Expiratory gas condensate collection apparatus

Abstract

The present application provides an expiratory gas condensate collection apparatus, comprising a housing, a condensation cylinder, a condensation mesh, and a breathing pipe, wherein the inner side of the housing is provided with the condensation cylinder; the condensation mesh for condensing expiratory gas is vertically and fixedly arranged on the inner side of the condensation cylinder; the breathing pipe having one end penetrating and extending to the outer side of the housing is fixedly arranged in the middle of the inner side wall of the condensation cylinder; an exhaust pipe having one end penetrating and extending to the outer side of the housing is fixedly provided on the inner side wall of the condensation cylinder; a funnel-shaped drainage plate is provided below the condensation mesh; a condensate collecting bottle is provided below an outlet of the drainage plate; from top to bottom, the outer side of the condensation cylinder is provided with three circles of refrigeration sheets that are uniformly distributed in a radial direction and are used for cooling the interior of the condensation cylinder; a storage battery for supplying power for the refrigeration sheets is provided on the rear side of the housing; the refrigeration sheets are electrically connected to the storage battery. The present application has the advantages that the condensation speed is fast, the condensate cannot be polluted, and other people cannot be infected by waste expiratory gas.

Description

Exhaled breath condensate collection device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202321658267.0, filed on June 28, 2023, entitled “A device for collecting exhaled breath condensate”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of exhaled breath collection, and in particular to an exhaled breath condensate collection device. Background Art

[0004] Exhaled breath condensate, like blood, sweat, urine, and saliva, is an important source of specimens for detecting inflammatory factors in the respiratory system. It contains a large number of substances. The respiratory lining fluid contains a large number of volatile and non-volatile substances. Changes in these substances can reflect changes in the respiratory environment such as oxidative damage and inflammatory response, and thus can be used to detect changes in the disease. Exhaled breath condensate is the latest technology for detecting biochemical components of the respiratory tract, also known as biochemical lung function. It has attracted widespread attention due to its advantages of being safe, non-invasive, simple to collect, and repeatable. The exhaled breath condensate collector is an auxiliary medical device, often used to collect moisture in the exhaled gas of patients in the operating room, so that doctors can judge the condition and prevent patients from developing complications such as lung infections.

[0005] The exhaled gas condensate collector in the related art has a slow condensation speed during use, and the condensate is easily mixed with saliva during collection. After condensation, the exhaled gas is discharged into the air without being filtered, and the residual pathogens in the exhaled gas can easily cause infection to others. Summary of the Invention

[0006] The technical problem to be solved by the present application is to provide an exhaled breath condensate collection device in view of the above shortcomings.

[0007] To solve the above technical problems, this application adopts the following technical solutions:

[0008] A device for collecting exhaled breath condensate, comprising a shell, a condensation cylinder, a condensation net and a breathing tube, wherein a condensation cylinder is provided on the inner side of the shell, a condensation net for condensing exhaled breath is vertically fixedly provided on the inner side of the condensation cylinder, a breathing tube with one end passing through and extending to the outside of the shell is fixedly provided in the middle part of the inner wall of the condensation cylinder, an exhaust pipe with one end passing through and extending to the outside of the shell is fixedly provided on the inner wall of the condensation cylinder, a funnel-shaped drainage plate is provided below the condensation net, a condensate collection bottle is provided directly below the outlet of the drainage plate, three circles of refrigeration plates are provided on the outer side of the condensation cylinder from top to bottom, the refrigeration plates are evenly distributed radially and are used to cool the inside of the condensation cylinder, a battery for powering the refrigeration plates is provided on the rear side of the shell, and the refrigeration plates are electrically connected to the battery.

[0009] Furthermore, the condensation net includes a double-layer mesh surface, and a gap is left between the double-layer mesh surface of the condensation net.

[0010] Furthermore, the outside of the breathing tube is connected to an air inlet pipe, the inside of the breathing tube is provided with a one-way ventilation valve opening toward the shell, and the inside of the air inlet pipe is provided with a one-way ventilation valve opening toward the breathing tube;

[0011] A filter for filtering saliva is provided in the middle of the breathing tube, a saliva collecting bottle is provided at the bottom of the filter, and the saliva collecting bottle is connected to the filter through threads.

[0012] Furthermore, the outer side of the breathing tube is wrapped with a layer of electric heating cloth, the exhaust pipe is curved and bends upward, and a bacterial filter is provided at the outer end of the exhaust pipe, and the bacterial filter is connected to the exhaust pipe through a thread.

[0013] Furthermore, the battery is electrically connected to the electric heating fabric.

[0014] Furthermore, a through hole is provided on the front side of the shell, which passes through the shell and the side wall of the condensing cylinder. The side walls of the through hole are respectively connected to the side walls of the shell and the condensing cylinder, so that a closed cavity is formed between the shell and the condensing cylinder. No refrigeration fin is provided at the through hole.

[0015] Furthermore, a sealing plate is hinged on the outer side of the through hole, and the sealing plate is used to open or close the through hole. The connection between the sealing plate and the through hole is subjected to thermal insulation treatment.

[0016] Compared with the related technologies, this application has the following advantages after adopting the above technical solution:

[0017] This application sets up a condensation net, a condensation cylinder, a refrigeration plate and a refrigeration module. The refrigeration module and the refrigeration plate transfer the low temperature to the condensation cylinder, and then cooperate with the double-layer structure of the condensation net to make the moisture in the exhaled breath adhere to the condensation net and quickly condense into water droplets. The condensation speed is fast. By setting up a filter and a saliva collection bottle, the residual saliva is filtered in time to avoid contamination of the condensate. By setting up a bacterial filter, the exhaled breath is purified before being discharged into the air to avoid infection of others.

[0018] The present application is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 is a three-dimensional structural diagram of the housing and condenser (top panel omitted);

[0021] Figure 2 is a front cross-sectional view of the present application;

[0022] FIG3 is a partial cross-sectional view from the left of the present application (omitting the breathing tube portion and the sealing plate).

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Outer shell; 2. Condensation cylinder; 3. Condensation net; 4. Breathing tube; 401. Inlet pipe; 5. Exhaust pipe; 6. Drainage plate; 7. Condensate collection bottle; 8. Refrigeration plate; 9. Battery; 10. Filter; 11. Saliva collection bottle; 12. Bacteria filter; 13. Through hole; 14. Sealing plate. DETAILED DESCRIPTION

[0025] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0026] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0027] As shown in Figures 1, 2 and 3, it includes an outer shell 1, a condensation cylinder 2, a condensation net 3 and a breathing tube 4. The inner side of the outer shell 1 is provided with a condensation cylinder 2, and the inner side of the condensation cylinder 2 is vertically fixed with a condensation net 3 for condensing exhaled air. A breathing tube 4 with one end passing through and extending to the outside of the outer shell 1 is fixedly provided in the middle of the inner wall of the condensation cylinder 2, and an exhaust pipe 5 with one end passing through and extending to the outside of the outer shell 1 is fixedly provided on the inner wall of the condensation cylinder 2. A funnel-shaped drainage plate 6 is provided below the condensation net 3, and a condensate collecting bottle 7 is provided just below the outlet of the drainage plate 6. The outer side of the condensation cylinder 2 is provided with three circles of refrigeration plates 8 evenly distributed radially from top to bottom and used to cool the inside of the condensation cylinder 2. A battery 9 for powering the refrigeration plates 8 is provided on the rear side of the outer shell 1, and the refrigeration plates 8 are electrically connected to the battery 9.

[0028] As an embodiment, the condensation net 3 includes a double-layer mesh surface, and a gap is left between the double-layer mesh surface of the condensation net 3.

[0029] As an embodiment, the outside of the breathing tube 4 is connected to the air inlet pipe 401, the inside of the breathing tube 4 is provided with a one-way ventilation valve opening to the outer shell 1, and the inside of the air inlet pipe 401 is provided with a one-way ventilation valve opening to the breathing tube 4; the middle of the breathing tube 4 is provided with a filter 10 for filtering saliva, and the bottom of the filter 10 is provided with a saliva collection bottle 11, and the saliva collection bottle 11 is connected to the filter 10 by threads.

[0030] As an embodiment, the outer side of the breathing tube 4 is wrapped with a layer of electric heating cloth, the exhaust pipe 5 is curved and bent upward, and a bacterial filter 12 is provided at the outer end of the exhaust pipe 5, and the bacterial filter 12 is connected to the exhaust pipe 5 by threads.

[0031] As an embodiment, the battery 9 is electrically connected to the electric heating fabric.

[0032] As an embodiment, a through hole 13 is opened on the front side of the shell 1, which passes through the side walls of the shell 1 and the condensing tube 2. The side walls of the through hole 13 are respectively connected to the side walls of the shell 1 and the condensing tube 2, so that a closed cavity is formed between the shell 1 and the condensing tube 2. No refrigeration fin 8 is set at the through hole 13.

[0033] As an embodiment, a sealing plate 14 is hinged on the outer side of the through hole 13. The sealing plate 14 is used to open or close the through hole 13. The connection between the sealing plate 14 and the through hole 13 is heat-insulated.

[0034] In this application, the battery 9 is provided with a power switch for the cooling plate 8 and the electric heating cloth. The cooling end of the cooling plate 8 is close to the outer wall of the condensing tube 2. The heat dissipation hole for dissipating heat to the cooling plate 8 is located on the rear side of the outer shell 1. The model of the cooling plate 8 is TEC1-01703. The condensate collection bottle 7 is placed or removed through the through hole 13. The heating temperature of the electric heating cloth is 40 degrees. The double-layer condensation net 3 can speed up the condensation of exhaled air.

[0035] The working process of the present application is as follows: when in use, the breathing tube 4 is placed in the patient's mouth, the switch is turned on, the battery 9 supplies power to the cooling plate 8 and the electric heating cloth, when the patient exhales, the one-way ventilation valve of the air inlet pipe 401 is closed, and the one-way ventilation valve of the breathing tube 4 is opened, so that the exhaled gas passes through the filter 10 and enters the condenser 2; when the patient inhales, the one-way ventilation valve of the air inlet pipe 401 is opened, and the one-way ventilation valve of the breathing tube 4 is closed, so that the patient inhales fresh air and avoids the backflow of exhaled gas. During the breathing process, the electric heating cloth heats the breathing tube 4 to prevent the exhaled gas from flowing back. The exhaled air condenses in the breathing tube 4. When the exhaled air reaches the condenser cylinder 2, the refrigeration plate 8 cools down the inside of the condenser cylinder 2, causing the exhaled air to quickly condense into water droplets when passing through the condensation net 3. The water droplets fall through the guide plate 6 and fall into the condensate collection bottle 7. The condensed exhaled air is sterilized by the bacterial filter 12 and then discharged into the air. After collecting for a period of time, turn off the switch, take out the breathing tube 4 from the patient's mouth, open the sealing plate 14, take out the condensate collection bottle 7 from the through hole 13 and store it separately, unscrew the saliva collection bottle 11 and the bacterial filter 12 for cleaning.

[0036] The above is an example of the best mode of implementation of this application. Any part not described in detail is common knowledge of those skilled in the art. The scope of protection of this application is based on the content of the claims. Any equivalent transformation based on the technical teachings of this application is also within the scope of protection of this application.

Claims

1. An exhaled breath condensate collection device, comprising a housing (1), a condensation cylinder (2), a condensation net (3) and a breathing tube (4), wherein the housing (1) is provided with a condensation cylinder (2), the inner side of the condensation cylinder (2) is provided with a condensation net (3) for condensing exhaled breath fixedly arranged vertically on the inner side of the condensation cylinder (2), the breathing tube (4) having one end penetrating through and extending to the outer side of the housing (1) is fixedly arranged in the middle of the inner side wall of the condensation cylinder (2), and the inner side wall of the condensation cylinder (2) is provided with one end penetrating through and extending to the outer side of the housing (1) an outer exhaust pipe (5), a funnel-shaped drainage plate (6) is arranged below the condensation net (3), a condensate collection bottle (7) is arranged directly below the outlet of the drainage plate (6), three circles of cooling plates (8) are arranged on the outer side of the condensation cylinder (2) from top to bottom and are evenly distributed in the radial direction and are used to cool the inside of the condensation cylinder (2), and a battery (9) for supplying power to the cooling plates (8) is arranged on the rear side of the housing (1), and the cooling plates (8) are electrically connected to the battery (9).

2. According to the exhaled breath condensate collection device of claim 1, the condensation net (3) comprises a double-layer mesh surface, and a gap is left between the double-layer mesh surfaces of the condensation net (3).

3. According to the exhaled breath condensate collection device of claim 1, the outer side of the breathing tube (4) is connected to an air inlet pipe (401), the inner side of the breathing tube (4) is provided with a one-way ventilation valve opening toward the housing (1), and the inner side of the air inlet pipe (401) is provided with a one-way ventilation valve opening toward the breathing tube (4); A filter (10) for filtering saliva is arranged in the middle of the breathing tube (4), a saliva collection bottle (11) is arranged at the bottom of the filter (10), and the saliva collection bottle (11) is connected to the filter (10) via a thread.

4. According to the exhaled breath condensate collection device of claim 1, the outer side of the breathing tube (4) is wrapped with a layer of electric heating cloth, the exhaust pipe (5) is bent and bent upward, and a bacterial filter (12) is provided at the outer end of the exhaust pipe (5), and the bacterial filter (12) is connected to the exhaust pipe (5) by a thread.

5. The exhaled breath condensate collection device according to claim 1, wherein the storage battery (9) is electrically connected to the electric heating fabric.

6. An exhaled breath condensate collection device according to claim 1, wherein a through hole (13) penetrating the side walls of the shell (1) and the condensation cylinder (2) is provided on the front side of the shell (1), and the side walls of the through hole (13) are respectively connected to the side walls of the shell (1) and the condensation cylinder (2), so that a closed cavity is formed between the shell (1) and the condensation cylinder (2), and no cooling plate (8) is provided at the through hole (13).

7. An exhaled breath condensate collection device according to claim 6, wherein a sealing plate (14) is hingedly connected to the outer side of the through hole (13), and the sealing plate (14) is used to open or close the through hole (13), and a connection between the sealing plate (14) and the through hole (13) is subjected to heat insulation treatment.

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