The present invention concerns a deformable container for injecting medicinal or cosmetic substances, that is, a container for dispensing a dose of medicinal, or cosmetic, substance, in the form of a liquid or a foam, and injecting it into a cavity of the human body, for example, into the anal cavity, the nose or the ears.

The state of the art includes the italian patent for utility model No.

21 3.228 by the same applicant, concerning a bellows dispenser for medicinal substances for microenemas, with incorporated cannula, including bellows with a cylindrical body equipped with a cannula whose axis is aligned with the axis of the bellows.

The said bellows dispenser is rather uncomfortable to use, in that it obliges the user to rotate his wrist in order to squeeze the body of the bellows; furthermore, it is impossible to completely empty the said body, as the reduction in the axial length of the bellows when it is compressed is limited by the folds of the bellows being brought close with each other.

The incomplete discharge of the body of the bellows makes it impossible to make use of all the substance contained in the dispenser.

The state of the art also includes deformable containers, with drip nozzle or atomiser, for introducing liquids in the nasal cavity or in the ears; the said containers also have the defect that they are difficult to empty completely, due to the limited deformability of the said container.

The present invention sets out to resolve the technical problem of finding a deformable container for injecting medicinal or cosmetic substances, in the form of a liquid or a foam, into cavities of the human body, that can be almost completely emptied, reducing to a minimum the quantity of substance contained in it that can not be used and which does not oblige the user to perform unnatural rotations of the wrist when using the container.

The present invention resolves the said technical problem by

adopting a deformable container having a body in the form of a bellows and a dispensing cannula, characterised in that the axis of the bellows and the axis of the cannula are substantially perpendicular to each other, the section of the bellows having progressively increasing dimensions, from the extremities towards the centre of the bellows.

The advantages offered by the invention are: it is easier and more comfortable to use, particularly when the container is used for microenemas; the container can be almost completely emptied, thereby reducing to a minimum the quantity of substance that is not used; simplicity and low production costs. Some embodiments of the invention are illustrated, purely by way of example, in the two tables of drawings attached in which Figure 1 is a perspective view of a first version of container as described; Figure 2 is a view as in Figure 1 , with the protective stopper removed; Figure 3 is an exploded, partially sectioned view of the container in Figure 1 ; Figure 3A is a partial longitudinal section of the container in Figure 1 , assembled; Figure 4 is a side view of the container in Figure 1 during use; Figure 5 is a view as in Figure 1 , relating to a second version of the container as described with a cannula plug; Figure 6 is a view as in Figure 3, relating to the container in Figure 5; Figure 7 is a view as in Figure 3A, relating to the container in Figure 5.

Figure 1 shows a container according to the invention, consisting of a body 2 in the form of a bellows, with a neck 3, whose axis is perpendicular to the axis of the bellows. The body 2 of the bellows is made up of a number of pairs of layers folded as in an accordion, with transverse dimensions increasing from the extremities of the bellows towards the centre and with the intermediate layers being annular in shape. The outline of the layers can be polygonal or curved. The body 2 is therefore collapsible in a double truncated pyramid or cone with the wide bases at the centre.

The neck 3, (Figure 3) has an external ring 4, in an intermediate position, and a conical enlargement at the opening 6 of the said neck.

A cannula shaped dispenser 7 is inserted in the opening 6 of the neck 3, the said dispenser having at its lower end a ring 8 bearing on the rim of the neck 3, and a lower cylindrical enlargement 9 for its insertion in opening 6 of the neck 3 so as to form a seal. A cap 1 1 is inserted on the cannula 7 and the neck 3, consisting of a hollow cylindrical base 1 2, whose internal diameter is smaller than the external diameter of the ring 4 to enable the lower edge of the said base to sit on it. Inside the said cylindrical base there are: a seat 1 3 for the snap insertion of the ring 8 of the cannula 7; a conical seat for the insertion in it of the conical enlargement 5 of the neck 3 of the container 1 and an annular projection 1 5 acting as undercut for the enlargement 5. The top of the cap 1 1 ends in a removable stopper 1 6 connected with the base 1 2 along a predetermined fracture line 1 6a. The stopper 1 6 has an internal protuberance 1 to close the dispensing aperture 1 8 of the cannula 7.

Figure 5 shows a second version 1 9 of the container as described in which the cannula 7 and the cap 1 1 are replaced with an integrated cap 20 with a cannula 21 (figure 6). The base 22 of the cap 20 is hollow with, on its inside, a conical seat 23 for the enlargement 5 of the neck 3 and annular projection 24 acting as undercut for the enlargement 5. Inside the cap 20 a substantially cylindrical protuberance 25 extends downwards that is inserted in and seals ^' the neck 3.

A removable closing seal 26 for the opening 27 of the cannula 21 is connected to the said opening along a predetermined fracture line.

Operation is as follows: once the stopper 1 6, or the seal of guarantee 26, has been removed, the cannula 7, or 21 , is inserted in the cavity of the body in which the substance contained in the container 1 , or 1 9, has to be introduced, and the body 2 of the container is compressed in a transverse direction with respect to the axis of the cannula, so dispensing the substance contained in the body 2.

It is to be noted that with the layers of the body 2 of the bellows completely compressed, the configuration of the layers of the

bellows, with dimensions decreasing outwards, enable a greater degree of compression and, consequently, a better emptying of the body 2.

In the case of the first version of container, as in Figures 1 to 3A, it is possible to close the container by inserting stopper 1 6 in the cannula 7 in such a way that the internal protuberance 1 7 shuts off the opening 1 8 of the cannula: this enable one or more subsequent utilisations of the container.

In practice the materials, dimensions and details of execution may be different from but technically equivalent to those described without departing from the juridical domain of the present invention.