ES1276189U - Filtered air flow medical device (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Filtered air flow medical device characterized in that it comprises 4 components that create a breathing chamber that connects to the outside through a window (2) sealed by a screen-curtain of filtered air (5p) and at the same time circulates internally filtered air expelling air with CO2 from it. The 4 components are: 1. Main body (1a): it covers the face or head of the user and has means for fixing and coupling to the user's head: it comprises at least one window (2) with a screen-curtain of air (5p) filtered between (4p) and (3p) that seals the window opening; some screen expulsion conduits (8e) communicate on one side with the expulsion conduits (8e) circuit and on the other side they end in the body (1a) in the screen expulsion holes and/or slots (4p) in the window (2); orifices and/or slots (3p) for suction screen in the window (2), they follow with suction ducts (8a) screen in the body (1a) that communicate with the suction ducts (8a) circuit. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Filtered air flow medical device

TECHNICAL SECTOR

The present invention refers to a medical DEVICE improved by filtered air flow that acts as PPE between the user and qualified medical personnel, preventing an infection from being transmitted between them. It is applicable in the medical and veterinary field, in the field of first aid as well as in the prevention of infections in pandemics. It is used for medical purposes as it allows safe access to the patient's mouth and nose.

BACKGROUND OF THE INVENTION

The highest risk of infection at this time is from COVID 19.

Regarding the professional sectors with the highest exposure index, there is a recent article in The New York Times newspaper, which puts Dentistry at the forefront as the profession with the highest risk due to several factors:

1. Patient care.

2. Activity in the oral cavity and the presence of saliva, saliva or mucus generally, but may incorporate blood or other fluids.

3. Working with ultrasound, and rotating materials that produce aerosols

Several studies have shown that COVID-19 is in the air through aerosols formed during medical procedures. Dental treatments often involve surgical procedures using air or water syringes, high-speed turbines, micromotors, and ultrasonic scalers. These devices produce aerosols that contain potentially infectious agents, such as those found in the blood, saliva, and oral cavity of the patient. Patient blood and saliva are spread as sprays and drops during dental treatments and are considered sources of cross contamination, having the potential to cause pathogenic infections not only in patients but also in dental clinic staff. Contaminating aerosols and splashes can also spread to tool and equipment surfaces and the general dental practice environment. It is recommended that dentists and dental hygienists wear personal protective equipment (PPE) such as masks, gloves, goggles and gowns to protect themselves from exposure to infectious aerosols and splashes containing saliva and blood from the patient. However, this solution is insufficient. The particles can stick to other parts of the body. In pandemic situations, every patient must be considered infected, and therefore the most powerful measures must be applied. In these cases, a complete and total disinfection of the consultation must be carried out when a patient is finished treating, since the aerosols allow the survival of the viruses for several hours. In the case of oral health, it must be considered that several of the instruments produce a very high amount of aerosols, so the risk is higher. A more effective solution is the use of screens or screens, which completely prevent the passage of particles to the toilet. However, they also do not allow it to perform its function in the patient's body. Therefore, it is not an applicable solution in its current form. The applicant does not know of any solution to these problems as effective as the one claimed. This invention uses the filtered air (5p) screen-curtain concept.

EXPLANATION OF THE INVENTION

The invention consists of a filtered air flow medical device according to the independent claim.

It is a medical device by filtered air flow that allows to stop the aerosols generated during the treatment of the patient, considerably reducing the risk of infection for the health worker or for any subsequent user who accesses the room for the consultation. It consists of creating a gas exchange chamber so that the patient can breathe filtered air in it independently of the healthcare personnel. The professional accesses the mouth or nose to be treated through a window protected by a screen -air curtain that allows most or all of the gases that participate in the patient's breathing to pass through the filtering system. It can be very simple, consisting of an adaptation of a filtering face mask or a more complex diver's helmet type of different shape. The goal is to create a breathing chamber that completely separates the breath from the medical personnel of the user's breathing, filtering the respiratory gases through filters and disinfecting themselves by means for this purpose. The window is dimensioned considering the maximum opening of the patient's mouth to manipulate in it and it is provided with various external screens (figure 4) transparent and interchangeable, or another form of screens or window sheets (6) and (7) that seal the window, relying on the invention and looking at it [use as an example a set of magnets (18)]: these screens have holes They are strategic that allow the passage of instruments such as a dentist's drill, also have a margin of movement while maintaining their sealing function [by the filtered air screen-curtain (5p)] of the gas exchange chamber.

The filtered air flow medical device is made up of 4 parts

1. Main body (1st)

2. External screen-curtain circuit (has its own support structure) 3. Inspiration circuit (has its own support structure) 4. Expiration circuit: (has its own support structure)

The main body (1a) is a mask or helmet type, which covers the face or head and has means for fixing and coupling to the user's head; It comprises ducts (8e) in the main body (1a) that expel filtered air through the expulsion holes and / or slots (4p) in the window (2); a screen of filtered air (5p) is formed that is sucked through holes and / or suction slots (3p) that are on an opposite or adjacent side of the window, sealing it; From these suction holes (3p) in the window (2), the filtered air continues through the suction ducts (8a) in the body (1a) that communicate with the suction ducts (8aa) of the external circuit that participates in the formation of filtered air screen (5p). There is at least one window (2) in the main body (1a)

External screen-curtain circuit: the suction ducts (8a) in the main body (1a) connect with the suction ducts (8aa) of the external screen-curtain circuit, they follow the previous filter (8fa) circuit, motor with impulsion propeller (8mh) circuit, optional after filter (8fe) circuit, exhaust ducts (8ee) circuit that connect with the exhaust ducts (8e) in the main body (1a).

Inspiration circuit: there is an air intake (6a), filter (6f), first inspiration duct (6as), motor with impulsion propeller (6mh), second inspiration duct (6in), diffusion holes and / or slots (6i) that provide filtered air to diffuse (1-O2) in the breathing chamber of the mask, helmet, hood. There may be means of disinfection such as UV-C, ionization among others.

Expiration circuit:: air intake (7a) expiration, first duct (7ex), expiration, filter (7f) expiration, motor with drive propeller (7mh) expiration, second duct (7fu), expiration, holes and / or ejection slots (7ee) expiration. Interposed there are disinfection elements for the expelled gases (1-CO2) produced by expiration.

Filtered air screen-curtain (5p): the filtered air screen is formed between the exhaust holes and / or slots in a window frame and the suction holes and / or slots on opposite and / or adjacent sides of the window. same window or opening. The air curtain is formed by diffuse air. The diffuse filtered air curtain increases safety between the user of the invention and the healthcare provider. The equipment itself can have disposable parts or be treated to be used on another occasion, if disinfection is careful.

It is a very flexible system, which admits multiple variants in each of its components and, which satisfies the main objective of its design, which is to avoid the action of aerosols, turning the consultation or operating room into a safer work area, both for the patient as well as the toilets.

The invention can comprise bactericidal and antiviral substances or ions that destroy viruses, bacteria and pathogens in the filtered air circuit; It can be built with materials that include antiviral and bactericidal substances such as silver ions or other options. The window (2) can be sliding, with hinges. A motor with its activation mechanisms can facilitate the opening and coordination of the window. The leaves are to be hidden in sealed compartments for disinfection; The invention can comprise LED chromotherapy lights and disinfection means such as cold plasma at atmospheric pressure, ultraviolet (UV-C) or silver wire fabrics.

It can include a speaker and / or microphone, a light or alarm that warns that the window (2) it is not properly closed and there is a danger of infection. Logically, it includes filters, propeller motors and disinfection means to favor the user's breathing (aspiration and expiration).

It includes external elements for filtering and disinfection of the breathed, expired air and the air curtain, consisting of filters, motors with impulsion propellers and ducts,

BRIEF DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached in which, with an illustrative and non-limiting nature, the following has been represented.

Figure 1: diagram of an embodiment of the invention.

Figure 2: Side perspective view of the air curtain mask of one embodiment.

Figure 3: perspective view of the mask with air curtain of figure 2 from the left side.

Figure 4: front view of a window leaf of the model of figure 2 that has a metal circle (21) for the magnets (18) and holes for drilling or other devices (22) and (23)

Figure 5: perspective view of a specific air curtain mask for dentists.

Figure 6: An enlarged perspective view of the model of figure 5.

Figure 7: perspective view of a mask with an air curtain with a cylindrical body that completely envelops the patient's head.

Figure 8: enlarged detail in perspective of figure 7.

33

PREFERRED EMBODIMENT OF THE INVENTION

An embodiment of the invention will be briefly described below, as an illustrative and non-limiting example thereof.

The scheme (figure 1) of the medical device by filtered air flow type filtration face mask with window or filtration helmet with window, comprises different elements that allow the operation of the screen-curtain of filtered air (5p): body of a mask or helmet [differently shaped, in drawing 7 and 8 it is cylindrical (1a)], window (2), ejection duct (8e) and holes and / or ejection slots (4p) in the window (2) and holes and / or suction grooves (3p) and suction ducts (8a) that communicate with the corresponding suction ducts (8aa) in the filtered air screen-curtain circuit; follows a front filter (8fa), and a propeller motor (8mh) ejection ducts (8ee) of the circuit and follows ejection ducts (8e) in window (2). The air flow sucked into the suction duct (8a) is defined as (8as). The flow of air expelled in the exhaust duct (8e) is defined as (8ex).

For the oxygen supply function (1-O2) there is an air intake (6a), a filter (6f), a motor (6mh) with propellers and some ducts (6in) that carry the filtered air to the breathing chamber (The air can also be disinfected by ionization or UV-C Led, oxygenated or improved with other means).

For the expiration function (1-CO2) there is an air intake (7a), ducts (7ex), a filter (7f), a motor (7mh) with propellers that carry the CO2 and filtered air, disinfected outside of the breathing chamber.

Figure 2 shows a simple mask that can be personal or for several patients after disinfection. Each patient buys the mask that is made of medical silicone (or another material with similar characteristics) and can be used for several family members. It is disinfected at home and when they arrive at the dentist (he disinfects it again) the different ventilation motors that the dentist has are connected to it. Ventilation equipment for the window, aspiration and expiration naturally have their own filters and between the connection of the ventilation equipment and the mask are sandwiched single-use filters. The magnets (18) are seen to close with the window panes of figure 4. The fastening means are indicated with (20). The connections (8e) and (8a) connect with the corresponding ones (8ee) and (8aa).

The cylindrical helmet or bell of figure 7 is more professional since it has an inner cylindrical ring (7) that acts as a window closure; there is another outer cylindrical ring (6). The two rings move on guides by programmable mechanisms. The rings have strategic holes and the dentist chooses the best option by programming. The window frame has a screen-curtain of filtered air (5p). The cylindrical hull is sealed by a flexible element (19) type diving helmet. There may be a simpler version with just the outer cylindrical ring.

NOTES

The external exhaust duct (7fu) is not shown as there are exhaust holes near the filter and the filter is near the propeller drive motor.

The first inspiration duct (6as) is not represented as there are suction or air intake holes near the filter and this is close to the inspiration impulse propeller motor (6mh).

Claims (52)

CLAIMS 1.- Medical device by filtered air flow characterized in that it comprises 4 components that create a breathing chamber that connects with the outside through a window (2) sealed by a screen-curtain of filtered air (5p) and at the same time circulate filtered air internally, expelling air with CO2 from it. The 4 components are: 1. Main body (1a): covers the face or head of the user and has means of attachment and coupling to the head of the user; It comprises at least one window (2) with a screen-curtain of air (5p) filtered between (4p) and (3p) that seals the window opening; some screen expulsion conduits (8e) communicate on one side with the expulsion conduits (8e) circuit and on the other side they end in the body (1a) in the screen expulsion holes and / or slots (4p) in the window ( 2); orifices and / or slots (3p) for suction screen in the window (2), they follow with suction ducts (8a) screen in the body (1a) that communicate with the suction ducts (8a) circuit. 2. External screen-curtain circuit: suction ducts (8aa) circuit, front filter (8fa) circuit, motor with impulsion propeller (8mh) circuit, optional rear filter (8fe) circuit, exhaust ducts (8ee) circuit. 3. Inspiration circuit: inspiration air intake (6a), inspiration filter (6f), inspiration first duct (6as), motor with impulsion propeller (6mh) inspiration, inspiration second duct (6in), orifices and / or slots diffusion (6i) inspiration. 4. Exhalation circuit: air intake (7a) expiration, first expiration duct (7ex), filter (7f) expiration, motor with impulsion propeller (7mh) second expiration duct (7fu), expiration, expulsion holes (7ee ) expiration 2nd- Medical device by filtered air flow, according to claim 1, characterized in that it comprises chemical means of anti-pathogen disinfection that contain at least one substance such as essential oils, alcohol, soap ions or other options. 3a- Medical device by filtered air flow, according to claim 1, characterized in that it is built with materials that include ion-type media or equivalents that destroy viruses, bacteria and pathogens. 4th- Medical device by filtered air flow, according to claim 1, characterized in that it has physical means of disinfection such as cold plasma at atmospheric pressure, ultraviolet light (UV-C), (UV-LED), or yarn fabrics silver, ion generator type air purifying electronic system, germicidal led light, electricity. 5a- Medical device by filtered air flow, according to claim 1, characterized in that it comprises LED chromotherapy lights 6.- Medical device by filtered air flow, according to claim 1, characterized in that it comprises antitoxic means using physical and / or chemical methods. 7. Medical device by filtered air flow, according to claim 1, characterized in that it comprises a watertight protection zone that prevents directing the germicidal ultraviolet light directly to the user. 8.- Medical device by filtered air flow, according to claim 1, characterized in that it has a device on the body or attached support device that protects user areas by a screen-curtain of filtered air with at least one of the following media: anti-pathogen ions, media using anti-pathogenic chemical methods, media using anti-toxic chemical methods, media using anti-pathogenic physical methods, 9a.- Medical device for filtered air flow, according to claim 1, characterized in that it comprises at least one disinfection treatment chamber, channel or pipe with a preferably spiral shape to guide the circulation of the aspirated air and to carry out the treatment of disinfection of the air using germicidal UVC ultraviolet light, before diffusion. 10a- Medical device by filtered air flow, according to claim 1, and any between 2, 3, 4, 6, 7, 8, 9 characterized in that it comprises external means for filtering and disinfecting the breathed, expired air and the curtain air, consisting of filters, motors with propellers and ducts, 11a.-Filtered air flow medical device, according to claim 1, characterized by being built with self-disinfecting materials, being disinfectant, reusable, 12a.-Filtered air flow medical device, according to claim 1, characterized in that it comprises means that generate heat and / or cold to control temperature, disinfection, peltier cell type heat and cold stimulator and / or the like, cell cooling peltier, peltier cell heating, peltier cell disinfection; 13. Medical device by filtered air flow, according to claim 1, characterized in that it contains means for heating and / or cooling the filtered and / or driven air. 14a- Medical device by filtered air flow, according to claim 1, characterized in that the window (2) is sliding 15a- Medical device for filtered air flow, according to claim 1, characterized in that the window (2) is made of flaps. 16a- Medical device by filtered air flow, according to claim 1 characterized in that it comprises a motor for opening and closing the window. 17a- Medical device for filtered air flow, according to claims 1 and 14, characterized in that it comprises mechanisms for activating the window opening motor 18a- Medical device by filtered air flow, according to claim 1, characterized in that the external (6) and internal (7) sheets are concealable in sealed disinfection compartments. 19. Medical device by filtered air flow, according to claim 1, characterized in that the window comprises movable leaves, 20. Medical device for filtered air flow, according to claim 1, characterized in that the window comprises a cover 21a.- Medical device by filtered air flow, according to claim 1, characterized in that the window includes a frame, on which the window sashes are hinged, provided with the filtration means. 22a.- Filtered air flow medical device, according to claim 1, characterized in that the window panes have separate filters. 23a.- Medical device by filtered air flow, according to claim 1, characterized in that the window panes have a transparent or opaque waterproof screen and form an indivisible unit 24a.- Medical device by filtered air flow, according to claim 1, characterized in that each sheet is made of a double concentric frame for fixing a filter or a transparent or opaque waterproof sheet 25a.- Filtered air flow medical device, according to claim 1, characterized in that the window has folding closure sheets, for example of the accordion type. 26a Filtered air flow medical device, according to claim 1, characterized in that the window includes means for closing by magnets. 27a.- Filtered air flow medical device, according to claim 1, characterized in that the window is symmetrical. 28a.- Filtered air flow medical device, according to claim 1, characterized in that the window is asymmetric. 29a.- Medical device for filtered air flow, according to claim 1, characterized in that the window is rectangular, square, elliptical, circular, rhomboid, hexagonal, regular or irregular polygon, trapezoidal, oval, or semilunar. 30a.- Medical device for filtered air flow, according to claim 1, characterized in that the window includes a single sheet. 31. - Filtered air flow medical device, according to claim 1, characterized in that the window has more than one leaf. 32a- Medical device for filtered air flow, according to claim 1 characterized in that it comprises a speaker and / or microphone 33a- Medical device for filtered air flow, according to claim 1, characterized in that it comprises a light or alarm that warns that the window (2) is not properly closed. 34th Filtered air flow medical device, according to claim 1, characterized by having a manual pneumatic ball or other manual pneumatic element. which functions as an engine / propeller. 35a.- Filtered air flow medical device, according to claim 1, characterized in that the covering body of the nose and mouth includes an expiration valve. 36a.- Filtered air flow medical device, according to claim 1, characterized in that the window includes mechanical opening / closing means. 37a.- Medical device for filtered air flow, according to claim 1, characterized in that the window includes electrical opening / closing means. 38th Filtered air flow medical device, according to claim 1, characterized in that it contains mechanical, electrical and electronic, automatic, programmable elements. 39a.- Medical device by filtered air flow, according to claim 1, characterized by having different means that use different types of sealing such as manual, mechanical or by electrical means or other types of manual pump, compressed air bottle, etc. 40a.- Medical device by filtered air flow, according to claim 1, characterized in that the window leaves when opened, keeps the internal face hygienic by folding on itself, by being covered by a cover, by being protected by a flow of filtered air, by a disinfectant filtered air flow and / or by means of disinfection using physical and / or chemical methods. 41a.- Filtered air flow medical device, according to claim 1, characterized in that the window has roll-up leaves. 42a.- Filtered air flow medical device, according to claim 1, characterized in that there is at least one air pressure sealing device (positive and / or negative air). 43a.- Medical device by filtered air flow, according to claim 1, characterized in that the body contains at least one frame-type opening, hole with screw or lace cap or other coupling 44a.- Filtered air flow medical device, according to claim 1, characterized in that it includes air filtering means and the filters are replaceable. 45a Filtered air flow medical device, according to claim 1, characterized by using HEPA filters or equivalent 46a.- Filtered air flow medical device, according to claim 1, characterized in that it is an independent mouth mask with an independent and attachable nasal mask. 47a.- Medical device by filtered air flow, according to claim 1, characterized in that the main body of the buccal or nasal mask additionally covers the eye area, by means of a screen that allows filtering and / or transparent screen or glasses , being able to incorporate additional filters. 48a.- Medical device for filtered air flow, according to claim 1, characterized in that the basic elements of at least one device such as pressure device, aspirator device and / or filtered air flow diffuser (filter, propeller motor, means of disinfection, deposits of anti-pathogenic chemical substances and others) and others named in the memory are in a supplementary element such as collar, belt and other equivalents. 49a.- Medical device for filtered air flow, according to claim 1, characterized in that it comprises in the body, a coupled support device or supplementary element, the means for controlling and regulating the flow of filtered air and other functions already included in the memory, such as window opening among others. 50a.- Medical device for filtered air flow, according to claim 1, characterized by having a positive and / or negative pressure device for sealing 51a.- Medical device by filtered air flow, according to claim 1, characterized by having bluetooth, translator, elements to listen to music, vital signs analyzer, oxygen saturation, air quality, 52a.- Medical device by filtered air flow, according to claim 1, characterized by having a led tube type led in the nose with a stimulating function, with means that produce movement, percussion vibration, oscillation among others to stimulate respiration; with fiber optic led device, drug and chemical diffuser,