EP2523695A1

EP2523695A1 - Appliance for disinfecting the hands of a user

Info

Publication number: EP2523695A1
Application number: EP11705219A
Authority: EP
Inventors: Claude Ferrand
Original assignee: Feldain Bernard
Current assignee: Feldain Bernard
Priority date: 2010-01-14
Filing date: 2011-01-12
Publication date: 2012-11-21
Also published as: RU2012129923A; FR2955030B1; FR2955030A1; US20130136669A1; WO2011086323A1; CA2785164A1

Abstract

The invention relates to an appliance for disinfecting the hands of a user, said appliance including: a disinfection chamber (1), at least one opening (10) through which the user inserts his or her hands (M) in the disinfection chamber; separators (4) placed in the disinfection chamber (1) such that the fingers are separated when the user inserts his or her hands in said chamber, characterised in that the disinfection chamber (1) is provided with a device for spraying a disinfectant product in said chamber and a device for blowing air into said chamber, said two devices operating at the same time, and in that the spraying device consists of injectors (11a, 11b, 12a, 12b) suitable for scattering a disinfectant product into the blown air stream, the scattering of the disinfectant product being carried out in a spatial sector defined by a vertical plane and an inclined plane of 1° to 90°, preferably 45° to 90°, relative to the axis of said air stream.

Description

Apparatus for disinfecting the hands of a user

Description

Technical Field of the Invention

The invention relates to an apparatus for disinfecting the hands of a user.

It concerns the general technical field of sanitary appliances and more particularly those allowing the disinfection and the drying of the hands.

State of the art

Devices for the disinfection of hands are well known in the prior art. US Pat. Nos. 4,942,631 (ROSA), US 2,814,081 (STEVENSON), WO 98/53752 (DEIBERT), WO 00/48640 (SCHNEIDER), WO 2006/058374 (CHOATE) describe, for example, apparatus having a chamber disinfection device with an opening allowing the user to insert his hands into said chamber. The apparatuses described in WO 98/53752 (DEIBERT) and WO 2006/058374 (CHOATE) may also comprise a drying device. Thus, a user can insert his or her hands, clean them with the cleaning solution and / or disinfection, and dry them, without any manual operation is necessary.

In general, injectors are arranged in the disinfection chamber so as to spray a disinfecting substance on the surface hands. These disinfecting devices are however not completely effective because they do not disinfect all places of the hands, only the front and back being treated. Document US Pat. No. 3,220,424 (NELSON) discloses an apparatus for disinfecting the hands of a user, comprising a disinfection chamber, at least one opening through which the user places his hands in the disinfection chamber, spacers are in said disinfection chamber so that the fingers move apart when the user introduces his hands. However, a guide for the hands is interposed between the spacers and the spray device, so that the disinfectant product is not directly sprayed on the user's hands, said guide forming an obstacle reducing the effectiveness of the device. apparatus. Faced with this state of affairs, the main objective of the invention is to provide a more effective disinfection apparatus than those known from the prior art.

Disclosure of the invention.

The solution proposed by the invention is an apparatus for disinfecting the hands of a user, said apparatus comprising:

- a disinfection chamber,

at least one opening through which the user places his hands in the disinfection chamber,

This apparatus is remarkable in that spacers are placed in the disinfection chamber so that the fingers move apart when the user enters his hands in said chamber.

In devices known from the prior art, if the user introduces his hands with the fingers tight, the disinfectant product can not reach all contaminated areas. The invention allows on the contrary to systematically disinfect all the places where a maximum of bacteria can accumulate, that is to say between the fingers. To simplify the design of the apparatus, the spacers are preferably vertical rods disposed in the disinfection chamber, the spacing between said rods defining the spacing of the fingers. The decontamination chamber is advantageously provided with two elliptical openings through which the user introduces his hands into the disinfection chamber. This elliptical shape makes it possible to limit as much as possible the dispersions of the disinfectant product out of the chamber. The disinfection chamber is preferably provided with a device for spraying a disinfectant into said chamber and a device for blowing air into said chamber, both said devices operating at the same time. The vaporization combined with the air flow thus makes it possible to mist, or nebulize, the disinfectant product inside the chamber.

The vaporization device preferably consists of injectors diffusing a disinfecting product in a flow of blown air, said injectors being oriented in the disinfection chamber so as to diffuse said product in a spatial sector defined by a vertical plane and an inclined plane of 1 ° and 90 °, preferably 45 ° and 90 °, relative to the axis of said air flow. Under these conditions, the disinfectant mixes optimally with air to form a homogeneous micro-fog that can more easily reach the entire surface of the hands and especially between the fingers. Advantageously, the vaporization device preferably consists of injectors diffusing a disinfecting product, said injectors being disposed in the disinfection chamber so as to diffuse said product on the front and the back of the hands, the diffusion being from the fingertips to the wrist and from the wrist to the end of the fingers. It is thus possible to effectively treat the entire surface of the hands.

For greater efficiency, the spacers can also directly integrated a device for spraying the disinfectant directly between the fingers.

The disinfection chamber may be provided with a device for blowing hot air into said chamber so as to dry the hands after the disinfection phase. In this case, the disinfection phase and the drying phase are automatically controlled by a programmable control unit.

The disinfection chamber is preferably provided with a window allowing the user to visualize the position of his hands in said room.

The bottom of the disinfection chamber can be inclined or funnel-shaped so as to facilitate the flow of condensates to a low point, the latter being connected to a discharge duct opening into a storage container.

The disinfection chamber advantageously comprises a liftable hood which, once raised, provides direct access to the interior of said chamber. Ventilation can be provided in the disinfection chamber so as to evacuate any vapors liable to ignite during the drying phase. According to one embodiment, the disinfection chamber is fixed on a cell in which are arranged the mechanical elements to operate it.

In another embodiment, the apparatus comprises a cell in which are arranged the mechanical elements for operating the disinfection chamber, said cell and said chamber being juxtaposable and removable.

In an alternative embodiment, the disinfection chamber is provided with Xenon vapor lamps for disinfecting hands.

The apparatus object of the invention can be integrated into a table, a wall, etc. Description of the figures.

Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which will follow, with reference to the accompanying drawings, carried out as indicative and non-limiting examples and in which:

FIG. 1a is a schematic perspective view of a preferred embodiment of the apparatus forming the subject of the invention, the disinfection chamber being closed,

FIG. 1b shows the apparatus of FIG. 1 with the disinfection chamber open, FIG. 2 is a diagrammatic sectional view along AA of the apparatus of FIG. 1a,

FIG. 3a is an enlarged view of section B-B of the apparatus of FIG. 2,

- Figure 3b is a sectional view along C-C of the apparatus of Figure 3a, only the disinfection chamber being shown,

FIG. 3c is a sectional view along D-D of the apparatus of FIG. 3b, only the disinfection chamber being shown,

FIG. 4 schematizes a possible implantation of the apparatus which is the subject of the invention, the disinfection chamber being arranged on one side of a wall and the cell enclosing the mechanical elements of the other,

FIG. 5 schematizes another possible implantation of the apparatus which is the subject of the invention, the disinfection chamber being arranged under the table top,

FIG. 6a is a sectional view of the disinfection chamber in an alternative embodiment;

FIG. 6b is a sectional view along E-E of the disinfection chamber of FIG. 6a,

- Figure 7a is a sectional view of the disinfection chamber in another embodiment,

FIG. 7b is a sectional view along F-F of the disinfection chamber of FIG. 7a,

- Figure 8a is a sectional view of the disinfection chamber in yet another embodiment,

- Figure 8b is a sectional view along G-G of the disinfection chamber of Figure 8a.

Embodiments of the invention The apparatus object of the invention is intended to disinfect the hands of a user. It is particularly intended to be implanted in a medical environment such as: hospital, medical office, operating room, etc. It can also be located in a hotel, restaurant, factory, home, etc.

Referring to Figures 1a and 1b, the apparatus consists of an upper part forming a disinfection chamber 1 and a lower part 2 forming a cell in which are arranged the mechanical elements (pump, blower,. ..) necessary for the operation of said chamber. The latter advantageously comprises a liftable cover, articulated by hinges of horizontal axis, and, once raised (Figure 1b), a direct access to the interior of the cavity. This is particularly useful during technical maintenance and / or during cleaning of the chamber 1. Similarly, the cell 2 is provided with a door 200 hinged by means of hinges of vertical axis, and allowing direct access to the mechanical elements necessary for the operation of the chamber 1. If these mechanical elements generate vibrations, the cell 2 preferably rests on antivibration mounts 210, of the type made of rubber. And in the case where these mechanical elements generate significant noise, then the walls of the cell 2 can be covered with a sound insulation such as rockwool, cork, polyester, sandwich panel, etc..

In the preferred embodiment shown in Figures 1a and 1b, the apparatus is in the form of a terminal intended to be placed on the ground, said terminal having a height of about 150 cm, a width about 60 cm and a depth of about 45 cm. This terminal is preferably formed of a metal structure covered with sheet metal. In this case, the chamber 1 is directly attached to the cell 2. Other shapes and dimensions can of course be provided. In particular, it can be provided that the chamber 1 and the cell 2 are juxtaposable and removable. Referring to the example of Figure 4, it is then possible to arrange the chamber 1 on one side a wall Mu (opening for example in a hallway, hall, etc.) and the cell 2 on the other side of said wall (opening for example in a technical room). This solution can be used in the case where the cell 2 contains noisy mechanical elements and / or capable of generating vibrations. It is also possible to integrate the device, including the chamber 1, directly into a wall, etc. Referring to Figure 5, the chamber 1 is for example integrated in a table T, under the tray of said table. Thus, when people are sitting around the table T, they have the opportunity to insert their hands in room 1 to disinfect before and / or after their meal.

In practice, the disinfection chamber 1 consists of a partially sealed cavity in the center of which is disposed a device for spraying a disinfectant product. The chamber 1 comprises at least one opening 10, preferably two, through which the user introduces his hands M (Figure 3a). These openings 10 are arranged on the front face of the apparatus. They are advantageously elliptical in order to limit as much as possible the dispersions of the disinfecting product during its diffusion phase. The openings 10 may however be circular, rectangular, or any other form allowing the user to introduce his hands. Similarly, one can provide a single opening large enough for the user to enter both hands. Referring to FIGS. 1a and 1b, a step 22 (shown in dotted line) may be disposed at the bottom of the front face of the cell 2, so as to allow children or small persons to correctly introduce their hands. inside the chamber 1, through the openings 10.

Referring to Figures 2 and 3b, the bottom of the chamber 1 is inclined or funnel-shaped to facilitate the flow of condensates vaporized disinfection product to a low point 14. The latter is connected to a exhaust pipe 140 opening into a storage container 141 which can be a waterproof recycling can. The container 141 is disposed in the cell 2.

Referring more particularly to FIGS. 2, 3a, 3b and 3c, the device for vaporizing the disinfectant product consists of injectors 11a, 11b, 12a, 12b arranged so as to diffuse said product on the front and on the back of the hands. There are therefore injectors January 1, 12a placed in the upper part of the chamber 1, above the hands M and the injectors 1 1b, 12b placed in the lower part of said chamber, below said hands. In practice, each injector comprises a spray head producing a divergent spray. The design of these injectors is well known to those skilled in the art and will not be described here in more detail.

The disinfectant product used is, for example, a hydro-alcoholic liquid composition, a liquid composition based on sodium hypochlorite or povidone iodine, or comprising any other disinfecting agent that is suitable for those skilled in the art.

According to an advantageous characteristic of the invention, the diffusion of the disinfectant product is not only from the fingertips to the wrist, but also from the wrist to the end of the fingers. To do this, injectors 1 1 a, 1 1 b are arranged in the front part of the chamber 1 and oriented so as to diffuse the disinfectant to the rear part of said chamber. The diffusion is thus carried out from the wrist towards the end of the fingers (FIGS. 3a and 3c). Other injectors 12a, 12b are arranged in the rear part of the chamber 1 and oriented so as to diffuse the disinfectant to the front part of said chamber. The diffusion is thus carried out from the end of the fingers towards the wrist (FIGS. 3a and 3c). In this configuration, it is thus possible to effectively treat the entire surface of the hands. The injectors 11a, 11b, 12a, 12b are fixed on conduits 13 made of 316L stainless steel or medical plastic and shaped as an arch inside the chamber 1 (Figure 3c). Referring to Figure 2, the conduits 13 are connected to a pump 130 itself connected to a reservoir 131 containing the disinfectant. A reserve tank 132 may also be provided. Valves 1310, 1320 make it possible to select one of the reservoirs 131, 132. In practice, these reservoirs 131, 132 are removable tanks or containers of 5L to 20L arranged in the cell 2. The apparatus also incorporates a device to blow air into the chamber 1. Referring to the embodiment of Figures 2, 3a, 3b and 3c, this device consists of tubes 20a, 20b placed in the chamber 1, said tubes being connected to a wind tunnel independent 22 arranged in the cell 2. Each tube 20a, 20b has perforations 21 for generating an air flow inside the chamber 1. A first tube 20a is placed at the bottom of the chamber 1, in the part superior of the latter. The perforations 21 of this first tube are oriented so as to generate a flow of air substantially horizontal but slightly inclined towards the top of the hands M. A second tube 20b is placed at the entrance to the chamber 1, in the lower part of the the latter. The perforations of this second tube are oriented so as to generate a flow of air substantially horizontal but slightly inclined towards the underside of the hands M. The vaporization of the disinfectant and the air flow combines to mist, or nebulize, homogeneous said product inside the chamber 1.

The injectors 11a, 11b, 12a, 12b are preferably oriented in the chamber 1 so as to diffuse the disinfecting product in a spatial sector defined by a vertical plane and an inclined plane of 1 ° and 90 °, preferably 45.degree. ° and 90 ° to the axis of the supply air flow. Under these conditions, the disinfectant mixes perfectly with the air to form a micro-mist, mist or mist, homogeneous, up to more easily the entire surface of the hands M and especially the inside of the fingers. The characteristics of the micro-fog depend on the dimensions (mainly of the diameter) of the orifices of the injectors 11a, 11b, 12a, 12b and the injection pressure. In practice, the injectors 11a, 11b, 12a, 12b are mounted on ball joints so as to direct their diffusion.

According to the invention and as shown in Figure 3a, spacers 4 are placed in the chamber 1 so as to force the fingers to move away automatically when the user enters his hands M in said room, and allow a homogeneous distribution of the disinfectant product between the phalanges. The spacers 4 are directly disposed in the disinfection chamber 1. The interior of the disinfection chamber 1 is free of obstacles between the spacers 4 and the spray device, so that the disinfectant can be directly sprayed on the hands of the user. No obstacle, guide type described in US 3,220,424 (NELSON), therefore comes to surround the spacers 1 and hands. In practice, the spacers 4 are vertical rods disposed in the chamber 1, at the openings 10, the spacing between said rods defining the spacing of the fingers. These rods can be fixed by welding, screwing or otherwise, on horizontal bars placed transversely in the chamber 1 so as to connect together the two shorter sides of said chamber. The stems have for example a diameter of between 3 mm and 10 mm and are separated by a distance of between 2 cm and 4 cm. For each hand, three spacers may be sufficient: a first intended to be positioned between the little finger and the ring finger; a second intended to position itself between the annular and the middle fingers; a third intended to position itself between the middle finger and the index finger. A fourth spacer may be provided for positioning between the index finger and the thumb. But the thumb is already naturally removed from the index, this fourth retractor is not necessary. The spacers 4 can also directly integrated a device for spraying the disinfectant directly between the fingers. Referring to FIGS. 1a, 2, 3b and 3c, the chamber 1 is preferably provided with a window 100 allowing the user to visualize the position of his hands M in said chamber in order to correctly position his fingers between the spacers 4. The window 100 is arranged substantially in the middle of the hinged cover of the chamber 1. It may be oval, round, rectangular, etc.. In order to further facilitate the guidance of the hands M, a lighting device is disposed inside the chamber 1, the lighting being activated as long as the apparatus is switched on or while the user has his hands M positioned. in the chamber 1. For this purpose, sensors can be provided to detect the presence of hands M in the chamber 1 and actuate the lighting.

When the user introduces his hands M in the chamber 1 and his fingers are spaced apart, then all the asperities that are between the fingers are always accessible and can be disinfected by the disinfectant, which do not allow the devices known from the prior art. Since the area between the fingers is the area where a maximum of bacteria accumulates, the apparatus object of the invention is more effective than those of the prior art.

The chamber 1 is preferably provided with a device for blowing hot air into said chamber so as to dry the hands M after the disinfection phase. The apparatus thus combines the functions of disinfection and drying without the user having to rub his hands as is the case in most devices known in the prior art. Preferably, the device for blowing hot air is the same as that used to blow the air during the vaporization phase of the disinfectant product. Thus, the tubes 20a, 20b remain connected to the independent blower 200, but a heating resistor placed between said tubes and said blower is actuated to heat the blown air. The tubes 20a, 20b can be rotatably mounted about their longitudinal axis and automatically rotation in a reciprocating movement via an electric motor, so that the hot air flow sweeps the entire chamber 1 and improves the drying of the hands. Any other device for blowing hot equivalent air can be used by those skilled in the art.

The drying phase follows the disinfection phase, these two phases being controlled automatically by a programmable control unit. In practice, sensors are provided to detect the presence of the hands M in the chamber 1, the control unit then automatically triggering the disinfection-drying cycle. The control unit may consist of an electronic card, a programmable controller, one or more processors or microprocessors configured to execute one or more programs, subroutines, firmware or any other equivalent type of software, in order to manage the operation of the device. 'apparatus. Referring to Figures 1a and 1b, a screen E is provided on the apparatus to indicate to the user the active phases and treatment time remaining. This screen E may be provided with a touch screen or other keyboard and allowing the user to choose one of several programs stored in the memory area of the control unit.

Referring to Figures 1a, 1b and 3c, it is advantageous to provide vents 100 in the chamber 1 so as to evacuate any vapors liable to ignite during the drying phase. Indeed, the vaporization of the disinfectant being likely to generate alcohol vapors, there is a risk that they ignite when brought into contact with the hot air drying. The vents 1 10 are made in the upper part or on the sides of the chamber 1. In addition, these vents 1 10 allow to evacuate the hot air during the drying phase. To improve the extraction of flammable vapors and / or hot air, the vents 100 may be combined with a forced ventilation system. Similarly, it is advantageous to provide ventilation 120 in the cell 2 so as to ensure good air circulation in said cell for efficient cooling of the various pumps, motors and other electric heating resistors.

In the variant embodiment shown in FIGS. 6a and 6b, the device for blowing air consists of fans 40 placed in the chamber 1. In practice, these fans 40 are integrated in the hood of the apparatus and the flow The air they generate is substantially vertical, directed towards the bottom of the chamber 1. As described above, the device for vaporizing the disinfectant product consists of injectors 1 1a, 1 1b, 12a, 12b arranged so as to diffuse said product on the front and back of the hands. Preferably, two columns of injectors, respectively 1 1a-1 1b and 12a-12b, are arranged in the central axis of the chamber 1. In practice, the injectors 11a, 11b, 12a, 12b are mounted on vertical rods 130. Each injector comprises a double spray head each producing a divergent spray to each of the hands of the user. According to the invention, the diffusion of the disinfectant product is carried out in a spatial sector defined by a vertical plane and an inclined plane of 1 ° and 90 °, preferably 45 ° and 90 °, with respect to the axis of the flow of air blown. The injectors 11a, 11b, 12a, 12b are connected to the pump 130 which is itself connected to the tanks 131 and 132.

In the variant embodiment shown in FIGS. 7a and 7b, the device for blowing air consists of fans 400 placed in the chamber 1. In practice, these fans 400 are integrated in the hood of the apparatus and in the bottom of the chamber 1. The air flow generated by these fans 400 is substantially vertical, directed either downwards (for the upper fans) or upwards (for the lower fans). In this embodiment, the injectors 11a, 11b, 12a, 12b are mounted on supports directly attached to the axis of the fans 400. the invention, the diffusion of the disinfectant product is carried out in a spatial sector defined by a vertical plane and an inclined plane of 1 ° and 90 °, preferably 45 ° and 90 °, with respect to the axis of the air flow breath. In the variant embodiment shown in FIGS. 8a and 8b, the vaporization device is replaced by Xenon 500 vapor lamps, or any other type of lamp adapted for disinfecting the hands. These lamps 500 are arranged in the upper part and in the lower part of the chamber 1 so as to treat the front and back of the hands. The light pulsed by such lamps is an intense flash that causes the systematic bursting of membranes and nuclei of all bacteria and viruses, thus preventing their reproduction. In this case, the 500 lamps guarantee that no contaminated surface can escape the disinfection. The window 100 will eventually be treated so as to protect the user against any harmful effects associated with the pulsed light.

Claims

claims

Apparatus for disinfecting the hands of a user, said apparatus comprising:

- a disinfection chamber (1),

at least one opening (10) through which the user introduces his hands (M) into the disinfection chamber,

spacers (4) placed in the disinfection chamber (1) so that the fingers move apart when the user enters his hands into said chamber,

characterized by the fact that the disinfection chamber (1) is provided with a device for spraying a disinfectant in said chamber and a device for blowing air into said chamber, both said devices operating at the same time,

and in that the vaporization device consists of injectors (11a, 11b, 12a, 12b) for diffusing a disinfectant into the flow of blown air, the diffusion of the disinfectant product being carried out in a sector spatial defined by a vertical plane and an inclined plane of 1 ° and 90 °, preferably 45 ° and 90 °, relative to the axis of said air flow.

2. Apparatus according to one of the preceding claims, wherein the spacers (4) are vertical rods disposed in the disinfection chamber (1), the spacing between said rods defining the spacing of the fingers.

3. Apparatus according to one of the preceding claims, wherein the spacers (4) include a device for vaporizing the disinfectant directly between the fingers.

4. Apparatus according to one of the preceding claims, having two openings (10) elliptical by which the user introduces his hands (M) in the disinfection chamber (1).

5. Apparatus according to one of the preceding claims, wherein the vaporization device consists of injectors (1 1 a, 1 1 b, 12a, 12b) diffusing a disinfectant, said injectors being disposed in the disinfection chamber (1 ) so as to diffuse said product on the front and back of the hands (M), the diffusion being from the fingertips to the wrist and from the wrist to the end of the fingers.

6. Apparatus according to one of the preceding claims, wherein the disinfection chamber (1) is provided with a device for blowing hot air into said chamber so as to dry hands after the disinfection phase.

Apparatus according to claim 6, wherein the disinfection phase and the drying phase are automatically controlled by a programmable control unit.

8. Apparatus according to one of the preceding claims, wherein the disinfection chamber (1) is provided with a window (100) allowing the user to view the position of his hands (M) in said chamber.

9. Apparatus according to one of the preceding claims, wherein the bottom of the disinfection chamber (1) is inclined or funnel-shaped to facilitate the flow of condensates to a low point (14), the latter being connected to an exhaust duct (140) opening into a storage container (141).

10. Apparatus according to one of the preceding claims, wherein the disinfection chamber (1) comprises a liftable cover allowing, once raised, a direct access to the interior of said chamber.

1. Apparatus according to one of the preceding claims, wherein the disinfection chamber (1) comprises vents (1 10).

12. Apparatus according to one of the preceding claims, wherein the disinfection chamber (1) is fixed on a cell (2) in which are arranged the mechanical elements (130, 131, 132, 141, 220) to make it function.

13. Apparatus according to one of claims 1 to 1 1, comprising a cell (2) in which are arranged the mechanical elements (130, 131,

132, 141, 220) for operating the disinfection chamber (1), said cell and said chamber being juxtaposable and removable.

14. Apparatus according to one of the preceding claims, wherein the interior of the disinfection chamber (1) is free of obstacles between the spacers (4) and the spray device, so that the disinfectant product can be sprayed directly on the user's hands.

Apparatus according to claim 1, wherein the disinfection chamber (1) is provided with Xenon vapor lamps (500) for disinfecting hands.