Patent ID: 7278982

Claim:
A device to deliver powdery medicine into the nasal cavity comprising: a capsule housing/holding part for housing and holding a capsule filled with a powdery medicine, a pump installed in the capsule housing/holding part for supplying dosing air to the capsule housing/holding part, a medicine delivery part with one or branched top end installed in the capsule housing/holding part for delivering and dosing the medicine in the capsule of the capsule housing/holding part by air supplied by way of an air flow passage built in the capsule housing/holding part from the pump to the nasal cavity of a user, a capsule selling/detaching part built in the capsule housing/holding part so as to move the capsule in a lateral direction relative to an axial direction of the capsule for setting and detaching a capsule and for perforating both axial ends of the capsule, and cutting blades built in the capsule housing/holding part so as to be movable laterally with respect to an axial direction of the capsule for perforating both axial ends of the capsule, wherein a medicine capturing/collecting part having an air flow passage shape for capturing and collecting the powdery medicine falling and flowing backwardly from the capsule after perforation and not causing them to flow backwardly to the pump, and capable of dosing the captured and collected powdery medicine by the operation of the pump, and a one-way valve the opening pressure of which is controlled by a spring are built in the air flow passage.