CN218546613U - Medical exhaled NO gas concentration measurement and analysis device based on PID sensor - Google Patents

Abstract

The invention discloses a medical exhaled NO gas concentration measurement and analysis device based on a PID sensor, which includes a power supply module, a control module, a sensor module, a gas collection module and a display module; , the sensor module, and the screen module are connected; the control module is connected with the sensor module and the screen module through a wire, processes the data collected by the sensor and controls the display module; the sensor module is used to measure the gas composition data to be measured, and is connected with the main controller module through a wire; The gas collection module sends the inhaled gas to be tested to the sensor module after drying; the display module displays the detection results and interacts with the user, and is connected to the main controller through wires. The device of the invention has the advantages of high detection precision, fast speed and small volume, and meets the precision requirements of medical detection.

Description

A medical exhaled NO gas concentration measurement and analysis device based on PID sensor

technical field

The invention relates to the field of medical equipment, in particular to a medical exhaled NO gas concentration measurement and analysis device based on a PID sensor.

Background technique

Detecting the components of human exhaled breath through non-invasive in vitro diagnostic technology can extract some health information of the human body, which can significantly reduce the pain of patients in routine medical testing. According to the technical standards of the American Thoracic Society and the European Respiratory Society (ATS/ERS), the NO marker content of respiratory inflammation is extremely low, and the concentration range in the nasal cavity is 0.015-0.05ppm. Existing detection technologies such as electrochemical and fluorescence methods have low precision (resolution > 1ppm), and cannot accurately and quickly measure the NO content in human exhaled air, and cannot meet the precision required for medical diagnosis.

Contents of the invention

In order to solve the deficiencies mentioned in the above-mentioned background technology, the purpose of the present invention is to provide a medical exhaled NO gas concentration measurement and analysis device based on a PID sensor, the detection accuracy reaches 0.001ppm (1ppb), which is much higher than other current solutions, and meets the requirements of medical treatment. Diagnostic accuracy requirements.

The purpose of the present invention can be achieved through the following technical solutions:

A medical exhaled NO gas concentration measurement and analysis device based on a PID sensor, comprising a power module, a control module, a sensor module, a gas collection module and a display module;

The power supply module provides power for the whole device, and is connected with the main controller module, the sensor module and the screen module through wires;

The control module is connected with the sensor module and the screen module through wires, processes the data collected by the sensor and controls the display module;

The sensor module is used to measure the gas composition data to be measured, and is connected to the main controller module through wires;

The gas collection module sends the inhaled gas to be tested to the sensor module after drying;

The display module displays the detection results and interacts with the user, and is connected with the main controller through wires.

Further preferably, the control module includes a single-chip microcomputer, an indicator light, and an interface circuit. The control module analyzes, processes, and saves the data collected by the sensor. The single-chip microcomputer reads the real-time measured value of the sensor. When the measured value exceeds the set warning value , it will control the display module to display warning information and make a sound.

Further preferably, the sensor module is a PID sensor, the PID sensor is fixedly installed in the air duct, the two ends of the air duct are respectively connected to the gas collection module and the gas collection bag, and the PID sensor measures the NO content of the input gas.

Further preferably, the power supply module includes a switching power supply, a DC/DC voltage regulator, and an LDO voltage regulator. The switching power supply transmits power from the power socket of the device to the device, and is converted by the DC/DC voltage regulator and the LDO voltage regulator. The voltage required by each module is delivered to each module through wires.

Further preferably, the gas collection module includes a gas blowing port, the gas blowing port is connected to the inlet end of the drying pipe through a pipeline, a valve is provided on the pipeline between the gas blowing port and the drying tube, and the gas outlet end of the drying tube passes through The micro air pump is connected with the sensor module.

Further preferably, the display module is an LCD touch screen, which interacts with the user through touch.

Beneficial effects of the present invention:

The device of the present invention introduces the gas into the drying pipe, and after drying, it is introduced into the air inlet of the sensor, and flows out from the gas outlet of the sensor. After the sensor is stable, the main controller reads the real-time measurement value of the sensor and presents the measurement value in the form of a curve Displayed by the screen module, when the measured value exceeds the set warning value, it means that the NO content in the exhaled gas is abnormal. The main controller controls the screen to display a warning message and make a sound to remind the user to pay attention. The alarm threshold can be set through the touch screen. Compared with the traditional method, it has the advantages of high precision (resolution of 0.001ppm), fast speed and small volume, and meets the precision requirements of medical testing.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the medical exhaled NO gas concentration measurement and analysis device of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A medical exhaled NO gas concentration measurement and analysis device based on a PID sensor, comprising a power module, a control module, a sensor module, a gas collection module and a display module;

The power supply module provides power for the whole device, and is connected with the main controller module, sensor module and screen module through wires;

The control module is connected with the sensor module and the screen module through wires, processes the data collected by the sensor and controls the display module;

The sensor module is used to measure the gas composition data to be measured, and is connected to the main controller module through wires;

The gas collection module sends the inhaled gas to be tested to the sensor module after drying;

The display module displays the detection results and interacts with the user, and is connected with the main controller through wires.

The control module consists of a single-chip microcomputer, an indicator light, and an interface circuit. The control module analyzes, processes, and saves the data collected by the sensor. The single-chip microcomputer reads the real-time measurement value of the sensor. When the measurement value exceeds the set warning value, it will control the display. The module displays a warning message and emits a sound.

The sensor module is a PID sensor, and the PID sensor is fixedly installed in the air duct, and the two ends of the air duct are respectively connected to the gas collection module and the gas collection bag, and the PID sensor measures the NO content of the input gas.

The power supply module includes switching power supply, DC/DC voltage regulator, and LDO voltage regulator. The switching power supply transmits power from the power socket of the device to the device, and converts the voltage required by each module through the DC/DC voltage regulator and LDO voltage regulator. It is sent to each module through wires.

The gas collection module includes a blowing port, which is connected to the inlet end of the drying pipe through a pipeline, a valve is arranged on the pipe between the blowing port and the drying pipe, and the outlet end of the drying pipe is connected to the sensor module through a micro air pump.

The display module is an LCD touch screen, which interacts with the user through touch.

When measuring, first blow air to the air inlet, the gas enters the sensor through the drying tube along the air path, the main controller reads the NO concentration value measured by the sensor, and displays the concentration value on the screen in real time. When the main controller detects that the concentration value exceeds the preset threshold, it means that the NO content in the exhaled gas is abnormal. The main controller controls the screen to display a warning message and make a sound to remind the user to pay attention. The alarm threshold can be set through the touch screen.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention.

Claims (5)

1. A medical exhaled NO gas concentration measurement and analysis device based on a PID sensor, characterized in that it comprises a power supply module, a control module, a sensor module, a gas collection module and a display module; The power supply module provides power for the whole device, and is connected with the main controller module, the sensor module and the screen module through wires; The control module is connected with the sensor module and the screen module through wires, processes the data collected by the sensor and controls the display module; The sensor module is used to measure the gas composition data to be measured, and is connected to the main controller module through wires; The gas collection module sends the inhaled gas to be tested to the sensor module after drying; The display module displays the test results and interacts with the user, and is connected to the main controller through wires; The medical exhaled NO gas concentration measurement and analysis device based on the PID sensor is characterized in that the control module includes a single-chip microcomputer, an indicator light, and an interface circuit, and the control module analyzes, processes and saves the data collected by the sensor, and the single-chip microcomputer reads The real-time measurement value of the sensor is obtained, and when the measurement value exceeds the set warning value, the display module will be controlled to display a warning message and make a sound. 2. The medical exhaled NO gas concentration measurement and analysis device based on the PID sensor according to claim 1, wherein the sensor module is a PID sensor, and the PID sensor is fixedly installed in the airway tube, and the two sides of the airway tube The terminals are respectively connected to the gas collection module and the gas collection bag, and the PID sensor measures the NO content of the input gas. 3. The medical exhaled NO gas concentration measurement and analysis device based on the PID sensor according to claim 1, wherein the power supply module includes a switching power supply, a DC/DC voltage regulator, an LDO voltage regulator, and a switching power supply slave device The power socket of the power supply sends power to the device, and the voltage required by each module is obtained through DC/DC voltage regulator and LDO voltage regulator conversion, and is sent to each module through wires. 4. the medical exhaled NO gas concentration measurement and analysis device based on PID sensor according to claim 1, is characterized in that, described gas collection module comprises blowing mouth, and described blowing mouth is connected with the inlet end of drying pipe by pipeline, A valve is arranged on the pipeline between the blowing port and the drying pipe, and the air outlet end of the drying pipe is connected to the sensor module through a micro air pump. 5 . The medical exhaled NO gas concentration measurement and analysis device based on a PID sensor according to claim 1 , wherein the display module is an LCD touch screen, which interacts with the user through touch.

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