CN218852697U - Portable expiration nitric oxide detector - Google Patents

Abstract

The utility model provides a portable expiration nitric oxide detector, which comprises a shell, a power supply mechanism, a signal processor, a gas detection mechanism connected with the signal processor, a button input mechanism, a screen display mechanism, an alarm mechanism and a storage mechanism; the power supply mechanism supplies power for the signal processor, the gas detection mechanism, the screen display mechanism and the alarm mechanism. The utility model discloses a portable expiration nitric oxide detector, sensitivity is high, detect that the lower limit is low, with low costs, ability simultaneous measurement environment NO concentration, easy operation are applicable to non professional medical personnel and use.

Description

Portable expiration nitric oxide detector

Technical Field

The utility model relates to a nitric oxide detection area especially relates to a portable expiration nitric oxide detector.

Background

Nitric Oxide (NO) is an important biological regulator, playing an important role in a variety of physiological and pathological links. Wherein, the exhaled nitric oxide (FeNO) can be used as a biomarker of airway inflammation (such as asthma, chronic cough and the like). The FeNO monitoring has higher clinical application value in the aspects of asthma diagnosis, medication management, control level evaluation, acute attack prediction and the like.

However, the current FeNO detection also has certain technical problems. For one, the FeNO detection requires a lower detection limit. The FeNO levels in healthy adults without inflammation and asthma are considered to be below 25ppb by the American thoracic Association (ATS) guidelines. Secondly, the current evidence does not support FeNO alone as a tool for asthma diagnosis, and dynamic monitoring is more instructive than single results. Thirdly, the concentration of NO in the environment has certain influence on the detection of FeNO, and the concentration of NO in the indoor ambient air is generally required to be less than 5ppb. Therefore, there is a need for a FeNO detector with high sensitivity and low detection limit, which is portable and easy to operate, and can simultaneously detect the concentration of NO in the environment, so that the FeNO detector is convenient for a patient to monitor the FeNO at any time, and is more beneficial to diagnosis and treatment of diseases. And no equipment capable of realizing the functions at the same time exists in the market at present.

Disclosure of Invention

To the not enough among the above-mentioned prior art, the utility model provides a portable expiration nitric oxide detector, sensitivity is high, detect that the lower limit is low, with low costs, ability simultaneous measurement environment NO concentration, easy operation are applicable to non-professional medical personnel and use.

In order to achieve the above object, the present invention provides a portable exhaled nitric oxide detector, which comprises a housing, a power supply mechanism, a signal processor, a gas detection mechanism connected to the signal processor, a button input mechanism, a screen display mechanism, an alarm mechanism and a storage mechanism; the power supply mechanism supplies power for the signal processor, the gas detection mechanism, the screen display mechanism and the alarm mechanism.

Preferably, the gas detection mechanism comprises an NO sensor and an NO sensing probe, and the NO sensing probe is detachably connected with the NO sensor; the NO sensor is arranged in the shell, and the NO sensing probe extends out of the shell from one side of the shell.

Preferably, the NO sensor is an electrochemical NO sensor; the NO sensing probe adopts a pump suction type probe.

Preferably, the gas detection mechanism further comprises a rubber hose and a mouthpiece, and the mouthpiece is detachably connected to the NO sensing probe through the rubber hose.

Preferably, the button input mechanism includes a plurality of direction keys, a reset key, a mode switching key, a confirm key, a cancel key, a memory key, and a delete key disposed on the surface of the housing.

Preferably, the screen display mechanism includes a liquid crystal display, and the liquid crystal display is disposed above the front surface of the housing.

Preferably, the alarm mechanism comprises a buzzer and at least one indicator light arranged on the surface of the shell.

Preferably, the power supply mechanism comprises a charging circuit, a power switch and a charging interface, and the power switch and the charging interface are arranged on the surface of the shell and connected with the charging circuit; the charging circuit is arranged in the shell and supplies power for the signal processor, the gas detection mechanism, the screen display mechanism and the alarm mechanism.

Preferably, a movable handle is arranged above the shell.

Preferably, the back and the bottom of the shell are provided with a plurality of tiptoes.

The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:

1. through the cooperation of NO sensor and NO sensing probe and NO sensor, NO sensing probe, the cooperation of rubber hose and blow gun, environment and expiration nitric oxide detection function have been integrated, the two shares same sensing probe, only need during the use with blow gun and rubber hose insert on the sensing probe and press the mode switch button and can realize detecting the switching that detects to FeNO by environment NO, detect NO concentration in the ambient air before FeNO detects, can prevent effectively that environment NO from detecting to cause great error to FeNO, feNO detects and the diagnostic reliability of air flue inflammation has been improved.

2. The utility model discloses a portable, information can be saved, and convenience of customers operates by oneself, realizes FeNO's dynamic monitoring.

3. The utility model discloses a cost is lower and dismantle convenient blow gun and flexible rubber hose, can realize many people/monitoring many times, makes things convenient for professional medical institution, family and relevant unit to detect, can also prevent breeding and the pollution of bacterium simultaneously.

4. The utility model discloses a detachable NO sensing probe conveniently tears open after the sensor reachs the life deadline and trades.

Drawings

Fig. 1 is a front view of a portable exhaled nitric oxide detector according to an embodiment of the present invention;

fig. 2 is a left side view of a portable exhaled nitric oxide detector according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection structure of the NO sensing probe, the rubber hose and the mouthpiece according to the embodiment of the present invention;

fig. 4 is a schematic diagram of an internal structure of the embodiment of the present invention.

Detailed Description

The following description of the preferred embodiment of the present invention will be given in detail with reference to the accompanying drawings, fig. 1 to 4, so as to better understand the functions and features of the present invention.

Referring to fig. 1-2, a portable exhaled nitric oxide detector according to an embodiment of the present invention includes a housing 1, a power mechanism 2, a signal processor 3, a gas detection mechanism 4 connected to the signal processor 3, a button input mechanism 5, a screen display mechanism 6, an alarm mechanism 7, and a storage mechanism 8; the power supply mechanism 2 supplies power to the signal processor 3, the gas detection mechanism 4, the screen display mechanism 6 and the alarm mechanism 7.

The gas detection mechanism 4 comprises an NO sensor and an NO sensing probe 41, wherein the NO sensing probe 41 is detachably connected with the NO sensor; the NO sensor is arranged in the shell 1, and the NO sensing probe 41 extends out of the shell 1 from one side of the shell 1.

The NO sensor adopts an electrochemical NO sensor; the NO sensing probe 41 is a pump suction type probe.

The gas detection mechanism 4 further comprises a rubber hose 42 and a blowing nozzle 43, wherein the blowing nozzle 43 is detachably connected with the NO sensing probe 41 through the rubber hose 42, so that FeNO detection can be realized.

Through the arrangement, the detection of the environmental air NO and the FeNO can be realized, the cost is lower, the disassembly is convenient, and the detection can be carried out by multiple persons/times.

The button input mechanism 5 includes direction keys 51, a reset key 52, a mode switching key 53, a confirmation key 54, a cancel key 55, a memory key 56, and a delete key 57 provided on the surface of the housing 1. The mode switching key 53 is used to switch the environment NO detection/the FeNO detection, and the memory key 56 and the delete key 57 are used to store and modify information in the storage mechanism 8, facilitating multiple detections. Reset key 52 is used to clear data.

The screen display mechanism 6 includes a liquid crystal display 61, and the liquid crystal display 61 is disposed above the front surface of the housing 1.

The alarm mechanism 7 includes a buzzer 71 and at least one indicator light 72 disposed on the surface of the housing 1. The buzzer 71 and the indicator lamp 72 are positioned on the right side of the screen, when the detected FeNO concentration reaches a threshold value, the buzzer 71 and the indicator lamp 72 give an alarm, the threshold value is preset to be 25ppb,50ppb and 100ppb, and the threshold value can be adjusted through the button input module.

The power supply mechanism 2 comprises a charging circuit, a power supply switch 21 and a charging interface 22, wherein the power supply switch 21 and the charging interface 22 are arranged on the surface of the shell 1 and are connected with the charging circuit; the charging circuit is arranged in the shell 1 and supplies power for the signal processor 3, the gas detection mechanism 4, the screen display mechanism 6 and the alarm mechanism 7.

A movable handle 11 is arranged above the shell 1, which is convenient for carrying.

The back and the bottom of the shell 1 are provided with a plurality of tiptoes.

The utility model discloses a portable expiration nitric oxide detector, in using, at first, open switch 21, press mode shift key 53 and set up the detection mode into environment NO and detect, the NO sensing probe 41 sample through the pump suction formula, gaseous reachs the electrochemistry NO sensor after and reacts with the sensor, turn into the signal of telecommunication with gas signal, and send the signal to signal processor 3, signal processor 3 sends the signal of handling to screen display mechanism 6 respectively again, alarm mechanism 7 and storage mechanism 8, with the gaseous concentration information display of NO on LCD 61, if the gaseous concentration of NO exceeds and predetermines the threshold value, pilot lamp 72 and bee calling organ 71 will report to the police, can accomplish the measuring of environment NO through above step. When the concentration of NO in the ambient air is lower than the detection limit of the NO sensor, namely the influence of NO in the ambient air on the detection of FeNO is small, the detection of FeNO can be carried out. One end of a rubber hose 42 is connected with a pump suction type NO sensing probe 41, the other end of the rubber hose 42 is connected with a blowing nozzle 43, a mode switching key 53 is pressed to set a detection mode to be FeNO detection, a user inhales forcefully for 5 minutes after resting quietly to reach the total lung amount, then the blowing nozzle 43 is tightly held by the mouth, and the user exhales slowly for 10 seconds to finish sampling, wherein the signal processing and output process is similar to the environment NO detection, if the FeNO concentration exceeds 25ppb, further detection and diagnosis are needed, and if the FeNO concentration exceeds 50ppb, serious airway inflammation is possibly caused. The FeNO data storage and arrangement of a user can be completed through the memory key 56 and the deletion key 57, when a plurality of persons/times of detection are carried out, the blowing nozzle 43 can be replaced, and when the detection instrument is polluted or insensitive to detection, the rubber hose 42, the NO sensing probe 41 and the NO sensor can be replaced.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims (10)

1. A portable expiration nitric oxide detector is characterized by comprising a shell, a power supply mechanism, a signal processor, a gas detection mechanism, a button input mechanism, a screen display mechanism, an alarm mechanism and a storage mechanism, wherein the gas detection mechanism, the button input mechanism, the screen display mechanism, the alarm mechanism and the storage mechanism are connected with the signal processor; the power supply mechanism supplies power for the signal processor, the gas detection mechanism, the screen display mechanism and the alarm mechanism.

2. The portable exhaled nitric oxide detector according to claim 1, wherein said gas detection mechanism comprises an NO sensor and an NO sensing probe, said NO sensing probe being detachably connected to said NO sensor; the NO sensor is arranged in the shell, and the NO sensing probe extends out of the shell from one side of the shell.

3. The portable exhaled nitric oxide detector according to claim 2, wherein said NO sensor is an electrochemical NO sensor; the NO sensing probe adopts a pump suction type probe.

4. The portable exhaled nitric oxide detector according to claim 2, wherein said gas detection mechanism further comprises a rubber hose and a mouthpiece, said mouthpiece being detachably connected to said NO sensing probe through said rubber hose.

5. The portable nitric oxide breath detector of claim 2 or 4, wherein said button input mechanism comprises a plurality of direction keys, a reset key, a mode switching key, a confirm key, a cancel key, a memory key and a delete key disposed on the surface of said housing.

6. The portable exhaled nitric oxide detector of claim 5, wherein said screen display mechanism comprises a liquid crystal display, said liquid crystal display being disposed above said housing front face.

7. The portable exhaled nitric oxide detector of claim 6, wherein said alarm mechanism comprises a buzzer and at least one indicator light disposed on the surface of said housing.

8. The portable exhaled nitric oxide detector according to claim 7, wherein said power mechanism comprises a charging circuit, a power switch and a charging interface, said power switch and said charging interface are disposed on the surface of said housing and connected to said charging circuit; the charging circuit is arranged in the shell and supplies power for the signal processor, the gas detection mechanism, the screen display mechanism and the alarm mechanism.

9. The portable exhaled nitric oxide detector of claim 8, wherein a movable handle is provided above said housing.

10. The portable exhaled nitric oxide detector according to claim 9, wherein the back and bottom of the housing are provided with a plurality of tiptoes.

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