# US 8,739,785 B2 · Inhaler

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- Number: US 8,739,785 B2
- Document ID: US8739785B2
- Status: Granted
- Kind: B2
- Application number: 13/688,639
- Filed: 2012-11-29
- Published: 2013-05-23
- Granted: 2014-06-03
- Earliest claimed: 2009-01-30
- Assignees: Vectura Delivery Devices Limited
- Applicants: Vectura Delivery Devices Limited
- Inventors: Matthew Paul Wright; Michael Sheldon; Matthew Neil Sarkar; Ivan Milivojevic; Roger Clarke; Emma Lesley Williamson
- Web page: https://patentgrep.com/patent/US8739785B2

## CPC

- A61M 15/0028: {using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up}
- A61M 15/0026: {Hinged caps}
- A61M 15/0038: {Cutting means}
- A61M 15/0091: {mechanically breath-triggered}
- A61M 15/0093: {without arming or cocking, e.g. acting directly on the delivery valve}
- A61M 2202/064: Powder
- A61M 2206/16: Rotating swirling helical flow, e.g. by tangential inflows
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

An inhalation device comprising a base having a slot for insertion of a single blister containing a dose of medicament to be inhaled into the base is disclosed. The inhaler has a mouthpiece pivotably mounted to the base which carries a blister piercing element operable to pierce a blister received in said slot when the mouthpiece is pivoted relative to the base. When a user inhales on the mouthpiece, the dose is entrained in an airflow and flows out of the blister through the mouthpiece and into the user's airway.

## Claims

### Claim 1

A blister piercing element for a dry powder inhalation device comprising a plate having a plurality of peripheral blister piercing blades bent out of the plane of the plate along fold lines to form clean air inlet flow openings through the plate, wherein each blade points away from each of the other peripheral piercing blades and the fold lines of each peripheral piercing blade lies substantially at 90 degrees to the fold line of each of the adjacent peripheral piercing blades, the blister piercing element further comprising a central piercing blade surrounded by the peripheral piercing blades, the central piercing blade being bent out of the plane of the plate along a fold line.

### Claim 2 (depends on 1)

A blister piercing element according to claim 1, comprising four peripheral piercing blades.

### Claim 3 (depends on 1)

A blister piercing element according to claim 1, wherein the fold line of the central piercing blade extends at an angle relative to the fold lines of each of the peripheral piercing blades.

### Claim 4 (depends on 3)

A blister piercing element according to claim 3, wherein the fold line of the central piercing blade is angled at 45 degrees to the fold lines of each of the peripheral piercing blades.

### Claim 5 (depends on 1)

A blister piercing element according to claim 1, wherein arms depend outwardly from the plane of the plate at an angle and tabs extend from the ends of the arms in a plane parallel to the plane of the plate, the tabs having holes therein to facilitate the attachment of the piercing element to an inhalation device.