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Details for Patent: 8,671,937

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Details for Patent: 8,671,937

Title:Unit dose capsules and dry powder inhaler
Abstract: Described is a dry powder inhaler comprising an intake section; a mixing section, and a mouthpiece.
Inventor(s): Steiner; Solomon S. (Mount Kisco, NY), Fog; Per B. (Bedford Hills, NY), Poole; Trent (South Amherst, MA), Feldstein; Robert (Yonkers, NY)
Assignee: Mannkind Corporation (Valencia, CA)
Filing Date:Mar 15, 2012
Application Number:13/421,529
Claims:1. A capsule for a dry powder inhaler comprising: a first keying surface on a top half of the capsule and a second keying surface on a bottom half of the capsule, wherein the top half and bottom half comprise an outer surface and one or more protrusions to lock and/or unlock the capsule; an air input hole, and a tangential airflow exit hole; said capsule having a substantially cylindrical interior shape when the top half and bottom half of the capsule are fitted together; wherein in an unlocked capsule a hole in the surface of the top half aligns with a hole in the bottom half to direct airflow into the capsule.

2. The capsule according to claim 1 wherein the first keying surface and the second keying surface are the same.

3. The capsule according to claim 1 wherein the first keying surface and the second keying surface are different.

4. The capsule according to claim 1 wherein the second keying surface compliments a movable keying surface on an inhaler.

5. The capsule according to claim 4 wherein the movable keying surface is associated with a joint.

6. The capsule according to claim 1 wherein the air input has a ratio of long axis to short axis of between about 2:1 and about 3:1.

7. The capsule according to claim 6 wherein the ratio is about 3:1.

8. The capsule according to claim 1 wherein the tangential airflow exit leads directly into a mouthpiece of an inhaler.

9. The capsule according to claim 1 wherein the second keying surface is rectangular.

10. The capsule according to claim 1 wherein the first keying surface is triangular.

11. The capsule according to claim 1 further comprising a medicament.

12. The capsule according to claim 11 wherein the medicament is a gel, liquid or dry powder.

13. The capsule according to claim 12 wherein the medicament is a dry powder.
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