CN112754534A

CN112754534A - Expiration type carbon dioxide collection device

Info

Publication number: CN112754534A
Application number: CN202110058518.0A
Authority: CN
Inventors: 潘劲松; 李焰; 丁宇豪; 聂旭东; 章钱; 贾春红; 刘妍妍; 王征
Original assignee: Anhui Lezhongsheng Medical Technology Co ltd
Current assignee: Anhui Lezhongsheng Medical Technology Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-05-07

Abstract

The invention discloses an expiratory carbon dioxide acquisition device, which comprises a first film, a first shell, an acquisition film, a second shell, a second film, an indicating sheet, an acquisition device inlet, an acquisition film outlet and an acquisition device outlet, wherein the first shell and the second shell form an acquisition device main body; the size area a of the collecting membrane inlet is the same as the size area c of the collecting membrane outlet, and the size area a and the gas flow q form a positive correlation relationship.

Description

Expiration type carbon dioxide collection device

Technical Field

The invention relates to the technical field of breath test devices, in particular to an expiratory carbon dioxide collecting device.

Background

Stomach diseases and stomach cancer have attracted more and more attention. Helicobacter pylori is one of the most common bacterial pathogens, diagnosis is usually carried out by a C14 or C13 expiratory gas examination method at present, carbon dioxide in a human body needs to be collected in the diagnosis process, but the sizes of an inlet and an outlet of the current carbon dioxide collecting device are the same, so that the carbon dioxide is not uniformly absorbed by a collecting membrane, and the carbon content on the collecting membrane detected by an instrument is not accurate.

In summary, the invention provides an expiratory carbon dioxide collecting device.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide an expiratory carbon dioxide collecting device to solve the problem of uneven collection in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an expiratory carbon dioxide acquisition device comprises a first film, a first shell, an acquisition film, a second shell, a second film, an indication sheet, an acquisition device inlet, an acquisition film outlet and an acquisition device outlet, wherein the first shell and the second shell form an acquisition device main body, the two ends of the acquisition device main body are respectively provided with the acquisition device inlet and the acquisition device outlet, the indication sheet is arranged in the acquisition device main body close to the acquisition device inlet end, the acquisition film is arranged in the acquisition device main body close to the acquisition device outlet end, the outer side of the acquisition film is respectively provided with the first film and the second film, one end of the acquisition film is provided with a plurality of acquisition film inlets, and the other end of the acquisition film is provided with a plurality of acquisition film outlets; the size area a of the collecting membrane inlet 8 is the same as the size area c of the collecting membrane outlet 9, and the sum of the areas a and c has positive correlation with the gas flow q passing through the area b.

The indicator is arranged on the indicator piece, when the expiration reaches a certain amount, the color is changed, the expiration is stopped, and the collection is finished.

(III) advantageous effects

Compared with the prior art, after the technical scheme is adopted, the invention has the beneficial effects that:

according to the invention, the sizes of the inlet and the outlet of the collecting membrane are changed, so that the expiratory flow passing through each region b and the area of the region b reach a certain proportion, the collecting membrane absorbs carbon dioxide more uniformly, and the content of carbon atoms detected by an instrument is more accurate.

Drawings

FIG. 1 is a schematic view of an exploded structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

description of reference numerals:

1. a first film; 2. a first housing; 3. collecting a membrane; 4. a second housing; 5. a second film; 6. an indicator sheet; 7. an inlet of a collecting device; 8. a collection membrane inlet; 9. a collection membrane outlet; 10. an outlet of the collecting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown: an expiratory carbon dioxide collecting device comprises a first film 1, a first shell 2, a collecting film 3, a second shell 4, a second film 5, an indicating sheet 6, a collecting device inlet 7, a collecting film inlet 8, a collecting film outlet 9 and a collecting device outlet 10, wherein the first shell 2 and the second shell 4 form a collecting device main body, the two ends of the collecting device main body are respectively provided with the collecting device inlet 7 and the collecting device outlet 10, the indicating sheet 6 is arranged in the collecting device main body close to the collecting device inlet 7 end, the collecting film 3 is arranged in the collecting device main body close to the collecting device outlet 10 end, the outer sides of the collecting films 3 are respectively provided with the first film 1 and the second film 5, one end of the collecting film 3 is provided with a plurality of collecting film inlets 8, and the other end is provided with a plurality of collecting film outlets 9; the size area a of the collecting membrane inlet 8 is the same as the size area c of the collecting membrane outlet 9, and the sum of the areas a and c has positive correlation with the gas flow q passing through the area b.

The indicator sheet 6 is provided with an indicator, when the expiration reaches a certain amount, the color is changed, the expiration is stopped, and the collection is finished.

In this embodiment, when the gas is split and other conditions are the same, the cross-sectional area of the split outlet and the flow rate have a positive correlation, and the larger the cross-sectional area of the outlet, the larger the flow rate, and when abc satisfies the following conditions:

area ratio:

a₁＝c₁，a₂＝c₂………a_n＝c_n

and is

Such that

Thereby realize that the more even flow of expired gas gathers the membrane surface for gather the even carbon dioxide that absorbs of membrane, the instrument detects the content of carbon atom more accurate like this.

The use method of the embodiment comprises the following steps:

inside the user made oneself internal air from collection system import admission gear through exhaling, the air of internal exhalation entered into from gathering the membrane import through the instruction piece, through gathering the membrane, gathers the membrane this moment and begins to absorb the carbon dioxide in the internal exhalation air, then the membrane export is gathered to internal exhaled air rethread, is gone out by the export. The indicator sheet contains an indicator, when the expiration reaches a certain amount, the color is changed, the expiration is stopped, and the collection is finished.

This embodiment's structural design is reasonable, can be through changing the size of gathering the membrane import and gathering the membrane export for exhale flow through every b region reaches certain proportion with the regional area of b, thereby it is more even to reach and gather the membrane and absorb carbon dioxide, and the content that the instrument detected the carbon atom is more accurate like this.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An expiratory carbon dioxide acquisition device is characterized by comprising a first film (1), a first shell (2), an acquisition film (3), a second shell (4), a second film (5), an indication sheet (6), an acquisition device inlet (7), an acquisition film inlet (8), an acquisition film outlet (9) and an acquisition device outlet (10), wherein the first shell (2) and the second shell (04) form an acquisition device main body, the two ends of the acquisition device main body are respectively provided with the acquisition device inlet (7) and the acquisition device outlet (10), the acquisition device main body close to the acquisition device inlet (7) end is internally provided with the indication sheet (6), the acquisition device main body close to the acquisition device outlet (10) end is internally provided with the acquisition film (3), the outer side of the acquisition film (3) is respectively provided with the first film (1) and the second film (5), one end of the acquisition film (3) is provided with a plurality of acquisition film inlets (8), the other end is provided with a plurality of collecting film outlets (9); the size area a of the collecting membrane inlet (8) is the same as the size area c of the collecting membrane outlet (9), and the sum of the areas a and c has positive correlation with the gas flow q passing through the area b.

2. An expiratory carbon dioxide collection device according to claim 1, wherein the indicator sheet (6) is provided with an indicator.

3. An expiratory carbon dioxide collecting device according to claim 1, wherein when the gas is branched and other conditions are the same, the cross-sectional area of the branched outlet has a positive correlation with the flow rate, and the larger the cross-sectional area of the outlet, the larger the flow rate, and when abc satisfies the following conditions:

area ratio:

a₁＝c₁，a₂＝c₂………a_n＝c_n

and is

Such that

Therefore, the exhaled gas flows more uniformly through the surface of the collecting membrane, and the carbon dioxide is uniformly absorbed by the collecting membrane.