X-ray radiation examination chair for children

Abstract

The utility model relates to a children's X-ray radioscopy chair, including seat, restraint strap, radiation protection system, rotatable stand bar system and modularization seat cushion subassembly, modularization seat cushion subassembly includes combined frame, three-level caulking groove system and replaceable seat cushion subassembly, combined frame includes base plate, left side plate, right side plate and back plate, and the three-level caulking groove system and replaceable seat cushion subassembly include the base plate, left side plate, right side plate and back plate. A backrest headrest plate with the adjustable height is installed on the back plate, and the replaceable seat cushion assembly comprises an infant seat cushion and a baby seat cushion. More clinical body position placing requirements are met, better conditions are provided for doctors to diagnose diseases, and meanwhile clearer images can be provided; unnecessary ionizing radiation is reduced; the clinical examination time is saved; a three-stage caulking groove system is arranged, so that quick reloading is realized, and the X-ray examination requirements of children of different ages and heights are met; the gonads of children are effectively protected; the inspection efficiency is improved through a multi-dimensional and differentiated constraint strategy; and the equipment maintenance cost is reduced through the modular design.

Description

Technical Field

[0001] This application relates to the field of pediatric X-ray examinations, specifically to a pediatric X-ray examination chair. Background Technology

[0002] During pediatric X-ray examinations, the correct radiographic positioning is crucial according to clinical requirements. Doctors often struggle to communicate this verbally to ensure the child or their guardian understands and correctly positions the child. Currently, the common practice is for a guardian to hold the child during the examination. However, this method can interfere with the results due to the guardian's own habits and concerns about the child's health, exposing the guardian to unnecessary ionizing radiation. Furthermore, this holding position fails to meet the clinical needs for lateral and oblique views of the airway and body. The extended examination time or inability to perform the examination due to positioning issues is also a major challenge for pediatricians. On the other hand, children's behavior is often beyond the control of medical staff or guardians. Even after being calmed and restrained by a guardian, a tense child may still struggle without warning. This not only severely disrupts the examination but also poses a risk of injury to the child and their guardian during the struggle.

[0003] In addition, current pediatric radiological examinations also face three major technical challenges:

[0004] (1) Traditional fixation devices lack size adaptability and cannot meet the body size differences of children of different ages;

[0005] (2) Inadequate protective measures and insufficient radiation protection for critical organs;

[0006] (3) The problem of repeated exposure caused by poor compliance of children during the inspection process.

[0007] In view of this, the inventor has conducted in-depth research and developed a method and chair suitable for X-ray examinations of children. Summary of the Invention

[0008] The purpose of this invention is to provide a children's X-ray examination chair to solve the problems of unnecessary ionizing radiation exposure to guardians, safety issues caused by children's unexplained struggles, and the impact on examination quality and efficiency when using traditional examination chairs. At the same time, it can also meet the needs of X-ray examinations for children of different ages and heights.

[0009] The technical solution of this utility model for a children's X-ray examination chair is implemented as follows:

[0010] An examination chair for a pediatric X-ray examination includes a seat, restraint straps, and a radiation protection system, including a rotatable support system and a modular seat cushion assembly. The modular seat cushion assembly includes a modular frame, a three-level groove system, and a replaceable seat cushion assembly. The modular frame includes a base plate, a left side plate, a right side plate, and a back plate connected to the base plate. An adjustable height backrest headrest is installed on the back plate.

[0011] The three-level slotting system includes an upper sliding groove, a middle sliding groove, and a lower sliding groove symmetrically distributed on the inner sides of the left and right side plates;

[0012] The replaceable seat cushion assembly includes a toddler seat cushion for children older than 1 year old and an infant seat cushion for infants 1 year old and under 1 year old. The toddler seat cushion has a first slide rail on the left and right sides that is adapted to the middle slide rail, and the infant seat cushion has a second slide rail on the left and right sides that is adapted to the upper slide rail. The slide rails on the left and right sides of both the toddler seat cushion and the infant seat cushion are adapted to the lower slide rail.

[0013] Furthermore, the left and right side plates are provided with through-holes for fixing the seat cushions, which are located opposite the upper and middle sliding grooves. The baby seat cushion and the toddler seat cushion are provided with seat cushion pin holes at the corresponding positions of the seat cushion fixing holes. A plastic spring is fixed on the outer side of the left or right side plate, and the other end of the plastic spring is connected to a fixing pin that matches the seat cushion fixing hole and the seat cushion pin hole.

[0014] Furthermore, the back plate includes a back plate body, a rectangular groove is provided in the middle of the front part of the back plate body, two symmetrical guide groove vertical plates are provided on the upper two sides of the back plate body, the corresponding inner sides of the two guide groove vertical plates and the left and right sides forming the rectangular groove are provided with groove rails from top to bottom and in the same straight line, and a long strip-shaped adjustment vertical hole is provided at the rear of the back plate body.

[0015] The headrest panel includes a headrest panel body. The upper part of the headrest panel body is provided with an arc-shaped support for supporting the human head and neck. The lower part of the headrest panel body is provided with bolt holes. The two sides of the headrest panel body are provided with inset edges that are adapted to the groove rail. The headrest panel is inserted into the groove rail from top to bottom through the inset edges on both sides. Then, the adjustment knob passes through the elongated adjustment vertical hole provided at the rear of the back panel body and the bolt hole provided at the lower part of the headrest panel body and is fixed with nuts.

[0016] Furthermore, both the left and right side plates have a through-cut on the lower front part near the base plate for installing the leg elastic band through hole.

[0017] Furthermore, the two guide groove vertical plates are respectively provided with symmetrical abdominal elastic band through holes, hand elastic band through holes and head elastic band through holes from bottom to top. Abdominal elastic bands, hand elastic bands and head elastic bands for restraining the abdomen, hands and head are respectively inserted into the abdominal elastic band through holes, hand elastic bands and head elastic bands.

[0018] Furthermore, the radiation protection system includes a lead-skin protective box knob and a lead-skin protective box. A storage box is provided on one outer side of the left or right side panel. The lead-skin protective box knob is installed in the middle of the upper surface of the toddler seat cushion and infant seat cushion to cover the crotch area. The lead-skin protective box is placed in the storage box. When in use, it is placed between the examiner's legs at the rear of the lead-skin protective box knob to form an adaptive adjustment angle.

[0019] Furthermore, the baby seat cushion includes an E-shaped base plate, a vertical plate disposed in the middle of the upper part of the E-shaped base plate, a T-shaped seat plate mounted horizontally on the vertical plate, and side panels disposed on both sides of the T-shaped seat plate. The lower part of the side panels is connected to both sides of the E-shaped base plate, and the second slide rail is disposed on the left and right sides of the E-shaped base plate.

[0020] Furthermore, the back panel body has multiple fixing holes of different heights on one side. The fixing holes are used to place the flat panel cassette bracket. The flat panel cassette bracket has a right-angled groove with the slot facing upward. The back of the flat panel cassette bracket has a bracket fixing pin. The flat panel cassette bracket is fixed to the back panel body by inserting the bracket fixing pin into the fixing hole.

[0021] Furthermore, the rotatable support system includes brake casters, five-star caster seats, telescopic gas springs, a tray with a handle, and a lifting handle.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This invention meets a wider range of clinical positioning needs, providing better conditions for doctors to diagnose diseases. In existing technologies, caregivers often need to hold the child or secure them to their laps, leading to overlap between the caregiver and the child's examined area, resulting in overlapping images. Furthermore, lateral and oblique views of the child's spine and chest are very difficult to achieve, often making it impossible to take X-rays. This new pediatric X-ray examination chair can be rotated to switch between anteroposterior, lateral, and oblique views, meeting almost all the positioning needs for pediatric diagnosis while providing clearer images.

[0024] 2. Reduce unnecessary ionizing radiation. In existing technologies, guardians need to hold children on their laps, and even if they are not in the center of the radiation, they will still be exposed to a small amount of unnecessary radiation. This new pediatric X-ray examination chair has the function of holding the child in place, and the guardian only needs to stay by the side to comfort the child while holding the child in place. The guardian does not need to supervise the child in the radiation room, thus avoiding unnecessary ionizing radiation exposure for the guardian.

[0025] 3. Saves clinical testing time. Due to the lack of professional positioning by caregivers and children's fear or uncooperative behavior, positioning time is often long. The shortage of pediatricians and the preciousness of time have always been urgent but difficult problems to solve. Using a radiology chair can save valuable time for pediatric radiologists.

[0026] 4. Equipped with a three-level slot system for quick seat changes. During use, the child seat cushion and infant seat cushion can be easily switched to meet the needs of children and infants of different ages during examinations.

[0027] 5. The examination chair can be set with either a high or low examination track, and features an adjustable backrest and headrest board, allowing for flexible X-ray examinations of children of different ages and heights.

[0028] 6. Integrating lead protection and body positioning functions, it effectively protects children's gonads and avoids X-ray radiation.

[0029] 7. Set restraint straps for the head, hands, abdomen, and legs; multi-dimensional and differentiated restraint strategies improve examination efficiency.

[0030] 8. The inspection chair is equipped with selectable high or low inspection tracks, adjustable backrest and headrest, and features seat cushions for both older and younger children. It also includes unused tracks and a modular design to reduce equipment maintenance costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a child X-ray examination chair according to this utility model;

[0032] Figure 2 yes Figure 1 Another structural diagram from a different perspective;

[0033] Figure 3 This is a structural schematic diagram of the back panel of this utility model from the front view.

[0034] Figure 4 This is a three-dimensional structural diagram of a flat panel dark box placement rack of this utility model;

[0035] Figure 5 This is a structural diagram showing the relationship between the right side plate, the fixing pin, and the plastic spring of this utility model;

[0036] Figure 6 This is a schematic diagram of the elastic bands of a children's X-ray examination chair according to this utility model.

[0037] Explanation of reference numerals in the attached figures

[0038] 10-Plastic spring; 11-Base plate; 12-Left side plate; 13-Right side plate; 14-Upper slide rail; 15-Middle slide rail; 16-Lower slide rail; 17-Seat cushion fixing hole; 18-Fixing pin; 19-Slit; 21-Toddler seat cushion; 22-Infant seat cushion; 221-E-shaped base plate; 222-Upright plate; 223-T-shaped seat plate; 224-Side panel; 23-Leg elastic band; 24-Abdominal elastic band; 25-Hand elastic band; 26-Head elastic band; 31-Adjustment knob; 41-Back panel body; 411- Fixed hole; 412-Flat panel box bracket; 413-Bracket fixing pin; 42-Long strip-shaped adjustment vertical hole; 43-Guide groove vertical plate; 44-Gate rail; 45-Rectangular groove; 51-Headrest plate body; 52-Arch-shaped support; 61-Leg elastic band through hole; 71-Abdominal elastic band through hole; 72-Hand elastic band through hole; 73-Head elastic band through hole; 81-Lead sheet protective box knob; 82-Lead sheet protective box; 83-Storage box; 91-Brake caster; 92-Five-star caster seat; 93-Retractable gas spring; 94-Lifting handle. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0040] Example 1: As Figure 1-6 As shown, this utility model adopts an examination chair using a child X-ray examination method, including a seat, restraint straps and radiation protection system, including a rotatable support system and a modular seat cushion assembly. The modular seat cushion assembly includes a combined frame, a three-level groove system and a replaceable seat cushion assembly. The combined frame includes a base plate 11, a left side plate 12 and a right side plate 13 connected to the base plate 11 and a back plate. An adjustable height backrest headrest plate is installed on the back plate.

[0041] The three-level slotting system includes an upper sliding groove 14, a middle sliding groove 15 and a lower sliding groove 16 symmetrically distributed on the inner sides of the left side plate 12 and the right side plate 13.

[0042] The replaceable seat cushion assembly includes a toddler seat cushion 21 for children older than 1 year and an infant seat cushion 22 for infants 1 year and under. The toddler seat cushion 21 has first slide rails on the left and right sides that are adapted to the middle slide rail 15, and the infant seat cushion 22 has second slide rails on the left and right sides that are adapted to the upper slide rail 14. The slide rails on the left and right sides of both the toddler seat cushion 21 and the infant seat cushion 22 are adapted to the lower slide rail 16.

[0043] The left side plate 12 and right side plate 13 have through-holes 17 for fixing the seat cushions, corresponding to the upper slide groove 14 and the middle slide groove 15, respectively. In some embodiments, seat cushion pin holes can also be provided on the infant seat cushion 22 and the toddler seat cushion 21 at the positions corresponding to the seat cushion fixing holes 17. A plastic spring 10 is fixed to the outer surface of the left side plate 12 or the right side plate 13, and the other end of the plastic spring 10 is connected to a fixing pin 18 that matches the seat cushion fixing hole 17 and the seat cushion pin hole. In this embodiment, the plastic spring 10 is a 13cm long plastic ring with a diameter of cm at each end. The fixing pin 18 is a cylindrical pin with a diameter of 1cm and a height of 3.5cm, with an M5*10 screw hole at one end. One of the rings of the plastic spring 10 is fixed to the right side plate 13 with a screw; the other end is connected to the screw hole of the fixing pin 18 with a screw, which facilitates the use and storage of the fixing pin 18; the toddler seat cushion 21 and the infant seat cushion 22 can slide on the track formed by the upper sliding groove 14, the middle sliding groove 15 and the lower sliding groove 16 provided on the left side plate 12 and the right side plate 13. When fixing, the toddler seat cushion 21 or the infant seat cushion can be fixed by inserting the fixing pin 18 into the seat cushion fixing hole 17; the plastic spring 10 and the fixing pin 18 together form the fixing system of the child X-ray examination chair seat cushion.

[0044] like Figure 3 As shown, the back plate includes a back plate body 41. A rectangular groove 45 is provided in the middle of the front part of the back plate body 41. Two symmetrical guide groove vertical plates 43 are provided on the upper two sides of the back plate body 41. The corresponding inner sides of the two guide groove vertical plates 43 and the left and right sides forming the rectangular groove 45 are provided with groove rails 44 that run from top to bottom and are in the same straight line. A long strip-shaped adjustment vertical hole 42 is provided at the rear of the back plate body 41.

[0045] like Figure 1 , 2 As shown, the headrest panel includes a headrest panel body 51. The upper part of the headrest panel body 51 is provided with an arc-shaped support 52 for supporting the human head and neck. The lower part of the headrest panel body 51 is provided with bolt holes. The two sides of the headrest panel body 51 are provided with inset edges that are adapted to the groove rail 44. The headrest panel is inserted into the groove rail 44 from top to bottom through the inset edges on both sides. Then, the adjustment knob 31 passes through the elongated adjustment vertical hole 42 provided at the rear of the back panel body 41 and the bolt hole provided at the lower part of the headrest panel body 51 and is fixed by nuts.

[0046] In some embodiments, the elongated adjustment vertical hole 42 is a through slot 6cm from the bottom surface, with a length of 13cm. The adjustment knob 31 is an M10 star-shaped lifting knob. The bolt hole at the bottom of the headrest body 51 is 6cm from the bottom surface and has a diameter of 1.1cm. The corresponding bolt hole on the front of the headrest body 51 has a regular hexagonal prism groove, into which an M10 nut is inserted. During installation, the bolt section of the adjustment knob 31 is passed through the elongated adjustment vertical hole 42 of the backrest body 41 and then through the bolt hole of the headrest body 51. It engages with the inserted M10 nut to fix the headrest backrest to the backrest. Loosening the adjustment knob 31 allows the height of the headrest backrest relative to the backrest to be adjusted along the elongated adjustment vertical hole 42, to suit the needs of checking a child's height.

[0047] like Figure 1 As shown, in this embodiment, both the left side plate 12 and the right side plate 13 have a through-cut 19 at a distance of 2cm-2.4cm from the front, near the base plate 11, for installing the leg elastic band 23 through hole 61. There are two straight through holes with a diameter of 1cm on the front, and on the right side of the right side plate, there is an M5*10 screw hole 12cm to the right of the nearest straight through hole on the upper side.

[0048] As an example, such as Figure 6 As shown, the leg elastic band 23 is 68cm long and 8cm wide. A 3cm long and 8cm wide hook-and-loop fastener is sewn onto one side of each end of the leg elastic band 23, and a 3cm long and 8cm wide hook-and-loop fastener is sewn onto the other side. The two ends of the leg elastic band 23 pass through the leg elastic band through-holes 61 formed by the cut 19 of the left side plate 12 and the leg elastic band through-holes 61 formed by the cut 19 of the right side plate, respectively. The child's leg is placed inside, the leg elastic band 23 is tightened, and secured with the hook-and-loop fasteners and hook-and-loop fasteners on opposite sides of the leg elastic band 23. The two guide vertical plates 43 are respectively provided with three symmetrical holes from bottom to top: an abdominal elastic band through hole 71, a hand elastic band through hole 72, and a head elastic band through hole 73. An abdominal elastic band 24, a hand elastic band 25, and a head elastic band 26 for restraining the abdomen, hands, and head are respectively threaded through the abdominal elastic band through hole 71, the hand elastic band through hole 72, and the head elastic band through hole 73. Based on this embodiment, a hook-and-loop fastener measuring 3 cm in length and 23 cm in width can also be attached to the top of each of these holes.

[0049] As an example, such as Figure 6As shown, the abdominal elastic band is 83cm long and 8cm wide. A hook-and-loop fastener, 8cm long and 8cm wide, is sewn onto each end of the same side. The two ends of the abdominal elastic band 71 pass through two abdominal elastic band through-holes 71 and are secured with hook-and-loop fasteners and loop fasteners on opposite sides of each end. The head elastic band is 78cm long and 3cm wide. A hook-and-loop fastener, 3cm long and 3cm wide, is sewn onto each end of the same side. The two ends of the head elastic band pass through two head elastic band through-holes 73 on the two guide vertical plates 43, wrap outwards around the guide vertical plates 43, and are secured with hook-and-loop fasteners and loop fasteners on opposite sides of each end. The two hand elastic bands are each 43cm long and 3cm wide. A hook-and-loop fastener, 6cm long and 3cm wide, is sewn onto one side of each end, and a hook-and-loop fastener, 3cm long and 3cm wide, is sewn onto the other side. Elastic bands 25, 3cm wide and hook-and-loop fasteners, are used to secure the left hand of the child being examined. One end passes through the hand elastic band hole 72 on the middle right guide plate 43, and the other end wraps around the back panel from the outside to the back, secured with hook-and-loop fasteners and loop fasteners with opposite ends. Elastic bands 23, 24, 26, and 25 are used to secure the child in the X-ray examination chair. The leg elastic band 23, abdominal elastic band 24, head elastic band 26, and hand elastic band 25 together form the measures for securing the child in the X-ray examination chair. The head elastic band 26 supports the child's chin, with both ends passing through the head elastic band hole 73 on the upper back panel and secured with loop fasteners on the hook-and-loop fasteners on the back of the guide plate 43.

[0050] like Figure 1As shown, the radiation protection system in this embodiment includes a lead sheet protective box knob 81 and a lead sheet protective box 82. A storage box 83 is provided on the outer side of the left side panel 12 or the right side panel 13. The lead sheet protective box knob 81 is installed in the middle of the upper surface of the toddler seat cushion 21 and the infant seat cushion 22 to cover the crotch area. The lead sheet protective box 82 is placed in the storage box 83. When in use, it is placed between the examiner's legs behind the lead sheet protective box knob 81 to form an adaptive adjustment angle. In this embodiment, the lead sheet protective box 82 is 10cm long, 5cm wide, and 1.1cm thick. It consists of a lead sheet protective box top cover, a lead sheet protective box bottom cover, and lead sheet. The center of the lead sheet protective box top cover has a groove that is 6cm long, 4.5cm wide, and 0.4cm thick, which can hold a lead sheet that is 6cm long, 4.5cm wide, and 0.4cm thick. The lead sheet protective box knob 81 is 2 cm long, 2 cm wide, and 4.5 cm high. At the center of the bottom of the knob 81 is a protruding cylinder with a diameter of 0.5 cm and a height of 0.8 cm. The back of the storage box 83 is an inverted trapezoidal platform with a thickness of 0.2 cm, an upper base of 6.5 cm, a lower base of 6 cm, and a height of 10 cm. A double-sided adhesive strip is attached to the back of the storage box 83 for securing it. The interior of the storage box 83 has a trapezoidal space with an upper base length of 58 mm, an upper base width of 22.5 mm, a lower base length of 55 mm, a lower base width of 20.5 mm, and a height of 60 mm. The lead sheet protective box 82 and the lead sheet protective box knob 81 together form the lead sheet protection system, while the storage box 83 facilitates the storage of the lead sheet protective box 82.

[0051] like Figure 1 As shown, the baby seat cushion 22 in this embodiment includes an E-shaped base plate 221, a vertical plate 222 disposed in the middle of the upper part of the E-shaped base plate 221, a T-shaped seat plate 223 horizontally mounted on the vertical plate 222, and side panels 224 disposed on both sides of the T-shaped seat plate 223. The lower part of the side panels 224 connects to both sides of the E-shaped base plate 221. A second slide rail is disposed on the left and right sides of the E-shaped base plate 221. The E-shaped base plate 221 is 28 cm long, 22 cm wide, and 3 cm thick. In the middle of the T-shaped seat plate 223, at a distance of 1.2 cm and 2.2 cm from the front, there is a cylindrical slot with a diameter of 0.51 cm and a depth of 1 cm. This slot is compatible with a cylinder with a diameter of 0.5 cm and a height of 0.8 cm at the bottom of the lead sheet protective box knob 81.

[0052] like Figure 2 , Figure 4As shown, in this embodiment, the back panel body 41 has multiple fixing holes 411 of different heights on one side. The fixing holes 411 are used to place the flat panel cassette holder 412. The flat panel cassette holder 412 has a right-angled slot with the opening horizontally upward. The right-angled slot is used to place a flat panel detector or cassette within 1.8cm. The right-angled slot is 36cm long, 1.8cm wide, and 2cm deep. The back of the flat panel cassette holder 412 has two bracket fixing pins 413. The bracket fixing pins 413 are 1cm in diameter, 2cm high, and 4cm apart. The flat panel cassette holder 412 is fixed to the back panel body 41 by inserting the bracket fixing pins 413 into the fixing holes 411. In this embodiment, the fixing holes 411 are cylindrical slots with a diameter of 1cm, a depth of 2cm, and a spacing of 4cm. There are 8 fixing holes 411.

[0053] In actual work, the use of the flat panel cassette holder 412 depends on the specific circumstances. If the flat panel cassette holder 412 is used, the thickness of the flat panel or cassette must be within 18cm, and the inspection position is restricted. The bracket fixing pin 413 of the flat panel cassette holder 412 needs to be inserted into the fixing hole 411 on the back plate for fixation. Then, a flat panel or cassette of the appropriate size can be placed inside for inspection.

[0054] If the flat panel cassette holder 412 is not used, the examination can also be performed with external equipment such as a vertical chest X-ray holder for fixing the detector, and more body positions can be used for the examination.

[0055] like Figure 1 , Figure 2 As shown, the rotatable support system in this embodiment includes a brake caster 91, a five-star caster seat 92, a telescopic gas spring 93, a tray with a handle, and a lifting handle 94. Lifting the lifting handle 94 upwards can achieve lifting.

[0056] The working principle of this utility model is as follows: The method of using the children's X-ray examination chair is to move the chair to a suitable position in the examination area using the brake caster 91, and then press the brake on the caster 01 to secure it. It is generally recommended to use an infant seat cushion 22 for infants aged 0-1 years and a toddler seat cushion 21 for older children. If the examinee is relatively tall, it is suggested to place the seat in the lower examination track; if the examinee is relatively short, it is suggested to place the seat in the higher examination track. However, it is recommended that the doctor make a reasonable choice based on the actual situation. Move the lifting handle 95 upwards to adjust the height of the children's X-ray examination chair, insert the selected seat cushion into the selected examination track, and then temporarily store the unselected seat cushion in an unused track. Insert the fixing pin 18 into the fixing hole of the selected examination track to fix the position of the seat cushion. Simultaneously, quickly secure the child's abdomen with the abdominal elastic band 24, ensuring the child's back rests against the headrest. Secure the child's hands with two hand elastic bands 25. Gently lift the child's head with one hand, placing it in a slightly tilted-back position. With the other hand, turn the adjustment knob 31 to unlock the headrest and adjust it up and down until the child's head rests on the curved support 52. Then, use the head elastic band to support the infant's chin instead of the examiner's hand. If the toddler seat cushion 21 is selected, the child's legs need to be secured in the leg elastic bands 23 to prevent the child from struggling and affecting the examination. If the infant seat cushion 22 is selected, the child does not need to have their legs in the leg elastic bands 23. The leg elastic bands 23 serve multiple purposes. It not only restrains the legs of the child being examined, but also serves to fix the unused seat plate on the unused sliding groove 16. The lead protective box knob 81 is inserted into the appropriate groove of the selected seat plate, and then the lead protective box 82 is placed between the legs of the child being examined. The lead protective box knob 81 is rotated so that one side of the lead protective box 82 is attached to the lead protective box knob 81. The lead protective box 82 is fixed by the force between the legs of the child being examined and the lead protective box knob 81. Its function is to protect the child's underdeveloped and fragile gonads. If the flat cassette holder 412 is used, it is inserted into the fixing hole 411 of the back plate body 41, and the flat cassette is placed in the groove of the flat cassette holder 412 for use. If the flat cassette holder 412 is not used, a flat cassette fixing device needs to be provided separately for fixing.

[0057] The present invention relates to a children's X-ray examination chair, the parts supporting the examination include: anteroposterior, lateral, and oblique views of the cervical spine; anteroposterior and lateral views of the chest; anteroposterior and lateral views of the airway; and anteroposterior view of the abdomen.

[0058] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A child x-ray examination chair comprising a seat, a restraining harness and a radiation shielding system, characterized in that: The application relates to a rotatable leg system and a modular seat cushion assembly, wherein the modular seat cushion assembly comprises a combined frame, a three-stage slot system and a replaceable seat cushion assembly, the combined frame comprises a base plate (11), a left side plate (12) connected with the base plate (11), a right side plate (13) and a back plate, and an adjustable height backrest headrest plate (40) is arranged on the back plate. The three-stage slot system comprises upper, middle and lower sliding grooves (14, 15 and 16) symmetrically arranged on the inner sides of the left side plate (12) and the right side plate (13). The replaceable seat cushion assembly comprises a baby seat cushion (21) for children over one year old and a baby seat cushion (22) for babies one year old or below, the baby seat cushion (21) is provided with first sliding rails on the left and right sides and matched with the middle sliding groove (15), the baby seat cushion (22) is provided with second sliding rails on the left and right sides and matched with the upper sliding groove (14), and the sliding rails on the left and right sides of the baby seat cushion (21) and the baby seat cushion (22) are matched with the lower sliding groove (16).

2. A child x-ray examination chair according to claim 1, characterized in that: The left side plate (12) and the right side plate (13) are provided with seat cushion fixing holes (17) penetrating through the left and right sides at positions opposite to the upper sliding groove (14) and the middle sliding groove (15), the baby seat cushion (22) and the baby seat cushion (21) are respectively provided with seat cushion pin holes at positions corresponding to the seat cushion fixing holes (17), and a plastic spring (10) is fixed to the outer side of the left side plate (12) or the right side plate (13), the other end of the plastic spring (10) is connected with a fixing pin (18) matched with the seat cushion fixing holes (17) and the seat cushion pin holes.

3. A child x-ray examination chair according to claim 1, characterized in that: The back plate comprises a back plate body (41), a rectangular recess (45) is arranged in the middle of the front part of the back plate body (41), two symmetrical guide groove vertical plates (43) are arranged on the two sides of the upper part of the back plate body (41), the inner sides of the two guide groove vertical plates (43) and the left and right sides forming the rectangular recess (45) are provided with groove rails (44) from top to bottom and in the same straight line, and a long strip-shaped adjusting vertical hole (42) is arranged at the rear part of the back plate body (41). The backrest headrest plate comprises a headrest plate body (51), an arc-shaped support (52) for supporting the head and neck of a human body is arranged on the upper part of the headrest plate body (51), bolt holes are arranged on the lower part of the headrest plate body (51), and embedding edges matched with the groove rails (44) are arranged on the two sides of the headrest plate body (51), the backrest headrest plate is embedded and inserted into the groove rails (44) from top to bottom through the embedding edges arranged on the two sides, the adjusting knob (31) passes through the long strip-shaped adjusting vertical hole (42) arranged at the rear part of the back plate body (41) and the bolt holes arranged on the lower part of the headrest plate body (51) and is fixed through a nut.

4. A child x-ray examination chair according to claim 1, characterized in that: The left side plate (12) and the right side plate (13) are respectively provided with a left and right penetrating cutout (19) at the front lower part close to the base plate (11) for mounting a leg elastic band through hole (61) of a leg elastic band (23).

5. A child x-ray examination chair according to claim 3, characterized in that: The two guide slot vertical plates (43) are sequentially provided with symmetrical abdominal elastic band through holes (71), hand elastic band through holes (72) and head elastic band through holes (73) from bottom to top, respectively, and the abdominal elastic band through holes (71), the hand elastic band through holes (72) and the head elastic band through holes (73) are respectively provided with abdominal elastic bands (24), hand elastic bands (25) and head elastic bands (26) for restraining the abdomen, the hands and the head.

6. A child x-ray examination chair according to claim 1, characterized in that: The radiation protection system comprises a lead protective box knob (81) and a lead protective box (82), one side of the left side plate (12) or the right side plate (13) is provided with a storage box (83), the lead protective box knob (81) is installed on the middle of the upper surface of the infant seat cushion (21) and the baby seat cushion (22) for shielding the crotch, the lead protective box (82) is placed in the storage box (83), and when used, the two legs of the inspector are placed between the rear part of the lead protective box knob (81) to form a self-adaptive angle adjustment.

7. A child x-ray examination chair according to claim 1, characterized in that: The baby seat cushion (22) comprises an E-shaped bottom plate (221), a vertical plate (222) arranged at the middle of the upper portion of the E-shaped bottom plate (221), a T-shaped seat plate (223) horizontally arranged on the vertical plate (222), and side plates (224) arranged on both sides of the T-shaped seat plate (223), the lower portions of the side plates (224) are connected to both sides of the E-shaped bottom plate (221), and the second slide rails are arranged on the left and right sides of the E-shaped bottom plate (221).

8. A child x-ray examination chair according to claim 3, characterized in that: The back plate body (41) is provided with a plurality of fixing holes (411) with different heights on one side, the fixing holes (411) are used for placing flat film cassette holders (412), the flat film cassette holders (412) are provided with straight angle grooves with notches horizontally upwards, the back surfaces of the flat film cassette holders (412) are provided with holder fixing pins (413), and the flat film cassette holders (412) are fixed on the back plate body (41) by inserting the holder fixing pins (413) into the fixing holes (411).

9. A child x-ray examination chair according to claim 1, characterized in that: The rotatable supporting leg system comprises a brake caster (91), a five-star caster seat (92), a telescopic gas rod (93), a tray with a handle and a lifting handle (94).

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