafts, a locking frame located on the rear side of the ratchet being fixedly installed inside the mounting frame, a movable plate being movably installed inside the locking frame, a locking plate engaging with the ratchet being fixedly installed on the front side of the movable plate, a pull-out rod fixedly connected to the movable plate being movably installed between the two locking frames, the rear side of the pull-out rod passes through the rear side of the mounting frame and is fixedly connected to a first pull ring, a support plate which is sleeved on the outer side of the pull-out rod is fixedly installed inside the mounting frame, a baffle is fixedly installed on the outer side of the pull-out rod, and a support spring which is sleeved on the outer side of the pull-out rod is fixedly installed between the baffle and the support plate.

Preferably, the movable protection assembly includes fixed slide rails, there are two fixed slide rails and they are fixedly installed on the front and rear sides of the bed board, a protective cover slidably connected to the two fixed slide rails is movably installed on the outer side of the bed board, lead curtains are movably installed on both sides of the protective cover, a connecting frame is fixedly installed on the rear side of the protective cover, a pin extending to the outside and engaging with the fixed slide rails is movably installed inside the connecting frame, the rear side of the pin passes through the outside of the connecting frame and is fixedly connected to a second pull ring, an auxiliary plate engaged with the inner wall of the connecting frame is fixedly installed on the outer side of the pin, and a limit spring sleeved on the outside of the pin is fixedly installed between the auxiliary plate and the inner wall of the connecting frame.

Preferably, the outer side of the threaded rod is provided with two sections of threads in opposite directions and equal lengths, the interior of the threaded block is fixedly installed with a threaded sleeve which is sleeved on the outer side of the threaded rod and threadedly connected thereto, and the interior of the bed board is provided with a through hole which is compatible with the moving trajectory of the extension frame.

Preferably, the mounting frame and the bed board are both provided with through holes adapted to the rack block, a pulling handle is fixedly installed on the top of the limit frame, a rotating block is fixedly installed on the top of the locking stud, and a threaded groove adapted to the locking stud is provided inside the front rack block.

Preferably, an auxiliary spring is fixedly installed between the movable plate and the inner wall of the locking frame and is sleeved on the outside of the pull-out rod. The inner wall of the locking frame is provided with an extension hole that is compatible with the locking plate. The inner wall of the locking frame and the inside of the support plate are both provided with round holes that are compatible with the pull-out rod.

Preferably, a slide groove matched with the fixed slide rail is opened on the inner side of the protective cover, a lead rubber layer is fixedly installed on the inner side of the protective cover, and the lead curtain is attached to the outer side of the protective cover.

Preferably, the fixed slide rail is provided with a socket adapted to fit the latch, and the number of the sockets is several and is distributed at equal distances.

(III) Beneficial effects

Compared with the prior art, the present invention provides an auxiliary device for medical diagnosis of radiology CT, which has the following beneficial effects:

1. The auxiliary device for CT in the radiology department for medical diagnosis enables medical staff to easily adjust and fix the position of the patient's head by setting the limit fixing component, thereby reducing the operation trouble of the medical staff and ensuring that the patient's head is located in the scanning center, reducing the degradation of imaging quality and diagnostic errors caused by position deviation.

2. The auxiliary device for CT in the radiology department for medical diagnosis effectively limits the patient's body movement during the scanning process by setting up a waist fixing component, a locking component and a mobile protection component, avoiding the situation where the diagnostic accuracy is reduced due to the patient's body movement, and improving the reliability of the scan. The lead curtain in the mobile protection component and the lead rubber layer inside the protective cover effectively shield the parts of the patient that do not need to be detected, blocking scattered X-rays, thereby improving the patient's safety and facilitating use by the user.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective schematic diagram of the overall structure of a radiology CT auxiliary device for medical diagnosis proposed by the present invention;

FIG2 is a side perspective schematic diagram of the overall structure of a radiology CT auxiliary device for medical diagnosis proposed by the present invention;

FIG3 is a perspective schematic diagram of a structural limiting and fixing assembly of a radiology CT auxiliary device for medical diagnosis proposed by the present invention;

FIG4 is a perspective schematic diagram of a waist fixing assembly of a structure of an auxiliary device for medical diagnosis and radiology CT provided by the present invention;

FIG5 is a three-dimensional schematic diagram of the connection between the waist fixing component and the clamping component of the auxiliary device structure for CT in the radiology department for medical diagnosis proposed by the present invention;

FIG6 is a perspective schematic diagram of a structural engaging assembly of a radiology CT auxiliary device for medical diagnosis proposed by the present invention;

FIG. 7 is a three-dimensional schematic diagram of a mobile protective assembly of an auxiliary device structure for a radiology CT for medical diagnosis proposed by the present invention.

In the figure: 1, bed board; 2, support pad; 3, headrest; 4, limit fixing assembly; 41, fixing frame; 42, threaded rod; 43, hand wheel; 44, guide rod; 45, threaded block; 46, extension frame; 47, limit plate; 48, limit pad; 5, waist fixing assembly; 51, installation frame; 52, rack block; 53, limit frame; 54, protective pad; 55, locking stud; 6, clamping assembly; 61, rotation Axle; 62, gear; 63, ratchet; 64, locking frame; 65, movable plate; 66, locking plate; 67, pull-out rod; 68, first pull ring; 69, support plate; 610, baffle; 611, support spring; 7, mobile protection assembly; 71, fixed slide rail; 72, protective cover; 73, lead curtain; 74, connecting frame; 75, latch; 76, second pull ring; 77, auxiliary plate; 78, limit spring.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Please refer to Figures 1-7, an auxiliary device for medical diagnosis and radiology CT includes a bed board 1, a support pad 2 and a headrest 3, the support pad 2 and the headrest 3 are fixedly installed on the top of the bed board 1, and the arrangement of the support pad 2 and the headrest 3 can improve the comfort of the patient, and the bottom of the bed board 1 is fixedly installed with a limit fixing component 4 that penetrates through the top and extends to both sides of the headrest 3, the limit fixing component 4 includes a fixing frame 41, the fixing frame 41 is fixedly installed on the bottom of the bed board 1, a threaded rod 42 is rotatably installed inside the fixing frame 41, the rear side of the threaded rod 42 penetrates through the rear side of the fixing frame 41 and is fixedly installed with a hand wheel 43, the interior of the fixing frame 41 is fixedly installed with guide rods 44 located on both sides of the threaded rod 42, the outer side of the threaded rod 42 is threadedly installed with two threaded blocks 45 that are sleeved on the outer side of the guide rod 44, and the outer side of the threaded rod 42 is provided with two sections with opposite directions The threaded block 45 has threads of equal length, a threaded sleeve which is sleeved on the outside of the threaded rod 42 and threadedly connected thereto is fixedly installed inside the threaded block 45, the setting of the guide rod 44 can improve the stability of the threaded block 45 when it moves, an extension frame 46 which passes through the top of the bed board 1 is fixedly installed on the top of the threaded block 45, a through hole which is adapted to the movement trajectory of the extension frame 46 is opened inside the bed board 1, and limiting plates 47 located on both sides of the headrest 3 are fixedly installed on the opposite sides of the two extension frames 46, and a limiting pad 48 is fixedly installed on the side of the limiting plate 47 close to the headrest 3. The auxiliary device for CT in the radiology department for medical diagnosis, by setting the use of the limiting fixing component 4, allows medical personnel to easily adjust and fix the patient's head position, reduces the operating trouble of medical personnel, ensures that the patient's head is located in the scanning center, and reduces the degradation of imaging quality and diagnostic errors caused by position deviation.

The bottom of the bed board 1 is fixedly installed with a waist fixing component 5 that penetrates to the top and extends to the top of the support pad 2. The waist fixing component 5 includes a mounting frame 51, which is fixedly installed at the bottom of the bed board 1. Two rack blocks 52 that penetrate to the top and penetrate to the top of the bed board 1 are movably installed at the bottom of the mounting frame 51. The mounting frame 51 and the bed board 1 are both provided with through holes that match the rack blocks 52. A limiting frame 53 that fits the front rack block 52 is rotatably installed at the top of the rear rack block 52. A pulling handle is fixedly installed on the top of the limiting frame 53. The pulling handle is The setting of the movable handle can improve the convenience of operation for medical staff. A protective pad 54 is fixedly installed on the inner side of the limit frame 53. A locking stud 55 threadedly connected to the front rack block 52 is threadedly installed on the top of the limit frame 53. A rotating block is fixedly installed on the top of the locking stud 55. A threaded groove adapted to the locking stud 55 is opened inside the front rack block 52. The setting of the rotating block can facilitate the operator to control the rotation of the locking stud 55. The waist fixing component 5 is movably installed inside with a clamping component 6 extending to its rear side. The clamping component 6 includes a rotating shaft 61, and the rotating shaft 6 There are two of 1 and they are rotatably mounted in the mounting frame 51. The outer sides of the two rotating shafts 61 are fixedly mounted with gears 62 meshing with the two rack blocks 52. The outer sides of the rotating shafts 61 are fixedly mounted with ratchet wheels 63 located on the right side of the gears 62. The interior of the mounting frame 51 is fixedly mounted with a snap-fit frame 64 located on the rear side of the ratchet wheels 63. The interior of the snap-fit frame 64 is movably mounted with a movable plate 65. The front side of the movable plate 65 is fixedly mounted with a snap-fit plate 66 engaged with the ratchet wheels 63. The inner side wall of the snap-fit frame 64 is provided with an extension hole adapted to the snap-fit plate 66. The interiors of the two snap-fit frames 64 are fixedly mounted with a movable plate 65. A pull rod 67 fixedly connected to the movable plate 65 is movably installed between the movable plate 65, an auxiliary spring sleeved on the outside of the pull rod 67 is fixedly installed between the movable plate 65 and the inner wall of the clamping frame 64, the rear side of the pull rod 67 passes through the rear side of the mounting frame 51 and is fixedly connected with a first pull ring 68, a support plate 69 sleeved on the outside of the pull rod 67 is fixedly installed inside the mounting frame 51, the inner side wall of the clamping frame 64 and the inside of the support plate 69 are provided with round holes adapted to the pull rod 67, a baffle 610 is fixedly installed on the outside of the pull rod 67, and a baffle 610 and the support plate 69 are connected. A support spring 611 is fixedly installed on the outside of the pull rod 67. The setting of the auxiliary spring and the support spring 611 can reset the position of the pull rod 67 to ensure the engagement effect of the ratchet 63 and the engaging plate 66. A mobile protection component 7 extending above the bed board 1 and located on the right side of the waist fixing component 5 is fixedly installed on the outside of the bed board 1. The mobile protection component 7 includes fixed slide rails 71. The number of fixed slide rails 71 is two and fixedly installed on the front and rear sides of the bed board 1. A protective cover 72 slidably connected to the two fixed slide rails 71 is movably installed on the outside of the bed board 1. The protective cover 72 is slidably connected to the two fixed slide rails 71. The inner side of the cover 72 is provided with a slide groove adapted to the fixed slide rail 71, the inner side of the protective cover 72 is fixedly installed with a lead rubber layer, and both sides of the protective cover 72 are movably installed with lead curtains 73. The application of soft materials such as the limit pad 48, the protective pad 54 and the lead curtain 73 reduces the direct contact between the patient and the hard parts, improves the patient's comfort, and reduces the discomfort during the scanning process. The lead curtain 73 is attached to the outer side of the protective cover 72. The coordinated setting of the lead rubber layer and the lead curtain 73 can protect the parts of the patient that do not need to be examined. The rear side of the protective cover 72 is fixedly installed with a connecting rod 73. The connecting frame 74 is provided with a latch 75 extending to the outside thereof and engaging with the fixed slide rail 71. The fixed slide rail 71 is provided with a plurality of jacks adapted to the latch 75. The number of jacks is equidistantly distributed. The rear side of the latch 75 extends to the outside of the connecting frame 74 and is fixedly connected with a second pull ring 76. An auxiliary plate 77 that fits the inner wall of the connecting frame 74 is fixedly installed on the outside of the latch 75. A limit spring 78 that is sleeved on the outside of the latch 75 is fixedly installed between the auxiliary plate 77 and the inner wall of the connecting frame 74. The limit spring 78 and the auxiliary plate The matching setting of 77 can ensure the locking effect of the pin 75 and the socket. The auxiliary device for medical diagnosis of radiology CT effectively limits the patient's body movement during the scanning process by setting the matching design of the waist fixing component 5, the locking component 6 and the mobile protection component 7, avoids the situation where the diagnostic accuracy is reduced due to the patient's body movement, and improves the reliability of the scan. The lead curtain 73 in the mobile protection component 7 and the lead rubber layer inside the protective cover 72 effectively shield the parts of the patient that do not need to be detected, block the scattered X-rays, and improve the safety of the patient.

When in use, the medical staff drives the threaded rod 42 to rotate in the fixing frame 41 by rotating the hand wheel 43, so that the threaded block 45 drives the limiting plate 47 to move toward the headrest 3 through the extension frame 46 at its top, until the limiting pads 48 are close to both sides of the patient's head, so that the head can be fixed. The medical staff can loosen the fastening of the limiting frame 53 by rotating the locking stud 55, and the patient's waist can be limited and fixed through the cooperation of the limiting frame 53 and the locking stud 55 when the patient lies on the support cushion 2. At the same time, the limiting frame 53 can be pulled upward by pulling the handle to adjust to an appropriate position, which is convenient for the medical staff to adjust. When the adjustment is too high, the first pull ring 68 can be used to cooperate with the pull rod 67 to make the patient lie on the support cushion 2. The ratchet 63 is disengaged from the engagement with the locking plate 66, and the rotation position of the gear 62 and the ratchet 63 can be adjusted at this time, thereby adjusting the extension height position of the two rack blocks 52, thereby improving its applicability during use. Before conducting an examination, the medical staff slides the protective cover 72 along the fixed slide rail 71 to above the position of the patient's body that does not need to be examined, and fixes it in the socket at the appropriate position through the pin 75. The lead curtain 73 fits on the outside of the protective cover 72 and the lead rubber layer to form a radiation protection barrier to ensure the safety of the patient. When the position of the protective cover 72 needs to be adjusted, the second pull ring 76 can be pulled to disengage the pin 75 from the socket, and then the protective cover 72 can be slid to a new position and re-fixed to improve its flexibility.

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

In summary, the auxiliary device for medical diagnosis of radiology CT, by setting the use of the limit fixing component 4, allows medical personnel to easily adjust and fix the patient's head position, reduces the operating trouble of medical personnel, and ensures that the patient's head is located at the scanning center, reducing the degradation of imaging quality and diagnostic errors caused by position deviation, and by setting the coordinated design of the waist fixing component 5, the locking component 6 and the mobile protection component 7, effectively limits the patient's body movement during the scanning process, avoids the situation where the diagnostic accuracy is reduced due to the patient's body movement, and improves the reliability of the scan, and the lead curtain 73 in the mobile protection component 7 and the lead rubber layer inside the protective cover 72 effectively shield the parts of the patient that do not need to be detected, block the scattered X-rays, improve the safety of the patient, facilitate the user's use, and solve the problems raised in the above-mentioned background technology.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. An auxiliary device for CT in a radiology department for medical diagnosis, comprising a bed board (1), a support cushion (2) and a headrest (3), wherein the support cushion (2) and the headrest (3) are arranged on the top of the bed board (1), characterized in that: a limit fixing component (4) penetrating through the top of the bed board (1) and extending to both sides of the headrest (3) is arranged at the bottom of the bed board (1), a waist fixing component (5) penetrating through the top of the bed board (1) and extending above the support cushion (2) is arranged at the bottom of the bed board (1), a clamping component (6) extending to the rear side of the waist fixing component (5) is arranged inside the waist fixing component (5), and a moving protection component (7) extending above the bed board (1) and located on the right side of the waist fixing component (5) is arranged on the outside of the bed board (1); The limit fixing assembly (4) comprises a fixing frame (41), the fixing frame (41) is fixedly mounted on the bottom of the bed board (1), a threaded rod (42) is rotatably mounted inside the fixing frame (41), the rear side of the threaded rod (42) passes through the rear side of the fixing frame (41) and is fixedly mounted with a hand wheel (43), the interior of the fixing frame (41) is fixedly mounted with guide rods (44) located on both sides of the threaded rod (42), the outer side of the threaded rod (42) is threadedly mounted with two threaded blocks (45) which are sleeved on the outer side of the guide rods (44), the top of the threaded block (45) is fixedly mounted with an extension frame (46) which passes through the top of the bed board (1), the opposite sides of the two extension frames (46) are fixedly mounted with limit plates (47) located on both sides of the headrest (3), and the side of the limit plate (47) close to the headrest (3) is fixedly mounted with a limit pad (48). 2. An auxiliary device for medical diagnosis and radiology CT according to claim 1, characterized in that: the waist fixing assembly (5) includes a mounting frame (51), the mounting frame (51) is fixedly mounted on the bottom of the bed board (1), the bottom of the mounting frame (51) is movably mounted with two rack blocks (52) that penetrate to the top thereof and to the top of the bed board (1), the top of the rear rack block (52) is rotatably mounted with a limit frame (53) that fits with the front rack block (52), the inner side of the limit frame (53) is fixedly mounted with a protective pad (54), and the top of the limit frame (53) is threadedly mounted with a locking stud (55) that is threadedly connected to the front rack block (52). 3. A medical diagnostic radiology CT auxiliary device according to claim 2, characterized in that: the engaging assembly (6) comprises a rotating shaft (61), the number of the rotating shafts (61) is two and they are rotatably mounted in the mounting frame (51), the outer sides of the two rotating shafts (61) are fixedly mounted with gears (62) meshing with the two rack blocks (52), the outer sides of the rotating shafts (61) are fixedly mounted with a ratchet (63) located on the right side of the gear (62), the interior of the mounting frame (51) is fixedly mounted with a engaging frame (64) located on the rear side of the ratchet (63), the interior of the engaging frame (64) is movably mounted with a movable plate (65), the movable plate (65) is fixedly mounted with the movable plate (65) and ... A locking plate (66) that is engaged with the ratchet (63) is fixedly installed on the front side of the plate (65); a pull-out rod (67) that is fixedly connected to the movable plate (65) is movably installed between the insides of the two locking frames (64); the rear side of the pull-out rod (67) passes through the rear side of the installation frame (51) and is fixedly connected to a first pull ring (68); a support plate (69) that is sleeved on the outside of the pull-out rod (67) is fixedly installed inside the installation frame (51); a baffle plate (610) is fixedly installed on the outside of the pull-out rod (67); and a support spring (611) that is sleeved on the outside of the pull-out rod (67) is fixedly installed between the baffle plate (610) and the support plate (69). 4. A medical diagnostic radiology CT auxiliary device according to claim 2, characterized in that: the mobile protection component (7) comprises fixed slide rails (71), the number of the fixed slide rails (71) is two and they are fixedly installed on the front and rear sides of the bed board (1), a protective cover (72) slidably connected to the two fixed slide rails (71) is movably installed on the outer side of the bed board (1), lead curtains (73) are movably installed on both sides of the protective cover (72), and a lead curtain (73) is fixedly installed on the rear side of the protective cover (72). A connecting frame (74), wherein a latch (75) extending to the outside and engaging with the fixed slide rail (71) is movably installed inside the connecting frame (74), the rear side of the latch (75) passes through the outside of the connecting frame (74) and is fixedly connected to a second pull ring (76), an auxiliary plate (77) in contact with the inner wall of the connecting frame (74) is fixedly installed on the outside of the latch (75), and a limit spring (78) sleeved on the outside of the latch (75) is fixedly installed between the auxiliary plate (77) and the inner wall of the connecting frame (74). 5. An auxiliary device for CT in the radiology department for medical diagnosis according to claim 1, characterized in that: the outer side of the threaded rod (42) is provided with two sections of threads in opposite directions and equal in length, the interior of the threaded block (45) is fixedly installed with a threaded sleeve which is sleeved on the outer side of the threaded rod (42) and threadedly connected thereto, and the interior of the bed board (1) is provided with a through hole which is compatible with the moving trajectory of the extension frame (46). 6. An auxiliary device for medical diagnosis and radiology CT according to claim 2, characterized in that: the installation frame (51) and the bed board (1) are both provided with through holes adapted to the rack block (52), a pulling handle is fixedly installed on the top of the limit frame (53), a rotating block is fixedly installed on the top of the locking stud (55), and a threaded groove adapted to the locking stud (55) is provided inside the front rack block (52). 7. An auxiliary device for medical diagnosis and radiology CT according to claim 3, characterized in that: an auxiliary spring is fixedly installed between the movable plate (65) and the inner wall of the locking frame (64) and is sleeved on the outside of the pull-out rod (67); the inner wall of the locking frame (64) is provided with an extension hole that is compatible with the locking plate (66); the inner wall of the locking frame (64) and the inside of the support plate (69) are both provided with circular holes that are compatible with the pull-out rod (67). 8. An auxiliary device for CT in the radiology department for medical diagnosis according to claim 4, characterized in that: a slide groove compatible with the fixed slide rail (71) is opened on the inner side of the protective cover (72), a lead rubber layer is fixedly installed on the inner side of the protective cover (72), and the lead curtain (73) is attached to the outer side of the protective cover (72). 9. The auxiliary device for medical diagnosis and radiology CT according to claim 4 is characterized in that: a socket compatible with the latch (75) is provided inside the fixed slide rail (71), and the number of the sockets is several and is distributed at equal distances.