Prone position turning-over pillow

Abstract

The utility model discloses a prone position turn-over pillow which comprises a bottom support, a transmission assembly, a chest supporting pad, an abdomen supporting pad assembly, a leg supporting pad, an air bag, an air cylinder, an inflation assembly and a headrest, the transmission assembly is arranged in the bottom support, the chest supporting pad is connected to one end of the bottom support, the abdomen supporting pad is located on one side of the chest supporting pad and connected to the bottom support, and the leg supporting pad is connected to the air bag. The chest supporting pad is connected to one end of the bottom support, the leg supporting pad is connected to the other end of the bottom support, the leg supporting pad and the chest supporting pad are connected with the transmission assembly, the multiple sets of air bags are connected to the chest supporting pad, the abdomen supporting pad and the leg supporting pad respectively, and the two sets of air cylinders are arranged in the abdomen supporting pad. Inflation assemblies are arranged in the chest supporting pad, the belly supporting pad and the leg supporting pad and connected with the air bags, the headrest is inserted into the chest supporting pad, the forehead of a patient can be supported when the patient is in a prone position, and therefore after the forehead is lifted, the space reserved by the neck can prevent the incision of the patient with the tracheotomy from being pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a prone position turning pillow. Background Art

[0002] Prone ventilation means "lying prone" to treat diseases. It uses a turning bed, a turning device or manual turning to allow the patient to breathe or receive mechanical ventilation in a prone position. It can change the patient's diaphragm movement pattern and re-expand local lung tissue. It can also improve the patient's chest and abdominal movement, increase functional residual capacity, improve ventilation-to-perfusion ratio and intrapulmonary shunt, thereby increasing blood oxygen partial pressure and improving oxygenation index. Prone ventilation treatment usually needs to last more than 10 hours to achieve the best effect. Prone ventilation for a long time will squeeze the patient's bilateral breasts, genitals and other parts, causing pressure injuries and causing discomfort to the patient. In addition, for patients with severe ARDS who need long-term indwelling urinary catheters, the urinary catheters can easily cause device-related pressure injuries to the patient when in the prone position.

[0003] Chinese patent publication number CN 215875328 U discloses a similar medical patient turning device in prone position, comprising a bed sheet main body, a head support mechanism fixedly mounted on the upper end surface of the bed sheet main body, the head support mechanism comprising a C-shaped head pillow, a head air cushion and a first air inlet pipe, a C-shaped head pillow fixedly mounted on one end of the first air inlet pipe, a head air cushion mounted on the upper end surface of the C-shaped head pillow, a turning blanket mounted on one side of the C-shaped head pillow located above the bed sheet main body, anti-slip sleeves mounted on the inner sides of both ends of the turning blanket, soft rubber columns mounted on the inner side of the anti-slip sleeves, a segmented buffer mechanism mounted on the upper end surface of the turning blanket, the segmented buffer mechanism comprising an airbag main body, an elastic band and a second air inlet pipe, a second air inlet pipe mounted on the inner side of the elastic band, and six airbag main bodies fixedly mounted on the lower end surface of the elastic band.

[0004] However, the above device cannot be adjusted in length according to the patient's height during use, and the electrode pads on the patient's chest need to be removed when turning the patient over, and then attached to the back when the patient is in a prone position. During this process, the patient is separated from ECG monitoring, and the patient's physical condition cannot be monitored in real time. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art that the length cannot be adjusted accordingly according to the patient's height during use, and that the electrode sheets on the patient's chest need to be removed when the patient is turned over, and then attached to the back when the patient is in the prone position. During this process, the patient is separated from the ECG monitoring and the patient's physical condition cannot be monitored in real time.

[0006] A prone turning pillow is proposed, comprising a base, a transmission assembly, a chest support pad, an abdominal support pad assembly, a leg support pad, an airbag, a cylinder, an inflatable assembly and a headrest, wherein the transmission assembly is arranged inside the base and at the top of the base, the chest support pad is located at one end of the base and arranged above the base, and the chest support pad is connected to the transmission assembly, the abdominal support pad is located at one side of the chest support pad and connected to the base, the leg support pad is located at the other end of the base and arranged above the base, and the leg support pad is connected to the transmission assembly, a plurality of airbags are provided and are respectively connected above the chest support pad, the abdominal support pad and the leg support pad, two groups of cylinders are provided and are both arranged inside the abdominal support pad, the chest support pad, the abdominal support pad and the leg support pad are all provided with an inflatable assembly inside, and the inflatable assembly is connected to the airbag, and the headrest is located at one end of the base and plugged into the chest support pad.

[0007] In the technical solution of the utility model, before turning the patient over, the chest support pad and the leg support pad can be moved to both sides according to the patient's height through the electric screw and the slider in the transmission assembly in the length direction of the base, and then the first abdominal support pad and the second abdominal support pad can be pushed to both sides in the length direction of the base through the cylinder to increase the overall length of the utility model, thereby ensuring that the chest support pad, the abdominal support pad assembly and the leg support pad can fully support the patient's whole body, and after the chest support pad, the abdominal support pad assembly and the leg support pad are pushed to both sides in the length direction of the base, there is a gap between adjacent support pads, and the wires of the electrode sheets on the patient's body can be placed in the gaps between adjacent support pads to avoid the problem that the wires of the electrode sheets are entangled with each other when the patient turns over, causing the need to remove them, so as to solve the problem mentioned in the technical background that the length cannot be adjusted accordingly according to the patient's height during use, and the electrode sheets on the patient's chest need to be removed when the patient is turned over, and then attached to the back when the patient completes the prone position. During this process, the patient is separated from the ECG monitoring and the patient's physical condition cannot be monitored in real time.

[0008] Preferably, the chest support pad, abdomen support pad assembly and leg support pad are all arc-shaped support pads. After the patient completes turning over, the patient's body will fall into the arc-shaped grooves of the chest support pad, abdomen support pad assembly and leg support pad by its own gravity, thereby avoiding the problem of the patient himself slipping off the support pad due to uneven force.

[0009] In the preferred embodiment of the technical solution of the utility model, the abdominal support pad group includes a first abdominal support pad, a second abdominal support pad and a third abdominal support pad, the second abdominal support pad is laterally connected above the base, the first abdominal support pad and the third abdominal support pad are respectively located at two ends of the second abdominal support pad, and the first abdominal support pad and the third abdominal support pad are both slidably arranged on the base, and there are two groups of cylinders and both are arranged inside the second abdominal support pad.

[0010] Preferably, the two groups of air cylinders are located at two sides of the second abdominal support pad, the output ends of the two groups of air cylinders are in opposite directions, and the output ends of the two groups of air cylinders are respectively connected to the first abdominal support pad and the third abdominal support pad. A drainage tube will be inserted into the abdomen of a critically ill patient. Therefore, after the first abdominal support pad and the third abdominal support pad are pushed to both sides by the air cylinders, the drainage tube of the patient's abdomen can be placed in the gap between the first abdominal support pad and the third abdomen and the second abdominal support pad, thereby avoiding the drainage tube being sealed due to squeezing of the patient.

[0011] The preferred technical solution of the utility model is that the inflation component includes an air pump, a control circuit board, a catheter, a tee, a hose, an electric valve and an air guide tube. The air pump is arranged inside the chest support pad and connected to the chest support pad, the control circuit board is located above the air pump and connected to the air pump, and the control circuit board is electrically connected to the air pump and the electric valve. One end of the catheter is plugged into the air pump, and the other end of the catheter is plugged into the air inlet of the tee. There are two groups of electric valves, both located on one side of the air pump and both connected to the chest support pad. The air inlets of the two groups of electric valves are connected to the two air outlets of the tee by a hose, and the air outlets of the two groups of electric valves are connected to the airbag by an air guide tube. The inflation component is connected to the airbag. Therefore, after the patient is lifted for a long time by the airbag, the airbags in different parts of the patient can be inflated and deflated in turn by the electric valve and the air pump, so that the skin of different parts of the patient is suspended in turn, avoiding long-term pressure on one part of the skin to cause pressure sores.

[0012] Preferably, the transmission assembly includes an electric screw and a slider, the electric screw is arranged inside the base, and there are two groups of sliders, both of which are slidably arranged inside the base and are threadedly connected to the electric screw, and the two groups of sliders are respectively connected to the chest support pad and the leg support pad. When the patient is too tall and the turning pillow cannot support the patient's whole body, the electric screw can be rotated, and when the electric screw rotates, the chest support pad and the leg support pad can be moved to both sides through the slider to increase the overall length of the turning pillow, so that the turning pillow can fully support the patient's body after turning over.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model supports the patient's trunk and forehead when the patient is in a prone position, avoiding the patient's direct contact with the bed surface so as to put pressure on the patient's body. When the patient's trunk is supported, the pressure on the patient's face is reduced, thereby reducing the risk of pressure sores on the face. After the patient's forehead is supported by the head pad, the space vacated in the neck can avoid pressure on the incision of the patient with a tracheotomy. At the same time, the electrode stickers on the patient's body do not need to be removed, and the drainage tubes in the patient's chest and abdomen can also be correctly placed, thereby avoiding the risk of the drainage tubes being compressed and blocked. In addition, when in use, the chest support pad and the leg support pads can be moved to both sides according to the height of the patient through the transmission assembly in the length direction of the base support to increase the length of the turning pillow to ensure that the turning pillow can support the patient's body according to the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a prone position turning pillow;

[0016] Figure 2 This is a schematic diagram of the internal structure of the base of the prone position turning pillow (the base is a whole, and a piece is removed to show the internal structure.);

[0017] Figure 3 This is a schematic diagram of the chest support pad structure of the prone position turning pillow (the chest support pad is a whole, and a piece is removed to show the internal structure.);

[0018] Figure 4 This is a schematic diagram of the internal structure of the chest support pad of the prone position turning pillow (the chest support pad is a whole, and a piece is removed to show the internal structure.);

[0019] Figure 5 for Figure 4 A magnified schematic diagram of point A;

[0020] Figure 6 This is a schematic diagram of the coordination between the abdominal support pad and the bottom support structure of the prone position turning pillow;

[0021] Figure 7 This is a schematic diagram of the internal structure of the abdominal support pad of the prone position turning pillow (the abdominal support pad is a whole, and a piece is removed to show the internal structure.);

[0022] In the figure: 1-base, 2-transmission assembly, 21-electric screw, 22-slider, 3-chest support pad, 4-abdominal support pad assembly, 41-first abdominal support pad, 42-second abdominal support pad, 43-third abdominal support pad, 5-leg support pad, 6-airbag, 7-cylinder, 8-inflatable assembly, 81-air pump, 82-control circuit board, 83-catheter, 84-tee, 85-hose, 86-electric valve, 87-air duct, 9-headrest. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the present utility model Figure 1-7 , the technical solutions in the embodiments of the utility model are described in detail.

[0024] like Figure 1-2 As shown, a prone position turning pillow comprises a base support 1, a transmission assembly 2, a chest support pad 3, an abdominal support pad assembly 4, a leg support pad 5, an airbag 6, a cylinder 7, an inflatable assembly 8 and a headrest 9. The base support 1 used is an arc-shaped base support 1, and the arcs on both sides of the base support 1 are tangent to the arcs on both sides of the chest support pad 3, the abdominal support pad assembly 4 and the leg support pad 5. Therefore, when helping a patient to turn over, the patient's body will turn over according to the shape of the base support 1, the chest support pad 3, the abdominal support pad assembly 4 and the leg support pad 5, and the patient will not fall suddenly, so as to avoid damage to the patient's body.

[0025] like Figure 1-2 As shown, the transmission assembly 2 is arranged inside the base 1 along the length direction of the base 1, and the rotating assembly is located at the top of the base 1 and is connected to the chest support pad 3 and the leg support pad 5. Therefore, when it is necessary to extend the length of the turning pillow, the chest support pad 3 and the leg support pad 5 can be pushed out to both sides along the length direction of the base 1 through the transmission assembly 2 to increase the overall length of the turning pillow itself, thereby ensuring that the turning pillow can completely support the patient's body. The chest support pad 3 is arranged above the base 1, and the chest support pad 3 is located at one end of the base 1 and is slidably connected to the base 1.

[0026] like Figure 1-2 As shown, the transmission assembly 2 can drive the chest support pad 3 to move back and forth, and the abdominal support pad assembly 4 is located on one side of the chest support pad 3 and connected to the base 1, and is used to support the patient's abdomen after the patient turns over, and the abdominal support pad assembly 4 itself can move to both sides along the length direction of the base 1 to avoid that after the chest support pad 3 and the leg support pad 5 are pushed to both sides by the transmission assembly 2, the patient's body will be suspended in the gap between the chest support pad 3 and the leg support pad 5 and the abdominal support pad assembly 4, the leg support pad 5 is located at the other end of the base 1 and is arranged above the base 1, and the leg support pad 5 is slidably connected to the base 1 and connected to the transmission assembly 2.

[0027] like Figure 1-2As shown, the transmission assembly 2 can simultaneously push the chest support pad 3 and the leg support pad 5 to the two sides of the base 1, and there are multiple groups of airbags 6 which are respectively arranged above the chest support pad 3, the abdomen support pad assembly 4 and the leg support pad 5, and the airbags 6 are fixedly connected to the chest support pad 3, the abdomen support pad assembly 4 and the leg support pad 5 by threads and are connected to the inflation assembly 8. After the patient completes turning over, the inflation assembly 8 can be used to inflate the inside of the airbag 6 to make it expand and deform to support the patient's body, thereby avoiding hard contact between the patient's body and the chest support pad 3, the abdomen support pad assembly 4 and the leg support pad 5, and reducing the possibility of the chest support pad 3, the abdomen support pad assembly 4 and the leg support pad 5 causing pressure sores to the patient.

[0028] like Figure 1-2 As shown, there are two groups of cylinders 7, both of which are arranged inside the abdominal support pad assembly 4, and the chest support pad 3, the abdominal support pad assembly 4 and the leg support pad 5 are all provided with inflation components 8. Therefore, by controlling different inflation components 8, the air bags 6 on the chest support pad 3, the abdominal support pad assembly 4 and the leg support pad 5 can be deflated and inflated in turn, so that the patient's skin pressed on the air bags 6 of the chest support pad 3, the abdominal support pad assembly 4 and the leg support pad 5 is suspended in turn, avoiding the patient's skin from being compressed for a long time and forming pressure sores.

[0029] like Figure 1-2 As shown, the headrest 9 is at one end of the base 1 and is inserted into the chest support pad 3. The headrest 9 is also a concave arc-shaped headrest 9. Therefore, after the patient completes the turning operation, the patient's forehead can be placed in the concave arc of the headrest 9 to lift the patient's head and let the patient's neck hang in the air to avoid bending of the drainage tube inserted into the patient's body from the patient's neck.

[0030] like Figure 1-2 As shown, the transmission assembly 2 includes an electric screw 21 and a slider 22. The electric screw 21 is arranged inside the base 1 along the length direction of the base 1, and the electric screw 21 is hinged on the base 1, so the electric screw 21 can rotate forward or reverse inside the base 1. There are two groups of sliders 22, both of which are vertically slidably arranged inside the base 1, and the sliders 22 are threadedly connected to the electric screw 21. The thread rotation directions of the two groups of sliders 22 are opposite, and the two groups of sliders 22 are respectively connected to the chest support pad 3 and the leg support pad 5 by screws.

[0031] like Figure 1-2As shown, when the electric screw 21 rotates forward, the electric screw 21 can synchronously drive the slider 22 to move outward along the length direction of the base 1, and when the electric screw 21 rotates reversely, it can synchronously drive the two groups of sliders 22 to move toward the center direction of the base 1. Because the sliders 22 are connected to the chest support pad 3 and the leg support pad 5 by screws, the chest support pad 3 and the leg support pad 5 will be synchronously driven to move during the movement of the slider 22, thereby extending or shortening the length of the turning pillow.

[0032] like Figure 3-5 As shown, the inflation component 8 includes an air pump 81, a control circuit board 82, a catheter 83, a tee 84, a hose 85, an electric valve 86 and an air duct 87. A groove is provided inside the chest support pad 3. The air pump 81 is arranged inside the groove along the width direction of the chest support pad 3, and the air pump 81 is fixedly connected to the inside of the chest support pad 3 by screws. The control circuit board 82 is arranged inside the chest support pad 3 and is located above the air pump 81, and the control circuit board 82 is fixedly connected to the outer casing of the air pump 81 by screws, and the control circuit board 82 is electrically connected to the air pump 81 and the electric valve 86.

[0033] like Figure 3-5 As shown, when the air pump 81 needs to be turned on and off, the external electromagnetic signal can be received by the control circuit board 82, so as to turn the air pump 81 on or off through the control circuit board 82. The conduit 83 is arranged inside the chest support pad 3 and one end of the conduit 83 is plugged into the air outlet of the air pump 81, and the other end of the conduit 83 is plugged into the air inlet of the tee 84. The tee 84 is located on one side of the air pump 81 and is placed in the groove of the chest support pad 3. There are two groups of electric valves 86 and both are located on one side of the air pump 81. The two groups of electric valves 86 are fixed to the inside of the chest support pad 3 by screws, and the air inlets of the two groups of electric valves 86 are connected to the two air outlets of the tee 84 by a hose 85.

[0034] like Figure 3-5 As shown, when the gas compressed by the air pump 81 enters the interior of the tee 84 through the conduit 83, it will be diverted by the tee 84 and then enter the interior of the corresponding electric valve 86. The air outlets of the two groups of electric valves 86 are connected to the two groups of air bags 6 on the chest support pad 3 by air guide tubes 87. One end of the air guide tube 87 is plugged into the electric valve 86, and the other end of the air guide tube 87 is threadedly connected to the air bag 6. Therefore, the gas entering the interior of the electric valve 86 can enter the interior of the two groups of air bags 6 on the chest support pad 3 through the air guide tube 87, thereby causing the air bag 6 to expand and deform. When the gas inside the air bag 6 needs to be released, the corresponding electric valve 86 can be opened by controlling the circuit board 82, and the gas inside the air bag 6 can enter the interior of the electric valve 86 through the air guide tube 87, and then flow out through the electric valve 86.

[0035] like Figure 6-7 As shown, the abdominal support pad assembly 4 includes a first abdominal support pad 41, a second abdominal support pad 42 and a third abdominal support pad 43. The second abdominal support pad 42 is laterally above the base 1, and the second abdominal support pad 42 is fixedly connected to the top of the base 1 by screws. The first abdominal support pad 41 and the third abdominal support pad 43 are also laterally arranged above the base 1, and the first abdominal support pad 41 and the third abdominal support pad 43 are respectively located on both sides of the second abdominal support pad 42, and the first abdominal support pad 41 and the third abdominal support pad 43 are both slidably connected to the base 1.

[0036] like Figure 6-7 As shown, there are two groups of cylinders 7, both of which are arranged inside the second abdominal support pad 42, and the two groups of cylinders 7 are respectively located on both sides of the second abdominal support pad 42, the output ends of the two groups of cylinders 7 are in opposite directions, and the output ends of the two groups of cylinders 7 are respectively connected to the first abdominal support pad 41 and the third abdominal support pad 43 by screws. Therefore, when it is necessary to extend the length of the turning pillow, it is only necessary to start the cylinders 7 to push open the first abdominal support pad 41 and the third abdominal support pad 43. After use, the cylinders 7 can also be used to retract the first abdominal support pad 41 and the third abdominal support pad 43.

[0037] The movement process of this embodiment is as follows: first, after the patient is moved to one side of the bed, the head pad can be removed from the chest support pad 3, and then the medical staff can start the transmission component 2 according to the patient's height. After the transmission component 2 is started, the chest support pad 3 and the leg support pad 5 at both ends of the base 1 can be driven by the screw and the slider 22 to move outward at the same time along the length direction of the base 1. After adjusting the positions of the chest support pad 3 and the leg support pad 5, the medical staff can start the cylinder 7 again according to the position of the drainage tube in the patient's abdomen to open the first abdominal support pad 41 and the third abdominal support pad 43 to both sides.

[0038] After there is a gap between adjacent abdominal support pads, the end of the turning pillow can be placed on the patient's shoulder position, and the turning pillow can be placed on the patient's body. The patient's outer limbs then embrace the turning pillow, and the inner limbs lie flat against the torso. The drainage tube and electrode patch tubes and wires are then placed inside the gap on the turning pillow. The nurses standing on both sides of the bed cooperate to push the patient's shoulder and hip force points, and the patient can turn his body to complete the prone position. The head pad is then placed on the patient's head, with the head pad resting on the patient's forehead.

[0039] Then the inflation assembly 8 can be started to inflate the airbag 6. After the airbag 6 is expanded and deformed by the air, the patient can be propped up to avoid direct contact between the patient and the bed surface, the chest support pad 3, the abdomen support pad assembly 4, and the leg support pad 5. During a long period of prone position, the airbag 6 at different positions of the patient only needs to be inflated or deflated by controlling the circuit board 82, the electric valve 86 and the air pump 81, and the pressure at different positions of the patient will change. In this way, the pressure at different positions of the patient is changed, reducing the risk of pressure injury to the patient.

[0040] The above embodiments are only for illustrating the technical idea of ​​the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A prone position turning pillow, characterized in that: The invention comprises a base (1), a transmission assembly (2), a chest support pad (3), an abdominal support pad assembly (4), a leg support pad (5), an air bag (6), a cylinder (7), an inflatable assembly (8) and a headrest (9), wherein the transmission assembly (2) is arranged inside the base (1) and located at the top of the base (1), the chest support pad (3) is located at one end of the base (1) and is arranged above the base (1), and the chest support pad (3) is connected to the transmission assembly (2), the abdominal support pad assembly (4) is located at one side of the chest support pad (3) and is connected to the base (1), and the leg support pad (5) is located at the base (1). ) and is arranged above the base (1), and the leg support pad (5) is connected to the transmission assembly (2), a plurality of air bags (6) are provided and are respectively connected above the chest support pad (3), the abdomen support pad assembly (4) and the leg support pad (5), two groups of air cylinders (7) are provided and are both arranged inside the abdomen support pad assembly (4), an inflatable assembly (8) is provided inside the chest support pad (3), the abdomen support pad assembly (4) and the leg support pad (5), and the inflatable assembly (8) is connected to the air bag (6), and a headrest (9) is located at one end of the base (1) and is plugged onto the chest support pad (3).

2. The prone position turning pillow according to claim 1, characterized in that: The chest support pad (3), the abdomen support pad assembly (4) and the leg support pad (5) are all arc-shaped support pads.

3. The prone position turning pillow according to claim 2, characterized in that: The abdominal support pad assembly (4) comprises a first abdominal support pad (41), a second abdominal support pad (42) and a third abdominal support pad (43); the second abdominal support pad (42) is laterally connected above the base (1); the first abdominal support pad (41) and the third abdominal support pad (43) are respectively located at two ends of the second abdominal support pad (42); and the first abdominal support pad (41) and the third abdominal support pad (43) are both slidably arranged on the base (1); and two groups of cylinders (7) are both arranged inside the second abdominal support pad (42).

4. The prone position turning pillow according to claim 3, characterized in that: The two groups of cylinders (7) are respectively located at two sides of the interior of the second abdominal support pad (42); the output ends of the two groups of cylinders (7) are in opposite directions, and the output ends of the two groups of cylinders (7) are respectively connected to the first abdominal support pad (41) and the third abdominal support pad (43).

5. The prone position turning pillow according to claim 1, characterized in that: The inflation assembly (8) comprises an air pump (81), a control circuit board (82), a catheter (83), a three-way connection (84), a hose (85), an electric valve (86) and an air guide tube (87); the air pump (81) is arranged inside the chest support pad (3) and connected to the chest support pad (3); the control circuit board (82) is located above the air pump (81) and connected to the air pump (81); and the control circuit board (82), the air pump (81) and the electric valve (86) are all electrically connected. One end of the catheter (83) is plugged into the air pump (81), and the other end of the catheter (83) is plugged into the air inlet of the three-way connection (84). Two groups of electric valves (86) are located on one side of the air pump (81) and are connected to the chest support pad (3). The air inlets of the two groups of electric valves (86) are connected to the two air outlets of the three-way connection (84) by means of hoses (85), and the air outlets of the two groups of electric valves (86) are connected to the air bag (6) by means of air guide tubes (87).

6. The prone position turning pillow according to claim 1, characterized in that: The transmission assembly (2) comprises an electric screw (21) and a slider (22); the electric screw (21) is arranged inside the base (1); two groups of sliders (22) are slidably arranged inside the base (1) and are threadedly connected to the electric screw (21); and the two groups of sliders (22) are respectively connected to the chest support pad (3) and the leg support pad (5).

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