CN211022725U - Body position restraining and protecting device for CT examination of children - Google Patents

Abstract

The utility model belongs to children CT inspection protection field specifically is children CT inspection position restraint and protector, including last arc casing, remote controller, lower arc casing, a driving motor, it is provided with to go up arc casing lower extreme arc casing down, it is provided with four first arc type structure arched girders and head end arc panel, foot end arc panel and both sides board to go up on the arc casing, first arc type structure arched girders pass through carbon fiber rivet with head end arc panel, foot end arc panel and both sides board riveting are connected. Through the utility model discloses two crisscross closed circle spaces that form of stereotype of half pair of semi-arc design about the protection shielding system adopts, carries out 360 degrees omnidirectional protections to non-inspection position, and the plumbous protection shielding system of arc utilizes motor control to adjust the protection position, is provided with laser indicating system at the plumbous terminal surface of arc guard plate simultaneously, can carry out position indication to the infant body surface by real-time projection.

Description

Body position restraining and protecting device for CT examination of children

Technical Field

The utility model belongs to children CT inspection protection field specifically relates to children CT inspection position restraint and protector.

Background

CT examination is an important examination means in medical activities, has important significance, can provide clear and accurate diagnosis and treatment images for medical personnel in hospitals, and plays an irreplaceable role in diagnosis and treatment of patients. However, since the body height and body shape of children are large in individual difference and poor in compliance and matching, the body position can not be effectively fixed and limited by using a conventional examination bed and a matched headrest, and the movement of limbs during scanning is prone to generate image motion blur. Meanwhile, the X-ray used in the CT examination process has certain harm to human body, especially more serious damage to the growing children, and the smaller the age of the children, the greater the degree of injury. The main influence of X-ray is tissue cells, and the self-repairing ability of the cells is insufficient, so that abnormal cell repair can be caused, and under the action of certain carcinogenic factors, the occurrence of cancer can be induced. According to the research of related data, the greater the radiation amount and the longer the radiation time, the greater the possibility that the harm and the long-term effect caused by X-ray are generated. Therefore, the health problem of the children is ensured by taking protective measures in the CT examination of the children. The medical X-ray diagnosis examinee radiological health protection standard (GB16348-2010) requires that an X-ray machine room should be provided with reliable protection equipment or facilities for waiting children, and protection articles for protecting corresponding tissues and organs should be provided for different examinations of children of different ages, and the protection performance of the X-ray machine room is not less than 0.5 mm lead equivalent. Therefore, the problems of posture restriction and protective shielding in the CT examination of children cannot be ignored. In recent years, various measures are taken by many units to restrain the body position and shield the body position, such as: in the chinese patent document with application No. 201810319883.0, the applicant provided a fixing device for infant CT examination, which utilizes a sponge pad and a fixing band to fix the position of the infant during examination, and utilizes a storage box to arrange a plurality of lead fabric rolls for radiation shielding and protection. Although a plurality of methods are adopted to carry out the posture restriction and shielding protection measures of the sick children, a certain posture restriction and shielding protection effect are achieved.

However, because children's height size personal difference is great, head, chest, belly size have great personal difference because of factors influence such as age, nutrition situation, consequently use in different ages or different height size infant and have certain limitation, only use the fixed band to fix the restraint in addition, produce easily to the infant and rein in the trace travelling comfort not good enough, and produce the sense of fear and make the infant increase struggle the degree. Meanwhile, because the X-ray generator (bulb tube) does circular motion around the center of the rack (CT aperture) during CT examination 1, that is, the X-ray can be incident from 360 degrees on the three-dimensional space of the body of the infant, a single plane is usually adopted to cover a lead material shielding measure, and the X-ray can still penetrate from the left, the right and the lower part to reach the non-examination part of the infant, so that the 360-degree omnibearing shielding effect is difficult to achieve, and the irradiated dose of the non-examination part cannot be reduced to the maximum extent. 2. Usually, the lead apron, the lead clothes, the lead rolled cloth and the like are soft materials and have larger weight, and if the lead apron, the lead clothes, the lead rolled cloth and the like are directly covered on the body of a sick child, the sick child has uncomfortable feeling of compression. 3. Because the body position restraining device and the lead protection plate lack independent supporting and moving systems, the lead protection device is often manually operated and fixed and manually covered, the operation is complicated, the working efficiency is low, the accuracy of the covering position is not high, and the condition that the non-inspection part is not completely covered or the part needing inspection is covered by mistake happens. 4. The containing box is placed on the side surface of the protective device, and a lead cloth roll is easily displayed beside an inspection image during inspection to generate metal artifacts, so that the image quality is influenced. 5. Absent an X-ray detector, there is often an overly extended scan range, with a larger unnecessary scan area.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a children CT inspection position restraint and protector.

The utility model discloses the technical scheme who adopts as follows:

the children CT examination body position restraining and protecting device comprises an upper arc-shaped shell, a remote controller, a lower arc-shaped shell and a first driving motor, wherein the lower arc-shaped shell is arranged at the lower end of the upper arc-shaped shell, four upper half arc-shaped structural arch beams are arranged on the upper arc-shaped shell, the upper half arc-shaped structural arch beams are fixedly riveted with the upper arc-shaped shell through carbon fiber rivets, lead protection plate sliding guide rails are arranged inside the upper half arc-shaped structural arch beams, the lead protection plate sliding guide rails are fixedly riveted with the upper half arc-shaped structural arch beams through the carbon fiber rivets, upper half arc-shaped lead protection mechanisms are arranged on the lead protection plate sliding guide rails, and lower half arc-shaped lead protection mechanisms are arranged inside the lower arc-shaped shell;

a central shaft is arranged between the upper arc-shaped shell and the lower arc-shaped shell, the upper arc-shaped shell is rotatably connected with the lower arc-shaped shell through the central shaft, leg restraining sponge pillow supports are arranged at the inner sides of the upper arc-shaped shell and the lower arc-shaped shell, waist and back restraining sponge pillow supports are arranged at the rear sides of the leg restraining sponge pillow supports, head restraining sponge pillow supports are arranged at the rear sides of the waist and back restraining sponge pillow supports, restraining air bags are arranged above the leg restraining sponge pillow supports, the waist and back restraining sponge pillow supports and the head restraining sponge pillow supports, slide bars are arranged at the two sides of the leg restraining sponge pillow supports, the central shaft and the head restraining sponge pillow supports, manual air pumps are arranged on the leg restraining sponge pillow supports, the waist and back restraining sponge pillow supports and the head restraining sponge pillow supports, and air holes are formed in the upper surface of the head restraining air bags, sponge pillows are arranged on the inner sides of the leg restraint sponge pillow support, the back restraint sponge pillow support and the head restraint sponge pillow support;

the upper semi-arc-shaped lead protection mechanism comprises an upper end outer layer protection plate and an upper end inner layer protection plate, the upper end outer layer protection plate is arranged on the outer side of the upper end inner layer protection plate, the lower semi-arc-shaped lead protection mechanism comprises a lower end inner layer protection plate and a lower end outer layer protection plate, the lower end inner layer protection plate is arranged on the inner side of the lower end outer layer protection plate, two sliding blocks are arranged on the upper end outer layer protection plate, the upper end inner layer protection plate, the lower end inner layer protection plate and the lower end outer layer protection plate respectively, a controller is installed on the upper end outer layer protection plate, the model of the controller is KGS-A10B-3, an indicating laser lamp is arranged at the front end of each of the upper end outer layer protection plate and the upper end;

the slider inboard is provided with the screw rod, the screw rod front end is provided with the sprocket, arc casing front end is provided with down first driving motor, arc casing rear end is provided with the second driving motor down.

Preferably: the first driving motor and the second driving motor are connected with the chain wheel through chains.

So set up, first driving motor second driving motor plays the energy supply effect, the sprocket plays the rotation effect, through chain drive, has guaranteed the effective transmission of power to guard plate synchronous motion about guaranteeing.

Preferably: the slider passes through the carbon fiber rivet with the outer guard plate of upper end, the inlayer guard plate of lower extreme, the outer guard plate of lower extreme riveting connection.

So set up, the slider plays the linkage effect, has guaranteed joint strength through the carbon fiber rivet.

Preferably: the screw rod is connected with the sliding block through threads, and the chain wheel is fixedly connected with the screw rod through a carbon fiber rivet.

So set up, the screw rod plays the transmission effect, has guaranteed driven stability through threaded connection.

Preferably: the leg restraint sponge pillow support, the waist and back restraint sponge pillow support, the head restraint sponge pillow support and the restraint air bag are connected to the sliding rod in a sliding mode, and the sliding rod is connected to the lower arc-shaped shell through bolts.

So set up, the slide bar plays supporting role, and sliding connection can be according to the required restraint fixed position of infant's height adjustment.

Preferably: go up the arc casing the outer guard plate sliding connection in of upper end inlayer guard plate, arc casing down, the outer guard plate sliding connection of lower extreme in the lower extreme inlayer guard plate.

So set up, the outer guard plate in upper end plays to support and 360 degrees shelters from the effect, and sliding connection conveniently adjusts and shelters from the position control.

Preferably: the remote controller is wirelessly connected with the controller, and the controller is connected with the indicating laser lamp, the X-ray detector, the first driving motor and the second driving motor through leads.

So set up, the remote controller is controlled and is removed the wire connection constraint of manual box and controller from, makes things convenient for the staff to operate, the controller plays the control action, has guaranteed information processing's ageing nature and motor electric energy through the wire connection and has carried, X ray detector is through detecting the useful ray that the CT bulb sent, gives the controller with signal feedback, and the controller sends the instruction through radio communication and stops the scanning for CT control system at CT bundle of rays scanning to sheltering from when protecting the position edge, avoids the unnecessary scanning of enlargeing, further reduces the scanning and penetrates wild scope.

The utility model has the advantages that:

1. the pillow for the head, the chest and the back can be switched according to different heights and body shapes of the children patients by adopting three groups of soft sponges, and the pillow for the head, the chest, the abdomen and the legs are combined with the inflation restraint belt position adjustment and the inflation pressure adjustment to realize personalized effective restraint and fixation on the children patients, so that the comfort of the children patients is improved, and the restraint and fixation effect is enhanced, thereby avoiding the family members from accompanying to scan, and avoiding unnecessary irradiation to the maximum extent;

2. the protective shielding system adopts a closed circular space formed by staggering two upper and lower semi-arc lead plates, and carries out 360-degree omnibearing protection on a non-inspection part, so that accurate diagnosis of the inspection part in clinic can be met, safe and effective radiation shielding protection can be carried out on the non-inspection part to the maximum extent, and the irradiation dose and the irradiated volume of the non-inspection part of a child patient during scanning are reduced;

3. the arc-shaped lead protection shielding system utilizes motor control to adjust the protection position, and meanwhile, a laser indicating system is arranged on the transverse end face of the arc-shaped lead protection plate, so that the arc-shaped lead protection shielding system can be projected to the body surface of a child in real time to indicate the position and can be adjusted through a remote control box, the shielding position is accurately controlled, and the operation is simple and convenient;

4. the X-ray detector feeds back signals to the controller by detecting useful rays emitted by the CT bulb tube, and the controller sends out an instruction to the CT control system through wireless communication to stop scanning when the CT ray bundle scans to the edge of a shielding protection part, so that the expanded unnecessary scanning is avoided, and the scanning field range is further reduced.

5. The body and other parts except the arc-shaped lead protection plate, the driving motor, the motor driving control circuit, the laser emitter and the control circuit are all made of carbon fiber materials with high rigidity modulus, and are arranged by avoiding an illuminated part, so that metal artifacts are prevented from interfering images;

6. the motor drive adopts a high-energy 12V direct-current rechargeable power supply, the laser system adopts a high-energy 3V direct-current rechargeable power supply, and the remote control is realized through a manual control box, so that the constraint of the power supply and a control line is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a first structure of a posture restraining and protecting device for a child CT examination according to the present invention;

FIG. 2 is a second schematic structural view of the posture restraining and protecting device for children CT examination according to the present invention;

FIG. 3 is a schematic view of the position structure of the upper half arc lead protection mechanism and the lower half arc lead protection mechanism of the body position restriction and protection device for children CT examination of the present invention;

FIG. 4 is a schematic view of the exploded structure of the upper semi-arc lead protection mechanism and the lower semi-arc lead protection mechanism of the posture restraint and protection device for children CT examination of the present invention;

FIG. 5 is a schematic structural view of a leg restraint sponge pillow support, a back restraint sponge pillow support and a head restraint sponge pillow support of the body position restraint and protection device for CT examination of children of the present invention;

FIG. 6 is a schematic view of the screw structure of the posture restriction and protection device for children CT examination of the present invention;

FIG. 7 is a schematic view of the remote controller of the posture restriction and protection device for CT examination of children of the present invention;

fig. 8 is a circuit structure flow diagram of the posture restriction and protection device for child CT examination.

The reference numerals are explained below:

1. an upper arc-shaped shell; 2. a remote controller; 3. a lower arc-shaped shell; 4. an arched beam with an upper half-arc structure; 5. a lead guard plate slide guide; 6. an upper semi-arc lead protection mechanism; 7. a lower semi-arc lead protection mechanism; 8. a first drive motor; 9. a manual inflator; 10. the legs restrain the sponge pillow support; 11. a slide bar; 12. the head part is restrained by a sponge pillow support; 13. a second drive motor; 14. the waist and the back are restrained by the sponge pillow support; 15. a central shaft; 16. an indicator laser light; 17. an upper end outer layer protection plate; 18. an upper end inner layer protection plate; 19. a controller; 20. a lower end inner layer protection plate; 21. an outer protection plate at the lower end; 22. a screw; 23. a slider; 24. a sprocket; 25. restraining the air bag; 26. air holes are formed; 27. a sponge bolster; 28. an X-ray detector; 29. a CT control system.

Detailed Description

The present invention will be further described with reference to the following examples and drawings.

Examples

As shown in fig. 1-8, the posture restraining and protecting device for children CT examination comprises an upper arc-shaped shell 1 and a remote controller 2, the lead protection device comprises a lower arc-shaped shell 3 and a first driving motor 8, wherein the lower end of an upper arc-shaped shell 1 is provided with the lower arc-shaped shell 3, the upper arc-shaped shell 1 plays a supporting role, the lower arc-shaped shell 3 plays a supporting role, four upper half-arc-shaped structural arch beams 4 are arranged on the upper arc-shaped shell 1, the upper half-arc-shaped structural arch beams 4 are fixedly riveted with the upper arc-shaped shell 1 through carbon fiber rivets, the upper half-arc-shaped structural arch beams 4 play a supporting role, lead protection plate sliding guide rails 5 are arranged inside the upper half-arc-shaped structural arch beams 4, the lead protection plate sliding guide rails 5 are fixedly riveted with the upper half-arc-shaped structural arch beams 4 through carbon fiber rivets, the lead protection plate sliding guide rails 5 play a supporting role, the upper half-arc-shaped lead protection mechanisms 6 are arranged on the lead protection;

a central shaft 15 is arranged between the upper arc-shaped shell 1 and the lower arc-shaped shell 3, the upper arc-shaped shell 1 is rotatably connected with the lower arc-shaped shell 3 through the central shaft 15, the inner sides of the upper arc-shaped shell 1 and the lower arc-shaped shell 3 are provided with a leg restraint sponge pillow support 10, the rear side of the leg restraint sponge pillow support 10 is provided with a back restraint sponge pillow support 14, the rear side of the back restraint sponge pillow support 14 is provided with a head restraint sponge pillow support 12, a restraint air bag 25 is arranged above the leg restraint sponge pillow support 10, the back restraint sponge pillow support 14 and the head restraint sponge pillow support 12, the two sides of the leg restraint sponge pillow support 10, the central shaft 15 and the head restraint sponge pillow support 12 are provided with slide bars 11, the leg restraint sponge pillow support 10, the back restraint sponge pillow support 14 and the head restraint sponge pillow support 12 are provided with manual air pumps 9, and air holes 26 are arranged on the upper, the inner sides of the leg restraint sponge pillow support 10, the waist and back restraint sponge pillow support 14 and the head restraint sponge pillow support 12 are all provided with sponge pillows 27;

the upper semi-arc-shaped lead protection mechanism 6 comprises an upper end outer layer protection plate 17 and an upper end inner layer protection plate 18, the upper end outer layer protection plate 17 is arranged on the outer side of the upper end inner layer protection plate 18, the lower semi-arc-shaped lead protection mechanism 7 comprises a lower end inner layer protection plate 20 and a lower end outer layer protection plate 21, the lower end inner layer protection plate 20 is arranged on the inner side of the lower end outer layer protection plate 21, two sliding blocks 23 are arranged on the upper end outer layer protection plate 17, the upper end inner layer protection plate 18, the lower end inner layer protection plate 20 and the lower end outer layer protection plate 21 respectively, a controller 19 is arranged on the upper end outer layer protection plate 17, the front ends of the upper end outer layer protection plate 17 and;

a screw 22 is arranged on the inner side of the sliding block 23, a chain wheel 24 is arranged at the front end of the screw 22, a first driving motor 8 is arranged at the front end of the lower arc-shaped shell 3, and a second driving motor 13 is arranged at the rear end of the lower arc-shaped shell 3.

The working principle is as follows: before examination, the device is placed on a CT bed, the upper arc-shaped shell 1 is opened, a proper sponge bolster 27 is selected, the positions of the leg restraint sponge bolster 10, the waist and back restraint sponge bolster 14 and the head restraint sponge bolster 12 and the positions of the corresponding restraint air bags 25 are adjusted according to the height and body shape characteristics of a child patient, the child patient to be examined lies in the device in a supine and flat mode, the remote controller 2 is used for turning on the indicating laser lamp 16, the remote controller 2 is used for controlling the first driving motor 8 and the second driving motor 13 according to the exposure requirement of an examined part, the second driving motor 13 is used for driving the chain wheel 24, the screw rod 22 and the sliding block 23, so that the positions of the upper half arc-shaped lead protection mechanism 6 and the lower half arc-shaped lead protection mechanism 7 are adjusted, the corresponding air bags are locked and inflated and fixed, the upper arc-shaped structure is closed.

The first driving motor 8 and the second driving motor 13 are both connected with the chain wheel 24 through chains, the first driving motor and the second driving motor play a role in energy supply, the chain wheel plays a role in rotation, effective transmission of force is guaranteed through chain transmission, and synchronous movement of the upper protection plate and the lower protection plate is guaranteed; the sliding block 23 is fixedly riveted with the upper end outer layer protection plate 17, the upper end inner layer protection plate 18, the lower end inner layer protection plate 20 and the lower end outer layer protection plate 21 through carbon fiber rivets, the sliding block plays a role in linkage, and the connection strength is guaranteed through the carbon fiber rivets; the screw 22 is connected to the slider 23 through threads, the chain wheel 24 is fixedly riveted with the screw 22 through a carbon fiber rivet, the screw plays a transmission role, and the transmission stability is ensured through threaded connection; the leg restraint sponge pillow support 10, the waist and back restraint sponge pillow support 14, the head restraint sponge pillow support 12 and the restraint air bag 25 are connected to the sliding rod 11 in a sliding mode, the sliding rod 11 is connected to the lower arc-shaped shell 3 through bolts, the sliding rod plays a supporting role, and the required restraint fixing position can be adjusted through sliding connection according to the height of a child patient; the upper arc-shaped shell 1 and the upper end outer protection plate 17 are connected to the upper end inner protection plate 18 in a sliding mode, the lower arc-shaped shell 3 and the lower end outer protection plate 21 are connected to the lower end inner protection plate 20 in a sliding mode, the upper end outer protection plate plays a role in supporting and 360-degree shielding, and the sliding connection facilitates adjustment of shielding positions; remote controller 2 is through wireless connection in controller 19, controller 19 is connected in indicating laser lamp 16 through the wire, controller 19 passes through wire connection X ray detector 28, controller 19 gives CT control system 29 through wireless transmission signal, first driving motor 8, second driving motor 13, the remote controller is controlled and is removed the manual box and be connected the constraint with the wire of controller from, make things convenient for the staff to operate, the controller plays the control action, the timeliness and the motor electric energy that have guaranteed information processing through the wire connection are carried.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims (7)

1. Children's CT inspection position restraint and protector, its characterized in that: the lead protection device comprises an upper arc-shaped shell (1), a remote controller (2), a lower arc-shaped shell (3) and a first driving motor (8), wherein the lower end of the upper arc-shaped shell (1) is provided with the lower arc-shaped shell (3), the upper arc-shaped shell (1) is provided with four upper half arc-shaped structure arch beams (4), the upper half arc-shaped structure arch beams (4) are fixedly riveted with the upper arc-shaped shell (1) through carbon fiber rivets, lead protection plate sliding guide rails (5) are arranged inside the upper half arc-shaped structure arch beams (4), the lead protection plate sliding guide rails (5) are fixedly riveted with the upper half arc-shaped structure arch beams (4) through carbon fiber rivets, the lead protection plate sliding guide rails (5) are provided with upper half arc-shaped lead protection mechanisms (6), and the lower half arc-shaped lead protection mechanisms (7) are arranged inside the lower arc-shaped shell (3);

a central shaft (15) is arranged between the upper arc-shaped shell (1) and the lower arc-shaped shell (3), the upper arc-shaped shell (1) is rotatably connected with the lower arc-shaped shell (3) through the central shaft (15), leg restraint sponge pillow supports (10) are arranged on the inner sides of the upper arc-shaped shell (1) and the lower arc-shaped shell (3), a back restraint sponge pillow support (14) is arranged on the rear side of the leg restraint sponge pillow support (10), a head restraint sponge pillow support (12) is arranged on the rear side of the back restraint sponge pillow support (14), restraint air bags (25) are arranged above the leg restraint sponge pillow support (10), the central shaft (15) and the head restraint sponge pillow support (12), and slide bars (11) are arranged on two sides of the leg restraint sponge pillow support (10), the central shaft (15) and the head restraint sponge pillow support (12), the leg restraint sponge pillow support (10), the back restraint sponge pillow support (14) and the head restraint sponge pillow support (12) are all provided with a manual inflator pump (9), air holes (26) are formed in the upper surface of the head restraint air bag (25), and the inner sides of the leg restraint sponge pillow support (10), the back restraint sponge pillow support (14) and the head restraint sponge pillow support (12) are all provided with sponge pillows (27);

the upper half arc-shaped lead protection mechanism (6) comprises an upper end outer protection plate (17) and an upper end inner protection plate (18), the upper end outer protection plate (17) is arranged on the outer side of the upper end inner protection plate (18), the lower half arc-shaped lead protection mechanism (7) comprises a lower end inner protection plate (20) and a lower end outer protection plate (21), the lower end inner protection plate (20) is arranged on the inner side of the lower end outer protection plate (21), the upper end outer protection plate (17), the upper end inner protection plate (18), the lower end inner protection plate (20) and the lower end outer protection plate (21) are both provided with two sliding blocks (23), a controller (19) is installed on the upper end outer protection plate (17), the upper end outer protection plate (17) and the upper end inner protection plate (18) are both provided with an indicating laser lamp (16), an X-ray detector (28) is arranged in the indicating laser lamp;

the inner side of the sliding block (23) is provided with a screw rod (22), the front end of the screw rod (22) is provided with a chain wheel (24), the front end of the lower arc-shaped shell (3) is provided with the first driving motor (8), and the rear end of the lower arc-shaped shell (3) is provided with the second driving motor (13).

2. The child CT examination body position restraint and protection device of claim 1, wherein: the first driving motor (8) and the second driving motor (13) are connected with the chain wheel (24) through chains.

3. The child CT examination body position restraint and protection device of claim 1, wherein: the sliding block (23) is riveted and connected with the upper end outer protection plate (17), the upper end inner protection plate (18), the lower end inner protection plate (20) and the lower end outer protection plate (21) through carbon fiber rivets.

4. The child CT examination body position restraint and protection device of claim 1, wherein: the screw rod (22) is connected to the sliding block (23) through threads, and the chain wheel (24) is fixedly connected with the screw rod (22) through carbon fiber rivets.

5. The child CT examination body position restraint and protection device of claim 1, wherein: the leg restraint sponge pillow support (10), the waist and back restraint sponge pillow support (14), the head restraint sponge pillow support (12) and the restraint air bag (25) are connected to the sliding rod (11) in a sliding mode, and the sliding rod (11) is connected to the lower arc-shaped shell (3) through bolts.

6. The child CT examination body position restraint and protection device of claim 1, wherein: go up arc casing (1), upper end outer guard plate (17) sliding connection in upper end inner guard plate (18), arc casing (3) down, lower extreme outer guard plate (21) sliding connection in lower extreme inner guard plate (20).

7. The child CT examination body position restraint and protection device of claim 1, wherein: the remote controller (2) is connected to the controller (19) in a wireless mode, and the controller (19) is connected to the indicating laser lamp (16), the X-ray detector (28), the first driving motor (8) and the second driving motor (13) through wires.

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