A pressure-sensitive inflatable chest and hip support pad

Abstract

This utility model relates to a pressure-sensitive inflatable and deflated chest and hip support pad, including a base, a control module, and an inflation / deflation assembly. The base is equipped with a chest support airbag assembly and a hip support airbag assembly, which are separately mounted on a first mounting part and a second mounting part of the base. Each airbag is equipped with a monitoring component for sensing internal air pressure and surface temperature, and each airbag is connected to the inflation / deflation assembly. Both the inflation / deflation assembly and the monitoring component are electrically connected to the control module. The control module inflates and deflates the airbags based on the monitoring results, ensuring that adjacent airbags do not deflate simultaneously. The base is equipped with an adjustable height component. This utility model, by real-time monitoring and adjustment of the internal air pressure and surface temperature of the airbags, allows the airbags to better conform to the patient's chest and hips, maintaining appropriate support strength and temperature, and reducing the pressure and discomfort in the chest and hip areas when the patient lies prone for extended periods.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a pressure-sensitive inflatable and deflated chest and hip support pad. Background Technology

[0002] In the medical field, the prone position is commonly used in surgical procedures, intensive care, and rehabilitation. When maintaining a prone position for extended periods, the patient's chest and hips require effective support. Currently, for patients who need to maintain a prone position for long periods, multi-module positioning pads are typically used to provide supplementary support for the patient's head, chest, hips, and legs.

[0003] For example, Chinese patent CN205947963U discloses a prone positioning pad, which includes a pad body with a headrest for supporting the head and a body pad for supporting the torso and legs detachably connected to the pad body. The headrest is horseshoe-shaped and includes a forehead pad and cheek pads connected to both ends of the forehead pad. The opening of the headrest faces the body pad. The body pad has a cavity corresponding to the chest and abdomen of the patient. Both the headrest and body pad are inflatable and can be inflated independently. This positioning pad uses the pad body as the connecting body. The headrest supports the patient's head, and the body pad supports the rest of the body except for the head. The body pad has a cavity, which allows the patient's chest and abdomen to expand and contract freely when prone, avoiding pressure from the body pad on the chest and abdomen. However, because most of the pressure on the patient is concentrated in the chest and hips when prone, the support strength and contact area of ​​the body pad are fixed and cannot be dynamically adjusted according to changes in the contour of the patient's chest and hips or changes in pressure distribution caused by prolonged prone position. This easily leads to local pressure concentration, and prolonged pressure can cause skin ischemia and hypoxia, increasing the risk of pressure sores. Especially for obese, thin, or sensitive patients, the fixed support surface makes it difficult to distribute the weight of the chest and hips, exacerbating the problem of impaired local blood circulation. Furthermore, the body pad needs to be used in conjunction with the head pad. Since different patients have different body shapes and neck lengths, the relative position between the body pad and the head pad of this positioning pad is not easy to adjust, which limits its use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pressure-sensitive inflatable and deflated chest and hip support pad, which addresses the above-mentioned deficiencies of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A pressure-sensitive, inflatable chest and hip support pad is constructed, comprising a base, a control module, and an inflation / deflation assembly. The base is equipped with a chest support airbag assembly and a hip support airbag assembly, which are separately mounted on a first mounting portion and a second mounting portion of the base. Each airbag is equipped with a monitoring component for sensing internal air pressure and surface temperature, and each airbag is connected to the inflation / deflation assembly. Both the inflation / deflation assembly and the monitoring component are electrically connected to the control module. The control module inflates or deflates the airbags based on the monitoring results. During inflation / deflation, adjacent airbags do not deflate simultaneously. The base is equipped with a height-adjustable component electrically connected to the control module, used to drive the first and second mounting portions to rise and fall simultaneously, and to drive the second mounting portion to rise and fall independently.

[0007] As an improvement to the chest and hip support pad, the monitoring component includes a pressure sensor and a temperature sensor. Each airbag has a contact surface that fits against the patient's skin. Both the pressure sensor and the temperature sensor are disposed on the inner wall of the airbag, and the temperature sensor is positioned corresponding to the contact surface.

[0008] As an improvement to the chest and hip support pad, the inflation / deflation assembly includes a pump and an air duct. The air duct has a main pipeline connected to the pump and several branch pipelines connected to the airbag. Each branch pipeline is equipped with a solenoid valve.

[0009] As an improvement to the chest and hip support pad, the base includes a base plate and a movable plate mounted on the base plate, the movable plate being movable on the base plate in a vertical direction; the adjustment assembly includes a first lifting component disposed on the base plate and a second lifting component disposed on the movable plate, the first lifting component being connected to the movable plate, and the first mounting part and the second mounting part being respectively mounted on the movable plate and the second lifting component.

[0010] As an improvement to the chest and hip support pad, the first lifting component includes a motor mounted on the base plate, a lead screw mounted on the output shaft of the motor, and a threaded sleeve that is threadedly engaged with the lead screw on the movable plate. The motor is used to drive the lead screw to rotate so as to lift the movable plate.

[0011] As an improvement to the chest and hip support pad, the second lifting component includes a guide sleeve disposed on the movable plate, the guide sleeve being slidably connected to a guide shaft, the end of the guide shaft being connected to the second mounting part, and the driver being connected to the second mounting part for driving the second mounting part to move and lift.

[0012] As an improvement to the chest and hip support pad, it also includes a cooling component connected to the inflation / deflation assembly. The cooling component has multiple air outlets, which are distributed in the gaps between the airbags in the chest support airbag group and the hip support airbag group, and the air outlets are all facing the side of the base to accelerate the airflow between the airbags.

[0013] As an improvement to the chest and hip support pad, the cooling component includes a main channel and at least two branch channels connected to the main channel. The two branch channels are respectively disposed in the first mounting part and the second mounting part, and a plurality of air outlets are opened on the two branch channels.

[0014] As an improvement to the chest and hip support pad, the contact surfaces of the airbags are all provided with flexible pads, and the surface of the flexible pads is provided with breathable micropores.

[0015] The beneficial effects of this invention are as follows: By independently inflating and deflating each airbag, dynamic adjustment of the support force for different areas of the chest and hips can be achieved to adapt to changes in the patient's body contour and pressure distribution. The inflation and deflation status of each airbag can be adjusted in real time according to changes in the contour and pressure distribution of the patient's chest and hips, avoiding localized pressure concentration and reducing the risk of pressure ulcers. Adjacent airbags do not deflate simultaneously, ensuring that the patient's body receives continuous and stable support during the adjustment of support force, improving safety and comfort. Real-time monitoring and adjustment of the internal air pressure and surface temperature of the airbags allows them to better conform to the patient's chest and hips, maintaining appropriate support force and temperature, reducing the pressure and discomfort in the chest and hip areas when the patient lies prone for extended periods. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the chest and hip support pad provided by this utility model;

[0018] Figure 2 This is a side view of the chest and hip support pad provided by this utility model;

[0019] Figure 3 This is a cross-sectional view of the air bladder of the chest and hip support pad provided by this utility model;

[0020] Figure 4 This is a framework diagram of the control module and inflation / deflation assembly of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the first mounting part of this utility model when it is raised;

[0022] Figure 6 This is a schematic diagram of the structure of the second mounting part of this utility model when it is raised;

[0023] Figure 7 This is a partial three-dimensional structural diagram of the chest and hip support pad provided by this utility model.

[0024] In the diagram: 1. Base; 11. Base plate; 12. Movable plate; 13. First mounting part; 14. Second mounting part; 2. Airbag; 21. Flexible pad; 3. Chest support airbag assembly; 4. Hip support airbag assembly; 5. Control module; 6. Inflation / depression assembly; 61. Pump; 7. Monitoring assembly; 71. Pressure sensor; 72. Temperature sensor; 8. Adjustment assembly; 81. First lifting component; 811. Motor; 812. Lead screw; 813. Threaded sleeve; 82. Second lifting component; 821. Guide sleeve; 822. Guide shaft; 823. Driver; 9. Cooling assembly; 91. Diversion pipe; 92. Air outlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] A pressure-sensitive, inflatable chest and hip support pad, such as Figure 1 and Figure 2 As shown, the system includes a base 1, a control module 5, and an inflation / deflation assembly 6. The base 1 is equipped with a chest support airbag assembly 3 and a hip support airbag assembly 4, which are separately mounted on the first mounting portion 13 and the second mounting portion 14 of the base 1. Each airbag 2 is equipped with a monitoring component 7 for sensing internal air pressure and surface temperature, and each airbag 2 is connected to the inflation / deflation assembly 6. Both the inflation / deflation assembly 6 and the monitoring component 7 are electrically connected to the control module 5. The control module 5 is used to inflate and deflate the airbags 2 based on the monitoring results of the monitoring component 7. During inflation / deflation, adjacent airbags 2 do not deflate simultaneously. The base 1 is equipped with a height-adjustable component 8, which is electrically connected to the control module 5. This component is used to drive the first mounting portion 13 and the second mounting portion 14 to rise and fall simultaneously, and to drive the second mounting portion 14 to rise and fall individually.

[0027] It should be noted that since this support pad needs to be used in conjunction with the head support pad, the height of the support pad needs to be matched with the head support pad. Also, since patients of different body sizes have different applicable heights and postures, the relative height of the chest and hip support pad relative to the head support pad needs to be finely adjusted. Furthermore, when the patient is in a prone position, the hips are in a raised position, so the relative height of the hip support airbag group 4 relative to the chest support airbag group 3 needs to be finely adjusted based on the patient's feedback.

[0028] Specifically, the monitoring component 7 on airbag 2 senses the internal air pressure and surface temperature in real time and transmits the data to the control module 5. The control module 5 determines whether the support force of airbag 2 needs to be adjusted based on the monitoring data. When inflation is required, the inflation / deflation component 6 is controlled to inflate airbag 2 to increase the support force; when deflation is required, the inflation / deflation component 6 is controlled to release gas from airbag 2 to reduce the support force. During the deflation process, adjacent airbags 2 do not deflate simultaneously to ensure the continuity and stability of support. Through independent inflation and deflation operations of each airbag 2, dynamic adjustment of the support force in different areas of the chest and hips is achieved to adapt to changes in the patient's body contour and pressure distribution. The inflation and deflation status of each airbag 2 can be adjusted in real time according to the contour and pressure distribution changes of the patient's chest and hips, avoiding local pressure concentration and reducing the risk of pressure sores. Adjacent airbags 2 do not deflate at the same time, ensuring that the patient's body always receives continuous and stable support during the support adjustment process, improving safety and comfort. By simultaneously monitoring the internal air pressure and surface temperature of the airbag 2, a more comprehensive understanding of the contact status between the patient and the support pad can be obtained, allowing the support pad to more accurately adapt to the patient's needs and further optimize the support effect.

[0029] By monitoring and adjusting the internal air pressure and surface temperature of airbag 2 in real time, airbag 2 can better conform to the patient's chest and hips, maintaining appropriate support strength and temperature, and reducing the pressure and discomfort in the chest and hip areas when the patient is prone for a long time. The airbags 2 of the chest support airbag group 3 and the hip support airbag group 4 are arranged alternately to better adapt to the contours of the chest and hips, providing close support, distributing pressure, reducing local pressure concentration, and further reducing the possibility of pressure ulcers. In addition, the monitoring component 7 is set on airbag 2 and does not come into direct contact with the patient's face, so as to improve the comfort of the patient's face in the prone position.

[0030] By adjusting the settings of component 8, the first mounting part 13 and the second mounting part 14 can be driven to rise and fall simultaneously according to the patient's body size and the height of the head support pad, so that the overall height of the chest and hip support pad matches the height of the head support pad, meeting the height and posture requirements of patients of different body sizes. When the patient is in a prone position, the second mounting part 14 can be raised and lowered independently by adjusting component 8, and the height position of the hip support airbag group 4 relative to the chest support airbag group 3 can be finely adjusted according to the patient's feedback, adapting to the patient's hips being raised, improving the patient's comfort when prone, distributing the weight of the chest and hips, avoiding local pressure concentration, and reducing the risk of pressure sores.

[0031] Furthermore, the control module 5 is a microcontroller. The microcontroller models include, but are not limited to: Arduino Uno, STM32F103C8T6 microcontroller, and Raspberry Pi Zero W. It is responsible for analyzing and processing the data collected by the monitoring component 7, and issuing control commands to operate the inflation / deflation component 6 according to preset algorithms and logic.

[0032] In other embodiments, the number of rows of airbags 2 in the chest support airbag group 3 and the hip support airbag group 4 can be set to 2, 3, 4, 5, 6, 7 or 8 rows as needed.

[0033] In other embodiments, no solid support structure is provided in the middle area between the first mounting part 13 and the second mounting part 14, forming a suspended space; the chest support airbag group 3 and the hip support airbag group 4 are distributed along the upper surface areas of the first mounting part 13 and the second mounting part 14, respectively, so that the middle area of ​​the two sets of airbags is suspended. When the patient is prone, the chest, abdomen and male scrotum area hang naturally in the suspended space, without contacting any solid structure of the support pad, only the outer side of the chest and the outer side of the hip are supported by the airbag group. The suspended space reserves physiological activity space for respiratory movements, avoiding direct compression of the chest and abdomen by the airbags and affecting respiratory function, such as restricting diaphragmatic movement, which is suitable for the long-term prone position needs of surgical patients. Physical isolation avoids contact between the scrotum and the support pad, preventing local blood circulation disorders, nerve damage or skin ulceration caused by long-term pressure, reflecting the protective design for special physiological structures. The support force is concentrated in the areas with thicker muscles, such as the outer side of the chest and the outer side of the hip, and the pressure is further dispersed by the dynamic inflation and deflation of the airbag group, rather than acting directly on the soft tissues or sensitive organs of the chest and abdomen, reducing the local pressure peak and reducing the risk of pressure sores. The suspended space promotes air circulation and avoids stuffiness and sweat accumulation caused by the skin of the chest and abdomen sticking to the support pad. Combined with the breathable micropores of the flexible airbag pad 21, it further improves the local microenvironment and enhances the patient's comfort and tolerance in the prone position.

[0034] In some embodiments of this application, such as Figure 3 and Figure 4As shown, the monitoring component 7 includes a pressure sensor 71 and a temperature sensor 72. Both airbags 2 have contact surfaces that adhere to the patient's skin. The pressure sensor 71 and temperature sensor 72 are both located on the inner wall of the airbag 2, with the temperature sensor 72 corresponding to the contact surface. Specifically, the pressure sensor 71 senses the internal air pressure of the airbag 2 in real time, and the temperature sensor 72 senses the temperature at the contact surface between the airbag 2 and the patient's skin in real time. Both sensors transmit the monitoring data synchronously to the control module 5. The control module 5 determines whether the current support strength of the airbag 2 needs adjustment based on the air pressure data. If the air pressure is too high, it deflates; if it is too low, it inflates. Based on the temperature data, it determines whether there is abnormal temperature rise in the patient's local skin area. If the temperature is too high, it may indicate prolonged compression or poor blood circulation, thereby controlling the inflation / deflation component 6 to perform the corresponding operation.

[0035] The pressure sensor 71 provides real-time feedback on the internal air pressure of the airbag 2, allowing the control module 5 to precisely adjust the inflation and deflation of the airbag 2. This ensures the support force adapts to changes in the patient's chest and hip contours and pressure distribution, preventing localized pressure concentration and reducing the risk of pressure ulcers. The temperature sensor 72, located at the contact surface, monitors the patient's skin surface temperature in real time, promptly detecting localized temperature abnormalities caused by prolonged pressure, such as warming due to ischemia and hypoxia. This helps determine whether the support position or force needs adjustment, further enhancing the support pad's adaptability to the patient's physical condition. The combination of pressure and temperature data provides a more comprehensive reflection of the contact state between the patient and the airbag 2, such as the correlation between pressure and temperature changes, enabling the control module 5 to more accurately adjust inflation and deflation, thus improving the support pad's intelligence and comfort.

[0036] Furthermore, the temperature sensor 72 can be configured as a digital temperature sensor, a linear temperature sensor, or a flexible temperature sensor as required; the pressure sensor 71 can be configured as a silicon pressure sensor or a thin-film pressure sensor as required.

[0037] In some embodiments of this application, the inflation / deflation assembly 6 includes a pump 61 and a gas guide pipe. The gas guide pipe has a main pipe connected to the pump 61 and several branch pipes connected to the airbags 2. Each branch pipe is equipped with a solenoid valve. Specifically, the pump 61 delivers or extracts gas into the gas guide pipe through the main pipe. The branch pipes are connected to each airbag 2 respectively. The solenoid valves on the branch pipes are controlled by the control module 5 to open or close. During inflation, the control module 5 instructs the solenoid valve of the corresponding branch pipe to open, and the pump 61 inflates the target airbag 2 through the main pipe and branch pipes until the internal air pressure reaches a preset value. During deflation, the control module 5 instructs the solenoid valve of the corresponding branch pipe to open, and the gas in the airbag 2 flows back to the pump 61 through the branch pipes and main pipe or is directly discharged until the internal air pressure reaches the preset value. Each branch line's solenoid valve is independently controlled, allowing for inflation and deflation of individual airbags 2. This enables differentiated adjustment of the support strength of each airbag 2 in the chest support airbag group 3 and the hip support airbag group 4, adapting to the contours and pressure distribution of different areas of the patient's body. By controlling the on / off state of adjacent airbags 2 to prevent simultaneous deflation, it avoids patient imbalance caused by a sudden decrease in local support strength, ensuring stable support throughout the adjustment process and improving safety. The pump 61, through the gas transmission path between the main line and branch lines, combined with the rapid opening and closing characteristics of the solenoid valves, can promptly execute the inflation / deflation commands of the control module 5, achieving real-time response to feedback data from the monitoring component 7 and improving the dynamic adjustment efficiency of the support pad.

[0038] Furthermore, the pump 61 can be equipped with an oil-free silent air pump, a miniature diaphragm air pump, or a small piston air pump, depending on the requirements.

[0039] In some embodiments of this application, the base 1 includes a base plate 11 and a movable plate 12 mounted on the base plate 11, the movable plate 12 being movable in a vertical direction on the base plate 11; the adjustment assembly 8 includes a first lifting component 81 disposed on the base plate 11 and a second lifting component 82 disposed on the movable plate 12, the first lifting component 81 being connected to the movable plate 12, and a first mounting part 13 and a second mounting part 14 being respectively mounted on the movable plate 12 and the second lifting component 82.

[0040] Specifically, the base plate 11 serves as the fixed foundation of the base 1. The movable plate 12 is installed on the base plate 11 and can move vertically. The first lifting component 81 is located on the base plate 11 and connected to the movable plate 12. By driving the movable plate 12 to rise and fall, it drives the first mounting part 13 and the second lifting component 82 on it to move synchronously. The second lifting component 82 is located on the movable plate 12 and connected to the second mounting part 14. It can independently drive the second mounting part 14 to rise and fall vertically on the movable plate 12. When the first lifting component 81 is activated, the movable plate 12 moves vertically on the base plate 11 as a whole, causing the first mounting part 13 and the second mounting part 14 to rise and fall synchronously. When the first lifting component 81 remains stationary, the second lifting component 82 is activated, driving only the second mounting part 14 to move vertically on the movable plate 12 alone. By driving the movable plate 12 to rise and fall as a whole through the first lifting component 81, the overall height of the chest support airbag group 3 and the hip support airbag group 4 can be adjusted to match the height of the head support pad, adapting to the prone position needs of patients of different body sizes. The height of the hip support airbag assembly 4 can be individually adjusted via the second lifting component 82. This allows for fine-tuning of the relative height of the hips to the chest, taking into account the physiological characteristic of the hips supporting the body when the patient is prone, thus optimizing the fit to the body curve. The split lifting design allows for independent adjustment of the chest and hip support heights, avoiding the localized pressure concentration caused by the uniform height of traditional fixed support pads, such as the hips being unsupported or the chest being excessively compressed. This is especially suitable for obese, thin, or patients with special body types, reducing the risk of skin ischemia and hypoxia. Dynamic adjustment of the support height can respond in real time to patient feedback, such as changes in comfort. Through the control module 5, the inflation and deflation component 6 is linked to further optimize the synergistic effect of support strength and height, improving the safety and comfort of prone position therapy.

[0041] In some embodiments of this application, such as Figure 5 As shown, the first lifting component 81 includes a motor 811 mounted on the base plate 11. A lead screw 812 is mounted on the output shaft of the motor 811. The movable plate 12 is provided with a threaded sleeve 813 that is threadedly engaged with the lead screw 812. The motor 811 is used to drive the lead screw 812 to rotate, thereby driving the movable plate 12 to rise and fall. Specifically, the motor 811 acts as a power source, driving the lead screw 812 on the output shaft to rotate after starting. The movable plate 12 is threadedly engaged with the lead screw 812 through the threaded sleeve 813. When the lead screw 812 rotates, the threaded sleeve 813 moves along the axis of the lead screw 812 due to the threaded engagement, thereby driving the movable plate 12 to rise and fall vertically on the base plate 11. By controlling the forward and reverse rotation and the number of rotations of the motor 811, the lifting direction and height of the movable plate 12 can be precisely controlled. The threaded drive between the lead screw 812 and the threaded sleeve 813 has high transmission accuracy. The height of the movable plate 12 can be precisely controlled by controlling the rotation amount of the motor 811 (such as speed and number of revolutions), so as to meet the personalized needs of different patients for the overall height of the chest and hip support pad, such as matching the height of the head support pad.

[0042] In some embodiments of this application, such as Figure 6 and Figure 7 As shown, the second lifting component 82 includes a guide sleeve 821 disposed on the movable plate 12. A guide shaft 822 is slidably connected to the guide sleeve 821, and the end of the guide shaft 822 is connected to the second mounting part 14. A driver 823 is connected to the second mounting part 14 and is used to drive the second mounting part 14 to move and lift. Specifically, the driver 823 is an electric push rod or a cylinder. The guide sleeve 821 is fixed to the movable plate 12, and the guide shaft 822 is slidably connected to the guide sleeve 821. The end of the guide shaft 822 is fixedly connected to the second mounting part 14. The driver 823 is connected to the second mounting part 14 and drives the second mounting part 14 to move vertically by outputting a pushing or pulling force. The guide shaft 822 slides synchronously within the guide sleeve 821. By utilizing the limiting effect of the guide sleeve 821 on the guide shaft 822, the driver ensures that the second mounting part 14 maintains a linear motion trajectory during lifting and lowering, avoiding swaying or deviation. The second mounting part 14 is moved independently by the driver 823, which in turn drives the hip support airbag assembly 4 to rise and fall. This allows for independent adjustment of the hip support height relative to the chest support height, precisely adapting to the physiological posture of the patient's hips supporting the body when lying prone, and avoiding the limitations of the linkage adjustment between the chest and hip support heights.

[0043] In some embodiments of this application, a cooling component 9 connected to the inflation / deflation assembly 6 is also included. The cooling component 9 has multiple air outlets 92, which are distributed in the gaps between the airbags 2 in the chest support airbag group 3 and the groin support airbag group 4, and the air outlets 92 all face the side of the base 1 to accelerate airflow in the gaps between the airbags 2. Specifically, the pump 61 of the inflation / deflation assembly 6 generates airflow, which is delivered to the cooling component 9 through pipelines; the multiple air outlets 92 of the cooling component 9 are distributed in the gaps between the airbags 2 in the chest support airbag group 3 and the groin support airbag group 4, and the air outlets 92 face the side of the base 1; when the airflow is ejected from the air outlets 92, it flows to the side along the gaps between the airbags 2, forming a directional airflow path, thereby accelerating airflow in the gaps between the airbags 2. When the airflow flows through the gaps between the airbags 2, it can carry away the heat generated by friction or pressure in the area where the airbags 2 contact the patient's skin, reduce the local temperature, avoid skin ischemia and hypoxia caused by prolonged high temperature, and help reduce the risk of pressure sores. Directional airflow reduces air stagnation within the gaps of the airbags 2, improving air circulation efficiency, helping to keep the contact surface dry, reducing skin dampness and sensitivity caused by sweat buildup, and improving patient comfort when lying prone. The cooling component 9 and the inflation / deflation component 6 share the same air source, simplifying the piping layout, avoiding additional power units, and improving the integration and economy of the overall support pad structure.

[0044] In some embodiments of this application, the cooling component 9 includes a main flow pipe and two branch flow pipes 91 connected to the main flow pipe. The two branch flow pipes 91 are respectively disposed in the first mounting part 13 and the second mounting part 14, and multiple air outlets 92 are opened on the two branch flow pipes 91. Specifically, the main flow pipe is connected to the pump 61 of the inflation / deflation component 6 and is controlled to open and close by an electric valve. After receiving airflow, it is branched through the branch flow pipes 91 to the chest support airbag group 3 and the groin support airbag group 4. The two branch flow pipes 91 are respectively arranged along the first mounting part 13 and the second mounting part 14, and the multiple air outlets 92 on them face the gap between the airbags 2, forming a directional airflow in the gap between the chest and groin airbags 2, accelerating the exchange of air between the gap and the outside.

[0045] In some embodiments of this application, a flexible pad 21 is provided on the contact surface of the airbag 2, and the surface of the flexible pad 21 is provided with breathable micropores. Specifically, the material of the flexible pad 21 can be silicone or the sponge. The flexible pad 21 conforms to the patient's skin through its soft material properties, deforms under pressure, fills the gap between the airbag 2 and the skin, and forms an adaptive contact surface; the breathable micropores penetrate the surface of the flexible pad 21 and the contact surface of the airbag 2, allowing the skin surface to communicate with the external environment through the micropores, allowing air to flow through the micropores. The deformability of the flexible pad 21 can increase the skin contact area, evenly distribute the support force of the airbag 2 to the contact area, reduce local pressure peaks, and reduce the risk of skin ischemia and hypoxia caused by pressure concentration, which is especially suitable for obese, thin, or sensitive skin patients. The breathable micropores promote air exchange between the skin surface and the outside world, accelerate sweat evaporation, reduce the humidity of the contact surface, avoid skin maceration and inflammation caused by moisture, and improve the comfort of patients lying prone for a long time.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A pressure sensitive inflation and deflation bustle pad, characterized by, The device includes a base, a control module, and an inflation / deflation assembly. The base is equipped with a chest support airbag assembly and a groin support airbag assembly, which are separately mounted on a first mounting portion and a second mounting portion of the base. Each airbag is equipped with a monitoring component for sensing internal air pressure and surface temperature, and each airbag is connected to the inflation / deflation assembly. Both the inflation / deflation assembly and the monitoring component are electrically connected to the control module. The device is used to inflate and deflate the airbags based on the monitoring results of the monitoring components. During inflation / deflation, adjacent airbags do not deflate simultaneously. The base is equipped with a height-adjustable component, which is electrically connected to the control module and is used to drive the first and second mounting portions to rise and fall simultaneously, and to drive the second mounting portion to rise and fall independently.

2. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 1, characterized in that, The monitoring components include a pressure sensor and a temperature sensor. Each airbag has a contact surface that fits against the patient's skin. Both the pressure sensor and the temperature sensor are disposed on the inner wall of the airbag, and the temperature sensor is positioned corresponding to the contact surface.

3. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 1, characterized in that, The inflation / deflation assembly includes a pump and an air guide pipe. The air guide pipe has a main pipe connected to the pump and several branch pipes connected to the airbag. Each branch pipe is equipped with a solenoid valve.

4. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 1, characterized in that, The base includes a base plate and a movable plate mounted on the base plate, the movable plate being movable on the base plate in a vertical direction; the adjustment assembly includes a first lifting component disposed on the base plate and a second lifting component disposed on the movable plate, the first lifting component being connected to the movable plate, and the first mounting part and the second mounting part being respectively mounted on the movable plate and the second lifting component.

5. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 4, characterized in that, The first lifting component includes a motor mounted on the base plate, a lead screw mounted on the output shaft of the motor, and a threaded sleeve that is threadedly engaged with the lead screw on the movable plate. The motor is used to drive the lead screw to rotate so as to lift the movable plate.

6. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 4, characterized in that, The second lifting component includes a guide sleeve disposed on the movable plate, a guide shaft slidably connected to the guide sleeve, the end of the guide shaft being connected to the second mounting part, and a driver being connected to the second mounting part for driving the second mounting part to move and lift.

7. The pressure-sensitive inflatable and deflated chest and hip support pad according to any one of claims 1-6, characterized in that, It also includes a cooling component connected to the inflation / deflation assembly. The cooling component has multiple air outlets, which are distributed in the gaps between the airbags in the chest support airbag group and the hip support airbag group, and the air outlets are all facing the side of the base to accelerate the airflow between the airbags.

8. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 7, characterized in that, The cooling component includes a main pipe and at least two branch pipes connected to the main pipe. The two branch pipes are respectively disposed in the first mounting part and the second mounting part, and the plurality of air outlets are opened on the two branch pipes.

9. The pressure-sensitive inflatable and deflated chest and hip support pad according to claim 2, characterized in that, Each airbag contact surface is provided with a flexible pad, and the surface of the flexible pad is provided with breathable micropores.

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