CN104257384B - Handheld suction and filtration device - Google Patents
Handheld suction and filtration device Download PDFInfo
- Publication number
- CN104257384B CN104257384B CN201410511275.1A CN201410511275A CN104257384B CN 104257384 B CN104257384 B CN 104257384B CN 201410511275 A CN201410511275 A CN 201410511275A CN 104257384 B CN104257384 B CN 104257384B
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- China
- Prior art keywords
- air
- filter box
- check valve
- contact pin
- upper casing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The invention relates to a handheld suction and filtration device. The device comprises an upper shell (1), a lower shell (4) and a filter box (2) in the middle of the device, wherein a suction passage comprises a check valve (8), and a breathing passage comprises a check valve (7); the front part of the upper shell (1) of the device comprises a cavity (10) connected with an oral mouthpiece and a contact pin (9) connected with an air bag, air current enters from a bottom opening (6) of the lower shell (4) when the device is used for sucking air, and then is sucked into the human body by the filter box (2), the check valve (8) and the front end (10) of the upper shell, and the air current enters the filter box (3) through the contact pin (9) and then enters a testing apparatus through the check valve (7) and a pipeline (5) connected with the testing apparatus.
Description
Technical field
The present invention relates to a kind of art of filters of endogenous exhaled gas detection.
Background technology
Exhale detection currently as an emerging medical diagnosis technology, widely used in clinic.Such as characteristics of contaminated respiratory droplets
Nitric oxide is the important symbol thing of airway inflammation,14CO2It is mark of gastric ulcer etc., the professional and accurate of detection of exhaling
Property be just the quick of mankind's medical diagnosis and treat, convenient, safety plays further important effect.In expiratory air main someone body of human body
Source property gas and the in the air part sucking remain in the gas composition in human body.
Due to human endogenous' property gas molecule, for the gas molecule in air, content is extremely low, therefore the sky of suction
The exhaled gas having influence on our reality are detected by the gas content remaining in gas in human body.In order to solve this problem, improve
Expiration detection accuracy, tests to exhaled NO, and ATS/ERS Organisation recommendations " should be installed NO filter on detecting instrument or allow
Detected person sucks the gas without NO ".A kind of scrubber is disclosed, including at least one inlet hole and in CN1688251A
One outlet opening simultaneously includes filtering material, and the setting of second outlet hole is separated necessarily with first outlet hole and any inlet hole in the housing
The position of distance, the filtration in the air NO flowing through this scrubber, but this device is placed in instrument internal, during Long-Time Service, more
Change cumbersome, also only NO in suction gas is filtered, expiratory air is not filtered.
The saliva when exhaling for the experimenter, the spittle, swill, pathogen etc. all can be sprayed, adhere to and be deposited on detection
In instrument pipeline loop, pollute, these pipelines can not thoroughly be cleaned, sterilize when each testee uses, pole
Be easily caused cross-infection, CN203075786U discloses a kind of breath device, including upper lower casing and its between filter membrane,
Upper casing connects lower casing of being difficult to articulate and connects tool interface system, filter membrane can effectively adsorb saliva in expiratory air, the spittle, swill,
Bacterium etc..
In order to the filtration of respiratory is unified on a device, the suction filter of prior art by a threeway and
One filter box composition, air-flow trend when controlling air-breathings and exhale by two umbellate form valves, but this structure have following
Shortcoming：Exhale and air-breathing has shared one section of body, these pipelines thoroughly can not be cleaned when each testee uses,
Sterilization, easily leads to cross-infection；Filter box is exposed to the outside it is impossible to ensure life-span of filtering material well；Three-port structure is difficult in hand
Hold and accomplish good grip feeling；Suction filter of the prior art is only used for mouth and exhales, and can not connect airbag and also cannot do
For zero reference.
Content of the invention
The improvement of the air-breathing filter that the present invention is directed to problem above and proposes is so that air-breathing and expiration respectively have one section solely
Vertical path, prevents cross-infection, will filter box internally placed raising service life, and upper lower casing design can be filtered with dismounting and change
Box, upper lower casing is combined into a set of tubular structure, facilitates hand-held, and the addition of contact pin can connect airbag, can at the opening of upper casing
Sealed with an airtight upper lid, thus carrying out the detection of air zero reference value.
The present invention relates to a kind of hand-held air-breathing filter, including：Upper casing（1）, lower casing（4）And the first of centre
Filter box（2）With the second filter box（3）, wherein lower casing（4）Bottom have an opening（6）, upper casing（1）Front end includes a cavity
（10）And the contact pin of（9）, in device, have two the second check valves（7）With（8）.
Described device can be divided into intake channel and air outlet passage, and wherein intake channel is by lower casing（4）Opening（6）, first
Filter box（2）, check valve (8) and cavity（10）Composition；Air outlet passage is by contact pin（9）, second filter box（3）, check valve (7) and pipe
Road（5）Composition, check valve (8) is placed in the first filter box（2）Rear end, check valve (7) is placed in the second filter box（3）Rear end, pass through
By intake channel with air outlet passage independently of one another, this exhales and air-breathing does not have in breath tester for check valve (8) and check valve (7)
There is shared pipeline it is therefore prevented that cross-infection.
Upper casing（1）Middle cavity（10）With the consistent size of being difficult to articulate being connected oral cavity, be set as standard size 22mm, contact pin
（9）Airbag can be connected, customized according to airbag size, less than or equal to 12mm.
The first filter box in described hand-held air-breathing filter（2）For filtering the component to be measured sucking in gas, when
When carrying out expiration nitric oxide test, the first filter box（2）Filtering material be potassium permanganate or the Gao Meng that is combined with appropriate level carbon
Sour potassium；Second filter box（3）For saliva, the spittle, swill, bacterium in filtering exhalation, its filtering material is that fiber is high
Molecular material, drier and medical adhesive-bonded fabric.
Upper casing（1）And lower casing（4）It is fastened and connected or threaded, upper casing（1）And lower casing（4）After opening, therein first
Filter box（2）With the second filter box（3）Can dismounting and change.Upper casing（1）And lower casing（4）It is combined into sleeve-shaped integral type knot after connection
Structure, facilitates hand-held, filter box is enclosed in inside device simultaneously, extends its service life.
Carry out during air-breathing air-flow using described device from lower casing（4）Bottom opening（6）Enter, filter box through first（2）、
First check valve（8）With upper casing front end（10）Connect is difficult to articulate, and sucks human body, during expiration, air-flow is from contact pin（9）Enter the second filter
Box（3）Pass through the second check valve again（7）Pipeline with connecting test instrument（5）Enter tester, air suction way leads to exhaling
Road independently of one another, will not interfere with each other.
With covering in sealing（11）Can be by upper casing（1）Opening at close, ambient atmos movement locus in a device be U
Shape, charge air flow is from lower casing（4）Bottom opening（6）Enter, filter box through first（2）, the first check valve（8）With upper casing front end
（10）Place, air-flow of giving vent to anger is from front end（10）Middle contact pin（9）Enter the second filter box（3）Pass through the second check valve again（7）And even
Connect the pipeline of tester（5）Enter tester, the gas now entering in instrument has filtered component to be measured in the air
Zero with reference to air-flow.
The present invention solves when exhaling detection, the interference of component to be measured in surrounding air during air-breathing, expiratory air during expiration
The interference of other impurities in body, and carried out improvement on the basis of realizing this function so that air-breathing and expiration respectively have one section solely
Vertical path, prevents cross-infection.
Present configuration is simple, and the design of upper lower casing makes it can filter box with dismounting and change, extend service life, their groups
Synthesize a set of tubular structure, facilitate hand-held, easily manufactured it is easy to promotion and implementation, during Long-Time Service.
In the present invention, the addition of contact pin allows this device to be directly connected to airbag, and available one close at the opening of its upper casing
Close lid to seal, such that it is able to directly carry out the detection of air zero reference value.
Brief description
Fig. 1. the utility model apparatus structure schematic diagram.
Specific embodiment
Fig. 1 show schematically show the section of air-breathing filter, and device is by upper casing（1）, lower casing（4）And the of centre
One filter box（2）And second filter box（3）Composition, air suction way includes a check valve (8), and exhalation path includes one second
Check valve（7）, the upper casing of device（1）Preamble part include the cavity being difficult to articulate that can connect oral cavity（10）And one can connect
The contact pin of airbag（9）.
Embodiment one
Carry out during air-breathing air-flow using this device from lower casing（4）Bottom opening（6）Enter, filter box through first（2）,
One check valve（8）With upper casing front end（10）Connect is difficult to articulate, and in the air nitric oxide is by the first filter box（2）In potassium permanganate mistake
After filter, no nitric oxide production air is inhaled into human body, and when being exhaled, expiratory air air-flow is from contact pin（9）Enter the second filter box（3）
Pass through the second check valve again（7）, now the saliva in expiratory air, the spittle, remaining phlegm, swill, bacterium etc. are by the second filter box（3）
After filtration, by the pipeline of connecting test instrument（5）Enter tester.
Embodiment two
When carrying out zero reference test using this device, with covering in sealing（11）Can be by upper casing（1）Opening at close, extraneous
Gas movement locus in a device is U-shaped, and charge air flow is from lower casing（4）Bottom opening（6）Enter, filter box through first
（2）, the first check valve（8）With upper casing front end（10）Place, air-flow of giving vent to anger is from front end（10）Middle contact pin（9）Enter the second filter box
（3）Pass through the second check valve again（7）Pipeline with connecting test instrument（5）Enter tester, now enter the gas in instrument
Body has filtered zero reference air-flow of component to be measured in the air.
The invention is not restricted to the embodiment being shown and described, but any changes and improvements are all in appended claims
In protection domain.
Claims (2)
1. a kind of hand-held air-breathing filter, by upper casing（1）, lower casing（4）And the filtering material of centre forms, its feature exists
In：Described upper casing（1）Front end includes cavity（10）And contact pin（9）；Described device is divided into intake channel and air outlet passage, and air inlet is led to
Route lower casing（4）Opening（6）, first filter box（2）, the first check valve（8）And cavity（10）Composition；Air outlet passage is by contact pin
（9）, second filter box（3）, the second check valve（7）And pipeline（5）Composition, intake channel is independent of one another with air outlet passage；Described
One check valve（8）It is placed in the first filter box（2）Rear end；Described second check valve（7）It is placed in the second filter box（3）Rear end；Described
Upper casing（1）In cavity（10）For connecting being difficult to articulate of oral cavity；Described contact pin（9）For connecting airbag, described airbag and contact pin
（9）, second filter box（3）, the second check valve（7）And pipeline（5）Connect in order.
2. hand-held air-breathing filter according to claim 1 it is characterised in that：Described upper casing（1）Opening portion
A diameter of 22mm；Described contact pin（9）Diametric fit airbag bore customization, less than or equal to 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511275.1A CN104257384B (en) | 2014-09-29 | 2014-09-29 | Handheld suction and filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511275.1A CN104257384B (en) | 2014-09-29 | 2014-09-29 | Handheld suction and filtration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104257384A CN104257384A (en) | 2015-01-07 |
| CN104257384B true CN104257384B (en) | 2017-02-15 |
Family
ID=52149056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410511275.1A Active CN104257384B (en) | 2014-09-29 | 2014-09-29 | Handheld suction and filtration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104257384B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388278B (en) * | 2015-12-04 | 2017-12-19 | 无锡市尚沃医疗电子股份有限公司 | A kind of hand-held respiration filtering device |
| CN113633273A (en) * | 2020-04-27 | 2021-11-12 | 浙江亿联康医疗科技有限公司 | Breath detection filter device, mouthpiece and breath detection method for preventing cross contamination |
| CN113750671A (en) * | 2021-10-12 | 2021-12-07 | 碧波庭国际有限公司 | Negative pressure massage main machine with embedded filter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7118537B2 (en) * | 2001-04-30 | 2006-10-10 | Respiratory Research, Inc. | Method and device for collecting and analyzing exhaled breath |
| SE0202741D0 (en) * | 2002-09-16 | 2002-09-16 | Aerocrine Ab | scrubber |
| US7549316B2 (en) * | 2002-10-08 | 2009-06-23 | Ric Investments, Llc. | Integrated sample cell and filter and system using same |
| CN201029890Y (en) * | 2007-05-21 | 2008-03-05 | 侯艳 | Lower respiratory tract droplet collecting device |
| CN101243978B (en) * | 2008-03-31 | 2010-08-11 | 南京星芒科技咨询有限公司 | Respiration sampling instrument and method of sampling respiration |
| AU2013254125B2 (en) * | 2012-04-24 | 2017-04-06 | Aerocrine Ab | Handle device and breath analysis device |
| CN203075786U (en) * | 2013-01-25 | 2013-07-24 | 王国强 | Breathing filtering device used for testing lung functions |
| CN204106011U (en) * | 2014-09-29 | 2015-01-21 | 无锡市尚沃医疗电子股份有限公司 | A kind of hand-held inhale filter device |
-
2014
- 2014-09-29 CN CN201410511275.1A patent/CN104257384B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104257384A (en) | 2015-01-07 |
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