A fixing device for upper limbs for renal dynamic imaging

Abstract

This utility model relates to the field of medical device technology and aims to solve the problems of existing technologies, such as shoulder muscle fatigue and postural displacement caused by patients actively maintaining their arms raised, large space occupation, interference with examination bed movement, inability to adapt to patients of different body types, and limb numbness or postural displacement due to prolonged fixed posture. It provides an upper limb fixation device for renal dynamic imaging, comprising an adjustment component; a movable component is provided laterally on the adjustment component, slidably connected to the adjustment component, and slidingly engaged along the axis of the adjustment component; a fixing component for fixing the upper limb is provided radially on the movable component, and the fixing component is detachably fixedly connected to the radial direction of the movable component. The advantages of this utility model are that it facilitates assisting patients in actively maintaining their arms raised, occupies little space, does not interfere with examination bed movement, can adapt to patients of different body types, and reduces the likelihood of limb numbness or postural displacement.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an upper limb fixation device for renal dynamic imaging. Background Technology

[0002] In renal dynamic imaging examination, patients need to raise both arms to avoid obstructing the imaging field of the kidneys. However, in traditional methods, patients need to actively maintain the raised position, which can easily cause shoulder muscle fatigue. Patients with frozen shoulder, elderly patients, and children have insufficient muscle strength. Prolonged fixed posture can cause numbness in the limbs or postural deviation. Existing fixation braces lack ergonomic design and are not comfortable.

[0003] Currently, clinical practice often uses simple stents or manual fixation, which lack adaptive adjustment functions for patients of different body types and effective pressure distribution design. Utility Model Content

[0004] The present invention aims to provide an upper limb fixation device for renal dynamic imaging, in order to solve the problems of existing technologies, such as patients actively maintaining their arms raised, which leads to shoulder muscle fatigue and body position deviation, large space occupation, affecting the movement of the examination bed, inability to adapt to patients of different body types, and easy numbness or body position deviation of limbs due to prolonged fixed posture.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This utility model provides an upper limb fixation device for dynamic renal imaging, which includes an adjustment component;

[0007] The adjustment assembly is provided with a movable component in the lateral direction. The movable component is slidably connected to the adjustment assembly and slides along the axial direction of the adjustment assembly.

[0008] The aforementioned movable component is provided with a fixing component for fixing the upper limb in the radial direction, and the fixing component is detachably fixedly connected to the aforementioned movable component in the radial direction.

[0009] In use, the fixation device is placed on the existing medical equipment bed and fixed in place. The patient's upper limb is fixed on the fixation component. According to the length of the patient's upper limb, the moving component is pushed to move along the axis of the adjusting component. When the moving component moves to the appropriate position and is fixed, it helps the patient maintain the posture of raising both arms, which is convenient for the medical equipment to examine the patient.

[0010] The upper limb fixation device for renal dynamic imaging disclosed in this embodiment is conveniently and detachably fixed to a standard examination bed, reducing the equipment's footprint. At the same time, it can be slidably adjusted, which makes it easy to adjust the raised position of both arms according to the length of the patient's upper limbs, thus expanding the scope of application. As a result, the upper limb fixation device for renal dynamic imaging has the beneficial effects of conveniently assisting patients to actively maintain the raised arms, occupying little space, not affecting the movement of the examination bed, adapting to patients of different body types, and preventing patients' limbs from becoming numb or their body position from shifting.

[0011] Optionally, the adjustment component has a first slide groove and a second slide groove, and the two ends of the moving component are slidably connected to the first slide groove and the second slide groove, respectively.

[0012] With this configuration, the first and second slides allow the moving component to move along the grooves of the first and second slides, making it convenient to adjust the position of the moving component according to the length of the patient's upper limb, thereby assisting the patient in maintaining the raised arms posture, and making it suitable for different groups of people.

[0013] Optionally: The top of the first slide groove and the second slide groove are provided with a first slide rail and a second slide rail. The first slide rail and the second slide rail are parallel to each other and spaced apart. The bottom surfaces of both ends of the moving component are provided with a first C-shaped slider and a second C-shaped slider. The first C-shaped slider is slidably clamped on the first slide rail, and the second C-shaped slider is slidably clamped on the second slide rail.

[0014] With this configuration, the cooperation between the first C-shaped slider and the second C-shaped slider and the first slide rail and the second slide rail makes the movement of the moving component smoother, and also provides a guiding function.

[0015] Optionally, the top surfaces of the first slide rail and the second slide rail are provided with a plurality of limiting holes, which are evenly distributed along the axial direction of the first slide rail and the second slide rail.

[0016] With this configuration, when the operator pushes the aforementioned moving component to the appropriate position, the position of the moving component can be restricted by inserting a limiting rod into the limiting hole on both sides of the moving component, making it easier for the patient to maintain the raised arms position.

[0017] Optionally, both the first slide and the second slide have guide rods axially at their bottoms. A first fixing block and a second fixing block are fixedly connected to both ends of the guide rods. Both the first fixing block and the second fixing block are fixedly connected to the bottom of the first slide or the second slide. Both ends of the moving component are slidably connected to the guide rods of the first slide and the second slide.

[0018] With this configuration, the guide rod facilitates the guiding function of the moving component and also helps to combine the moving component and the adjusting component into a whole, making it easy to install and disassemble during use and preventing the moving component from accidentally sliding out during movement.

[0019] Optionally: A plurality of locking holes are provided at the connection between the bottom of the first slide and the wall of the second slide, and the plurality of locking holes are evenly distributed along the direction of the first slide and the second slide, and a pin is adapted to be installed in the hole of the plurality of locking holes.

[0020] The bottom of the first slide and the second slide are provided with a moving bed for the testing equipment, and the moving bed for the testing equipment has a hole for fitting a pin in its longitudinal direction.

[0021] With this setup, when a patient needs to raise their upper arm during a hospital equipment examination, the fixation device is placed on the mobile bed of the aforementioned testing equipment, and pins are inserted sequentially into the locking holes and insertion holes to secure the fixation device to the mobile bed of the testing equipment. This saves space and is compatible with the movement of the examination bed.

[0022] Optionally: the above-mentioned movable component has a horizontal plate, and the two ends of the horizontal plate are respectively provided with a first support ear and a second support ear. A crossbar is fixedly connected between the first support ear and the second support ear, and the fixed component is detachably and movably connected to the crossbar.

[0023] This design allows the fixing components to move and adjust on the aforementioned crossbar, making it easier to adapt to the upper limbs of different patients and ensuring that the patient's upper limbs remain in an elevated position.

[0024] Optionally, the above-mentioned fixing component has a first upper limb fixing ball and a second upper limb fixing ball. The outer walls of the first upper limb fixing ball and the second upper limb fixing ball are respectively provided with a first through hole and a second through hole. The first upper limb fixing ball and the second upper limb fixing ball are detachably fixed to the crossbar on the side away from the first through hole and the second through hole.

[0025] With this configuration, the first upper limb fixation ball and the second upper limb fixation ball can easily hold the patient's palm, helping the patient maintain the raised arms position, while the first through hole and the second through hole can facilitate the passage of the patient's palm, thereby allowing the palm to enter the interior of the first upper limb fixation ball and the second upper limb fixation ball.

[0026] Optionally: The first upper limb fixing ball and the second upper limb fixing ball are provided with a first movable sleeve and a first connecting band between them and the crossbar. The first movable sleeve is movably sleeved on the crossbar, and the end of the first connecting band away from the first movable sleeve is fixedly connected to the first upper limb fixing ball or the second upper limb fixing ball.

[0027] The aforementioned movable sleeve has a wing plate in the radial direction, and the wing plate and the aforementioned first connecting strip have coaxial holes, and a pin is adapted to fit in the aforementioned holes.

[0028] With this configuration, the first movable sleeve can be adjusted to move upward along the crossbar axis. The first connecting belt and the wing plate are connected by the pin. By removing the pin, the size of the first upper limb fixing ball and the second upper limb fixing ball can be changed, making it convenient for different people to use.

[0029] Optionally: Both the first upper limb fixation ball and the second upper limb fixation ball have an upper hemisphere and a lower hemisphere, the upper hemisphere and the lower hemisphere are symmetrically connected to each other, the upper hemisphere has an upper connecting block, the lower hemisphere has a lower connecting block, and the upper connecting block and the lower connecting block are bolted to each other.

[0030] This design, with the upper and lower hemispheres, allows operators to quickly disassemble the bolts on the upper and lower connecting blocks in emergency situations where the patient is unable to remove their hand, thereby quickly opening the upper and lower hemispheres and facilitating the removal of the patient's hand.

[0031] Optionally, the inner walls of the first upper limb fixation ball and the second upper limb fixation ball are provided with a memory foam layer.

[0032] With this design, the memory foam layer can improve the comfort of the patient's upper limb inside the first and second upper limb fixation balls, enhance the patient's experience, and avoid discomfort.

[0033] In summary, the renal dynamic imaging upper limb fixation device disclosed in this utility model has the advantages of conveniently assisting patients to actively maintain both arms raised, occupying little space, not affecting the movement of the examination bed, being adaptable to patients of different body types, and preventing numbness of the patient's limbs or displacement of body position. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of an upper limb fixation device for dynamic kidney imaging in an embodiment of this utility model;

[0036] Figure 2 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle;

[0037] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged view of point B in the middle;

[0038] Figure 4 This is a schematic diagram illustrating the use of an upper limb fixation device for dynamic kidney imaging in an embodiment of this utility model.

[0039] Icons: 1-Adjusting component, 2-Moving component, 3-Fixing component, 4-First slide rail, 5-Second slide rail, 6-First slide rail, 7-Second slide rail, 8-First C-shaped slider, 9-Second C-shaped slider, 10-Limiting hole, 11-Guide rod, 12-First fixing block, 13-Second fixing block, 14-Locking hole, 15-Detection equipment moving bed, 16-Horizontal plate, 17-First support ear, 18-Second support ear, 19-Horizontal bar, 20-First upper limb fixing ball, 21-Second upper limb fixing ball, 22-First through hole, 23-Second through hole, 24-First movable sleeve, 25-First connecting belt, 26-Wing plate, 27-Hole, 28-Pin, 29-Upper hemisphere, 30-Lower hemisphere, 31-Upper connecting block, 32-Lower connecting block. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] Example

[0043] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment proposes an upper limb fixation device for renal dynamic imaging, including an adjustment component 1;

[0044] The adjusting component 1 is provided with a movable component 2 in the horizontal direction. The movable component 2 is slidably connected to the adjusting component 1 and slides along the axial direction of the adjusting component 1.

[0045] The movable component 2 is provided with a fixing component 3 for fixing the upper limb in the radial direction. The fixing component 3 is detachably fixedly connected to the movable component 2 in the radial direction.

[0046] In use, the fixation device is placed on the existing medical equipment bed and fixed in place. The patient's upper limb is fixed on the fixation component 3. According to the length of the patient's upper limb, the moving component 2 is pushed to move along the axis of the adjusting component 1. When the moving component 2 moves to the appropriate position and is fixed, it helps the patient maintain the posture of raising both arms, which is convenient for the medical equipment to examine the patient.

[0047] The upper limb fixation device for renal dynamic imaging disclosed in this embodiment is conveniently and detachably fixed to a standard examination bed, reducing the equipment's footprint. At the same time, it can be slidably adjusted, which makes it easy to adjust the raised position of both arms according to the length of the patient's upper limbs, thus expanding the scope of application. As a result, the upper limb fixation device for renal dynamic imaging has the beneficial effects of conveniently assisting patients to actively maintain the raised arms, occupying little space, not affecting the movement of the examination bed, adapting to patients of different body types, and preventing patients' limbs from becoming numb or their body position from shifting.

[0048] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The adjustment component 1 has a first slide 4 and a second slide 5. The two ends of the moving component 2 are slidably connected to the first slide 4 and the second slide 5 respectively. The setting of the first slide 4 and the second slide 5 enables the moving component 2 to move along the groove direction of the first slide 4 and the second slide 5, which makes it convenient to adjust the position of the moving component 2 according to the length of the patient's upper limb, thereby helping the patient to maintain the posture of raising both arms. It can be applied to different groups of people.

[0049] The top of the first slide groove 4 and the second slide groove 5 are provided with a first slide rail 6 and a second slide rail 7. The first slide rail 6 and the second slide rail 7 are parallel to each other and spaced apart. The bottom surfaces of both ends of the moving component 2 are provided with a first C-shaped slider 8 and a second C-shaped slider 9. The first C-shaped slider 8 is slidably clamped on the first slide rail 6, and the second C-shaped slider 9 is slidably clamped on the second slide rail 7. The cooperation between the first C-shaped slider 8 and the second C-shaped slider 9 and the first slide rail 6 and the second slide rail 7 makes the movement of the moving component 2 smoother and also has a guiding function.

[0050] See Figure 1 , Figure 2 , Figure 3 and Figure 4The top surfaces of the first slide rail 6 and the second slide rail 7 are provided with a number of limiting holes 10. The limiting holes are evenly distributed along the axial direction of the first slide rail 6 and the second slide rail 7. When the operator pushes the moving component 2 to a suitable position, the position of the moving component 2 can be restricted by inserting a limiting rod into the limiting holes 10 on both sides of the moving component 2, so that the patient can keep his arms raised.

[0051] The bottom of the first slide 4 and the second slide 5 are both provided with guide rods 11 in the axial direction. The two ends of the guide rods 11 are respectively fixedly connected to the first fixing block 12 and the second fixing block 13. The first fixing block 12 and the second fixing block 13 are both fixedly connected to the bottom of the first slide 4 or the second slide 5. The two ends of the moving component 2 are respectively slidably connected to the guide rods 11 of the first slide 4 and the second slide 5. The guide rods 11 facilitate the guiding function of the moving component 2. At the same time, they are conducive to combining the moving component 2 and the adjusting component 1 into a whole, which is convenient for installation and disassembly during use and avoids the moving component 2 from accidentally sliding out during the movement.

[0052] Several locking holes 14 are provided at the connection between the bottom of the first slide 4 and the wall of the second slide 5. The locking holes 14 are evenly distributed along the direction of the first slide 4 and the second slide 5. The holes of the locking holes 14 are fitted with pins (not shown in the figure). The bottom of the first slide 4 and the second slide 5 is provided with a moving bed 15 for the testing equipment. The moving bed 15 for the testing equipment has insertion holes for the pins in its longitudinal direction (not shown in the figure). When the patient needs to raise his upper arm during the hospital equipment examination, the fixing device is placed on the moving bed 15 for the testing equipment, and the pins are inserted into the locking holes 14 and the insertion holes in sequence to fix the fixing device on the moving bed 15 for the testing equipment. This saves space and is compatible with the movement of the examination bed.

[0053] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The movable component 2 has a horizontal plate 16, and the two ends of the horizontal plate 16 are respectively provided with a first support ear 17 and a second support ear 18. A crossbar 19 is fixedly connected between the first support ear 17 and the second support ear 18. The fixed component 3 is detachably and movably connected to the crossbar 19. This arrangement is conducive to the fixed component 3 moving and adjusting on the crossbar 19, which is convenient to adapt to the upper limbs of different patients and ensures that the patient's upper limbs are kept in an raised position.

[0054] The fixation component 3 has a first upper limb fixation ball 20 and a second upper limb fixation ball 21. The outer walls of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 are respectively provided with a first through hole 22 and a second through hole 23. The side of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 away from the first through hole 22 and the second through hole 23 is detachably fixed to the crossbar 19. The first upper limb fixation ball 20 and the second upper limb fixation ball 21 can easily hold the patient's palm and help the patient maintain the posture of raising both arms. The first through hole 22 and the second through hole 23 can facilitate the passage of the patient's palm, so that the palm can enter the interior of the first upper limb fixation ball 20 and the second upper limb fixation ball 21.

[0055] Both the first upper limb fixation ball 20 and the second upper limb fixation ball 21 are provided with a first movable sleeve 24 and a first connecting strap 25 between them and the crossbar 19. The first movable sleeve 24 is movably fitted onto the crossbar 19, and the end of the first connecting strap 25 away from the first movable sleeve 24 is fixedly connected to the first upper limb fixation ball 20 or the second upper limb fixation ball 21. The movable sleeve has a wing plate 26 in the radial direction, and the wing plate 26 and the first connecting strap 25 have coaxial holes 27. A pin 28 is fitted in the hole 27. The first movable sleeve 24 can be moved and adjusted axially in the crossbar 19. The first connecting strap 25 and the wing plate 26 are connected by the pin 28. By removing the pin 28, the size of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 can be changed, which is convenient for different people to use.

[0056] Both the first upper limb fixation ball 20 and the second upper limb fixation ball 21 have an upper hemisphere 29 and a lower hemisphere 30. The upper hemisphere 29 and the lower hemisphere 30 are symmetrically connected to each other. The upper hemisphere 29 has an upper connecting block 31, and the lower hemisphere 30 has a lower connecting block 32. The upper connecting block 31 and the lower connecting block 32 are bolted together. The arrangement of the upper hemisphere 29 and the lower hemisphere 30 allows the operator to quickly remove the bolts on the upper connecting block 31 and the lower connecting block 32 in an emergency situation where the patient cannot remove their hand, thereby quickly opening the upper hemisphere 29 and the lower hemisphere 30 to facilitate the removal of the patient's hand.

[0057] The inner walls of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 have a memory foam layer (not shown in the figure). The memory foam layer can improve the comfort of the patient's upper limb inside the first upper limb fixation ball 20 and the second upper limb fixation ball 21, improve the patient's experience, and avoid discomfort.

[0058] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the first upper limb fixation ball 20 and the second upper limb fixation ball 21 are configured with different sizes to facilitate the selection of the appropriate size of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 according to the patient's condition.

[0059] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the fixation device can directly utilize the existing examination bed slide rails, reducing the equipment footprint by 100%, improving operational efficiency, reducing installation time to within 30 seconds, facilitating natural micro-adjustment of the patient's posture, and enhancing clinical adaptability.

[0060] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the inner walls of the first upper limb fixation ball 20 and the second upper limb fixation ball 21 are made of memory foam, which can reduce limb pressure and improve patient comfort.

[0061] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The specific steps for using the upper limb fixation device for renal dynamic imaging in this embodiment are as follows:

[0062] First, medical personnel place the fixation device on the mobile bed 15 of the testing equipment and fix it in place by inserting pins into the locking holes 14 and insertion holes. Second, the patient lies on the mobile bed 15, and the patient's hands are passed through the first through hole 22 and the second through hole 23 respectively, and secured inside the first upper limb fixation ball 20 and the second upper limb fixation ball 21. Then, based on the length of the patient's arm, the transverse plate 16 of the moving assembly 2 is pushed, causing the transverse plate 16 to move along the grooves of the first slide groove 4 and the second slide groove 5. When the patient's upper limbs are straightened, blocking rods are inserted into the limiting holes on both sides of the transverse plate 16 to prevent the moving component 2 from moving and help the patient maintain the raised arms position. Finally, after testing the patient's test site, the patient's hands are removed from the first through hole 22 and the second through hole 23 of the first upper limb fixing ball 20 and the second upper limb fixing ball 21. If they cannot be removed, the upper hemisphere 29 and the lower hemisphere 30 can be opened by disassembling the bolts between the upper connecting block 31 and the lower connecting block 32, thus facilitating the quick removal of the patient's palms.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An upper limb fixation device for dynamic renal imaging, characterized in that: Includes adjustment components (1); The adjusting component (1) is provided with a moving component (2) in the lateral direction. The moving component (2) is slidably connected to the adjusting component (1) and slides along the axial direction of the adjusting component (1). The movable component (2) is provided with a fixing component (3) for fixing the upper limb in the radial direction, and the fixing component (3) is detachably fixedly connected to the movable component (2) in the radial direction.

2. The upper limb fixation device for renal dynamic imaging according to claim 1, characterized in that: The adjustment component (1) has a first slide groove (4) and a second slide groove (5), and the two ends of the moving component (2) are slidably connected to the first slide groove (4) and the second slide groove (5) respectively.

3. The upper limb fixation device for renal dynamic imaging according to claim 2, characterized in that: The top of the first slide groove (4) and the second slide groove (5) are provided with a first slide rail (6) and a second slide rail (7). The first slide rail (6) and the second slide rail (7) are parallel to each other and spaced apart. The bottom surfaces of both ends of the moving component (2) are provided with a first C-shaped slider (8) and a second C-shaped slider (9). The first C-shaped slider (8) is slidably clamped on the first slide rail (6), and the second C-shaped slider (9) is slidably clamped on the second slide rail (7).

4. The upper limb fixation device for renal dynamic imaging according to claim 3, characterized in that: The top surfaces of the first slide rail (6) and the second slide rail (7) are provided with a plurality of limiting holes (10), and the plurality of limiting holes (10) are evenly distributed along the axial direction of the first slide rail (6) and the second slide rail (7).

5. The upper limb fixation device for renal dynamic imaging according to claim 2, characterized in that: The first slide (4) and the second slide (5) each have a guide rod (11) on the bottom of the slide. The two ends of the guide rod (11) are respectively fixedly connected to a first fixing block (12) and a second fixing block (13). The first fixing block (12) and the second fixing block (13) are both fixedly connected to the bottom of the first slide (4) or the second slide (5). The two ends of the moving component (2) are respectively slidably connected to the guide rod (11) of the first slide (4) and the second slide (5).

6. The upper limb fixation device for renal dynamic imaging according to claim 2, characterized in that: A plurality of locking holes (14) are provided at the connection between the bottom of the first slide (4) and the wall of the second slide (5). The plurality of locking holes (14) are evenly distributed along the groove direction of the first slide (4) and the second slide (5). A pin is fitted inside the hole of the plurality of locking holes (14). The bottom of the first slide (4) and the second slide (5) is provided with a detection equipment moving bed (15), and the detection equipment moving bed (15) has a hole for fitting pins in the longitudinal direction.

7. The upper limb fixation device for renal dynamic imaging according to claim 1, characterized in that: The moving component (2) has a horizontal plate (16), and the two ends of the horizontal plate (16) are respectively provided with a first support ear (17) and a second support ear (18). A crossbar (19) is fixedly connected between the first support ear (17) and the second support ear (18). The fixing component (3) is detachably and movably connected to the crossbar (19).

8. The upper limb fixation device for renal dynamic imaging according to claim 7, characterized in that: The fixing component (3) has a first upper limb fixing ball (20) and a second upper limb fixing ball (21). The outer walls of the first upper limb fixing ball (20) and the second upper limb fixing ball (21) are respectively provided with a first through hole (22) and a second through hole (23). The side of the first upper limb fixing ball (20) and the second upper limb fixing ball (21) away from the first through hole (22) and the second through hole (23) is detachably fixed to the crossbar (19).

9. The upper limb fixation device for renal dynamic imaging according to claim 8, characterized in that: The first upper limb fixing ball (20) and the second upper limb fixing ball (21) are each provided with a first movable sleeve (24) and a first connecting strap (25) between them and the crossbar (19). The first movable sleeve (24) is movably sleeved on the crossbar (19), and the end of the first connecting strap (25) away from the first movable sleeve (24) is fixedly connected to the first upper limb fixing ball (20) or the second upper limb fixing ball (21). The movable sleeve has a wing plate (26) in the radial direction. The wing plate (26) and the first connecting strip (25) have coaxial holes (27). A pin (28) is adapted to fit inside the hole (27).

10. The upper limb fixation device for renal dynamic imaging according to claim 8, characterized in that: Both the first upper limb fixation ball (20) and the second upper limb fixation ball (21) have an upper hemisphere (29) and a lower hemisphere (30). The upper hemisphere (29) and the lower hemisphere (30) are symmetrically connected to each other. The upper hemisphere (29) has an upper connecting block (31), and the lower hemisphere (30) has a lower connecting block (32). The upper connecting block (31) and the lower connecting block (32) are bolted together.

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