Prone-position-adjustable examining table for ultrasonic examination of children

Abstract

The invention discloses a prone-position-adjustable examination bed for ultrasonic examination of children (especially newborns), which comprises a bed body, a left limiting table and a right limiting table, the left limiting table and the right limiting table protrude upwards and are fixedly arranged on the left side and the right side of the front part of the bed body, and an upper body space for limiting the body above the abdomen is formed between the left limiting table and the right limiting table. The examination couch further comprises a lower body limiting table arranged on the couch body at the rear portion of the upper body space, the lower body limiting table can slide front and back and is fixed, a left expansion and contraction piece and a right expansion and contraction piece which can transversely expand and contract are arranged on the right side of the left limiting table and the left side of the right limiting table respectively, and when the left expansion and contraction piece and the right expansion and contraction piece expand, the upper body space becomes an upper body side-lying space. When the left expansion piece and the right expansion piece retract, the upper body space becomes an upper body supine space, when the lower body limiting table moves forwards to a proper position, a left-side lying thigh limiting space is formed between the lower body limiting table and the left limiting table, a right-side lying thigh limiting space is formed between the lower body limiting table and the right limiting table, and the lower body limiting table retracts to form a supine bed surface.

Description

Technical Field

[0001] The invention relates to an examination bed with adjustable lying posture for ultrasonic examination of children, belonging to the technical field of medical equipment. Background Art

[0002] Ultrasonic examination is performed when the person being examined is fully awake. Thoracic and abdominal examinations require the person to lie in three different lying positions: supine, left side, and right side. Generally, adults can follow the doctor's instructions to switch and maintain the above lying positions, but the examination of children is different, especially newborns. It is difficult or even impossible to ask them to maintain a certain lying position to cooperate with the doctor's examination. Medical staff need to free up their hands to control it, which brings great difficulties to the examination. Not only does it seriously slow down the examination speed, but the examination results may also be affected by the constant rolling of the person being examined.

[0003] To solve the above problems, many technical solutions have been proposed in the prior art, most of which are to set up an examination bed that can control the child. However, most of them have the following defects: First, it cannot meet the control requirements of the above three lying positions at the same time; second, it cannot adapt to large age changes; third, it is inconvenient to operate and use, mainly because the spacing control is cumbersome, time-consuming and labor-intensive.

[0004] For example, the utility model patent document, application number 201620310944.3, entitled "An Ultrasonic Examination Table for Infants and Young Children's Hip Joints," discloses an ultrasonic examination table for infant and young children's hip joints, comprising a trunk fixation device, an angle-maintaining device, and a mattress. Trunk fixations are located on both sides of the mattress's upper surface to secure the infant's range of motion, and an angle-maintaining device is located between the two trunk fixations. The angle-maintaining device includes an adjustable pillow capable of maintaining the desired angle for testing. This utility model also stabilizes the infant's body and maintains the infant's curvature, significantly reducing the workload of medical staff and allowing them to focus more fully on the testing process. This minimizes errors in the test results and ensures the doctor's accurate assessment of the situation.

[0005] From the perspective of all the technical contents disclosed in this utility model, it can only achieve one side-lying position, cannot meet the needs of three sleeping positions, cannot adapt to large age changes, and needs to add or remove adjustable pillows 22 one by one when adjusting the space to accommodate babies of different weights, which is a cumbersome operation. Summary of the Invention

[0006] The problem to be solved by the present invention is: how to enable the examined child, especially a newborn, to conveniently switch between three lying positions: supine, left side and right side, and to maintain control over the three lying positions.

[0007] In view of the above problems, the technical solution proposed by the present invention is: An examination bed with adjustable lying position for ultrasonic examination of children comprises a bed body, and an upwardly protruding left and right limit platform fixedly arranged on the left and right sides of the front upper surface of the bed body, wherein an upper torso space for limiting the torso above the abdomen is formed between the left and right limit platforms. The examination bed also includes a lower torso limiting platform provided on the bed body at the rear of the upper torso space, wherein the lower torso limiting platform can slide back and forth at the rear of the bed body and be temporarily fixed in a set area. A left expansion and contraction member and a right expansion and contraction member that can expand and contract laterally are respectively provided on the right side of the left limit platform and the left side of the right limit platform. When the left expansion and contraction member expand toward each other, the upper torso space becomes an upper torso side-lying space between the left expansion and contraction member. When the left expansion and contraction member and the right expansion and contraction member retract, the upper torso space becomes an upper torso supine space between the left expansion and contraction member. When the lower torso limiting platform moves forward to a suitable position, a buttocks limiting space is formed between it and the upper torso space, a left-side thigh limiting space is formed between it and the rear end of the left limit platform, and a right-side thigh limiting space is formed between it and the rear end of the right limit platform. When the lower torso limiting platform retracts to the rear end of the bed body, the bed surface of the upper torso supine space and the rear bed surface of the bed body form a supine bed surface.

[0008] A left side upright plate and a right side upright plate are respectively provided in front of the left limit platform and the right limit platform, and the front side surfaces of the left side upright plate and the right side upright plate form the left-side lying thigh limit space and the right-side lying thigh limit space respectively between the lower torso limit platform, and the left side upright plate and the right side upright plate can move forward and backward relative to the left limit platform and the right limit platform respectively.

[0009] A left double-axis air pump and a right double-axis air pump that can control the telescopic stroke of the telescopic shaft are respectively provided in the front of the left limit platform and the right limit platform. The two telescopic shafts of the left double-axis air pump are connected to the left vertical plate, and the two telescopic shafts of the right double-axis air pump are connected to the right vertical plate.

[0010] The rear part of the lower body limit platform is provided with two parallel guide rods extending backward, a fixing frame is provided at the rear end of the bed body, a guide positioning block is provided on the fixing frame, and two guide holes are provided on the guide positioning block 23. The two guide rods are respectively inserted into the two guide holes and can slide back and forth.

[0011] A ratchet is axially provided on the upper end surface of the guide rod, and two through holes are provided on the upper surface of the guide positioning block, which are respectively vertically connected to the two guide holes. A pawl body with two rod-shaped pawls is provided. After the two rod-shaped pawls are respectively inserted into the two through holes, the pawl tips at the lower ends fall between the adjacent ratchets on the front and rear of the guide rod, thereby implementing a backward stop for the guide rod.

[0012] The left and right ends of the guide positioning block are respectively provided with rotating shafts, and the left and right sides of the guide positioning block space are respectively provided with shaft holes, and the rotating shafts at both ends of the guide positioning block are respectively installed in the shaft holes, so that the lower body limit platform and the guide rod can rotate up and down.

[0013] The left expansion and contraction part includes a left main airbag arranged on the right side of the left limit platform and a left auxiliary airbag arranged on the right side of the left main airbag. The right expansion and contraction part includes a right main airbag arranged on the left side of the right limit platform and a right auxiliary airbag arranged on the left side of the right main airbag. The left auxiliary airbag and the right auxiliary airbag are respectively pressed against both sides of the human body's upper torso close to the head.

[0014] A horizontal left strap is provided on the right side of the left main airbag, and a left locking opening connected front to back is provided on the left side of the left auxiliary airbag. The left strap passes through the left locking opening of the left auxiliary airbag to bind the left auxiliary airbag to the right side of the left main airbag and can slide back and forth along the left strap; a horizontal right strap is provided on the left side of the right main airbag, and a right locking opening connected front to back is provided on the right side of the right auxiliary airbag. The right strap passes through the right locking opening of the right auxiliary airbag to bind the right auxiliary airbag to the left side of the right main airbag and can slide back and forth along the right strap.

[0015] There are two left auxiliary airbags and two right auxiliary airbags. The total front-to-back length of the two left auxiliary airbags is smaller than the length of the left main airbag, so that when a person lies on his side, there is space for left-side exploration between the upper torso and the left main airbag; the total front-to-back length of the two right auxiliary airbags is smaller than the front-to-back length of the right main airbag, so that when a person lies on his side, there is space for right-side exploration between the upper torso and the right main airbag.

[0016] The supine bed surface is paved with a supine airbag, which is inflated and raised when a human body is examined in a supine position.

[0017] Beneficial effects: The examined child can switch between three lying positions: supine, left side and right side, and the three lying positions of the child, especially the newborn, can be maintained under control. The switching control of the lying position can be achieved by pressing the air valve button and pushing the lower body limit table. The operation is very convenient, which can ensure that the doctor can focus on observing and analyzing the images and make correct pathological judgments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic top view of the examination bed according to the first embodiment, showing the child being examined lying on his right side; Figure 2 This is a three-dimensional schematic diagram of the examination bed according to the first embodiment, showing that the left expansion member and the right expansion member have expanded toward each other; Figure 3 This is a three-dimensional schematic diagram of the left vertical plate and the right vertical plate described in Example 1; Figure 4 This is a schematic diagram of the assembly of the lower body limit platform, guide rod, ratchet, and guide positioning block described in Example 1; Figure 5 This is a three-dimensional schematic diagram of the pawl body described in Example 1; Figure 6 for Figure 1 A partial schematic diagram of Figure 7 This is a three-dimensional schematic diagram of the examination bed according to the first embodiment, in which the left expansion and contraction member and the right expansion and contraction member are shown to have been retracted; Figure 8 Schematic diagram of the left auxiliary airbag and the right auxiliary airbag according to the first embodiment; Figure 9 This is a schematic top view of the examination bed described in Example 1, showing the child being examined lying on his left side; Figure 10 This is a schematic top view of the examination bed according to the first embodiment, showing a child being examined lying on his back; Figure 11 This is a perspective schematic diagram of the examination bed according to the second embodiment, showing a situation where the left and right expansion and contraction members have been retracted and the supine airbag is not inflated; Figure 12 This is a perspective schematic diagram of the examination bed according to the second embodiment, showing that the left and right expansion and contraction members have been retracted, the lower body limit platform has been retracted to the bed body, the supine bed surface has been formed, and the supine airbag has been inflated, suitable for supine examinations; Figure 13 This is a schematic top view of the examination bed according to the second embodiment, showing a child being examined lying on his left side with the supine airbag not inflated; Figure 14 This is a schematic top view of the examination bed described in Example 2, showing a child being examined lying on his back with the supine airbag inflated.

[0019] In the figure: 1. Bed body; 101. Upper body side lying space; 102. Upper body supine lying space; 103. Hip limit space; 104. Thigh limit space for left side lying; 105. Thigh limit space for right side lying; 106. Left side probing space; 107. Right side probing space; 108. Supine bed surface; 2. Left limit platform; 3. Right limit platform; 4. Left expansion and contraction piece; 401. Left main airbag; 402. Left auxiliary airbag; 4021. Left lock; 403. Left strap; 5. Right expansion and contraction piece; 50 1. Right main airbag; 502. Right auxiliary airbag; 5021. Right lock; 503. Right strap; 6. Left vertical plate; 601. Left dual-axis air pump; 7. Right vertical plate; 701. Right dual-axis air pump; 8. Lower torso limiter; 801. Guide rod; 8011. Ratchet; 9. Guide positioning block; 901. Guide hole; 902. Through hole; 903. Rotating shaft; 10. Ratchet body; 1001. Rod-shaped ratchet; 11. Fixing frame; 12. Tension spring; 13. Telescopic shaft; 14. Supine airbag. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0021] Example 1 like Figure 1 、2 As shown in Figures 6, 9, and 10, an examination couch with adjustable lying position for ultrasound examinations of children comprises a couch body 1, and upwardly protruding left and right limit platforms 2 and 3 fixedly disposed on the left and right sides of the front upper surface of the couch body 1. The left and right limit platforms 2 and 3 define an upper torso space between the left and right limit platforms, which restrains the torso above the abdomen. The couch body 1 further comprises a lower torso limit platform 8 disposed on the couch body 1 at the rear of the upper torso space. The lower torso limit platform 8 can slide back and forth at the rear of the couch body 1 and be temporarily fixed in a designated area. Left and right expansion and contraction members 4 and 5, capable of laterally expanding and contracting, are disposed to the right of the left limit platform 2 and to the left of the right limit platform 3, respectively. When the left and right expansion and contraction members 4 and 5 expand toward each other, the upper torso space becomes a side-lying space 101 between the left and right expansion and contraction members 4 and 5. When the left and right expansion and contraction members 4 and 5 retract, the upper torso space becomes a supine space 102 between the left and right expansion and contraction members 4 and 5. When the lower torso limiting platform 8 moves forward to a suitable position, a buttocks limiting space 103 is formed between it and the upper torso space, a left-side thigh limiting space 104 is formed between it and the rear end of the left limiting platform 2, and a right-side thigh limiting space 105 is formed between it and the rear end of the right limiting platform 3. When the lower torso limiting platform 8 moves backward to the rear end of the bed body 1, the upper torso supine lying space 102 and the rear surface of the bed body 1 form a supine lying surface 108.

[0022] like Figure 7 、 10 As shown, when a frontal chest and abdominal examination is to be performed, the lower torso limiting platform 8 is retracted to the rear end of the bed body 1, and the left and right expansion and contraction members 4 and 5 are in a retracted state, forming a supine upper torso space 102 between the left and right expansion and contraction members 4 and 5. The bed body 1 has a supine bed surface 108 for the child to be examined to lie supine, and the child to be examined lies supine to receive a frontal chest and abdominal ultrasound examination. like Figure 2 、 9 As shown, when the right side of the chest and abdomen is to be examined, the examined child lies on the left side, and the left and right expansion and contraction members 4 and 5 expand toward each other, forming an upper torso side-lying space 101 between the left and right expansion and contraction members 4 and 5, thereby restricting the child's upper torso. At the same time, the lower torso limiting platform 8 is pushed forward to a position where it can support the child's buttocks, thereby forming a left-side thigh limiting space 104 between the lower torso limiting platform 8 and the rear end of the left limiting platform 2, thereby restricting the child's right thigh to be pressed against the left thigh. Through the above measures, the examined child is constrained to maintain a left-side lying posture while undergoing an ultrasonic examination of the right side of the chest and abdomen. like Figure 1 、 2As shown, when the left side of the chest and abdomen is to be examined, the left expansion and contraction member 4 and the right expansion and contraction member 5 are retracted, the lower torso limit platform 8 moves backward, and the examined child lies on the right side. The left expansion and contraction member 4 and the right expansion and contraction member 5 expand toward each other, forming an upper torso side-lying space 101 between the left expansion and contraction member 4 and the right expansion and contraction member 5, thereby restricting the upper torso of the child. At the same time, the lower torso limit platform 8 is pushed forward to a position that can support the child's buttocks, and a right side-lying thigh limit space 105 is formed between the lower torso limit platform 8 and the rear end of the right limit platform 3, thereby restricting the child's left thigh to be pressed against the right thigh. Through the above measures, the examined child is restricted to maintain a right side-lying posture and receive an ultrasonic examination of the right side of the chest and abdomen.

[0023] The widths of the upper torso side-lying space 101 and the upper torso supine space 102 can be controlled by the degree of expansion of the left expansion and contraction part 4 and the right expansion and contraction part 5, and the widths of the left-side thigh limiting space 104 and the right-side thigh limiting space 105 can be controlled by the advance and retreat of the lower torso limiting platform 8, thereby realizing the sleeping posture control of children of different fat and thin sizes.

[0024] In this way, the child being examined can conveniently switch between the three lying positions of supine, left side and right side, and the three lying positions of the child, especially a newborn, can be reliably maintained and controlled.

[0025] like Figure 2 、 3 As shown, a left upright board 6 and a right upright board 7 are respectively provided in front of the left restraint platform 2 and the right restraint platform 3. The front side surfaces of the left upright board 6 and the right upright board 7 form a left-side thigh restraint space 104 and a right-side thigh restraint space 105 respectively between the left upright board 6 and the right upright board 7 and the lower torso restraint platform 8. The left upright board 6 and the right upright board 7 can move forward and backward relative to the left restraint platform 2 and the right restraint platform 3, respectively. In this way, the left upright board 6 and the right upright board 7 can move forward and backward in coordination with the lower torso restraint platform 8 to accommodate children of different ages and heights.

[0026] Inside the front of the left limit platform 2 and the front of the right limit platform 3, respectively, are located a left dual-axis air pump 601 and a right dual-axis air pump 701, which can control the telescopic travel of the telescopic shaft 13. The two telescopic shafts 13 of the left dual-axis air pump 601 are connected to the left vertical plate 6, and the two telescopic shafts 13 of the right dual-axis air pump 701 are connected to the right vertical plate 7. When in use, the advance and retreat of the telescopic shaft 13 and the travel limit can be achieved by simply pressing the air valve button. The dual-axis air pump is a commercially available prior art product, and no further description of its structural principle is required here.

[0027] like Figure 2 、 4As shown in Figures 5, 6, and 7, two parallel guide rods 801 extending backward are provided at the rear of the lower torso limiter 8. A fixing frame 11 is provided at the rear end of the bed body 1. A guide positioning block 9 is provided on the fixing frame 11. The guide positioning block 9 has two guide holes 901. The two guide rods 801 are respectively inserted into the two guide holes 901 and can slide forward and backward. Ratchet teeth 8011 are axially provided on the upper end surface of the guide rods 801. Two through holes 902 are provided on the upper surface of the guide positioning block 9, each of which is vertically connected to the two guide holes 901. A pawl body 10 having two rod-shaped pawls 1001 is provided. After the two rod-shaped pawls 1001 are inserted into the two through holes 902, the tips of the pawls at their lower ends fall between the adjacent ratchet teeth 8011 on the front and rear of the guide rods 801, thus preventing the guide rods 801 from moving backward. When the lower torso limiter 8 needs to be pushed backward, the pawl body 10 only needs to be lifted upward.

[0028] The claw tip falls into the space between the adjacent ratchet teeth 8011 in front and behind the guide rod 801 by gravity, or by the tension spring 12.

[0029] Preferably, the left and right ends of the guide positioning block 9 are respectively provided with a rotating shaft 903, and the left and right sides of the space where the guide positioning block 9 is provided on the fixed frame 11 are respectively provided with an axis hole. The rotating shafts 903 at both ends of the guide positioning block 9 are respectively installed in the axis holes, so that the lower torso limit plate 8 and the guide rod 801 can rotate up and down. When a supine examination is required, the lower torso limit plate 8 is rotated upward and raised until the guide rod 801 is in an upright position. Then, the guide rod 801 is inserted downward by utilizing the height difference between the bed surface and the ground. This can prevent the guide rod 801 from occupying the space behind the bed body.

[0030] like Figure 2 、 7 As shown in Figures 8 and 9, the left expansion and contraction member 4 comprises a left main airbag 401 disposed on the right side of the left limit platform 2 and a left auxiliary airbag 402 disposed on the right side of the left main airbag 401. The right expansion and contraction member 5 comprises a right main airbag 501 disposed on the left side of the right limit platform 3 and a right auxiliary airbag 502 disposed on the left side of the right main airbag 501. The left auxiliary airbag 402 and the right auxiliary airbag 502 are respectively pressed against the sides of the upper torso near the head. In use, the left and right expansion and contraction members 4 and 5 can be expanded or retracted by simply pressing a valve button (not shown; it can be located anywhere within the bed body for easy access), thereby adjusting the width of the upper torso side-lying space 101. This makes use very convenient and time-saving.

[0031] Here, the left auxiliary airbag 402 and the right auxiliary airbag 502 are actually used to slightly adjust the width of the upper body side-lying space 101 according to needs, which can basically meet the adjustment requirements of the size and fatness of the child's upper body.

[0032] It should be noted that there is no connection structure between the lower bottoms of the left main airbag 401, the left auxiliary airbag 402, the right main airbag 501 and the right auxiliary airbag 502 and the bed body 1 to ensure that they can expand or retract freely.

[0033] A horizontal left strap 403 is provided on the right side of the left main airbag 401, and a left locking opening 4021 is provided on the left side of the left auxiliary airbag 402. The left strap 403 passes through the left locking opening 4021 of the left auxiliary airbag 402, securing the left auxiliary airbag 402 to the right side of the left main airbag 401 and allowing the user to slide forward and backward along the left strap 403. A horizontal right strap 503 is provided on the left side of the right main airbag 501, and a right locking opening 5021 is provided on the right side of the right auxiliary airbag 502. The right strap 503 passes through the right locking opening 5021 of the right auxiliary airbag 502, securing the right auxiliary airbag 502 to the left side of the right main airbag 501 and allowing the user to slide forward and backward along the right strap 503. This arrangement allows the user to adjust the chest and abdomen control position as needed when lying on their side.

[0034] Preferably, there are two left auxiliary airbags 402 and two right auxiliary airbags 502. The total front-to-back length of the two left auxiliary airbags 402 is less than the length of the left main airbag 401, so that when a person lies on their side, a left side exploration space 106 is left between the upper torso and the left main airbag 401; the total front-to-back length of the two right auxiliary airbags 502 is less than the front-to-back length of the right main airbag 501, so that when a person lies on their side, a right side exploration space 107 is left between the upper torso and the right main airbag 501. In this way, when the child lies on their side, the mouse-like probe can be lowered to the chest, abdomen, or back of the child being examined for examination, thereby expanding the examination range when lying on the left or right side as needed.

[0035] Example 2 like Figure 11 As shown in FIG. 14 , this embodiment differs from the first embodiment in that a supine bed surface 108 is provided with a supine airbag 14. When the patient is in a supine position for examination, the airbag 14 inflates and rises. This is because the left and right restraining platforms 2 and 3 are relatively high, resulting in a deeper space between the upper torso of the patient. When the patient is in a supine position, the patient is lower than these two platforms, making the examination inconvenient. When the supine airbag 14 is inflated and raised, it can moderately lift the patient upward, facilitating the examination.

[0036] Example 3 A replaceable anti-contamination sheet (not shown in the figure) is laid on the surface of the examination bed.

[0037] In the above embodiment, it is necessary to further explain that: 1. All airbags can be inflated using the inspection room's own air source. For ease of illustration and considering that this is a conventional setup, the air pipes connecting all airbags to the air source are not shown in the attached drawings, nor are the corresponding air valve buttons. 2. The surface of the bed body, the surface of the left and right limit platforms 2 and 3, the rear side surfaces of the left and right vertical boards 6 and 7, and the front side surface of the lower body limit platform 8 can all be provided with a cushion layer (not shown in the figure).

[0038] The above embodiments are only used to more clearly describe the present invention and cannot be regarded as limiting the scope of protection covered by the present invention. Any modifications in equivalent forms should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. An examination bed with adjustable lying position for ultrasonic examination of children, comprising a bed body (1), a left limit platform (2) and a right limit platform (3) fixedly arranged on the left and right sides of the front of the upper surface of the bed body (1), and protruding upwards, wherein an upper body space for limiting the upper body of the abdomen is formed between the left limit platform (2) and the right limit platform (3), and characterized in that: The lower torso limiting platform (8) is provided on the bed body (1) at the rear of the upper torso space. The lower torso limiting platform (8) can slide forward and backward at the rear of the bed body (1) and be temporarily fixed in a set area. A left expansion member (4) and a right expansion member (5) capable of expanding and contracting laterally are provided on the right side of the left expansion member (2) and the left side of the right expansion member (3). When the left expansion member (4) and the right expansion member (5) expand toward each other, the upper torso space becomes the upper torso side-lying space (101) between the left expansion member (4) and the right expansion member (5). When the left expansion member (4) and the right expansion member (5) retract, the upper torso space becomes the upper torso side-lying space (101) between the left expansion member (4) and the right expansion member (5). It becomes the upper body supine space (102) between the left expansion and contraction member (4) and the right expansion and contraction member (5). When the lower body limit platform (8) moves forward to a suitable position, a buttocks limit space (103) is formed between it and the upper body space, a left side thigh limit space (104) is formed between it and the rear end of the left limit platform (2), and a right side thigh limit space (105) is formed between it and the rear end of the right limit platform (3). When the lower body limit platform (8) retreats to the rear end of the bed body (1), the bed surface of the upper body supine space (102) and the rear bed surface of the bed body (1) form a supine bed surface (108).

2. The examination bed with adjustable lying position for ultrasound examination of children according to claim 1, characterized in that: A left side upright plate (6) and a right side upright plate (7) are respectively provided in front of the left limit platform (2) and the right limit platform (3). The front side surfaces of the left side upright plate (6) and the right side upright plate (7) respectively form the left side lying thigh limit space (104) and the right side lying thigh limit space (105) between the lower body limit platform (8). The left side upright plate (6) and the right side upright plate (7) can move forward and backward relative to the left limit platform (2) and the right limit platform (3).

3. The examination bed with adjustable lying position for ultrasound examination of children according to claim 2, characterized in that: A left double-axis air pump (601) and a right double-axis air pump (701) capable of controlling the telescopic stroke of the telescopic shaft (13) are respectively provided in the front of the left limit platform (2) and the front of the right limit platform (3). The two telescopic shafts (13) of the left double-axis air pump (601) are connected to the left vertical plate (6), and the two telescopic shafts (13) of the right double-axis air pump (701) are connected to the right vertical plate (7).

4. The examination couch with adjustable lying position for ultrasound examination of children according to claim 1, characterized in that: The rear portion of the lower body limiting platform (8) is provided with two guide rods (801) extending in parallel and backward. A fixing frame (11) is provided at the rear end of the bed body (1). A guide positioning block (9) is provided on the fixing frame (11). Two guide holes (901) are provided on the guide positioning block 23. The two guide rods (801) are respectively inserted into the two guide holes (901) and can slide forward and backward.

5. The examination bed with adjustable lying position for ultrasound examination of children according to claim 4, characterized in that: A ratchet (8011) is axially provided on the upper end surface of the guide rod (801), and two through holes (902) vertically connected to the two guide holes (901) are provided on the upper surface of the guide positioning block (9). A ratchet body (10) having two rod-shaped ratchets (1001) is provided. After the two rod-shaped ratchets (1001) are respectively inserted into the two through holes (902), the claw tips at the lower ends fall between the ratchet teeth (8011) adjacent to each other on the front and rear of the guide rod (801), thereby implementing a backward stop for the guide rod (801).

6. The examination couch with adjustable lying position for ultrasound examination of children according to claim 4, characterized in that: The left and right ends of the guide positioning block (9) are respectively provided with rotating shafts (903), and the left and right sides of the space where the guide positioning block (9) is set on the fixing frame (11) are respectively provided with shaft holes, and the rotating shafts (903) at both ends of the guide positioning block (9) are respectively installed in the shaft holes, so that the lower body limiting platform (8) and the guide rod (801) can rotate up and down.

7. The examination couch with adjustable lying position for children's ultrasound examination according to claim 1, characterized in that: The left expansion and contraction member (4) comprises a left main airbag (401) arranged on the right side of the left limit platform (2) and a left auxiliary airbag (402) arranged on the right side of the left main airbag (401). The right expansion and contraction member (5) comprises a right main airbag (501) arranged on the left side of the right limit platform (3) and a right auxiliary airbag (502) arranged on the left side of the right main airbag (501). The left auxiliary airbag (402) and the right auxiliary airbag (502) are respectively pressed against both sides of the upper trunk of the human body close to the head.

8. The examination couch with adjustable lying position for ultrasound examination of children according to claim 7, characterized in that: A horizontal left strap (403) is provided on the right side of the left main airbag (401), and a left locking opening (4021) communicating front to back is provided on the left side of the left auxiliary airbag (402). The left strap (403) passes through the left locking opening (4021) of the left auxiliary airbag (402) to bind the left auxiliary airbag (402) to the right side of the left main airbag (401) and can slide back and forth along the left strap (403); a horizontal right strap (503) is provided on the left side of the right main airbag (501), and a right locking opening (5021) communicating front to back is provided on the right side of the right auxiliary airbag (502). The right strap (503) passes through the right locking opening (5021) of the right auxiliary airbag (502) to bind the right auxiliary airbag (502) to the left side of the right main airbag (501) and can slide back and forth along the right strap (503).

9. The examination couch with adjustable lying position for ultrasound examination of children according to claim 8, characterized in that: There are two left auxiliary airbags (402) and two right auxiliary airbags (502). The total front-to-back length of the two left auxiliary airbags (402) is less than the length of the left main airbag (401), so that when a person lies on his side, a left side exploration space (106) can be left between the upper torso and the left main airbag (401); the total front-to-back length of the two right auxiliary airbags (502) is less than the front-to-back length of the right main airbag (501), so that when a person lies on his side, a right side exploration space (107) can be left between the upper torso and the right main airbag (501).

10. The examination couch with adjustable lying position for children's ultrasound examination according to claim 1, characterized in that: The supine bed surface (108) is provided with a supine airbag (14). When a person lies on his back for examination, the supine airbag (14) is inflated and raised.

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