TWM596089U - Reformation of a face mask to replace surgical mask. - Google Patents

Abstract

Due to the rapid increase in the number of new coronavirus pneumonia infections, the droplets and aerosols have caused panic, and the media has helped to cause panic, so they began to buy medical masks, which caused insufficient production capacity at this stage, even The number of masks worn by the first-line medical staff is also very tight. If the time of anti-epidemic is prolonged, fearing that the raw materials will also be insufficient, it is conceived to use repeated cleaning and can isolate most of the droplets and aerosols. The product, in addition, can not use too much raw materials related to the mask, so the existing Facebook mask is improved and a down hose is provided to increase ventilation and isolate infection.

Description

Mask replacement for masks

Droplet contact is one of the transmission routes of influenza, and many bacteria or viruses are caused by the droplets generated when coughing or sneezing, so that humans can quickly communicate with each other. The size is between 20 and 200 microns, and most viruses are between 20 and 200 nanometers. However, whether to avoid influenza, SARS or today's Wuhan pneumonia (new coronavirus pneumonia), current experts The conceivable anti-epidemic method is to wear N95 or medical masks, plus the hand washing frequently to block harmful substances from the outside world.

However, in epidemiology, droplets, contact, and aerosols are the main routes of infection. Among them, aerosols are formed by mixing droplets in the air, which can cause infection after inhalation. This route is not necessary to wear in open spaces. The basis of the masks, because the media broadcast the news of the epidemic every day, let the people live in panic every day, so the panic buying and hoarding of the masks caused the shortage of masks, so some experts suggested that you don’t need to wear them when going out and taking the public transportation system. Masks, however, if the aerosol is transmitted, the epidemic will break, and you must not be afraid of it. And because masks are disposable products, they are in short supply and are seriously out of stock, even if they are given by the frontline medical staff The number of masks is also very tight. In addition, mask waste is also a hidden concern. Therefore, this patent contemplates the improvement of traditional masks to replace the shortage of masks.

At present, the common types of masks on the market include gauze masks, medical masks, activated carbon masks, N95 masks, and anti-virus masks. Among them, general gauze masks can only filter larger particles. The process is to use filter cloth for the inner layer. The outer layer is made of pure cotton gauze, and soft iron wire is designed at the bridge of the nose. When using it, the soft iron wire is pressed down to make it fit. It is only suitable for cleaning work, or for protection against the infiltration of large particles of dust and contaminants.

Medical masks or surgical masks should be able to block more than 95% of sub-micron particles in a high-standard process. The process is to use a composite non-woven fabric in the innermost layer. Because it needs to contact the skin, it needs to be reduced. The material that rubs against the face, the middle layer is mainly the filter layer, so the solvent-sprayed non-woven fabric is selected, which can filter the fine dust in the air, and the outermost layer is mainly the barrier effect, so the non-woven PP material with water-repellent effect is selected.

Activated carbon masks can absorb organic gases but have no sterilization function. The process is to use a composite non-woven fabric in the fourth layer. The third layer is to add activated carbon fibers to the filter layer, mainly to filter out clean air, and the second layer to add non-woven fabrics. The second barrier, the outermost layer is the isolation layer. The main purpose is to block larger dusts, droplets, etc., design the soft iron wire at the bridge of the nose, and press down the soft iron wire to make it fit. It is suitable for painting operations or spraying pesticides. .

The N95 mask can block more than 95% of the sub-micron particles. The process is to use a composite non-woven fabric on the innermost layer with a cushion inside, a fixed piece is attached to the nose patch, and the outermost layer is to prefabricate a mask-shaped mold. Accommodate the mouth and nose, and then make the material with a water-repellent effect to achieve the barrier effect. Generally speaking, the interior has five or more layers of protection, so the breathing resistance is high and it is not suitable for long-term wearing.

The canister used in anti-virus masks can filter toxic gaseous substances in the air Mass, or particles in the air, including chlorine, bacteria, viruses, and toxin weapons. The process is to prefabricate a mask mold, which can be connected to the canister and a vent with a protective design near the mouth and nose. A filter cotton is placed in the canister according to demand, and the effectiveness of the canister can be sustained for 72 hours in a biochemical environment. This mask has a high respiratory impedance and is not suitable for long-term wearing.

However, among the above-mentioned products, only the gas mask can be used again after changing the filter cotton. However, the problem of the gas mask is that it has a high breathing resistance and is not suitable for long-term wear. Other gauze masks, medical masks, activated carbon masks, N95 Masks, etc. are all disposable products, so apart from damage or dirt, they must be replaced immediately. Generally speaking, they need to be replaced every day when the supply is sufficient. However, if the entire population in Taiwan or the world needs to replace the masks every day, even if the production capacity However, there will be a shortage of raw materials.

In view of this, we must think about how to overcome the problem of supply, and supply and demand will be affected by the degree of infection of the disease. If the basic regeneration number of a patient in the susceptible population is R0=3.8-4.0, it represents the average of a patient Can infect about 3.8 to 4 people, unless the basic regeneration number can be controlled to less than one, otherwise the incubation period from the current infection to the onset of the original person is about 14 days, plus 10 The total of four days is 28 days, and then the basic time to find out the people who have contact history has been more than one month.

According to the historical experience of SARS on the other side, the first case appeared from December 15, 2002, until the infection of medical staff on January 2, 2003 until the last 18 patients were discharged from hospital on June 20, 2003, a total of about 6 During the period from about a month until the panic began to ferment until the epidemic was under control, the psychological period of panic buying money was roughly conservatively estimated to be two months. If you deduct the stocking psychology and the number of people without masks, only Taiwan is used here. As an example, 23 million people in Taiwan If each person needs one tablet per day, it is estimated that it needs to be about 1.38 billion pieces in the two-month period. However, with the current production capacity in Taiwan, it is impossible to produce sufficient masks in a short time, even if capable. It is also necessary to assess whether the raw materials are sufficient.

Therefore, it is necessary to think about the products currently on the market, which can be produced in large quantities and have little relevance to the mask raw materials. In addition, this product can be used for emergency after a slight improvement of processing, so the idea of this patent is to borrow It is improved by the existing facial mask, but whether it is a full-face or half-face type, which plastic material is used, whether the material is transparent or not, it can be improved in the mouth and nose, please refer to Figure 1 As shown in the figure, as most existing facial masks have preset eye openings, and most of the face area is protected, it can isolate most of the droplets and reduce the direct route of infection. Due to the material, the facial mask It can be cleaned and reused at any time, but the only shortcoming is the high fit. Like N95 masks and gas masks, it has the problem of high breathing resistance and is not suitable for long-term wear.

Therefore, the improved method is to open a hole along the mouth and nose of the Facebook mask. The hole can be round, oval, rectangular, or any shape, and there is a connecting groove at the hole to connect a bendable lightweight The hose is matched with each other, and the end of the hose must be down and a certain length, so as to effectively isolate the path of droplets and aerosol transmission. In addition, a silicone cushion can be added to the edge line of the mask and the face. , In this way, it can increase the comfort and tightness of wearing. When wearing, it needs to be tied by the elastic band at the rear and adjust the required comfort.

10: Facebook mask

10A: Facebook mask front

10B: Facebook mask side

11: Eye holes

12: Elastic band holes

13: Elastic band

14: Comfortable cushion

15: Mouth and nose opening

16: Mouth and mouth opening connection slot

17: Connect the hose

18: filter cotton

Figure 1 is a schematic diagram of the conventional Facebook mask.

Figure 2 is a schematic diagram of the improvement of the mask structure of the creation.

Please refer to the second figure, the first step to improve the mask replacement mask is to design an opening in the mouth and nose of the mask 10, and the shape of this opening can be round, oval, rectangular, or any shape It is called mouth-nose opening 15 here, and the size and shape of this opening must match with the external connecting hose 17.

The second step is to set up a connecting groove at the mouth and nose opening 15, which is called mouth and nose opening connecting groove 16 here, this connecting groove can be matched and assembled with the connecting hose 17, the assembly method can be tenon, screw Cap set, rubber band, elastic rope, buckle, devil felt, high frequency or direct gluing, etc.

The third step is to design a hole on the side of the Facebook mask. Its purpose is to put an elastic band so that it can adjust the comfort of wearing the mask. This is called an elastic band hole 12, and the shape of the hole can be round, It is rectangular or any shape, and the size and shape of the holes must match the elastic band 13.

The fourth step is to add a comfortable cushion on the edge of the contact between the mask and the face, which is called a comfortable cushion 14 here. Its purpose is to improve the comfort and protection of the wearer. The material of the cushion is It can be silicone, plastic, rubber or foamed materials.

The last step is to put the mask 10 on the face and put it accurately on the face, align the mouth and nose opening 15 with the mouth and nose, then adjust the elastic band 13 on the back of the head to fix it without sliding, and then place the filter cotton 18 At the end of the connecting hose 17, the wearing is completed.

10: Facebook mask

10A: Facebook mask front

10B: Facebook mask side

11: Eye holes

12: Elastic band holes

13: Elastic band

14: Comfortable cushion

15: Mouth and nose opening

16: Mouth and mouth opening connection slot

17: Connect the hose

18: filter cotton

Claims (5)

An improved mask that replaces a face mask. The structure of the mask is based on the mask, and the edge of the mask can be designed with a soft cushion. The mask can make an opening at the mouth and nose, and the opening can be corresponding to different needs. The shape and size, and a connection groove is provided at the opening, this connection groove can be matched and assembled with the connection hose, so the improved parts include: At least one full-face mask mask or half-face mask is required. This mask mask can create an opening in the mouth and nose, and the opening can accommodate the connection slot; at least one connection hose is required outside the connection slot. Its functionality includes a combination of different shapes and sizes; at least one or more assembly methods are required to make the connection groove and the connection hose match each other; at least one or more elastic bands are required, which can fix the mask to the user Face; at least one or more cushion materials that can be glued to the edge of the Facebook mask; at least one or more filter materials that can be placed at the end of the connecting hose; The improvement of the mask as described in item 1 of the scope of the patent application, in which the Facebook mask requires at least one or more mouth and nose openings, the openings of which contain a combination of different shapes and sizes, here are stated in order: (1) if the opening is Round, the diameter can range from 1 cm to 10 cm; (2) If the opening is oval, the diameter of the long and short sides can be between 1 cm and 10 cm; (3) If the opening is rectangular, the range of length and width can be between 1 cm and 10 cm, respectively; (4) If the opening is of any shape, the range of the opening area can be at least 1 square centimeter and the maximum can be 100 square centimeters. The improvement of the mask as described in item 1 of the patent application scope, in which the assembly method of the connection groove and the connection hose can tightly fix the two together, here the following methods can be used for assembly: Tenon set, nut set, buckle set, devil felt, rubber band, elastic rope, high frequency, directly glued, or mixed and used. For the improvement of the mask mentioned in item 1 of the patent application scope, PE, PVC, PU, PP, PA, LDPE, TPU, POM, ABS, PFA, EVA, disposable long strip type can be used for the material of the connecting hose Plastic bags, disposable elongated paper products or mixed use. The improvement of the mask as described in item 1 of the patent application scope, in which the size of the connecting hose must be matched with the connecting groove, and the connecting groove is based on the size and shape of the mouth and nose opening, and the length of the connecting hose is between Between 5 cm and 60 cm.

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