MX2014010588A

MX2014010588A - Dispensing device for pressurized containers for the application of cryogenic coolant.

Info

Publication number: MX2014010588A
Application number: MX2014010588A
Authority: MX
Inventors: Luciano Ottanelli
Original assignee: Sixtem Life Srl
Priority date: 2012-03-09
Filing date: 2013-01-11
Publication date: 2014-11-25
Also published as: CA2865867A1; IN2014DN07581A; EP2822492A1; WO2013132357A1; CN104144653A; AU2013229154A1; RU2014135658A; ITPD20120074A1

Abstract

The invention is a dispensing device for pressurized containers (C) of coolants for cryotherapy, comprising an opening/closing valve (C1), a dispenser body (A), a valve-opening element (B) positioned between said dispenser body (A) and said container (C) and resting on said valve (C1), a closing cap or plug (T) suited to be positioned on and removably constrained to said dispenser body (A) and comprising one or more teeth or projections (T21) resting on said valve-opening element (B) in order to open the valve (C1), a tube or duct (A1) included in and integral with said dispenser body (A), at least one applicator pad or filter (S) being partially inserted in a removable manner in one end of the tube or duct (A1).

Description

DISPENSER DEVICE FOR PRESSURIZED CONTAINERS FOR THE APPLICATION OF CRYOGENIC REFRIGERANT DESCRIPTION This patent relates to medical devices for cryotherapy in the treatment of skin lesions and warts and in particular concerns a new dispensing device for pressurized containers for the application of cryogenic refrigerants.

Cryotherapy is a therapeutic procedure that uses fluids at extremely low temperatures for the localized treatment of skin lesions such as warts or other skin diseases more or less serious.

The controlled and precise application of the refrigerant in the lesion leads to the freezing of the intracellular water and the alteration of the proteins and enzymes causing, in the therapeutic application and the subsequent time of thawing, the dermo-epidermal detachment without damage to the dermis.

The advantages of cryotherapy are numerous. First of all, anesthesia of the area to be treated is usually not required and, in addition, in most cases scars do not appear and postoperative medications or complex treatments are not necessary.

One of the fluids that is used most in Cryotherapy is liquid nitrogen at a temperature of -196 ° C, while Freon, as a halogenated gas, has recently suffered restrictions as it is considered a contaminant.

The use of other fluids such as carbon dioxide or nitrous oxide is also known; however, they require more complex and expensive procedures and preparation, and precautions for their preservation.

Currently, the refrigerant for use in cryotherapy is stored in pressurized containers with atomizer type dispenser with a pressure valve to close / open.

The known packages also comprise a pipe or removable duct for the application, at the end of which a suitable applicator bearing or swab is placed to absorb and transport the refrigerant that leaves the container.

The bearing or applicator swab impregnated with the refrigerant is applied to the part to be treated, which, therefore, freezes causing the rupture of the cell membranes and the subsequent dermo-epidermal detachment.

In known containers, the tube or duct is applied to the dispenser of the container in a removable manner at the time of use, that is, the user must first apply the tube, then place the applicator bearing and finally administer and apply the fluid.

One of the drawbacks of the known devices is the fact that the uncontrolled release of the coolant can occur, for example, during the application or withdrawal of the tube, which results in a waste of material and, above all, the possibility of cause injuries and injuries to the user or the patient.

In addition, the operator must act quickly from the moment the refrigerant is administered until the moment of application, to avoid an excessive change in the temperature of the fluid, in comparison with the optimal values, thus reducing the effectiveness of the treatment.

By using the known packages, which comprise removable parts such as tubes and applicator bearings, the operation often becomes laborious and, therefore, the operator acts less quickly.

In addition, the operator must wait for the appropriate technical times to ensure that the applicator bearing is completely and sufficiently impregnated in the refrigerant before proceeding with the application.

To overcome the above drawbacks, a new type of supply device has been designed and constructed for pressurized containers for the application of cryogenic refrigerant gas in the therapeutic treatment of dermatological lesions.

The main objective of the present invention is that can be used with maximum safety for the operator and for the patient, because uncontrolled release of the coolant is blocked by an activating cap or cap, which causes the fluid to be supplied in a confined space to impregnate the bearing or applicator filter.

Another object of the present invention is that it can be used simply, quickly and immediately because the pipe or duct that distributes the refrigerant is integrated and integral with the body of the dispenser and, therefore, it is not necessary to assemble the tube in advance, which inevitably results in a loss of time and the possible uncontrolled release of the fluid.

Hygienic conditions are guaranteed even by the possibility of replacing the bearing or applicator filter partially housed inside the tube for each application.

Still another object of the present invention is to accelerate the application procedure thus also minimizing the variation of the temperature of the fluid before its application to the skin and thus increasing the efficiency of the cryotherapy, for the benefit of the patient.

One of the advantages of the present invention, which results from the use of bearings or applicator filters made of material with high refrigerant absorption and conduction capacity, consists of the possibility of obtaining immediate cooling of the application bearing.

Another advantage of the present invention is that the operator can identify with certainty and in a timely manner the moment in which the applicator bearing or filter is adequately impregnated with the refrigerant and, therefore, ready for immediate application.

An additional advantage is the fact that it is manufactured with materials that have adequate mechanical and chemical resistance to the substances that are used, as well as resistance to low temperatures.

These and other objectives, direct and complementary, are achieved by the new dispensing device for pressurized containers with a dispensing pressure valve, for the application of the cryogenic refrigerant gas in the cryotherapy treatment, comprising a dispenser body with an integrated tube and integral, in which the removable cylindrical applicator bearing or filter is partially inserted, suitable for absorbing and conducting the refrigerant and wherein a safety trigger cap or cap is suitable for closing the dispenser body, preventing the accidental release of the fluid and also to open the valve leading to the controlled supply of the fluid that, when transported through the tube, is immediately absorbed by the bearing or filter. The activating cap it comprises a cover suitable for closing the body of the dispenser to which it rigidly engages in a removable manner and an integral internal channel with the internal top part of the cover, suitable for housing the pipe or duct of the body of the dispenser.

The cylindrical wall of the inner duct of the lid comprises, at the lower edge, one or more teeth or projections suitable for insertion in the corresponding slots or through the holes in the body of the dispenser.

To distribute the fluid, the lid must be placed correctly in the container and invert the container orienting it with the lid down.

After acting on the lid with a force directed towards the body of the dispenser, the teeth or projections of the lid are inserted totally or partially into the grooves and rest on an element, hereinafter called valve opening element, placed between the body of the dispenser and the upper edge of the container, connected to the valve of the container.

The pressure applied to the opening element of the valve, with the container inverted, causes the valve to open and, as a result of the gravity force in addition to the pressure of the fluid in the pressurized container, results in the flow of the fluid through the pipe or pipeline integral with the body of the dispenser.

The bearing or filter partially inserted into the tube absorbs the fluid and draws it to the top, impregnating it completely in the fluid.

Therefore, thanks to the combination of the forces of gravity and the pressure inside the container, the fluid flows out more quickly and thus considerably reducing the time necessary for complete impregnation of the bearing or filter.

As a result, the ideal application temperature can be reached in a shorter time.

To maximize the absorption and conduction capacity of the refrigerant, it is expected that the bearing or filter is made of cellulose or open cell foam, preferably polyurethane S518.

The internal duct of the lid, which contains the tube completely, keeps the bearing or filter inserted in the correct position preventing it from being expelled due to the gas pressure.

Because the fluid is only supplied with the inverted container and the cap facing down, there is no risk of uncontrolled release of any excess fluid not retained by the bearing or filter.

In fact, any such excess fluid builds up inside the inverted lid, where it evaporates gradually without spilling outwards.

This lid or plug is made of plastic material, which has suitable characteristics of mechanical, chemical and thermal resistance and is preferably transparent, so that the user who has activated the lid by causing the fluid to be distributed, can see from the outside if the Bearing is impregnated and if it is found then ready to be used.

In fact, the fluid flow and its absorption by the bearing cause the deposition of condensate on the inner surface of the cap close to the bearing itself, thus making it evident that the bearing is impregnated and ready to be used.

In the lid and / or in the body of the dispenser and / or in the package there are projections and / or slits for the alignment and proper positioning of the lid.

In particular, the lid can be aligned and placed in the body of the dispenser in two different positions. In the "CLOSED" position the lid inserted in the body of the dispenser is rotated so that the teeth do not fit in the corresponding slots formed on the body of the dispenser and, therefore, it is not possible to activate the fluid distribution.

In the "OPEN" position activated, the lid is rotated for example 180 ° with respect to the "CLOSED" position, so - fi ¬ that the teeth align with the grooves and, therefore, the user can by pressing the lid towards the container, inserting the teeth into the grooves and acting on the opening element of the valve causing the fluid to be distributed.

To guide the operator in the proper alignment of the lid in the closed or activated position, it is provided that the two correct positions are indicated on the lid itself, by means of cuts, symbols or the like.

The characteristics of the new fluid dispensing device will be better clarified by the following description with reference to the accompanying drawings, by way of non-limiting example.

BRIEF DESCRIPTION OF THE DRAWINGS In FIGS. 1-Id the body of the dispenser (A) is shown.

In figures 2a-2c the opening element of the valve (B) is shown.

In Figure 3 the valve (Cl) of the pressurized container (C) is shown.

Figure 4a shows a three-dimensional view of the activating cap (T), while Figures 4b-4e show, respectively, a side view, a sectional view, a bottom view and a top view.

Figures 5a-5b show schematically the operation of the activating cover (T), shown in the "CLOSED" position in Figure 5a and in the "OPEN" position activated in Figure 5b.

Figures 5c-5e schematically show the cover (A) in section, inserted in the body of the dispenser (A) in the different positions of closed and activated.

DETAILED DESCRIPTION OF THE INVENTION The new dispensing device is integrally applicable in pressurized containers (C) with a pressure valve (Cl) of atomizer type and comprises a body of the dispenser (A) suitable to be fixed to the container (C).

The body of the dispenser (A) comprises a cup-shaped or convex part (A2) suitable for containing the upper end of the container and at least one tube or duct (Al) integrated and integral with the cup-shaped part (A2) , for the flow of refrigerant stored in the container (C).

Said tube (Al) is internally formed or comprises projections (All) to support at least one cylindrical bearing or filter (S) partially inserted therein and shown in Figures 5c-5e.

In the preferred embodiment, to ensure effective absorption and conduction of the coolant, the cylindrical bearing or filter (S) is made of polyurethane S518, with a diameter of about 7 mm and length of 18 mm.

Between the body of the dispenser (A) and the container (C) there is an opening element of the fixed and interposed valve (B) shown between Figures 2a-2c.

The new dispensing device also comprises at least one cap or activating cap (T), which is shown schematically in Figures 4a-4e, comprising a cover (TI) suitable for closing the body of the dispenser (A) to which it rigidly engages removably and an inner channel (T2), integral with the upper part of the lid (T), suitable to house the tube (Al) of the body of the dispenser (A).

The cylindrical wall of said inner channel (T2) of the lid (T) comprises, at the lower edge, one or more teeth or projections (T21) suitable for insertion in the corresponding slots or through holes (A21) formed in the part with cup shape (A2) of the body of the dispenser (A), so as to rest on the part (B3) of the opening element of the valve (B), causing the opening of the valve (Cl) of the container (C), which is shown in detail in Figure 3 and, thus, the fluid supply.

The fluid can only be supplied with the container (C) inverted, that is to say with the cover (T) oriented downwards and therefore the supply occurs, after the activation of the lid (T), as a result of the force of gravity and the pressure inside the container (C).

Fluid flow and its absorption by the bearing (S) causes deposition of the condensate on the inner surface of the lid (T), near the upper part (T22) next to the bearing (S) itself and makes it evident to the user that the bearing is impregnated.

It is also provided that on the inner surface of the cover (TI) of the cover (T) there are one or more projections (T3), suitable for insertion in the corresponding grooves (A3) formed in the body of the dispenser (A), which they guide the alignment and correct positioning of the lid (T).

In particular, the lid can be aligned and placed on the body of the dispenser in two different positions. In the "CLOSED" position (Figures 5a, 5c) the lid (T) inserted in the body of the dispenser is rotated so that the teeth (T21) do not line up with the corresponding slots (A21) formed in the body of the dispenser ( A) and, therefore, can not be inserted to act on said valve opening element (B).

In this case, the fluid is prevented from being distributed. Therefore, when the lid (T) is in the "CLOSED" position, the device can not be activated accidentally, thus preventing inappropriate use by children or people in general. Furthermore, in the "CLOSED" position, the lid (T) is nevertheless attached to the dispenser body (A) and therefore also has a hygienic protection function before and after after its use. That is, it protects the device from dust, germs and contaminants, ensuring adequate sanitary conditions until the next use.

In the "OPEN" position (Figures 5b, 5e), the lid (T) is rotated 180 ° with respect to the "CLOSED" position, so that the teeth (21) are aligned correspondingly with the grooves (A21).

When direct force is exerted on the cover (T) towards the container (C), the teeth (T21) slide towards the grooves (A21) and when resting on the opening element of the valve (B), open the valve ( Cl) and the fluid is distributed.

To guide the operator to the proper alignment of the lid in the closed / activated position, there is an indication on the lid (T) and on the body of the dispenser A) with respect to the proper alignment of the lid (T) to locate the positions sealing "CLOSED" and activated "OPEN".

In particular, it is provided that on the lid (T) there is an arrow and / or an indicator mark (T4) of the "OPEN" position and an arrow and / or an indicator mark (T5) of the "CLOSED" position, for align with the slits (A3) indicated on the body of the dispenser (A).

To open the valve of the container and thus make the fluid flow, it is necessary to place the lid (T) in the "OPEN" position activated and to orient the container with the lid oriented down, so that the fluid also flows out of the container due to the effect of the force of gravity.

To guide the user to the correct positioning of the container to distribute the fluid and facilitate the activation of the lid (T), the lid (T) comprises in its upper part (T22) one or more projections, protrusions or edges in general (T61) , arranged for example along a circumference with the center coinciding with said upper part (T22) of the lid (T), suitable for defining a substantially flat surface (T62) for the stable support of the lid (T) in the flat surface.

In this way, after successful activation of the lid (T) to distribute the fluid, the package can be left in the inverted position, with the lid (T) facing down to facilitate complete impregnation of the bearing or filter (S).

Therefore, with reference to the foregoing description and the accompanying drawings, the following claims are made.

Claims

1. A dispensing device for pressurized refrigerant containers for cryotherapy, comprising at least one manual opening / closing pressure valve, characterized in that it comprises: • at least one dispenser body suitable for permanently attaching to said container; • at least one element for opening the valve placed between said body of the dispenser and said container and resting on said valve; • at least one cap or closure cap suitable for removably and fixedly positioned to said dispenser body and comprising one or more teeth or projections that rest on said valve opening element to cause the valve to open; • at least one tube or duct included and integral with said dispenser body, at one end of which at least one bearing or applicator filter is removably inserted. characterized in that said lid, on its upper part opposite said container, comprises one or more projections, projections or protrusions that define in general a substantially flat surface on which the lid can rest firmly and where with the container turned downwards, a force exerted on said cover towards the The body of the dispenser causes said teeth or projections of the cap to press said opening element of the valve thereby causing it to open and allow fluid to flow out of the container due to the force of gravity and / or the pressure present in the container. pressurized container.

2. The dispensing device according to claim 1, characterized in that said cover comprises an outer cover that surrounds and encloses said dispenser body and at least one internal channel, integral with the upper part of the cover, suitable for housing said tube and in where the upper part of said lid is close to said bearing or filter, partially inserted in said tube, which is kept in the correct position while the refrigerant is distributed.

3. The dispensing device according to claims 1, 2, characterized in that said lid is made completely or partially of a transparent plastic material that makes it possible to see, from the outside, the condensate that is formed when the refrigerant is distributed.

4. The dispensing device according to the preceding claims, characterized in that said valve opening element comprises at least one channel communicating with the opening of said valve, inserted at least partially into said tube and suitable for transporting said distributed refrigerant and making arrives to said bearing partially inserted in said tube.

5. The dispensing device according to the preceding claims, characterized in that said bearing or filter are made of cellulose or open cell foam or other material with high capacity to absorb and transport the refrigerant.

6. The dispensing device according to the preceding claims, characterized in that said cap and / or said dispenser body and / or said container are provided with one or more projections and / or slits for the guided application with the correct alignment of said cap to said dispenser body.

7. The dispensing device according to the preceding claims, characterized in that said dispenser body comprises one or more slots or through holes for the insertion of one or more of said teeth or projections present on the lower edge of the internal channel of said cover and in where one or more of said teeth, inserted through said grooves, rest on said opening element of the valve to cause the valve to open and the fluid to be distributed.

8. The dispensing device according to the preceding claims, characterized in that said projections and / or slits allow said cover to be applied to said dispenser body and be aligned in the position "OPEN", so that said teeth align with said grooves and can thus be inserted in them when pressing the lid toward the container.

The dispensing device according to the preceding claims, characterized in that said projections and / or slits make it possible to guide said cover towards said dispenser body, aligning it in the "CLOSED" position, rotated at a given angle with respect to said position. "OPEN", so that said teeth in the "CLOSED" position do not align with said grooves and therefore can not be inserted in them and where in said closed position said lid is restricted to said dispenser body in order to protect it

10. The dispensing device according to the preceding claims, characterized in that said lid and / or said body of the dispenser and / or said container are provided with one or more cuts or symbols or reference marks for the correct alignment and arrangement of the lid in the position "CLOSED" or "OPEN".