Nasal delivery

Abstract

A nasal delivery device for and method of delivering substance to a nasal cavity of a subject, the delivery device comprising: a nosepiece for fitting to a nostril of a subject, wherein the nosepiece comprises a tip element which includes a delivery aperture from which substance is in use delivered into the nasal cavity, and the tip element is at least in part tapered such as to be inclined to a longitudinal axis of the nosepiece, with the delivery aperture extending both laterally across the tip element and along a longitudinal extent of the tip element; a nozzle through which substance is in use delivered, preferably substantially axially to a longitudinal axis of the nosepiece, to the respective nasal cavity; and a delivery unit for delivering substance through the nozzle of the nosepiece.

1 - 78 . (canceled) 
     
     
         79 . A nosepiece comprising a tip element which includes a delivery aperture, wherein:
 the tip element is tapered and inclined to a longitudinal axis of the nosepiece from a first section of the tip element to a second section of the tip element, whereby the delivery aperture extends both laterally across the tip element and along a longitudinal extent of the tip element;   the tip element extends substantially axially to the longitudinal axis of the nosepiece; and   the first section of the tip element has a length greater than twice that of the second section of the tip element.   
     
     
         80 . The delivery device of  claim 79 , wherein the tip element has an elongate lateral section which has a longer dimension in a first direction than a second direction orthogonal to the first direction. 
     
     
         81 . The delivery device of  claim 80 , wherein the elongate lateral section of the tip element is substantially elliptical. 
     
     
         82 . The delivery device of  claim 80 , wherein the elongate lateral section of the tip element is substantially rectangular. 
     
     
         83 . The delivery device of  claim 79 , wherein the delivery aperture is located on the longitudinal axis of the nosepiece. 
     
     
         84 . The delivery device of  claim 79 , wherein the nosepiece further comprises a base section from which extends the tip element.