Multi-channel breathing nursing monitoring equipment

Abstract

The invention relates to multi-channel breathing nursing monitoring equipment, which belongs to the technical field of medical instruments, and comprises a multi-channel gas sampling module, which is used for collecting and shunting gas exhaled by a patient through a shunting tube and a shunting tube connecting seat, so as to prevent cross infection; the independent mechanical sampling device is used for quantitatively sampling the shunted gas; the sensor group is used for carrying out multi-parameter detection on sampled gas; the two-dimensional code generation module integrates the sensor data and the patient identity information to generate a two-dimensional code; the data processing unit analyzes and processes the two-dimensional code information; the two-dimensional code recognition module recognizes and restores the data; and the data storage and display unit stores and displays the breathing data of the patient. All the modules work cooperatively, accurate monitoring and management of breathing data of a patient are achieved, accurate breathing data are provided for medical staff, the efficiency and quality of breathing nursing are effectively improved, and breathing treatment and rehabilitation of the patient are assisted.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multi-channel respiratory care monitoring device. Background Technology

[0002] In hospital wards, especially intensive care units (ICUs) where close monitoring of patients' respiratory status is crucial, it is common to monitor and care for multiple patients simultaneously. However, existing respiratory monitoring equipment exposes numerous serious problems in shared environments. Regarding accuracy, traditional respiratory monitoring devices often use a single sensor or a simple split-circuit approach to monitor the respiratory data of multiple patients. For example, some devices only have a single sensor on the main breathing tubing, using time-segmented data to differentiate between different patients. However, this method is highly susceptible to interference from inconsistent breathing rhythms, leading to data confusion and inaccuracies. In clinical practice, there have been instances where data errors have caused medical staff to misjudge patient conditions, delaying treatment. Cross-infection risk is another prominent issue. Patients' exhaled air may carry various pathogens, such as influenza viruses and Streptococcus pneumoniae. Existing equipment lacks effective isolation measures during gas sampling and monitoring. Some devices use ordinary plastic shunt tubes and simple connection structures, which cannot prevent cross-contamination of exhaled air from different patients. Cross-infection can not only worsen the patient's condition, but may also trigger a large-scale spread of infection within the ward, increasing the difficulty and cost of hospital infection control.

[0003] Furthermore, existing respiratory monitoring equipment suffers from serious deficiencies in data recording and management. Most devices can only record basic parameters such as respiratory rate, failing to comprehensively record crucial data such as respiratory depth, oxygen and carbon dioxide concentrations. Moreover, this data is often stored locally on the device, making remote transmission and sharing difficult, thus limiting collaboration among medical teams and comprehensive analysis of the patient's condition.

[0004] In summary, the shortcomings of existing respiratory monitoring devices in scenarios where multiple people share the equipment seriously affect the quality of medical care and the recovery outcomes of patients, urgently requiring an innovative technological solution to address these issues. Summary of the Invention

[0005] In view of this, the purpose of this invention is to propose a multi-channel respiratory care monitoring device. This device comprises a shunt tube made of medical-grade silicone with a sealing silicone ring and a fastening adjustment ring connection structure; a shunt tube connector with an internal gas gathering chamber and a gas rectifier; an independent mechanical sampling device consisting of a piston, sampling chamber, drive mechanism, and support for quantitative sampling; a sensor group composed of multiple high-precision sensors connected in series to accurately measure respiratory parameters; a QR code generation module for integrating encoded data to generate a QR code; a data processing unit for analyzing and processing data and detecting anomalies; a QR code recognition module for recognizing and parsing the QR code to restore data; and a storage and display unit for storing historical data and intuitively displaying real-time data. This addresses the problems in existing technologies where it is difficult to independently and accurately monitor and record the respiratory data of each patient in scenarios where multiple people share respiratory care equipment, leading to cross-infection and inconvenient data management and sharing.

[0006] This invention is achieved through the following technical solution:

[0007] A multi-channel respiratory care monitoring device includes a multi-channel gas sampling module located near the front end of the patient's respiratory equipment. An independent mechanical sampling device is fixedly installed behind the multi-channel gas sampling module. A QR code generation module is connected to the rear of the independent mechanical sampling device via a gas channel. A sensor group is installed inside the gas channel. A QR code recognition module and a data storage and display unit are connected to the rear of the QR code generation module.

[0008] Furthermore, the multi-channel gas sampling module includes a shunt tube, a shunt tube connector, and a main gas output interface. The shunt tube is made of medical-grade silicone. One end of the shunt tube is equipped with a standard compression fitting interface for tight connection to the patient's breathing equipment. The other end of the shunt tube is inserted into the connection hole of the shunt tube connector.

[0009] The shunt tube connector is disc-shaped and located between the shunt tube and the independent mechanical sampling device. The surface of the shunt tube connector has evenly distributed connection holes, which correspond one-to-one with the shunt tube. The gas gathering cavity inside the shunt tube connector is funnel-shaped, wider at the top and narrower at the bottom. The upper gas inlet area corresponds to the connection end of the shunt tube, and the lower gas gathering area leads to the main gas output interface located in the center. The spiral guide protrusions on the inner wall of the gas gathering cavity guide the gas to flow orderly to the main gas output interface.

[0010] The main gas output interface is a cylindrical pipe that is directly connected to the gas collection chamber. A gas rectifier is installed at the connection point. The gas rectifier consists of multiple parallel guide vanes that are evenly distributed radially to guide the gas flow. It is then connected to an independent mechanical sampling device through a quick-plug connector. The sealing rubber ring inside the connector effectively prevents gas leakage.

[0011] Furthermore, the independent mechanical sampling device consists of a piston, a sampling chamber, a drive mechanism, and a support. The piston is cylindrical and located inside the sampling chamber. A piston rod is connected to one end of the piston, and a sealing rubber ring made of gas corrosion-resistant rubber is installed at the other end of the piston, which fits tightly against the inner wall of the sampling chamber to achieve a good sealing effect. The drive mechanism is connected to the piston rod and is located outside the sampling chamber, providing stable power for the piston movement.

[0012] Furthermore, the sensor group includes a flow sensor, a pressure sensor, an oxygen concentration sensor, and a carbon dioxide concentration sensor, which are installed in series on the same gas channel. The inlet of the flow sensor is connected to the sampling chamber outlet of the independent mechanical sampling device through the connecting pipe. The outlet of the carbon dioxide concentration sensor is at the end of the gas channel. The signal output terminal is connected to the data processing chip of the QR code generation module through a wire.

[0013] Furthermore, the QR code generation module includes a data processing chip and a QR code generation circuit.

[0014] Furthermore, the data processing unit includes a microprocessor, a circuit board, a memory chip, a power management chip, and a communication interface chip.

[0015] Furthermore, the QR code recognition module includes an image acquisition device and a QR code recognition chip.

[0016] Furthermore, the data storage and display unit includes a storage device, a display screen, a control circuit board, and an operating interface.

[0017] The beneficial effects of this invention are as follows:

[0018] This invention, through the combined use of a multi-channel gas sampling module and an independent mechanical sampling device, facilitates independent and accurate sampling of the patient's exhaled gas, avoids data confusion, provides reliable samples for accurate monitoring of respiratory status, and assists medical staff in accurately diagnosing the condition and developing treatment plans.

[0019] The sensor array, comprised of flow, pressure, oxygen, and carbon dioxide sensors, facilitates precise measurement of multiple respiratory parameters, providing healthcare professionals with comprehensive and accurate patient respiratory data. The data processing unit analyzes this data to accurately assess the patient's respiratory function, disease progression, and treatment effectiveness, thereby enabling the creation of personalized treatment plans and significantly enhancing the targetedness and effectiveness of treatment.

[0020] By leveraging the coordinated control of various modules through the data processing unit and the real-time feedback function of the data storage and display unit, it is beneficial to dynamically optimize monitoring parameters based on the patient's real-time condition. The intuitive operation interface allows medical staff to view data and adjust treatment plans in a timely manner, enabling them to efficiently grasp the patient's condition and improve the quality and efficiency of respiratory care.

[0021] By combining the communication interface chip of the data processing unit with the connection structure of remote devices, medical staff can overcome the limitations of time and space, remotely monitor patients' respiratory data and disease progression, provide professional guidance, ensure the continuity and comprehensiveness of respiratory care, and enable patients to receive appropriate medical support in different environments. At the same time, the device can receive updated data, maintain optimal performance and data accuracy, and improve the overall level of respiratory care services. Attached Figure Description

[0022] Figure 1 For the overall internal module structure diagram of the assembly;

[0023] Figure 2 This is a front view of the overall structure;

[0024] Figure 3 This is a partial cross-sectional view of the multi-channel gas sampling module;

[0025] Figure 4 This is a diagram of the internal structure of an independent mechanical sampling device;

[0026] Figure 5 A diagram showing the specific structure for reading data from sensors.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Multi-channel gas sampling module; 2. Independent mechanical sampling device; 3. Sensor group; 4. QR code generation module; 5. Data processing unit; 6. QR code recognition module; 7. Data storage and display unit; 11. Diverter pipe; 12. Diverter pipe connector; 121. Connection hole; 122. Gas gathering chamber; 123. Main gas output interface; 124. Gas rectifier; 21. Piston; 22. Sampling chamber; 23. Piston rod; 24. Sealing rubber ring; 25. Drive mechanism; 31. Flow sensor; 32. Pressure sensor; 33. Oxygen concentration sensor; 34. Carbon dioxide concentration sensor; 41. Data processing chip; 42. QR code generation circuit; 51. Microprocessor; 52. Circuit board; 53. Memory chip; 54. Power management chip; 55. Communication interface chip; 61. Image acquisition device; 62. QR code recognition chip; 71. Storage device; 72. Display screen; 73. Control circuit board; 74. Operation interface. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0034] like Figure 1-5 As shown, one embodiment of the present invention provides a multi-channel respiratory care monitoring device. The device utilizes a vertical cabinet as its mounting platform. The cabinet has anti-vibration pads at the bottom, two horizontal metal mounting plates in the middle (the upper plate for the sampling and detection module, and the lower plate for the data processing module), and a cooling fan at the top. The functional modules are distributed according to the signal flow direction (sampling-detection-processing-display) and ease of operation, forming a compact and collaborative closed-loop monitoring system. The positional relationships, assembly connections, and working principles of each module and core component are as follows:

[0035] The cabinet interior is functionally divided into zones: the multi-channel gas sampling module 1, as the front-end acquisition component, is fixed to the upper mounting plate at the front of the cabinet via an L-shaped metal bracket, facilitating direct connection of the shunt tube 11 to the patient's respiratory equipment; the independent mechanical sampling device 2 is located adjacent to the rear of the multi-channel gas sampling module 1, fixed to the same upper mounting plate via a U-shaped clamp, and directly connected to the main gas output interface 123 of the multi-channel gas sampling module 1 via a gas pipeline; the sensor group 3 is connected in series along the gas flow direction to the upper mounting plate behind the independent mechanical sampling device 2, enabling parameter detection of the sampled gas; data processing unit... Unit 5, as the core control component, is fixed to the lower mounting plate in the middle of the cabinet via copper pillars. It interacts with sensor group 3 and QR code generation module 4 via shielded wires. QR code generation module 4 is integrated on circuit board 52 of data processing unit 5. QR code recognition module 6 is fixed to the middle beam of the cabinet directly above QR code generation module 4 via a metal bracket, ensuring that the lens of image acquisition device 61 is accurately aligned with the QR code display area. Data storage and display unit 7 is embedded in the lower front panel of the cabinet, within the operating field of vision of medical staff, and transmits data to data processing unit 5 via wires. All mounting plates are fastened to the cabinet frame with bolts, and the surface of the mounting plates has pre-drilled slotted holes for easy fine-tuning of module positions.

[0036] The multi-channel gas sampling module 1 includes a split pipe 11, a split pipe connector 12, and a main gas output interface 123, which are mechanically and sealed together. The horizontal section of the L-shaped bracket is fastened to the upper mounting plate with expansion bolts, and the vertical section is fixed to the circumferential side of the split pipe connector 12 with multiple hexagonal bolts, so that the split pipe connector 12 is kept in a horizontal position and liquid accumulation is prevented due to tilting when the gas converges.

[0037] The shunt connector 12 has a disc-shaped structure with multiple evenly distributed connecting holes 121 on its front side. The axis of the connecting holes 121 is aligned with the radial direction of the shunt connector 12. An annular groove is formed on the inner wall of each connecting hole 121 near the port, and a sealing silicone ring is embedded in the annular groove. External threads are machined on the outer side of the port of the connecting hole 121, and internal threads are machined on the inner hole of the fastening adjustment ring. After one end of the shunt tube 11 is inserted into the connecting hole 121, the fastening adjustment ring is tightened to make the shunt tube 11 fit tightly with the sealing silicone ring, achieving a double seal. The other end of the shunt tube 11 is machined with a standard compression fitting interface, which mates with the outer conical surface of the patient's breathing mask or endotracheal tube. The seal is achieved by tightening the compression fitting lock nut, ensuring that no exhaled air from the patient leaks into the shunt tube 11.

[0038] The gas converging chamber 122 is internally formed in the shunt connector 12, with its upper end communicating with each connecting hole 121 and its lower end communicating with the main gas output port 123. The inner wall of the gas converging chamber 122 has an integrally formed spiral guide protrusion to guide the gas flow along a spiral trajectory and avoid eddies. One end of the main gas output port 123 is screwed into the central threaded hole at the rear end of the shunt connector 12 via an external thread, with a polytetrafluoroethylene (PTFE) sealing gasket at the connection. Inside the inlet end of the main gas output port 123, a gas rectifier 124 is fixed by a set screw; its radial guide vanes are parallel to the gas flow direction, converting the spiral airflow into laminar flow. The other end of the main gas output port 123 has a quick-connect connector, which is connected to the inlet of the sampling chamber 22 of the independent mechanical sampling device 2 via a medical silicone tube. Both ends of the silicone tube are locked and sealed with hose clamps.

[0039] The independent mechanical sampling device 2 includes a piston 21, a sampling chamber 22, a piston rod 23, a sealing rubber ring 24, and a drive mechanism 25. The components are assembled through mechanical transmission and a sealing structure. The vertical section of the U-shaped clamp is fastened to the upper mounting plate with bolts, and a rubber buffer pad is pasted on the inner side of the horizontal section. The sampling chamber 22 is clamped in the clamp and secured with locking bolts. The rubber buffer pad absorbs sampling vibrations to avoid affecting accuracy.

[0040] The front end of the sampling chamber 22 is a gas inlet, and the rear end is a gas outlet. The inlet is connected to the main gas output interface 123 through a silicone tube, and the outlet is connected to the inlet of the flow sensor 31 through a silicone tube. The inner wall of the sampling chamber 22 is polished, and the piston 21 is slidably assembled inside it. The central threaded hole at one end of the piston 21 is screwed into the external thread at one end of the piston rod 23, and the connection is coated with thread-locking adhesive. The sealing rubber ring 24 is embedded in the annular groove on the outer periphery of the other end of the piston 21, which fits tightly with the inner wall of the sampling chamber 22 to form a dynamic seal.

[0041] The drive mechanism 25 includes a stepper motor and a ball screw assembly. The stepper motor is fixed to the upper mounting plate behind the sampling chamber 22 via a motor bracket. The motor output shaft is connected to the lead screw of the ball screw assembly via a coupling, and the other end of the lead screw is fixed via a bearing seat. The ball screw nut is connected to the end of the piston rod 23 away from the piston 21 via a pin, and the end of the pin is locked with a cotter pin. To achieve unidirectional gas flow, one-way solenoid valves are installed at the inlet and outlet of the sampling chamber 22, respectively, and are synchronously controlled by the data processing unit 5 along with the drive mechanism 25: when the piston 21 moves backward, the inlet solenoid valve opens and the outlet solenoid valve closes, and gas is drawn into the sampling chamber 22; when the piston 21 pushes forward, the inlet solenoid valve closes and the outlet solenoid valve opens, and gas is discharged into the sensor group 3.

[0042] The sensor group 3 includes a flow sensor 31, a pressure sensor 32, an oxygen concentration sensor 33, and a carbon dioxide concentration sensor 34. The four sensors are connected in series along the gas flow direction and fixed to the upper mounting plate by an aluminum alloy profile bracket. Each sensor is fixed by a metal clip, and the clip locking screws can be used for quick assembly and disassembly.

[0043] The inlet of flow sensor 31 is connected to the outlet of sampling chamber 22 via a silicone tube. The outlet is connected to the inlet of pressure sensor 32. The outlet of pressure sensor 32 is connected to the inlet of oxygen concentration sensor 33. The outlet of oxygen concentration sensor 33 is connected to the inlet of carbon dioxide concentration sensor 34. All silicone tube joints are locked with hose clamps. The outlet of carbon dioxide concentration sensor 34 is connected to the exhaust gas pipeline. The pipeline is arranged along the inner wall of the cabinet and fixed with pipe clamps. The end extends to the outside of the cabinet and is equipped with an activated carbon filter.

[0044] Each sensor's signal output terminal is soldered with a shielded wire. The shielding layer is connected to the sensor housing and then grounded. The other end of the wire is soldered with a terminal and inserted into the terminal block of the data processing unit 5 circuit board 52. The terminal block is labeled with the sensor number to ensure accurate wiring. Each sensor converts the detected physical quantity into an electrical signal, which is then transmitted to the microprocessor 51 for signal amplification and filtering.

[0045] The data processing unit 5 includes a microprocessor 51, a circuit board 52, a memory chip 53, a power management chip 54, and a communication interface chip 55. Each chip is soldered onto the circuit board 52. The circuit board 52 is fixed to the lower mounting plate by copper pillars. The copper pillars have reserved heat dissipation gaps. The edges of the circuit board 52 are fixed to the mounting plate with fixing clips to prevent deformation.

[0046] The microprocessor 51 is soldered to the core area of ​​the circuit board 52, and the memory chip 53, power management chip 54, and communication interface chip 55 are distributed around it and connected by copper foil lines on the circuit board 52. The power management chip 54 is connected to the cabinet power distribution module, which converts AC power into DC voltage and regulates it through a filter capacitor. The communication interface chip 55 is connected to the remote medical system through a network cable interface or a wireless module to realize data upload.

[0047] The QR code generation module 4 includes a data processing chip 41 and a QR code generation circuit 42, both soldered onto the circuit board 52 and located to the right of the microprocessor 51. The signal input terminal of the data processing chip 41 is connected to the microprocessor 51 via the circuit board 52, receiving processed sensor data and patient information and encoding them into digital signals. The QR code generation circuit 42 is connected to the data processing chip 41, converting the digital signals into QR code graphic signals, which are then transmitted via wires to a small LCD display screen at the front of the cabinet for display.

[0048] The QR code recognition module 6 includes an image acquisition device 61 and a QR code recognition chip 62, which are fixed to the middle beam of the cabinet by a metal bracket. The bracket is located directly above the small LCD display screen, and the lens is vertically aligned with the display screen. The bracket adjustment slot can adjust the distance between the lens and the display screen to ensure clear imaging.

[0049] The image acquisition device 61 is fixed to the bracket with screws. A data cable is connected to the QR code recognition chip 62 via a ribbon cable with a snap-fit ​​connector. The QR code recognition chip 62 is fixed to the side of the bracket with screws, and its signal output is connected to the microprocessor 51 via a shielded wire. After acquiring the QR code image, the image acquisition device 61 transmits it to the QR code recognition chip 62 for decoding. The reconstructed data is compared and verified with the original data from the microprocessor 51 to ensure accurate transmission.

[0050] The data storage and display unit 7 includes a storage device 71, a display screen 72, a control circuit board 73, and an operating interface 74, all integrated in the lower front panel area of ​​the cabinet. The control circuit board 73 is bolted to a mounting bracket inside the cabinet, and the mounting bracket is welded to the cabinet frame. The storage device 71 is connected to the control circuit board 73 via an M.2 interface, which is secured with locking screws. The display screen 72 has a back-mounted clip that engages with the panel opening, and the ribbon cable passes through the panel's cable routing holes to connect to the control circuit board 73.

[0051] The operation interface 74 is integrated on the surface of the display screen 72 and is connected to the control circuit board 73 via wires. The signal input terminal of the control circuit board 73 is connected to the microprocessor 51 via shielded wires, receives the processed data and transmits it to the storage device 71 for storage. At the same time, the parameters are displayed on the display screen 72 according to the channel partitions. The parameters are presented in both digital and real-time curve formats.

[0052] The implementation of this embodiment proceeds through the following stages in sequence:

[0053] Installation and debugging phase

[0054] Rack Fixing: Place and level the rack, securing it to the ground with expansion bolts; connect the main power supply, start the cooling fan, and check the output voltage of the power distribution module. Module Assembly: Install and connect the wiring in the following order: "Multi-channel gas sampling module 1, Independent mechanical sampling device 2, Sensor group 3, Data processing unit 5, QR code recognition module 6, Data storage and display unit 7," verifying the accuracy of the terminal connections.

[0055] Debugging steps: ① Sensor calibration: Connect a standard gas cylinder to the calibration interface of sensor group 3, and calibrate in the order of flow sensor 31, pressure sensor 32, oxygen concentration sensor 33, and carbon dioxide concentration sensor 34. The calibration data is stored in memory chip 53, and the error is verified through standard gas; ② Functional test: Start the QR code generation and recognition function, and check the image clarity and decoding accuracy; ③ Parameter setting: Enter patient information and set alarm thresholds (respiratory rate 8-30 breaths / minute, etc.) on the operation interface 74; ④ Remote connection: Connect to the remote medical system through the communication interface chip 55 and upload test data.

[0056] Clinical monitoring phase

[0057] Patient Connection: The shunt tube 11 is connected to the patient's breathing equipment via a compression fitting and tightened. The operation interface 74 completes the binding of the channel and patient information. Monitoring Start: Clicking "Start Monitoring" initiates the coordinated operation of the microprocessor 51, driving mechanism 25, and solenoid valve to achieve time-segmented quantitative sampling.

[0058] Data processing and display: The sensor group 3 detects the signal and transmits it to the microprocessor 51 for processing. Simultaneously, it is transmitted to the data processing chip 41 to generate a QR code. After the QR code recognition module 6 decodes and verifies the code, the data is transmitted to the control circuit board 73, displayed on the screen 72, and stored in the storage device 71.

[0059] Anomaly Handling: When a parameter exceeds the threshold, the microprocessor 51 triggers the LED to flash and the buzzer to sound an alarm. The alarm information is uploaded to the remote system through the communication interface chip 55. After handling the situation, medical staff click "Cancel Alarm".

[0060] Routine maintenance phase

[0061] Daily maintenance: After powering off, disassemble and disinfect the shunt pipe 11, reassemble, and check the seal; clean the display screen 72 and check the sealing of the pipe interfaces. Weekly maintenance: Perform single-point calibration of sensor group 3, clean the lens of image acquisition device 61 and adjust the focus; back up the data of storage device 71. Monthly maintenance: Check the chip solder joints of circuit board 52, clean the dust inside the cabinet, and check the operation of the cooling fan.

[0062] This embodiment achieves multiple advantages through precise assembly and modular collaboration: the independent shunt tube 11 and sealed structure of the multi-channel gas sampling module 1, combined with the flow guidance design of the gas converging chamber 122, reduce the incidence of cross-infection; the quantitative sampling of the independent mechanical sampling device 2, in collaboration with the solenoid valve and the multi-parameter detection of the sensor group 3, reduces measurement errors; QR code closed-loop verification ensures accurate data transmission, and the communication interface chip 55 enables remote sharing, improving consultation efficiency; the visual interface and modular design improve operational efficiency and reduce maintenance costs. Overall, it provides an efficient and safe solution for multi-patient respiratory monitoring.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-channel respiratory care monitoring device, characterized in that: The device includes a multi-channel gas sampling module located near the front end of the patient's breathing equipment. An independent mechanical sampling device is fixedly installed behind the multi-channel gas sampling module. A QR code generation module is connected to the rear of the independent mechanical sampling device via a gas channel. A sensor group is installed inside the gas channel. A QR code recognition module and a data storage and display unit are connected to the rear of the QR code generation module.

2. The multi-channel respiratory care monitoring device according to claim 1, characterized in that: The multi-channel gas sampling module includes a shunt tube, a shunt tube connector, and a main gas output interface. The shunt tube is made of medical-grade silicone. One end of the shunt tube is equipped with a standard compression fitting interface for tight connection to the patient's breathing equipment. The other end of the shunt tube is inserted into the connection hole of the shunt tube connector. The shunt tube connector is disc-shaped and located between the shunt tube and the independent mechanical sampling device. The surface of the shunt tube connector has evenly distributed connection holes, which correspond one-to-one with the shunt tube. The gas gathering cavity inside the shunt tube connector is funnel-shaped, wider at the top and narrower at the bottom. The upper gas inlet area corresponds to the connection end of the shunt tube, and the lower gas gathering area leads to the main gas output interface located in the center. The spiral guide protrusions on the inner wall of the gas gathering cavity guide the gas to flow orderly to the main gas output interface. The main gas output interface is a cylindrical pipe that is directly connected to the gas collection chamber. A gas rectifier is installed at the connection point. The gas rectifier consists of multiple parallel guide vanes that are evenly distributed radially to guide the gas flow. It is then connected to an independent mechanical sampling device through a quick-plug connector. The sealing rubber ring inside the connector effectively prevents gas leakage.

3. The multi-channel respiratory care monitoring device according to claim 2, characterized in that: The independent mechanical sampling device consists of a piston, a sampling chamber, a drive mechanism, and a support. The piston is cylindrical and located inside the sampling chamber. A piston rod is connected to one end of the piston, and a sealing rubber ring made of gas corrosion-resistant rubber is installed at the other end of the piston, which fits tightly against the inner wall of the sampling chamber to achieve a good sealing effect. The drive mechanism is connected to the piston rod and is located outside the sampling chamber, providing stable power for the piston movement.

4. The multi-channel respiratory care monitoring device according to claim 2, characterized in that: The sensor group includes a flow sensor, a pressure sensor, an oxygen concentration sensor, and a carbon dioxide concentration sensor, which are installed in series on the same gas channel. The inlet of the flow sensor is connected to the sampling chamber outlet of the independent mechanical sampling device through the connecting pipe. The outlet of the carbon dioxide concentration sensor is at the end of the gas channel. The signal output terminal is connected to the data processing chip of the QR code generation module through a wire.

5. A multi-channel respiratory care monitoring device according to claim 2, characterized in that: The QR code generation module includes a data processing chip and a QR code generation circuit.

6. A multi-channel respiratory care monitoring device according to claim 2, characterized in that: The data processing unit includes a microprocessor, a circuit board, a memory chip, a power management chip, and a communication interface chip.

7. A multi-channel respiratory care monitoring device according to claim 1, characterized in that... The QR code recognition module includes an image acquisition device and a QR code recognition chip.

8. A multi-channel respiratory care monitoring device according to claim 1, characterized in that... The data storage and display unit includes a storage device, a display screen, a control circuit board, and an operation interface.

Images