Hardware architecture of breathing machine

Abstract

The utility model discloses a respirator hardware architecture, which relates to the field of respirators and comprises a power management module, a display screen module, a main controller module and a turbine driving module. Wherein the main controller module is sequentially connected with the power supply management module, the display screen module and the turbine driving module. According to the utility model, the respirator is modularly designed, so that the respirator is easy to disassemble and convenient to replace during maintenance; meanwhile, the same module can be used among different products; in this way, later maintenance is facilitated, and product design iteration is also facilitated; according to the invention, the maintenance cost can be obviously reduced, only a fault module needs to be replaced, and all modules do not need to be replaced; and the same module can be used for different products, so that the research and development cost is reduced, and the research and development time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of ventilators, and more specifically, to a ventilator hardware architecture. Background Technology

[0002] A ventilator is a medical device used to support or replace a patient's spontaneous breathing, typically used in surgery, intensive care, and emergency situations. By regulating the flow and pressure of gas, a ventilator helps the patient inhale oxygen and expel carbon dioxide, thereby maintaining or improving the patient's respiratory function. The hardware architecture of a ventilator includes a power supply, display screen, and controller.

[0003] Most ventilators on the market today use integrated circuit (IC) designs, which significantly improve the integration and reliability of the equipment. ICs integrate numerous electronic components onto a single circuit board, simplifying the internal structure of the ventilator and enhancing its miniaturization and efficiency. However, this design also presents maintenance challenges. Due to the high integration of ICs, individual component failures are difficult to detect and replace individually, often requiring the replacement of the entire circuit board during repairs. While this simplifies the repair process and reduces diagnostic and repair time, it also increases maintenance costs.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a ventilator hardware architecture to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A ventilator hardware architecture includes a power management module, a display module, a main controller module, and a turbine drive module; wherein the main controller module is connected to the power management module, the display module, and the turbine drive module in sequence.

[0008] Furthermore, in order to power the entire machine, the power management module includes a power management board, which is connected in sequence to a switch, a fan, a main battery, a secondary battery, and an AC-DC power supply. The end of the AC-DC power supply furthest from the power management board is connected in sequence to a filter and an AC power supply, and the power management board is connected to the main controller module.

[0009] Furthermore, to enable independent communication between the touch screen, LCD display, control buttons, and knobs, the display module includes a screen MCU board, an LVDC interface, a backlight interface, and a touch screen interface. The screen MCU board is connected in sequence to the rotary encoder board, power indicator light, and alarm indicator light.

[0010] Furthermore, to realize the main functions of the ventilator, the main controller module includes a main control MCU module, a DC-DC power conversion module, a safety MCU, and an interactive CPU module. The main control MCU module is connected to the DC-DC power conversion module, the safety MCU, the interactive CPU module, and the turbine drive module in sequence, and the safety MCU is connected to the interactive CPU module. The interactive CPU module is connected to the screen MCU board, the LVDC interface, the backlight interface, the touch screen interface, and the power management board in sequence, and the DC-DC power conversion module is connected to the power management board.

[0011] Furthermore, to support various turbines, the turbine drive module includes a motor driver, a motor drive board, a turbine, a braking resistor, and an integrated drive and control turbine. The motor driver is connected in sequence to the main control MCU module, the turbine, and the integrated drive and control turbine. The motor drive board is connected in sequence to the main control MCU module, the turbine, and the braking resistor, and the turbine is connected to the main control MCU module. The integrated drive and control turbine is connected to the main control MCU module.

[0012] The beneficial effects of this utility model are as follows:

[0013] (1) This utility model adopts a modular design for the ventilator, which makes disassembly simple and replacement convenient during maintenance. At the same time, the same modules can be used interchangeably between different products, such as power management modules and turbine drive modules. This not only facilitates later maintenance, but also facilitates product design iteration.

[0014] (2) This invention can significantly reduce maintenance costs, requiring only the replacement of the faulty module instead of all modules. It enhances the substitutability of modules, allowing the same module to be used in different products, thereby reducing R&D costs and shortening R&D time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, 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.

[0016] Figure 1 This is a schematic block diagram of the power management module and display module in a ventilator hardware architecture according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic block diagram of the main controller module in a ventilator hardware architecture according to an embodiment of the present utility model;

[0018] Figure 3This is a schematic block diagram of a turbine drive module in a ventilator hardware architecture according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the internal workings of the power management board in a ventilator hardware architecture according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the screen MCU board in a ventilator hardware architecture according to an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the internal working principle of the main control MCU module in a ventilator hardware architecture according to an embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the internal workings of a safety MCU in a ventilator hardware architecture according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the internal working principle of the interactive CPU module in a ventilator hardware architecture according to an embodiment of the present invention.

[0024] In the picture:

[0025] 1. Power Management Module; 101. Power Management Board; 102. Switch; 103. Fan; 104. Main Battery; 105. Secondary Battery; 106. AC-DC Power Supply; 107. Filter; 108. AC Power Supply; 2. Display Module; 201. Screen MCU Board; 202. LVDC Interface; 203. Backlight Interface; 204. Touch Screen Interface; 205. Rotary Encoder Board; 206. Power Indicator; 207. Alarm Indicator; 3. Main Controller Module; 301. Main Control MCU Module; 302. DC-DC Power Conversion Module; 303. Safety MCU; 304. Interactive CPU Module; 4. Turbine Drive Module; 401. Motor Driver; 402. Motor Drive Board; 403. Turbine; 404. Braking Resistor; 405. Integrated Drive and Control Turbine. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of this utility model, a ventilator hardware architecture is provided. A modular design method is adopted, decomposing the ventilator hardware into four major modules. Each module can independently complete its own function. Different modules can have multiple versions, and the interfaces between different versions are compatible. This allows for the design of new products by simply replacing some modules, without having to design new circuit modules from scratch.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-8 As shown, where, Figure 1 The lines A, B, C, D, E, and F in the diagram are... Figure 2 The lines A, B, C, D, E, and F in the diagram are connected accordingly; Figure 2 The lines G, H, I, J, K and Figure 3 The lines G, H, I, J, and K in the diagram are connected accordingly. According to the hardware architecture of the ventilator in this embodiment of the present invention, there is a power management module 1, a display module 2, a main controller module 3, and a turbine drive module 4; wherein, the main controller module 3 is sequentially connected to the power management module 1, the display module 2, and the turbine drive module 4.

[0029] By employing the above-described solution, this invention achieves a modular design for the ventilator, simplifying disassembly and replacement during maintenance. Furthermore, the same modules can be used interchangeably across different products, such as the power management module 1 and the turbine drive module 4. This facilitates both subsequent maintenance and product design iteration.

[0030] In one embodiment, the power management module 1 includes a power management board 101, which is connected in sequence to a switch 102, a fan 103, a main battery 104, a secondary battery 105, and an AC-DC power supply 106. The end of the AC-DC power supply 106 away from the power management board 101 is connected in sequence to a filter 107 and an AC power supply 108 (220V grid). The power management board 101 is also connected to the main controller module 3, thereby providing power to the entire machine. It can flexibly select the power supply mode, provide multiple voltage output options, and realize automatic battery management.

[0031] like Figure 4 As shown, in the power management board 101, ORing is selected as diode selection, and Boost is selected as boost conversion.

[0032] Flexible power supply options:

[0033] 1) AC-DC power supply: Wide voltage range of 12-36V is acceptable.

[0034] 2) Battery powered, one or more batteries can be selected for power supply.

[0035] Multiple voltage output options:

[0036] 1) System power supply, 12V or 24V optional.

[0037] 2) Power supply for the display screen: 12V, 5V, or 3.3V are optional.

[0038] 3) Turbine power supply, which can provide stable high current power supply, 12-48V optional.

[0039] Achieve automatic battery management:

[0040] 1) Automatically selects the power supply mode upon power-up, with priority: AC-DC power supply > battery.

[0041] 2) If the battery is used for power supply, the battery with the higher charge level should be selected first.

[0042] 3) When AC-DC power is available, it will automatically charge the battery.

[0043] In one embodiment, the display module 2 includes a screen MCU board 201, an LVDC interface 202 (a DC voltage interface), a backlight interface 203, and a touch screen interface 204. The screen MCU board 201 is connected in sequence to a rotary encoder board 205, a power indicator light 206, and an alarm indicator light 207, so that the touch screen, LCD display, control buttons, and knobs can communicate independently, ensuring the stability of the interaction.

[0044] Touch:

[0045] 1) Supports multiple touch interfaces, including USB and IIC.

[0046] 2) Supports multiple touch screen sizes.

[0047] LCD display:

[0048] 1) Supports multiple LCD display interfaces, such as HDMI, LVDS, and VGA.

[0049] 2) Supports multiple LCD display sizes.

[0050] Independent buttons and knobs:

[0051] 1) Independent buttons and knobs ensure that the system can still interact normally when there is a touch abnormality.

[0052] 2) The system uses an independent MCU to control the buttons and knobs, resulting in high system stability and resistance to interference.

[0053] In one embodiment, the main controller module 3 includes a main control MCU module 301, a DC-DC power conversion module 302, a safety MCU 303, and an interactive CPU module 304. The main control MCU module 301 is sequentially connected to the DC-DC power conversion module 302, the safety MCU 303, the interactive CPU module 304, and the turbine drive module 4. The safety MCU 303 is connected to the interactive CPU module 304. The interactive CPU module 304 is sequentially connected to the screen MCU board 201, the LVDC interface 202, the backlight interface 203, the touchscreen interface 204, and the power management board 101. The DC-DC power conversion module 302 is connected to the power management board 101, thereby realizing the main functions of the ventilator. Figure 6 As shown, the EEPROM in the main control MCU module 301 is an electrically erasable programmable read-only memory.

[0054] The main controller module 3 is mainly divided into three modules:

[0055] 4.1 Main control module (main control MCU module 301).

[0056] 1) To achieve the main functions of the ventilator: CPAP (Continuous Positive Airway Pressure), BIPAP (Bilevel Positive Airway Pressure), AWAPS (Automatic Adjustable Positive Airway Pressure Support), etc.

[0057] 2) Turbine control: Gas pressure and flow rate are controlled by controlling the turbine speed.

[0058] 3) System calibration: pressure calibration, oxygen concentration calibration.

[0059] 4) Real-time system monitoring: Monitors whether the voltage of all pressure sensors, flow sensors, various solenoid valves, and modules in the system is normal, and promptly alarms when abnormalities occur.

[0060] 4.2 Interaction Module (Interaction CPU Module 304).

[0061] 1) To display system information and control waveforms on the screen.

[0062] 2) Button / knob communication control.

[0063] 3) Alarm information display.

[0064] 4.3 Safety Assurance Module (Safety MCU303): Ensures patient safety in abnormal situations.

[0065] 1) Last resort in case of main control module failure.

[0066] 2) Turbine emergency braking.

[0067] 3) Safety valve control.

[0068] 4) Pressure monitoring.

[0069] In one embodiment, the turbine drive module 4 includes a motor driver 401, a motor drive board 402, a turbine 403, a braking resistor 404, and a drive-control integrated turbine 405. The motor driver 401 is sequentially connected to the main control MCU module 301, the turbine 403, and the drive-control integrated turbine 405. The motor drive board 402 is sequentially connected to the main control MCU module 301, the turbine 403, and the braking resistor 404, and the turbine 403 is connected to the main control MCU module 301. The drive-control integrated turbine 405 is connected to the main control MCU module 301, thereby supporting multiple different turbines 403 and turbine drivers. This allows a single main controller to support multiple different products; only the appropriate turbine 403 and turbine driver need to be replaced.

[0070] turbine:

[0071] 1) Supports turbines without drive.

[0072] 2) Supports self-driven turbines.

[0073] Turbine drive:

[0074] 1) Supports the drive provided by the turbine supplier.

[0075] 2) Supports turbine drives designed by third parties.

[0076] 3) Supports independently designed turbine drives.

[0077] In summary, this invention features a modular design for the ventilator, simplifying disassembly and replacement during maintenance. Furthermore, the same modules can be used interchangeably across different products, such as the power management module 1 and the turbine drive module 4. This facilitates both later maintenance and product design iteration. This invention significantly reduces maintenance costs, requiring only the replacement of the faulty module, rather than replacing all modules. It enhances module substitutability, allowing the same module to be used in different products, thus reducing R&D costs and shortening development time.

[0078] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ventilator hardware architecture, characterized in that, The system includes a power management module (1), a display module (2), a main controller module (3), and a turbine drive module (4); wherein the main controller module (3) is connected in sequence to the power management module (1), the display module (2), and the turbine drive module (4); The power management module (1) includes a power management board (101); The display module (2) includes a screen MCU board (201), an LVDC interface (202), a backlight interface (203), and a touch screen interface (204); The main controller module (3) includes a main control MCU module (301), a DC-DC power conversion module (302), a safety MCU (303), and an interactive CPU module (304); wherein, the main control MCU module (301) is connected in sequence to the DC-DC power conversion module (302), the safety MCU (303), the interactive CPU module (304), and the turbine drive module (4), and the safety MCU (303) is connected to the interactive CPU module (304); the interactive CPU module (304) is connected in sequence to the screen MCU board (201), the LVDC interface (202), the backlight interface (203), the touch screen interface (204), and the power management board (101), and the DC-DC power conversion module (302) is connected to the power management board (101).

2. The ventilator hardware architecture according to claim 1, characterized in that, The power management board (101) is connected in sequence to the switch (102), fan (103), main battery (104), auxiliary battery (105) and AC-DC power supply (106). The end of the AC-DC power supply (106) away from the power management board (101) is connected in sequence to the filter (107) and AC power supply (108). The power management board (101) is connected to the main controller module (3).

3. The ventilator hardware architecture according to claim 2, characterized in that, The screen MCU board (201) is connected in sequence to the rotary encoder board (205), the power indicator (206), and the alarm indicator (207).

4. The ventilator hardware architecture according to claim 1, characterized in that, The turbine drive module (4) includes a motor driver (401), a motor drive board (402), a turbine (403), a braking resistor (404), and a turbine with integrated drive and control (405); The motor driver (401) is connected in sequence to the main control MCU module (301), the turbine (403) and the integrated drive and control turbine (405), the motor drive board (402) is connected in sequence to the main control MCU module (301), the turbine (403) and the brake resistor (404), and the turbine (403) is connected to the main control MCU module (301).

5. The ventilator hardware architecture according to claim 4, characterized in that, The integrated drive and control turbine (405) is connected to the main control MCU module (301).

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