JP2022032900A - Positive pressure face shield - Google Patents

Abstract

To provide a tool allowing many medical workers to breathe safely and comfortably for a long time.SOLUTION: A face-covering stereoscopic shape face shield body (1) is formed from a transparent synthetic resin, covers a facial front surface including the eyes, nose, mouth, and surrounding parts, mostly maintains visibility, and is fixed to a head (4) with a support frame (3) attached to an upper side (2). An opening part is provided slightly below the shield body, a filter (6) is mounted, and an air supply device (8) for taking an outside air using an air supply fan is vertically installed. One or more of the devices are vertically installed as needed, and are driven by a battery. Furthermore, a soft packing (10) is laid on the face shield body circumferential side to produce a positive pressure face shield.SELECTED DRAWING: Figure 1

Description

The present invention mainly relates to an infection control device used by medical professionals.

In recent years, the medical system in Japan and around the world is thought to be well-developed, but unidentified illnesses can threaten the lives of many people every few years or decades.
In particular, the influenza virus spreads around the world every year, killing tens of thousands of people in each country.
Every few years, other viruses also occur, and the eye, nasal cavity, and oral mucosa are always at risk of infection due to the exposure caused by the scattering of infectious wet secretions derived from the respiratory organs due to the patient's cough. Will be done.
In addition, since the size of tubercle bacilli and viruses is about 0.1 μm in diameter, invasion cannot be easily blocked by wearing a normal mask.
Careful safety measures are required when preventive medicines are not in place.

There are many viruses other than the seasonal influenza virus, which is a hot topic every year.
In particular, coronavirus is a group of viruses that cause respiratory diseases of various severity, from colds to fatal pneumonia, and severe acute respiratory syndrome (SARS coronavirus) has become a worldwide epidemic. The Middle East Respiratory Syndrome (MERS coronavirus) was also a pandemic.
In recent years, a new type of SARS coronavirus, SARS coronavirus 2, has become a pandemic all over the world. It spreads from person to person, mainly through the air droplets scattered by the infected person's cough or sneeze. In addition, it can be transmitted by touching one's mouth, eyes, or face with a hand that has touched an object with the virus.
The risk of aggravation and death in infected individuals is higher in the elderly, those with visceral illnesses, and those with illnesses such as diabetes and obesity. It has also been shown that infection can occur through fine particle aerosols that float in the air for several hours.
In practice, many healthcare professionals dealing with patients with respiratory illness generally wear disposable non-woven protective clothing, masks and eyeglasses throughout their body.
In the medical field, protective clothing, gloves, masks, eyeglasses, etc. are generally worn for treatment, but high-performance masks are highly airtight and stuffy, so it is very difficult to wear them for a long time.
If a high level of treatment is required, a helmet can be worn and external air can be sent for breathing to avoid the risk of aerosol and droplet nuclear infections, but hospitals that own and enforce it are very much. Few. The incubation period of the virus is about 1 to 14 days, and there have been many reports of asymptomatic infections to other people within a few days of infection, and medical personnel facing patients wear protective clothing and masks. However, he is constantly at risk of infection without any subjective symptoms.

Conventionally, influenza virus has a risk of droplet infection, but as a preventive method, it can be prevented by wearing a mask and washing hands on a daily basis and receiving vaccination, and even if it is infected, there is a therapeutic drug.
Although SARS coronavirus 2 is outbreak, it has stronger infectivity and high mortality rate, but preventive vaccines are under development and there is no established therapeutic drug.
A transparent face shield is also used, but it is difficult to avoid air droplets and fine particle aerosols scattered by the infected person's coughing, sneezing, and vocalization, and there is a high risk of infection by adhering to the face and eyeglasses.
Therefore, the present invention is intended to provide a device that allows many medical professionals and the like to breathe safely and comfortably for a long time.

The three-dimensional face shield body (1) that covers the face is made of transparent synthetic resin and covers the front of the face including the eyes, nose, mouth, and surroundings, and the visibility is almost maintained and attached to the upper side (2). It is fixed to the head (4) with the support frame (3).
An opening (5) was provided slightly below the shield body, a filter (6) was attached, and an air supply device (8) for taking in outside air with an air supply fan (7) was erected. One or several of the devices are erected as needed and are driven by the battery (9).
Further, a soft packing (10) was laid on the peripheral side of the face shield body to form a positive pressure face shield.

A battery-powered semiconductor cooling device (11) is attached to a part of the lower side of the face shield body, and the tip (12) of the device has a variable position and a smooth contact surface, and the wearer's neck (13). ) Was attached so as to come into contact with it.

Further, a camera fixture (14) and a lighting fixture were attached to the upper part of the face shield main body.

When the positive pressure face shield main body (1) of the present invention is fixed to the head (4) with the support frame (3) attached to the upper side (2), the soft packing (10) on the peripheral side of the face shield main body becomes the face (15). In close contact with.
When the switch (16) of the air supply device (8) installed in the face shield body is energized, the air supply fan (7) is activated, and the inside of the face shield body and the face (15) surface are activated via the filter (6). The inside, which is supplied with air in between and is in close contact with the soft packing (10), has a positive pressure.
Positive pressure The inside of the face shield body is positive pressure, but when the face moves, a slight gap is created between it and the soft packing, and air flows out, but the air supply device constantly supplies air, so the inside of the face shield body Can always maintain positive pressure, and excess air is discharged from the gap, making it difficult for outside air to enter.
The filter (6) can be detached and replaced at the air supply device, and bacteria and viruses can be removed by attaching a high-performance filter made of a material, so the eyes, nose, and mouth can be kept safe, and there is no need to wear a mask. If you replace it with a new filter every time you use it, you can always ensure safety.
Even if you wear it for a long time, you can breathe easily and you can see the facial expressions, so you can make the patient smile.

Further, in order to use the positive pressure face shield of the present invention under high temperature conditions, if a semiconductor cooling device (11) driven by a battery is attached to a part of the lower side of the main body, the semiconductor cooling device can be driven. The contact surface (12) at the tip is brought into contact with the wearer's neck (13), and the cooled contact surface can cool the neck, so that the carotid artery is cooled to cool the blood in the brain and the whole body and lower the body temperature. Be done.

Further, a camera device (14), lighting, and a terminal device capable of communicating with a mobile phone can be used at night even when the face shield is worn on the upper part of the face shield body.

The perspective view which shows one Embodiment of this invention. Partially cut perspective view showing an embodiment of the present invention. The perspective view which shows the other embodiment of this invention. The perspective view which shows the other embodiment of this invention.

Form for carrying out the invention

When the positive pressure face shield main body of the present invention is fixed to the head (4) with the support frame (3) attached to the upper side (2), the soft packing (10) on the peripheral side of the face shield main body comes into close contact with the face (15). .. At this time, the degree of adhesion to the face is low and there are some places where some gaps are generated.
When the switch (16) of the air supply device (8) installed in the face shield body is energized, the air supply fan (7) is activated, and the inside of the face shield body and the face (15) surface are activated via the filter (6). The inside, which is supplied with air in between and is in close contact with the soft packing (10), has a positive pressure.
Positive pressure The inside of the face shield body is positive pressure, but when the face moves, a slight gap is created between it and the soft packing, and air flows out, but air is always supplied from the air supply device, so the inside of the face shield body Can always maintain positive pressure, and excess air is discharged from the gap, making it difficult for outside air to enter.
The filter (6) has an integrated frame, and the air supply device can be detachably replaced. Bacteria and viruses can be removed by wearing a high-performance filter made of a material, so you can ensure safety in your eyes, nose, and mouth. can.

Further, in order to use the positive pressure face shield of the present invention under high temperature conditions, if a semiconductor cooling device (11) driven by a battery is attached to a part of the lower side of the main body, the semiconductor cooling device can be driven. The contact surface (12) of the tip is brought into contact with the neck (13) of the wearer, and the cooled tip can cool the neck, so that the carotid artery can be cooled and the brain and the whole body can be efficiently cooled. For example, if a Pelche element is used as the semiconductor cooling device, a compact and lightweight cooling device can be installed, and if the arrangement and wiring are rearranged, the semiconductor cooling device can also be used as a heating device.
Further, a camera device (14), lighting, and a terminal device capable of communicating with a mobile phone can be used at night even when the face shield is worn on the upper part of the face shield body.

The three-dimensional face shield body (1) that covers the face is made of transparent and durable synthetic resin such as polycarbonate, which is slightly larger than the size of the face, and covers the front of the face including the eyes, nose, mouth, and surroundings, and the visibility is almost the same. It is held and fixed to the head (4) with the support frame (3) attached to the upper side (2). When the inside of the face shield body is positive pressure, the support frame does not stick to the shape that covers the upper surface of the head or the shape of only the frame as long as it has a shape that can easily maintain the positive pressure.
An opening (5) was provided slightly below the shield body, and a filter (6) was attached. The filter is a molded product with an integrated frame, and if you hold the frame part by hand, you can replace it with the air supply device (8) without touching the filter surface. Bacteria and viruses can be removed by installing a high-performance filter made of a material. When the switch (16) of the air supply device is energized, the air supply fan (7) operates and air is supplied between the inside of the face shield body and the face (15) surface via the filter, but the air supply device is required. Depending on the settings such as the air capacity and the size of the air supply fan, one or several units are installed and driven by the battery (9).
Further, a soft packing (10) that is light and soft so as not to hurt even if it comes into contact with the face is laid on the peripheral side of the face shield body to form a positive pressure face shield.

A battery-powered semiconductor cooling device (11) is attached to a part of the lower side of the face shield body, and the tip of the device has a variable position and smooth contact surface (12), and the wearer's neck (13). ) Was attached so as to come into contact with it.
However, when a semiconductor cooling device is used, the amount of electric power used is large, so it is efficient to use a portable battery box via a cable, and it is easy to use a rechargeable form that can be used many times.
Further, a camera device (14), lighting, and a terminal device capable of communicating with a mobile phone can be used at night even when the face shield is worn on the upper part of the face shield body. It is also useful for re-examination because it can record the patient's situation with the telephone response of urgent requirements and the built-in camera. If the video screen can be displayed on the inner surface of the face shield body, the recorded video can be played back and viewed even during a call, which is useful during medical treatment and surgery.

1 Face shield body 2 Upper side 3 Support frame 4 Head 5 Opening 6 Filter 7 Air supply fan 8 Air supply device 9 Battery 10 Soft packing 11 Semiconductor cooling device 12 Contact surface 13 Neck 14 Camera device 15 Face 16 Switch

Claims (3)

The three-dimensional face shield body that covers the face is made of transparent synthetic resin, covers the front of the face including the eyes, nose, mouth, and surroundings, retains almost all visibility, and has a head with a support frame attached to the upper side. To fix.
An opening was provided at the bottom of the shield body, a filter was attached, and an air supply device that took in outside air with an air supply fan was erected. The device may be installed in one or several units as needed and driven by a battery.
In addition, a positive pressure face shield featuring a soft packing laid on the peripheral side of the face shield body. A semiconductor cooling device driven by a battery is attached to a part of the lower side of the face shield body, and the tip of the device has a variable position and a smooth contact surface, and is attached so as to contact the wearer's neck. The positive pressure face shield according to claim 1. The positive pressure face shield according to claim 1 and 2, wherein a camera device is attached to the upper part of the face shield main body.

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