Monodose nasal drug delivery system
First Claim
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1. A delivery device for delivery of a medicament to a user, comprising:
- a tubular reservoir for containing the medicament;
a body sized and shaped to receive at least a part of said reservoir;
a spray nozzle arranged on one of said body and said reservoir, said nozzle providing a path for the medicament to be expelled from said reservoir;
a pusher defining a longitudinal axis and being actuatable for causing the medicament to be expelled from said reservoir through said nozzle, said pusher being movable from a rest position to a fully activated position relative to said body in response to an actuating force;
a dose control apparatus for ensuring that the medicament is delivered by said device, said dose control apparatus comprising a track defined on said body and a track follower defined on said pusher, said track follower further comprising a peg defined on a flexible arm of said pusher, said track further comprising an interlock defining an interlock surface and a movement path and a stop, said interlock releasably receiving and retaining said track follower when said pusher is in said rest position, said pusher being retained in said rest position until a user applies said actuating force to said pusher thereby causing said track follower to engage said interlock surface, said interlock surface impeding movement of said track follower and maintaining said pusher in said rest position until said actuating force meets or exceeds a predetermined value, thereafter said flexible arm of said pusher being deflected in a direction transverse to said longitudinal axis of said pusher and said track follower overcoming said interlock surface and said track follower being movable along said track, said pusher being movable by a user from said rest position to said activated position to cause the medicament to be expelled from said reservoir through said nozzle.
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Abstract
A delivery device for delivery of a medicament to a user including a container defining a reservoir storing the medicament, a body in which the container is received, a spray nozzle arranged on one of the body and the container for receiving medicament expelled from the container, and a pusher actuatable for pushing the medicament from the container reservoir through the nozzle, said pusher being movable from a rest position to a fully activated position relative to said body in response to an actuating force. The assembly is particularly applicable to nasal syringes where it is desirable to deliver the medicament in the form of a spray.
14 Citations
19 Claims
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1. A delivery device for delivery of a medicament to a user, comprising:
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a tubular reservoir for containing the medicament; a body sized and shaped to receive at least a part of said reservoir; a spray nozzle arranged on one of said body and said reservoir, said nozzle providing a path for the medicament to be expelled from said reservoir; a pusher defining a longitudinal axis and being actuatable for causing the medicament to be expelled from said reservoir through said nozzle, said pusher being movable from a rest position to a fully activated position relative to said body in response to an actuating force; a dose control apparatus for ensuring that the medicament is delivered by said device, said dose control apparatus comprising a track defined on said body and a track follower defined on said pusher, said track follower further comprising a peg defined on a flexible arm of said pusher, said track further comprising an interlock defining an interlock surface and a movement path and a stop, said interlock releasably receiving and retaining said track follower when said pusher is in said rest position, said pusher being retained in said rest position until a user applies said actuating force to said pusher thereby causing said track follower to engage said interlock surface, said interlock surface impeding movement of said track follower and maintaining said pusher in said rest position until said actuating force meets or exceeds a predetermined value, thereafter said flexible arm of said pusher being deflected in a direction transverse to said longitudinal axis of said pusher and said track follower overcoming said interlock surface and said track follower being movable along said track, said pusher being movable by a user from said rest position to said activated position to cause the medicament to be expelled from said reservoir through said nozzle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A delivery device for delivery of a medicament to a user, comprising:
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a tubular reservoir for containing the medicament; a body sized and shaped to receive at least a part of said reservoir; a spray nozzle arranged on one of said body and said reservoir, said nozzle providing a path for the medicament to be expelled from said reservoir; a pusher defining a longitudinal axis and being actuatable for causing the medicament to be expelled from said reservoir through said nozzle, said pusher being movable from a rest position to a fully activated position relative to said body in response to an actuating force; a dose control apparatus for ensuring that the medicament is delivered by said device, said dose control apparatus comprising a track defined on said body and a track follower defined on said pusher, said track follower further comprising a peg defined on a flexible arm of said pusher, said track further comprising an interlock defining an interlock surface and a movement path and a stop, said interlock releasably receiving and retaining said track follower when said pusher is in said rest position, said pusher being retained in said rest position until a user applies said actuating force to said pusher thereby causing said track follower to engage said interlock surface, said interlock surface impeding movement of said track follower and maintaining said pusher in said rest position until said actuating force meets or exceeds a predetermined value, thereafter said flexible arm of said pusher being deflected in a direction transverse to said longitudinal axis of said pusher and said track follower overcoming said interlock surface and said track follower being movable along said track, said pusher being movable by a user from said rest position to said activated position to cause the medicament to be expelled from said reservoir through said nozzle, wherein said flexible arm bends as said track follower slides over said interlocking surface requiring an increasing actuating force until said track follower clears said interlocking surface, further wherein the body comprises at least one pair of rails comprising first and second rails extending between a front part of said body and a rear part of said body and defining a longitudinal space therebetween, the flexible arm being arranged in said longitudinal space and said track being arranged on one of said first and second rails, and further wherein said peg extends laterally out of the longitudinal space and over said one of said first and second rails such that said peg rests resiliently on said track. - View Dependent Claims (17, 18)
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19. A delivery device for delivery of a medicament to a user, comprising:
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a tubular reservoir for containing the medicament; a body sized and shaped to receive at least a part of said reservoir; a spray nozzle arranged on one of said body and said reservoir, said nozzle providing a path for the medicament to be expelled from said reservoir; a pusher defining a longitudinal axis and being actuatable for causing the medicament to be expelled from said reservoir through said nozzle, said pusher being movable from a rest position to a fully activated position relative to said body in response to an actuating force; a dose control apparatus for ensuring that the medicament is delivered by said device, said dose control apparatus comprising a track defined on said body and a track follower defined on said pusher, said track follower further comprising a peg defined on a flexible arm of said pusher, said track further comprising an interlock defining an interlock surface and a movement path and a stop, said interlock releasably receiving and retaining said track follower when said pusher is in said rest position, said pusher being retained in said rest position until a user applies said actuating force to said pusher thereby causing said track follower to engage said interlock surface, said interlock surface impeding movement of said track follower and maintaining said pusher in said rest position until said actuating force meets or exceeds a predetermined value, thereafter said flexible arm of said pusher being deflected in a direction transverse to said longitudinal axis of said pusher and said track follower overcoming said interlock surface and said track follower being movable along said track, said pusher being movable by a user from said rest position to said activated position to cause the medicament to be expelled from said reservoir through said nozzle, wherein said tracks include first and second tracks disposed on opposing sides of said body and said track follower includes first and second track followers on first and second flexible arms of said pusher, and said body having a first pair of rails including first and second rails and a second pair of rails comprising third and fourth rails, said firt and second pairs of rails being connected between said front part of said body and a rear part of said body, said first flexible arm being arranged in a longitudinal space between said first and second rails and said second flexible arm being arranged in a longitudinal space between said third and fourth rails, and said first track being disposed on one of said first and second rails and said second track being disposed on one of said third and fourth rails.
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Specification