CN118311198A

CN118311198A - Expiration analyzer with self-calibration function

Info

Publication number: CN118311198A
Application number: CN202410399356.0A
Authority: CN
Inventors: 高天; 丁旭
Original assignee: Guangxi Rio Tinto Medical Technology Co ltd
Current assignee: Guangxi Rio Tinto Medical Technology Co ltd
Priority date: 2024-04-03
Filing date: 2024-04-03
Publication date: 2024-07-09
Anticipated expiration: 2044-04-03
Also published as: CN118311198B

Abstract

The invention discloses an expiration analyzer with a self-calibration function, and particularly relates to the technical field of expiration gas detection. The invention can effectively separate the gas in the conveying pipe and the newly-called gas by the separating ball, and the gas originally remained in the conveying pipe does not need to be detected by the detecting cavity, so that unnecessary data detection in the early stage can be reduced, thereby greatly reducing the interference of the original gas in the conveying pipe on the newly-called gas and greatly improving the accuracy of the detection data.

Description

Expiration analyzer with self-calibration function

Technical Field

The invention relates to the technical field of expired gas detection, in particular to an expired gas analyzer with a self-calibration function.

Background

The components of the exhaled gas of the human body and the concentration thereof are measured to assist doctors in diagnosing diseases of patients, monitoring disease states, observing treatment effects and the like.

Such as the diagnosis of the patient with helicobacter pylori by exhaling C ₁₃、C₁₄, the diagnosis and monitoring of the airway inflammation by exhaling nitric oxide, the diagnosis of the gastrointestinal disease by exhaling hydrogen, the smoking cessation control by exhaling carbon monoxide, the diagnosis of the liver and kidney disease by exhaling ammonia, etc. The measurement method adopted by different applications is different, and the way of breath sampling is also different.

The device is characterized in that the device comprises a main body, a detection cavity is arranged in the main body, a breathing handle is arranged in the main body, the breathing handle is connected with the detection cavity in the main body through a conveying pipe, so that the device is convenient for different people to use.

When the instrument faces more people and the difference of the heights of the people is large, the length of the conveying pipe needs to be increased to facilitate the use of the instrument, so that the breathing handle can have a larger moving range, and the adaptability of the instrument is improved.

When the instrument is continuously used, the expired air of a user can be remained in the conveying pipeline, indoor air can be mixed in the pipeline, although the original air in the pipeline can be extruded when the next user exhales, when the next user uses, the contact time between the expired air and the residual air in the conveying pipeline is longer, the expired air is easy to mix with the residual air in the pipeline, that is, the front section part of the expired air of the user is influenced by the air in the pipeline, and the initial data detected by the sensor is inaccurate in the initial stage of detection, so that the accuracy of the integral detection is influenced.

Disclosure of Invention

The invention provides an expiration analyzer with a self-calibration function, which aims to solve the problems that: the exhaled air of a user remains in the existing instrument conveying pipeline, and the exhaled air is easy to mix with the residual air in the pipeline, so that detection is affected.

In order to achieve the above purpose, the present invention provides the following technical solutions: the breath analyzer with the self-calibration function comprises an analyzer main machine and a breathing handle, wherein a detection cavity is formed in the analyzer main machine, the breathing handle is communicated with the detection cavity through a conveying pipe, and the conveying pipe is connected with the detection cavity through a three-way connecting structure;

The inside of the breathing handle is provided with a built-in pipe, the inside of the built-in pipe is provided with a separation ball, when the breathing handle blows air, the separation ball slides in the built-in pipe and the conveying pipe, the three-way connecting structure is also provided with a discharge pipe and a detection butt joint pipe, and the detection butt joint pipe is communicated with the detection cavity;

the inside of the three-way connecting structure is provided with a reversing control assembly, when the separation ball does not reach the three-way connecting structure, the discharge pipe is conducted, the blocking of the opposite connection pipe is detected, and when the separation ball reaches the inside of the three-way connecting structure, the reversing control assembly blocks the discharge pipe and conducts the detection opposite connection pipe;

The analyzer host is also provided with a calibrator, the calibrator is provided with a socket, the socket is used for inserting a breathing handle, and the calibrator is used for configuring calibration gas and conveying the calibration gas into the breathing handle to the detection cavity.

In a preferred embodiment, the reversing control assembly is an exhaust plugging groove and a pressure relief valve structure, the exhaust plugging groove is arranged at a position corresponding to the discharge pipe in the three-way connecting structure, the pressure relief valve structure is arranged in the detection butt joint pipe, the discharge pipe is vertically arranged below the three-way connecting structure, the exhaust plugging groove is a groove structure which is adapted to a separation ball, the separation ball slides to the exhaust plugging groove at the top of the discharge pipe after entering the inside of the three-way connecting structure, the discharge pipe is plugged, and the pressure relief valve structure in the butt joint pipe is detected to be conducted.

In a preferred embodiment, the pressure release valve structure is an elastic blocking piece, the elastic blocking piece is a circular elastic piece structure which is adapted to detecting the inner cavity of the butt joint pipe, the elastic piece structure is installed in the detecting butt joint pipe through a fixing frame, the middle part of the elastic blocking piece is fixedly connected with the fixing frame, when the elastic blocking piece is naturally stretched, the detecting butt joint pipe is blocked, and the edge of the elastic blocking piece is conducted when the elastic blocking piece is deformed in a direction away from the three-way connecting structure.

In a preferred embodiment, the discharge pipe is inserted in the three-way connection structure by threads, a delivery port is arranged on the breathing handle, the delivery port is communicated with the built-in pipe, the delivery port is used for delivering the separation ball into the built-in pipe, and a detachable sealing cover is arranged on the delivery port.

In a preferred embodiment, the reversing control assembly comprises a movable tube, a sleeve is arranged in the three-way connecting structure, the movable tube is slidably mounted in the sleeve, the movable tube is arranged on an extension line of the conveying tube, one end of the movable tube, which is close to the conveying tube, is provided with an opening, one end, which is far away from the conveying tube, of the movable tube and the sleeve is provided with a seal, one side bottom, which is close to the seal end, of the movable tube is provided with an exhaust butt joint hole, the exhaust butt joint hole is used for adapting to the exhaust tube, an expiration communication hole is formed in the side wall of the sleeve and is communicated with the detection butt joint tube, an expiration butt joint hole which is mutually adapted to the expiration communication hole is formed in the movable tube, and the expiration butt joint hole and the exhaust butt joint hole are arranged in a staggered manner.

In a preferred embodiment, the inner wall of the closed end of the movable tube is arranged to be attached to the separating ball, the top of the exhaust butt joint hole extends into the hemispherical cavity, the separating ball is attached to the hemispherical cavity when moving to the closed end of the movable tube, the exhaust butt joint hole is plugged, and an elastic piece is arranged between the movable tube and the sleeve and used for providing an elastic force for the movable tube in the approaching direction of the three-way connecting structure.

In a preferred embodiment, a pull wire is arranged on the separation ball, one end of the pull wire, which is far away from the separation ball, is led out from a breathing handle, a miniature rolling machine is arranged on the breathing handle, and one end of the pull wire, which is far away from the separation ball, is connected to a rolling structure of the miniature rolling machine.

In a preferred embodiment, two separation balls are arranged in the breathing handle, one separation ball close to the three-way connecting structure is fixedly connected with the tail end of the stay wire, the other separation ball is penetrated by the stay wire and is in sliding fit with the stay wire, a temporary storage groove is formed in the built-in pipe at a position corresponding to the position led out by the stay wire, the temporary storage groove is a hemispherical cavity attached to the separation ball, a branch is arranged in the breathing handle close to the port, a small air pump is arranged on the branch, a one-way valve is arranged in the built-in pipe, and two ends of the branch extend to positions, located at two ends of the one-way valve, of the built-in pipe respectively.

In a preferred embodiment, the separation ball is of a hollow structure, the middle part of the separation ball is provided with a reinforcing entity along the direction of the stay wire, the reinforcing entity is used for reinforcing the strength of the separation ball in the direction, a deformation cavity is formed between the separation ball and the reinforcing entity, the area of the separation ball corresponding to the deformation cavity is an elastic part, one side of the deformation cavity, which is close to the breathing handle, is provided with an air hole, and the small air pump is of a two-way pump structure.

In a preferred embodiment, a gas configuration box is arranged in the calibrator, the gas configuration box is communicated with the socket, a delivery pipe is fixedly arranged on the gas configuration box and used for delivering the calibration gas into the gas configuration box, the gas configuration box is communicated with the built-in pipe when the breathing handle is inserted into the socket, and the small air pump is started during calibration to convey the calibration gas in the gas configuration box to the detection cavity for calibration detection in a mode that the calibration gas simulates the expiration state of a user.

The invention has the beneficial effects that: the invention can effectively separate the gas in the conveying pipe and the newly-breathed gas by means of the separation ball, can push the separation ball to continuously advance when exhaling into the breathing handle, and the gas originally remained in the conveying pipe does not need to pass through the detection cavity for detection, so that unnecessary data detection in the early stage can be reduced, the whole process can effectively isolate the successive gas, thereby greatly reducing the interference of the original gas in the conveying pipe on the newly-breathed gas, greatly improving the accuracy of detection data, simultaneously, the calibrator is used for proportioning and calibrating the gas to convey the gas into the detection cavity for calibration detection, and the instrument is calibrated and revised, thereby being capable of automatically calibrating and improving the detection precision after the equipment is used for a long time.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure of the breathing handle of the present invention after the disposable mouthpiece is mounted.

Fig. 3 is a non-use state diagram of the apparatus employing one of the commutation control assemblies of the present invention.

Fig. 4 is a schematic structural diagram of the present invention after controlling airflow direction change when the direction change control assembly based on fig. 3 is adopted.

FIG. 5 is a schematic illustration of the cooperation of the respiratory handle and the calibrator of the present invention.

Fig. 6 is a diagram of the evacuation of air from a duct using another reversing control assembly in accordance with the present invention.

Fig. 7 is a view of the use of the apparatus of the present invention using the commutation control assembly of fig. 6.

Fig. 8 is an enlarged view of the portion a of fig. 7 according to the present invention.

Fig. 9 is an enlarged view of the B section structure of fig. 7 according to the present invention.

Fig. 10 is a schematic view of a structure of the present invention after the reversing control assembly based on fig. 6 is used to control the air flow reversing.

Fig. 11 is a schematic view showing the internal structure of the separation ball according to the present invention.

The reference numerals are: 1. an analyzer host; 11. a detection chamber; 2. a respiratory handle; 21. a built-in tube; 22. a disposable mouthpiece; 23. a delivery port; 24. a one-way valve; 25. a small air pump; 26. a dryer; 27. a temporary storage groove; 3. a delivery tube; 4. a calibrator; 41. a gas configuration box; 42. a delivery tube; 43. a socket; 5. a separation ball; 51. a pull wire; 52. reinforcing the entity; 53. a deformation cavity; 54. ventilation holes; 6. a three-way connection structure; 61. a discharge pipe; 62. detecting an abutting pipe; 63. exhausting and plugging the groove; 64. an elastic blocking piece; 65. a sleeve; 66. an exhalation communication hole; 7. a movable tube; 71. an exhaust butt joint hole; 72. an exhalation butt joint hole; 8. a miniature winding machine.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.

Referring to fig. 1 and 2 of the accompanying drawings, an expired air analyzer with self-calibration function comprises an analyzer main body 1 and a breathing handle 2, wherein a detection cavity 11 is arranged in the analyzer main body 1, corresponding detection sensors are arranged in the detection cavity 11, the breathing handle 2 is communicated with the detection cavity 11 through a conveying pipe 3, and a dryer 26 is arranged in the faucet and is used for drying the breathed-in gas, so that the selection of the sensors and the specific arrangement of the analyzer main body 1 do not need to be described too much in the embodiment, unlike the conventional expired air analyzer, the conveying pipe 3 of the embodiment is connected with the detection cavity 11 through a three-way connecting structure 6, and particularly, referring to fig. 3 of the accompanying drawings, a built-in pipe 21 is arranged in the breathing handle 2, the diameter of the built-in pipe 21 is the same as the diameter of the inner wall of the conveying pipe 3, a jack for inserting a disposable mouthpiece 22 is also arranged at the port of the breathing handle 2, a separation ball 5 is arranged in the interior of the built-in pipe 21, and when the user breathes the breathing handle 2, the separation ball 5 is driven by the user, the separation ball 5 is arranged in the breathing handle 2, and the detection ball is connected with the detection pipe 3 through a three-way connecting structure 62, and the detection ball is connected with the detection pipe 61 in a long pipe 61, and the detection pipe is connected with the detection pipe 61;

the inside of the three-way connecting structure 6 is provided with a reversing control component, when the separation ball 5 does not reach the three-way connecting structure 6, the discharge pipe 61 is conducted, the detection butt joint pipe 62 is blocked, when the separation ball 5 reaches the inside of the three-way connecting structure 6, the reversing control component blocks the discharge pipe 61, and the detection butt joint pipe 62 is conducted;

The analyzer host computer 1 is further provided with a calibrator 4, the calibrator 4 is provided with a socket 43, the breathing handle 2 is provided with a plug structure which is mutually spliced with the socket 43, the socket 43 is used for inserting the breathing handle 2, after the use is finished, the breathing handle 2 can be inserted into the socket 43, the breathing handle 2 is connected with the calibrator 4, the calibrator 4 is used for configuring calibration gas, the calibration gas is introduced into the breathing handle 2 and is conveyed to the detection cavity 11, and therefore comparison of data to be detected by the analyzer host computer 1 and known data of standard gas is judged, and the analyzer host computer 1 can be calibrated.

It should be noted that, when the device is used, the breathing handle 2 needs to be removed, referring to fig. 2 of the specification, the disposable mouthpiece 22 is installed at the end of the breathing handle 2, and the separation ball 5 is arranged in the breathing handle 2, and the three-way connection structure 6 is arranged to connect the conveying pipe 3 with the detection cavity 11, so that the separation ball 5 can be pushed to continuously advance when the breathing handle 2 is exhaled, so that the originally residual gas in the conveying pipe 3 can be discharged outwards from the discharge pipe 61, that is, the gas originally remained in the conveying pipe 3 does not need to be detected through the detection cavity 11, the unnecessary data detection in the early stage can be reduced, and when the separation ball 5 reaches the inside of the three-way connection structure 6, that is, after the residual gas in the conveying pipe 3 is emptied, the reversing control assembly discharge pipe 61 is detected, the detection counter-connection pipe 62 is conducted, that the gas in the breathing handle 2 is gradually entered into the detection cavity 11 to be detected, the original residual gas in the conveying pipe 3 can be discharged outwards from the discharge pipe 61, that the original residual gas in the conveying pipe 3 can be greatly disturbed, the original data can be effectively detected, and the accurate data of the original gas can be effectively conveyed.

Referring to fig. 3 and 4 of the specification, this embodiment provides a reversing control assembly, the reversing control assembly is an exhaust plugging groove 63 and a pressure relief valve structure, the exhaust plugging groove 63 is disposed at a position corresponding to a discharge pipe 61 in a three-way connection structure 6, the pressure relief valve structure is disposed in a detection butt pipe 62, the discharge pipe 61 is vertically disposed below the three-way connection structure 6, the exhaust plugging groove 63 is a groove structure adapted to a separation ball 5, referring to fig. 4 of the specification, the separation ball 5 slides to the exhaust plugging groove 63 at the top of the discharge pipe 61 after entering the inside of the three-way connection structure 6, the discharge pipe 61 is plugged, then under the condition that the pressure in the three-way connection structure 6 is increased, the pressure relief valve structure in the butt pipe 62 is detected to be conducted, and then gas exhaled by a subsequent user can flow into a detection cavity 11 and be detected.

The pressure release valve structure may be an elastic blocking piece 64, the elastic blocking piece 64 is a circular elastic piece structure adapted to the inner cavity of the detection butt joint pipe 62, the elastic piece structure is installed in the detection butt joint pipe 62 through a fixing frame, the middle of the elastic blocking piece 64 is fixedly connected with the fixing frame, when the elastic blocking piece 64 is naturally stretched, the detection butt joint pipe 62 is blocked, when the pressure in the three-way connecting structure 6 is increased, the edge of the elastic blocking piece 64 deforms towards the direction away from the three-way connecting structure 6, so that the detection butt joint pipe 62 is conducted, that is, after the separation ball 5 reaches the inside of the three-way connecting structure 6 and the discharge pipe 61 is blocked, the air pressure in the three-way connecting structure 6 is increased, so that the elastic blocking piece 64 deforms and the detection butt joint pipe 62 is conducted.

In this embodiment, the drain pipe 61 may be detachably disposed, specifically, referring to fig. 4 of the specification, the drain pipe 61 is screwed into the three-way connection structure 6, referring to fig. 3 of the specification, the breathing handle 2 is provided with the dispensing port 23, the dispensing port 23 communicates with the internal pipe 21, the dispensing port 23 is used for dispensing the partition ball 5 into the internal pipe 21, and in order to ensure the tightness of the breathing handle 2, the dispensing port 23 is provided with a detachable cover, and after one use, the drain pipe 61 may be removed, the partition ball 5 may be taken out, and the partition ball 5 may be re-dispensed from the dispensing port 23 into the internal pipe 21 for the next use.

Referring to fig. 5 to 10 of the accompanying drawings, the present embodiment further provides another reversing control assembly, specifically, the reversing control assembly includes a movable tube 7, a sleeve 65 is disposed in the three-way connection structure 6, the movable tube 7 is slidably mounted in the sleeve 65, the movable tube 7 is disposed on an extension line of a fixed portion of the inside of the three-way connection structure 6, the movable tube 7 is disposed as an opening at one end of the movable tube 7 close to the conveying tube 3, the movable tube 7 and one end of the sleeve 65 away from the conveying tube 3 are disposed as a seal, an exhaust butt joint hole 71 is disposed at a bottom of a side of the movable tube 7 close to the seal end, the exhaust butt joint hole 71 is adapted to be fitted with the exhaust tube 61, an exhalation connecting hole 66 is disposed on a side wall of the sleeve 65, the exhalation connecting hole 66 is communicated with the detection butt joint tube 62, an exhalation butt joint hole 72 mutually adapted to the exhalation connecting hole 66 is disposed on the movable tube 7, the exhalation butt joint hole 72 and the exhaust butt joint hole 71 are disposed in a dislocation manner, the movable tube 7 is disposed by sliding in the sleeve 65 to change positions, when the exhaust butt joint hole 71 is butted with the exhaust tube 61, the movable tube 7 is butted against the exhalation connecting hole 66, the exhalation connecting hole 66 is connected with the exhaust connecting hole 61, the conveying tube 3 is connected with the exhaust connecting hole 61, the detection butt joint hole 66 and the exhalation connecting hole 66 is connected with the detection butt joint hole 66, and the exhalation connecting hole 72.

Further, the inner wall of the closed end of the movable tube 7 is set to be attached to the hemispherical cavity with the separation ball 5, the top of the exhaust butt joint hole 71 extends into the hemispherical cavity, the separation ball 5 is attached to the hemispherical cavity when moving to the closed end of the movable tube 7, the exhaust butt joint hole 71 is plugged, an elastic piece is arranged between the movable tube 7 and the sleeve 65 and used for providing an elastic force for the movable tube 7 in the approaching direction of the three-way connecting structure 6, the elastic piece is preferably a light spring, and the elastic force only needs to ensure that the movable tube 7 can be pushed to approach the conveying tube 3 and butt joint with the conveying tube 3 when the air pressure in the conveying tube 3 is normal atmospheric pressure, and the movable tube 7 can be pushed to move when the air pressure in the conveying tube 3 is increased due to the closing of the separation ball 5 to the exhaust butt joint hole 71.

Under the action of the elastic member, when a user exhales initially, the conveying pipe 3 is communicated with the discharging pipe 61, referring to fig. 6 of the specification, the old gas in the conveying pipe 3 is normally discharged from the discharging pipe 61 by the movement of the separation ball 5, the pressure difference between the separation ball 5 and the movable pipe 7 and the normal atmospheric pressure are small, the movable pipe 7 is in a butting state with the conveying pipe 3 until the separation ball 5 moves to the closed end of the movable pipe 7 (the old gas is discharged), the exhaust butting hole 71 is blocked, at the moment, the new gas which is breathed in cannot be discharged, and then the internal pressure of the movable pipe 7 is increased, so that the movable pipe 7 is pushed to move until the expiration butting hole 72 is butted with the expiration connecting hole 66, referring to fig. 9 of the specification, the gas pressure in the movable pipe 7 is reduced after butting, the elastic member rebounds until the balance is reached, and then a stable flow rate can be kept for adapting to the stable detection of the detection cavity 11, after the detection is finished, the expiration in the conveying pipe 3 is stopped, and the pressure in the conveying pipe 3 is restored, so that the movable pipe 7 can reset.

In the above embodiment, the separation ball 5 finally falls into the movable tube 7 and is not easy to be taken out, so the present embodiment also provides another recycling mode of the separation ball 5, specifically, referring to fig. 5 and 9 of the specification, a pull wire 51 is disposed on the separation ball 5, one end of the pull wire 51 away from the separation ball 5 is led out from the breathing handle 2, a simple pull ring can be disposed outside the pull wire 51, the separation ball 5 can be pulled back into the breathing handle 2 by hand pulling, the method has lower cost, but is more troublesome, therefore, the micro-coiler 8 can be mounted on the breathing handle 2, one end of the pull wire 51 away from the separation ball 5 is connected to the coiler structure of the micro-coiler 8, when the separation ball 5 slides towards the tee joint structure 6, the pull wire 51 can be automatically pulled out, and after the use, the micro-coiler 8 can be started to coil the pull wire 51, and the separation ball 5 can be pulled back.

Since no new gas enters the delivery tube 3 after the user finishes using the device and no longer exhales, the expired gas of the user can be reserved, and the part of gas can not enter the detection cavity 11 for detection, which is equivalent to that the gas expired by the user at one time can not enter the detection cavity 11 completely, but in order to ensure the detection accuracy, the user is required to exhale more gas, and the user with the affected vital capacity is relatively difficult to exhale, therefore, the embodiment also provides the following technical scheme that the reserved gas in the delivery tube 3 is pushed to enter the detection cavity 11 for detection after the expiration is finished, specifically, referring to the accompanying drawings of the specification 5 and fig. 10, two separation balls 5 are arranged in the breathing handle 2, one of the separation balls 5 near the three-way connection structure 6 is fixedly connected with the tail end of the pull wire 51, the separation ball 5 is called as the previous separation ball 5, the other separation ball 5 is penetrated by the pull wire 51 and is in sliding fit with the pull wire 51, the separation ball 5 is called as the next separation ball 5, a temporary storage groove 27 is arranged in the built-in pipe 21 corresponding to the position led out by the pull wire 51, the temporary storage groove 27 is a hemispherical cavity attached to the separation ball 5, a branch is arranged in the breathing handle 2 near a port, a small air pump 25 is arranged on the branch, a check valve 24 is arranged in the built-in pipe 21, two ends of the branch extend to positions of the built-in pipe 21 at two ends of the check valve 24 respectively, and the conducting direction of the check valve 24 is the flowing direction from the port of the breathing handle 2 to the conveying pipe 3, and the opposite is the reverse stopping direction.

It should be noted that, when the user continuously exhales, the damping effect in the channel from the conveying pipe 3 to the detection cavity 11 is affected, a certain pressure is provided in the conveying pipe 3, the pressure pushes the next separation ball 5 into the temporary storage groove 27, and is not suitable to be separated until the expiration is finished, referring to fig. 8 of the specification, the pressure in the conveying pipe 3 is temporarily reduced, the separation ball 5 can be separated from the temporary storage groove 27 and enter the built-in pipe 21, then the small air pump 25 can be started, so that the small air pump 25 blows into the conveying pipe 3, the continuous expiration process is simulated, the separation ball 5 enters the built-in pipe 21 at this time, the blocking is formed between the reserved breathed-in gas in the conveying pipe 3 and the blown-in gas of the small air pump 25, the same working process as the previous separation ball 5, and the next separation ball 5 is gradually approaching the three-way connecting structure 6 under the continuous effect of the small air pump 25, and further the gas simulation expiration process remaining in the conveying pipe 3 is continuously conveyed into the detection cavity 11, so that the full detection of all breathed-out gas of the user is realized, thereby reducing the requirement on the user's volume, and more people are satisfied.

In the above embodiment, the mode of only adopting air pressure to tie the latter separation ball 5 in the temporary storage groove 27 has lower cost, but has poorer sensitivity, so that a releaser can be arranged in the temporary storage groove 27, for example, an electric clamp is arranged in the temporary storage groove 27, when the electric clamp is required, the separation ball 5 can be released by loosening the latter separation ball 5, meanwhile, a corresponding key and a corresponding switch can be arranged on the breathing handle 2 to control the small air pump 25, the micro-coiler 8 and the releaser, the operation can be more accurate and stable by a user, and after the use is finished, the micro-coiler 8 can pull back the former separation ball 5, so that the latter separation ball 5 can also be pulled back, and the latter separation ball 5 enters the temporary storage groove 27.

Further, referring to fig. 11 of the specification, the separation ball 5 is of a hollow structure, the middle part of the separation ball 5 is provided with a reinforcing entity 52 along the direction of the pull wire 51, the reinforcing entity 52 is used for reinforcing the strength of the separation ball 5 in the direction, deformation of the separation ball 5 in the direction of the pull wire 51 is reduced, a deformation cavity 53 is formed between the separation ball 5 and the reinforcing entity 52, an area of the separation ball 5 corresponding to the deformation cavity 53 is an elastic part, namely, a matching area of the separation ball 5 and the inner wall of the conveying pipe 3 is a deformable area, one side of the deformation cavity 53 close to the breathing handle 2 is provided with an air hole 54, and the small air pump 25 is of a two-way pump structure.

It should be noted that when the two separation balls 5 are expired into the conveying pipe 3, that is, the two separation balls 5 are pushed to move into the three-way connecting structure 6, air flows enter the deformation cavity 53 from the air holes 54, so that the separation balls 5 are slightly expanded, damping between the separation balls 5 and the conveying pipe 3 can be ensured, and effective separation is formed, when the two separation balls 5 are recovered, the air can be reversely pumped by the small air pump 25, at the moment, the one-way valve 24 can be replaced by the controllable valve, that is, when the small air pump 25 is pumped, the controllable valve is closed, the conveying pipe 3 is completely pumped by the small air pump 25, thereby facilitating recovery of the two separation balls 5, meanwhile, when the separation balls 5 are pumped, negative pressure is formed in a side area of the separation balls 5 close to the breathing handle 2, when the separation balls 5 are recovered, the air can be pumped from the deformation cavity 53 through the air holes 54, so that the outer wall of the separation balls 5 are inwards deformed, that the resistance between the separation balls 5 and the conveying pipe 3 can be reduced, and recovery of the separation balls 5 is smoother.

Referring to fig. 5 of the specification, a gas configuration box 41 is arranged in the calibrator 4, the gas configuration box 41 is communicated with a socket 43, a delivery pipe 42 is fixedly installed on the gas configuration box 41, the delivery pipe 42 is used for delivering calibration gas into the gas configuration box 41, the gas configuration box 41 is communicated with a built-in pipe 21 when the breathing handle 2 is plugged into the socket 43, the small air pump 25 is started during calibration, the calibration gas in the gas configuration box 41 simulates the exhalation state of a user and is conveyed into the detection cavity 11 for calibration detection, for example, the equipment is used for detecting the concentration of nitric oxide in the exhaled gas, the calibration gas is the gas containing nitric oxide in a simulated proportion, the concentration of nitric oxide in the gas is known, after the detection, the instrument compares the detection data with the concentration data of the known calibration gas, and can calibrate and revise the instrument after the difference is known, and further after the equipment is used for a long time, the detection precision can be automatically calibrated.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims

1. An expired air analyzer with self-calibration function, characterized in that: the device comprises an analyzer main machine (1) and a breathing handle (2), wherein a detection cavity (11) is formed in the analyzer main machine (1), the breathing handle (2) is communicated with the detection cavity (11) through a conveying pipe (3), and the conveying pipe (3) is connected with the detection cavity (11) through a three-way connecting structure (6);

The inside of the breathing handle (2) is provided with a built-in pipe (21), the inside of the built-in pipe (21) is provided with a separation ball (5), when the breathing handle (2) is blown, the separation ball (5) slides in the inside of the built-in pipe (21) and the conveying pipe (3), the three-way connecting structure (6) is also provided with a discharge pipe (61) and a detection butt joint pipe (62), and the detection butt joint pipe (62) is communicated with the detection cavity (11);

The inside of the three-way connecting structure (6) is provided with a reversing control component, when the separation ball (5) does not reach the three-way connecting structure (6), the discharge pipe (61) is conducted, the blocking of the opposite connection pipe (62) is detected, and when the separation ball (5) reaches the inside of the three-way connecting structure (6), the reversing control component blocks the discharge pipe (61) and conducts the detection opposite connection pipe (62);

the analyzer is characterized in that a calibrator (4) is further arranged on the analyzer host machine (1), a socket (43) is arranged on the calibrator (4), the socket (43) is used for inserting the breathing handle (2), and the calibrator (4) is used for configuring calibration gas and introducing the calibration gas into the breathing handle (2) to convey the calibration gas into the detection cavity (11).

2. The breath analyzer with self-calibrating function according to claim 1, wherein: the reversing control assembly is of an exhaust blocking groove (63) and a pressure relief valve structure, the exhaust blocking groove (63) is arranged at the position corresponding to the discharge pipe (61) in the three-way connecting structure (6), the pressure relief valve structure is arranged in the detection butt pipe (62), the discharge pipe (61) is vertically arranged below the three-way connecting structure (6), the exhaust blocking groove (63) is of a groove structure which is adaptive to the separation ball (5), the separation ball (5) enters the three-way connecting structure (6) and then slides to the exhaust blocking groove (63) at the top of the discharge pipe (61), the discharge pipe (61) is blocked, and the pressure relief valve structure in the butt pipe (62) is detected to be conducted.

3. The breath analyzer with self-calibration function of claim 2, wherein: the pressure release valve structure is an elastic sealing piece (64), the elastic sealing piece (64) is a circular elastic piece structure which is adaptive to the inner cavity of the detection butt joint pipe (62), the elastic piece structure is installed in the detection butt joint pipe (62) through a fixing frame, the middle part of the elastic sealing piece (64) is fixedly connected with the fixing frame, when the elastic sealing piece (64) naturally stretches, the detection butt joint pipe (62) is sealed, and the edge of the elastic sealing piece (64) is detected to be conducted when the edge of the elastic sealing piece (64) is deformed in the direction away from the tee joint connection structure (6).

4. A breath analyzer with self-calibrating function according to claim 3, wherein: the utility model discloses a tee bend connection structure, including breathing handle (2), discharge tube (61) screw thread cartridge is in tee bend connection structure (6), be provided with on breathing handle (2) and put in mouth (23), put in mouth (23) and built-in pipe (21) intercommunication, put in mouth (23) are used for putting in separating ball (5) to built-in pipe (21), are provided with the detachable closing cap on putting in mouth (23).

5. The breath analyzer with self-calibrating function according to claim 1, wherein: the reversing control assembly comprises a movable tube (7), a sleeve (65) is arranged in the three-way connecting structure (6), the movable tube (7) is slidably mounted in the sleeve (65), the movable tube (7) is arranged on an extension line of the conveying tube (3), one end, close to the conveying tube (3), of the movable tube (7) is arranged to be an opening, one end, far away from the conveying tube (3), of the movable tube (7) and the sleeve (65) is arranged to be a seal, an exhaust butt joint hole (71) is arranged at the bottom of one side, close to the seal, of the movable tube (7), the exhaust butt joint hole (71) is used for being matched with the exhaust tube (61), an expiration communication hole (66) is formed in the side wall of the sleeve (65), the expiration communication hole (66) is communicated with the detection butt joint tube (62), and an expiration butt joint hole (72) which is mutually matched with the expiration communication hole (66) is formed in the movable tube (7), and the exhaust butt joint hole (72) and the exhaust butt joint hole (71) are arranged in a dislocation mode.

6. The breath analyzer with self-calibrating function according to claim 5, wherein: the inner wall of the closed end of the movable pipe (7) is arranged to be attached to the hemispherical cavity with the separation ball (5), the top of the exhaust butt joint hole (71) extends into the hemispherical cavity, the separation ball (5) is attached to the hemispherical cavity when moving to the closed end of the movable pipe (7) and seals the exhaust butt joint hole (71), an elastic piece is arranged between the movable pipe (7) and the sleeve (65), and the elastic piece is used for providing an elastic force to the movable pipe (7) in the direction close to the three-way connecting structure (6).

7. The breath analyzer with self-calibrating function according to claim 6, wherein: be provided with on separating ball (5) and act as go-between (51), the one end that separates ball (5) was kept away from to act as go-between (51) is drawn forth from breathing handle (2), install miniature roll-up machine (8) on breathing handle (2), the one end that separates ball (5) is kept away from to act as go-between (51) is connected on the roll-up structure of miniature roll-up machine (8).

8. The breath analyzer with self-calibrating function according to claim 7, wherein: two separation balls (5) are arranged in the breathing handle (2), one separation ball (5) close to the tee joint connecting structure (6) is fixedly connected with the tail end of the pull wire (51), the other separation ball (5) is penetrated by the pull wire (51) and is in sliding fit with the pull wire (51), a temporary storage groove (27) is formed in the built-in pipe (21) at the position corresponding to the position led out by the pull wire (51), the temporary storage groove (27) is a hemispherical cavity attached to the separation ball (5), a branch is arranged in the breathing handle (2) close to the port, a small air pump (25) is arranged on the branch, a one-way valve (24) is arranged in the built-in pipe (21), and two ends of the branch extend to the positions, located at two ends of the one-way valve (24), of the built-in pipe (21) respectively.

9. The breath analyzer with self-calibrating function according to claim 8, wherein: the separation ball (5) is of a hollow structure, the middle part of the separation ball (5) is provided with a reinforcing entity (52) along the direction of a stay wire (51), the reinforcing entity (52) is used for reinforcing the strength of the separation ball (5) in the direction, a deformation cavity (53) is formed between the separation ball (5) and the reinforcing entity (52), the area of the separation ball (5) corresponding to the deformation cavity (53) is an elastic part, one side of the deformation cavity (53) close to the breathing handle (2) is provided with an air vent (54), and the small air pump (25) is of a two-way pump structure.

10. The breath analyzer with self-calibration function according to claim 4 or 9, wherein: the inside of calibrator (4) is provided with gas configuration box (41), gas configuration box (41) and socket (43) intercommunication, fixed mounting is put in pipe (42) on gas configuration box (41), put in pipe (42) and be used for putting in this calibration gas to gas configuration box (41), during breathing handle (2) and socket (43) cartridge time gas configuration box (41) and built-in pipe (21) intercommunication, during the calibration, small-size air pump (25) are opened, carry the calibration gas in gas configuration box (41) to the expiration state of simulation user in detecting chamber (11) and calibrate and detect.