CN211021065U - Novel medical surgical mask for filtering operation waste gas - Google Patents
Novel medical surgical mask for filtering operation waste gas Download PDFInfo
- Publication number
- CN211021065U CN211021065U CN201921191364.7U CN201921191364U CN211021065U CN 211021065 U CN211021065 U CN 211021065U CN 201921191364 U CN201921191364 U CN 201921191364U CN 211021065 U CN211021065 U CN 211021065U
- Authority
- CN
- China
- Prior art keywords
- layer
- waste gas
- filtering
- mask
- medical surgical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- 239000002912 waste gas Substances 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000002121 nanofiber Substances 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 description 7
- 210000001124 body fluid Anatomy 0.000 description 4
- 239000010839 body fluid Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides a new-type medical surgery gauze mask of filtration operation waste gas when not changing other dominant properties of traditional medical surgery gauze mask, through using the high-efficient low resistance air filtration combined material that forms at the hyperfine nanofiber thin layer of traditional fiber substrate surface deposit, can high-efficiently filter the operating room waste gas that the molecular diameter is 0.07-35 mu m, can improve the filtration effect of current medical surgery gauze mask greatly.
Description
Technical Field
The utility model relates to a medical gauze mask, concretely relates to new-type medical surgical gauze mask of filtration operation waste gas.
Background
The mask body of a common medical surgical mask is generally divided into three layers from outside to inside, namely a surface anti-moisture layer, a high-efficiency filter layer and a skin affinity layer, the high-efficiency filter layer at the middle layer is mostly made of melt-blown cloth which takes polypropylene as a main material at present, the melt-blown cloth contains a large number of micro-pore gaps due to the complex structure and the random three-dimensional distribution of fibers, and particles surround the fibers and pass through various types of bent channels or paths, so that the probability that the particles suspended in fluid collide and are retained is greatly increased. The middle layer of the medical protective mask is made of superfine polypropylene melt-blown material, so that the particle filtering efficiency is improved, and the breathing resistance is also increased.
Currently, China still adopts standards of YY 0469 + 2004 technical requirements for medical surgical masks, which are published in 2005. Wherein the requirements of the medical surgical mask on the particle filtration efficiency are as follows: the filtering efficiency of sodium chloride aerosol with the diameter of 0.24 +/-0.06) mu m in aerodynamics is not lower than 30 percent. With the widespread use of new surgical energy devices such as ultrasonic knives, the diameter of the exhaust gas molecules generated by the operation is changed. The measurement shows that the diameter of the exhaust gas molecules in the operating room is different from 0.07 to 35 mu m. Our previous tests showed that: in an operating room with laminar flow purification, the concentration of PM2.5 in the room after three hours of surgery is 2.3 times that before the surgery, and in the process of surgical operation, the instantaneous PM2.5 at the mouth and nose of a surgeon even reaches 120ug/m2, so that the moderate pollution level is reached.
If the medical protective mask with high particle filtration efficiency is selected, the defects of high breathing resistance, high use cost and the like are caused. Therefore, research and development of an intermediate filter layer material which increases the particle filtration efficiency and has acceptable respiratory resistance are urgently needed, and a novel medical surgical mask capable of filtering surgical waste gas is researched and designed from the viewpoint of protecting the health of medical staff.
SUMMERY OF THE UTILITY MODEL
The problem that exists to prior art, the utility model provides a new-type medical surgical gauze mask of filtration operation waste gas, when not changing other dominant properties of traditional medical surgical gauze mask, through using the high-efficient low resistance air filtration combined material who forms at the hyperfine nanofiber thin layer of traditional fiber substrate surface deposition, can high-efficiently filter the operating room waste gas that the molecular diameter is 0.07-35 mu m, can improve the filtration effect of current medical surgical gauze mask greatly.
The technical scheme of the utility model is that: a novel medical surgical mask for filtering surgical waste gas comprises a surface moisture-resistant layer, a middle filtering layer and a skin affinity layer;
the middle filter layer comprises a fiber base material and a hyperfine nanofiber thin layer deposited on the surface of the fiber base material, wherein the thickness of the hyperfine nanofiber thin layer is 14-16 mu m, the pore diameter is 150-300nm, and the porosity is 80-90%.
Furthermore, a layer of ultra-fine nanofiber thin layer is deposited on each of two sides of the fiber base material. The filtering effect is improved.
Further, the thickness of the fiber base material is 1.5-2.5 μm.
Further, the surface moisture-resistant layer and the skin affinity layer are both nonwoven fabrics. The outer layer is used for isolating body fluid and the inner layer is used for absorbing moisture as the traditional medical surgical mask.
The utility model has the advantages that: when the novel medical surgical mask for filtering the surgical waste gas is used, the outer layer blocks body fluid, the middle high-efficiency filter layer can filter the surgical waste gas with the molecular diameter of 0.07-35 mu m, and finally the compatible skin material of the inner layer increases the comfort of medical staff. Compare with traditional medical surgery gauze mask, this design plans through the middle filter layer and/or the adsorption layer material that changes original medical surgery gauze mask, uses the high-efficient low resistance air filtration combined material that forms at the hyperfine nanofiber thin layer of traditional fiber substrate surface deposit, when not changing other dominant properties of medical surgery gauze mask, increases particle filtration efficiency and reaches more than 80%, greatly improves the filtering effect to operation waste gas, protects the healthy of surgery team member better.
Drawings
FIG. 1 is a cross-sectional view of the novel medical surgical mask for filtering surgical waste gases;
fig. 2 is a schematic perspective view of the novel medical surgical mask for filtering surgical waste gas.
Reference numbers in the figures: 1. a surface anti-wetting layer; 2. an intermediate filter layer; 3. a skin-friendly layer; 21 is a fibrous base material; 22 is a thin layer of ultra-fine nanofibers.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1 and 2, the novel medical surgical mask for filtering operation waste gas comprises a surface moisture-resistant layer 1, an intermediate filtering layer 2 and a skin affinity layer 3.
The surface moisture-proof layer 1 and the skin affinity layer 3 are made of the same nonwoven fabric as that of the conventional medical surgical mask, and the outer layer blocks body fluid and the inner layer absorbs moisture.
The intermediate filter layer 2 is formed by depositing a hyperfine nano fiber thin layer 22 on the surface of a traditional fiber base material 21, so that a newly developed high-efficiency low-resistance air filtering composite material with superfine, small pore size and high porosity is obtained. Preferably, a thin layer 22 of ultra-fine nanofibers is deposited on each of the front and back sides of the fibrous base material 21. Wherein, the adopted fiber base material is electrostatic spinning and has the thickness of 2 μm. The hyperfine nanofiber is 7s special melt-blown filter material produced by Shanghai Bidao New Material science and technology Limited, the hyperfine nanofiber has a thickness of 15 μm, a pore diameter of 200nm and a porosity of 85%
When the novel medical surgical mask for filtering the surgical waste gas is used, the outer layer can block body fluid, the middle high-efficiency filter layer can filter the surgical waste gas with the molecular diameter of 0.07-35 mu m, and finally the compatible skin material of the inner layer can increase the comfort of medical staff.
The novel medical surgical mask for filtering the surgical waste gas can efficiently filter the surgical waste gas with the molecular diameter of 0.07-35 mu m by using the high-efficiency low-resistance air filtering composite material formed by depositing the hyperfine nanofiber thin layer on the surface of the traditional fiber substrate without changing other advantages and properties of the traditional medical surgical mask, and can greatly improve the filtering effect of the traditional medical surgical mask.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A novel medical surgical mask for filtering surgical waste gas is characterized in that: comprises a surface anti-moisture layer (1), an intermediate filtering layer (2) and a skin affinity layer (3);
the middle filter layer (2) comprises a fiber base material (21) and a hyperfine nanofiber thin layer (22) deposited on the surface of the fiber base material (21), wherein the hyperfine nanofiber thin layer has the thickness of 14-16 mu m, the pore diameter of 150-300nm and the porosity of 80-90%;
and a layer of ultra-fine nanofiber thin layer (22) is deposited on each of two sides of the fiber base material (21).
2. The novel medical surgical mask for filtering surgical waste gases according to claim 1, wherein: the thickness of the fiber base material (21) is 1.5-2.5 μm.
3. The novel medical surgical mask for filtering surgical waste gases according to claim 1, wherein: the surface moisture-resistant layer (1) and the skin affinity layer (3) are both non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191364.7U CN211021065U (en) | 2019-07-26 | 2019-07-26 | Novel medical surgical mask for filtering operation waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191364.7U CN211021065U (en) | 2019-07-26 | 2019-07-26 | Novel medical surgical mask for filtering operation waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211021065U true CN211021065U (en) | 2020-07-17 |
Family
ID=71541893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921191364.7U Expired - Fee Related CN211021065U (en) | 2019-07-26 | 2019-07-26 | Novel medical surgical mask for filtering operation waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211021065U (en) |
-
2019
- 2019-07-26 CN CN201921191364.7U patent/CN211021065U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Electrospun nanofibers for personal protection in mines | |
| CN111235756B (en) | Novel dustproof, antibacterial and antiviral nanofiber mask | |
| US20110209711A1 (en) | Multilayer Composition for a Breathing Mask | |
| CN104305591B (en) | A kind of have the haze mask filtered with adsorption dual function based on nanostructured | |
| CN111248542A (en) | Novel C-shaped mouth mask for preventing coronavirus | |
| CN111424378A (en) | Nano fiber membrane for mask and manufacturing method thereof | |
| CN203802978U (en) | Efficient dustproof filter disc of haze-preventing mask | |
| CN107097495A (en) | A kind of disposable breathing mask fabric and preparation method thereof | |
| CN204969589U (en) | Novel dustproof mask | |
| CN211021065U (en) | Novel medical surgical mask for filtering operation waste gas | |
| CN205867786U (en) | Composite filter material | |
| CN112275044A (en) | Filter equipment and gauze mask with electrostatic spinning nanofiber cloth | |
| CN205993681U (en) | A kind of medical filtration type protective mask | |
| CN107158801A (en) | A kind of air filting material with electrostatic and preparation method thereof | |
| CN111248541A (en) | Novel corona virus protection plane mask | |
| KR20140002111A (en) | Anti-virus filter and mask using the same | |
| CN207136304U (en) | The anti-dust respirator of good purification | |
| CN103535979A (en) | Haze-preventing multifunctional gauze headscarf and manufacturing method thereof | |
| CN107440186A (en) | A kind of anti-dust respirator of good purification | |
| CN111361242A (en) | Novel coronavirus protection composite fiber microfiltration chip | |
| Patel et al. | State-of-the-Art and Projected Developments of Nanofiber Filter Material for Face Mask Against COVID-19 | |
| CN111544961A (en) | Filtering material containing fiber layer and sponge layer | |
| CN111513391A (en) | Protective mask and processing technology | |
| CN105821493A (en) | Method for preparing composite nanofiber, composite nanofiber prepared by method, filter layer body and mask with filter layer body | |
| CN213082584U (en) | Novel coronavirus protection composite fiber microfiltration chip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |