CN219941515U - Air bag pressure regulating device - Google Patents
Air bag pressure regulating device Download PDFInfo
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- CN219941515U CN219941515U CN202321647471.2U CN202321647471U CN219941515U CN 219941515 U CN219941515 U CN 219941515U CN 202321647471 U CN202321647471 U CN 202321647471U CN 219941515 U CN219941515 U CN 219941515U
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 206010035664 Pneumonia Diseases 0.000 description 2
- 208000009470 Ventilator-Associated Pneumonia Diseases 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004092 self-diagnosis Methods 0.000 description 2
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
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Abstract
The utility model provides an air bag pressure regulating device, which relates to the technical field of air bag pressure regulation and comprises a control system, a monitoring system, an air supply assembly and a power supply assembly, wherein the power supply assembly comprises a control system power supply and a monitoring system power supply, the control system power supply is connected with the control system, the monitoring system power supply is connected with the monitoring system, the control system comprises a control MCU and a first pressure sensor, the monitoring system comprises a monitoring MCU and a second pressure sensor, the control MCU and the monitoring MCU are electrically connected with the air supply assembly, and the control MCU is electrically connected with the monitoring MCU. Two pressure sensors are used, and the two sensors are independently powered, so that common-mode interference is eliminated, and the sensors can be subjected to self-detection through data comparison of the two sensors, and the system safety is improved; and the dual MCU design mode is used, the monitoring MCU actively cuts off the air pump when controlling the MCU to fail, and the air leakage path is opened, so that the safety of a user is protected.
Description
Technical Field
The utility model relates to the technical field of air bag pressure regulation, in particular to an air bag pressure regulating device.
Background
Mechanical ventilation through an oral tracheal cannula is a common respiratory support method for treating critical patients with respiratory insufficiency by ICU, however, the occurrence rate of ventilator-associated pneumonia (ventilator associated pneumonia, VAP) is high, difficult withdrawal, prolonged ICU time, increased medical cost and serious influence on the prognosis of the patients. According to the consensus of management specialists of artificial airway airbags, managing the pressure of the tracheal intubation airbags is one of the important means for reducing the occurrence of VAP, and two inflation modes exist at present: the first is manual inflation, which has the disadvantage that the accuracy cannot be ensured; the second is automatic aerating device, adopts intelligent mode to aerify, but can't reduce the unreasonable risk that the danger that leads to by electronic electric system's fault action led to the fact, and the pressure is too low to lead to sealed not good, takes place the mistake and inhale, and the too big injury air flue of pressure is comprehensive, and current trachea cannula gasbag pressure regulating device mainly defect lies in: the mechanical safety valve is set for fixed pressure, the maximum protection pressure is the maximum medium setting pressure of the equipment, and real-time pressure protection cannot be achieved; after the MCU is abnormal, the gas circuit cannot be controlled normally, and protection cannot be provided; when the sensor is adopted, the balloon pressure cannot be ensured after the sensor precision is deviated; when two sensors are adopted, the same manufacturer and the same model sensor are used, and the same power supply is used, so that common mode interference cannot be eliminated; the present utility model has been made in view of the above-mentioned drawbacks.
Disclosure of Invention
The object of the present utility model is to provide an airbag pressure regulator, providing a monitoring system, adding a control system independent of the control system, which reduces the risk of unreasonable risks caused by faulty behaviour of the electronic and electrical system to acceptable levels.
In order to solve the problems, the utility model provides an air bag pressure adjusting device which comprises a control system, a monitoring system, an air supply assembly and a power supply assembly, wherein the power supply assembly comprises a control system power supply and a monitoring system power supply, the control system power supply is connected with the control system, the monitoring system power supply is connected with the monitoring system, the control system comprises a control MCU and a first pressure sensor, the monitoring system comprises a monitoring MCU and a second pressure sensor, the control MCU and the monitoring MCU are electrically connected with the air supply assembly, and the control MCU is electrically connected with the monitoring MCU.
According to an embodiment of the utility model, the first pressure sensor and the second pressure sensor use different models or types of sensors.
According to an embodiment of the utility model, the monitoring system further comprises a motor current detection module.
According to an embodiment of the utility model, the air bag pressure adjusting device further comprises an alarm assembly.
According to one embodiment of the utility model, the alarm assembly is provided with two groups, and is respectively and electrically connected with the monitoring MCU and the control MCU.
According to one embodiment of the utility model, the monitoring MCU generates an alarm when detecting that the pressure difference between the first pressure sensor and the second pressure sensor is greater than 2cm H2O.
According to one embodiment of the utility model, the monitoring MCU and the control MCU do not communicate for more than 500ms, generate an alarm,
according to an embodiment of the present utility model, the two sets of alarm components are a buzzer and a speaker, respectively.
According to an embodiment of the utility model, the control system further comprises a human-machine interface.
According to an embodiment of the utility model, the control system further comprises a display assembly.
According to an embodiment of the present utility model, the air supply assembly is an air pump.
The utility model has the beneficial effects that two pressure sensors are used, and the two sensors are independently powered, so that common-mode interference is eliminated, and the sensors can be subjected to self-detection through data comparison of the two sensors, and the system safety is improved; the dual MCU design mode is used, the monitoring MCU actively cuts off the air pump when controlling the MCU to fail, and opens the air leakage air path, so that the safety of a user is protected; the motor current detection module can detect whether a control loop is normal or not when the motor current detection module is started, the self-diagnosis capability of the system is improved, and the safety of a user is protected.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is an overall schematic view of an airbag pressure regulator;
FIG. 2 is a schematic diagram of a self-test flow;
fig. 3 is a schematic workflow diagram.
Detailed Description
The following description is presented to enable one skilled in the art to practice the utility model and is provided only to enable the utility model. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other arrangements without departing from the spirit and scope of the utility model.
[ example 1 ]
The air bag pressure regulating device provides a pressure regulating device with a monitoring system, and the monitoring system independent of a control system is added, so that the unreasonable risk caused by the danger caused by the fault action of an electronic and electric system can be reduced to an acceptable level after the double MCU is used.
The basic conception is as follows: the system is divided into a control system and a monitoring system, the two systems operate independently, the control system and the monitoring system respectively use pressure sensors of different models or different types of two manufacturers, such as a strain type pressure sensor, a capacitance type pressure sensor and the like, the two pressure sensors are powered by independent power supplies, the control system can directly close the air pump, open the air leakage path, and the monitoring system can directly start protection when abnormality occurs. In addition, the monitoring system provides an air pump motor current detection module, can carry out self-checking on a control loop under the condition that an air pump is not started, ensures control safety, and utilizes watchdog 1 and watchdog 2 to regularly check the internal condition of an MCU chip and send a restarting signal to the chip once errors occur.
The control steps are as follows when in use:
pressure sensor self-checking flow: after the system is electrified, the control and monitoring MCU respectively carries out fault detection on the pressure sensors (the pressure sensor 2 and the pressure sensor 1), if an alarm E01 or E02 is generated by abnormality, the self-checking is finished, if the pressure sensors are normal, the two MCU are mutually communicated, whether the pressure value difference value of the two sensors is within a 2cm H2O range is judged, if the pressure value difference value of the two sensors is not within the 2cm H2O range, an alarm E03 is generated, the self-checking is finished, if the pressure value difference value of the two sensors is normal, the self-checking is successful, and the program flow chart is shown in figure 1.
Normal working procedure: after receiving the control signal, the control MCU starts the inflation flow, takes the pressure value of the pressure sensor as input, automatically calculates single air transmission quantity through a PID algorithm, controls the MCU to calculate the working time of the air pump according to the single air transmission quantity, controls the air pump to work, realizes the real-time control of the pressure in the balloon, keeps real-time communication between the monitoring MCU and the control MCU, generates an alarm when detecting that the pressure difference value of the two pressure sensors is more than 2cm H2O, closes the air pump power supply, opens the air release path, and if the monitoring MCU does not receive the control MCU signal for more than 500ms or the control MCU does not receive the monitoring MCU signal for more than 500ms, stops the air pump, opens the air release path, generates an alarm, and the working flow is as shown in figures 2 and 3.
The main advantages are that: the pressure sensors of different models of different manufacturers are used, and the two sensors are independently powered, so that common-mode interference is eliminated, and the sensors can be subjected to self-detection through data comparison of the two sensors, and the safety of a system is improved; the dual MCU design mode is used, the monitoring MCU actively cuts off the air pump when controlling the MCU to fail, and opens the air leakage air path, so that the safety of a user is protected; the motor current detection module can detect whether a control loop is normal or not when the motor current detection module is started, the self-diagnosis capability of the system is improved, and the safety of a user is protected.
Preferably, the alarm assembly is provided with two groups which are respectively electrically connected with the monitoring MCU and the control MCU, the two groups of alarm assemblies are respectively a buzzer and a loudspeaker, and the sound characteristics are different when the alarm is carried out, so that the fault reasons can be distinguished conveniently.
Preferably, the control system further comprises a human-machine interface and control components, such as a mouse, a keyboard, etc.
Preferably, the control system further comprises a display assembly.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model are susceptible to any variations and modifications without departing from the principles.
Claims (10)
1. Gasbag pressure regulating device, its characterized in that: including control system, monitored control system, air feed subassembly and power supply module, power supply module includes control system power and monitored control system power, the control system power is connected with control system, the monitored control system power is connected with monitored control system, control system includes control MCU and first pressure sensor, monitored control system includes control MCU and second pressure sensor, control MCU and control MCU all with the air feed subassembly electricity is connected, control MCU with the control MCU electricity is connected.
2. The airbag pressure regulator according to claim 1, wherein: the first and second pressure sensors use different models or types of sensors.
3. The airbag pressure adjusting apparatus according to claim 1 or 2, characterized in that: the monitoring system further comprises a motor current detection module.
4. A balloon pressure regulating device according to claim 3, wherein: the air bag pressure adjusting device also comprises an alarm assembly.
5. The airbag pressure regulator of claim 4, wherein: the alarm assembly is provided with two groups which are respectively and electrically connected with the monitoring MCU and the control MCU.
6. The airbag pressure regulator according to claim 4 or 5, characterized in that: and the monitoring MCU generates an alarm when detecting that the pressure difference between the first pressure sensor and the second pressure sensor is more than 2cm H2O.
7. The airbag pressure regulator of claim 6, wherein: and the monitoring MCU and the control MCU do not communicate for more than 500ms, and an alarm is generated.
8. The airbag pressure adjusting apparatus according to any one of claims 4, 5, and 7, wherein: the two groups of alarm components are respectively a buzzer and a loudspeaker.
9. The airbag pressure adjusting apparatus according to any one of claims 1, 2, 4, 5, and 7, wherein: the control system also includes a human-machine interface and a display assembly.
10. The airbag pressure regulator of claim 9, wherein: the air supply component is an air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321647471.2U CN219941515U (en) | 2023-06-27 | 2023-06-27 | Air bag pressure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321647471.2U CN219941515U (en) | 2023-06-27 | 2023-06-27 | Air bag pressure regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219941515U true CN219941515U (en) | 2023-11-03 |
Family
ID=88554282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321647471.2U Active CN219941515U (en) | 2023-06-27 | 2023-06-27 | Air bag pressure regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219941515U (en) |
-
2023
- 2023-06-27 CN CN202321647471.2U patent/CN219941515U/en active Active
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