WO2010055179A1

WO2010055179A1 - Toothbrush containing toothpaste in aerosol form within a pressurised cartridge

Info

Publication number: WO2010055179A1
Application number: PCT/ES2009/070071
Authority: WO
Inventors: Jose Santiago Rolla
Original assignee: Elastomeric Systems, S.L.
Priority date: 2008-11-11
Filing date: 2009-03-24
Publication date: 2010-05-20
Also published as: AR069258A1

Abstract

Toothbrush with toothpaste in aerosol form in a pressurised cartridge (4), containing multiple doses, that has a longitudinally lengthened brush (2) with a front end that is wider and has a rectangular cross section with rounded edges, on one of the larger surfaces of which are installed the bristles (8); a hollow handle (3), containing the pressurised cartridge (4), in which the back end of the brush, has fixing and binding means (13-14-32) with means of equal size and matching cavities, on the front wall of the handle; the outer surface of said handle having at least one annular rim for applying manual pressure; where the cartridge is projected towards the end of the brush, by applying manual pressure on its base, moving it a sufficient distance to cause the end of the duct of its opening valve in a closed condition (24) to butt against the inner edge of the orifice (11) of the end of the brush such that said valve opens (25) and by means of the pressure inside the cartridge, it doses and propels the toothpaste towards the outside of the brush.

Description

DESCRIPTION

DENTAL BRUSH CONTAINING DENTIRRIC IN THE FORM OF AEROSOL WITHIN A PRESSURIZED CARTRIDGE

This invention finds application in the area of care and hygiene of dental health and gums, based mainly on brushing and cleaning with dentifrices, significantly improving and simplifying the current world technology of toothbrushes and packaging of dentifrice in a way that makes it possible to effect Daily tooth brushing in a hygienic, fast and comfortable way. PREVIOUS TECHNIQUE

It has been known for many years, the slow and annoying task of squeezing the uncomfortable knob of toothpaste several times a day

Regularly distributed inside, to be placed on the bristles of the toothbrush. In the current era of sophisticated technology and hectic life it is absurd to waste time by continuing to perform dental cleaning in the primitive, slow and uncomfortable way of use for more than a century. Technological advances have only been made separately in toothbrushes and in the formulation and packaging of toothpastes inside knobs, but so far no efficient combination has been made between them, for their simultaneous and practical use.

To try to make this individual need of almost all individuals more practical, comfortable and quick, for many years now we have tried to make toothbrushes with toothpaste incorporated inside, as the documents show: CA 2,246,659; DE10018427 A1; LT20010000076 20010716; JP2003169716; US6481910 B1; DE10200696 A1; JP2009-169716; GR98100378; FR2 809 296; ES 2 144 934: EP 1 038 469 A3; EP 0 409 594 A1; DE19953444; DE19951912; DE 199 41 256 A1; DE10052512; WO 01/36217 A1; US 2001/0002228 A1; US 2003/0215282 A1; US 3,936,200; US 4,023,580; US 4,030,845; US 4,039,261; US 4,201,400; US 4,588,089; US 4,615,635; US 4,622,984; US 4,844,641; US 4,865,481; US 4,886,389; US 4,963,046; US 5,062,728; US 5,087,143; US 5,144,712; US

REPLACEMENT SHEET (Rule 26) 5,242,233; US 5,403,105; US 5,439,014; US 5,476,333; US 5,476,334; US 5,584,593; US 5,599,126; US 5,640,951; US 5836,769; US 5,888,010; US 5,915,868; US 5,927,889; US 6,056,466; US 6,238,118 B1; US 6,213,662 B1; US 6,257,791 B1; US 6,386,779 B1; US 6,386,783 B1; US 6,533485B1; US 6,536,979 B1; US 6,609,848 B1; US 6,672,783 B1; US 6,095,710; WO 2007/049298 A1; GB 2,399,005 A; GB 2 430 146 A; CA 2343039 A1; DE 19744223 A1; GB 1470269 A; GB 2377883 A; GB 2399005 ³ ; GB 2430146 A; US 593159 A1; US 2006133885 A1; US 2006 210352 A1; WO 20070461 14 A1; WO 2007049298 A1; and many more, all of them of similar characteristics, being common to all of them without exception, having an inner duct along the brush that extends from exit holes between the bristles towards its rear part in which the deposit of toothpaste, which they try to mobilize by means of complicated manual mechanisms consisting of pistons, pistons, mechanical pumps, valve mechanisms, springs, seals, seals, washers, protrusions for tightening and actuating, various and complicated mechanisms to circulate the dentifrice towards the outer hole of the end of the toothbrush where it has the bristles, the complicated technology of some systems, the elementary and impractical use of others, the general difficulty of its operations and the probable increase of its cost, are the causes for which none of them has been put into practice in a massive and widespread way. The present invention can be applied in brushes whose movements are carried out manually, or in brushes that move the end containing the bristles by electrically operated mechanisms. The fluence of the toothpaste through the interior of the brush is carried out by means of the already known internal duct that flows into at least one hole between the bristles, which at its rear end ends in a simple telescopic connection with the tubular end of the valve of a pressurized cartridge, which is similar to those used in medical aerosols, especially for medication of the respiratory system, which exactly doses the dentifrice and propels it through said inner duct along the brush, with the simple movement of exerting pressure on the end of the cartridge, directly or by means of the pressure on the lid that close the brush handle; or adjacent to the cartridge that in this case constitutes the handle, dosing and flowing the dentifrice instantaneously: This invention provides the great advantage of being able to do it with one hand, being also immediately and practical use and low cost, missing features in almost all prior art documents consulted.

SUMMARY OF THE INVENTION

The present invention relates to a toothbrush (1), which contains multiple doses of dentifrice in the form of an aerosol within a disposable pressurized metering cartridge (4), from which lower end protrudes the rigid conduit of the opening valve that doses the toothpaste, which is in a closed state (24). The cartridge (4) is preferably located inside a hollow handle (3), with a cylindrical cavity located at the rear end of its longitudinal body (2). This toothbrush can be manufactured in a single structurally integral part (1), or in two main individual parts, one that constitutes the body of the brush (2) and the other its handle (3). This toothbrush has between its bristles (8), at least one exit hole (7) of the toothpaste which is continued inside the toothbrush in a prolonged duct along its entire length (9), which ends in the toothbrushes of manual movement, in a hole (12) with a short cylindrical widening (10) adjacent in the center of the end edge, for the embedding and housing of the valve in the closed state (24); being able to end eccentrically (9 ') in the brushes of electromechanical movement of their bristles (49). The rear end of the brush has on its outer surface connection and fixing means (13-14-32) to a conduit in the anterior wall of the hollow handle (13'- 14 '), where it is connected and fixed, projecting inside of said handle (3) in a short segment, in the central part of whose end the longitudinal conduit ends in an outer hole (12) in whose cylindrical widening (10) fits and the protruding end of the opening valve (24) remains housed. ) in a closed state, of the cartridge (4), which when sliding by manual pressure exerted on its bottom, stops at the step interior (1 1) that limits the segment of greater diameter (10) than when pressed, opens the valve (25), dosing and making the dentifrice flow through the inner conduit of the brush until its exit between the bristles. The hollow handle (3) can have at least one structural annular projection on its outer surface (6), for manual apprehension, or it can be smooth and this annual flange is constituted by a tight elastomeric ring (23), constituting a flange that has to be moved to adapt it to the user's hand. Said handle has on its inner surface fine longitudinal ribs (18) regularly scattered to position and facilitate the sliding of the cartridge, which have at the end of the handle (3), an oblique edge (19) for embouching the cartridge. At its rear edge it has two round-shaped recesses (Fig. 7-3 '), which allow the fingers to be inserted to remove the empty cartridge. In a manufacturing form, the rear end of the cartridge (4), protrudes from the open end of the handle (Fig. 4), so that when it is learned by its projections between two of the user's fingers and by the flexion of the thumb and the palm of the same hand, direct pressure is exerted on its end, thereby producing the sliding of the cartridge that presses the end of the control conduit of the valve (24) in the closed position, which is open (25). In other manufacturing variants the cartridge is completely inside the handle (Fig. 1; Fig. 6; Fig. 8), being pressed directly by manual pressure on a cover (5-20), which contacted the bottom of the cartridge activating the opening of the sealing valve in the open position (25); when this cover (20) is pressed which slides on the surface of the handle that has retention projections on its edge and on the surface of the handle (21), its recoil being carried out to the closed position (24), by the action of the inner spring of the valve (27). In another manufacturing variant the handle of the brush Io constitutes the pressurized cartridge (Fig. 9), which by means of an intermediate piece (29), is connected to the toothbrush (2), which has a structural shape that allows its manual compression and its sliding and subsequent recoil, which activates the opening of the sealing valve (25). In these and in any other manufacturing variant, the operating mechanics are similar. For its perfect fluence inside the toothbrush, the toothpaste must be of physical consistency of foam (34), soft paste (35), cream (36) or gel (37), containing all the necessary pharmacological compounds to maintain and preserve The health of the teeth and gums, this creep can be optimized through the placement inside the longitudinal duct of a tubular body of non-stick material such as silicone or fluorocarbonate (Teflon) polymers (51). To assist with the toothpaste in the action of removal of mineral deposits in the dental pieces, elastic sheets of elongated cross section (38) are provided that contain in their structure fine granules of abrasive substances (39), which are located between the bristles , oriented transversely to the longitudinal direction, and on the back.

OBJECTIVES AND ADVANTAGES OF THE INVENTION

For the specified purposes, the toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge (4), for dosing and propulsion abroad, provided for in this invention, comprises:

- a longitudinally elongated body of preferably cross-sectioned rectangular section with rounded angles;

- its distal end is wider transversely, on one of whose surfaces, flexible bristles (8) are implanted, which will be in contact with the teeth and gums;

- between these bristles is, at least one exit hole (7) of the toothpaste, which is continued in an inner duct (9), for its entire length:

- Between the bristles and on the opposite surface, a plurality of elastomeric sheets (38) are provided, which contain inside its constituent structure, powder of abrasive substances (39) to assist with the action of the dentifrice in the removal of deposits minerals in teeth; - after the bristles, the body of the brush is extended in a sector of equal or smaller dimensions of its diameters that constitutes the neck which is continued in a sector of equal or larger diameters that forms the body, which ends in a central segment preferably cylindrical that has on its outer surface means (13-14) that allow its connection and fixing to the hollow handle (3) or (32), to an intermediate piece (29) of linking direct with the closing edge (30 ') of the cartridge (4); - inside this end the end of the longitudinal inner duct is preferably continued through its entrance, terminated in a hole (12) with a slight cylindrical increase in its diameter (10) in which the protruding end of the valve is connected tightness in closed state (24) which is preceded by a short sector of conical shape (50); in the inner step formed (11), it stops, when the cartridge (4) is moved the tubular end in a closed state (24), being opened (25), propelling an exact dose of dentifrice;

- The one that is manually operated by gripping the handle by its outer projections, compressing and pressing the cartridge end for its sliding.

One of the advantages of this invention is that the brush is provided with toothpaste using only one hand, being fixed by the projections of the mantle (6-23-23 ") held between two of the fingers, simultaneously pressing the end of the cartridge by by means of the flexion of the thumb and the palm of the same hand directly or by means of the lid (5-20) that closes the handle, the toothpaste being dosed and propelled leaving the brush outside instantly.

Another advantage is that it can be used in fully-manually operated toothbrushes (1) and also in those that have movement in their bristles (46) by means of electromechanical devices powered by batteries.

Another advantage of this invention is that it is simple and economical to manufacture.

Another advantage of this invention allows brushing and dental hygiene immediately and practically without having to compress the dentifrice knob. Another advantage is that the handling of the toothbrush with one hand is of great importance to be used by children and people with disabilities in one of its upper limbs.

Another advantage is that the perfect sterility and hygiene of the toothpaste is maintained by never being in contact with the air or with the bristles of other people who can contaminate it, as is the case with conventional toothbrushes and toothpastes, in which The same toothpaste knob is used by each member of the family group because by means of this invention each user will have their individual toothbrush with hermetically placed dentifrice inside.

Another advantage is that the toothpaste can be manufactured in the form of foam (34), soft paste (35), cream (36) or gel (37), whose formulation and consistency for easy propulsion will be according to the characteristics of each brush. In addition to produce an auxiliary abrasive action that removes mineral deposits in the teeth, it is provided that the brush has between the bristles and on the surface of its back, thin elastomeric sheets (38), containing particles (39) of silica or others abrasive powders, of different granulometries and degrees of concentration for different types of toothbrushes of precise dental indications.

Being manufactured in foam, which displaces more volume through the pores of gases it contains, decreases its specific weight, thus generating greater dentifrice economy.

Another advantage is that this new fast and practical way of cleaning and dental hygiene is of great importance to carry out mass advertising by promoting the product commercially increasing sales volumes, and also to create mass awareness through advertising campaigns on the importance for The health of good hygiene and dental and gum care.

BRIEF DESCRIPTION OF THE DRAWINGS For greater clarity and compression of the objects of the invention, they are illustrated with several figures, in which it has been represented in one of the preferred embodiments, all by way of illustrative, non-limiting example showing: Figure 1: View in middle longitudinal cut of the toothbrush with its hollow handle made in one piece, inside which is the pressurized cartridge.

Figure 2A: View in middle longitudinal section of the end of the toothbrush with bonding means consisting of threaded surfaces, and of the handle with its internal thread connection system;

Figure 2B: View in mid-longitudinal section of the two fixed ends; Figure 2C: View of the end of the brush with its end of conical connection and the handle with its hollow truncated cone connection system;

Figure 2D: Detailed view of the end of the brush showing at its end a locking flange;

Figure 2E: View in mid-longitudinal section of both parts connected to each other.

Figure 3A: View in longitudinal section of the brush handle, showing the opening of the inner duct between the bristles and its extension in the inner duct;

Figure 3B: Panoramic view showing the opening of a single hole or more than one exit hole.

Figure 4A: Longitudinal section view of the brush handle showing the pressurized cartridge that exceeds the length of the handle; Figure 4B: Cross-sectional view showing the inner longitudinal flanges of the handle, with the cartridge inside.

Figure 5A: Sectional view of the brush handle containing the pressurized toothpaste cartridge protruding therefrom;

Figure 5B: Cross-sectional view of the handle with the cartridge and the lid with the protruding end of the valve in the closed state;

Figure 6A: Panoramic view of the brush handle showing annular projections of manual retention and another variant of lid manufacturing; Figure 6B: Detail view of the cut (Y) showing the retention flange of the handle edge, and of the edge of the lid with its emboque surfaces;

Figure 6C: Exterior view of a variety of lid; Figure 7A: Panoramic view showing the handle with an annular flange;

Figure 7B: Panoramic view of the handle showing an ornamental cover.

Figure 8A: View in partial longitudinal section showing the handle with the cartridge inside with the protruding end of its closed status valve; Figure 8B: Partial longitudinal section view of the handle with the cartridge displaced inside with the end of its valve in the open state;

Figure 8C: Detailed view in longitudinal middle section showing the dosing system of the cartridge valve in the closed state;

Figure 8D: Detailed view in medium longitudinal section, showing the dosing system of the pressurized cartridge valve in the open state.

Figure 9A: Panoramic view showing the end of the brush with fixing means;

Figure 9B: Panoramic view showing an intermediate linkage piece; Figure 9C: Panoramic view showing the pressurized cartridge that forms the handle;

Figure 9D: Panoramic view showing an elastomeric clamping ring;

Figure 9E: Previous panoramic view showing details of the intermediate piece;

Figure 9F: Lateral panoramic view of the intermediate piece;

Figure 9G: Lateral panoramic view of the intermediate piece in activated state, with its approximate ends;

Figure 10: Panoramic view in partial longitudinal section, showing the handle of the brush, the intermediate piece and the pressurized cartridge, connected to each other; Figure 1 1 A: Panoramic view showing the shape that the toothpaste adopts when leaving foam form;

Figure 1 1 B: Panoramic view showing the shape that the toothpaste adopts as a cream; Figure 1 1 C: Panoramic view showing the shape that the toothpaste takes when it forms soft paste;

Figure 1 1 D: Panoramic view showing the shape that the toothpaste adopts when leaving gel form;

Figure 12A: Detailed view of the end with bristles, showing between them and on its back elastomeric sheets contained in its interior structure and surface abrasive powders of different grain size and concentration, for the removal of mineral deposits on the surface of the teeth;

Figure 12B: Detailed view of the end with bristles with a variant embodiment of the elastomeric sheets; Figure 12C: Detailed view of the end with bristles with a variant embodiment of the elastomeric sheets;

Figure 12D: Detailed view of the end with bristles with a variant embodiment of the elastomeric sheets;

Figure 13: Panoramic view in section, showing the brush with the cartridge in its handle, adapted to a brush with electromechanical movement of its bristles; Y

Figure 14: Sectional view in detail, showing the longitudinal conduit of the brush that contains a nonstick tube inside.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown in the figures, it can be seen that the toothbrush provided in the present invention can be manufactured in integral form (1) or in two main individual parts connected to each other, one of which constitutes the body of the brush (2), and The other is the hollow handle (3) that contains inside the pressurized aerosol dentifrice cartridge (4), the elongated brush is in most of its length, of cross section circular or preferably rectangular rounded angles, at one of whose ends of greater transverse diameter, the bristles (8) are implanted, among which is a plurality of elastic sheets (38), within whose constitutive structure there are dispersed abrasive substances in concentration and granulometry (39), variable according to the pharmacological formation of the dentifrice, in which it is located in the middle part of its width, at least one exit hole of the dentifrice (7), which is continued in an inner duct ( 9) along the entire length of the brush, ending at its end preferably cylindrical which has on its outer surface coupling means (13-14-32) and locked with the handle (3), in the center of which the inner duct (9) ending at the same level in a hole (12), of circular section, with a slight increase in its cylindrical diameter (10) inside. The hollow handle (3), preferably cylindrical in shape, has on its inner surface a plurality of tiny longitudinal flanges (18) uniformly spaced between which the cartridge is contained, on whose edges it slides, these flanges begin at the end of the edge brush obliques (19), whose diameter is greater in the periphery decreasing towards the center of the handle, so that they form a means of embouching the cartridge. The handle has at its outer surface, near its upper end, at least one structural projection (6), preferably annular to be grasped, can also be of smooth surface, and this projection is constituted by an adjustable elastomeric ring (23), which can be moved to adapt it to the user's hand. In the center of the wall of its lower end it has an outer projection with a central duct with locking means on its inner surface (13'-14 '); through this conduit the end of the brush (2), is introduced in a brief segment inside the handle, ending in a hole (12), in whose inner conduit (10) the end is inserted, fitted and remains housed. of the valve duct in the closed state (24) protruding from the cartridge Ia which, when activated by exerting manual pressure on its end, by means of two of the fingers that learn it in its outer projection, with the thumb and palm of the same hand, that when being flexed, press the cartridge (3), slides inwards when making stop the end of the conduit of the valve (24) in the annular step (11) of the interior of the end of the longitudinal conduit of the brush, being opened (25), by the sliding of the entrance hole of the aerosol (26); closing the rear end in the position (26 ") the cell that determines the dose; dosing and propelling the toothpaste inside the brush, until it flows through the outlet orifice (7). The closing of the valve is carried out by the spring (27) that produces its recoil, bringing the exit orifice to the closed position (26).

In another form of manufacture, the cartridge is contained entirely inside the hollow handle (Fig. 1-6-8), being activated by pressing its rear end in the same way as before but indirectly by means of the manual pressure exerted on the lid. (5), which closes the handle (3), which has a central projection (5 ') inside it that faces the bottom of the cartridge.

In another manufacturing variant, which is advantageous because of its great simplicity and low manufacturing cost, the body of the brush is directly connected to the pressurized metering cartridge (4) that constitutes the handle of the brush, which may contain a greater amount of dose. This linking and connection must allow a certain degree of sliding of the cartridge to activate the valve that doses and propel the dentifrice which is possible by means of the interposition of a piece (29) at one of whose ends the brush handle is inserted and retained. (2) with locking systems (32-32 ') with a structural shape in the middle part of its body (31 -31'), which allows the approach of its ends and the sliding of the cartridge with the passage of the valve conduit from its inactive closed position (24), to its activated activated position (25). The cartridge is easily learned manually by means of the use of an elastomeric ring (23), which fits tightly on its outer surface, and can be displaced on the handle to adapt it to the user's hand.

In another variant of manufacturing this toothbrush, it can be combined with electromechanical mechanisms that mobilize the bristles (Fig. 13), by means of a flexible external linking duct (46).

SET OPERATION As shown in the figures, the toothbrush described in this invention, in any of its manufacturing forms, is always ready to operate immediately in response to the manual pressure on the rear end of the pressurized cartridge (4). In a manufacturing method, the toothbrush body (2) is continued in a hollow cylindrical handle (3) that has projections for its apprehension on its outer surface, within which the cartridge is contained, having at its lower end a wall laminate with a central duct (13-14), through which the end of the brush body enters and locks with different manufacturing variants: forming an integral part thereof (1), connected by threading surfaces (13), being in shape Conical trunk (14) with a locking flange at its end (17), by simple manual pressure, or by means of an intermediate piece (29), which links the brush to the handle, or directly to the pressurized cartridge. The inner duct of the brush (9), extends through the inside of the handle to its end, having a circular hole (12) in it which has a slight cylindrical widening (10) inside which fits pressure, is housed and stops in the inner annular step formed (1 1), when it is displaced, the end of the opening duct of the valve that protrudes from the front end of the cartridge, in a closed state (24), which when being Open (25) dose and propel the toothpaste through the inner duct to the outlet hole between the bristles. This valve in the closed state (24) is activated (25), manually by the sliding of the cartridge caused by the simple direct manual pressure carried out on its bottom or on its back cover. In one form of manufacture, the bottom of the cartridge exceeds the length of the hollow handle that contains it (Fig. 4 A), so that it is activated by direct manual pressure on its end, the annular projection of the handle between two of the fingers of the user and with the thumb and palm of the same hand when flexing them, press the bottom of the cartridge, thus opening the sealing valve.

In another form of manufacture the cartridge is contained entirely within the handle (Fig. 1-Fig. 6-Fig. 8), the manual pressure being applied on its end, on the cover (5), which closes the handle that has in the center of its inner surface, a projection (5 ') that contacts the bottom of the cartridge. Manual operation is carried out in the same way as in the previous manufacturing variant. In another manufacturing variant, the pressurized cartridge constitutes the handle of the toothbrush (Fig. 9; Fig. 10), being connected to the body of the brush through an intermediate piece (29), the user takes with two of his fingers Ia annular projection near the end of the brush body (33), and with the thumb and palm of the same hand, the valve end of the cartridge, by means of an elastomeric ring (23), fixed under pressure on its outer surface and effecting its flexion approaches the fixed walls, so that the protruding end of the valve in the closed state (24), slides inside the cartridge butting in the inner flange (1 1), of the end of the inner conduit that houses the valve (10 ), being opened (25), dosing and propelling the toothpaste through the interior of the inner duct, to exit through its hole (7) between the bristles.

Undoubtedly, since the present invention is carried out in practice, modifications may be introduced in what certain construction and form details refer to, without implying departing from the fundamental principles that are clearly substantiated in the clauses that follow continuation.

Claims

1) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized cartridge (4), containing multiple doses, which in response to manual pressure exerted on said cartridge, produces its sliding by exerting pressure on the protruding end of the closed airtight valve (24), which stops inside the brush being opened (25), dosing and propelling to the outside of the brush a dose of the toothpaste contained, which is intended for dental cleaning and oral hygiene and gums; comprising: a longitudinally elongated brush (2) with an anterior end, perfectly wider and of rectangular cross-section with rounded edges, on one of whose larger surfaces the bristles (8) are implanted; - preferably a hollow handle (3), inside which the pressurized cartridge (4) is housed, with a metering valve (24-25) containing the aerosol toothpaste; characterized; why:

- the rear end of the brush has linking and fixing means (13-14-32) with means of equal dimensions and of coincident cavities, in the anterior wall of the handle; brush (13'-14'-32 '); said handle has at its outer surface, at least one preferably annular flange for manual apprehension;

- the cartridge is projected towards the end of the brush, when manual pressure is exerted on its bottom, the sufficient path being displaced so that the end of the duct of its opening valve in the closed state (24) stops at the inner flange of the hole (1 1) of the end of the brush, so that said valve is opened (25) and by means of the internal pressure of the cartridge, it doses and propels the toothpaste towards the outside of the brush.

2) Toothbrush containing dentifrice in the form of an aerosol within a pressurized metering cartridge, according to claim 1, characterized in that the toothbrush has at its flattened end, bristles (8), among which there is at least one exit hole (7), of a Inner longitudinal duct (9), which ends in a hole (12), which has a short cylindrical widening (10) near its edge, where the end of the valve that doses and propels the dentifrice is housed (24-25) .

3) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge (4), according to claim 1, characterized in that said brush and its hollow handle, is constituted by a single structurally integral piece (1).

4) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that said brush is constituted by two main parts, a lower segment that includes the end and body of the toothbrush (2 ), which ends in a central segment of cylindrical shape with thread (13), on its surface, of diameter and thread equal to that of a conduit (13 ') that passes through the center of the wall that closes the front end of the hollow handle (3), so that it is fixed when it is screwed inside, being sealed by the interposition of an elastic washer (15), its end protruding inside said handle, at whose center the inner duct (9) flows into a hole with an emboque surface (12) for the connection inside the cavity (10) with the projecting end of the opening valve in the closed state (24).

5) Toothbrush containing dentifrice in the form of an aerosol within a pressurized metering cartridge, according to claim 1, characterized in that said brush is constituted by two main parts, a lower segment that includes the end of the toothbrush (2) which it contains the bristles (8), and the adjacent segment that extends into another longitudinal segment that constitutes the body that ends at its rear end in a frustoconical segment (14) whose end has an annular flange (17), to be connected and fixed exerting manual pressure, in a cavity of the same shape and diameters (14 ') located in a projection located in the center of the lower wall of the hollow handle, on whose edges there is a plurality of yielding recesses (16), which fix them. 6) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that at the end of the body of the brush, whatever the shape of its cross-section, it has in its perimeter adjacent to the edge of its end, at least one perpendicular projection perpendicular (17), to its longitudinal axis, for its insertion and retention in the hole of a conduit of the same shape and diameters in the center of the anterior wall of the hollow handle (3) of the brush, inside which it continues.

7) Toothbrush containing dentifrice in the form of an aerosol within a pressurized metering cartridge, according to claim 1, characterized in that at the end of the body of the brush whatever the shape of its cross section has at least its end, an annular projection for grabbing it manually (33), between which and the end of the brush, has at least one perimeter flange perpendicular to its longitudinal axis (32), for its insertion and retention in the anterior orifice of the conduit in the same way and diameters in the center of the anterior wall of an intermediate linkage part (29), whose rear part has a directly opposite conduit with locking means at its edge (30) for the insertion and retention in the closure flange of the anterior end of the cartridge pressurized (30 '), thus constituting the handle of the brush, the middle part of said part having a structural design of annular grooves (31'), interrupted by two bridges of material, located diametrically opposite (31), which as a hinge allow the approach of its ends when exerting pressure on it, and the subsequent recoil of the parts that are inserted into it, when said pressure ceases.

8) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized dosing cartridge, according to claim 1, characterized in that the dosing cartridge (4) that is located inside the hollow handle, exceeds its length protruding from said handle (Fig. 4), so that it can be manually pressed to activate the opening valve in the closed state (24), making pressure exerted directly on its bottom. 9) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized dosing cartridge, according to the preceding claim, characterized in that the dosing cartridge (4), can be pressed manually by a sliding lid (20), with locking means by internal projections on its edge (22), and external projections on the flange of the handle (21), whose recoil produces the force caused by the spring inside (27) of the valve.

10) Toothbrush containing dentifrice in the form of an aerosol within a pressurized dosing cartridge, according to claim 1, characterized in that the dosing cartridge (4) is contained entirely within the interior of the handle (3) (Fig. 1 -6-8), which has its rear end closed by a lid (5) of elastic thermoplastic material having an annular projection inside its edge (22), coinciding with at least one outer projection at the edge of said handle (21), whose bottom is convex outwards, having in its center an inner annular projection (5 ') facing the bottom of the cartridge, so that by exerting manual pressure on its outer surface, the convexity is rectified, transmitting the pressure to the bottom of the cartridge (4), thus sliding and activating the opening of the airtight valve (24), producing its recoil by its elasticity and by the action of the inner spring (27), of the hermetic valve ity, returning said valve to its closed position (24).

11) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that at the surface of the outer length of the handle (3), in a cylindrical shape, there is at least one structural projection preferably annular (6), for its apprehension by means of the fingers that said brush operates.

12) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that the outer surface of the handle (3) is smooth, the annular flange of apprehension being constituted by a ring elastic (23), which fits in tight form and can be moved to adapt it to the user's hand.

13) Toothbrush containing toothpaste in the form of an aerosol inside a pressurized metering cartridge, according to claim 1; characterized in that the widenings for its manual apprehension that the handle has on the surface of the outer length are irregularly forming ornamental fantasy figures, of comic characters for children (23 ').

14) Toothbrush containing dentifrice in the form of an aerosol within a pressurized metering cartridge, according to claim 1; characterized in that the toothpaste that is inside has in its composition sponge compounds, so that when leaving the outside of the brush take the physical form of foam (34).

15) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that the dentifrice that is inside has in its composition compounds that cause that when leaving the outside of the brush take the physical form of soft paste (35).

16) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that the dentifrice that is inside has in its composition compounds that make the exit of the brush outside the brush. Toothpaste take the physical form of cream (36).

17) Toothbrush containing dentifrice in the form of an aerosol inside a pressurized metering cartridge, according to claim 1, characterized in that the dentifrice that is inside, has in its composition compounds that cause that when leaving the outside of the brush take the physical gel form (37).

18) Toothbrush containing aerosol dentifrice inside a pressurized metering cartridge, according to claim 1, characterized in that between the bristles, there are sheets of elastomeric material (38) with fine granules of abrasive materials (39), inside of its structure constitutive, which through holes through the brush are also continued and distributed on the back of its lower end, helping said sheets of abrasive characteristics, with the action of the dentifrice, in the removal of mineral deposits in the teeth. 19) Toothbrush containing aerosol dentifrice within a pressurized metering cartridge, according to claim 1, characterized in that said brush is suitable for being incorporated into toothbrushes with electromechanical mechanisms that produce automatic movements in the sector of its bristles ( Fig. 13-49), the cartridge (3) being inside the same handle, linked to the brush by means of a flexible connecting conduit (46).

20) Toothbrush containing aerosol dentifrice inside a pressurized metering cartridge, according to claim 1, characterized in that the inner longitudinal duct (9 '), of said brush, can contain inside a non-stick tubular duct (51) , whose placement is possible by a truncated conical sector (50) of emboque.