Valois Sas

Ian Darby

Stuart Kay

Neil Harrison

Peter Crew

Matthew Young

Anne Powell

Cheryl Vanessa Rogerson

A dry powder inhaler, including a powder dispersion engine with one or more beads in a dispersion chamber, an airflow path leading into the dispersion chamber, an elongated tape with spaced apart blisters, each blister holding a dose of a dry powder, and blister opening mechanism that sequentially opens the blisters on the elongated tape and releases the dose of each blister into the airflow path.

Breath actuated dry powder inhaler and tape dose strip

A dry powder inhaler, including a housing having an airflow path leading from an inlet, past a powder release location, to a mouthpiece; a drive spool engaged with a capstan adjacent to the powder release location; a spring biasing a ratchet into engagement with the drive spool; and a breath trigger in the airflow path. The breath trigger is moveable from a first position, wherein the breath trigger holds the ratchet, to a second position, wherein the breath trigger releases the ratchet to allow the ratchet to turn the drive spool.

A method for operating a dry powder inhaler, the dry powder inhaler having a dose tape having spaced apart doses of a powder pharmaceutical, each dose being in a respective sealed blister. The inhaler includes a breath actuated blister opening system that sequentially opens a blister on the tape. The method involves routing the dose tape between first and second rotating elements; spring biasing the first rotating element to turn in a first direction; holding the first rotating element from rotating against the spring biasing; and releasing the first rotating element, and allowing it to rotate a fraction of one rotation, when air flows adjacent to the first rotating element.

A dose tape for use in a dry powder inhaler has blisters formed in a formpack layer. A lidstock layer is attached over the formpack layer, to seal a dose of dry powder within each of the blisters. A tear strip is attached to the lidstock layer over each of the blisters. Pulling on the tear strip shears out an area of the lidstock over the blister, unsealing the powder contents.

Growing community of inventors

Ruddington, United Kingdom

Ian Darby