Bed activity device for patients with heart disease based on action inconvenience

Abstract

The present application relates to the technical field of rehabilitation equipment, and particularly relates to a heart internal medicine department patient bed activity device based on action inconvenience. The present application provides a heart internal medicine department patient bed activity device based on action inconvenience, which can realize the common movement of upper and lower limbs of a patient. The heart internal medicine department patient bed activity device based on action inconvenience comprises a sickbed, the sickbed is symmetrically and fixedly connected with connecting columns, the connecting columns are rotationally connected with placing plates, the side of the sickbed away from the connecting columns is symmetrically and slidably connected with moving rods, the top of the moving rods is fixedly connected with a supporting plate, the side of the sickbed away from the supporting plate is provided with a top driving assembly, and the side of the sickbed away from the connecting columns is provided with a lifting assembly. The placing plates drive the arms of the patient to repeatedly swing up and down, the supporting plate drives the legs of the patient to repeatedly bend and straighten, the arms and the legs of the patient are assisted to move, the upper limbs and the lower limbs are exercised together, and the problem that only a part of the body can be exercised to affect rehabilitation is solved.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation equipment technology, and in particular to a bedside mobility device for cardiology patients with limited mobility. Background Technology

[0002] Cardiology patients are often weak after treatment and can only rest in bed, avoiding strenuous exercise. However, prolonged bed rest after surgery, without proper movement of the limbs, can lead to poor blood circulation, muscle stiffness, and even loss of mobility. Therefore, postoperative rehabilitation care is essential. In reality, manual assistance is often used for exercise, but this is time-consuming and laborious. Assistive rehabilitation devices are needed to accelerate recovery. However, most existing devices only target the upper or lower limbs, leading to discrepancies in recovery speed between the two and impacting subsequent rehabilitation treatment.

[0003] Therefore, a bedside activity device for cardiology patients with limited mobility is provided, which enables patients to move their upper and lower limbs together. Summary of the Invention

[0004] To overcome the drawback of exercising only the upper or lower limbs, which can lead to a difference in recovery speed between the upper and lower limbs and affect subsequent rehabilitation treatment, the technical problem is to provide a bed-based activity device for cardiology patients with limited mobility that can assist patients in moving both their upper and lower limbs together.

[0005] The technical solution is as follows: A bed-based mobility device for cardiology patients with limited mobility includes a bed, with connecting columns symmetrically fixed to the bed, a placement plate rotatably connected to the connecting columns, and movable rods symmetrically slidably connected to the side of the bed away from the connecting columns. A support plate is fixed between the tops of the movable rods, a jacking component for jacking the placement plate to rotate is provided on the side of the bed away from the support plate, and a lifting component for driving the support plate to rise and fall is provided on the side of the bed away from the connecting columns.

[0006] Optionally, the actuating assembly includes a dual-axis motor, which is fixed to the bottom of the bed on the side near the placement plate. The output shafts on both sides of the dual-axis motor are fixed to the side near the placement plate, and a torsion spring is fixed between the connecting column and the placement plate that rotates on the connecting column.

[0007] Optionally, the lifting assembly includes a first guide rail, which is symmetrically fixed to the bottom of the bed near the moving rod. A guide rod is slidably connected to the first guide rail. A pull rod is fixed to one end of the guide rod near the top rod. A first sliding groove is provided on the top rod, and the pull rod slides in the first sliding groove. A first rack is fixed to the bottom of the guide rod near the first guide rail. A second rack is fixed to the moving rod. A fixing frame is symmetrically fixed to the bottom of the bed near the first guide rail. A first gear is rotatably connected to the fixing frame. The first gear meshes with the first rack and the second rack.

[0008] Optionally, it also includes a forearm exercise component, which is disposed on the placement plate and is used to exercise the patient's forearm. The forearm exercise component includes an arc-shaped rack, which is symmetrically fixed to the bottom of the bed on one side near the placement plate. A rotating rod is rotatably connected to the side of the placement plate near the arc-shaped rack. A second gear is fixed to the side of the rotating rod near the arc-shaped rack. The second gear meshes with the arc-shaped rack. A support plate is fixed to the rotating rod, and an elastic rope is fixed to the support plate.

[0009] Optionally, it also includes a thigh massage component, which is installed on the top of the hospital bed and is used to massage the patient's thigh. The thigh massage component includes a bracket, which is symmetrically fixed to the top of the hospital bed. The bracket has a first guide groove, a second guide rail is slidably connected in the first guide groove, a slider is slidably connected in the second guide rail, a first spring is symmetrically fixed between the slider and the second guide rail, and a massage stick is rotatably connected between the sliders. A pulling component for pulling the massage stick to massage the patient's thigh is provided on the top of the placement plate near the bracket.

[0010] Optionally, the pulling assembly includes connecting blocks, which are fixed to the top of the placement plate near the support, and the connecting blocks are rotatably connected to the adjacent second guide rail by a connecting rod.

[0011] Optionally, the device also includes a back massage component, which is located on the side of the bed near the dual-axis motor. The back massage component is used to massage the patient's back. The back massage component includes a connecting plate. The side of the bed near the dual-axis motor has symmetrically opened second slide grooves. The connecting plates are slidably connected in the second slide grooves. The connecting plates have second guide grooves. A massage plate is fixed between the tops of the connecting plates. The side of the bed near the dual-axis motor is provided with a pushing component for driving the massage plate to move left and right to massage the patient's back.

[0012] Optionally, the pushing component includes fixed rods, which are symmetrically fixed to the bottom of the bed on the side near the dual-axis motor. A rotating shaft is rotatably connected between the fixed rods. A pulley assembly is connected between the output shafts on both sides of the dual-axis motor and the rotating shaft. A swing arm is symmetrically fixed to the end of the rotating shaft. A second connecting rod is symmetrically rotatably connected to the side of the bed near the connecting plate. A first connecting rod is rotatably connected between the second connecting rod and the adjacent swing arm. The second connecting rod slides in the second guide groove.

[0013] Optionally, it also includes an extension component, which is disposed on the pallet and is used to increase the support area of ​​the pallet. The extension component includes positioning posts, and the pallet has symmetrically opened third slide grooves. The positioning posts are slidably connected in the third slide grooves, and an extension plate is fixed between the positioning posts. The pallet is symmetrically fixed with limiting components for limiting the positioning posts.

[0014] Optionally, the limiting component includes a fixing block, which is symmetrically fixed to the support plate. The fixing block is slidably connected to a stop block, and a second spring is fixed between the fixing block and the stop block that slides on the fixing block.

[0015] The advantages of this invention are: the placement plate drives the patient's arm to swing repeatedly up and down, assisting the patient in arm movement; the support plate drives the patient's leg to bend and straighten repeatedly, assisting the patient in leg movement, thus achieving joint exercise of the upper and lower limbs and solving the problem of only exercising one part, which affects rehabilitation; the support plate drives the patient's forearm to swing, thereby exercising the patient's arm and promoting blood flow in the arm; under the action of the first spring, the massage stick is kept close to the patient's thigh. When the patient's leg bends and straightens, the massage stick moves repeatedly left and right to massage and soothe the patient's leg muscles, thereby promoting blood flow in the leg; the massage plate moves repeatedly left and right to massage the patient's back, promoting blood flow in the back; the extension plate widens the support plate, allowing patients of different heights to place their lower legs on the support plate, increasing the applicability of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the placement plate, tray, jacking assembly, and lifting assembly of the present invention.

[0018] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention.

[0019] Figure 4 This is a first-view three-dimensional structural diagram of the forearm exercise component of the present invention.

[0020] Figure 5 This is a second-view three-dimensional structural diagram of the forearm exercise component of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the thigh massage component of the present invention.

[0022] Figure 7 This is a cross-sectional perspective view of the thigh massage component of the present invention.

[0023] Figure 8This is a three-dimensional structural diagram of the back massage component of the present invention.

[0024] Figure 9 This is a schematic diagram of a second three-dimensional structure of the back massage component of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the extension component of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the extension component of the present invention.

[0027] The markings in the attached diagram are: 1_Hospital bed, 2_Connecting column, 3_Placement plate, 4_Moving rod, 5_Support plate, 6_Dual-axis motor, 7_Push rod, 8_Torsion spring, 9_First guide rail, 10_Guide rod, 11_Tie rod, 12_First slide rail, 13_First rack, 14_Second rack, 15_Fixed frame, 16_First gear, 17_Arc rack, 18_Rotating rod, 19_Second gear, 20_Support plate, 21_Elastic rope, 22_Bracket, 23_First guide groove, 2 4_Second guide rail, 25_slider, 26_first spring, 27_massage stick, 28_connecting block, 29_connecting rod, 30_second slide groove, 31_connecting plate, 32_second guide groove, 33_massage plate, 34_fixed rod, 35_rotating shaft, 36_pulley assembly, 37_swing rod, 38_first connecting rod, 39_second connecting rod, 40_third slide groove, 41_positioning post, 42_extension plate, 43_fixed block, 44_stop block, 45_second spring. Detailed Implementation

[0028] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0029] Example 1

[0030] A bed mobility device for cardiology patients with limited mobility, referring to Figures 1-3 The device includes a hospital bed 1, connecting columns 2, and a placement plate 3. Connecting columns 2 are fixedly connected to the left side of both the front and rear sides of the hospital bed 1. Placement plates 3 are rotatably connected to both connecting columns 2. Moving rods 4 are slidably connected to the front and rear sides of the right side of the hospital bed 1. A support plate 5 is fixedly connected between the upper ends of the two moving rods 4. A jacking component for jacking the placement plate 3 to rotate is provided on the left side of the hospital bed 1, and a lifting component for driving the support plate 5 to rise and fall is provided on the right side of the hospital bed 1.

[0031] The jacking assembly includes a dual-axis motor 6, which is fixed to the left side of the bottom of the bed 1. A jacking rod 7 is fixed to the output shafts on both sides of the dual-axis motor 6. The jacking rod 7 is located on the lower side of the placement plate 3. A torsion spring 8 is fixed between the two connecting columns 2 and the placement plate 3, which rotates on the connecting columns 2.

[0032] The lifting assembly includes a first guide rail 9, which is symmetrically fixed to the bottom right side of the bed 1. Guide rods 10 are slidably connected to both first guide rails 9. Pull rods 11 are fixed to the left side of both guide rods 10. A first sliding groove 12 is provided on the top rod 7, and the pull rod 11 slides in the first sliding groove 12. A first rack 13 is fixed to the bottom right side of the guide rod 10. A second rack 14 is fixed to the left side of both moving rods 4. Fixed frames 15 are symmetrically fixed to the bottom right side of the bed 1. A first gear 16 is rotatably connected to the lower part of both fixed frames 15. The first gear 16 meshes with the first rack 13 and the second rack 14.

[0033] In use, the patient first lies flat on the bed 1. Then, medical staff place the patient's arm on the placement plate 3 and the patient's lower leg on the support plate 5. The dual-axis motor 6 is then started. The output shaft of the dual-axis motor 6 drives the push rod 7 to swing up and down repeatedly. Under the pushing action of the push rod 7 and the torsion spring 8, the placement plate 3 swings up and down repeatedly. The placement plate 3 drives the patient's arm to swing up and down repeatedly, thus assisting the patient in moving their arm. At the same time, the repeated up and down swing of the push rod 7 drives the guide rod 10 to move left and right repeatedly through the pull rod 11. The guide rod 10 drives the first rack 13 to move left and right repeatedly. The first rack 13 drives the second rack 14 to move up and down repeatedly through the first gear 16. The second rack 14 drives the moving rod 4 to move up and down repeatedly, which in turn drives the support plate 5 to move up and down repeatedly. The support plate 5 causes the patient's leg to bend and straighten repeatedly, thus assisting the patient in moving their leg. In this way, both the upper and lower limbs can be exercised together, solving the problem of only exercising one part and affecting rehabilitation. After the exercise is completed, the dual-axis motor 6 can be turned off.

[0034] Example 2

[0035] Based on Example 1, referring to Figure 1 , Figure 4 and Figure 5 It also includes a forearm exercise component, which is set on the placement plate 3. The forearm exercise component is used to exercise the patient's forearm. The forearm exercise component includes an arc-shaped rack 17, which is symmetrically fixed to the left side of the bottom of the bed 1. Rotating rods 18 are rotatably connected to the middle of the two placement plates 3. Second gears 19 are fixed to the outer side of the two rotating rods 18. The second gears 19 mesh with the arc-shaped rack 17. Support plates 20 are fixed to the two rotating rods 18. Elastic ropes 21 are fixed to the top right side of the two support plates 20.

[0036] To promote blood circulation in the patient's arm and further enhance the arm's function, the patient's forearm is placed on the support plate 20 and secured by the elastic rope 21. When the placement plate 3 swings up and down repeatedly, the placement plate 3 drives the rotating rod 18, the second gear 19, the support plate 20, and the elastic rope 21 to swing up and down repeatedly. The second gear 19 meshes with the arc-shaped rack 17, and the arc-shaped rack 17 drives the rotating rod 18 to rotate forward and backward repeatedly through the second gear 19. The rotating rod 18 drives the support plate 20 to swing repeatedly, and the support plate 20 drives the patient's forearm to swing, thereby exercising the patient's arm and promoting blood circulation in the arm.

[0037] Reference Figure 1 , Figure 6 and Figure 7 It also includes a thigh massage component, which is set on the top of the hospital bed 1. The thigh massage component is used to massage the patient's thigh. The thigh massage component includes a bracket 22, which is symmetrically fixed to the top of the hospital bed 1. The upper part of each of the two brackets 22 is provided with a first guide groove 23. A second guide rail 24 is slidably connected in each of the two first guide grooves 23. A slider 25 is slidably connected in each of the two second guide rails 24. A first spring 26 is fixed between each slider 25 and the second guide rail 24. A massage stick 27 is rotatably connected between the two sliders 25. A pulling component for pulling the massage stick 27 to massage the patient's thigh is provided on the top right side of each of the two placement plates 3.

[0038] The pulling assembly includes connecting blocks 28, two connecting blocks 28 are respectively fixed to the top right side of the two placement plates 3, and each connecting block 28 is rotatably connected to the adjacent second guide rail 24 by a connecting rod 29.

[0039] To promote blood circulation in the patient's legs, the legs need to be massaged to relax the leg muscles. The massage stick 27 is in contact with the patient's thigh. When the patient's leg bends, the thigh pushes the massage stick 27 upward, causing the massage stick 27 to move the slider 25 upward. The first spring 26 is stretched. When the patient's leg straightens, the first spring 26 returns to its original position, causing the slider 25 and the massage stick 27 to move downward and return to their original position. In this way, the massage stick 27 is kept in close contact with the patient's thigh. When the placement plate 3 swings up and down repeatedly, the placement plate 3 drives the connecting block 28 to swing up and down repeatedly. The connecting block 28 drives the second guide rail 24 to move horizontally left and right along the first guide groove 23 repeatedly via the connecting rod 29. The second guide rail 24 drives the massage stick 27 to move left and right repeatedly via the slider 25. In this way, when the patient's leg bends and straightens, the massage stick 27 moves left and right repeatedly to massage and relax the patient's leg muscles, thereby promoting blood circulation in the patient's legs.

[0040] Reference Figure 1 , Figure 8 and Figure 9It also includes a back massage component, which is located on the left side of the bed 1. The back massage component is used to massage the patient's back. The back massage component includes a connecting plate 31. The left side of the bed 1 has symmetrically opened second slide grooves 30. The two connecting plates 31 are slidably connected in the two second slide grooves 30 respectively. The two connecting plates 31 each have a second guide groove 32. A massage plate 33 is fixed between the tops of the two connecting plates 31. The left side of the bed 1 is provided with a pushing component for moving the massage plate 33 left and right to massage the patient's back.

[0041] The pushing component includes a fixed rod 34, which is symmetrically fixed to the left side of the bottom of the bed 1. A rotating shaft 35 is rotatably connected between the lower parts of the two fixed rods 34. The output shafts on both sides of the dual-axis motor 6 are connected to the rotating shaft 35 by a pulley assembly 36, which consists of a pulley and a belt. A swing arm 37 is fixed to both ends of the rotating shaft 35. A second connecting rod 39 is symmetrically rotatably connected to both the front and rear sides of the left side of the bed 1. A first connecting rod 38 is rotatably connected to each of the second connecting rods 39 and the adjacent swing arm 37. The second connecting rod 39 slides in the second guide groove 32.

[0042] Because patients lie in bed for long periods of time, their backs do not get proper exercise, which can lead to poor blood circulation and affect subsequent rehabilitation treatment. Therefore, it is necessary to massage the patient's back to promote blood circulation. When the output shafts on both sides of the dual-axis motor 6 rotate in both directions, the pulley assembly 36 drives the rotating shaft 35 to rotate in both directions. The rotating shaft 35 drives the swing arm 37 to rotate in both directions. The swing arm 37 drives the second connecting rod 39 to swing left and right through the first connecting rod 38. The second connecting rod 39 drives the massage plate 33 to move left and right through the connecting plate 31, thereby massaging the patient's back and promoting blood circulation.

[0043] Reference Figure 1 , Figure 10 and Figure 11 It also includes an extension component, which is set on the pallet 5. The extension component is used to increase the support area of ​​the pallet 5. The extension component includes a positioning post 41. The pallet 5 has a third slide groove 40 on both the front and rear sides. The positioning post 41 is slidably connected in the two third slide grooves 40 respectively. An extension plate 42 is fixed between the two positioning posts 41. The pallet 5 is symmetrically fixed with limiting components for limiting the positioning post 41.

[0044] The limiting component includes a fixing block 43, which is symmetrically fixed to the front and rear sides of the support plate 5. Each of the four fixing blocks 43 is slidably connected to a stop block 44, and a second spring 45 is fixed between each fixing block 43 and the stop block 44 that slides on the fixing block 43.

[0045] To allow patients of different heights to place their lower legs on the support plate 5, the width of the support plate 5 needs to be adjusted to increase the applicability of the device. When the width of the support plate 5 needs to be increased, manually press down the stop block 44. The second spring 45 is compressed, so that the stop block 44 no longer blocks the positioning post 41. Then, manually move the extension plate 42 to the left. The extension plate 42 drives the positioning post 41 to move horizontally to the left within the third slide groove 40. When the positioning post 41 is located to the left of the stop block 44 on the left, release the stop block 44. Then, under the action of the second spring 45, the stop block 44 moves upward to reset. Thus, by widening the support plate 5 through the extension plate 42, patients of different heights can place their lower legs on the support plate 5, increasing the applicability of the device.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bedside mobility device for cardiology patients with limited mobility, characterized in that, The device includes a hospital bed (1), a connecting column (2) symmetrically fixed to the hospital bed (1), a placement plate (3) for placing an arm rotatably connected to the connecting column (2), a moving rod (4) symmetrically slidably connected to the side of the hospital bed (1) away from the connecting column (2), a support plate (5) for placing a lower leg fixed between the tops of the moving rod (4), a jacking component for jacking the placement plate (3) to rotate on the side of the hospital bed (1) away from the support plate (5), and a lifting component for driving the support plate (5) to rise and fall on the side of the hospital bed (1) away from the connecting column (2). The jacking assembly includes a dual-axis motor (6), which is fixed to the bottom of the bed (1) on the side near the placement plate (3). The output shafts on both sides of the dual-axis motor (6) are fixed to the side near the placement plate (3) with a jacking rod (7). The jacking rod (7) is located on the lower side of the placement plate (3). A torsion spring (8) is fixed between the connecting column (2) and the placement plate (3) that rotates on the connecting column (2). The lifting assembly includes a first guide rail (9), which is symmetrically fixed to the bottom of the bed (1) near the moving rod (4). The first guide rail (9) is slidably connected to a guide rod (10). A pull rod (11) is fixed to one end of the guide rod (10) near the top rod (7). A first groove (12) is provided on the top rod (7). The pull rod (11) slides in the first groove (12). A first rack (13) is fixed to the bottom of the guide rod (10) near the first guide rail (9). A second rack (14) is fixed to the moving rod (4). A fixed frame (15) is symmetrically fixed to the bottom of the bed (1) near the first guide rail (9). A first gear (16) is rotatably connected to the fixed frame (15). The first gear (16) meshes with the first rack (13) and the second rack (14). It also includes a forearm exercise component, which is set on the placement plate (3). The forearm exercise component is used to exercise the patient's forearm. The forearm exercise component includes an arc-shaped rack (17), which is symmetrically fixed to the bottom of the bed (1) on one side near the placement plate (3). A rotating rod (18) is rotatably connected to the middle of the placement plate (3) on the side near the arc-shaped rack (17). A second gear (19) is fixed to the outside of the rotating rod (18). The second gear (19) meshes with the arc-shaped rack (17). A support plate (20) is fixed to the rotating rod (18). The support plate (20) is used to place the patient's forearm. An elastic rope (21) is fixed to the top right side of the support plate (20). The placement plate (3) drives the rotating rod (18), the second gear (19), the support plate (20) and the elastic rope (21) to swing up and down repeatedly. The second gear (19) meshes with the arc rack (17). The arc rack (17) drives the rotating rod (18) to rotate forward and backward repeatedly through the second gear (19). The rotating rod (18) drives the support plate (20) to swing repeatedly. The support plate (20) drives the patient's forearm to swing. It also includes a thigh massage component, which is set on the top of the hospital bed (1). The thigh massage component is used to massage the patient's thigh. The thigh massage component includes two supports (22). The supports (22) are symmetrically fixed to the top of the hospital bed (1). The two supports (22) are provided with a first guide groove (23). A second guide rail (24) is slidably connected in the first guide groove (23). A slider (25) is slidably connected in the second guide rail (24). A first spring (26) is fixed between the slider (25) and the second guide rail (24). A massage stick (27) is rotatably connected between the two sliders (25). A pulling component for pulling the massage stick (27) to massage the patient's thigh is provided on the side of the top of the placement plate (3) near the support (22). The pulling assembly includes a connecting block (28), which is fixed to the top of the placement plate (3) on the side near the bracket (22). A connecting rod (29) is rotatably connected between the connecting block (28) and the adjacent second guide rail (24). The massage stick (27) contacts the patient's thigh. When the patient's leg is bent, the patient's thigh will push the massage stick (27) upward. The massage stick (27) is always in close contact with the patient's thigh. When the placement plate (3) swings up and down repeatedly, the placement plate (3) drives the connecting block (28) to swing up and down repeatedly. The connecting block (28) drives the second guide rail (24) to move horizontally left and right along the first guide groove (23) through the connecting rod (29). The second guide rail (24) drives the massage stick (27) to move left and right repeatedly through the slider (25).

2. The bedside mobility device for cardiology patients with limited mobility according to claim 1, characterized in that, It also includes a back massage component, which is set on the side of the hospital bed (1) near the dual-axis motor (6). The back massage component is used to massage the patient's back. The back massage component includes a connecting plate (31). The side of the hospital bed (1) near the dual-axis motor (6) is symmetrically provided with a second slide groove (30). The connecting plate (31) is slidably connected in the second slide groove (30). The connecting plate (31) is provided with a second guide groove (32). The top of the connecting plate (31) is fixedly connected with a massage plate (33). The side of the hospital bed (1) near the dual-axis motor (6) is provided with a pushing component for driving the massage plate (33) to move left and right to massage the patient's back.

3. The bedside mobility device for cardiology patients with limited mobility according to claim 2, characterized in that, The pushing component includes a fixed rod (34), which is symmetrically fixed to the bottom of the bed (1) on one side near the dual-axis motor (6). A rotating shaft (35) is rotatably connected between the fixed rods (34). A pulley assembly (36) is connected between the output shafts on both sides of the dual-axis motor (6) and the rotating shaft (35). A swing rod (37) is symmetrically fixed to the end of the rotating shaft (35). A second connecting rod (39) is symmetrically rotatably connected to the side of the bed (1) near the connecting plate (31). A first connecting rod (38) is rotatably connected between the second connecting rod (39) and the adjacent swing rod (37). The second connecting rod (39) slides in the second guide groove (32).

4. The bedside mobility device for cardiology patients with limited mobility according to claim 3, characterized in that, It also includes an extension component, which is set on the tray (5). The extension component is used to increase the support area of ​​the tray (5). The extension component includes a positioning post (41). The tray (5) is symmetrically provided with a third slide groove (40). The positioning posts (41) are slidably connected in the third slide groove (40). An extension plate (42) is fixed between the positioning posts (41). The tray (5) is symmetrically fixed with a limiting component for limiting the positioning posts (41).

5. A bedside mobility device for cardiology patients with limited mobility according to claim 4, characterized in that, The limiting component includes a fixed block (43), which is symmetrically fixed to the support plate (5). The fixed block (43) is slidably connected to a stop block (44), and a second spring (45) is fixed between the fixed block (43) and the stop block (44) that slides on the fixed block (43).

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