CN210228848U - Automatic humidifier for artificial airway - Google Patents
Automatic humidifier for artificial airway Download PDFInfo
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- CN210228848U CN210228848U CN201920808876.7U CN201920808876U CN210228848U CN 210228848 U CN210228848 U CN 210228848U CN 201920808876 U CN201920808876 U CN 201920808876U CN 210228848 U CN210228848 U CN 210228848U
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Abstract
The utility model discloses an automatic humidifier of artifical air flue, including heating humidifying device and artifical air flue, still including setting up the inside temperature and humidity sensor of artifical air flue and the controller that is used for controlling heating humidifying device work, temperature and humidity sensor's output connection signal detection processing module, signal detection processing module are including the filter circuit, amplifier circuit and the quick output circuit who connect gradually, the utility model discloses a temperature and humidity sensor real-time detection artifical air flue inside to design signal detection processing module and handle temperature and humidity sensor's output signal, improved the inside temperature and humidity detection's of artifical air flue accuracy effectively, the controller is according to the output signal who connects signal detection processing module adjusting heating humidifying device's operating condition, avoids not enough or the excessive situation of humidifying effectively.
Description
Technical Field
The utility model relates to an artifical air flue humidification equipment technical field especially relates to artifical air flue automatic humidifier.
Background
The daily water loss in the respiratory tract of a patient after tracheotomy can be increased by about 900ml compared with that of a normal population, so that the humidification of the respiratory tract is particularly important for the patient. The existing artificial airway humidifying device, such as an artificial nose, has smaller air outlet holes and air inlet holes, and can usually have insufficient humidification; the infusion regulator or the injection pump adopts a continuous air passage humidification mode, researches show that the continuous air passage humidification is closer to the physiological humidification state of an air passage, but the temperature and humidity in the artificial air passage are difficult to control, so that excessive humidification is easily caused, and the pollution is caused because the inlet is easily separated.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an automatic humidifier for artificial airway.
The technical scheme of its solution is, automatic humidifier of artifical air flue, including heating humidifying device and artifical air flue, still including setting up the inside temperature and humidity sensor of artifical air flue and the controller that is used for control heating humidifying device work, temperature and humidity sensor's output connection signal detection processing module, signal detection processing module is including the filter circuit, amplifier circuit and the quick output circuit who connect gradually, temperature and humidity sensor's output is connected to filter circuit's input, quick output circuit's output is connected the input of controller.
Preferably, the filter circuit includes a resistor R1, one end of the resistor R2 is connected to the output end of the temperature and humidity sensor, the other end of the resistor R2 is connected to one end of the resistor R2, one end of the capacitor C1 and the input end of the amplifying circuit, and the other ends of the resistor R2 and the capacitor C1 are grounded.
Preferably, the amplifying circuit includes an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to one end of the capacitor C1, an inverting input terminal of the operational amplifier AR1 is connected to one end of the resistor R3 and the capacitor C2, the other end of the resistor R3 is connected to a drain of the MOS transistor Q1, a collector of the transistor VT1 and one end of the resistor R6, the other end of the resistor R6 is grounded, an output terminal of the operational amplifier AR1 is connected to the other end of the capacitor C2 and a gate of the MOS transistor Q1, a source of the MOS transistor Q1 is connected to a base of the transistor 686vt 8 and is grounded through the resistor R4 and the capacitor C3 which are connected in parallel, and an emitter of the transistor VT1 is grounded.
Preferably, the fast output circuit includes an operational amplifier AR2, an inverting input terminal of the operational amplifier AR2 is connected to one ends of resistors R6 and R7, a non-inverting input terminal of the operational amplifier AR2 is connected to an emitter of a transistor VT1, an output terminal of the operational amplifier AR2 is connected to the other end of the resistor R7 and one end of the resistor R8, the other end of the resistor R8 is connected to one end of a capacitor C4 and an input terminal of the controller, and the other end of the capacitor C4 is grounded.
Preferably, the controller is a single chip microcomputer with the model of Arduino UNO.
Preferably, a display is further arranged on the shell of the heating and humidifying device, and the display is connected with the controller through a data bus.
Preferably, the heating and humidifying device is an MR370 heating and humidifying device.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model adopts the temperature and humidity sensor to detect the temperature and the humidity inside the artificial air passage in real time, and designs the signal detection processing module to process the output signal of the temperature and humidity sensor, thereby effectively improving the accuracy of the temperature and humidity detection inside the artificial air passage;
2. the single chip microcomputer adjusts the working state of the heating and humidifying device according to the output signal of the signal detection and processing module, so that the temperature of the gas in the artificial air passage is properly maintained between 28 ℃ and 32 ℃ to maintain the optimal state of the ciliary movement of the bronchus, and simultaneously, the humidity in the artificial air passage is ensured to be always in the optimal absorption state of the human body, and the condition of insufficient humidification or excessive humidification is effectively avoided.
Drawings
Fig. 1 is a system connection block diagram of the present invention.
Fig. 2 is a connection diagram of the signal detection processing module of the present invention.
Fig. 3 is a schematic circuit diagram of the novel signal detection processing module.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, the automatic humidifier with artificial airway comprises a heating and humidifying device and an artificial airway, and further comprises a temperature and humidity sensor arranged inside the artificial airway and a controller used for controlling the heating and humidifying device to work, wherein the output end of the temperature and humidity sensor is connected with a signal detection and processing module. When the temperature and humidity sensor is specifically set, the temperature and humidity sensor is selected as LCT27011 and used for detecting the temperature and humidity inside the artificial air passage and converting the temperature and humidity into current analog quantity signals with the corresponding magnitude of the temperature and humidity value to output. The heating and humidifying device is an MR370 heating and humidifying device, and gas with proper temperature and humidity is supplied to a patient. The controller chooses the model to be Arduino UNO's singlechip for use, still is provided with the display on the casing of heating humidification device, and the display is used for showing the inside temperature and humidity of artifical air flue, is convenient for observe, and the display passes through data bus and connects the singlechip.
In order to ensure the accuracy of temperature and humidity detection in the artificial airway, a signal detection processing module is designed to process output signals of the temperature and humidity sensor of the LCT 27011. As shown in fig. 2, the signal detection processing module includes a filter circuit, an amplifier circuit and a fast output circuit, which are connected in sequence, wherein an input end of the filter circuit is connected to an output end of the temperature and humidity sensor, and an output end of the fast output circuit is connected to an input end of the controller.
As shown in fig. 3, the filter circuit includes a resistor R1, one end of the resistor R2 is connected to the output end of the temperature and humidity sensor, the other end of the resistor R2 is connected to one end of the resistor R2, one end of the capacitor C1 and the input end of the amplifier circuit, and the other ends of the resistor R2 and the capacitor C1 are grounded. The resistor R2 and the capacitor C1 form RC filtering to perform low-pass filtering processing on output signals of the temperature and humidity sensor, and high-frequency clutter interference caused by the external environment is reduced.
Because the intensity of the output signal of the temperature and humidity sensor is weak, the signal intensity needs to be amplified to improve the signal intensity, so that the change value of the detection signal is more obvious. The operational amplifier AR1 in the amplifying circuit firstly amplifies the RC-filtered signal by using the in-phase proportion amplification principle, then the output signal of the operational amplifier AR1 is improved by using the good temperature characteristic of the MOS tube Q1, and the output signal of the MOS tube Q1 is finally sent to the triode VT1 for amplification and output, thereby greatly improving the signal amplification efficiency. The non-inverting input end of the operational amplifier AR1 is connected with one end of a capacitor C1, the inverting input end of the operational amplifier AR1 is connected with one ends of a resistor R3 and a capacitor C2, the other end of the resistor R3 is connected with the drain of a MOS tube Q1, the collector of a triode VT1 and one end of a resistor R6, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR1 is connected with the other end of the capacitor C2 and the grid of the MOS tube Q1, the source of the MOS tube Q1 is connected with the base of a triode VT1 and is grounded through a resistor R4 and a capacitor C3 which are connected in parallel, and the emitter of the triode VT1 is grounded through. In the signal amplification process, the capacitor C2 plays a role in signal compensation at the feedback end of the operational amplifier AR1 to ensure the normal output of signals, and the resistor R4 and the capacitor C3 play a role in stabilizing the input signal of the base of the transistor VT1 to ensure the stability of the signal output of the transistor VT 1.
The fast output circuit comprises an operational amplifier AR2, an inverting input end of the operational amplifier AR2 and an inverting input end of a non-inverting input end operational amplifier AR2 are connected with one ends of resistors R6 and R7, a non-inverting input end of the operational amplifier AR2 is connected with an emitter of a triode VT1, an output end of the operational amplifier AR2 is connected with the other end of the resistor R7 and one end of a resistor R8, the other end of the resistor R8 is connected with one end of a capacitor C4 and an input end of a controller, and the other end of the capacitor C4 is grounded. According to the principle of the operational amplifier, the signal potential value of the non-inverting input terminal of the operational amplifier AR1 is equal to the potential value of the inverting input terminal thereof, so that a part of the signal of the inverting input terminal of the operational amplifier AR1 is output to the inverting input terminal of the operational amplifier AR2, and meanwhile, the output signal of the triode VT1 is output to the non-inverting input terminal of the operational amplifier AR2, so that the operational amplifier AR2 forms a double channel to rapidly output the amplified signal of the amplifying circuit, the signal processing speed is increased, and the timeliness of temperature and humidity detection is ensured. And finally, an output signal of the operational amplifier AR2 is filtered by a capacitor C4 and then is sent into the single chip microcomputer.
The utility model discloses when specifically using, adopt the inside humiture of temperature and humidity sensor real-time detection artificial air way to design signal detection processing module and handle temperature and humidity sensor's output signal, improved the inside temperature and humidity detection's of artificial air way accuracy effectively. The single chip microcomputer adjusts the working state of the heating and humidifying device according to the output signal of the signal detection and processing module, and the specific working flow is as follows: because the gas temperature can be partially dissipated in the conveying process of the artificial airway, the single chip microcomputer adjusts the heating power of the heating humidifier according to the received signal value, so that the gas temperature in the artificial airway is properly maintained between 28 and 32 ℃, and the optimal state of the movement of the bronchial cilia is maintained; meanwhile, the single chip microcomputer starts the heating humidifier when the air humidity in the artificial air passage is less than 50%, and closes the heating humidifier when the humidity is greater than 80%, so that the internal humidity of the artificial air passage is always in the optimal absorption state of a human body, and the condition of insufficient humidification or excessive humidification is effectively avoided. Wherein the single chip microcomputer controlled heating humidifier is the conventional prior art and is not detailed here.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (7)
1. Automatic humidifier of artifical air flue, including heating humidification device and artifical air flue, its characterized in that: the temperature and humidity sensor and the controller are arranged inside the artificial air flue, the controller is used for controlling the heating and humidifying device to work, the output end of the temperature and humidity sensor is connected with the signal detection and processing module, the signal detection and processing module comprises a filter circuit, an amplifying circuit and a quick output circuit which are sequentially connected, the input end of the filter circuit is connected with the output end of the temperature and humidity sensor, and the output end of the quick output circuit is connected with the input end of the controller.
2. The artificial airway automatic humidifier according to claim 1, wherein: the filter circuit comprises a resistor R1, one end of a resistor R2 is connected with the output end of the temperature and humidity sensor, the other end of a resistor R2 is connected with one end of a resistor R2, one end of a capacitor C1 and the input end of the amplifying circuit, and the other ends of the resistor R2 and the capacitor C1 are grounded.
3. The artificial airway automatic humidifier according to claim 2, wherein: the amplifying circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a capacitor C1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and one end of a capacitor C2, the other end of a resistor R3 is connected with the drain electrode of a MOS transistor Q1, the collector electrode of a triode VT1 and one end of a resistor R6, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR1 is connected with the other end of a capacitor C2 and the grid electrode of a MOS transistor Q1, the source electrode of the MOS transistor Q1 is connected with the base electrode of a triode VT1 and is grounded through a resistor R4 and a capacitor C3 which are connected in parallel, and.
4. The artificial airway automatic humidifier according to claim 3, wherein: the fast output circuit comprises an operational amplifier AR2, wherein the inverting input end of the operational amplifier AR2 is connected with one ends of resistors R6 and R7, the non-inverting input end of the operational amplifier AR2 is connected with the emitter of a triode VT1, the output end of the operational amplifier AR2 is connected with the other end of the resistor R7 and one end of the resistor R8, the other end of the resistor R8 is connected with one end of a capacitor C4 and the input end of a controller, and the other end of the capacitor C4 is grounded.
5. The automatic humidifier for artificial airway according to any one of claims 1-4, characterized in that: the controller selects a singlechip with the model of Arduino UNO.
6. The artificial airway automatic humidifier according to claim 5, wherein: and a display is also arranged on the shell of the heating and humidifying device and is connected with the controller through a data bus.
7. The artificial airway automatic humidifier according to claim 6, wherein: the heating and humidifying device is an MR370 heating and humidifying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808876.7U CN210228848U (en) | 2019-05-30 | 2019-05-30 | Automatic humidifier for artificial airway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808876.7U CN210228848U (en) | 2019-05-30 | 2019-05-30 | Automatic humidifier for artificial airway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210228848U true CN210228848U (en) | 2020-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920808876.7U Expired - Fee Related CN210228848U (en) | 2019-05-30 | 2019-05-30 | Automatic humidifier for artificial airway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210228848U (en) |
-
2019
- 2019-05-30 CN CN201920808876.7U patent/CN210228848U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200403 Termination date: 20210530 |