A breath actuated nasal drug delivery device includes a housing having a spray port; a reservoir housing a liquidous medicament; and a selectively actuable pump. A breath actuated triggering mechanism includes a mouthpiece and a diaphragm. A pressure differential across the diaphragm causes an elastically deformable drive element (e.g., spring) to release stored potential energy, causing the pump's plunger to move to thereby pump the medicament to the spray port. A cocking lever can be pivotally mounted to the housing for causing the drive element to store potential energy. The triggering mechanism can include a cam element pivotally attached to the housing and the diaphragm that rotates in response to movement of the diaphragm. A follower element can be pivotally connected to the plunger for movement therewith; the follower element releasably engages the cam element. Related methods are also described.
申请公布号
WO2008122018(A1)
申请公布日期
2008.10.09
申请号
WO2008US59056
申请日期
2008.04.01
申请人
ABBOTT LABORATORIES;WILLIAMS III, ROBERT C;DEATON, DANIEL M;GENOVA, PERRY
发明人
WILLIAMS III, ROBERT C;DEATON, DANIEL M;GENOVA, PERRY