Multi-dose medicament delivery device

1. A multi-unit dose dry powder medicament delivery device comprising:

a first element comprising a single use nozzle located in a body which is at least partially lined with an inner sleeve, said inner sleeve comprising an airway and a cartridge seat; and

a second element adapted to be releasably attached to the first element, said second element comprising an actuator provided with an air source and a valve;

wherein the inner sleeve is provided with a shuttle valve which is dimensioned such that in the closed position it blocks the airway only until the device is primed by a user; wherein the shuttle valve is provided with two orifices and the nozzle is provided with a stop capable of arresting movement of the shuttle valve; and

wherein the actuator in the second element comprises a spigot element which, when inserted into the first element, pushes the medicament container into position for delivery of the medicament.

2. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the inner sleeve comprises at least one baffle element.

3. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the releasable attachment of the first element to the second element comprises a screw fit.

4. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the shuttle valve is provided with a pair of orifices which, when a device is primed, align with the airway of the device.

5. A multi-unit dose dry powder medicament delivery device according to claim 1 comprising a medicament cartridge comprising an elongate member provided with an inset cavity which acts as a medicament reservoir.

6. A multi-unit dose dry powder medicament delivery device according to claim 1 comprising a medicament cartridge provided with a closure sleeve.

7. A multi-unit dose dry powder medicament delivery device according to claim 6 wherein the closure sleeve is slidably mounted around the inset cavity.

8. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the spigot element is provided with at least one aperture to enable air to pass from the air source and valve through the spigot.

9. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the valve is a burst valve.

10. A multi-unit dose dry powder medicament delivery device according to claim 1 wherein the device is suitable for the treatment of a respiratory disorder.

11. A multi-unit dose dry powder medicament delivery device according to claim 10 wherein the device is a nasal inhaler.

12. A method of delivering a medicament to a patient which comprises the use of a dry powder medicament delivery device according to claim 1 ;

said method comprising the steps of:

(i) engaging the nozzle;

(ii) screwing in the nozzle and priming the device; and

(iii) actuating the device.

13. A multi-unit dose dry powder medicament delivery device kit comprising:

a first element comprising a single use nozzle, said nozzle being located on a body which is at least partially lined with an inner sleeve, said inner sleeve comprising an airway and a cartridge seat;

a second element adapted to be releasably attached to the first element, said second element comprising an actuator provided with an air source and a valve;

wherein the inner sleeve is provided with a shuttle valve which is dimensional such that in the closed position it blocks the airway only until the device is primed by a user; wherein the shuttle valve is provided with two orifices and the nozzle is provided with a stop capable of arresting movement of the shuttle valve; and

wherein the actuator in the second element comprises a spigot element which, when inserted into the first element, pushes the medicament container into position for delivery of the medicament; and

at least one cartridge comprising a dry powder medicament.