Nozzles for nasal drug delivery
First Claim
Patent Images
1. A nozzle for delivering an intranasal dosage form comprising:
- a distal and a proximal end of the nozzle,a drug product inlet in fluid connection with the proximal end of the nozzle and configured to receive a mixture of a propellant and the intranasal dosage form,a nozzle body defining five channels, each of the five channels having a proximal end and a distal end, the nozzle body defining a longitudinal axis,a circular outlet orifice disposed at the distal end of each of the five channels forming five outlet orifices arranged in a pentagon, anda container containing a propellant in fluid communication with the drug product inlet, the propellant configured to propel the intranasal dosage form from the drug product inlet through the channels and out the outlet orifices,each of the five channels configured to generate a stream of intranasal dosage form during a delivery time course which streams form a narrow plume once exited the outlet orifices, wherein an angle of the narrow plume is about 5 degrees, about 4 degrees, about 3 degrees, about 2 degrees, about 1 degree, or about 0 degree.
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Abstract
A nozzle for use in delivering a mixture of aerosol propellant and drug formulation. The nozzle includes a drug product inlet configured to receive a mixture of aerosolized propellant and an intranasal dosage form. The inlet is disposed at the proximal end. A nozzle body is secured to the drug product inlet. Two or more channels are disposed within the body. Two or more orifice apertures are disposed at the distal end of the nozzle.
196 Citations
14 Claims
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1. A nozzle for delivering an intranasal dosage form comprising:
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a distal and a proximal end of the nozzle, a drug product inlet in fluid connection with the proximal end of the nozzle and configured to receive a mixture of a propellant and the intranasal dosage form, a nozzle body defining five channels, each of the five channels having a proximal end and a distal end, the nozzle body defining a longitudinal axis, a circular outlet orifice disposed at the distal end of each of the five channels forming five outlet orifices arranged in a pentagon, and a container containing a propellant in fluid communication with the drug product inlet, the propellant configured to propel the intranasal dosage form from the drug product inlet through the channels and out the outlet orifices, each of the five channels configured to generate a stream of intranasal dosage form during a delivery time course which streams form a narrow plume once exited the outlet orifices, wherein an angle of the narrow plume is about 5 degrees, about 4 degrees, about 3 degrees, about 2 degrees, about 1 degree, or about 0 degree. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for delivering a drug product to an olfactory region of a nasal cavity, the method comprising:
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providing a nozzle, the nozzle having a proximal end and a distal end, a drug product inlet in fluid connection with the proximal end of the nozzle and configured to receive a mixture of a propellant and the drug product, five channels contiguous with the drug product inlet and with five circular outlet orifices arranged in a pentagon at the distal end of the nozzle, each channel for carrying the drug product; providing a container containing a propellant in fluid communication with the drug product inlet of the nozzle, the propellant configured to propel the drug product from the drug product inlet though the channels and out the five circular outlet orifices; providing a drug product at the drug product inlet of the nozzle; and dispensing the propellant to propel the drug product from the drug product inlet through the channels and out the five circular outlet orifices; wherein each of the five channels generates a corresponding stream of drug product that together form a narrow drug plume upon exiting distal end of the nozzle, wherein an angle of the narrow drug plume is about 5 degrees, about 4 degrees, about 3 degrees, about 2 degrees, about 1 degree, or about 0 degree. - View Dependent Claims (13, 14)
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Specification