Patent ID: 7275537

Claim:
A device for delivering multiple doses of physiologically active agent in powdered form, the device comprising: a manually rechargeable air reservoir, a powder container defining therein a plurality of individual receptacles, each receptacle containing a discrete metered dose of powder, a powder delivery passage for the forced flow therealong to a patient of gas with said metered dose of powder entrained therein so as substantially to empty said receptacle, a closure for restricting an unwanted ingress of moisture into the device via said passage when the device is not in use, and a container indexing mechanism for indexing movement of said container to move a substantially empty receptacle out of communication with said powder delivery passage and to move a fresh powder-containing receptacle into communication with said powder delivery passage, wherein the device is constructed and arranged so that an action of opening or closing said closure operates said container indexing mechanism and charges the air reservoir with air.