Patent ID: 6811543
Filing Date: 2004-11-02
Classification: A61M

Abstract:
A method for introducing a powdered or particulate substance into a nostril of a subject, said method comprising:a. providing a hollow tubular member having open ends, an interior cross-sectional area not exceeding 75 mm2, the tubular member comprising an intermediate angular portion spaced from the ends, an inner cavity for receiving the substance to be introduced into a nostril of the subject and a flow restriction region between the inner cavity and an open end that is a mouthpiece; b. arranging a dose of the substance in the inner cavity; c. establishing a restriction to the passage of air in the flow restriction region; d. inserting the mouthpiece between the lips of a user; e. inserting the other end of the tubular member into the subject's nostril; f. blowing into the mouthpiece of the tubular member while maintaining the restriction, whereby a zone of high pressure air is created in the mouthpiece; and g. releasing the restriction, while continuing to blow the exhaled air thereby directing a stream of air through the inner cavity of the tubular body to transfer the substance into the subject's nostril.