An inflatable body positioner with dynamically adjustable pressure distribution

Abstract

The utility model relates to an inflatable body position pad of dynamic pressure distribution adjustment, including pad body and set up on pad body air bag support module, air bag support module includes a plurality of matrix type interval distribution's sub air bag, sub air bag all are provided with monitoring part, still include controller and charge and discharge gas subassembly, charge and discharge gas subassembly includes the air channel frame built -in in pad body inside, and air channel frame has a plurality of connecting port for communicating with corresponding sub air bag, charge and discharge gas subassembly and monitoring group part all are electrically connected with controller. Through real -time monitoring the pressure and temperature of sub air bag, timely to pressure abnormal sub air bag charge and discharge gas processing, replace the support area of lying state patient, air channel frame passes through connecting port and each sub air bag one -to -one correspondence intercommunication, forms independent air flow path, can charge and discharge gas processing to multiple sub air bag simultaneously, the inflation amount of adjacent sub air bag increases synchronously when deflation, realizes the smooth transfer of support area, avoids the patient body displacement because of local pressure sudden drop.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an inflatable positioning pad with dynamically adjustable pressure distribution. Background Technology

[0002] A positioning pad is a medical device placed on the operating table in the operating room to effectively alleviate pressure sores caused by prolonged surgery. Different positioning pads are used depending on the surgical position and the patient's location. In the field of medical care, inflatable positioning pads have become a commonly used device to assist in patient positioning.

[0003] For example, Chinese patent CN209916537U discloses an inflatable surgical positioning pad. This pad uses an inflation mechanism to manually inflate an airbag, and utilizes a support frame and shock absorbers to provide fixed support for the patient's body. This design monitors the internal air pressure using a pressure sensor within the airbag. Medical staff must manually adjust the deflation and control valves based on experience to adjust the airbag height, thus adapting to different patient body shapes. However, using this positioning pad relies on manual inflation and deflation by medical staff and cannot achieve automatic adjustment based on real-time patient physiological data. Furthermore, it cannot change the support area of ​​the airbag for patients in a supine position, and prolonged pressure on a particular area of ​​the patient can easily lead to pressure sores. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an inflatable positioning pad with dynamically adjustable pressure distribution, 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] An inflatable positioning pad with dynamically adjustable pressure distribution is constructed, comprising a pad body and an airbag support module disposed on the pad body. The airbag support module includes a plurality of sub-airbags arranged in a matrix at intervals. Each sub-airbag is provided with a monitoring component for sensing internal air pressure and surface temperature. The pad also includes a controller and an inflation / deflation assembly. The inflation / deflation assembly includes an airway frame built into the pad body, the airway frame having a plurality of connection ports for communicating with the corresponding sub-airbags. The inflation / deflation assembly and the monitoring component are electrically connected to the controller. The pad can simultaneously inflate or deflate one or more sub-airbags according to the monitoring results of the monitoring components. During inflation / deflation, adjacent sub-airbags do not deflate simultaneously.

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

[0008] As an improvement to the inflatable positioning pad, the contact surfaces of the sub-airbags are all provided with flexible pads, and the surface of the flexible pads is provided with breathable micropores.

[0009] As an improvement to the inflatable positioning pad, the inflation / deflation assembly includes an air pump, which is connected to the airway frame. Each connection port of the airway frame is equipped with a solenoid valve, which is electrically connected to the controller.

[0010] As an improvement to the inflatable positioning pad, the airway frame is connected to an exhaust pipe, which is arranged in parallel with the airbag support module. The exhaust pipe is provided with multiple air outlets spaced apart, all of which face the gap between the airbags. The exhaust pipe is equipped with a control valve, which is electrically connected to the controller.

[0011] As an improvement to the inflatable positioning pad, the pad body is a one-piece structure.

[0012] As an improvement to the inflatable positioning pad, the pad body has a split structure, including a head pad and a body pad, which are used to support the human head and the human torso and legs, respectively; several airbags of the airbag support module are respectively disposed on the head pad and the body pad to form a head support airbag group and a torso support airbag group.

[0013] As an improvement to the inflatable positioning pad, the vent pipe has at least two, which are respectively installed on the head pad and the body pad.

[0014] As an improvement to the inflatable positioning pad, the head pad and the body pad are detachably connected.

[0015] As an improvement to the inflatable positioning pad, the controller includes a data processing unit, an inflation unit, and a deflation unit. The data processing unit receives detection data from the monitoring component and compares it with a preset threshold. The inflation unit and the deflation unit cooperate with the inflation / deflation assembly to inflate and deflate the target sub-airbag. When the pressure value of a sub-airbag exceeds a preset pressure limit and the temperature value exceeds a preset temperature limit, the controller controls the deflation of that sub-airbag, and the inflation volume of its adjacent sub-airbags increases synchronously during the deflation process.

[0016] The beneficial effects of this invention are as follows: by monitoring the pressure and temperature of each sub-airbag in real time, the sub-airbag with abnormal pressure can be inflated or deflated in a timely manner, and the support area for patients in a supine position can be replaced in a timely manner to avoid the patient's local skin from bearing excessive pressure for a long time; at the same time, combined with temperature monitoring, it is possible to detect the increase in skin temperature caused by pressure in a timely manner, intervene in advance, and effectively prevent pressure injuries such as pressure sores.

[0017] The coordinated arrangement of the airway frame and several sub-inflators allows for the simultaneous inflation and deflation of one or more sub-inflators based on monitoring results. The matrix-distributed sub-inflators can be independently adjusted to meet the varying pressure requirements of different parts of the patient's body. The design, which prevents adjacent sub-inflators from deflating simultaneously and ensures synchronized inflation during deflation, guarantees uniform pressure distribution throughout the body when changing support areas. This avoids sudden changes in localized pressure, providing patients with more even and stable support, thus improving comfort and stability. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the inflatable positioning pad provided by this utility model;

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the inflatable positioning pad provided by this utility model;

[0021] Figure 3 This is a partial three-dimensional structural diagram of the inflatable positioning pad provided by this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the inflation / deflation assembly of this utility model;

[0023] Figure 5 This is a cross-sectional view of the sub-airbag of this utility model;

[0024] Figure 6 This is a frame diagram of the inflation / deflation assembly of this utility model;

[0025] Figure 7 This is a utility model Figure 4 Enlarged view of point A;

[0026] Figure 8This is a three-dimensional structural diagram of the pad body of this utility model, which is a split structure.

[0027] Figure 9 This is a cross-sectional view of the pad body of this utility model, which has a split structure;

[0028] Figure 10 This is a utility model Figure 8 Enlarged view of point B.

[0029] In the diagram: 1. Airbag body; 11. Head pad; 12. Body pad; 13. Adapter; 2. Airbag support module; 21. Sub-airbag; 211. Contact surface; 22. Flexible pad; 23. Head support airbag assembly; 24. Body support airbag assembly; 3. Monitoring components; 31. Pressure sensor; 32. Temperature sensor; 4. Controller; 5. Inflation / depression assembly; 51. Air pump; 52. Airway frame; 53. Connection port; 54. Solenoid valve; 6. Exhaust pipe; 61. Air outlet; 7. Control valve. Detailed Implementation

[0030] 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.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an inflatable positioning pad with dynamically adjustable pressure distribution includes a pad body 1 and an airbag support module 2 disposed on the pad body 1. The airbag support module 2 includes several sub-airbags 21 arranged in a matrix. Each sub-airbag 21 is equipped with a monitoring component 3 for sensing internal air pressure and surface temperature. The pad also includes a controller 4 and an inflation / deflation assembly 5. The inflation / deflation assembly 5 includes an airway frame 52 built into the pad body 1. The airway frame 52 has several connection ports 53 for communicating with the corresponding sub-airbags 21. The inflation / deflation assembly 5 and the monitoring component are electrically connected to the controller 4. The pad can simultaneously inflate or deflate one or more sub-airbags 21 based on the monitoring results of the monitoring component 3. During inflation / deflation, adjacent sub-airbags 21 do not deflate simultaneously. Specifically, a monitoring component 3 is installed on the inner wall of each sub-airbag 21 to monitor the internal air pressure and surface temperature of the sub-airbag 21 in real time, and the monitoring data is transmitted to the controller 4 in real time. The controller 4 compares the received pressure and temperature values ​​with preset thresholds to determine whether inflation / deflation of the corresponding sub-bag 21 is necessary. When a sub-bag 21 in the airbag support module 2 needs inflation, the controller 4 activates the inflation / deflation assembly 5, inflating the target sub-bag 21 through the connection port 53 of the airway frame 52. The connection port 53 opens or closes according to the controller 4's instructions, precisely controlling the inflation volume of each sub-bag 21. When the pressure value of a sub-bag 21 exceeds the preset pressure limit and the temperature value exceeds the preset temperature limit, the controller 4 controls the corresponding connection port 53 of that sub-bag 21 to open and deflate. To avoid a sudden drop in local pressure, during the deflation of that sub-bag 21, the controller 4 simultaneously controls the connection ports 53 of its adjacent sub-bags 21 to open, increasing the inflation volume of the adjacent sub-bags 21 to maintain a smooth transition of overall pressure, thereby changing the support area for the patient. During any inflation / deflation process, ensure that adjacent sub-bags 21 do not deflate simultaneously to prevent a significant decrease in local support due to the simultaneous deflation of multiple adjacent sub-bags 21, which could affect the stability and comfort of the patient's position.

[0032] By monitoring the pressure and temperature of each sub-inflator 21 in real time, sub-inflators with abnormal pressure can be inflated or deflated promptly, allowing for timely replacement of the support area for the patient and preventing prolonged excessive pressure on local skin. Simultaneously, temperature monitoring can detect pressure-induced increases in skin temperature, enabling early intervention and effectively preventing pressure injuries such as pressure ulcers. The matrix-distributed sub-inflators 21 can be independently adjusted according to the different pressure requirements of different parts of the patient's body. The design of not deflating adjacent sub-inflators 21 simultaneously and increasing the inflation volume of adjacent sub-inflators 21 synchronously during deflation ensures uniform pressure distribution during the replacement of the support area, avoiding sudden changes in local pressure. This provides the patient with more even and stable support, improving comfort and stability. The controller 4 automatically receives and processes monitoring data and automatically controls the inflation / deflation component 5 to perform corresponding operations according to preset rules, achieving intelligent and automated pressure regulation, reducing manual operation by medical staff, and improving the efficiency and accuracy of nursing work.

[0033] The airway frame 52 serves as the main gas transmission trunk inside the cushion 1, and is connected to each sub-airbag 21 one by one through the connection port 53, forming an independent airflow path. When the controller 4 instructs the inflation / deflation assembly 5 to work, gas is quickly delivered through the airway frame 52 to the target sub-airbag 21 for inflation or gas is extracted from the sub-airbag 21 for deflation, realizing the synchronous or independent adjustment of the matrix airbag group.

[0034] Furthermore, controller 4 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 monitoring component 3, and issuing control commands to operate the inflation / deflation component 5 according to preset algorithms and logic.

[0035] In some embodiments of this application, such as Figure 5As shown, the monitoring component 3 includes a pressure sensor 31 and a temperature sensor 32. Each sub-airbag 21 has a contact surface 211 that adheres to the patient's skin. Both the pressure sensor 31 and the temperature sensor 32 are located on the inner wall of the sub-airbag 21, with the temperature sensor 32 corresponding to the contact surface 211. Specifically, the pressure sensor 31, installed on the inner wall of the sub-airbag 21, senses changes in internal air pressure in real time and transmits the pressure data to the controller 4. The temperature sensor 32, located on the inner wall of the sub-airbag 21 and corresponding to the contact surface 211, directly senses the temperature at the point of contact with the patient's skin and provides real-time feedback to the controller 4. The controller 4 simultaneously receives the pressure and temperature data and combines them to comprehensively determine the pressure status and skin health of the sub-airbag 21 area, such as whether the pressure has caused a local temperature increase. The pressure sensor 31 on the inner wall directly monitors the air pressure inside the sub-inflator 21, accurately reflecting the pressure level on the corresponding parts of the patient's body and providing a quantitative basis for pressure adjustment. The temperature sensor 32, located at the contact surface 211, can promptly detect abnormal temperatures in the local skin caused by pressure, such as temperature rise due to poor blood circulation, helping to predict the risk of pressure injury. Through the linkage analysis of pressure and temperature data, misjudgment based on a single parameter is avoided, improving the accuracy of the controller 4's assessment of the patient's position and ensuring that inflation and deflation adjustments are more in line with actual needs. Furthermore, the temperature sensor 32 is built into the inner wall of the sub-inflator 21, eliminating the need for direct contact with the patient's skin, thus ensuring monitoring accuracy while avoiding additional irritation or discomfort to the patient.

[0036] Furthermore, the temperature sensor 32 can be configured as a digital temperature sensor 32, a linear temperature sensor 32, or a flexible temperature sensor 32 as required; the pressure sensor 31 can be configured as a silicon pressure sensor 31 or a thin-film pressure sensor 31 as required.

[0037] In some embodiments of this application, the contact surface 211 of the sub-airbag 21 is provided with a flexible pad 22, and the surface of the flexible pad 22 is provided with breathable micropores. Specifically, the material of the flexible pad 22 can be silicone or the sponge. The flexible pad 22 directly adheres to the patient's skin, and the flexible pad 22 adapts to the contour of the skin surface by deformation, reducing the feeling of hard pressure and reducing the risk of skin friction damage; the breathable micropores allow air to flow between the contact surface 211 and the sub-airbag 21, forming a local air circulation, which promotes air circulation on the contact surface 211, accelerates sweat evaporation, avoids local heat and moisture accumulation, and improves the patient's comfort.

[0038] In some embodiments of this application, such as Figure 6As shown, the inflation / deflation assembly 5 includes an air pump 51, which is connected to the airway frame 52. Each connection port 53 of the airway frame 52 is equipped with a solenoid valve 54, which is electrically connected to the controller 4. Specifically, the air pump 51 serves as a power source, providing compressed air and extracting gas through the airway frame 52 to inflate and deflate the sub-airbags 21. The controller 4 controls the opening and closing of the solenoid valves 54 at the connection ports 53 via electrical signals. During inflation, the solenoid valves 54 open, and the gas output from the air pump 51 flows into the target sub-airbag 21 through the connection ports 53 of the airway frame 52. During deflation, the solenoid valves 54 open, and the gas inside the sub-airbag 21 is discharged through the connection ports 53 via the airway frame 52, or it can be extracted and discharged by the air pump 51. Each sub-airbag 21 corresponds to an independent solenoid valve 54, and the controller 4 can individually control the solenoid valves 54 of any sub-airbag 21 to achieve inflation / deflation operations on one or more sub-airbags 21. Through the linkage between the controller 4 and the solenoid valve 54, inflation and deflation can be automatically performed based on monitoring data without manual intervention, thus improving regulation efficiency. Each sub-airbag 21 is equipped with an independent solenoid valve 54, which can be adjusted differently according to the pressure requirements of different areas, realizing flexible control of the matrix sub-airbag group 21. The airway frame 52 serves as an internal airflow channel, which, combined with the power output of the air pump 51, ensures that gas is delivered quickly and stably to the target sub-airbag 21.

[0039] Furthermore, the air pump 51 can be an oil-free silent air pump, a miniature diaphragm air pump, or a small piston air pump, depending on the requirements.

[0040] In some embodiments of this application, such as Figure 7 As shown, the airway frame 52 is connected to an exhaust pipe 6, which is arranged parallel to the airbag support module 2. The exhaust pipe 6 has multiple air outlets 61 spaced apart, all facing the gaps between the airbags. The exhaust pipe 6 is equipped with a control valve 7, which is electrically connected to the controller 4. Specifically, when the controller 4 determines, based on data from the monitoring components 3 (pressure sensor 31, temperature sensor 32), that a specific sub-airbag 21 needs to be deflated, it simultaneously sends an electrical signal to the control valve 7 of the exhaust pipe 6 to open the valve. When the sub-airbag 21 deflates, the gas flows through the airway frame 52 into the exhaust pipe 6 and is directionally discharged into the gaps between the airbags through the spaced air outlets 61. The airflow discharged into the gaps can create localized airflow around the airbag support module 2, accelerating heat dissipation. The air outlets 61 facing the airbag gaps allow for direct airflow across the skin area between the airbags, enhancing air circulation on the contact surface 211, reducing local skin temperature, and minimizing the risk of pressure sores caused by heat and moisture accumulation.

[0041] In some embodiments of this application, the pad 1 is a one-piece structure. Specifically, the integrated design avoids the connection gaps or component displacement problems that may exist in a split structure, ensuring that the pad 1 maintains its shape stability during long-term use. Especially during frequent inflation and deflation, the matrix distribution of each sub-airbag 21 is less likely to shift, maintaining the accuracy of pressure regulation. Without the need to disassemble or assemble components, medical personnel can directly lay or move the pad 1 as a whole, reducing nursing operation steps and improving efficiency.

[0042] In some embodiments of this application, such as Figure 8 , Figure 9 and Figure 10 As shown, the cushion 1 has a split structure, including a head cushion 11 and a body cushion 12, which are used to support the human head and torso and legs, respectively. Several airbags of the airbag support module 2 are respectively set in the head cushion 11 and the body cushion 12, forming a head support airbag group 23 and a torso support airbag group 24. Specifically, the split cushion 1, through the independent design of the head cushion 11 and the body cushion 12, supports the weight of the human head, torso and legs respectively. The sub-airbags 21 in the head support airbag group 23 in the head cushion 11 and the torso support airbag group 24 in the body cushion 12 are each independently equipped with a monitoring component 3 to monitor the air pressure and temperature of the corresponding sub-airbags 21 in real time. The controller 4 controls the inflation and deflation of the two sets of airbags through the inflation and deflation components 5 according to the different pressure requirements of the head and torso / legs. For example, when the pressure of a sub-airbag 21 in the head support airbag group 23 is too high, only the target sub-airbag 21 in the head pad 11 is deflated, while the body support airbag group 24 in the body pad 12 maintains its original pressure state, thereby achieving differentiated pressure regulation for different body parts.

[0043] The head cushion 11 and body cushion 12 operate independently, providing personalized pressure support to address physiological differences such as the lighter weight of the head and sensitive areas versus the heavier weight of the torso / legs and their higher support requirements. For example, the head cushion group can use a lower preset pressure threshold to avoid compressing blood vessels in the head; the body cushion group can dynamically adjust the pressure according to the patient's body shape to distribute the weight of the torso. Furthermore, the head cushion 11 and body cushion 12 can be used alone or in combination, suitable for different nursing scenarios, such as bedridden patients requiring overall support, or sitting / lying patients requiring only body cushion 12 support, thus expanding the applicability of the device.

[0044] In some embodiments of this application, there are at least two exhaust pipes 6, respectively installed on the head pad 11 and the body pad 12. Specifically, the head pad 11 and body pad 12 of the split-type pad body 1 are each provided with an independent exhaust pipe 6, and each exhaust pipe 6 is connected to the airway frame 52 through a control valve 7. When it is necessary to deflate the sub-airbag 21 in the head pad 11 or the body pad 12, the controller 4 synchronously controls the control valve 7 of the exhaust pipe 6 in that area to open. The gas generated by the deflation flows into the corresponding exhaust pipe 6 through the airway frame 52 and is directionally discharged into the airbag gap in the area through its outlet 61. The exhaust pipes 6 of the head pad 11 and the body pad 12 work independently and do not interfere with each other, realizing zoned airflow management. The independent operation of the exhaust pipes 6 of the head pad 11 and the body pad 12 can handle the deflation needs of different body parts separately. For example, the exhaust pipe 6 of the head pad 11 only discharges the gas when the head airbag group is deflated, avoiding interference of the airflow from the body pad 12 on the head area, and ensuring the independence and accuracy of pressure regulation in each area.

[0045] In some embodiments of this application, the head cushion 11 and the body cushion 12 are detachably connected. Specifically, the head cushion 11 and the body cushion 12 are combined into a single cushion body through a detachable connection structure, such as a Velcro structure or a snap-on structure. The airway frame 52 is divided into two parts, which are respectively disposed inside the head cushion 11 and the body cushion 12. The two parts of the airway frame 52 are connected by an adapter 13, which enables airflow communication when connected. When disassembly is required, the physical connection of the adapter 13 is disconnected, and the airbag assembly, inflation / deflation assembly 5, and monitoring component 3 of the head cushion 11 and the body cushion 12 all work independently and can be used or replaced individually. When the cushion and the body cushion 12 are connected, they provide whole-body support as a unified cushion body, suitable for overall pressure adjustment for bedridden patients. After disassembly, the head cushion 11 or the body cushion 12 can be used alone, for example, the body cushion 12 can be used alone to support the torso for sitting or lying patients, or the head cushion 11 can be used alone in conjunction with other nursing appliances to meet diverse scenario needs.

[0046] In some embodiments of this application, the controller 4 includes a data processing unit, an inflation unit, and an deflation unit. The data processing unit is used to receive the detection data from the monitoring component 3 and compare it with a preset threshold. The inflation unit and the deflation unit cooperate with the inflation / deflation assembly 5 to inflate and deflate the target sub-airbag 21. When the pressure value of a sub-airbag 21 exceeds the preset pressure limit and the temperature value exceeds the preset temperature limit, the controller 4 controls the sub-airbag 21 to deflate, and during the deflation process, the inflation volume of its adjacent sub-airbags 21 increases synchronously.

[0047] Specifically, the data processing unit receives real-time data on the internal air pressure and surface temperature of the sub-inflator 21 transmitted by the monitoring component 3 and compares it with preset thresholds. When the pressure value of a single sub-inflator 21 exceeds the preset pressure limit or the temperature value exceeds the preset temperature limit, only an alarm is triggered, but no inflation or deflation action is performed. When the pressure value of the same sub-inflator 21 exceeds the pressure limit and the temperature value exceeds the temperature limit simultaneously, it is determined that there is a risk of pressure injury in that area, and the data processing unit sends instructions to the inflation and deflation units. The deflation unit controls the solenoid valve 54 corresponding to the target sub-inflator 21 to open, releasing gas through the airway frame 52 to reduce local pressure. The inflation unit simultaneously controls the solenoid valves 54 of the adjacent sub-inflators 21 of the target sub-inflator 21 to open, inflating the adjacent sub-inflators 21 through the air pump 51 to increase their support force, achieving smooth transfer of the support area and preventing the patient's body from shifting due to a sudden drop in local pressure. Furthermore, during any inflation or deflation process, it is ensured that adjacent sub-inflators 21 do not deflate simultaneously to avoid a sudden drop in local support force.

[0048] By using dual thresholds for pressure and temperature data, both must exceed the threshold simultaneously to avoid misjudgment based on a single parameter, such as false positives caused by fluctuations in ambient temperature, thus improving the accuracy of pressure ulcer risk identification. The matrix-style sub-airbags 21 are independently adjustable, allowing for precise pressure relief in areas of concentrated pressure, such as the sacrum and coccyx, while simultaneously distributing pressure evenly to adjacent healthy skin areas, reducing the duration of continuous pressure on a single site.

[0049] 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. An inflatable positioning pad with dynamically adjustable pressure distribution, characterized in that, include: The system comprises a cushion body and an airbag support module disposed on the cushion body. The airbag support module includes a plurality of sub-airbags arranged in a matrix at intervals. Each sub-airbag is equipped with a monitoring component for sensing internal air pressure and surface temperature. The system also includes a controller and an inflation / deflation assembly. The inflation / deflation assembly includes an air passage frame built into the cushion body. The air passage frame has a plurality of connection ports for communicating with the corresponding sub-airbags. The inflation / deflation assembly and the monitoring component are both electrically connected to the controller. The system can simultaneously inflate or deflate one or more sub-airbags according to the monitoring results of the monitoring component. During the inflation / deflation process, adjacent sub-airbags do not deflate simultaneously.

2. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 1, characterized in that, The monitoring components include a pressure sensor and a temperature sensor. Each sub-airbag has a contact surface that fits against the patient's skin. The pressure sensor and the temperature sensor are both disposed on the inner wall of the sub-airbag, and the temperature sensor is positioned corresponding to the contact surface.

3. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 2, characterized in that, The contact surfaces of the sub-airbags are all provided with flexible pads, and the surface of the flexible pads is provided with breathable micropores.

4. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 1, characterized in that, The inflation / deflation assembly includes an air pump, which is connected to the air passage frame. Each connection port of the air passage frame is equipped with a solenoid valve, which is electrically connected to the controller.

5. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 4, characterized in that, The airway frame is connected to an exhaust pipe, which is arranged in parallel with the airbag support module. The exhaust pipe has multiple air outlets spaced apart, all of which face the gap between the airbags. The exhaust pipe is equipped with a control valve, which is electrically connected to the controller.

6. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 5, characterized in that, The pad is a one-piece structure.

7. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 5, characterized in that, The pad is a split structure, including a head pad and a body pad, which are used to support the human head and the human torso and legs, respectively; several sub-airbags of the airbag support module are respectively set in the head pad and the body pad to form a head support airbag group and a torso support airbag group.

8. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 7, characterized in that, The exhaust pipe has at least two parts, which are respectively installed on the head pad and the body pad.

9. The inflatable positioning pad with dynamically adjustable pressure distribution according to claim 7, characterized in that, The head pad and the body pad are detachably connected.

10. The inflatable positioning pad with dynamically adjustable pressure distribution according to any one of claims 1-9, characterized in that, The controller includes a data processing unit, an inflation unit, and a deflation unit. The data processing unit receives detection data from the monitoring component and compares it with a preset threshold. The inflation unit and the deflation unit cooperate with the inflation / deflation assembly to inflate and deflate the target sub-airbag. When the pressure value of a sub-airbag exceeds a preset pressure limit and the temperature value exceeds a preset temperature limit, the controller controls the deflation of the sub-airbag, and the inflation volume of adjacent sub-airbags increases synchronously during the deflation process.

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