CN218419899U

CN218419899U - Disposable breath sampler

Info

Publication number: CN218419899U
Application number: CN202120380028.8U
Authority: CN
Inventors: 孙盛
Original assignee: Xiamen Aiweisheng Technology Co ltd
Current assignee: Xiamen Aiweisheng Technology Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2023-02-03
Anticipated expiration: 2031-02-20

Abstract

The utility model relates to a disposable breath sampler, which comprises a breath bin and a gas inlet cover body; the breath cabin is provided with a shell and a breath chamber enclosed by the shell, the shell is also connected with a mouthpiece arranged in communication with the breath chamber and an air outlet arranged in communication with the breath chamber, and a filter element is arranged in the air outlet; an induction module is arranged in the expiration chamber; a diagnosis window is arranged on the shell at a position opposite to the induction module, and a light-transmitting plate for sealing the diagnosis window is covered on the diagnosis window; the air inlet cover body can be fixed on the shell in an irreversible mode so as to realize the sealing of the blowing nozzle and prevent the disposable breath sampler from being reused, and the problem that the released breath sample in the existing breath analyzer cannot be safely tested and discarded is solved.

Description

Disposable breath sampler

Technical Field

The utility model relates to an expiration detects technical field, specifically is to relate to a disposable expiration sample thief.

Background

Breath analyzers are devices for detecting Biological Volatile Organic Compounds (BVOC) in exhaled breath and have been widely used in a variety of applications, such as in-situ estimation of alcohol content in blood. Due to the direct link between BVOC and chemical (biological) substances occurring in the human body, sensitive detection of BVOC is also an emerging method for diagnosing human health. For example, small chemical molecules, such as formaldehyde, butane, isoprene, pentane, have been used as identifying biomarkers for many diseases, including tuberculosis, colorectal cancer, and lung cancer. Breath-based diagnosis is particularly excellent as a non-invasive method compared to conventional biological diagnostic methods (e.g., blood sampling), and even medically untrained personnel can frequently perform real-time, rapid monitoring/screening. Therefore, exhalation-based diagnosis is critical for early disease recognition, facilitating therapy and rehabilitation.

Existing Breath analyzer diagnostic kits typically include an exhalation Chamber (Breath Chamber) and a compartment containing a sensor for detecting BVOC. Typically, a human subject blows into an exhalation chamber through a mouthpiece (Mouth Piece) and exhales are directed into a sensory compartment for detection. The breath compartment also contains an outlet so that no pressure builds up in the breath analyzer, thereby ensuring a smooth and continuous exhalation to accumulate the target analyte. At present, the breath detectors on the market are integrated for collecting and detecting samples, the mutual infection between a front tester and a rear tester cannot be effectively controlled, safe testing and safe discarding cannot be realized, the breath samples released in the breath analyzer can be discharged into the environment, biological pollution can be caused, and the breath analyzer cannot be used as a health-care diagnosis tool, particularly for patients suffering from or possibly suffering from infectious diseases. There is therefore a need for an exhalation cartridge design that is insulated, free of contamination before and after use, and has safety measures to avoid accidental reuse. These standards are important for the development of portable diagnostic devices for public healthcare, even for infectious diseases that may pose a significant risk to interpersonal spread.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a disposable expiration sample thief to solve the problem that the release in the current breath analysis appearance exhales the sample and also can't the safety test and abandon safely.

The specific scheme is as follows:

a disposable expiration sampler comprises an expiration bin and an air inlet cover body;

the breath cabin is provided with a shell and a breath chamber enclosed by the shell, the shell is also connected with a mouthpiece arranged in communication with the breath chamber and an air outlet arranged in communication with the breath chamber, and a filter element is arranged in the air outlet; an induction module is arranged in the expiration chamber; a diagnosis window is arranged on the shell at a position opposite to the induction module, and a light-transmitting plate for sealing the diagnosis window is covered on the diagnosis window;

the air inlet cover body is provided with a cavity for accommodating the blowing nozzle and a blocking part for blocking the inlet of the blowing nozzle, and can be fixed on the shell in an irreversible mode so as to realize the sealing of the blowing nozzle and prevent the disposable breath sampler from being reused.

Furthermore, the air inlet cover body is of a cylindrical structure with one open end and one closed end and is provided with an annular peripheral wall and a bottom wall, a space enclosed by the peripheral wall and the bottom wall forms the cavity, a plurality of buckles are arranged on the inner wall of the peripheral wall at positions close to the open end, the shell is provided with clamping grooves matched with the buckles, and the air inlet cover body is matched with the clamping grooves of the shell through the buckles to realize irreversible fixation.

Further, the blocking portion is arranged on the bottom wall and is opposite to the air inlet of the blowing nozzle, and when the air inlet cover body is fixed on the shell, the blocking portion extends into the air inlet of the blowing nozzle and seals the air inlet of the blowing nozzle.

Further, the filter element is made of medical grade filter cotton with BFE and VFE reaching or exceeding 95%.

Furthermore, the shell of the expiration bin is formed by splicing and assembling an upper shell and a lower shell, one of a splicing convex strip and a splicing groove is respectively arranged on the opposite splicing surfaces of the upper shell and the lower shell, and when the upper shell and the lower shell are spliced and assembled into a complete shell, the splicing convex strip extends into the splicing groove.

Further, the exhalation module is capable of withstanding a 4PSI gas leak test.

Furthermore, an irreversible humidity test paper is arranged in the expiration chamber.

The utility model provides a disposable expiration sample thief compares with prior art and has following advantage: the utility model provides a disposable expiration sample thief when can realizing that non-contact mode measures BVOCS, the disclosure of pathogen can not appear in sampling process and test procedure all, and the air inlet cover body is fixed on the casing with irreversible mode, has ensured that every expiration sample thief has and only has been used once, avoids it by unexpected used repeatedly.

Drawings

FIG. 1 shows a schematic view of a disposable breath sampler without an air inlet cover.

FIG. 2 shows a cross-sectional schematic view of a disposable breath sampler without the air inlet cover.

FIG. 3 shows a schematic view of a disposable breath sampler with an air inlet cover.

FIG. 4 shows a cross-sectional schematic view of an intake cover.

Fig. 5 shows a schematic view of the lower housing.

Fig. 6 shows a schematic view of the upper housing.

Fig. 7 shows a schematic cross-sectional view of the disposable breath sampler in another view orientation.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1-4, the present embodiment provides a disposable breath sampler, which includes a breath chamber 10, the breath chamber 10 has a housing 100 and a breath chamber 110 enclosed by the housing 100, the housing 100 is further connected with a mouthpiece 120 communicating with the breath chamber 110, and an air outlet 130 communicating with the breath chamber 110, wherein the mouthpiece 120 is used for a user to exhale into the breath chamber 110 through the mouthpiece 120, and the air outlet 130 is used for balancing the air pressure in the breath chamber 110, so as to ensure that the exhaled air can flow in the whole breath chamber 10, without accumulating too much pressure in the breath chamber 10, and simultaneously accumulate a large amount of samples for detection. To prevent some pathogens from escaping from the exhalation chamber 110, a filter 131 is also provided in the air outlet 130, and the filter 131 is typically made of medical grade filter cotton with BFE and VFE both reaching or exceeding 95% to capture and isolate possible infectious pathogens in the exhalation chamber, which effectively prevents the release of possible infectious exhalations into the external environment and effectively eliminates the possibility of biological contamination during the diagnostic process.

A sensing module 20 for detecting a target object is fixedly installed in the exhalation chamber 110, wherein the sensing module 20 can be determined according to the target object to be detected (usually, BVOCS, but not limited thereto, and may also be other substances in the exhaled breath, and in the embodiment, the target object to be detected is BVOCS as an example) and for example, when the alcohol concentration in the exhaled breath needs to be detected, the sensing module 20 can adopt a nano silver substrate module, for example, when micro ribonucleic acid in the exhaled breath needs to be detected, the sensing module 20 can adopt an AU 3D sensing module. It should be understood that the sensing module can be made from the prior art or directly used, such as the one described above, which is commercially available from Pico fountain corporation, korea.

A diagnosis window 140 is disposed on the casing 100 at a position opposite to the sensing module 20, the diagnosis window 140 is communicated with the exhalation chamber 110, and a transparent plate 141 for sealing the diagnosis window 140 covers the diagnosis window 140. The transparent plate 141 is made of a biocompatible light-transmitting material, such as organic or inorganic optical glass, which allows the light beam and scattered light to freely transmit between the sensing module 20 and the expiratory chamber 10 under the detection conditions such as infrared or raman spectroscopy, so that the BVOCS in the expiratory chamber 110 can be detected in a non-contact manner.

The disposable breath sampler provided in this embodiment further includes a gas inlet cover 30, the gas inlet cover 30 has a cavity 300 for accommodating the mouthpiece 120 and a blocking portion 310 for blocking the inlet of the mouthpiece 120, and the gas inlet cover 30 can be irreversibly fixed to the housing 100 to seal the mouthpiece 120 after breath sampling and prevent the disposable breath sampler from being accidentally reused. The irreversible function in the present embodiment means that intake port cover 30 cannot be removed from casing 100 without damaging intake port cover 30 or casing 100.

The intake cover 30 in this embodiment is a tubular structure with one open end and one closed end, the intake cover 30 is generally formed by injection molding of plastic material, and has a ring-shaped peripheral wall 301 and a bottom wall 302, and a space enclosed by the peripheral wall 301 and the bottom wall 302 forms the cavity 300. The inner wall of the peripheral wall 301 is provided with a plurality of fasteners 320 at positions close to the opening, the housing 100 is provided with slots 150 matched with the fasteners 320, when the air inlet cover 30 is assembled on the housing 100, the fasteners 320 are matched and clamped in the slots 150, so that the air inlet cover 30 is fixed on the housing 100 in an irreversible manner, the air inlet cover 30 can be removed only after the fasteners 320 on the air inlet cover 30 are damaged, and the damaged fasteners 320 and the loose connection between the air inlet cover 30 and the housing 100 can prove that the breath sampler is used, so that the breath sampler can be regarded as invalid, and each breath sampler can be ensured to be used only once and only once. The blocking portion 310 is disposed on the bottom wall 302 and is disposed opposite to the air inlet of the mouthpiece 120, so that when the air inlet cover 30 is fixedly assembled to the housing 100, the blocking portion 310 just blocks the air inlet of the mouthpiece 120.

When not in use, the exhalation module 10 and the air inlet cover 30 are separated and are packaged separately or together in a sterile manner; when the sampling device is used, a user performs expiration sampling operation through the mouthpiece 120 of the expiration bin 10, the air inlet cover body 30 is covered and fixed on the expiration bin 10 after expiration is completed, the sampling operation can be completed, the whole sampling process is simple and convenient, the air inlet cover body 30 is fixed on the shell 100 in an irreversible mode, each expiration bin 10 is guaranteed to be used only once, the filter 131 in the air outlet 130 guarantees that pathogens cannot escape from the expiration chamber 110, and the samples cannot escape to the environment in the sampling and subsequent testing processes, so that the safety is guaranteed.

Referring to fig. 5 to 7, the housing 100 of the breath cabin 10 is formed by splicing and assembling an upper housing 101 and a lower housing 102, wherein one of a splicing convex strip and a splicing concave groove is respectively arranged on the opposite splicing surfaces of the upper housing 101 and the lower housing 102, the splicing convex strip 1010 in this embodiment is arranged on the splicing surface of the upper housing 101, and the splicing concave groove 1020 is arranged on the splicing surface of the lower housing 102, when the upper housing 101 and the lower housing 102 are spliced and assembled to form the complete housing 100, the splicing convex strip 1010 on the upper housing 101 extends into the splicing concave groove 1020 of the lower housing 102, and the two are bonded and fixed together by using a bonding adhesive, so as to ensure that the breath cabin 10 can have good sealing performance, and ensure the safety of the breath sampler in the using process. The expiratory chamber 10 as in the present embodiment is able to withstand a 4PSI gas leak test, which is approximately 3 times the expiratory pressure of a person. It also withstood a 1.2 meter drop test without cracking or breaking.

In this embodiment, an irreversible humidity test paper (not shown in the figure) is further disposed in the breath chamber 110, and the humidity test paper reacts to moisture and water to change color, so that a defect that the breath sampler is used or has poor sealing performance can be determined when the humidity test paper changes color, and the state of the breath sampler can be determined more intuitively.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A disposable breath sampler, comprising: comprises an expiration bin and an air inlet cover body;

2. The disposable breath sampler of claim 1, wherein: the air inlet cover body is of a cylindrical structure with one open end and one closed end and is provided with an annular peripheral wall and a bottom wall, a space enclosed by the peripheral wall and the bottom wall forms the cavity, a plurality of buckles are arranged on the inner wall of the peripheral wall at positions close to the open end, the shell is provided with clamping grooves matched with the buckles, and the air inlet cover body is mutually matched with the clamping grooves of the shell through the buckles to realize irreversible fixation.

3. The disposable breath sampler of claim 2, wherein: the blocking portion is arranged on the bottom wall and is opposite to an air inlet of the blowing nozzle, and when the air inlet cover body is fixed on the shell, the blocking portion extends into the air inlet of the blowing nozzle and seals the air inlet of the blowing nozzle.

4. The disposable breath sampler of claim 1, wherein: the filter element is made of medical grade filter cotton with BFE and VFE reaching or exceeding 95%.

5. The disposable breath sampler of claim 1, wherein: the shell of the expiration bin is formed by splicing and assembling an upper shell and a lower shell, one of splicing convex strips and splicing grooves is arranged on the opposite splicing surfaces of the upper shell and the lower shell respectively, and when the upper shell and the lower shell are spliced and assembled into a complete shell, the splicing convex strips extend into the splicing grooves.

6. The disposable breath sampler of claim 1, wherein: the exhalation module is capable of withstanding a 4PSI gas leak test.

7. The disposable breath sampler of claim 1, wherein: and an irreversible humidity test paper is also arranged in the expiration chamber.