FR2782275A1 - Filter for removal of all particles, microorganisms and allergens from air for medical use, comprises primary and secondary filters, ultraviolet lamp and final filter - Google Patents

Abstract

The filter comprises a primary filter (1), a secondary filter (4), a UV lamp (2) to kill the microorganisms and a final filter (8,10,12,14) which removes all particles, microorganisms and allergens from the air before providing it to a sealed sterile shell enclosing a cabin, bed, stretcher, mask, chair or wheelchair.

Description

The present invention relates to a device, mechanical, electrical,

  electronic, or any other form or process carried out by any means, in any material, in any situation and as an indication and not exhaustive, which can be used to filter and purify the air in all places, for example and in a non-exhaustive way, in hospital environment, in dwellings, in professional premises, in motor vehicles or not, and so

  general in all places inhabited or not, where the air must be purified.

  The present invention is not limited to the forms and methods of embodiments described and can undergo different modifications and come in all forms and methods or variants not

  exhaustive in time and space.

  The present invention may, by way of example and in a non-exhaustive manner, be used to isolate a patient from a contaminated area and protect the nursing staff likely to be contaminated by

the patient.

  The present invention may by way of example and not

  exhaustive be used statically or mobile.

  The present invention may, by way of example and in a non-exhaustive manner, be composed at the outlet of a high-efficiency filter, of a sterile cabin, of a stretcher provided with a waterproof and sterile shell, of a bed provided with a waterproof and sterile shell, a fixed or mobile chair fitted with a waterproof and sterile shell, a combination

  waterproof and sterile, a waterproof or sterile mask or hood.

  Several air treatment devices are already known by laminar flow or turbulent flow. Laminar flow devices are in fixed installations and very expensive. According to users, the turbulent flow devices currently on the market are lacking in performance, particularly in

hospital.

  Laminar air treatment devices represent the most efficient system for protection against aerobiocontamination, but their number is limited and all patients who need it do not benefit from it, and are therefore placed in room ordinary without air treatment. On the other hand, there is a lack on the market of isolation cells with high-efficiency filtration protecting contagious diseases from patients who have to be transported to hospitals or

  ambulance or in any situation.

  Advantageously, this device prevents a patient from being contaminated and

  to contaminate the hospital staff or nursing staff.

  The present invention proposes, in a non-exhaustive manner, to make up for the lack of laminar flow material and to protect against

  aerobiocontamination of the patient and the nursing staff.

  The importance of having clean air in hospitals or at home for the sick as well as in good health, in nurseries, in schools, in retirement homes, in the workplace or in all places where indoor pollution and outdoor pollution is rampant, is an observation by the public authorities and by everyone who has become aware of the extent of the problem in the countries

  industrialized as in underdeveloped countries.

  The device according to the invention operates in such a way that the air is sucked into a primary filter, then maintained in turbulence in a specific zone provided with low-voltage tubes with ultraviolet radiation, then passing through blades d '' a motor, then compressed by compression into a high efficiency terminal filter. Advantageously, the device filters the first by suction

  larger particles and then destroyed by ultra-

  purple living microorganisms kept in suspension using a second filter the necessary turbulence time for their destruction, then pushes the air by compression into the high efficiency terminal filter, itself comprising degree spreads filtration to retain allergens larger than 0.3p. Advantageously, the primary filter fitted with tight seals retains

  large particles.

  Advantageously, the secondary filter fitted with tight seals retains

air in an area of turbulence.

  Advantageously, the turbulence zone is provided with several tubes

  ultraviolet destroying living microorganisms.

  Advantageously, the rotor provided with blades housed in its sealed box pushes the air, like a piston in the high efficiency terminal filter. Advantageously the aspiration of air up to the level of the rotor zone and the thrust of the air into the high efficiency terminal filter, avoids the projection of particles coming from the rotor or

blades.

  The device according to the invention is provided with a mechanical assembly comprising a chest of the drawer type with watertight opening and closing, allowing the quick and easy change of filters,

  ultraviolet tubes, and device maintenance.

  The device according to the invention is provided with an electrical assembly comprising the power supplies, the time controls of

  operating, safety devices.

  The device according to the invention is provided with an electronic assembly comprising the programming, the operating modes, the fouling saturation gauge of the terminal filter, the remote controls. The device according to the invention is provided with a box and by way of example and in a non-exhaustive manner of stainless steel for the hospital environment, in sheet metal with surface treatment, in material

  plastic, wood panel or similar.

  The device according to the invention is connected to the box using

  slides allowing the exit of the trunk and its maintenance.

  The device according to the invention can be non-exhaustively connected at the outlet of the high-efficiency filter to a sterile waterproof cabin, fixed or mobile, to a stretcher provided with a sterile waterproof shell, to a bed provided with a sterile waterproof shell , to a fixed or mobile chair fitted with a sterile waterproof shell, to a suit

  waterproof sterile, with a sterile waterproof hood mask.

  The present invention may be non-exhaustive, provided with an air intake air collector, making it possible to purify the air in specific areas or to aspirate particles in areas where the

  air turbulence is insufficient.

  The device according to the invention may, in a non-exhaustive manner, be provided on the combination, with air outlets themselves equipped with

high efficiency filters.

  The suit may, in a non-exhaustive manner, be equipped with watertight rings receiving filtration blocks intended for the exhaust of the air flow sent into the suit. The filters serve to prevent any intrusion of microorganisms into the suit and prevent any rejection of contaminating microorganisms from the patient to

outside of the suit.

  The device according to the invention can, in a non-exhaustive manner, be equipped on all types of fixed or mobile devices serving to improve the quality of the air, whether it is a room equipment or a individual equipment for placement or

  transport of patients at risk of contamination.

  The device according to the invention, and in a non-exhaustive manner, can be used on land, underground, on water, under water, in the air, in

all situations.

Claims (8)

Claims   1) Autonomous or controlled device, mechanical, electrical, electronic, magnetic, thermal, chemical or any other form or process carried out by any means, in any material,   all situations, intended to filter the air.   2) Device according to claim 1 characterized in that the   device can be fixed, mobile, portable.   3) Device according to claims 1 and 2, characterized in that   the device can be used in any premises or areas where the air must be purified.   4) Device according to claims 1, 2 and 3 characterized in that   that the purified air outlet can for example be connected to a sterile waterproof cabin, to a stretcher with sterile waterproof shell, to a bed with sterile waterproof shell, to a fixed or mobile chair with sterile waterproof shell, a sterile waterproof suit, to a mask waterproof sterile hood.   ) Device according to claims 1, 2, 3, 4 characterized in that   that a cabin, a stretcher, a bed, a fixed or mobile armchair, a suit, a hood mask, each being provided with a sterile waterproof shell, is equipped with air exhaust valve, these valves being -Even fitted with high efficiency filter or all other type of filter.   6) Device according to claims 1, 2, 3, 4, 5 characterized in   what the air purification device upstream of any device, such as a coverall or a hood mask or any other form of protection and isolation of a contaminated person risking further contamination or risking contaminating all nursing staff or any other person, this device draws in the air and then discharges it onto the absolute filter, avoiding any possibility of dispersion in the purified air, of particles emitted by the engine or the blades of the engine or any other particle from the device.   7) Device according to claims 1, 2, 3, 4, 5 characterized in   that the air sucked into the device can be purified by low-voltage UV lamps, before this air is pushed into the terminal filter, thus preventing microorganisms from becoming housed in the terminal filter in living form. which would represent a   risk of infection when handling the filter units.   8) Device according to claims 1, 2, 3, 4, 5, 6, 7,   characterized in that the secondary filter intended to maintain a turbulence between the primary filter and the secondary filter is composed of specific fabrics to purify the air without necessarily increase the pressure drop.   9) Device according to claims 1, 2, 3, 4, 5, 6, 7, 8,   characterized in that the final filter called absolute filter or high efficiency filter, provided with specific seals, is composed of specific materials, of progressive porosity allowing the retention   or the trapping of all particles, micro-organisms or allergens.   ) Device according to claims 1, 2, 3, 4, 5, 6, 7, 8, 9   characterized in that the high efficiency filter can be, in a non-exhaustive manner, equipped with closure systems on its two faces, thus avoiding the rejection into the air of particles or micro-organisms or any other pollutant as soon as the terminal filter must be   replaced by another terminal filter.