JP2022053226A - Helmet with infection control mechanism - Google Patents

Abstract

To provide a face shield that allows a user to reliably prevent a secondary infection while maintaining good visibility without interfering with a use of a medical microscope, and that is in other words, a helmet with an infection control mechanism.SOLUTION: The present invention provides a helmet, including: a cap body 2 that covers and protects a head; an air through hole 10 provided in a front-rear direction on an upper part of the cap body 2; an air discharge port 13 provided at a front end of the air through hole 10; and a blower fan 11 capable of supplying air to an inside of the air through hole 10 or an inside of a duct mounted in front of the air through hole 10, in which the air discharge port 13 is arranged on a front part of the cap body 2 so as to face downward, so that the air discharged from the air discharge port 13 forms an air curtain E in front of a face of a user U who wears the cap body 2, and the formed air curtain E can block droplets V containing bacteria or viruses.SELECTED DRAWING: Figure 1

Description

The present invention is an article worn and used by medical professionals and the like, and has an infection prevention mechanism capable of preventing droplets containing bacteria and viruses from entering the user's oral cavity, nasal cavity, and respiratory tract. Regarding the helmet.

Conventionally, when a medical worker diagnoses or treats a patient infected with a bacterium or a virus, there is a concern about infection from the patient to the medical worker (particularly infection through droplets). In particular, infectious diseases caused by the new coronavirus, which is prevalent worldwide in 2020, are in the absence of effective therapeutic agents and vaccines, and it is of utmost importance to prevent secondary infections to medical professionals. It is one of the matters to be done.

As a means to prevent such a secondary infection, a device (article) called a "face shield" that covers all or a part of the face of a medical worker or a caregiver is used.
For example, in the device disclosed in Patent Document 1, a translucent portion is formed in the face shield main body, and a plurality of face shield connecting parts are provided. By connecting the face shield body to the mask with the face shield connecting parts, the user can cover and protect the eye part with the face shield body at the same time as wearing the mask, which improves safety.

The device disclosed in Non-Patent Document 1 covers the entire face with a transparent plastic sheet, and is capable of blocking droplets emitted from a patient as much as possible.

Utility Model Registration No. 3227242 Gazette Face shield simple type (https://item.rakuten.co.jp/marbeine/qh20041702-50pcs/)

By the way, the face shield of Patent Document 1 and Non-Patent Document 1 covers all or a part of the face of the user, and the inner surface of the shield becomes cloudy due to the breath or sweat of the user, and the field of vision is obstructed. There was a risk. In addition, there is a high possibility that droplets containing bacteria and viruses are attached to the front surface of the shield, and when the face shield is used repeatedly, it is necessary to surely clean and disinfect the device. ..

In addition, in recent surgery, many operations are performed using a medical microscope, and when a doctor wearing a conventional device looks into the medical microscope, there is an inconvenience that the shield (plastic plate) becomes an obstacle.
Therefore, in view of the above problems, the present invention has a face that allows the user to reliably prevent secondary infections while maintaining a good view, and does not hinder the use of a medical microscope. It is intended to provide a shield, in other words a helmet with an infection control mechanism.

In order to achieve the above object, the following technical measures have been taken in the present invention.
The helmet having the infection prevention mechanism according to the present invention is provided at a cap body that covers and protects the head, an air through hole provided in the upper part of the cap body in the front-rear direction, and a front end portion of the air through hole. An air outlet and a blower fan capable of supplying air are provided on the inside of the air through hole or on the extension of the duct extending in front of the air outlet, and the air outlet is lowered to the front part of the cap body. The air discharged from the air discharge port forms an air curtain in front of the face of the user wearing the cap body, and the formed air curtain is a bacterium or a virus. It is characterized by being able to block droplets containing.

Preferably, the air supplied by the blower fan is configured to be supplied to the inside of the air through hole after passing through a filter arranged on the outlet side of the blower fan.
It is preferable that the air discharge port is provided with a louver that changes the direction of the discharged air, and the direction and thickness of the discharged air can be adjusted by the louver.

Preferably, a guide louver for guiding the air in the air through hole to the head side of the user may be provided in the middle portion in the longitudinal direction of the air through hole.

According to the present invention, a face shield, in other words, a face shield that allows the user to reliably prevent secondary infections while maintaining a good field of view and does not interfere with the use of a medical microscope, in other words. It is possible to realize an air screen helmet that is effective in preventing infection.

It is a side view which showed the internal structure of the helmet which has the infection control mechanism which concerns on this invention. It is a front perspective view which shows the appearance of the helmet which has the infection control mechanism which concerns on this invention. It is a side view which shows the appearance of the helmet which has the infection control mechanism which concerns on this invention. It is a perspective view which shows the appearance of the helmet which has the infection control mechanism which concerns on this invention (without ventilation). It is a rear perspective view which shows the appearance of the helmet which has the infection control mechanism which concerns on this invention. It is the figure which showed the air outlet enlarged. It is a figure which shows typically the device which can increase the function of the helmet which has the infection control mechanism which concerns on this invention.

Hereinafter, an embodiment of the helmet 1 having the infection control mechanism of the present invention according to the present invention (hereinafter, may be simply referred to as a helmet 1) will be described with reference to the drawings.
It should be noted that the embodiments described below are examples that embody the present invention, and the specific examples do not limit the configuration of the present invention. The drawings in this embodiment are drawn by omitting some of the components for easy viewing.

Further, in the front-rear direction of the helmet 1, the left side of the paper surface in the figure is the front side, and the left side of the paper surface is the rear side. In the left-right direction of the helmet 1, the back side of the paper surface in FIG. 1 is the right side, and the front side of the paper surface is the left side. This coincides with the direction seen from the user U wearing the helmet 1.
As shown in FIG. 1, the helmet 1 of the present invention has a size that allows the head to be worn without slippage. Specifically, the helmet 1 of the present invention is attached to the cap body 2 covering the head and the inside of the cap body 2, and is a cushioning member for improving the wearing feeling between the helmet 1 and the head of the user U. It has 3 and an adjuster band 4 that is wound around the head and then expanded and contracted in length to stably fix the cap body 2 to which the cushioning member 3 is attached to the head.

As shown in FIG. 1, the cap body 2 is a bowl-shaped housing slightly larger than the size of the head, and is a member that covers at least the crown. That is, the cap body 2 is composed of a hard housing called a hard shell. For example, the cap body 2 may be made of plastic such as ABS resin, but is not limited to this constituent material.
As shown in FIG. 3, a hole 5 (ventilation) is provided at the top of the cap body 2. The hole 5 releases heat from the head to the outside to improve ventilation and prevent internal stuffiness. As shown in FIG. 4, it may be configured without the hole 5.

Since the helmet 1 of the present invention is used for medical purposes, it is very preferable that the hard shell portion of the cap body 2 is removable and replaceable from the viewpoint of preventing bacterial infection. Further, it is more preferable to make this hard shell disposable.
The cushioning member 3 provided inside the cap body 2, in other words, between the cap body 2 and the user U, is made of a cloth body, styrofoam, or the like, and is arranged at an appropriate position in the cap body 2. It has become a thing.

Further, the adjuster band 4 is connected to the inside of the cap body 2. The adjuster band 4 is attached to the head in a headband shape, and the length of the adjuster band 4 is expanded or contracted to expand or contract the adjuster band 4. The diameter inside the 4 is variable, and the cap body 2 is securely attached to the head of the user U. The adjuster band 4 is also made of a band made of flexible plastic or the like, and the ends of the band are connected to each other at the rear part. The connecting portion is equipped with a length adjusting mechanism 6 that can adjust the length of the adjuster band 4 by turning a dial known as a bell met for a road bike, and the length of the adjuster band 4 itself expands and contracts. It is supposed to be done.

By the way, the helmet 1 of the present invention is the upper part thereof, and is characterized from the front part to the rear part. Further, although it is called a helmet 1, it does not protect the head of the user U from an external impact. Air blows downward from the front part of the helmet 1 to form an air curtain E, and the air curtain E reliably blocks droplets V containing bacteria and viruses, and is used by a user U such as a medical worker. It prevents secondary infections. That is, it is a device in which an "infection prevention mechanism" is deployed from the front part of the helmet 1 through the upper part to the rear part.

First, as shown in FIG. 1, an air through hole 10 provided in a penetrating manner from the rear portion to the front portion of the helmet 1 is formed in the upper portion of the helmet 1 according to the present application. On the base end side (rear side) of the air through hole 10, a blower fan 11 for taking in external air is provided in the through hole. The blower fan 11 is equipped with a battery 12 composed of an ion lithium battery or the like placed inside the helmet 1 (side rear in the example of FIG. 1), and the blower fan 11 is generated by the electric power of the battery 12. It rotates so that air can be taken into the air through hole 10.

As shown in FIGS. 1 and 5, the blower fan 11 may be provided at the rear portion of the helmet 1, but may be provided at the side portion or the top portion of the helmet 1, and the number is not limited to one, and a plurality of blower fans 11 may be provided. You may install it. Further, the blower fan may be a fan that can be attached to the waist of the user and blows air into the helmet through a duct tube.
A high-performance air filter such as a HEPA filter is installed at the outlet (inside the air vent) of the blower fan 11. This filter can reliably remove bacteria and viruses existing in the air supplied from the outside.

The air that has passed through the HEPA filter flows forward in the air through hole 10 and is blown out from the air discharge port 13 provided on the tip end side in the air through hole 10.
As shown in FIGS. 2 to 4, the air discharge port 13 is provided so that the air ejected to the front side of the helmet 1 passes through the front surface of the face of the helmet 1 user U. That is, the air discharged from the air discharge port 13 forms an "air curtain E" in front of the face of the user U. With this air curtain E, droplets V and the like coming from the front side of the user U toward the face of the user U (especially because the eyes, nose, and mouth are masked, the risk of infection is reduced), etc. It is possible to surely shut out.

As shown in FIGS. 6A and 6B, the air discharge port 13 is elongated to the left and right, and is used to make the air ejection angle (particularly the ejection angle in the front-rear direction) variable like the louver 14. The louver 14 is attached. In particular, in order to develop the air curtain E to the side of the face of the user U, as shown in FIG. 6B, the left and right sides of the air discharge port 13 extend rearward (side extension discharge port). 19) is also conceivable.

As shown in FIG. 1, a louver 14 for changing the direction of the discharged air is provided in the air discharge port 13, and as shown in FIG. 6, a louver angle for changing the angle of the louver 14 is provided. The adjusting lever 15 is provided in the vicinity of the air discharge port 13.
The helmet 1 as described above is worn by the user U (particularly a medical worker), and the blower fan 11 is operated to form an air curtain E in front of the face to prevent bacteria and viruses from the patient. The contained droplet V can be reliably shut out, and the secondary infection of the user U can be prevented. Further, even if the blower fan 11 sucks in the air containing the virus or the like, the virus is surely removed by the filter provided at the outlet of the blower fan 11, so that the virus is discharged from the air discharge port 13. The air, in other words, the air curtain E, is normal.

In addition, unlike a plastic shield plate, a hard shield member is not used, and the shield is formed by air, so the user U (doctor) wearing this helmet 1 is for medical use in surgery. There is no inconvenience such as the shield getting in the way when looking into the microscope.
By the way, the helmet 1 having the infection control mechanism described above has been devised in various ways other than forming the air curtain E made of clean air.

For example, as shown in FIG. 1, a louver 16 (induction louver 16, in other words, an air flow obstruction plate) is installed near the outlet of the blower fan 11 and also in the middle of the air through hole 10 in the longitudinal direction. The louver 16 has a role of blowing a part of the air from the blower fan 11 toward the head side of the user U (changing the wind light), and the turned air is the head of the user U. It will have the effect of cooling the part. Further, as shown in FIGS. 2 and 3, since the hole 5 is formed in a part (side portion) of the cap body 2, air is trapped in the cap body 2 and the head of the user U gets stuffy. You can prevent that.

In order to improve the operation of the air curtain E by the helmet 1 described so far, it is preferable to provide the air suction device 17 on the side facing the air discharge port 13 (lower side of the air discharge port 13).
For example, as shown in FIG. 7, pipes on tubes are provided on both sides (armpits) of the user U's outerwear, and blower fans 11 are provided on the outlet side (lower side in FIG. 7) of the pipes. The air of the air curtain E may be forcibly sucked in from the entrance side (upper side in FIG. 7) of the pipe and discharged to the rear of the user U. By doing so, a lubricated air circulation can be realized, and the air curtain E can be surely extended downward, which contributes to the prevention of infection.

As described above, the cap body 2 that covers and protects the head, the air through hole 10 provided in the upper part of the cap body 2, and the air discharge port 13 provided in the front end portion of the air through hole 10. A blower fan 11 capable of supplying air is provided inside the air through hole 10, and the air discharge port 13 is arranged so as to face downward toward the front portion of the cap body 2, and the air discharged from the air discharge port 13 is provided. However, according to the present invention, an air curtain E is formed in front of the face of the user U who wears the cap body 2, and the formed air curtain E can block a droplet V containing a bacterium or a virus. According to the helmet 1 having an infection prevention mechanism, the face that allows the user U to reliably prevent secondary infections while maintaining a good view and does not hinder the use of a medical microscope. A shield can be realized.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not restrictive.
In particular, in the embodiments disclosed this time, matters not specified, for example, operating conditions, operating conditions, dimensions, weight, etc. of the components do not deviate from the range normally practiced by those skilled in the art, and are normal. If you are a person skilled in the art, you are adopting items that can be easily assumed.

The size of the air discharge port 13 provided in the helmet 1 of the present invention, the size of the blower fan 11, the output, and the like can be appropriately changed, as long as the air curtain E capable of preventing infection can be formed. It can be anything.

1 Helmet 2 Cap body 3 Cushioning member 4 Adjuster band 5 Hole 6 Length adjustment mechanism 10 Air through hole 11 Blower fan 12 Battery 13 Air outlet 14 Louver 15 Louver angle adjustment lever 16 Louver (induction louver)
17 Air suction device 18 Filter 19 Side extension outlet E Air curtain U User V Splash

Claims (4)

A cap body that covers and protects the head, an air through hole provided in the upper part of the cap body in the front-rear direction, an air discharge port provided at the front end of the air through hole, and the inside of the air through hole. , Or on the extension of the duct that extends in front of it, with a blower fan that allows air to be supplied,
The air outlet is arranged on the front part of the cap body so as to face downward.
The air discharged from the air discharge port forms an air curtain in front of the face of the user wearing the cap body, and the formed air curtain can block droplets containing bacteria or viruses. A helmet with an infection control mechanism characterized by being present. The first aspect of the present invention is characterized in that the air supplied by the blower fan is configured to be supplied to the inside of the air through hole after passing through a filter arranged on the outlet side of the blower fan. Helmet with infection control mechanism. The air discharge port is provided with a louver that changes the direction of the discharged air, and the direction and thickness of the discharged air can be adjusted by the louver. A helmet having the infection control mechanism according to item 1 or 2. The invention according to any one of claims 1 to 3, wherein an induction louver for guiding the air in the air through hole to the head of the user is provided in the middle portion in the longitudinal direction of the air through hole. A helmet with an infection control mechanism.

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