Drive mechanism
OwnerAdam Stuart, Stephen Howgillinventors
Life of this patent
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Abstract
In general terms the present invention proposes a medicament dispenser 100 for use with at least one medicament carrier carrying multiple distinct medicament dose portions. The medicament dispenser 100 comprises: (a) a dispensing mechanism actuable for dispensing the dose portions carried by the at least one medicament carrier; (b) a mouthpiece 106; and (c) a cover for the mouthpiece, the cover being movably mounted to the dispenser 100 for sequential movement from a closed position in which the mouthpiece 106 is at least partially covered, to an open position in which the mouthpiece 106 is uncovered, via a first position, and optionally via a second position between the first position and the closed position that includes the closed position.
Claims15
A medicament dispenser for use with at least one medicament carrier carrying multiple distinct medicament dose portions, the medicament dispenser comprising:
- (a) a dispensing mechanism actuable for dispensing the dose portions carried by the at least one medicament carrier;
- (b) a mouthpiece;
- and
- (c) a cover for the mouthpiece, the cover being movably mounted to the dispenser for sequential movement from a closed position in which the mouthpiece is covered, to an open position in which the mouthpiece is partially uncovered, via a first position, and to a second position in which the mouthpiece is fully uncovered, such that the first position is between the second position and the closed position;
- wherein the cover is adapted to couple with the dispensing mechanism such that:
- movement of the cover from the closed position to the second position results in full actuation of the dispensing mechanism;
- and
- wherein the cover is adapted to couple with the dispensing mechanism such that:
- movement of the cover from the closed position to the first open position results in partial actuation of the dispensing mechanism;
- return movement of the cover from the first position to the closed position does not result in actuation of the dispensing mechanism;
- and subsequent movement of the cover from the closed position to a distance equal to the distance between the closed and second positions less the distance between the closed and first positions results in full actuation of the dispensing mechanism, but any further movement of the cover to the second position does not result in actuation of the dispensing mechanism.
A medicament dispenser comprising:
- a patient manual interface;
- a rotation control member;
- a driving plate, to drive stepwise advancement of dose portions to a dispensing station for inhalation by a patient, the driving plate comprising a camming feature and ratchet teeth;
- and
- a body comprising a slot;
- wherein the rotation control member is driven between a rest state and an actuated state via an intermediate state by reciprocal movement of the patient manual interface between a rest state and an actuated state;
- wherein the driving plate is mounted for reciprocal movement between a disengagement plane and an engagement plane, the camming feature and slot together allowing the driving plate to be moved reciprocally between the disengagement plane and the engagement plane;
- wherein when the rotation control member moves from the rest state to the intermediate state, the rotation control member engages with the ratchet teeth to move the driving plate from its disengagement plane to its engagement plane;
- wherein movement of the rotation control member in the intermediate state away from the actuated state is arranged to disengage the rotation control member from the driving plate;
- and
- wherein movement of the rotation control member in the intermediate state towards the actuated state is arranged to engage the rotation control member with the ratchet teeth to move the driving plate, such that the driving plate is rotatable in a drive direction to drive stepwise advancement of the dose portions.
Dependencies are inferred from the claim text.