Pressure measuring equipment for breathing balloon accessory

Abstract

The utility model relates to the technical field of breathing balloon detection equipment, in particular to pressure measuring equipment for breathing balloon accessories, which comprises a main body shell, a multi-specification adaptive interface, a pressure sensor, a pressure sensor and a pressure sensor, the multi-specification adaptive interface comprises an elastic silicon rubber case and a quick-assembly thread structure, the adjustable range of the inner diameter of the elastic silicon rubber case is 5-22 mm, the elastic silicon rubber case and the quick-assembly thread structure are coaxially nested, pipelines of different specifications and M8 threaded interfaces are adapted, an annular protrusion and a sealing ring are combined, the adaptability is good, connection is quick, an adapter is not needed, and the service life of the adapter is prolonged. The MEMS piezoresistive sensor is matched with the isolating membrane to resist interference, display pressure waveforms and numerical values in real time and accurately recognize the pressure waveforms and numerical values, the buzzer gives an alarm intelligently, manual misjudgment is avoided, the whole machine is light in weight, equipment is fixed through the C-shaped clamp, the two hands are liberated, and the mobile monitoring requirement of an emergency scene is met.

Description

Technical Field

[0001] This utility model relates to the technical field of breathing balloon testing equipment, and specifically discloses a pressure measuring device for breathing balloon accessories. Background Technology

[0002] A breathing bag is an emergency artificial ventilation device, primarily used to assist patients' breathing during cardiopulmonary resuscitation or respiratory failure. Its core function is to deliver oxygen or air to the patient's lungs by manually squeezing the bag, while simultaneously forming a seal between the bag and the patient's face through a mask to ensure effective ventilation. A pressure safety valve is typically installed on the outer wall of the airway to automatically release pressure when the delivered air pressure exceeds a set value, preventing barotrauma to the patient's airway.

[0003] Respiratory bags are essential devices for maintaining patient ventilation in emergency and clinical settings. Their components (such as one-way valves, pressure relief valves, and the bag itself) require regular testing of their sealing and pressure parameters to ensure safety. Current technologies often rely on universal pressure gauges or manual compression tests for this purpose, which has the following drawbacks:

[0004] 1. The universal pressure gauge interface is incompatible with the balloon accessories, requiring an additional adapter, which is cumbersome to operate;

[0005] 2. It cannot dynamically record pressure change curves, making it difficult to detect minute leaks;

[0006] 3. Lacks portability, making it difficult to quickly detect in emergency situations. Utility Model Content

[0007] This utility model proposes a pressure measuring device for breathing bag accessories, which can be adapted to different specifications of pipelines and M8 threaded interfaces. Combined with annular protrusions and sealing rings, it has good adaptability, quick connection, no need for adapters, prevents leakage and improves efficiency. In addition, the buzzer provides intelligent alarm to avoid human misjudgment.

[0008] This invention is implemented as follows: a pressure measuring device for a breathing balloon accessory, comprising:

[0009] The main body shell is internally divided into a front cavity, a middle cavity, and a rear cavity;

[0010] A multi-specification adapter interface is provided on the front end face of the housing of the front cavity. The multi-specification adapter interface includes an elastic silicone sleeve and a quick-connect thread structure. The inner diameter of the elastic silicone sleeve is adjustable from 5 to 22 mm, and the quick-connect thread structure is a standard M8×1 thread.

[0011] A pressure sensing module is fixed on a metal bracket of the front cavity. The pressure sensing module includes a sensor and an isolation diaphragm, and the isolation diaphragm covers the pressure-sensing surface of the sensor.

[0012] A data processing unit is installed in the central cavity, and the data processing unit includes an MCU circuit board;

[0013] The human-computer interaction module is located in the rear cavity and includes an OLED display, a buzzer, and physical buttons. The MCU circuit board is connected to the human-computer interaction module via an SPI interface.

[0014] The power module, installed at the bottom of the central cavity, is used to supply power to the various components.

[0015] As a preferred embodiment of the pressure measuring device for a breathing bag accessory of this utility model, the rear end of the multi-specification adapter interface is connected to an air port, and an air guide channel is connected between the air port and the air chamber inlet of the pressure sensing module. The air guide channel is a polycarbonate tube with an inner diameter of 4mm, and the connection between the air guide channel and the pressure sensing module is sealed by an O-ring.

[0016] As a preferred embodiment of the pressure measuring device for a breathing bag accessory according to this utility model, the elastic silicone sleeve is coaxially arranged with the quick-release thread structure, and the inner wall of the elastic silicone sleeve is provided with annular protrusions, the height of the annular protrusions being 0.5mm and the spacing being 3mm.

[0017] As a preferred embodiment of the pressure measuring device for a breathing bag accessory according to this utility model, the sensor is a MEMS piezoresistive sensor and the isolation membrane is a polytetrafluoroethylene isolation membrane.

[0018] As a preferred embodiment of the pressure measuring device for a breathing bag accessory according to this utility model, the outer wall of the MCU circuit board is integrated with a Bluetooth module, which wirelessly transmits pressure data to an external mobile terminal.

[0019] As a preferred embodiment of the pressure measuring device for a breathing balloon accessory according to this utility model, a clamping tube is fixedly connected to the side wall of the main body shell, the clamping tube has a C-shaped structure and a rubber pad is fixedly connected to its inner side.

[0020] As a preferred embodiment of the pressure measuring device for breathing bag accessories according to this utility model, the power module is a replaceable lithium battery, and the outer wall of the quick-release thread structure is provided with anti-slip ridges.

[0021] The beneficial effects of this utility model are:

[0022] This device features a flexible silicone sleeve and a quick-connect threaded coupling, making it compatible with various pipe specifications and M8 thread interfaces. Combined with an annular protrusion and a sealing ring, it offers excellent adaptability, quick connection, and eliminates the need for adapters. It also prevents leaks and improves efficiency. The MEMS piezoresistive sensor, along with an isolation diaphragm, provides anti-interference capabilities, displays pressure waveforms and values ​​in real time, and accurately identifies pressure. A buzzer provides an intelligent alarm, preventing human error. The device is lightweight, and a C-shaped clamp secures it, freeing up your hands and meeting the mobile monitoring needs of emergency scenarios. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the elastic silicone sleeve of this utility model;

[0026] Figure 3 This is a diagram showing the overall external structure of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the clamping tube of this utility model.

[0028] The markings in the diagram are: 1. Main housing; 2. Front cavity; 3. Middle cavity; 4. Rear cavity; 5. Multi-size adapter interface; 6. Elastic silicone sleeve; 7. Quick-release threaded structure; 8. Pressure sensing module; 9. Sensor; 10. Isolation membrane; 11. Air guide channel; 12. Data processing unit; 13. MCU circuit board; 14. Bluetooth module; 15. Human-machine interaction module; 16. OLED display; 17. Buzzer; 18. Physical button; 19. Power module; 20. O-ring seal; 21. Annular protrusion; 22. Clamping tube; 23. Rubber pad; 24. Anti-slip ridge. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0030] Please see Figure 1-4 A pressure measuring device for a breathing bag accessory, comprising:

[0031] The main body shell 1 is divided into a front cavity 2, a middle cavity 3 and a rear cavity 4.

[0032] The multi-specification adapter interface 5 is located on the front end face of the housing of the front end cavity 2. The multi-specification adapter interface 5 includes an elastic silicone sleeve 6 and a quick-connect thread structure 7. The inner diameter of the elastic silicone sleeve 6 is adjustable from 5 to 22 mm, and the quick-connect thread structure 7 is a standard M8×1 thread.

[0033] The pressure sensing module 8 is fixed on the metal bracket of the front cavity 2. The pressure sensing module 8 includes a sensor 9 and an isolation diaphragm 10, with the isolation diaphragm 10 covering the pressure-sensing surface of the sensor 9.

[0034] Data processing unit 12 is installed in the central cavity 3. Data processing unit 12 includes MCU circuit board 13.

[0035] The human-machine interaction module 15 is located in the rear cavity 4 and includes an OLED display 16, a buzzer 17 and physical buttons 18. The MCU circuit board 13 is connected to the human-machine interaction module 15 through the SPI interface.

[0036] The power module 19 is installed at the bottom of the central cavity 3 and is used to power the various components.

[0037] In this embodiment: the breathing bag accessories (such as one-way valves, tubing, etc.) are connected through the multi-specification adapter interface 5. The elastic deformation of the elastic silicone sleeve 6 is used to wrap the soft tubing, or the rigid interface is screwed on through the quick-connect thread structure 7 to form an airtight channel. The coaxial nesting design of the elastic silicone sleeve 6 and the quick-connect thread structure 7 is compatible with 5-22mm pipe diameter and M8 thread interface. Combined with the annular protrusion 21 and O-ring seal 20, a quick connection without leakage is achieved. No additional adapters are required. It has strong versatility and high detection efficiency.

[0038] External pressure is transmitted to the pressure sensing module 8 through the air guide channel 11. After the liquid is isolated by the polytetrafluoroethylene isolation membrane 10, the MEMS piezoresistive sensor 9 converts the pressure signal into an electrical signal. The MCU circuit board 13 of the data processing unit 12 filters, compares thresholds, and processes the signal using algorithms. The pressure waveform and value are displayed in real time on the OLED display screen 16 to avoid human error and trigger the buzzer 17 to alarm abnormal pressure. This meets the mobile detection needs of emergency scenarios and is easy to use. The power module 19 supplies power to all components, the Bluetooth module 14 supports wireless data transmission, and the clamping tube 22 can fix the device to the balloon tubing to achieve continuous monitoring.

[0039] As a technical optimization of this utility model, the rear end of the multi-specification adapter interface 5 is connected to an air port, and an air guide channel 11 is connected between the air port and the air chamber inlet of the pressure sensing module 8. The air guide channel 11 is a polycarbonate tube with an inner diameter of 4mm, and the connection between the air guide channel 11 and the pressure sensing module 8 is sealed by an O-ring 20.

[0040] In this embodiment: the gas guide channel 11 serves as the pressure transmission medium, connecting the multi-specification adapter interface 5 to the gas chamber inlet of the pressure sensing module 8. The gas pressure is stably transmitted through the rigid structure of the polycarbonate tube. The O-ring seal 20 ensures the airtightness between the gas guide channel and the sensor gas chamber. The polycarbonate tube is corrosion-resistant, deformation-resistant, and does not easily age after long-term use.

[0041] As a technical optimization of this utility model, the elastic silicone sleeve 6 and the quick-release thread structure 7 are coaxially arranged. The inner wall of the elastic silicone sleeve 6 is provided with annular protrusions 21, the height of which is 0.5mm and the spacing is 3mm.

[0042] In this embodiment: the spiral arrangement of the annular protrusions 21 forms a progressive resistance, which can prevent slippage when adapting to different pipe diameters. The coaxial design of the silicone sleeve and the thread structure saves space and avoids the cumbersome operation of switching between multiple interfaces.

[0043] As a technical optimization of this utility model, sensor 9 is a MEMS piezoresistive sensor and isolation membrane 10 is a polytetrafluoroethylene isolation membrane.

[0044] In this embodiment: the MEMS piezoresistive sensor 9 converts the pressure signal into an electrical signal through the piezoresistive effect, and the polytetrafluoroethylene isolation membrane 10 isolates the liquid or particulate matter in the measured gas and protects the sensor's sensitive element.

[0045] As a technical optimization of this utility model, a Bluetooth module 14 is integrated on the outer wall of the MCU circuit board 13, and the Bluetooth module 14 wirelessly transmits pressure data to an external mobile terminal.

[0046] In this embodiment, the Bluetooth module 14 is integrated into the MCU circuit board 13 and sends real-time pressure data to a mobile phone or tablet terminal via the BLE protocol. Wireless transmission avoids cable interference and supports remote monitoring and multi-person collaborative operation.

[0047] As a technical optimization of this utility model, a clamping tube 22 is fixedly connected to the side wall of the main body shell 1. The clamping tube 22 has a C-shaped structure and a rubber pad 23 is fixedly connected to its inner side.

[0048] In this embodiment: the C-shaped clamping tube 22 clamps the breathing bag tubing through elastic deformation, and the inner rubber pad 23 increases the friction to fix the device.

[0049] As a technical optimization of this utility model, the power module 19 is a replaceable lithium battery, and the outer wall of the quick-release thread structure 7 is provided with anti-slip ridges 24.

[0050] In this embodiment: the power module 19 is a replaceable lithium battery, which is easy to replace, and the anti-slip ridge 24 on the outer wall of the quick-release thread structure 7 increases the friction when screwing.

[0051] The working principle and usage process of this utility model are as follows: The pressure measuring device connects to breathing bag accessories (such as one-way valves, tubing, etc.) through multi-specification adapter interfaces 5. It utilizes the elastic deformation of the elastic silicone sleeve 6 to wrap the soft tubing, or screws a rigid interface through a quick-connect threaded structure 7 to form an airtight channel. External pressure is transmitted to the pressure sensing module 8 via the air guide channel 11. After the liquid is isolated by the polytetrafluoroethylene isolation membrane 10, the MEMS piezoresistive sensor 9 converts the pressure signal into an electrical signal. The MCU circuit board 13 of the data processing unit 12 filters, performs threshold comparison, and algorithm processing on the signal, displays the pressure waveform and value in real time on the OLED display screen 16, and triggers the buzzer 17 to alarm for abnormal pressure. The power module 19 supplies power to all components, the Bluetooth module 14 supports wireless data transmission, and the clamping tube 22 can fix the device to the breathing bag tubing for continuous monitoring.

[0052] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0053] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A pressure measuring device for a breathing bag accessory, characterized in that: include: The main body shell (1) is divided into a front cavity (2), a middle cavity (3) and a rear cavity (4). A multi-specification adapter interface (5) is provided on the front end face of the housing of the front end cavity (2). The multi-specification adapter interface (5) includes an elastic silicone sleeve (6) and a quick-connect thread structure (7). The inner diameter of the elastic silicone sleeve (6) is adjustable from 5 to 22 mm. The quick-connect thread structure (7) is a standard M8×1 thread. The pressure sensing module (8) is fixed on the metal bracket of the front cavity (2). The pressure sensing module (8) includes a sensor (9) and an isolation membrane (10). The isolation membrane (10) covers the pressure-sensing surface of the sensor (9). A data processing unit (12) is installed in the central cavity (3), and the data processing unit (12) includes an MCU circuit board (13); The human-computer interaction module (15) is located in the rear cavity (4) and includes an OLED display screen (16), a buzzer (17) and physical buttons (18). The MCU circuit board (13) is connected to the human-computer interaction module (15) through the SPI interface. The power module (19) is installed at the bottom of the central cavity (3) and is used to power the components.

2. The pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The rear end of the multi-specification adapter interface (5) is connected to an air port. An air guide channel (11) is connected between the air port and the air chamber inlet of the pressure sensing module (8). The air guide channel (11) is a polycarbonate tube with an inner diameter of 4 mm. The connection between the air guide channel (11) and the pressure sensing module (8) is sealed by an O-ring (20).

3. The pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The elastic silicone sleeve (6) is coaxially arranged with the quick-release thread structure (7). The inner wall of the elastic silicone sleeve (6) is provided with annular protrusions (21). The height of the annular protrusions (21) is 0.5 mm and the spacing is 3 mm.

4. The pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The sensor (9) is a MEMS piezoresistive sensor, and the isolation membrane (10) is a polytetrafluoroethylene isolation membrane.

5. A pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The outer wall of the MCU circuit board (13) is integrated with a Bluetooth module (14), which wirelessly transmits pressure data to an external mobile terminal.

6. A pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The main body shell (1) has a clamping tube (22) fixedly connected to its side wall. The clamping tube (22) has a C-shaped structure and a rubber pad (23) is fixedly connected to its inner side.

7. A pressure measuring device for a breathing bag accessory according to claim 1, characterized in that: The power module (19) is a replaceable lithium battery, and the outer wall of the quick-release thread structure (7) is provided with anti-slip ridges (24).

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