CN1602976A - Self-cleaning medical breathing equipment gas filter - Google Patents
Self-cleaning medical breathing equipment gas filter Download PDFInfo
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- CN1602976A CN1602976A CN 03151442 CN03151442A CN1602976A CN 1602976 A CN1602976 A CN 1602976A CN 03151442 CN03151442 CN 03151442 CN 03151442 A CN03151442 A CN 03151442A CN 1602976 A CN1602976 A CN 1602976A
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 13
- 238000004140 cleaning Methods 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000001179 sorption measurement Methods 0.000 claims abstract description 20
- 239000000645 desinfectant Substances 0.000 claims description 20
- 230000000844 anti-bacterial effect Effects 0.000 claims description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims description 14
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 239000003814 drug Substances 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 244000005700 microbiome Species 0.000 abstract description 9
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 201000008827 tuberculosis Diseases 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 2
- 208000031888 Mycoses Diseases 0.000 abstract 1
- 206010035664 Pneumonia Diseases 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 210000002345 respiratory system Anatomy 0.000 abstract 1
- 230000002747 voluntary effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 27
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 206010003757 Atypical pneumonia Diseases 0.000 description 1
- 229940123208 Biguanide Drugs 0.000 description 1
- 206010024179 Legionella infections Diseases 0.000 description 1
- 208000004023 Legionellosis Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000004283 biguanides Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- -1 iodine, aldehydes Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
(1)技术领域(1) Technical field
本发明涉及一种医疗器械，尤其是指一种自净式医用呼吸设备气体过滤器。The invention relates to a medical device, in particular to a self-cleaning gas filter for medical breathing equipment.
(2)背景技术(2) Background technology
传统的气体过滤器是以物理阻留的方法，将气体进行过滤，以滤除尘埃和微生物等颗粒，以达到净化气体的目的。而被滤除的微生物等颗粒被过滤器内滤网、纤维滤纸及其它各种吸附和过滤材料机械地拦截在过滤器内，因过滤器内各种过滤材料均无杀灭微生物的作用，所以，留存在过滤器内的这些微生物在合适的温度下，可迅速地生长繁殖，即，发生所谓的“二次污染”问题。The traditional gas filter uses the method of physical retention to filter the gas to filter out particles such as dust and microorganisms, so as to achieve the purpose of purifying the gas. The filtered microorganisms and other particles are mechanically intercepted in the filter by the filter screen, fiber filter paper and other various adsorption and filter materials in the filter. Because all the filter materials in the filter have no effect on killing microorganisms, so , These microorganisms remaining in the filter can grow and reproduce rapidly at a suitable temperature, that is, the so-called "secondary pollution" problem occurs.
(3)发明内容(3) Contents of the invention
本发明的目的是为了解决上述现有技术的问题，提出一种呼吸设备过滤器内的吸附和过滤材料具有杀菌消毒作用的以减少二次污染的自净式医用呼吸设备气体过滤器。The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a self-cleaning gas filter for medical breathing equipment with the adsorption and filter material in the filter of the breathing equipment having a sterilizing effect to reduce secondary pollution.
本发明的目的是这样实现的：The purpose of the present invention is achieved like this:
一种自净式医用呼吸设备气体过滤器，包括：A self-cleaning gas filter for medical breathing equipment, comprising:
外壳；进气接口，设置于外壳的一端，是待过滤气体的入口；出气接口，设置于外壳的另一端，是过滤后气体的出口；以及过滤材料，设置于所述的外壳内，所述的过滤材料至少有三层：Shell; the air inlet port is set at one end of the shell and is the inlet of the gas to be filtered; the gas outlet port is set at the other end of the shell and is the outlet of the filtered gas; and the filter material is set in the shell, the The filter material has at least three layers:
(1)消毒抑菌过滤层，设置于接近所述的进气接口的位置，由吸附有消毒剂的粗滤网组成；(1) The disinfection and antibacterial filter layer is arranged at a position close to the air inlet port and is composed of coarse filter screens adsorbed with disinfectants;
(2)活性炭吸附层，设置于所述的消毒抑菌过滤层后面的位置，由活性炭组成，活性炭吸附层与所述的消毒抑菌过滤层之间有一带有小孔的支撑隔板相隔；(2) activated carbon adsorption layer is arranged at the position behind the described disinfection and antibacterial filter layer, and is made up of activated carbon, and a support dividing plate with aperture is separated between the activated carbon adsorption layer and the described disinfection and antibacterial filter layer;
(3)微孔高效过滤层，设置于所述的活性炭吸附层后面接近所述的出气接口的位置，由微孔滤纸组成，微孔高效过滤层与所述的活性炭吸附层之间有一带有小孔的支撑隔板相隔。(3) The microporous high-efficiency filter layer is arranged at the position close to the air outlet interface behind the described activated carbon adsorption layer, and is made up of microporous filter paper. There is a band between the microporous efficient filter layer and the described activated carbon adsorption layer Small holes are separated by supporting partitions.
本发明的效果：Effect of the present invention:
本发明的自净式医用呼吸设备气体过滤器由于对患者呼出的气体进行吸附和过滤的材料具有杀菌消毒的作用，可以杀灭过滤器内俘获的微生物，减少了二次污染，尤其是可以防止废弃过滤器的二次污染的发生，有利于净化医院周围的空气。因此，本发明除了应用于医用呼吸设备气体排出的过滤外，特别适用于对“非典型性肺炎”或开放性结核、军团菌感染等传染病人呼出气体的过滤消毒，对保障一线医务人员的身体健康有积极意义，临床推广使用有较大的社会效益。本发明也适用于医用负压吸引气体的过滤以及其它各种空气净化设备中的气体过滤。本发明加工制造方便且成本低，容易推广使用。The self-cleaning gas filter for medical breathing equipment of the present invention has the function of sterilizing and sterilizing the material that absorbs and filters the gas exhaled by the patient, can kill the microorganisms captured in the filter, reduce secondary pollution, and especially prevent waste The occurrence of secondary pollution of the filter is beneficial to purify the air around the hospital. Therefore, in addition to being applied to the filtration of gas discharge from medical respiratory equipment, the present invention is especially suitable for the filtration and disinfection of exhaled gas from infectious patients such as "atypical pneumonia" or open tuberculosis, Legionella infection, etc. Health has positive significance, and clinical promotion and use have greater social benefits. The invention is also applicable to the filtration of medical negative pressure suction gas and the gas filtration in other various air purification equipment. The invention is convenient to process and manufacture, has low cost, and is easy to popularize and use.
为进一步说明本发明的上述目的、结构特点和效果，以下将结合附图对本发明进行详细的描述。In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.
(4)附图说明(4) Description of drawings
图1为本发明的自净式医用呼吸设备气体过滤器的实施例的结构图。Fig. 1 is a structural diagram of an embodiment of the self-cleaning medical breathing apparatus gas filter of the present invention.
图中主要符号的说明：Explanation of the main symbols in the figure:
1……外壳 2……进气接口1...Shell 2...Intake port
3……消毒抑菌过滤层 4……活性炭吸附层3...Disinfection and antibacterial filter layer 4...Activated carbon adsorption layer
5……微孔高效过滤层 6……支撑隔板5...Microporous high-efficiency filter layer 6...Supporting partition
7……出气接口7...Air outlet port
(5)具体实施方式(5) specific implementation
下面结合实施例的附图，对本发明的自净式医用呼吸设备气体过滤器的实施方式作详细说明。The implementation of the self-cleaning gas filter for medical breathing equipment of the present invention will be described in detail below in conjunction with the accompanying drawings of the embodiments.
本发明包括：The present invention includes:
外壳1，内装过滤材料。The shell 1 is filled with filter material.
进气接口2，设置于外壳1的一端，是待过滤气体的入口。The air inlet port 2 is arranged at one end of the housing 1 and is the inlet of the gas to be filtered.
出气接口7，设置于外壳1的另一端，是过滤后气体的出口。The gas outlet port 7 is arranged at the other end of the housing 1 and is the outlet of the filtered gas.
过滤材料，设置于所述的外壳1内，所述的过滤材料至少有三层：The filter material is arranged in the shell 1, and the filter material has at least three layers:
(1)消毒抑菌过滤层3，设置于所述的进气接口2的位置，由吸附有消毒剂的粗滤网组成，粗滤网的材料可为无纺布、海棉、玻璃纤维、滤膜等低阻力粗效滤材，所述的消毒剂可以是多种药物结合的复合强力消毒剂或单剂药物，例如：含氮、碘、醛、酚、双胍类、季铵盐、阴离子表面活性剂、非离子表面活性剂以及酸、碱等消毒剂。所述的待过滤气体中含有的水分较大，特别是呼吸机呼出的气体，湿度甚大，当待过滤气体流经所述的消毒抑菌过滤层3时，气体中的水分使吸附在粗滤网上的干燥复合强力消毒剂部分逐步溶解，发挥杀菌作用，逐步溶解的消毒剂随气流进入后面的吸附过滤层。(1) The disinfection and antibacterial filter layer 3 is arranged at the position of the air inlet port 2, and is made up of a coarse strainer adsorbed with a disinfectant, and the material of the coarse strainer can be non-woven fabric, sponge, glass fiber, Low-resistance coarse-effect filter materials such as filter membranes. The disinfectant can be a compound powerful disinfectant combined with multiple drugs or a single drug, such as: nitrogen, iodine, aldehydes, phenols, biguanides, quaternary ammonium salts, anions Surfactants, non-ionic surfactants and disinfectants such as acids and alkalis. The moisture contained in the gas to be filtered is relatively large, especially the gas exhaled by the ventilator, which has a very high humidity. When the gas to be filtered flows through the described disinfection and antibacterial filter layer 3, the moisture in the gas makes it adsorbed on the coarse filter layer 3. Part of the dry compound strong disinfectant on the net gradually dissolves to play a bactericidal effect, and the gradually dissolved disinfectant enters the adsorption filter layer behind with the airflow.
(2)活性炭吸附层4，设置于所述的消毒抑菌过滤层3后面的位置，由活性炭组成，活性炭吸附层4与消毒抑菌过滤层3用带有小孔的支撑隔板6隔开，活性炭吸附层4中的活性炭微孔产生的吸附效应将所述的消毒抑菌过滤层3过来的带有消毒剂分子的气体进行吸附，吸附了消毒剂分子的活性炭也成为具有杀菌效果的滤材，此时，经过二层过滤层过滤后的气体，其中绝大部分的尘埃、微生物已被滤除。(2) activated carbon adsorption layer 4 is arranged on the position behind the described disinfection and antibacterial filter layer 3, and is made up of activated carbon, and the activated carbon adsorption layer 4 and the disinfection and antibacterial filter layer 3 are separated by a support partition 6 with apertures The adsorption effect produced by the activated carbon micropores in the activated carbon adsorption layer 4 adsorbs the gas with disinfectant molecules from the disinfection and antibacterial filter layer 3, and the activated carbon that has absorbed the disinfectant molecules also becomes a filter with a bactericidal effect. At this time, most of the dust and microorganisms have been filtered out of the gas filtered by the second filter layer.
(3)微孔高效过滤层5，设置于所述的活性炭吸附层4后面接近所述的出气接口7的位置，由微孔滤纸组成，本实施例中微孔滤纸是HEPA高效玻璃纤维滤纸，微孔高效过滤层5与活性炭吸附层4用带有小孔的支撑隔板6隔开，微孔高效过滤层5可滤除＞99.99％的微生物。(3) Microporous high-efficiency filter layer 5 is arranged on the position close to described air outlet interface 7 behind described activated carbon adsorption layer 4, and is made up of microporous filter paper, and in the present embodiment, microporous filter paper is HEPA high-efficiency glass fiber filter paper, The microporous high-efficiency filter layer 5 and the activated carbon adsorption layer 4 are separated by a supporting partition 6 with small holes, and the microporous high-efficiency filter layer 5 can filter out more than 99.99% of microorganisms.
经上述三道过滤层过滤后的气体，基本上净化，可以直接排放。The gas filtered by the above three filter layers is basically purified and can be discharged directly.
所述的消毒抑菌过滤层3中吸附的消毒剂呈干燥固体状，均匀地粘附于所述的粗滤网的滤材表面，消毒剂本身不会对滤材起腐蚀作用。此外，呈干燥固体状的消毒剂适宜长期存放，不会自行分解，能保持较长时间的杀菌效果。The disinfectant adsorbed in the disinfection and antibacterial filter layer 3 is dry and solid, evenly adhered to the surface of the filter material of the coarse filter, and the disinfectant itself will not corrode the filter material. In addition, the disinfectant in the form of dry solid is suitable for long-term storage, it will not decompose by itself, and can maintain the bactericidal effect for a long time.
本发明制造方便。一些高效过滤材料及活性炭等吸附剂材料，本身不能进行涂复、浸渍等工艺；某些消毒药物本身亦无法耐受涂复，浸渍后的高温干燥处理。而本发明仅需在可耐热的粗滤网的滤材(例：无纺布、玻璃纤维等)表面涂复一层消毒剂，气体通过时进行消毒，形成的消毒剂分子颗粒、气溶胶等被下一层的活性炭吸附层4俘获，而俘获的消毒剂分子颗粒如上所述，也能逐步具有杀灭微生物的能力，随着过滤器使用时间的延长，消毒能力亦逐步增加，当过滤器使用至阻力升高，过滤效果下降报废时，过滤器内的消毒剂仍具有消毒作用，由于存在自净化的能力，不会造成二次污染的问题。The invention is convenient to manufacture. Some high-efficiency filter materials and adsorbent materials such as activated carbon cannot be coated and impregnated by themselves; some disinfectants themselves cannot withstand high-temperature drying after coating and impregnation. And the present invention only needs to coat one deck disinfectant on the surface of the filter material (for example: non-woven fabric, glass fiber etc.) etc. are captured by the activated carbon adsorption layer 4 of the next layer, and the captured disinfectant molecular particles can also gradually have the ability to kill microorganisms as described above. When the filter is used until the resistance rises and the filtering effect decreases and is discarded, the disinfectant in the filter still has a disinfecting effect. Due to the self-purification ability, it will not cause secondary pollution.
本技术领域中的普通技术人员应当认识到，以上的实施例仅是用来说明本发明，而并非用作为对本发明的限定，只要在本发明的实质精神范围内，对以上所述实施例的变化、变型都将落在本发明权利要求书的范围内。Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the scope of the spirit of the present invention, the above-described embodiments Changes and modifications will fall within the scope of the claims of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031514421A CN100509087C (en) | 2003-09-29 | 2003-09-29 | Self-cleaning type gas filter for medical respiratory instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031514421A CN100509087C (en) | 2003-09-29 | 2003-09-29 | Self-cleaning type gas filter for medical respiratory instrument |
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| Publication Number | Publication Date |
|---|---|
| CN1602976A true CN1602976A (en) | 2005-04-06 |
| CN100509087C CN100509087C (en) | 2009-07-08 |
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| CNB031514421A Expired - Fee Related CN100509087C (en) | 2003-09-29 | 2003-09-29 | Self-cleaning type gas filter for medical respiratory instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249677A (en) * | 2015-02-16 | 2017-10-13 | 维曼急救医疗科技两合公司 | Filter and the breathing apparatus with filter |
| CN109172840A (en) * | 2018-08-10 | 2019-01-11 | 董君洁 | Tuberculosis prevention and treatment chlorination equipment |
| CN109939305A (en) * | 2019-04-22 | 2019-06-28 | 河南中医药大学 | Anti-cross-infection aerosol inhalation device for pediatric use |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069733U (en) * | 1990-05-18 | 1991-01-23 | 段秀姣 | Tasteless oxygen-feeding filter |
| CN2666464Y (en) * | 2003-09-29 | 2004-12-29 | 上海第二医科大学附属仁济医院 | Air filter for self-cleaning medical respiratory equipment |
-
2003
- 2003-09-29 CN CNB031514421A patent/CN100509087C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107249677A (en) * | 2015-02-16 | 2017-10-13 | 维曼急救医疗科技两合公司 | Filter and the breathing apparatus with filter |
| CN107249677B (en) * | 2015-02-16 | 2020-10-09 | 维曼急救医疗科技两合公司 | Filter and breathing apparatus with filter |
| CN109172840A (en) * | 2018-08-10 | 2019-01-11 | 董君洁 | Tuberculosis prevention and treatment chlorination equipment |
| CN109939305A (en) * | 2019-04-22 | 2019-06-28 | 河南中医药大学 | Anti-cross-infection aerosol inhalation device for pediatric use |
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| Publication number | Publication date |
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| CN100509087C (en) | 2009-07-08 |
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