CN212988940U

CN212988940U - Expired gas collecting device

Info

Publication number: CN212988940U
Application number: CN202021932042.6U
Authority: CN
Inventors: 陈焕文; 揭非凡; 朱腾高
Original assignee: East China Institute of Technology
Current assignee: Beijing Avic Baofu Technology Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-04-16
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses an expired air collecting device, which comprises a collecting bottle, a cover pad component, a cap, an expired air blow nozzle, a silica gel hose and a stainless steel needle; the cover gasket assembly is arranged at the bottle mouth of the collecting bottle and used for sealing the bottle mouth of the collecting bottle, and the cover cap is fixed on the outer side of the cover gasket assembly; the middle of block is equipped with fretwork portion, and the stainless steel needle is hollow structure, and the one end of stainless steel needle is the needle point structure, and the needle point structure passes fretwork portion and lid pad subassembly in proper order to reach the bottom of the bottle of collecting bottle, the other end and the silica gel hose connection of stainless steel needle, the one end that the stainless steel needle was kept away from to the silica gel hose is connected with the expiration blow gun, and the inside of expiration blow gun is equipped with the check valve, and the gas flow direction of check valve is from expiration blow gun to the silica gel hose. The utility model discloses can solve prior art complex operation, the problem that appears leaking gas easily.

Description

Expired gas collecting device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an expiratory gas collection device.

Background

The expired gas collecting device is one of the important instruments in medical tests, and for example, the expired gas collecting device is used in diagnosis of stomach diseases and evaluation of inflammatory factors, and is used for collecting expired gas of a patient, and then the expired gas collected in a bottle is analyzed by matching with a related detection instrument.

The conventional expired air collecting device blows air into a collecting bag through a straight-through plastic pipe connector, and after the air blowing is finished, the collecting bag is manually sealed through a sealing plug, so that the operation is complex, and the problem of air leakage is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expiratory gas collecting device to solve prior art complex operation, the problem that leaks gas appears easily.

An expiratory gas collecting device comprises a collecting bottle, a cover pad assembly, a cap, an expiratory blow nozzle, a silica gel hose and a stainless steel needle;

the cap gasket assembly is arranged at the bottle mouth of the collecting bottle and seals the bottle mouth of the collecting bottle, and the cap is fixed on the outer side of the cap gasket assembly;

the centre of block is equipped with fretwork portion, the stainless steel needle is hollow structure, the one end of stainless steel needle is the needle point structure, the needle point structure passes in proper order fretwork portion with the flap subassembly, and reachs the bottom of the bottle of collecting bottle, the other end of stainless steel needle with the silica gel hose is connected, the silica gel hose is kept away from the one end of stainless steel needle with the expiration blow gun is connected, the inside of expiration blow gun is equipped with the check valve, the gas flow direction of check valve is for following the expiration blow gun arrives the silica gel hose.

According to the utility model provides an expired air gas collection device, when using, the patient only needs to exhale through the expiration blow gun, the gas of production can be through check valve flow to silica gel hose, realize gas collection in finally entering into the receiving flask through the needle point structure of stainless steel needle, seal up the bottleneck of receiving flask through the lid pad subassembly, and the lid pad subassembly is fixed through the block cap, sealed effect has been guaranteed, the check valve can prevent to blow back gas reflux in the back bottle simultaneously, finally effectively realize leak protection gas, furthermore, adopt the device and need not manual seal again, it is more convenient to operate.

In addition, according to the utility model provides an expiration gas collecting device can also have following additional technical characterstic:

further, the inner side of the cap is respectively provided with a step structure and an internal thread structure, the bottle mouth of the collecting bottle is provided with an external thread structure, the internal thread structure is matched with the external thread structure, and the step structure is matched with the cap gasket assembly.

Further, expiration blow gun includes blow gun pipe, connecting pipe and valve mount pad, the check valve is installed in the valve mount pad, the check valve respectively with blow gun pipe, connecting pipe are connected, the connecting pipe with the silica gel hose connection.

Further, the cover and pad assembly comprises a first gasket, a hydrophobic filter membrane layer and a second gasket which are arranged from top to bottom in sequence.

Furthermore, the first gasket and the second gasket are both provided with gas reflux holes, and the gas reflux holes in the first gasket correspond to the gas reflux holes in the second gasket.

Further, the first gasket and the second gasket are both PTFE silica gel pads.

Further, the filtration pore size of the hydrophobic filter membrane layer is 0.1 μm.

Further, one surface of the first gasket, which faces away from the hydrophobic filter membrane layer, is coated with an active nano silver layer.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an expiratory gas collecting device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an expiratory gas collecting device according to an embodiment of the invention;

fig. 3 is an enlarged view of circle II in fig. 2.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, an embodiment of the present invention provides an expiratory gas collecting device, which includes a collecting bottle 10, a cap-pad assembly 20, a cap 30, an expiratory mouthpiece 40, a silicone hose 50, and a stainless steel needle 60.

The collection bottle 10 may in particular be an elongated glass bottle.

The cap and gasket assembly 20 is installed at the mouth of the collecting bottle 10 and seals the mouth of the collecting bottle 10, and the cap 30 is fixed at the outer side of the cap and gasket assembly 20.

The centre of block 30 is equipped with fretwork portion 301, stainless steel needle 60 is hollow structure, the one end of stainless steel needle 60 is the needle point structure, the needle point structure passes in proper order fretwork portion 301 with the cap pad subassembly 20, and reachs the bottom of the bottle of receiving flask 10, the other end of stainless steel needle 60 with silica gel hose 50 is connected, just silica gel hose 50 keeps away from the one end of stainless steel needle 60 with expiration blow gun 40 is connected, the inside of expiration blow gun 40 is equipped with check valve 401, the gas flow direction of check valve 401 is followed expiration blow gun 40 arrives silica gel hose 50.

The gas exhaled by the patient through the exhalation mouthpiece 40 firstly enters the silicone hose 50 through the one-way valve 401, then enters the stainless steel needle 60, and finally enters the collection bottle 10 to realize gas collection.

Specifically, the inboard of block 30 is equipped with stair structure 302 and internal thread structure 303 respectively, be equipped with external thread structure on the bottleneck of receiving flask 10, internal thread structure 303 with the equipment of receiving flask 10 with block 30 is realized to external thread structure cooperation, stair structure 302 with the cooperation of block subassembly 20 to spacing and fixed are carried out to block subassembly 20.

Expiration blow nozzle 40 includes blow nozzle pipe 41, connecting pipe 42 and valve mount pad 43, check valve 401 is installed in the valve mount pad 43, check valve 401 respectively with blow nozzle pipe 41, connecting pipe 42 are connected, connecting pipe 42 with silica gel hose 50 connects.

The cover pad assembly 20 includes a first pad 21, a hydrophobic filter membrane layer 22 and a second pad 23 which are sequentially arranged from top to bottom. Specifically, the first gasket 21 and the second gasket 22 both adopt PTFE silica gel pads. The hydrophobic filter membrane layer 22 is micron-sized, and the filtering pore size is 0.1 μm. The hydrophobic filter membrane layer 22 enables the passage of gas.

The first gasket 21 and the second gasket 23 are both provided with the gas return holes 70, and the gas return holes 70 on the first gasket 21 correspond to the gas return holes 70 on the second gasket 23. The gas return holes 70 are adapted to communicate with the atmosphere to ensure that the gas exhaled by the patient can smoothly enter the collection bottle 10, while the hydrophobic filter layer 22 is still sealed (no gas return holes 70 are provided in the hydrophobic filter layer 22), and the filter pore size of the hydrophobic filter layer 22 is 0.1 μm, which can block the gas with a particle size larger than 0.1 μm from leaving the collection bottle 10, while the gas exhaled by the patient is larger than 0.1 μm, thereby preventing the gas exhaled by the patient and collected in the collection bottle 10 from leaking out of the gas return holes 70.

Preferably, the side of the first gasket 21 facing away from the hydrophobic filter membrane layer 22 is coated with an active nano silver layer.

According to the gaseous collection device of expiration that this embodiment provided, when using, the patient only needs to exhale through expiration blow gun 40, the gaseous flow direction silica gel hose 50 of check valve 401 of passing through of production, realize gaseous collection in finally entering into receiving flask 10 through the needle point structure of stainless steel needle 60, seal the bottleneck of receiving flask 10 through cap gasket subassembly 20, and cap gasket subassembly 20 is fixed through bonnet 30, sealed effect has been guaranteed, check valve 401 can prevent to blow the interior gaseous backward flow of back bottle simultaneously, finally effectively realize leak protection gas, adopt the device and need not manual seal again, it is more convenient to operate.

In addition, the collection bottle 10 may be pre-filled with 75% alcohol for inactivation. The filtering effect can be realized through the arranged active nano silver layer. And by the cooperation of 75% alcohol, the hydrophobic filter membrane layer 22 and the hydrophobic filter membrane layer 22, triple protection is realized.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The expired gas collection device is characterized by comprising a collection bottle, a cover pad assembly, a cap, an expired air blow nozzle, a silica gel hose and a stainless steel needle;

2. The exhaled gas collection device according to claim 1, wherein the inner side of the cap is provided with a step structure and an internal thread structure, respectively, the mouth of the collection bottle is provided with an external thread structure, the internal thread structure is matched with the external thread structure, and the step structure is matched with the cap and gasket assembly.

3. The expiratory gas collection device of claim 1, wherein the expiratory nozzle comprises a nozzle tube, a connecting tube and a valve mounting seat, the one-way valve is mounted in the valve mounting seat, the one-way valve is respectively connected with the nozzle tube and the connecting tube, and the connecting tube is connected with the silicone hose.

4. The expiratory gas collection device of claim 1, wherein the cover pad assembly comprises a first pad, a hydrophobic filter membrane layer and a second pad arranged in sequence from top to bottom.

5. The expiratory gas collection device of claim 4, wherein the first gasket and the second gasket are each provided with a gas return hole, and the gas return holes on the first gasket and the second gasket are located correspondingly.

6. The expiratory gas collection device of claim 4, wherein the first gasket and the second gasket are both PTFE silicone gaskets.

7. The exhaled breath gas collection apparatus of claim 4, wherein the filtration pore size of the hydrophobic filter membrane layer is 0.1 μm.

8. The exhaled breath gas collection device of claim 4, wherein the side of the first gasket facing away from the hydrophobic filter membrane layer is coated with an active nano silver layer.