FR2467604A1 - Nozzle for outlet tube of aerosol nasal spray - has extra discharge passage directed into face sinuses - Google Patents

Abstract

The nozzle is of olivary form and fits on the end of the delivery tube from the container. The outlet of the delivery tube communicates with a main passage extending right through the nozzle and coinciding with its longitudinal axis. Near the middle of the nozzle a branch passage diverges from the main passage, pref. at about 45 deg. When the nozzle is inserted coaxially into a nostril the branch passage outlet is directed towards the face sinuses. The nozzle is pref. made of smooth stainless steel or inert plastic.

Description

 The present invention relates to a nozzle suitable for physiological nasal spraying.

 As is known, nasal drug sprays are carried out using an aerosol spray system. The systems known to date have only one spray channel, which means that the user quite generally sprays in one direction, parallel to the floor of the nasal cavity. Such a spraying does not lead to the best results and it would be advisable to carry out another spraying towards the place of mouth of the sinuses of the face, or medium meat.

 In practice, this is not achievable with current devices, on the one hand because of the difficulty encountered in properly orienting the device, aggravated by the generally traumatic nature of the nasal tip, and on the other hand due to the lack of information from the patient.

 The present invention has for its object a non-traumatic nasal nozzle, which can be fixed on existing sprayers, by known means, for example by embedding (as shown, without limitation, in the single appended figure), or which can be an integral part of the sprayer, and characterized on the one hand by a non-traumatizing olive shape and on the other hand by a spray channel which, substantially at the center of the nozzle, splits into two spray channels, the first ensuring a spray according to the direction parallel to the floor of the nasal cavity and the second then ensuring a spraying targeting the middle meat, the place of mouth of the sinuses of the face, whose skin reference mark is the internal angle of the eye.

 This corresponds to a channel divergence angle of around 450.

 The appended figure shows in section the nozzle according to the invention, mounted on a sprayer nozzle.

References have the following meanings: a. sprayer tip b. olive body of the nozzle according to the invention c. sprayer 1. sprayer spray channel, extended into
end piece b, in the same direction, through the first
part (1) of the nozzle spray channel according to
the invention.

2. "divergent" spray channel, targeting meat
way.

3. spray channel located in line with the
channel 1, ensuring spraying in one direction
parallel to the floor of the nasal cavity.

4.5 spray ports
In a preferred embodiment, the diameter of the channels 1, 2 and 3 is substantially identical.

 Note that the outer surface of the body of the nozzle according to the invention can be smooth, or on the contrary fluted lengthwise to allow the passage of air.

 The body of the nozzle according to the invention can be made of a physiologically acceptable and chemically inert plastic material known to the person skilled in the art, or of stainless steel, for example.

 Of course, those skilled in the art can make various modifications to the non-limiting embodiments which come from those described, without going beyond the ambit of the invention.

Claims (5)

1. Nozzle for physiological nasal spraying of drugs, characterized in that it attaches or is placed at the end of the spraying nozzle of the sprayer, in that it has a non-traumatic olive shape, suitable for spraying nasal, and in that it comprises a) a first spray channel arranged along its longitudinal axis, in the extension of the spray channel of the nozzle of the sprayer and b) a second spray channel connecting to said first channel substantially towards the middle of this, at an angle such that, when the first channel is parallel to the floor of the nasal fossa, in said fossa, the second canal is aimed at the middle meat, place of abutment of the sinuses of the face, whose reference mark skin view is the internal angle of the eye.  2. A nozzle according to claim 1, characterized in that said angle of divergence of the first and second channels is approximately 450. 3. End piece according to claim 1 or 2, characterized in that the first and second channels have substantially the same diameter. 4. End piece according to any one of claims 1 to 3, characterized in that its outer surface is smooth or grooved in the longitudinal direction. 5. End piece according to any one of claims 1 to 4, characterized in that it consists of a physiologically acceptable and chemically inert plastic material, or of stainless steel.