CN214895310U

CN214895310U - Expiration sampling device

Info

Publication number: CN214895310U
Application number: CN202120380129.5U
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: 2021-11-26
Anticipated expiration: 2031-02-20

Abstract

The utility model relates to an expired air sampling device, which comprises an expired air bin and an induction module arranged in the expired air bin; the breath cabin is provided with a shell and a breath chamber enclosed by the shell, the shell is also connected with a blowing nozzle communicated with the breath chamber and an air outlet communicated with the breath chamber, and a filter element is arranged in the air outlet; 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 breath sampling device further comprises a gas inlet cover body, wherein the gas inlet cover body is provided with a blocking part for blocking the inlet of the blowing nozzle, so that the breath sampling device capable of realizing non-contact detection is provided.

Description

Expiration sampling device

Technical Field

The utility model relates to an expiration test technical field specifically is a relate to an expiration sampling device.

Background

Breath analyzers, which are devices for detecting Biologically Volatile Organic Compounds (BVOC) in exhaled breath, have been widely used in a variety of contexts, such as for on-site 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. Exhalation-based diagnosis is particularly excellent as a non-invasive method compared to conventional biological diagnostic methods (e.g., blood sampling), where 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. At present, breath detectors on the market are integrated with sample collection and detection, the mutual infection between front and rear testers cannot be effectively controlled, safe test and safe discarding cannot be realized, and breath samples released in the breath analyzer can be discharged into the environment, so that 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. Therefore, there is a need for an exhalation module design that is isolated while also enabling non-contact detection, so that there is no contamination both before and after use, and that sampling and detection is safe.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can realize expiration sampling device of non-contact detection.

The specific scheme is as follows:

an expiration sampling device comprises an expiration bin and an induction module arranged in the expiration bin; the breath cabin is provided with a shell and a breath chamber enclosed by the shell, the shell is also connected with a blowing nozzle communicated with the breath chamber and an air outlet communicated with the breath chamber, and a filter element is arranged in the air outlet; 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 blocking part for blocking the inlet of the blowing nozzle.

Further, the sensing module is rotatably installed in the exhalation chamber, so that the sensing module has a first state facing the mouthpiece and a second state facing the diagnosis window.

Furthermore, the breathing device also comprises a base and a module supporting piece, wherein the lower part of the module supporting piece is provided with a rotating shaft, the module supporting piece is pivoted on the base through the rotating shaft, the rotating shaft is also provided with a rotating part extending out of the breathing cabin, and the sensing module is fixedly arranged on the upper part of the module supporting piece.

Furthermore, the base is further provided with a first positioning portion and a second positioning portion, the module supporting member is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are matched with the first positioning portion, when the module supporting member rotates, the first limiting portion and the first positioning portion are matched with each other to enable the module supporting member to rotate to the first position, and the second limiting portion and the second positioning portion are matched with each other to enable the module supporting member to rotate to the second position.

Further, the first limiting portion is a side wall of the module supporting member, and the first positioning portion is a positioning column disposed on the base.

Furthermore, the second limiting part is a limiting pin arranged on the module supporting piece, and the second positioning part is a positioning groove arranged on the base.

Further, the induction module is detachably fixed on the module support member.

Further, the response module includes the mounting and is fixed in response piece on the mounting, the mounting has the fixed slot that sets up with module support piece's upper portion phase-match, the fixed slot sets up with module support piece's upper portion interference fit.

Further, the intake cover may be irreversibly fixed to the housing.

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 cavity for accommodating the blowing nozzle is formed in a space enclosed by the peripheral wall and the bottom wall, a plurality of buckles are arranged on the inner wall of the peripheral wall at positions close to the open end, clamping grooves matched with the buckles are formed in the shell, and the air inlet cover body is matched with the clamping grooves of the shell through the buckles to realize irreversible fixation.

The utility model provides an expiration sampling device compares with prior art and has following advantage: the utility model provides an expiration sampling device will respond to the module integration in exhaling the storehouse to offer non-light tight diagnosis window in exhaling the storehouse, realize the BVOCS measurement of non-contact mode, and all can not appear the leakage of pathogen in sampling process and the test procedure, realize the safety of sampling and detection.

Drawings

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

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

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

Fig. 4 shows a schematic diagram of a sensing module.

FIG. 5 shows a schematic cross-sectional view of an air scoop cover.

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. 1-3, the present embodiment provides an expiratory sampling device, which includes an expiratory chamber 10 and a sensing module 20 disposed in the expiratory chamber 10.

The breath cabin 10 has a housing 100 and an exhalation chamber 110 enclosed by the housing 100, the housing 100 is further connected with a mouthpiece 120 communicated with the exhalation chamber 110 and an air outlet 130 communicated with the exhalation chamber 110, wherein the mouthpiece 120 is used for a user to exhale into the exhalation chamber 110 through the mouthpiece 120, and the air outlet 130 is used for balancing the air pressure in the exhalation chamber 110, so as to ensure that the exhaled air can flow in the whole breath cabin 10 without accumulating too much pressure in the exhalation cabin 10, and simultaneously accumulate a large number 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.

The sensing module 20 is installed in the exhalation chamber 110 of the exhalation module 10, and is used for the sensing module 20 for detecting a target object (usually, BVOCS, but not limited thereto, and may also be other substances in the exhalation gas, in this embodiment, the detection object is BVOCS for example) in the gas, where the sensing module 20 may be determined according to the detection target object, for example, when the alcohol concentration in the exhalation gas needs to be detected, the sensing module 20 may employ a nano silver substrate module, for example, when the micro ribonucleic acid in the exhalation gas needs to be detected, the sensing module 20 may employ 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.

The casing 100 is provided with a diagnosis window 140 at a position facing the sensing module 20, the diagnosis window 140 is communicated with the breathing chamber 110, and the diagnosis window 140 is covered with a transparent plate 141 for sealing 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 an air inlet cover 30, the air 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 air inlet cover 30 blocks the inlet of the mouthpiece 120 after the breath sampling apparatus is used, so as to prevent the gas collected in the breath chamber 10 from escaping from 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, and the sampling operation can be completed by covering and fixing the air inlet cover body 30 on the expiration bin 10 after expiration is completed, so that the whole sampling process is simple and convenient; during detection, infrared rays or raman spectra of the detection device are irradiated onto the sensing module 20 in the exhalation module 10 from the diagnosis window 140, so that the BVOCS in the exhalation chamber 110 can be detected in a non-contact manner, and safety in the whole sampling and detection process is ensured.

In this embodiment, the sensing module 20 is rotatably installed in the exhalation chamber 110, so that the sensing module 20 can be oriented toward the mouthpiece 120 during exhalation sampling, thereby accumulating samples to the maximum extent for detection. The sensing module 20 can face the diagnosis window 140 during the detection, so that the infrared or raman spectrum of the detection device can be aligned with the sensing module 20, thereby ensuring the accuracy and sensitivity during the detection.

As a specific implementation manner of the rotation arrangement of the sensing module 20 in this embodiment, referring to fig. 4, the exhalation chamber 110 further has a base 21 and a module support 22, wherein the base 21 is fixedly installed in the exhalation chamber 110, and the base 21 can be fixed by using the prior art such as adhesive bonding, ultrasonic welding or integral molding with the housing of the exhalation module 10. The module support 22 has a rotating shaft 220 at a lower portion thereof, and the sensing module 20 is fixedly mounted at an upper portion of the module support 22. The rotating shaft 220 is pivotally connected to the base 21, so that the module supporting member 22 can rotate around the rotating shaft 220, and the rotating shaft 220 further has a rotating portion 221 extending out of the exhalation module 10, so that a user can apply force to the rotating shaft 220 outside the exhalation module 10 to drive the module supporting member 22 to rotate. In order to ensure the sealing performance of the exhalation module 10, a sealing ring 222 is further disposed on the rod body of the rotating shaft 220 penetrating through the exhalation module 10, and the sealing ring 222 can maintain the sealing performance of the exhalation module 10.

Preferably, the base 21 is further provided with a first positioning portion 211 and a second positioning portion 212, the module support 22 is provided with a first limiting portion 223 and a second limiting portion 224 which are matched with the first positioning portion 211, when the module support 22 rotates, the first limiting portion 223 and the first positioning portion 211 are matched to rotate the module support 22 to the first position, and the second limiting portion 224 and the second positioning portion 212 are matched to rotate the module support 22 to the second position.

In this embodiment, the first position-limiting portion 223 is a side wall of the module support 22, and the first positioning portion 211 is a positioning column disposed on the base 21, when the side wall of the module support 22 abuts against a top surface of the positioning column, the module support 22 is located at a first position on the induction module 20 facing the mouthpiece 120. The second position-limiting portion 224 in this embodiment is a position-limiting pin transversely disposed on the module support 22, and the second positioning portion 212 is a positioning slot disposed on the base 21, when the position-limiting pin on the module support 22 rotates to extend into the positioning slot and abut against the bottom of the positioning slot, the module support 22 is located at a second position on the sensing module 20 facing the diagnostic window 140.

Preferably, the sensor modules 20 are removably secured to the module support 22, thereby facilitating the configuration of the respective sensor module 20 for the purpose of the actual test. In this embodiment, the sensing module 20 includes a fixing member 201 and a sensing member 202 fixed on the fixing member 201, the fixing member 201 has a fixing groove matched with the upper portion of the module supporting member 22, and the fixing groove is in interference fit with the upper portion of the module supporting member 22, so that the fixing member 201 can be conveniently fixed on the module supporting member 22.

In this embodiment, referring to fig. 5, the air inlet cover 30 can be irreversibly secured to the housing 100 to enable sealing of the mouthpiece 120 after breath sampling and to prevent accidental reuse of the disposable breath sampler. The term "irreversible" in the present embodiment means that the intake port cover 30 cannot be removed from the casing 100 without damaging the intake port cover 30 or the 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 the blocking portion 310 just blocks the air inlet of the mouthpiece 120 when the air inlet cover 30 is fixedly assembled to the housing 100.

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. An breath sampling device, comprising: comprises an expiration bin and a sensing module arranged in the expiration bin; the breath cabin is provided with a shell and a breath chamber enclosed by the shell, the shell is also connected with a blowing nozzle communicated with the breath chamber and an air outlet communicated with the breath chamber, and a filter element is arranged in the air outlet; 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 blocking part for blocking the inlet of the blowing nozzle.

2. The breath sampling device of claim 1, wherein: the sensing module is rotatably mounted in the exhalation chamber such that the sensing module has a first state facing the mouthpiece and a second state facing the diagnostic window.

3. The breath sampling device of claim 2, wherein: the breathing device is characterized by further comprising a base and a module supporting piece, wherein a rotating shaft is arranged on the lower portion of the module supporting piece, the module supporting piece is pivoted on the base through the rotating shaft, the rotating shaft is further provided with a rotating portion extending out of the breathing cabin, and the sensing module is fixedly arranged on the upper portion of the module supporting piece.

4. The breath sampling device of claim 3, wherein: the base is further provided with a first positioning portion and a second positioning portion, the module supporting piece is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second positioning portion are matched with each other and are arranged, when the module supporting piece rotates, the first limiting portion and the first positioning portion are matched with each other to enable the module supporting piece to rotate to a first position, and the second limiting portion and the second positioning portion are matched with each other to enable the module supporting piece to rotate to a second position.

5. The breath sampling device of claim 4, wherein: the first limiting part is a side wall of the module supporting piece, and the first positioning part is a positioning column arranged on the base.

6. The breath sampling device of claim 4, wherein: the second limiting part is a limiting pin arranged on the module supporting piece, and the second positioning part is a positioning groove arranged on the base.

7. The breath sampling device of claim 3, wherein: the induction module is detachably fixed on the module supporting piece.

8. The breath sampling device of claim 7, wherein: the sensing module comprises a fixing piece and a sensing piece fixed on the fixing piece, the fixing piece is provided with a fixing groove matched with the upper portion of the module supporting piece, and the fixing groove is in interference fit with the upper portion of the module supporting piece.

9. The breath sampling device of claim 1, wherein: the intake cover may be irreversibly secured to the housing.

10. The breath sampling device of claim 9, 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 cavity for accommodating the blowing nozzle is formed in a space enclosed by the peripheral wall and the bottom wall, a plurality of buckles are arranged on the inner wall of the peripheral wall at positions close to the open end, clamping grooves matched with the buckles are formed in the shell, and the air inlet cover body is matched with the clamping grooves of the shell through the buckles to realize irreversible fixation.