Inhaler
First Claim
1. An inhaler for delivering medicament by inhalation, comprising:
- a housing having a mouthpiece and defining an air flow path extending from the mouthpiece through the housing;
the housing holding a replaceable canister of medicament actuatable to deliver a dose of medicament into the air flow path, said housing defining an opening in the air flow path, said opening being closed by a closure element connected to and replaceable with the canister;
an actuation mechanism for actuating the canister by a flow through the air path, said opening, when open, venting the flow sufficiently to prevent operation of the actuation mechanism, said actuation mechanism comprising a trigger in the form of a vane disposed in the air flow path and moveable physically by a flow through said air flow path.
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Accused Products
Abstract
A breath actuated inhaler for delivering medicament by inhalation, comprising a housing having a mouthpiece and defining an air flow path extending from the mouthpiece through the housing; the housing holding a replaceable canister of medicament actuatable to deliver a dose of medicament into the air flow path, wherein the housing defines an opening in the air flow path and the opening is closed by a closure element connected to and replaceable with the canister. The closure element acts as a safety feature because it is only closed when the inhaler is used with a canister to which a closure element is connected the closure element carries an indication of the type of medicament in the canister to allow the user to recognise the type of medicament. A plurality of inhalers may be provided in which each given inhaler has an opening with a different shape and has a closure element with a shape which conforms with the opening of the given inhaler but which does not conform with the openings of the other inhalers.
94 Citations
22 Claims
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1. An inhaler for delivering medicament by inhalation, comprising:
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a housing having a mouthpiece and defining an air flow path extending from the mouthpiece through the housing;
the housing holding a replaceable canister of medicament actuatable to deliver a dose of medicament into the air flow path, said housing defining an opening in the air flow path, said opening being closed by a closure element connected to and replaceable with the canister;
an actuation mechanism for actuating the canister by a flow through the air path, said opening, when open, venting the flow sufficiently to prevent operation of the actuation mechanism, said actuation mechanism comprising a trigger in the form of a vane disposed in the air flow path and moveable physically by a flow through said air flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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- 18. An inhaler for delivery of a medicament by inhalation, comprising a housing having a mouthpiece and defining an air flow path extending from the mouthpiece through the housing, the housing being arranged to hold a replaceable canister of medicament actuatable to deliver a dose of medicament into the air flow path, wherein the housing defines an opening in the air flow path arranged to be closed by a closure element connected to the canister.
Specification