CN204653860U - Medical protection screen head-shield - Google Patents

Abstract

The utility model provides a medical protective screen hood, which comprises a hood and a transparent protective screen connected with the hood and at least corresponding to the eyes, the hood is made of flexible and light material, the hood It includes a head part that is placed on the top of the head, and the inside edge and the outside edge of the head part are respectively provided with a head fixing structure for clamping and fixing the head part around the top of the head. The corresponding inner edge of the forehead is provided with a flexible supporting part; the protective screen is made of a sheet made of hard elastic material and at least covers the eyes. The medical protective screen hood on the protective screen can fully protect the head, neck, face and eyes of the medical personnel during the operation or operation after being disinfected and sterilized before use, so as to avoid Occupational exposure caused by splashes of body fluids or other substances, stable to wear, easy to use, comfortable and light, breathable and anti-fog, stretchable and adjustable, fit the structure of the human head, and easy for the wearer to operate.

Description

Medical protective screen hood

technical field

The utility model belongs to the field of medical equipment, in particular to a medical protective screen head cover.

Background technique

In the process of surgical operation or operation on ordinary patients and/or special patients (such as patients with AIDS, hepatitis B, hepatitis C, syphilis and other blood-borne diseases), the local tissue of the patient is easy to rupture under high tension, Splashing blood and/or tissue fluid can easily contaminate nearby surgical medical staff, cause occupational exposure, and bring serious psychological and physical burdens to medical staff. Especially when orthopedic surgeons perform orthopedic operations, due to the use of sawing, chiseling, smashing, grinding, drilling and other surgical methods, the patient's blood, interstitial fluid and/or bone debris etc. are easily splashed on the face and eyes of the doctor. On the one hand, it will affect the surgical operation, on the other hand, it will pollute the skin and mucous membranes, cause occupational exposure, and easily cause medical staff to contract diseases. Thereby traditional mouth mask still can't satisfy the use requirement of medical personnel when carrying out some special operations. A surgical mask with a protective cover is provided in the prior art, although it can effectively prevent the blood, mucus and other dirt generated by the patient from splashing on the doctor's face and eyes during the operation, and does not affect the line of sight, which is beneficial to the operation. However, in actual use, if the surgical mask is worn for a long time during surgery, the ear loops of the mask connected to the transparent plastic protective cover will strangle the ears of the medical staff for a long time and cause discomfort, and due to the long-term wearing process The breathing of medical staff can fog up the clear plastic shield, which can obscure the vision and affect the surgical operation. Another kind of protective face shield provided in the prior art (such as the product of Stryke Company) also has the problem of wearing discomfort, and the heavy helmet will bring oppression to the head and neck of the operator, making the operator unable to bear it.

During the operation, the splashed blood, mucus and/or bone debris fly to the protective cover/mask and may be bounced back to the sterile area of the operation or even the patient's wound. If there are pathogens on the protective cover/mask, It will cause contamination of the operation area, and it is very easy to cause infection of the patient. Therefore, it is also required that the protective cover/mask worn by the medical staff performing the operation must be sterile. Existing surgical masks with protective covers do not meet the sterile requirements.

In addition, the combination of a protective cover and a mask can only protect the partial areas of the eyes and face of medical staff, and the head and neck are exposed, while the hood can well protect the head, face and neck.

Therefore, there is an urgent need to provide a medical headgear that is both comprehensive in protection, light in weight and anti-fog, and can also be used for sterilization.

Utility model content

The purpose of the utility model is to provide a medical headgear which prevents the ears of the medical staff from strangling the ears of the medical personnel for a long time and causes discomfort, and is convenient and comfortable to prevent splashing on the face.

The technical scheme of the utility model is as follows:

A medical protective screen head cover, characterized in that it includes a head cover and a transparent protective screen connected to the head cover at least corresponding to the eyes,

Described hood is made of flexible lightweight material, and described hood comprises the head part that is put on the top of the head, and described head part is respectively provided with clamping and fixing described head part around the inside edge and the outside edge of the top of the head. The fixed structure of the top of the head part, the head part is provided with a flexible support member on the corresponding inner edge of the top of the head and the forehead; the protective screen is made of a thin sheet made of hard elastic material and at least covers the eyes.

The hood is detachably connected to the transparent protective screen, and the outer edge of the head part of the hood corresponding to the forehead is provided with a connection structure that is detachably connected to the transparent protective screen; the upper side of the protective screen A corresponding connection structure corresponding to the connection structure is provided; the top fixing structure of the inner and outer edges and the flexible support member are detachably connected to the head portion of the hood.

The fixed structure of the top of the head is selected from one or more of the following structures:

Headbands, hair clips, and head supports that match the head;

The two ends are provided with corresponding connecting structures and fixing belts corresponding to the connecting structures.

The head portion of the hood is also provided with a semi-closed ventilating structure at the top of the back of the head and both sides of the top of the head for ventilation on the top of the head; the semi-closed ventilating structure is composed of a ventilating structure and a shielding structure, and the ventilating The structure is a structure with air holes, the shielding structure is a thin sheet made of flexible and lightweight material, the upper side of the breathable structure is fixed to the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connection to the shielding structure The connection structure at the free end, the free end of the shielding structure is provided with a corresponding connection structure corresponding to the connection structure.

The hood further includes an extension part covering at least the middle and lower parts of the head, the head part and the extension part are integrally constructed, and the extension part can also cover the shoulder area;

The hood is provided with openings at positions corresponding to the eyes and their corresponding facial areas or the entire facial area, and the edges of the openings are all provided with a connection structure that can be detachably connected to the transparent protective screen; the edge of the protective screen is provided with The connection structure corresponds to the corresponding connection structure; the bottom of the extension part is provided with a tightening structure.

The hood also includes a telescopic structure for adjusting the size of the hood; the telescopic structure is selected from one or more of the following structures:

1-3 sets of connection structures and corresponding connection structures are arranged symmetrically on the corresponding parts of the hood behind the head after wearing;

1-3 sets of connection structures and corresponding connection structures are symmetrically arranged on the corresponding parts of the hood behind the neck after wearing

The thickness of the protective screen is 0.5-2mm; the protective screen is provided with an anti-fog structure; one or more.

The flexible support member has a thickness of 1cm-8cm, and is selected from one or more of the following structures: silica gel pads, sponges, foam plastics, cloth pads, bamboo charcoal bags, and gauze strips.

The air-permeable structure is selected from one or more of the following structures: mesh structure and porous structure.

The connection structure and the corresponding connection structure are the same number of corresponding fixing pieces.

The aperture of the micropore is 100 μm-1000 μm, and the micropore is arranged at the position corresponding to the protective screen and the nasal cavity and the upper part of the nasal cavity; the hood also includes a fixed rope or a fixed belt extending from both sides of the upper part of the head to the chin.

The tightening structure is selected from bungee cords, drawstrings or straps.

The fixing part is Velcro, Velcro, buttons or snap buttons.

The protective screen covers the corresponding facial area from the eyes to the nasal cavity, the lower edge of the protective screen partially overlaps the upper edge of the mask, or the length of the protective screen exceeds the chin, and the widest width exceeds the length of the face to cover the entire face.

The application of the medical protective screen hood in the medical clinical operation process.

The utility model provides a medical protective shield head cover, the inner edge and the outer edge of the head part are respectively provided with a head fixing structure for clamping and fixing the head part around the inner edge and the outer edge of the head part, the head part The inner edge corresponding to the top of the head and the forehead is provided with a flexible supporting part, so that after the fixed structure of the top of the head on the inner edge can be placed on the head, the flexible hood with the flexible supporting part is covered on the head again, and then the outer The crest fixing structure at the edge clamps the flexible hood. In this way, the head cover can be made of disposable sterilized material, or the head cover can be sterilized separately, while the fixed structure on the top of the head and the flexible supporting part can be used repeatedly. In this way, the entire medical protective screen headgear is not only simple in structure and very light, but also the flexible headgear can be easily worn, disassembled and sterilized. Long-term surgery will not feel uncomfortable because of the hood.

The thickness of the flexible supporting part is 1cm-8cm, selected from silica gel pads, sponges, foam plastics, cloth pads, bamboo charcoal bags, and gauze strips; The hood of the corresponding forehead area is propped up, so that there is a certain space between the protective screen connected with the hood and the face, and it will not cause stuffiness and discomfort due to being directly attached to the face.

Because the protective screen for eye protection is detachably connected with the hood, like this, it is not necessary to fix the protective screen on the mask, and the ears will not be strangled by the protective screen due to the need to fix the protective screen. Adopt a suitable hood or cooperate with the mask. Convenient and comfortable face protection against splashes.

Further, when the hood is a structure covering the upper, middle and lower parts of the head, it includes a hood and a transparent protective screen detachably connected with the hood; using the medical protective screen hood for surgery The advantage is that the protective screen and the head cover are in a detachable connection, and they can be sterilized and sterilized before wearing, which is convenient to use. Further, the head cover also includes an extension part covering at least the middle and lower parts of the head. The head part and the extension part are integrally constructed. The extension part can also cover the shoulder area. The setting of the extension part can protect the The entire head, neck and shoulders of the person.

The hood is provided with openings at positions corresponding to the eyes and their corresponding facial areas or the entire facial area, so that the eyes and their corresponding facial areas or the entire facial area can be exposed after the medical staff wears the hood; The edge of the opening is provided with a detachable connecting structure connecting the transparent protective screen; the edge of the protective screen is provided with a corresponding connecting structure corresponding to the connecting structure, and the protective screen and the hood are connected through the connecting structure and the corresponding connecting structure. Combined all-round protection for the face, head, neck and shoulders of medical staff. Further, the protective screen has a thickness of 0.5-2 mm and is made of transparent hard elastic material, and the protective screen is provided with an anti-fog structure, and the thin and transparent protective screen enables medical staff to easily perform operations with a clear view And effectively protect the eyes, the anti-fog structure can prevent fogging well, so that the medical staff can ensure a clearer line of sight during the long-term operation.

In addition, the hood described in the present utility model can also be a surgical cap, and the outer side of the visor of the surgical cap and the upper side of the protective screen are respectively provided with corresponding fixing parts, and the structure and characteristics of the protective screen are as mentioned above. As mentioned above, the medical protective screen hood composed of the surgical cap and the protective screen can also be used in conjunction with a disposable sterile mask during actual use.

The utility model also provides the application of the medical protective screen hood in the medical clinical operation process. In the process of performing operations on ordinary patients and/or special patients (such as AIDS patients, infectious patients, etc.), the use of the medical protective screen hood described in the utility model can protect the head, face and body of the medical staff as a whole. Neck, to avoid being polluted by patient's blood, interstitial fluid and/or bone fragments etc., simultaneously described medical protective screen headgear is through sterilized treatment, like this when bone debris splashes to protective screen and/or head It will not cause contamination of the operation area when it is bounced back to the sterile area of the operation or even the patient's wound; and the medical protective screen head cover is easy to wear, comfortable, light, breathable and anti-fog, even if the operation time is too long, it will not Make medical staff uncomfortable.

Description of drawings

Fig. 1 is the front structural view of the hood and protective screen of No. 1 medical protective screen hood described in embodiment 1.

Fig. 2 is the front structural view of No. 1 medical protective screen hood described in embodiment 1 when it is in use.

Fig. 3 is the front structural view of the hood and protective screen of No. 2 medical protective screen hood described in embodiment 2.

Fig. 4 is the front structural view of No. 2 medical protective screen hood described in embodiment 2 when it is in use.

Fig. 5 is the front view of the protective screen with transparent air filter anti-fog structure of No. 3 medical protective screen hood described in embodiment 3.

Fig. 6 is the front view of the protective screen with the microporous anti-fog structure of No. 4 medical protective screen hood described in Embodiment 4.

Fig. 7 is the front structural view of No. 6 medical protective screen hood described in embodiment 6 when in use.

Fig. 8 is the front structural view of the hood and protective screen of No. 7 medical protective screen hood described in embodiment 7.

Fig. 9 is the front structural view of No. 7 medical protective screen hood described in embodiment 7 when in use.

Fig. 10 is the front structural view of No. 8 medical protective screen hood described in embodiment 8 when it is in use.

Fig. 11 is an internal structural diagram of the hood of the present invention.

Fig. 12 is a structural view of the top and the rear of the hood of the utility model.

Fig. 13 is the front structural view of No. 9 medical protective screen hood described in embodiment 9 when it is in use.

The reference signs in the above drawings represent: 1: hood; 1-1: head part; 1-2: opening; 1-3: tightening structure; 1-4: extension part; 2: protective screen; 3: Fixing piece; 4: Drawstring; 5: Drawstring buckle; 6: Anti-fog structure: transparent air filter; 7: Anti-fog structure: microporous; 8: Mask; 9: Fixed rope or strap; 10: Head fixed structure; 11: flexible support component; 12: semi-closed breathable structure.

Detailed ways

The utility model will be further described in detail below in conjunction with specific embodiments, but the scope of the utility model is not limited.

Embodiment 1, No. 1 medical protective screen hood

In conjunction with Fig. 1, Fig. 2, Fig. 11 and Fig. 12, the No. 1 medical protective screen hood of the present embodiment will be described in detail. The No. 1 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 at least corresponding to the eyes. The hood is made of flexible light material non-woven fabric. The hood 1 includes a head part 1-1 that is placed on the top of the head. As shown in Figures 11 and 12, the inside edge and the outside edge of the head part 1-1 are respectively provided with clamping and fixing devices around the top of the head. The parietal fixation structure 10 of the head part, specifically, the parietal fixation structure 10 is provided with a connection structure corresponding to the position and a fixing belt of the corresponding connection structure at both ends; as shown in Figure 11, the head part 1-1 A flexible support member 11 with a thickness of 1 cm is provided on the inner edge corresponding to the forehead of the head, specifically a silicone pad; as shown in Figures 1 and 2, the protective screen 2 is made of hard elastic material PVC 1. A thin sheet with a thickness of 0.5 mm covering at least the eyes, specifically, the protective screen 2 is provided with an anti-fog structure: a transparent anti-fog coating; The extension part 1-4, the head part 1-1 and the extension part 1-4 are integrally structured; the head cover 1 is provided with an opening 1-2 at a position corresponding to the eye and its corresponding facial area, the The edge of the opening 1-2 is provided with a connection structure detachably connected to the transparent protective screen 2; the edge of the protective screen 2 is provided with a corresponding connection structure corresponding to the connection structure; the bottom of the extension part 1-4 is provided with The tightening structure 1-3 is specifically an elastic cord; a telescopic structure is also provided at the rear of the extension part 1-4. 1-3 sets of connection structures and corresponding connection structures are arranged symmetrically on the left and right sides of the hood 1, and the structures are used to adjust the size of the hood 1; It is detachably connected with the head part 1-1 of the hood 1; as shown in Figure 12, the head part 1-1 of the hood 1 is also provided with half Closed air-permeable structure 12, used for overhead ventilation; said semi-closed air-permeable structure 12 is made up of an air-permeable structure and a shielding structure, and said air-permeable structure is a structure with vent holes, specifically, a mesh structure; said shielding structure It is a thin sheet made of non-woven fabric of flexible and lightweight material. The upper side of the air-permeable structure fixes the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connection structure connecting the free end of the shielding structure. The shielding structure The free end is provided with a corresponding connection structure corresponding to the connection structure; the above connection structure and the corresponding connection structure are fixed parts corresponding to the same number of positions, specifically Velcro.

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixed structure 10 on the top of the head, and make it stable by tightening the structure 1-3; the eyes of the medical staff pass through the opening 1-2 exposed, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 2 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, a transparent anti-fog coating, so as to prevent medical personnel from fogging during the operation and blurring their vision.

Embodiment 2, No. 2 medical protective screen hood

In conjunction with Fig. 3, Fig. 4, Fig. 11 and Fig. 12, the No. 2 medical protective screen hood of the present embodiment will be described in detail. The No. 2 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 at least corresponding to the eyes, and the hood is made of a flexible light material non-woven fabric. The hood 1 includes a head part 1-1 that is placed on the top of the head. As shown in Figures 11 and 12, the inside edge and the outside edge of the head part 1-1 are respectively provided with clamping and fixing devices around the top of the head. The parietal fixation structure 10 of the head part, specifically, the parietal fixation structure 10 is provided with a connection structure corresponding to the position and a fixing belt of the corresponding connection structure at both ends; as shown in Figure 11, the head part 1-1 A flexible support member 11 with a thickness of 8cm, specifically a sponge, is provided on the inner edge corresponding to the top of the head and the forehead; as shown in Figures 3 and 4, the protective screen 2 is made of hard elastic material TPU, It is composed of a thin sheet with a thickness of 2mm covering at least the eyes. Specifically, the protective screen 2 is provided with an anti-fog structure: an anti-fog film; the hood 1 also includes an extension part 1- 4. The head part 1-1 and the extension part 1-4 are integral structures; the head cover 1 is provided with openings 1-2 at positions corresponding to the eyes and the corresponding facial areas, and the openings 1-2 The edges are all provided with a detachable connection structure connecting the transparent protective screen 2; the edge of the protective screen 2 is provided with a corresponding connection structure corresponding to the connection structure; the bottom of the extension part 1-4 is provided with a tightening structure 1 -3, specifically a drawstring; a telescopic structure is also provided at the rear of the extension part 1-4, specifically, the telescopic structure refers to the head cover 1 corresponding to the back of the head and the back of the neck after wearing 1-3 groups of connecting structures and corresponding connecting structures are arranged symmetrically on the upper part, and the structures are used to adjust the size of the head cover 1; The head portion 1-1 of the hood 1 is detachably connected; as shown in Figure 12, the head portion 1-1 of the hood 1 is also provided with a semi-closed ventilating structure at the top of the back of the head and on both sides of the top of the head. 12. It is used for ventilation on the top of the head; the semi-closed breathable structure 12 is composed of a breathable structure and a shielding structure, and the breathable structure is a structure with air holes, specifically, a porous structure; the shielding structure is flexible and lightweight A thin sheet made of non-woven material, the upper side of the air-permeable structure fixes the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connection structure connecting the free end of the shielding structure, and the free end of the shielding structure is set There is a corresponding connection structure corresponding to the connection structure; the above connection structure and the corresponding connection structure are the same number of fixing parts corresponding to the positions, specifically Velcro.

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixed structure 10 on the top of the head, and make it stable by tightening the structure 1-3; the eyes of the medical staff pass through the opening 1-2 exposed, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 2 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, an anti-fog film, so as to prevent medical personnel from fogging during the operation and blurring their vision.

Embodiment 3, No. 3 medical protective screen hood

In conjunction with Fig. 4, Fig. 5, Fig. 11 and Fig. 12, the No. 3 medical protective screen hood of the present embodiment will be described in detail. The No. 3 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 at least corresponding to the eyes; as shown in Figure 4, Figure 11 and Figure 12, the present embodiment The structure of the hood 1 is exactly the same as that of the hood 1 in Example 2; the protective screen 2 is made of a hard elastic material PP, and at least covers the eyes with a thickness of 1mm. There is an anti-fog structure, and the anti-fog structure in this embodiment is a transparent air filter 6; the head cover 1 is detachably connected through the connection structure provided at the edge of the opening 1-2 and the protective screen 2 provided with a corresponding connection structure at the edge .

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixed structure 10 on the top of the head, and make it stable by tightening the structure 1-3; the eyes of the medical staff pass through the opening 1-2 exposed, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 2 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, a transparent air filter 6, so as to avoid the mist produced by the breathing of the medical personnel during the operation and blur the vision.

Embodiment 4, No. 4 medical protective screen hood

No. 4 medical protective screen hood of the present embodiment is made of the hood 1 among the embodiment 1 and the transparent protective screen 2 as shown in Figure 6; As shown in Figure 6, the thickness of described transparent protective screen 2 is 0.8mm An anti-fog structure is provided on the protective screen, and the anti-fog structure in this embodiment is a micropore 7, and the diameter of the micropore 7 is 100 μm.

The use of No. 4 medical protective screen hood described in this embodiment can also play the same function and effect as that of the medical protective screen hood described in Embodiment 1.

Embodiment 5, No. 5 medical protective screen hood

The No. 5 medical protective screen hood of the present embodiment is made of the hood 1 in the embodiment 2 and the transparent protective screen 2 as shown in Figure 6; the thickness of the transparent protective screen 2 is 1.2mm, and is provided with anti-fog Structure: micropores 7 with a diameter of 1000 μm. Besides, the structure and components of the protective screen are consistent with the protective screen described in Embodiment 1 or 2.

The use of the No. 5 medical protective screen hood described in this embodiment can also play the same function and effect as that of the medical protective screen hood described in Embodiment 2.

Embodiment 6, No. 6 medical protective screen hood

The No. 6 medical protective screen hood of the present embodiment is composed of a hood 1 and the transparent protective screen 2 described in Embodiment 2, the hood 1 is a surgical cap; the surgical cap includes a head part 1 that is placed on the top of the head -1, as shown in Figure 11 and Figure 12, the head part 1-1 is respectively provided with a head fixing structure 10 around the inner and outer edges of the head part to clamp and fix the head part, specifically , the head fixing structure 10 is a headband suitable for the head; as shown in FIG. Part 11 is specifically a bamboo charcoal bag; the outside of the brim of the front of the surgical cap and the upper side of the transparent protective screen 2 are respectively provided with corresponding fixing parts 3; specifically, the fixing parts 3 are buttons. The No. 6 medical protective screen hood described in this embodiment can be used in conjunction with the mouth mask 9; the protective screen 2 covers the corresponding facial area from the eyes to the nasal cavity, and the lower edge of the protective screen 2 is connected to the upper edge of the mouth mask 9. overlapping.

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixing structure 10 on the top of the head, and then connect the protective screen 2 through the fixing part 3 according to the corresponding position to form a structure as shown in Figure 7 Use structure; after wearing, protect the face with the existing disposable medical sterile mask. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, an anti-fog film, so as to prevent medical personnel from fogging during the operation and blurring their vision.

Embodiment 7, No. 7 medical protective screen hood

8, FIG. 9, FIG. 11 and FIG. 12 illustrate No. 7 medical protective screen headgear based on this embodiment. The No. 2 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 corresponding to the entire face. The hood is made of flexible light material non-woven fabric. The cover 1 includes a head portion 1-1 that is placed on the top of the head. As shown in FIGS. The top of the head fixing structure 10, specifically, the top of the head fixing structure 10 is a hairpin suitable for the head; as shown in Figure 11, the head part 1-1 is placed on the top of the head The corresponding inner edge is provided with a flexible support member 11 with a thickness of 5 cm, which is specifically a cloth pad; as shown in Figure 8 and Figure 9, the protective screen 2 in this embodiment is made of hard elastic material PC to cover the entire face Thickness is 0.8mm sheet, and the anti-fog structure is provided on the protective screen, the anti-fog structure in the present embodiment is the micropore 7, and the aperture of the micropore 7 is 500 μm; The described in the present embodiment The length of the protective screen 2 exceeds the chin, and the widest width exceeds the length of the face to cover the entire face; the hood 1 also includes an extension 1-4 covering the middle of the head and the lower part, the head part 1-1 and the extension The part 1-4 is an integral structure, the hood 1 is provided with an opening 1-2 at a position corresponding to the entire face, and the bottom of the extension part 1-4 is provided with a tightening structure 1-3. In this embodiment, The tightening structure 1-3 is a strap. A telescopic structure is also provided at the rear of the extension part 1-4. Specifically, the telescopic structure means that the positions on the hood 1 corresponding to the back of the head and the back of the neck are symmetrically arranged 1- 3 sets of connecting structures and corresponding connecting structures, which are used to adjust the size of the hood 1; the hood 1 and the transparent protective screen 2 are detachably connected, and the forehead part of the head corresponds to the head of the hood 1 The outer edge of part 1-1 is provided with a connection structure that can be detachably connected to the transparent protective screen; the upper side of the protective screen 2 is provided with a corresponding connection structure corresponding to the connection structure; the top fixing structure of the inner and outer edges 10 and the flexible support member 11 is detachably connected to the head part 1-1 of the hood 1; as shown in Figure 12, the head part 1-1 of the hood 1 is located at the back of the head and the top The positions on both sides are also provided with a semi-closed ventilating structure 12 for overhead ventilation; the semi-closed ventilating structure 12 is composed of a ventilating structure and a shielding structure, and the venting structure is a structure with vent holes, specifically, Porous structure; the shielding structure is a thin sheet made of non-woven fabric of flexible light material, the upper side of the air-permeable structure is fixed to the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connection to the shielding structure. The connection structure at the end, the free end of the shielding structure is provided with a corresponding connection structure corresponding to the connection structure; the above connection structure and the corresponding connection structure are fixed parts corresponding to the same number of positions, specifically snap buttons.

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixed structure 10 on the top of the head, and make it stable by tightening the structure 1-3; the eyes of the medical staff pass through the opening 1-2 exposed, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 2 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, a micropore 7, so as to avoid the mist produced by the breathing of the medical personnel during the operation and blur the vision.

Embodiment 8, No. 8 medical protective screen hood

10, FIG. 11 and FIG. 12 will be described in detail No. 8 medical protective screen hood of the present embodiment. The No. 8 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 at least corresponding to the eyes, and the hood is made of flexible light material non-woven fabric. The hood 1 includes a head part 1-1 that is placed on the top of the head. As shown in Figures 11 and 12, the inside edge and the outside edge of the head part 1-1 are respectively provided with clamping and fixing devices around the top of the head. The parietal fixation structure 10 of the head part, specifically, the parietal fixation structure 10 is a head support that is compatible with the head; as shown in Figure 11, the head part 1-1 The inner edge corresponding to the forehead position is provided with a flexible support member 11 with a thickness of 4 cm, which is specifically foam plastic; 1mm sheet, specifically, the protective screen 2 is provided with an anti-fog structure: a transparent air filter 6; Connection structure; the edge of the protective screen 2 is provided with a corresponding connection structure corresponding to the connection structure; the two sides of the hood 1 are also provided with fixing belts or fixing ropes 9; the head top fixing structure of the inner and outer edges 10 and the flexible support member 11 is detachably connected to the head part 1-1 of the hood 1; as shown in Figure 12, the head part 1-1 of the hood 1 is located at the back of the head and the top The positions on both sides are also provided with a semi-closed ventilating structure 12 for overhead ventilation; the semi-closed ventilating structure 12 is composed of a ventilating structure and a shielding structure, and the venting structure is a structure with vent holes, specifically, Porous structure; the shielding structure is a thin sheet made of non-woven fabric of flexible light material, the upper side of the air-permeable structure is fixed to the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connection to the shielding structure. The connection structure at the end, the free end of the shielding structure is provided with a corresponding connection structure corresponding to the connection structure; the above connection structure and the corresponding connection structure are fixed parts corresponding to the same number of positions, specifically Velcro.

Since the parietal fixing structure 10 and the flexible support member 11 of the inner and outer edges are detachably connected to the head portion 1-1 of the hood 1, the parietal fixed structure 10 and the flexible support member 11 can be For repeated use, they can be removed before disinfection, and only the hood 1 and the transparent protective screen 2 are sterilized; On the top of the head, put the hood 1 on the head, fix it on the outside of the hood 1 with the fixed structure 10 on the top of the head, and make it stable by tightening the structure 1-3; the eyes of the medical staff pass through the opening 1-2 exposed, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 2 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, a transparent air filter 6, so as to avoid the mist produced by the breathing of the medical personnel during the operation and blur the vision.

Embodiment 9, No. 9 medical protective screen hood

11, FIG. 12 and FIG. 13 to describe in detail the No. 9 medical protective screen headgear of this embodiment. The No. 1 medical protective screen hood includes a hood 1 and a transparent protective screen 2 connected to the hood 1 at least corresponding to the eyes. The hood is made of flexible light material non-woven fabric. The hood 1 includes a head part 1-1 that is placed on the top of the head. As shown in Figures 11 and 12, the inside edge and the outside edge of the head part 1-1 are respectively provided with clamping and fixing devices around the top of the head. The parietal fixation structure 10 of the head part, specifically, the parietal fixation structure 10 is provided with a connection structure corresponding to the position and a fixing belt of the corresponding connection structure at both ends; as shown in Figure 11, the head part 1-1 A flexible support member 11 with a thickness of 3.5 cm is provided on the inner edge corresponding to the forehead of the head, specifically a gauze strip; as shown in Figure 13, the protective screen 2 is made of hard elastic material PMMA, at least Covering the eyes is made of a thin sheet with a thickness of 1.5 mm. Specifically, the protective screen 2 is provided with an anti-fog structure: a transparent anti-fog coating; The extension part 1-4, the head part 1-1 and the extension part 1-4 are integrated; the head cover 1 is provided with an opening 1-2 at a position corresponding to the entire face area, and the edge of the opening 1-2 is Both are provided with a detachable connection structure connecting the transparent protective screen 2; the edge of the protective screen 2 is provided with a corresponding connection structure corresponding to the connection structure; the bottom of the extension part 1-4 is provided with a tightening structure 1- 3. It is specifically a strap; a telescopic structure is also provided at the rear of the extension part 1-4, specifically, the telescopic structure refers to the head cover 1 corresponding to the back of the head or the back of the neck after wearing 1-3 groups of connection structures and corresponding connection structures are arranged symmetrically on the left and right sides of the position, and the structure is used to adjust the size of the hood 1; The head portion 1-1 of 1 is fixedly connected; as shown in FIG. It is used for ventilation on the top of the head; the semi-closed breathable structure 12 is composed of a breathable structure and a shielding structure, and the breathable structure is a structure with air holes, specifically, a porous structure; the shielding structure is a flexible light material without A thin sheet made of woven fabric, the upper side of the air-permeable structure fixes the fixed end of the upper side of the shielding structure, and the lower side is provided with a semi-closed connecting structure connecting the free end of the shielding structure, and the free end of the shielding structure is provided with a The corresponding connection structure corresponding to the connection structure; the above connection structure and the corresponding connection structure are fixed parts corresponding to the same number of positions, specifically Velcro.

The head cover 1 and the transparent protective screen 2 are disinfected; after the disinfection, the medical staff first directly fix the head fixing structure 10 inside the head cover 1 and the flexible support member 11 on the top of the head, and then put the head The hood 1 is turned over to cover the inner parietal fixing structure 10 and the flexible support member 11 and put on the head, and the outer cephalic fixing structure 10 of the hood 1 is used to surround the head again for fixation, and the tightening structure 1-3 Make it stable; the face of the medical staff is exposed through the opening 1-2, and then the protective screen 2 is connected according to the corresponding position through the fixing part 3 to form the use structure as shown in FIG. 13 . After being worn, the medical protective screen headgear can comprehensively protect the head, neck, face and eyes of the medical staff. The flexible supporting part 11 is located at the corresponding position of the forehead after being worn, has a certain thickness, and can prop up the hood of the corresponding forehead area, so that there is a certain space between the protective screen connected to the hood and the face, and there will be no Hotness and discomfort from direct application to the face. In addition, the transparent protective screen 2 is provided with an anti-fog structure, that is, a transparent anti-fog coating, so as to prevent medical personnel from fogging during the operation and blurring their vision.

Claims (32)

1. a medical protection screen head-shield, is characterized in that, the transparent protective shield at least corresponding to eye comprising head-shield and be connected with described head-shield,

Described head-shield is that flexible light-weight materials is made, described head-shield comprises the head portion being placed on crown portion, described head portion is respectively arranged with the crown portion fixed structure of clamping and fixing described head portion around the inside edge in crown portion and outer ledge, the described head portion inside edge that overhead forehead position in portion's is corresponding is provided with flexible support part; Thin slice that described protecting screen is made up of hard elastics material, that at least cover eye is formed.

2. medical protection screen head-shield according to claim 1, it is characterized in that, described head-shield and described transparent protective shield are for removably connecting, and the outer ledge of the head portion of the described head-shield that head forehead position is corresponding is provided with the syndeton of the transparent protective shield that removably connects; The upside of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The crown portion fixed structure of described interior outer ledge and the head portion of described flexible support part and described head-shield are for removably connecting.

3. medical protection according to claim 1 screen head-shield, is characterized in that, described crown portion fixed structure is selected from one or more of following structure:

The head hoop suitable with head, hair clip, holder,head;

The fixed band of syndeton corresponding to position and corresponding syndeton is provided with at two ends.

4. medical protection according to claim 2 screen head-shield, is characterized in that, described crown portion fixed structure is selected from one or more of following structure:

The head hoop suitable with head, hair clip, holder,head;

The fixed band of syndeton corresponding to position and corresponding syndeton is provided with at two ends.

5. medical protection screen head-shield according to claim 1, it is characterized in that, the position that head portion is being positioned at top, back and both sides, the crown of described head-shield is also provided with semi-enclosed ventilating structure, breathes freely for the crown; Described semi-enclosed ventilating structure is made up of ventilating structure and barrier structure, described ventilating structure is the structure with air-vent, described barrier structure is the thin slice that flexible light-weight materials is made, the stiff end on the upside of described barrier structure is fixed on the upside of described ventilating structure, downside is provided with the syndeton of the described barrier structure free end of semiclosed connection, and the free end of described barrier structure is provided with the corresponding syndeton corresponding with described syndeton.

6. medical protection screen head-shield according to claim 2, it is characterized in that, the position that head portion is being positioned at top, back and both sides, the crown of described head-shield is also provided with semi-enclosed ventilating structure, breathes freely for the crown; Described semi-enclosed ventilating structure is made up of ventilating structure and barrier structure, described ventilating structure is the structure with air-vent, described barrier structure is the thin slice that flexible light-weight materials is made, the stiff end on the upside of described barrier structure is fixed on the upside of described ventilating structure, downside is provided with the syndeton of the described barrier structure free end of semiclosed connection, and the free end of described barrier structure is provided with the corresponding syndeton corresponding with described syndeton.

7. medical protection screen head-shield according to claim 3, it is characterized in that, the position that head portion is being positioned at top, back and both sides, the crown of described head-shield is also provided with semi-enclosed ventilating structure, breathes freely for the crown; Described semi-enclosed ventilating structure is made up of ventilating structure and barrier structure, described ventilating structure is the structure with air-vent, described barrier structure is the thin slice that flexible light-weight materials is made, the stiff end on the upside of described barrier structure is fixed on the upside of described ventilating structure, downside is provided with the syndeton of the described barrier structure free end of semiclosed connection, and the free end of described barrier structure is provided with the corresponding syndeton corresponding with described syndeton.

8. medical protection screen head-shield according to claim 4, it is characterized in that, the position that head portion is being positioned at top, back and both sides, the crown of described head-shield is also provided with semi-enclosed ventilating structure, breathes freely for the crown; Described semi-enclosed ventilating structure is made up of ventilating structure and barrier structure, described ventilating structure is the structure with air-vent, described barrier structure is the thin slice that flexible light-weight materials is made, the stiff end on the upside of described barrier structure is fixed on the upside of described ventilating structure, downside is provided with the syndeton of the described barrier structure free end of semiclosed connection, and the free end of described barrier structure is provided with the corresponding syndeton corresponding with described syndeton.

9. medical protection screen head-shield according to claim 1, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

10. medical protection screen head-shield according to claim 2, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

11. medical protection screen head-shields according to claim 3, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

12. medical protection screen head-shields according to claim 4, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

13. medical protection screen head-shields according to claim 5, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

14. medical protection screen head-shields according to claim 6, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

15. medical protection screen head-shields according to claim 7, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

16. medical protection screen head-shields according to claim 8, it is characterized in that, described head-shield also comprises the extension at least covering centriciput and bottom, and described head portion and extension are structure as a whole, and described extension can also be covered to shoulder regions;

Described head-shield is provided with opening at eye and corresponding facial zone thereof or position corresponding to whole facial zone, and described edge of opening is provided with the syndeton of the transparent protective shield that removably connects; The edge of described protecting screen is provided with the corresponding syndeton corresponding with described syndeton; The bottom of described extension is provided with tightening structure.

17. medical protection screen head-shields according to claim 9, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

18. medical protection screen head-shields according to claim 10, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

19. medical protection screen head-shields according to claim 11, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

20. medical protection screen head-shields according to claim 12, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

21. medical protection screen head-shields according to claim 13, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

22. medical protection screen head-shields according to claim 14, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

23. medical protection screen head-shields according to claim 15, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

24. medical protection screen head-shields according to claim 16, it is characterized in that, described head-shield also comprises stretching structure, for regulating the size of head-shield; Described stretching structure is selected from one or more in following structure:

The position of wearing on described head-shield corresponding to occiput rear is symmetrical set 1-3 group syndeton and corresponding syndeton;

The position of wearing on described head-shield corresponding to rear neck rear is symmetrical set 1-3 group syndeton and corresponding syndeton.

25. according to claim 1-24 arbitrary described medical protection screen head-shield, and it is characterized in that, the thickness of described protecting screen is 0.5 ~ 2mm; Described protecting screen is provided with antifog structure; Described antifog structure be selected from multiple micropore, transparent air filter screen, clear anti-fog coating, antifog film one or more.

26. medical protection screen head-shields according to claim 1, it is characterized in that, the thickness of described flexible support part is 1cm-8cm, is selected from one or more in following structure: silicagel pad, sponge, foamed plastics, cloth pad, bamboo charcoal bag, meche.

27. according to claim 5-8 arbitrary described medical protection screen head-shield, and it is characterized in that, described ventilating structure is selected from one or more in following structure: network structure, vesicular texture.

28., according to claim 2-24 arbitrary described medical protection screen head-shield, is characterized in that, described syndeton and corresponding syndeton are fixture corresponding to equal number position.

29. medical protection screen head-shields according to claim 25, it is characterized in that, the aperture of described micropore is 100 μm-1000 μm, and described micropore is arranged at the protecting screen position corresponding with nasal cavity and nasal cavity top; Described head-shield also comprises the static line or the fixed band that extend to chin from both sides, head top.

30. according to claim 9-16 arbitrary described medical protection screen head-shield, and it is characterized in that, described tightening structure is selected from bungee, draw-string or bandage.

31. medical protection screen head-shields according to claim 28, it is characterized in that, described fixture is velcro, VELCRO, button or snap-fastener.

32. medical protection screen head-shields according to claim 2, it is characterized in that, described protecting screen covers eye to facial zone corresponding to nasal cavity, described protecting screen lower edge is overlapping with mouth mask upper edge portion, or the length of described protecting screen exceedes chin, the most wide degree exceedes face's length, to cover whole face.