NASAL DOSING DEVICE

摘要

Disclosed is an end structure (16) for a nasal insert tube (2) ofnasal dosing device (1). The nasal insert tube (2) is constructed having an outer surface (9) with at least two levels thereby forming a hub (18). The nasal insert tube (2) has a blunt dispensing end (16) with at least one ejection port (4) that is positioned substantially perpendicularly to the longitudinal axis of the nasal insert tube (2). Further, the distance D from at least one ejection port (4) to the hub (18) substantially matches a preferred distance from the outer opening of the nasal passage (i.e. the nares) to a location inside the nasal passage shown to augment the effectiveness of nasally administered medicine. For infants, the preferred distance is approximately 1 cm. The invention may be incorporated into a syringe tube (5), a gas propelled nasal device, or an adapter for either a syringe tube (5) or a gas propelled nasal dosing device.