Expiration sampling device and detection system

Abstract

The utility model provides an expiration sampling device and a detection system, and relates to the technical field of detection devices. The expiration sampling device comprises a sampling end, a pipeline assembly and a joint end, the sampling end comprises a sampling head and a cavity part, one end of the sampling head is communicated with the cavity part, and the other end is used for sampling; the pipeline assembly comprises a first pipeline and a second pipeline, one end of the first pipeline communicates with the cavity part, and the other end of the first pipeline communicates with the connector end. One end of the second pipeline is connected with the cavity part, the other end of the second pipeline is connected with the first pipeline, and the second pipeline is a closed pipeline. The expiration sampling device solves the technical problems that in the prior art, an expiration sampling device is inconvenient to wear and prone to falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a breath sampling device and a detection system. Background Art

[0002] Exhaled breath detection technology is a new non-invasive technical means. By detecting some gas signal molecules in the exhaled breath, it helps in the diagnosis, treatment and prognosis of diseases.

[0003] The exhaled breath sampling device is a necessary structure in the exhaled breath detection process. The exhaled breath of a person needs to be introduced into the detection system through the exhaled breath sampling device. Common exhaled breath sampling devices include nasal cannula, mask and other structural forms.

[0004] In some areas of respiratory detection, users are required to wear a breath sampling device for a period of time to facilitate sampling by the detection system, usually ranging from a few seconds to tens of minutes. However, existing breath sampling devices generally have problems such as inconvenient wearing, air leakage and easy falling off, which brings inconvenience to users and a bad user experience, especially for infants and young children who have no autonomous control awareness. Utility Model Content

[0005] The utility model aims to provide a breath sampling device and a detection system to alleviate the technical problems of the breath sampling device in the prior art that it is inconvenient to wear and easy to fall off.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] In a first aspect, the breath sampling device provided by the utility model comprises a sampling end, a pipeline assembly and a connector end;

[0008] The sampling end includes a sampling head and a cavity portion, one end of the sampling head is connected to the cavity portion, and the other end is used for sampling;

[0009] The pipeline assembly includes a first pipeline and a second pipeline, one end of the first pipeline is connected to the cavity portion, and the other end of the first pipeline is connected to the joint end;

[0010] One end of the second pipeline is connected to the cavity portion, and the other end is connected to the first pipeline. The second pipeline is a closed pipeline.

[0011] Furthermore, the cavity portion is configured to be an oblong shape, and the first pipeline and the second pipeline are respectively connected to two ends of the cavity portion.

[0012] Furthermore, the axis of the sampling head is perpendicular to the axis of the cavity portion, and the sampling head is connected to the middle portion of the cavity portion.

[0013] Furthermore, the pipeline assembly also includes a collar, and the collar is slidably mounted on the first pipeline and the second pipeline.

[0014] Furthermore, the pipeline assembly includes a connector, which is sleeved on the first pipeline and is provided with an inserting hole, and the second pipeline is inserted into the inserting hole.

[0015] Furthermore, the connector end is provided with a locking structure, and the locking structure is used to cooperate with the connector bracket in the detection device.

[0016] Furthermore, the locking structure is configured as a limiting protrusion, the joint bracket is provided with a limiting hole, and the limiting protrusion is inserted into the limiting hole.

[0017] Furthermore, an identification piece is installed at the connector end, and the identification piece is used for signal connection with the connector bracket in the detection device.

[0018] Furthermore, a sealing ring is provided at one end of the joint end away from the first pipeline.

[0019] In a second aspect, the detection system provided by the utility model comprises a detection device and a breath sampling device as described in any one of the above items;

[0020] The detection device is provided with a joint bracket, and the joint bracket is provided with a probe;

[0021] The connector end in the breath sampling device is inserted into the connector bracket and is connected to the probe signal.

[0022] Based on the above technical solutions, the technical effects that can be achieved by the present invention are analyzed as follows:

[0023] The breath sampling device provided by the utility model comprises a sampling end, a pipeline assembly and a connector end; the sampling end comprises a sampling head and a cavity portion, one end of the sampling head is connected to the cavity portion, and the other end is used for sampling; the pipeline assembly comprises a first pipeline and a second pipeline, one end of the first pipeline is connected to the cavity portion, and the other end is connected to the connector end; one end of the second pipeline is connected to the cavity portion, and the other end is connected to the first pipeline, and the second pipeline is a closed pipeline.

[0024] In order to ensure that the gas in the air volume is real alveolar gas (or not mixed with too much non-alveolar gas), during the sampling stage of the exhaled breath sampling device, it is necessary to avoid mixing and diffusion between gas segments collected at different times. The second pipeline is a closed pipeline to avoid gas diversion and mixing during collection as much as possible, which greatly reduces diffusion and ensures that the detection system can subsequently capture the alveolar gas segment more accurately for detection, which helps to improve detection accuracy.

[0025] When using the breath sampling device, the end of the sampling head is extended to the nostrils of the person being sampled, and the first pipeline and the second pipeline are respectively wrapped behind the two ears of the person being sampled. The breath sampling device is fixed to the head of the person being sampled through the first pipeline and the second pipeline, without the need for auxiliary fixation such as tape; the wearing method is simple, and because the breath sampling device is fixed by both ears at the same time, the breath sampling device is not easy to fall off the head of the person being sampled. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of a breath sampling device provided in an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of the internal structure of a breath sampling device provided in an embodiment of the utility model;

[0029] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 A schematic diagram of the structure of a detection system provided in an embodiment of the utility model.

[0031] icon:

[0032] 100 - sampling end; 110 - sampling head; 120 - cavity;

[0033] 200- pipeline assembly; 210- first pipeline; 220- second pipeline; 230- collar; 240- connector; 241- plug hole;

[0034] 300-connector end; 310-limiting protrusion; 320-identification piece; 330-sealing ring;

[0035] 400-connector bracket; 410-probe; 420-limiting hole. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] Embodiment 1

[0044] The breath sampling device provided by the embodiment of the utility model includes a sampling end 100, a pipeline assembly 200 and a connector end 300; the sampling end 100 includes a sampling head 110 and a cavity portion 120, one end of the sampling head 110 is connected to the cavity portion 120, and the other end is used for sampling; the pipeline assembly 200 includes a first pipeline 210 and a second pipeline 220, one end of the first pipeline 210 is connected to the cavity portion 120, and the other end is connected to the connector end 300; one end of the second pipeline 220 is connected to the cavity portion 120, and the other end is connected to the first pipeline 210, and the second pipeline 220 is a closed pipeline.

[0045] Specifically, see Figures 1 to 3 The first pipeline 210 and the second pipeline 220 are both plugged into the cavity portion 120, and the inner diameters of the first pipeline 210 and the second pipeline 220 need to be small enough, and try not to allow gas diversion or mixing during collection, which can greatly reduce diffusion.

[0046] In order to ensure that the gas in the air volume is real alveolar gas (or not mixed with too much non-alveolar gas), during the sampling stage of the exhaled breath sampling device, it is necessary to try to avoid the mixing and diffusion between the gas segments collected at different times. The second pipeline 220 is a closed pipeline, which can be used to avoid gas diversion and mixing during collection. It greatly reduces the diffusion and ensures that the detection system can capture the alveolar gas segment more accurately for detection later, which helps to improve the detection accuracy. When using the exhaled breath sampling device, the end of the sampling head 110 is extended to the nostrils of the sampled person, and the first pipeline 210 and the second pipeline 220 are respectively wrapped around the two ears of the sampled person. The exhaled breath sampling device is fixed to the head of the sampled person through the first pipeline 210 and the second pipeline 220, without the need for auxiliary fixation such as tape; the wearing method is simple, and because the two ears fix the exhaled breath sampling device at the same time, the exhaled breath sampling device is not easy to fall off the head of the sampled person.

[0047] The structure and shape of the breath sampling device are described in detail below:

[0048] In an optional solution of the present invention, the cavity portion 120 is configured to be an oblong shape, and the first pipeline 210 and the second pipeline 220 are respectively connected to two ends of the cavity portion 120 .

[0049] Specifically, see Figure 3 The inner diameter of the cavity portion 120 gradually decreases from the middle position to both ends.

[0050] The cavity portion 120 is configured to be oblong, so that the cavity portion 120 can be stably placed under the nostrils during use.

[0051] In an optional solution of the present invention, the axis of the sampling head 110 is perpendicular to the axis of the cavity portion 120 , and the sampling head 110 is connected to the middle of the cavity portion 120 .

[0052] Specifically, the sampling head 110 is configured as a hollow tubular structure, and the axial direction of the sampling head 110 is perpendicular to the length direction of the cavity portion 120 , which is more ergonomic.

[0053] In an optional solution of the present invention, the pipeline assembly 200 further includes a collar 230 , and the collar 230 is slidably mounted on the first pipeline 210 and the second pipeline 220 .

[0054] Specifically, between the connection point of the first pipeline 210 and the second pipeline 220 and the sampling end 100 , a slidable collar 230 is sleeved on the first pipeline 210 and the second pipeline 220 .

[0055] The collar 230 facilitates tightening the distance between the first pipeline 210 and the second pipeline 220 during wearing, so as to facilitate more stable wearing of the breath sampling device.

[0056] In an optional solution of the present invention, the pipeline assembly 200 includes a connector 240 , which is sleeved on the first pipeline 210 and has an inserting hole 241 , and the second pipeline 220 is inserted into the inserting hole 241 .

[0057] Specifically, the second pipeline 220 is set as a closed pipeline. The second pipeline 220 can be closed at the position of the cavity 120, or at the connection between the second pipeline 220 and the first pipeline 210. In this embodiment, see Figure 2 , the plug hole 241 is set as a blind hole, that is, when the second pipeline 220 is inserted into the plug hole 241, the second pipeline 220 is connected to the first pipeline 210 and the second pipeline 220 is closed at the same time. It is worth noting that after the second pipeline 220 is closed at any place, because the second pipeline 220 is closed and the first pipeline 210 is unobstructed, the gas flowing through the sampling head 110 and entering the cavity 120 under the action of pressure will flow into the first pipeline 210; there is no exhaled gas flowing in the second pipeline 220, and the function of the second pipeline 220 is mainly to facilitate the wearing of the exhaled sampling device.

[0058] The connector 240 not only realizes the connection between the second pipeline 220 and the first pipeline 210 , but also realizes the sealing of the second pipeline 220 .

[0059] In an optional solution of the present invention, the connector end 300 is provided with a locking structure, and the locking structure is used to cooperate with the connector bracket 400 in the detection device.

[0060] Specifically, the connector end 300 is used to cooperate with the connector bracket 400 in the detection device to input the exhaled air sampled by the exhaled air sampling device into the detection device for detection.

[0061] The locking structure can prevent the joint end 300 from accidentally falling off the detection device, thereby reducing the risk of gas collection failure.

[0062] In an optional solution of the present invention, the locking structure is provided as a limiting protrusion 310 , the joint bracket 400 is provided with a limiting hole 420 , and the limiting protrusion 310 is inserted into the limiting hole 420 .

[0063] Specifically, see Figure 4 The connector end 300 is set to be rectangular, and a limit protrusion 310 is raised on one side. A limit hole 420 is opened at the corresponding position of the connector bracket 400 of the detection system. After the connector end 300 is inserted into the connector bracket 400, the limit protrusion 310 and the limit hole 420 are matched and engaged by rotating the connector end 300, thereby achieving a locking effect. After locking, the breath sampling device is difficult to fall off in the event of accidental dragging. When disassembling after the gas collection is completed, just rotate it in the opposite direction and unplug it, which is convenient for disassembly and assembly.

[0064] In an optional solution of the present invention, the connector end 300 is installed with an identification member 320, and the identification member 320 is used for signal connection with the connector bracket 400 in the detection device.

[0065] Specifically, the identification element 320 is configured as an identification chip.

[0066] The identification chip is connected to the connector bracket 400 by signals, so as to realize the function of identifying the number of times the connector end 300 has been used, thereby preventing the same breath sampling device from being repeatedly used by different persons and causing cross contamination.

[0067] In an optional solution of the present invention, a sealing ring 330 is provided at one end of the joint end 300 away from the first pipeline 210 .

[0068] Specifically, in this embodiment, the sealing ring 330 is configured in a ring shape.

[0069] After the connector end 300 of the breath sampling device is plugged into the connector bracket 400, the presence of the sealing ring 330 can prevent leakage during the gas sampling process of the detection system, thereby preventing the detection result from being affected.

[0070] Embodiment 2

[0071] The detection system provided in the embodiment of the utility model includes the breath sampling device in the first embodiment, and therefore also has all the beneficial effects in the first embodiment, which will not be described in detail here.

[0072] In an optional solution of the embodiment of the utility model, the detection system includes a detection device, the detection device is provided with a connector bracket 400, and the connector bracket 400 is provided with a probe 410; the connector end 300 in the breath sampling device is inserted into the connector bracket 400 and is connected to the probe 410 for signal.

[0073] Specifically, the basic logic of the detection system is: through the change of CO2 concentration in the exhaled gas, it can be determined whether the part of the gas is alveolar gas. The exhaled gas collected by the exhaled sampling device is transmitted to the detection system, and each section flows through the CO2 sensor to detect the concentration of each section. There is a three-way valve downstream of the CO2 sensor, one way leads to the gas volume or detection element, and the other way leads to the environment. For the gas section that meets the judgment threshold, the three-way valve is switched to connect with the gas volume or detection element, and the part of the gas is collected in the gas volume or detection element for detecting the component to be tested. For the gas section that does not meet the judgment threshold, the three-way valve is switched to connect with the environment and discharged directly. Furthermore, the connector bracket 400 is installed with an information identification PCB, and a probe 410 is provided at the position of the PCB corresponding to the identification chip of the connector end 300.

[0074] When the connector end 300 is plugged into place, the identification chip and the probe 410 are in contact with each other for signal connection; through this structure, the function of identifying the number of times the connector end 300 has been used can be realized, which can avoid cross contamination caused by repeated use of the same breath sampling device by different people.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A breath sampling device, characterized in that: include: A sampling end (100), a pipeline assembly (200) and a connector end (300); The sampling end (100) comprises a sampling head (110) and a cavity portion (120); one end of the sampling head (110) is connected to the cavity portion (120), and the other end is used for sampling; The pipeline assembly (200) comprises a first pipeline (210) and a second pipeline (220); one end of the first pipeline (210) is in communication with the cavity portion (120), and the other end of the first pipeline (210) is in communication with the joint end (300); One end of the second pipeline (220) is connected to the cavity portion (120), and the other end is connected to the first pipeline (210); the second pipeline (220) is a closed pipeline.

2. The breath sampling device according to claim 1, characterized in that: The cavity portion (120) is configured to be elongated, and the first pipeline (210) and the second pipeline (220) are respectively connected to two ends of the cavity portion (120).

3. The breath sampling device according to claim 2, characterized in that: The axis of the sampling head (110) is perpendicular to the axis of the cavity (120), and the sampling head (110) is connected to the middle of the cavity (120).

4. The breath sampling device according to claim 1, characterized in that: The pipeline assembly (200) further comprises a collar (230), wherein the collar (230) is slidably mounted on the first pipeline (210) and the second pipeline (220).

5. The breath sampling device according to claim 1, characterized in that: The pipeline assembly (200) comprises a connecting piece (240), the connecting piece (240) is sleeved on the first pipeline (210) and is provided with an inserting hole (241), and the second pipeline (220) is inserted into the inserting hole (241).

6. The breath sampling device according to claim 1, characterized in that: The joint end (300) is provided with a locking structure, and the locking structure is used to cooperate with a joint bracket (400) in the detection device.

7. The breath sampling device according to claim 6, characterized in that: The locking structure is configured as a limiting protrusion (310), the joint bracket (400) is provided with a limiting hole (420), and the limiting protrusion (310) is inserted into the limiting hole (420).

8. The breath sampling device according to claim 1, characterized in that: The connector end (300) is installed with an identification component (320), and the identification component (320) is used for signal connection with a connector bracket (400) in the detection device.

9. The breath sampling device according to claim 1, characterized in that: A sealing ring (330) is provided at one end of the joint end (300) that is away from the first pipeline (210).

10. A detection system, characterized in that: Comprising a detection device and a breath sampling device as claimed in any one of claims 1 to 9; The detection device is provided with a joint bracket (400), and the joint bracket (400) is provided with a probe (410); The connector end (300) in the breath sampling device is inserted into the connector bracket (400) and is signal-connected to the probe (410).

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