A pressure beam splitter position adjustment device and system
By setting up an independent airway channel and a multi-sensor feedback air pressure splitting module in the surgical positioning device, the problem of the existing equipment's inability to accurately adjust the pressure has been solved, realizing refined positioning management and improving surgical safety and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PEOPLES HOSPITAL
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-30
Smart Images

Figure CN224421422U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of surgical nursing equipment technology, and in particular to a pneumatic beam positioning adjustment device and system. Background Technology
[0002] Current surgical positioning devices generally employ a multi-balloon structure to provide support for patients during surgery or postoperative care. However, traditional devices have the following main drawbacks: the airway is not zoned, with multiple balloons sharing one or more tracheas, making it difficult to achieve precise pressure adjustment for different areas; and they have poor adaptability, making it difficult to achieve targeted pressure adjustment under different surgical positions (such as lateral decubitus, prone, L-position, lithotomy position, etc.).
[0003] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0004] The main objective of this application is to provide a pneumatic beam body position adjustment device and system, which aims to solve the problem that existing surgical body position adjustment devices use a centralized air source module and a series of airbags, making it difficult to accurately adjust the pressure of the user's body part.
[0005] The first aspect of this application provides a pressure beam splitting body position adjustment device, which includes a gas source module, a pressure beam splitting adjustment module, a multi-sensor input module, and a central control unit. The gas source module is connected to the pressure beam splitting adjustment module, the pressure beam splitting adjustment module is connected to the multi-sensor input module, and the multi-sensor input module is connected to the central control unit.
[0006] The air pressure beam adjustment module includes multiple air passages and multiple airbags. The multiple air passages are connected one-to-one with the multiple airbags, and each air passage is equipped with a solenoid valve. The solenoid valve is used to control the opening and closing of the corresponding air passage, and the airbag is used to adjust the user's body position.
[0007] The multi-sensor input module includes multiple sensor components, and each of the multiple sensor components is connected to a corresponding airbag.
[0008] The multi-sensor input module is used to provide feedback data to the central control unit; the central control unit is used to process the feedback data and adjust each of the solenoid valves to adjust the user's body position.
[0009] Optionally, in one embodiment of this application, each of the sensor components includes a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor are respectively connected to the corresponding airbag and the central control unit;
[0010] The pressure sensor is used to monitor the internal pressure of the airbag, and the temperature sensor is used to monitor the gas temperature inside the airbag.
[0011] Optionally, in one embodiment of this application, the sensor assembly further includes a humidity sensor, which is connected to the corresponding airbag and the central control unit respectively, and is used to monitor the ambient humidity inside the airbag.
[0012] Optionally, in one embodiment of this application, the chip model of the central control unit is STM32F407, ESP32, or Xilinx Spartan.
[0013] Optionally, in one embodiment of this application, each of the gas passages is further provided with a sensor interface, which is connected to the corresponding sensor component.
[0014] Optionally, in one embodiment of this application, the air pressure beam splitting body position adjustment device further includes a communication module, which is connected to the central control unit and is used to interact with external systems.
[0015] Optionally, in one embodiment of this application, the air pressure beam splitter position adjustment device further includes a temperature adjustment module, the air source module is connected to the temperature adjustment module, and the temperature adjustment module is used to heat the gas output by the air source module.
[0016] Optionally, in one embodiment of this application, the air source module includes a high-pressure micro air pump.
[0017] Optionally, in one embodiment of this application, the airbag is provided with at least three airbags, the three airbags being used to support the user's neck.
[0018] A second aspect of this application also provides a pneumatic beam splitting adjustment system, wherein the pneumatic beam splitting adjustment system includes a pneumatic beam splitting body position adjustment device as described in any of the above embodiments.
[0019] Beneficial effects: This application provides a pneumatic beam splitting body position adjustment device and system. Each airbag in the pneumatic beam splitting module has an independent air passage, and each air passage is equipped with a solenoid valve. With the help of corresponding sensor components, feedback is provided to realize independent adjustment of multi-channel airbag zones. This application can achieve the purpose of refined body position management, improve surgical safety and user comfort. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of a preferred embodiment of the air pressure beam splitter position adjustment device of this application;
[0022] Figure 2 This is a schematic diagram of the structure for adjusting the neck position of a user in a preferred embodiment of the air pressure beam body position adjustment device of this application.
[0023] Explanation of reference numerals in the attached figures:
[0024] 10. Air source module; 11. High-pressure micro air pump; 20. Air pressure beam adjustment module; 21. Solenoid valve; 22. Airbag; 30. Multi-sensor input module; 31. Sensor assembly; 40. Central control unit.
[0025] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0026] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of this application and not all possible implementations. Based on the embodiments in this application, those skilled in the art can obtain other embodiments without creative effort, and these embodiments are also within the protection scope of this application.
[0027] In related technologies, feedback mechanisms are often singular or absent, with most devices only having simple timing control or pressure limiting devices, failing to achieve closed-loop body position adjustment; the adjustment is unstable, with delayed and uncontrollable response due to interconnection interference, making it easy to cause imbalance when changing body position during surgery. Currently, most pneumatic controllers used in medical support systems such as operating tables and rehabilitation beds on the market adopt a centralized air source + series airbag structure, that is, one main air pump controls multiple airbags, and inflation / deflation is performed through simple solenoid valves (single-switch type); airbag pressure adjustment mainly relies on timing control or pressure limiting devices, lacking sensor feedback.
[0028] Specifically, the related technologies have slow response speeds, with the time from sending a command to the change in airbag pressure exceeding 300ms; they lack a closed-loop adjustment mechanism and exhibit significant mutual interference between airbags; crosstalk exists, where the inflation or deflation of one airbag can affect other airbags; the channels are not independent and feedback is coupled; accuracy is low, with air pressure fluctuations ranging from ±1.2kPa, making high-precision support control impossible; support force varies greatly, with severe pressure distortion in airbags at distant locations; the transmission path is long and the flow resistance is uneven; and body position adaptability is poor, unable to achieve precise support in challenging positions such as the V-shape and prone position, and lacks a preset body position parameter library and pressure adjustment curves.
[0029] First, the application scenarios of the embodiments of this application will be described. The pneumatic beam body position adjustment device of this application embodiment is a headrest. By adjusting the inflation and deflation of gas in multiple airbags in the device, the body position of the head and neck can be adjusted. The pneumatic beam body position adjustment device of this application embodiment can also be an operating table or a nursing bed. By adjusting the inflation and deflation of gas in multiple airbags in the device, the body position of the user's head, waist, back, and legs can be adjusted.
[0030] To address the issue that surgical positioning devices using centralized air source modules and serially connected airbags make it difficult to precisely adjust the pressure at the user's desired location, this application addresses this problem by having each airbag in the air pressure splitting module have an independent air path, with each air path equipped with a solenoid valve and corresponding sensor components for feedback. This enables independent adjustment of multiple airbag zones, achieving refined positioning management and improving surgical safety and user comfort.
[0031] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0032] Figure 1 The numbers in square brackets indicate the components contained in the part, such as 10(11) indicating that the air source module 10 contains a high-pressure micro air pump 11.
[0033] like Figure 1 As shown in the figure, this application provides a pressure beam splitting body position adjustment device, which includes a gas source module 10, a pressure beam splitting adjustment module 20, a multi-sensor input module 30, and a central control unit 40. The gas source module 10 is connected to the pressure beam splitting adjustment module 20, the pressure beam splitting adjustment module 20 is connected to the multi-sensor input module 30, and the multi-sensor input module 30 is connected to the central control unit 40.
[0034] The air pressure beam adjustment module 20 includes multiple air passages and multiple airbags 22. The multiple air passages are connected to the multiple airbags 22 in a one-to-one correspondence, and each air passage is provided with a corresponding solenoid valve 21. The solenoid valve 21 is used to control the opening and closing of the corresponding air passage, and the airbag 22 is used to adjust the user's body position.
[0035] The multi-sensor input module 30 includes multiple sensor components 31, and the multiple sensor components 31 are connected to the multiple airbags 22 in a one-to-one correspondence.
[0036] The multi-sensor input module 30 is used to provide feedback data to the central control unit 40; the central control unit 40 is used to process the feedback data and adjust each of the solenoid valves 21 to adjust the user's body position.
[0037] Understandably, this application divides the air supply path into bundles, giving each of the 22 airbag modules a completely independent air pressure control and feedback channel. Coupled with a closed-loop feedback mechanism, this enables personalized and precise support adjustment for different patient positions. This application effectively improves surgical patient comfort and positional stability, and is suitable for multi-disciplinary and multi-positional procedures involving the cervical spine, thoracic and abdominal surgery, urology, obstetrics and gynecology, and spine.
[0038] This application supports 8 / 16 / 32 / 64 independent air pressure adjustments; the adjustment accuracy is ±0.3kPa, superior to the traditional ±1.2kPa; single-channel response time ≤80ms, closed-loop feedback cycle ≤100ms; pressure control adopts PWM adjustment of a miniature solenoid valve 21 (0.1Hz~100Hz); data refresh rate ≥10 times / second (real-time pressure adjustment); communication mechanism supports RS485, Bluetooth BLE5.0, and Wi-Fi dual backup modes; pressure sensor accuracy is ±0.1kPa, and temperature and humidity sensor accuracy is ±0.5℃ / ±3%RH. It is suitable for various body positions such as supine, lateral, prone, chevron, lithotomy, and head-neck hyperextension. This application supports preset pressure distribution templates (matrix format) for different surgical procedures and can dynamically adjust the pressure to achieve precise position restoration, improved comfort, and intraoperative safety.
[0039] In one embodiment of this application, the chip model of the central control unit is STM32F407, ESP32 or Xilinx Spartan.
[0040] Specifically, the central control unit 40 (MCU or FPGA) uses a high-performance chip (such as STM32F407, ESP32, or Xilinx Spartan series) with a main frequency ≥72MHz to ensure real-time data processing capabilities. The central control unit 40 is used for command reception, receiving position adjustment commands from the host computer (such as the operating room control terminal) via a communication module (such as RS485, BLE); data fusion, processing pressure, temperature, and humidity data fed back from the multi-sensor input module 30 in real time; control output, generating PWM signals to drive the solenoid valve 21 in the air pressure beam adjustment module 20 to achieve precise air pressure adjustment; and algorithm execution, running a closed-loop control algorithm (such as PID+AI assisted), combined with air pressure protection logic (such as overpressure / underpressure alarm) and heat preservation logic (such as temperature compensation).
[0041] In this application, the gas control path is a multi-channel pressure splitting regulation structure, and the actuator adopts a strategy of solenoid valve 21 + multi-channel sub-control + modularization. This application realizes a unique structural control scheme of "physical splitting of pressure path + logical splitting of execution signal" by constructing a pressure splitting regulation controller structure and scheduling multiple solenoid valve 21 control units based on a central controller.
[0042] In this embodiment, each airbag 22 is controlled by an independent air pressure channel, which is completely physically isolated to avoid airflow coupling; each channel is equipped with a micro solenoid valve 21 and a feedback adjustment module, which supports parallel and independent adjustment; the channel supports a hot-swappable structure, which is convenient for expansion, maintenance and upgrade; the channel allocation mode (matrix self-mapping) can be quickly adjusted according to the surgical body shape layout.
[0043] Specifically, the air pressure splitting adjustment module 20 is used to realize the physical splitting and independent control of the air path. The air pressure splitting adjustment module 20 includes multiple air path channels and multiple airbags 22. Each air path channel is an independent channel, and each channel includes a solenoid valve 21 and a sensor feedback interface. The air paths between channels are physically isolated and do not interfere with each other.
[0044] In one embodiment of this application, each of the sensor components 31 includes a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor are respectively connected to the corresponding airbag 22 and the central control unit 40; the pressure sensor is used to monitor the internal pressure of the airbag 22, and the temperature sensor is used to monitor the gas temperature inside the airbag 22.
[0045] In one embodiment of this application, the air pressure adjustment range of the solenoid valve 21 is 0-100kPa, the response time of the solenoid valve 21 is ≤10ms, and the PWM adjustment frequency range of the solenoid valve 21 is 10Hz-1kHz.
[0046] Specifically, the parameters are configured as follows: air pressure range: adjustable from 0 to 100 kPa to meet the support requirements of different body positions; solenoid valve 21 response time ≤ 10 ms, PWM adjustment frequency range of 10 Hz to 1 kHz to ensure fast response and fine adjustment; good channel expandability, supporting 8 / 16 / 32 / 64-channel modular architecture to adapt to different sizes of airbag 22 arrays.
[0047] In one embodiment of this application, the sensor assembly 31 further includes a humidity sensor, which is connected to the corresponding airbag 22 and the central control unit 40 respectively, and is used to monitor the ambient humidity inside the airbag 22.
[0048] In one embodiment of this application, the pressure sensor has an accuracy of ±0.1 kPa, the temperature sensor has a temperature monitoring range of 15-45°C, and the humidity sensor has a humidity monitoring range of 0-100% RH.
[0049] Specifically, sensor assembly 31 provides real-time environmental and status feedback. The sensors are configured as follows: a pressure sensor with an accuracy of ±0.1 kPa monitors the internal pressure of the airbag 22; a temperature sensor with a range of 15–45°C and an accuracy of ±0.3°C monitors the gas temperature; and a humidity sensor with a range of 0–100% RH and an accuracy of ±3% RH monitors the ambient humidity. In this application, sensor assembly 31 in each air passage converts analog signals into digital signals via an ADC module, which are then fed into the central control unit 40. The sampling frequency is ≥10Hz, supporting redundant sampling and outlier filtering to ensure data reliability.
[0050] In one embodiment of this application, each of the gas passages is further provided with a sensor interface, which is connected to the corresponding sensor component 31.
[0051] In one embodiment of this application, the air pressure beam position adjustment device further includes a temperature adjustment module. The air source module 10 is connected to the temperature adjustment module, and the temperature adjustment module is used to heat the gas output by the air source module 10.
[0052] In one embodiment of this application, the air source module 10 includes a high-pressure micro air pump 11.
[0053] Specifically, the gas source module 10 and the temperature regulation module are used to provide a stable gas source and control the gas temperature. A high-pressure micro air pump 11 serves as the main gas source, with a maximum output ≥100kPa and a flow rate ≥8L / min, ensuring sufficient gas supply. The temperature regulation module heats the gas to 32~38℃ and automatically replenishes the temperature based on sensor feedback using a temperature control algorithm (such as PID). The gas path in this application is as follows: air pump output - temperature control module heating - bundled gas distribution - solenoid valve 21 control - airbag 22 inflation.
[0054] In one embodiment of this application, the airbag 22 is provided with at least three, and the three airbags 22 are used to support the user's neck.
[0055] Specifically, such as Figure 2 As shown, there are three airbags 22, two of which are used to support the sides of the user's neck and one airbag is used to support the lower side of the user's neck. The high-pressure micro air pump 11 inflates the three air passages, and the central control unit 40 controls the opening and closing of the three solenoid valves 21 to adjust the user's neck support position.
[0056] In one embodiment of this application, the air pressure beam splitting body position adjustment device further includes a communication module, which is connected to the central control unit and is used to interact with external systems.
[0057] The heating gas output from the gas source module 10 of this application is distributed to the independent channels of the air pressure splitting adjustment module 20 through a split air path. The solenoid valve 21 of each channel controls the gas flow to the corresponding airbag 22, achieving independent inflation / deflation. The sensor module feeds back pressure, temperature, and humidity data to the central control unit 40. Based on the feedback data and instructions from the host computer, the central control unit 40 adjusts the opening of the solenoid valve 21 via a PWM signal. The communication module uploads the device status (such as air pressure, temperature, and fault codes) to the host computer or cloud platform. The closed-loop regulation consists of sensor data – central control unit 40 algorithm processing – solenoid valve 21 action – airbag 22 pressure adjustment – sensor data update, forming a real-time feedback loop. This application dynamically adjusts the air pressure of each channel through preset body position modes (such as side-lying or prone) or host computer instructions to achieve personalized support.
[0058] In the embodiments of this application, the traditional solution adopts "discrete adjustment of single airbag node", while the present invention achieves physical and logical splitting of the air path through "air pressure splitting + modular electromagnetic valve array", eliminating interconnection interference. Through modular channel expansion and multi-sensor fusion, it can flexibly adapt to different surgical positions (such as the A-frame position and lithotomy position) and achieve dynamic optimization of pressure distribution.
[0059] Taking spinal surgery as an example, the preoperative preparation is as follows: Select the "prone position" mode through the host computer, and the system will automatically configure the pressure distribution of 8 airbags; Intraoperative adjustment: When the abdominal pressure of the patient decreases due to anesthesia, the sensor triggers the MCU to start the PID algorithm, and adjust the corresponding airbag pressure to the safe threshold within 20ms; Postoperative care: The temperature control module continuously outputs 35℃ gas, combined with humidity monitoring to prevent pressure sores from forming.
[0060] Based on the above embodiments, this application also provides a pneumatic beam splitting adjustment system, wherein the pneumatic beam splitting adjustment system includes a pneumatic beam splitting body position adjustment device as described in any one of the above solutions.
[0061] The air pressure beam splitting adjustment system provided in this application has all the above-mentioned beneficial effects because it is equipped with the air pressure beam splitting body position adjustment device described in any of the above technical solutions, which will not be repeated here.
[0062] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0063] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0065] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0066] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A pneumatic beam splitting body position adjustment device, characterized by, The air pressure beam splitting body position adjustment device includes an air source module, an air pressure beam splitting adjustment module, a multi-sensor input module, and a central control unit. The air source module is connected to the air pressure beam splitting adjustment module, the air pressure beam splitting adjustment module is connected to the multi-sensor input module, and the multi-sensor input module is connected to the central control unit. The air pressure beam adjustment module includes multiple air passages and multiple airbags. The multiple air passages are connected one-to-one with the multiple airbags, and each air passage is equipped with a solenoid valve. The solenoid valve is used to control the opening and closing of the corresponding air passage, and the airbag is used to adjust the user's body position. The multi-sensor input module includes multiple sensor components, and each of the multiple sensor components is connected to a corresponding airbag. The multi-sensor input module is used to provide feedback data to the central control unit; the central control unit is used to process the feedback data and adjust each of the solenoid valves to adjust the user's body position.
2. The pneumatic beam-splitting body positioner of claim 1, wherein, Each of the sensor components includes a pressure sensor and a temperature sensor, the pressure sensor and the temperature sensor being respectively connected to the corresponding airbag and the central control unit; The pressure sensor is used to monitor the internal pressure of the airbag, and the temperature sensor is used to monitor the gas temperature inside the airbag.
3. The pneumatic beam-splitting body positioner of claim 2, wherein, The sensor assembly also includes a humidity sensor, which is connected to the corresponding airbag and the central control unit respectively, and is used to monitor the ambient humidity inside the airbag.
4. The pneumatic beam splitting body positioner of claim 1, wherein, The central control unit uses an STM32F407, ESP32, or Xilinx Spartan chip.
5. The pneumatic beam splitter body positioner of claim 1, wherein, Each of the gas passages is also provided with a sensor interface, which is connected to the corresponding sensor component.
6. The pneumatic beam splitter body positioner of claim 1, wherein, The air pressure beam splitter position adjustment device also includes a communication module, which is connected to the central control unit and is used to interact with external systems.
7. The pneumatic beam splitter body positioner of claim 1, wherein, The air pressure beam splitter position adjustment device also includes a temperature adjustment module. The air source module is connected to the temperature adjustment module, and the temperature adjustment module is used to heat the gas output by the air source module.
8. The pneumatic beam splitting body positioner of claim 1, wherein, The gas source module includes a high-pressure micro air pump.
9. The pneumatic beam-splitting body positioner of any of claims 1-8, wherein, The airbag is provided with at least three airbags, which are used to support the user's neck.
10. A pneumatic beam splitting conditioning system, characterized by, The air pressure beam splitting adjustment system includes an air pressure beam splitting body position adjustment device as described in any one of claims 1 to 9.