CN117918822A

CN117918822A - Nose-lung physicochemical analyzer and nose-lung physicochemical analysis system

Info

Publication number: CN117918822A
Application number: CN202410221939.4A
Authority: CN
Inventors: 宋昱; 朱丽
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2024-02-28
Filing date: 2024-02-28
Publication date: 2024-04-26

Abstract

The application discloses a nose-lung physical and chemical analyzer and a nose-lung physical and chemical analysis system, wherein the nose-lung physical and chemical analyzer comprises a shell, and a data acquisition unit and a chemical index detection module are arranged in the shell; the data acquisition unit comprises a differential pressure sensor, and a first air inlet and a second air inlet which are communicated with the differential pressure sensor are arranged on the shell; the chemical index detection module comprises an air cavity and a plurality of detection sensors which are arranged in the air cavity and aim at different chemical components, and a gas component detection interface and an air inlet and outlet hole which are communicated with the chemical index detection module are arranged on the shell; in the application, the detection unit of physical index and chemical index is integrated in the shell of the nose-lung physical and chemical analyzer, so that the patient can complete the detection of physical and chemical index at one time, the operation of medical staff is simplified, and the medical experience of the patient is improved.

Description

Nose-lung physicochemical analyzer and nose-lung physicochemical analysis system

Technical Field

The application relates to the field of medical equipment, in particular to a nose-lung physicochemical analyzer and a nose-lung physicochemical analysis system.

Background

There are a nose function detector and a lung function detector on the market at present, which are respectively used for detecting indexes of an upper airway and a lower airway, so that the evaluation of the nose function and the evaluation of the lung function are realized. However, the existing nose function detector or lung function detector only detects physical indexes (such as airflow velocity and the like) of the nose function or the lung function, but cannot detect chemical indexes (such as components of exhaled air of a patient) of the nose function or the lung function, so that the nose function detector or the lung function detector has single function, and the patient needs to detect the physical indexes and the chemical indexes of the nose function or the lung function for multiple times, so that the operation of medical staff is complicated, and the medical experience of the patient is poor.

Disclosure of Invention

The application provides a nose-lung physical and chemical analyzer and a nose-lung physical and chemical analysis system, wherein a detection unit for physical indexes and chemical indexes is integrated in a shell of the nose-lung physical and chemical analyzer, so that a patient can complete the detection of the physical and chemical indexes at one time, the operation of medical staff is simplified, and the hospitalizing experience of the patient is improved.

The application provides a nose-lung physicochemical analyzer, which comprises a shell, wherein a data acquisition unit and a chemical index detection module are arranged in the shell;

the data acquisition unit comprises a differential pressure sensor, and a first air inlet and a second air inlet which are communicated with the differential pressure sensor are arranged on the shell; in the use state, the first air inlet hole and the second air inlet hole are communicated with a first air flow output pipeline and a second air flow output pipeline on two sides of a resistance net on the gas collecting mask;

The chemical index detection module comprises an air cavity and a plurality of detection sensors which are arranged in the air cavity and aim at different chemical components, and a gas component detection interface and an air inlet and outlet hole which are communicated with the chemical index detection module are arranged on the shell; in the use state, the gas component detection interface is connected with the main gas flow output port of the gas collecting mask through a pipeline.

Preferably, the data acquisition unit further comprises a central processor, and the central processor is connected with a temperature and humidity sensor on the gas collecting surface cover through a temperature and humidity signal line interface on the shell.

Preferably, the data acquisition unit further comprises an air pressure sensor, and the air pressure sensor is communicated with the outside through a third air inlet hole on the shell.

Preferably, a data processing unit is arranged in the shell, a data display window is arranged on the shell, and the data display window is connected with the data processing unit;

the data processing unit is respectively connected with the data output interface of the data acquisition unit and the data output interface of the chemical index detection module.

Preferably, the casing is further provided with an operation mode selection key and an operation mode display window which are connected with each other, and the operation mode display window and the operation mode selection key are connected with the data processing unit.

The application also provides a nose-lung physicochemical analysis system, which comprises the nose-lung physicochemical analyzer and the gas collecting mask;

The gas collecting mask comprises an air flow collector, a resistance net is arranged on a main air flow output port of the air flow collector, and a first air flow output pipeline and a second air flow output pipeline are respectively arranged on two sides of the resistance net.

Preferably, a temperature and humidity sensor or a separate temperature and humidity sensor is provided on the inner side of the middle part of the airflow collector.

Preferably, the end part of the main air flow output port is provided with an annular slot, a resistance net converter is arranged in the slot, and a plurality of resistance nets with different resistances are arranged on the body of the resistance net converter at intervals.

Preferably, the air flow collector is provided with an operation window corresponding to the position of the nose, and the body of the operation window is provided with a medicine feeding hole;

In the inactive state, the administration hole is sealed by the sealing member.

Preferably, the periphery of the operation window is provided with a clamping groove matched with the drug feeder.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a diagram showing the outline structure of a nose-lung physical and chemical analyzer according to the present application;

FIG. 2 is a block diagram of a nose-lung physicochemical analysis system provided by the present application;

FIG. 3 is a block diagram of a gas collecting mask provided by the present application;

FIG. 4 is a block diagram of a resistance network converter provided by the present application;

fig. 5 is a structural view of an operation window provided by the present application.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

The application provides a nose-lung physical and chemical analyzer and a nose-lung physical and chemical analysis system, wherein a detection unit for physical indexes and chemical indexes is integrated in a shell of the nose-lung physical and chemical analyzer, so that a patient can complete the detection of the physical and chemical indexes at one time, the operation of medical staff is simplified, and the hospitalizing experience of the patient is improved. The nose-lung physical and chemical analyzer of the application is also provided with a temperature and humidity detection function for further evaluating nose and lung diseases. The nose-lung physical and chemical analyzer is internally provided with a data processing unit, and the collected information is imaged and displayed, so that medical staff can intuitively observe the detection condition of a patient. In addition, the integration of the nose function and the lung function detection is realized through the resistance net converter on the gas collecting mask, so that the operation of medical staff is simplified under the condition of simultaneous detection of the nose function and the lung function; on the basis, the data processing unit calculates and displays the more practical evaluation results by combining the nasal function detection and the lung function detection results, so that a doctor is prevented from acquiring a targeted evaluation result after finishing the direct detection results according to experience. At the same time, the operating window on the gas collecting mask provides the possibility for physical/pharmaceutical stimulation of the nasal cavity.

As shown in fig. 2, the nose-lung physicochemical analysis system provided by the present application includes a nose-lung physicochemical analyzer 200 and a gas collecting mask 100.

As shown in fig. 1 and 2, the nose-lung physicochemical analyzer 200 includes a housing 210, and a unified power supply unit 220, a data acquisition unit 250, and a chemical index detection module 240 are provided in the housing 210. The data collection unit 250 includes a differential pressure sensor 2503, and a first air intake hole 2505 and a second air intake hole 2506 communicating with the differential pressure sensor 2503 are provided on the housing 210. The chemical index detection module 240 includes an air cavity and a plurality of detection sensors for different chemical components (such as nitric oxide, gas concentration of carbon dioxide, etc.) disposed in the air cavity, and a gas component detection interface 2401 and an air inlet and outlet 2402 which are communicated with the chemical index detection module 240 are disposed on the housing 210.

As shown in fig. 2 and 3, the gas collecting mask 100 includes a gas flow collector 20. The airflow collector 20 is a cavity with two open ends, one end of the airflow collector surrounds the mouth and nose parts of the face of the patient, and the other end of the airflow collector is used as an inlet and an outlet of airflow. In the embodiment shown in fig. 2, the shape of the portion of the airflow collector 20 close to the face matches the shape of the face, and the portion away from the face is tubular, so as to smooth and stabilize the airflow, and facilitate airflow detection.

The main air flow outlet 21 (the end far from the face) of the air flow collector 20 is provided with a resistance net, and two sides of the resistance net are respectively provided with a first air flow output pipeline 90 and a second air flow output pipeline 110 for providing air pressure on the front side and the rear side of the resistance net for the nose-lung physical and chemical analyzer so as to calculate the pressure difference.

In use, the first air inlet 2505 and the second air inlet 2506 are respectively in communication with the first air flow output line 90 and the second air flow output line 110 on the air collecting mask 100, and the gas component detecting interface 2401 is connected to the main air flow output port 21 of the air collecting mask 100 through a pipe (e.g., a coarse threaded pipe), whereby the pressure difference across the resistance net is calculated by the pressure difference sensor 2503, and the flow rate is calculated. The gas chamber of the chemical index detection module 240 receives the gas flow exhaled by the patient, so as to detect chemical components in the gas flow, and the detected gas is discharged out of the housing 210 through the gas inlet and outlet holes 2402.

Preferably, as shown in fig. 1 and 2, the data acquisition unit further includes a Central Processing Unit (CPU) 2502, and the central processing unit 2502 is configured to acquire data (e.g., pressure difference information) in the data acquisition unit 250 and output the data through the data output interface. As shown in fig. 2 and 3, a temperature and humidity sensor (shown as a temperature and humidity sensor 80 in fig. 2, on the inner side of the tubular portion) or a separate temperature sensor and humidity sensor is provided on the inner side of the middle portion of the airflow collector 20 for detecting the temperature and humidity of the airflow within the airflow collector 20. In use, the central processor 2502 is connected to the temperature and humidity sensor on the gas collecting mask 100 through the temperature and humidity signal line interface 2507 on the housing 210, thereby collecting temperature and humidity information of the patient's air flow.

Preferably, the data collection unit 250 further includes a barometric pressure sensor 2501, and the barometric pressure sensor 2501 communicates with the outside through a third air inlet hole 2504 on the housing 210, whereby the barometric pressure sensor 2501 collects barometric pressure of the atmosphere, which barometric pressure information is used to correct for an influence of the outside environment (e.g., weather) on the pressure difference.

Preferably, the data processing unit 230 is disposed in the housing 210, and the data display window 2101 is disposed on the housing 210, and the data display window 2101 is connected to the data processing unit 230. The data processing unit 230 is respectively connected with a data output interface of the data acquisition unit 250 and a data output interface of the chemical index detection module 240.

As an embodiment, the data processing unit 230 is configured to perform preliminary data processing on the pressure difference information, the temperature and humidity information of the pressure difference sensor 2503 transmitted by the central processor 2502 and the detection information transmitted by the chemical indicator detection module 240, and includes combining these parameters with time to form a time-varying curve, for example, calculating a flow rate according to the pressure difference information, forming a flow-time curve, obtaining peak flow rates of inhalation and exhalation according to the pressure difference information during the respiratory guidance process, and taking an area obtained according to the flow-time curve calculation as the vital capacity; forming a temperature and humidity-time curve according to the obtained temperature and humidity information; forming a chemical index-time curve according to the obtained chemical index; a gas concentration-time curve is formed from the gas concentration obtained by the chemical index detection module, and so on.

Since there is a certain relationship between the nasal function and the pulmonary function of the patient, the evaluation result cannot be directly obtained according to the individual nasal function and pulmonary function detection results. For example, for patients with different weights, ages, and heights, their experiences and symptoms are different although they have the same nasal ventilation test result, so that the nasal function test result alone cannot directly reflect their real nasal function symptoms, and it is necessary to combine lung functions corresponding to weights, ages, heights, or the like to obtain an evaluation result reflecting the real condition of the patient. Based on this, in the present application, preferably, the data processing unit 230 further processes the data in combination with the corresponding nasal function detection result and lung function detection result, to obtain a more accurate evaluation result. For example, the ratio of the peak flow rate of the nasal breathing to the peak flow rate of the oral breathing is calculated, and if the ratio is greater than a threshold value, this means that the nasal function of the patient is normal, otherwise the nasal function of the patient is abnormal, thereby correcting the nasal function index by the pulmonary function index.

As an embodiment, the data processing unit 230 employs an 80C51 single-chip microcomputer.

Preferably, as shown in fig. 1 and 2, the casing 210 is further provided with a data communication interface 2104, and the data communication interface 2104 is connected with the data processing unit 230, so as to uniformly upload and store data processing results obtained by the data processing unit 230 to an upper computer.

Preferably, as shown in fig. 2 and 3, the end of the main air flow outlet 21 is provided with an annular slot, a resistance net converter 30 is arranged in the slot, a plurality of resistance nets with different resistances are arranged on the body of the resistance net converter 30 at intervals, and in use, the resistance net covered on the main air flow outlet 21 is switched by pushing the resistance net converter 30.

As shown in fig. 4, as an embodiment, a first resistance net 32 for lung function detection and a second resistance net 33 for nose function detection are provided on a body 31 of the resistance net converter 30 at intervals. The mesh of the first resistance net 32 is thinner and the metal net wires are thinner than the second resistance net 33.

Preferably, the sealing strips which are in butt joint with the resistance net converter 30 are arranged on the slots, so that the slots are free from air leakage, and the detection accuracy is ensured.

Upon lung function detection, the resistance mesh transducer 30 is pushed so that the first resistance mesh 32 covers the port. Upon nasal function detection, the resistive mesh transducer 30 is pushed so that the second resistive mesh 33 covers the port. Thereby effecting a switching of the resistance net.

Accordingly, as shown in fig. 1 and 2, the casing 210 is further provided with a button area 2103 and an operation mode display window 2102 which are connected to each other, and the operation mode display window 2102 and the button area 2103 are connected to the data processing unit 230. Specifically, as shown in fig. 1, the button area 2103 is provided with a switch key 2106, a plurality of selection keys 2105, and a setting knob 2107, the selection keys 2105 being used to select a mode of guiding breathing, such as calm breathing, forced breathing, and the like. The setting knob 2107 is used to set a detection mode, e.g., nasal function detection, pulmonary function detection.

On the basis of the above, as shown in fig. 1 and 2, the airflow catcher 20 is provided with an operation window 50 corresponding to the position of the nose. As shown in fig. 5, the body 54 of the operation window 50 is provided with a medicine feed hole 53. In the inactive state, the administration hole 53 is sealed by the seal 52. If nasal administration or physical stimulation is desired, seal 52 is torn off, the applicator is positioned on body 54, and the administration tube is threaded through air flow collector 20 from the dispensing orifice 53 and directed to the nostril of the patient.

Preferably, the periphery of the operation window 50 is provided with a clamping groove 51 matched with the medicine feeder, and the medicine feeder is clamped with the clamping groove 51 to realize the positioning of the medicine feeder and the body 54.

Preferably, the aperture of the administration hole 53 is slightly smaller than the outer diameter of the administration tube so that the two are in transition fit, ensuring the air tightness of the administration process.

Preferably, the air bag 10 is arranged on the port of the air flow collector 20 near the face, and the air bag 10 is provided with an air injection hole 40. The outer surface of the balloon 10 is secured with a plurality of attachment points 60 for securing the ends of the bungee cords 70.

When the gas collecting mask is used, the elastic rope 70 is wound around the head and neck of a patient to position the mask, then a proper amount of gas is injected into the air bag 10 through the gas injection hole 40 by using a syringe, and the air bag is attached to the face after being inflated, so that the face and the mask are sealed. The design of the air bag enables the mask to be suitable for patients with different facial shapes and facial sizes, and the application range is improved.

The application integrates structures such as air flow collection, resistance nets with different resistances, temperature and humidity sensors, administration operation windows, pressure collecting pipes and the like on the same air collecting mask, can realize comprehensive data collection of physical and chemical properties of air flow through the mouth and the nose, and simultaneously the operation windows provide possibility for physical/drug stimulation of the nasal cavity (for example, in the detection of allergic rhinitis, one term is called a nose excitation test, and the change of the nasal air flow is detected after allergen stimulation is actually given in the nasal cavity).

While certain specific embodiments of the application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.

Claims

1. The nose-lung physical and chemical analyzer is characterized by comprising a shell, wherein a data acquisition unit and a chemical index detection module are arranged in the shell;

The data acquisition unit comprises a differential pressure sensor, and a first air inlet and a second air inlet which are communicated with the differential pressure sensor are arranged on the shell; in a use state, the first air inlet hole and the second air inlet hole are communicated with a first air flow output pipeline and a second air flow output pipeline on two sides of a resistance net on the air collecting mask;

The chemical index detection module comprises an air cavity and a plurality of detection sensors which are arranged in the air cavity and aim at different chemical components, and a gas component detection interface and an air inlet and outlet hole which are communicated with the chemical index detection module are arranged on the shell; in the use state, the gas component detection interface is connected with a main gas flow output port of the gas collecting mask through a pipeline.

2. The nose-lung physicochemical analyzer of claim 1, wherein the data acquisition unit further comprises a central processor, the central processor being connected to a temperature and humidity sensor on the gas collection mask through a temperature and humidity signal line interface on the housing.

3. The nose-lung physicochemical analyzer of claim 1 or 2, wherein the data acquisition unit further comprises an air pressure sensor, the air pressure sensor being in communication with the outside through a third air inlet hole on the housing.

4. A nose-lung physicochemical analyzer according to claim 3, wherein a data processing unit is provided in the housing, a data display window is provided on the housing, and the data display window is connected with the data processing unit;

5. The nose-lung physicochemical analyzer of claim 4, wherein the housing is further provided with an operation mode selection key and an operation mode display window which are connected to each other, the operation mode display window and the operation mode selection key being connected to the data processing unit.

6. A nasal-pulmonary physicochemical analysis system comprising a nasal-pulmonary physicochemical analyzer and an air-collecting mask according to claims 1-5;

7. The system according to claim 6, wherein the air flow collector is provided with a temperature and humidity sensor or a separate temperature and humidity sensor on the inner side of the middle part.

8. The nasal-pulmonary physicochemical analysis system of claim 6, wherein the end of the main air flow outlet is provided with an annular slot, a resistance network converter is arranged in the slot, and a plurality of resistance networks with different resistances are arranged on the body of the resistance network converter at intervals.

9. The nose-lung physicochemical analysis system of claim 7 or 8, wherein the airflow collector is provided with an operation window corresponding to the nose position, and the body of the operation window is provided with a drug administration hole;

in the non-operating state, the administration hole is sealed by a sealing member.

10. The nasal-pulmonary physicochemical analysis system of claim 9, wherein the periphery of the operating window is provided with a slot that mates with the applicator.