CN203252671U

CN203252671U - Gas sampling bag

Info

Publication number: CN203252671U
Application number: CN 201320156351
Authority: CN
Inventors: 黄晋杰; 章高发; 周昀; 金挂花; 黄萍
Original assignee: SHENZHEN ZHONGHE HEADWAY BIO SCI&TECH CO Ltd
Current assignee: SHENZHEN ZHONGHE HEADWAY BIO SCI&TECH CO Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2013-10-30
Anticipated expiration: 2023-03-29

Abstract

The utility model discloses a gas sampling bag. The gas sampling bag comprises a blowing nozzle (20). A gas conveying channel is formed inside the blowing nozzle (20); a gas cover (30) used for opening and sealing the gas conveying channel is arranged outside the blowing nozzle (20). The gas sampling bag further comprises a sampling bag body (10) which is connected with the blowing nozzle (20) and is communicated with the gas conveying channel; the sampling bag body (10) comprises two base materials; each base material comprises an aluminum-coated PET layer (101) arranged in the outer layer, a PE layer (103) arranged in the inner layer and a lamination layer (102) which is located between the aluminum-coated PET layer (101) and the PE layer (103) and is used for adhering the aluminum-coated PET layer (101) and the PE layer (103), wherein the aluminum-coated PET layer (101), the PE layer (103) and the lamination layer (102) are sequentially arranged; the edges of the PE layers (103) are fixed and connected to ensure that an accommodating space is defined by the two base materials. The gas sampling bag can purify collected gas for a breath test and improve detection precision and accuracy.

Description

A kind of gas sampling bag

Technical field

This utility model relates to medical supplies, relates in particular to the gas sampling bag that a kind of breath test is used.

Background technology

Breath test is a kind of noninvasive method that detects helicobacter pylori.Breath test requires testee at first to take the medicine that contains the C13 labelling, detects after by sampler bag Exhaled gasesS being collected subsequently.

At present, the sampler bag that is used for sample gas all is to be formed by the organic material MULTILAYER COMPOSITE, usually adopts during fabrication in gluing mode multilayer material to be combined into a bag.But mostly contain volatile organic component owing to be used for bonding viscose glue, after making the sampling bag, a lot of special gas compositions that the viscose glue volatilization produces may be trapped in and be difficult in the sampler bag discharge.If use this kind sampler bag to gather breath, contain the special gas composition that viscose glue evaporates in the gas sample that will cause gathering, thereby affected accuracy of detection and the accuracy of breath test.

Therefore, need badly a kind of gas sampling bag that can volatilization gas is provided.

The utility model content

Main purpose of the present utility model is, causes the inaccurate defective of breath test testing result for residual exhaust gases in the sampler bag that exists in the prior art, and a kind of gas sampling bag that can volatilization gas is provided.

A kind of gas sampling bag that this utility model provides, comprise blowing nozzle, blowing nozzle inside is provided with gas distribution channel, the outside is provided be used to the gas lid of opening and seal described gas distribution channel, also comprise the sampling bag that is connected and is communicated with described gas distribution channel with described blowing nozzle, described sampling bag comprises by two plate substrates, every described base material comprises and is successively set on outer field PET aluminium coated, the PE layer of internal layer and the described leaching membrane layer that between described PET aluminium coated and described PE layer and with described PET aluminium coated and described PE layer, bonds together, the edge of the described PE layer of described two plate substrates is fixed together, thereby makes described two plate substrates surround a spatial accommodation.

In the above-mentioned gas sampling bag, after solidifying for macromolecular material under molten condition and described PET aluminium coated and described PE layer closely bond, described leaching membrane layer is formed at the thin layer between described PET aluminium coated and the described PE layer.

In the above-mentioned gas sampling bag, described macromolecular material comprises at least a in polyethylene from high pressure process and the high-pressure polypropylene.

In the above-mentioned gas sampling bag, described sampling bag also comprises the surrounding zone that the described PE layer edge Heat Sealing of described two plate substrates becomes, and described surrounding zone being used for of surrounding the district that holds that holds sample gas.

In the above-mentioned gas sampling bag, described blowing nozzle also comprises the connecting portion that is connected by the mode of Heat Sealing in described surrounding zone with described sampling bag.

The beneficial effects of the utility model are: bag of the present utility model is bonded together PET aluminium coated and PE layer by the film that adopts molten condition, and the three has formed a fixing integral body after the cooling, has good air-tightness and physical strength.Owing to do not adopt organic gel bonding in the manufacturing process of bag, so bag can not produce the waste gas that the volatilization because of organic gel causes after completing, and the gas that the respiration test of guaranteeing to gather is used is purer, improves the precision and the accuracy that detect.

Description of drawings

Below in conjunction with drawings and Examples a kind of gas sampling bag of this utility model is described further, in the accompanying drawing:

The structural representation of a kind of gas sampling bag that Fig. 1 provides for this utility model;

Fig. 2 is the cross-sectional structure sketch map that consists of the base material of sampling bag 10 among Fig. 1.

The specific embodiment

Only below describe in detail in essence as exemplary and be not intended to limit the present invention or application of the present invention and use.In addition, be not to be intended to be subject to the theory any clear and definite or that comprise that proposes in aforementioned technical field, background technology or the following detailed description.

The gas sampling bag that this utility model provides is mainly used in gathering the gas that breathalyse is used in breath test.

Referring to figs. 1 to Fig. 2, this gas sampling bag comprises blowing nozzle 20, and is positioned at the sampling bag 10 that blowing nozzle 20 connects.Blowing nozzle 20 is used for blowing for tested person person.Blowing nozzle 20 inside are provided with gas distribution channel, and the outside is provided be used to the gas lid 30 of opening and seal described gas distribution channel.Sampling bag 10 adopts composite to make, and is communicated with gas distribution channel, is used for holding sample gas.In use, tested person person in use opens gas lid 30, the air blowing of aiming at blowing nozzle 20, and gas is entered in the sampling bag 10 by gas distribution channel.When detecting, can push sampling bag 10, make the gas that wherein stores outwards export checkout equipment to by gas distribution channel.

Sampling bag 10 comprises two flat base materials.Base material is composited by multilayer material, its skin (namely being located at one deck of sampling bag 10 outer surfaces) is polyethylene terephthalate (PET) aluminium coated 101, internal layer (namely being located at one deck of sampling bag 10 inner surfacies) is polyethylene (PE) layer 103, and film 102 is between PET aluminium coated 101 and PE layer 103.Unique distinction of the present utility model is, outer field PET aluminium coated 101 and internal layer PE layer 103 are bonded together both by film 102.When film 102 is in molten condition, be packed into the space between PET aluminium coated 101 and the internal layer PE layer 103, after the compacting cooling, the three is fixedly connected with formation base material in aggregates.Be understandable that the film 103 that adopts in the method is thin film, use amount is little.

In the present embodiment, at least a the making that film 103 adopts in high-pressure polyethylene material and the high-pressure polypropylene, because polyethylene from high pressure process, high-pressure polypropylene material easily make PET aluminium coated 101, PE layer 103 strong bond together, and nonpoisonous and tasteless, but can not produce the waste gas of interference sample testing result.In other embodiment, film 103 also can adopt other macromolecular materials nonpoisonous and tasteless and not volatile and that PET aluminium coated 101, PE layer 103 are bonded together to make.The forming process of this base material is: first polyethylene from high pressure process or high-pressure polypropylene particle are added in the film machine, extrude polyethylene from high pressure process or the high-pressure polypropylene of melting through melting, plasticizing; The polyethylene from high pressure process of melting or high-pressure polypropylene are filled to space between PET aluminium coated 101 and the internal layer PE layer 103; The polyethylene from high pressure process of melting or high-pressure polypropylene and PET aluminium coated 101 and internal layer PE layer 103 form one deck film 102 after the cooling compacting, between PET aluminium coated 101 and PE layer 103, the three is bonding in aggregates, has consisted of above-mentioned base material.So just replaced the bonding fixed form of organic gel because organic gel when bonding consumption large, and in the subsequent treatment of gas sampling bag, easily in gas sampling bag, produced waste gas, affect accuracy of detection and accuracy.Outermost layer at sampling bag 10 namely also comprises one deck ink lay at the skin of base material, because the title of printing bag or other printed words form.

PE layer 103 edge in the two above-mentioned plate substrates are fixed together, thereby make two plate substrates form a spatial accommodation, have consisted of sampling bag 10 this moment.In this preferred embodiment, the surrounding zone 11 that PE floor 103 edge in two plate substrates are fixedly connected to form and by described surrounding zone 11 be surrounded as be used to hold sample gas hold the district 12.Be fixedly connected with the mode that adopts Heat Sealing, this connected mode can not stayed pore, can not cause collecting that loose gas sends out in the process of gas, has increased seal.Blowing nozzle 20 also adopts the mode of Heat Sealing to be fixedly connected with in surrounding zone 11 with sampling bag 10, shown in A among Fig. 1.The flat connecting portion of an one fixed width (width is less than the width of surrounding zone 11, and length is less) (not shown, be prior art, be not repeated herein) is arranged in the blowing nozzle 20, be connected with surrounding zone 11 by this connecting portion.Certainly, be fixedly connected with and also can adopt rivet connection, screw connection etc. to be fixedly connected with mode.In the present embodiment, blowing nozzle 20 is positioned at the top of described surrounding zone 11, and in a further embodiment, this blowing nozzle 20 also can be positioned at side and the bottom of described surrounding zone 11.Gas distribution channel in the blowing nozzle 20 stretches into holding in the district 12 of sampling bag 10, gas can be entered and be stored in to hold in the district 12.

The gas sampling bag that adopts this utility model to provide need not use organic gel bonding sampling bag in manufacturing process, make it guarantee not contain waste gas or impurity in the gas sampling bag, thereby has improved precision and accuracy that breathalyse detects.

Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of this utility model claims.

Claims

1. gas sampling bag, comprise blowing nozzle (20), described blowing nozzle (20) inside is provided with gas distribution channel, the outside is provided be used to the gas lid (30) of opening and seal described gas distribution channel, it is characterized in that, also comprise the sampling bag (10) that is connected with described blowing nozzle (20) and is communicated with described gas distribution channel, described sampling bag (10) comprises two plate substrates, every described base material comprises and is successively set on outer field PET aluminium coated (101), the PE layer (103) of internal layer and be positioned at described PET aluminium coated (101) and described PE layer (103) between and leaching membrane layer (102) that described PET aluminium coated (101) and described PE layer (103) are bonded together, the edge of the described PE layer (103) of described two plate substrates is fixed together, thereby makes described two plate substrates surround a spatial accommodation.

2. gas sampling bag according to claim 1, it is characterized in that, described leaching membrane layer (102) closely bond for macromolecular material under molten condition and described PET aluminium coated (101) and described PE layer (103) and solidify after be formed at thin layer between described PET aluminium coated (101) and the described PE layer (103).

3. gas sampling bag according to claim 2 is characterized in that, described macromolecular material comprises at least a in polyethylene from high pressure process and the high-pressure polypropylene.

4. gas sampling bag according to claim 1, it is characterized in that, described sampling bag (10) also comprises the surrounding zone (11) that described PE layer (103) the edge Heat Sealing by described two plate substrates becomes, and described surrounding zone (11) being used for of surrounding hold sample gas hold district (12).

5. gas sampling bag according to claim 4 is characterized in that, described blowing nozzle (20) also comprises and described sampling bag (10) connecting portion that the mode by Heat Sealing is connected in described surrounding zone (11).