Firing flap dispenser
AssigneeClinical Designs Limited
InventorRaymond John Bacon
Life of this patent
Estimating the term…
Abstract
A breath actuated dispenser there-shown has a generally L-shaped hollow body 1 with a mouthpiece 2. An aerosol drug can 3 is mounted in the body. The can has a dispensing spout 4, which engages a receptor moulding 5 incorporating a living hinge 11, a movable outlet member 8 and a kink valve 9. A flap member 31 is pivotally mounted between the can and the receptor moulding. Breathing in through the dispenser by the patient will cause the flap to be drawn down against its spring 34. The outlet member is then tipped down by the spring 37 to point out of the mouthpiece 2, whence the dose is dispensed by opening of the kink valve.
Claims19
A dispenser for a gaseous, gas borne or droplet substance contained in a source thereof, the dispenser including:
- a body with a mouthpiece;
- a junction in the body for the substance source;
- and
- a breath actuable valve, for controlling the release of the gas or liquid containing or comprising the substance, the valve comprising:
- a flexible tube for receiving the said gas or liquid, the tube extending from a valve inlet connected to the junction and having a portion which is kinkable for closure of the valve and movable to an open position in which the tube is un-kinked for opening of the valve;
- and
- an outlet member arranged for movement in the body on inhalation to un-kink the valve;
- the tube being kinked to an obturating extent when the outlet movable member is in a ready position and un-kinked when the outlet movable member is moved on inhalation for release of the gas or liquid;
- the dispenser also including:
- a sear to hold the outlet movable member in the ready position closing of the tube by kinking prior to inhalation and
- a breath actuatable flap arranged in the body for movement on inhalation to release the sear and allow the outlet movable member to move for release of the gas or liquid.
Dependencies are inferred from the claim text.