Patent Application
20090209925
The present invention relates to a device in particular for treatment of an affection of the carotid arteries.
Solid emboli, generally constituted by aggregates of blood cells, are amongst the main causes of partial or total obstruction of blood vessels.
Following upon a lesion of a blood vessel or the presence of high values of lipids in the blood, there may arise formation of lipid plaques and/or plaques formed by blood cells, referred to as atheromatous plaques, which can reduce the calibre of the vessels even to a marked extent and hence reduce irrigation by the blood of the tissues in which said vessels are located.
It may occur, on occasion, that portions may detach from said plaques to form the so-called emboli, which circulate freely in the blood stream.
When such a portion detaches from an atheromatous plaque present at the level of the heart or carotid, the embolus thus formed may reach the central nervous system and occlude a capillary of the brain.
The above occlusion causes the lack of irrigation of a more or less extensive area of the brain, which in some cases may cause cerebral embolism.
Numerous forms of treatment are known both of an invasive type and of a non-invasive type for treating and/or preventing such affections, which so far, however, have not afforded a solution to the problem.
It is known that the formation of atheromatous plaques is often accompanied by inflammatory phenomena of the tissue surrounding the blood vessel concerned.
The inflammation involves various steps that lead to a morphological alteration of the inflamed tissue. In particular, the restriction of the vessel lumen may initially be noted, which is then followed by a dilation thereof, accompanied by hyperaemia. Said behaviour is referred to as vessel reaction.
Following upon inflammation, mobile phagocytes are recalled by the affected tissue, which, together with the local histocytes, ingest the lipids that deposit along the vessel walls.
Should, however, the activity of the leukocytes in the blood be insufficient to eliminate completely infiltration of lipids in the vascular intima, the inflammation becomes chronic.
A known treatment of chronic inflammatory phenomena is by thermal and inhalational therapy, hydrotherapy, mud-baths, and flow of steam capable of bringing about a dilation of the blood vessels.
However, such forms of treatment have proven ineffective in combating deep internal inflammatory phenomena.
Research is consequently directed at identifying a treatment, as well as a device for administration thereof, that will be able to prevent or treat inflammation of vascular tissues, in particular at a carotid level, the formation of atheromatous plaques and hence reduce the risk of cerebral embolism. In addition, it would be desirable to identify a treatment, as well as a device for administration thereof, that can be successfully applied to a wide range of patients and that presents a low cost and will thus enable extension of application of said treatment also to health systems with limited economic resources.
The aim of the present invention is to provide a treatment for an affection of the carotid arteries, in particular for cerebral embolism, as well as a device for administration thereof, that will be free from the disadvantages of the known art.
In particular, according to the present invention, said aim is achieved by means of a device that comprises a collar, at least one inflatable elastic cushion carried by said collar, and a pad carried by said inflatable cushion and comprising a revulsive active principle, inflation of said cushion facilitating absorption of the active principle.
The active principle is preferably a dried herb, more preferably a crucifer, moistened with water.
Preferably, the crucifers are selected from the group consisting of mustard, radish, and cress, which all contain, in different quantities, allyl isothiocyanate (C3H5NCS), which is a substance that is able to elicit a vasomotor reaction.
It is known that allyl isothiocyanate, which is present in high concentrations in various plants, can cause vesicatory phenomena, in particular when they are applied in the proximity of sensitive tissues, for example the mucosae. Consequently, its use at high concentrations is certainly not recommended.
According to the present invention, the dried herbs are used after being moistened with water, preferably at a temperature of 10° C.
In this way, the allyl isothiocyanate present therein is diluted, thus reducing its harmful effects, but preserving its vasomotor properties.
In order to reach deep internal vessels, such as the primitive and internal carotids, the device according to the invention is provided with at least one inflatable elastic cushion, inflation of which promotes the in-depth absorption of the revulsive active principle.
Further characteristics and advantages of the device according to the present invention will emerge clearly from the ensuing description of a non-limiting example of embodiment thereof, described with reference to the annexed plate of drawings, wherein
Designated, as a whole, by 1 in
In particular, each cushion 10 defines within it a compression chamber, which communicates, through a flexible tube 13, with an inflation device of a manual type 14, for example a deformable bladder, which, when subjected to an external manual pressure, compresses the air contained therein and sends it to the cushion 10.
In addition, a connection device of a snap-action type 16 (for example, comprising four press-studs—illustrated only in
Also provided is a connection device of a reversible type, for example, of the Velcro™ type (not illustrated), to enable a stable positioning of the pad 12 on the outer surface of the cushion 10.
The device according to the present invention is designed, in use, to be fixed to the patient's neck by means of the pair of strips 8 provided with Velcro™ at their ends.
The spacing between the two inflatable cushions 10 is such as to enable their positioning against the right and left carotid arteries.
A pad 12, soaked in the revulsive active principle is applied on each cushion 10, using Velcro™.
After the inflatable cushions 10 have been inflated using the manual-inflation device 14, absorption of the revulsant through the skin is promoted.
The device according to the invention, by enabling release of the revulsive active principle, is suited to the treatment of affections of the carotid arteries, in particular of carotid restriction, atherosclerosis, and of cerebral embolism.
The present invention moreover proposes the use of a revulsive active principle for the preparation of a medicament for the treatment of an affection of the carotid arteries, preferably selected in the group consisting of carotid restriction, atherosclerosis, and cerebral embolism.
Preferably, the revulsive active principle is a dried herb moistened with water, more preferably a crucifer.
Preferably, the dried herb is selected in the group consisting of mustard, radish, and cress, which are herbs rich in allyl isothiocyanate (C3H5NCS).
Preferably, the revulsive dried herb is moistened with water at a temperature of 10° C.
In a preferred embodiment of the invention, the medicament is prepared in the form of a transdermal plaster or alternatively is released using a device according to the present invention.
In use, the plaster is applied to the skin in such a way that the revulsive active principle is released. In addition, in order to promote administration of the active principle, a collar 2 (illustrated in
Once the active principle has been administered via transdermal route, it reaches the blood vessels of the carotid arteries, so causing hyperaemia, with consequent mobilization of mobile phagocytes, and thus promoting the vasomotor reaction.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/IB2005/003900 | 12/28/2005 | WO | 00 | 11/17/2008 |
