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US 11,559,637 B2Granted
Inhalers and related methods
AssigneeNorton (Waterford) Limited
InventorsDaniel Buck, Paul Prendergast, Declan Walsh
Life of this patent
Estimating the term…
Abstract
An inhaler (10) has a main body for accommodating a medicament reservoir (84), a canister fire system for moving a canister (50) to release a dose in response to air flow, a cap housing (12) for enclosing the canister fire system and canister within an interior chamber defined by the main body (14) and a cap housing, wherein a lock system (250) is provided for locking the cap housing on the main body.
Claims50
A breath actuated inhaler comprising:
- a main body for accommodating a medicament reservoir,
- a canister fire system including
- a trigger;
- and
- a biasing element for moving a canister to release a dose in response to air flow,
- a cap housing,
- an interior chamber defined by the main body and the cap housing, the canister fire system and canister being enclosed within the interior chamber, and
- a lock system including helical threads having non-overlapping and distinct thread segments for providing rotational attachment of the cap housing to the main body and a first lock member that cooperates with a second lock member to achieve a snap lock between the cap housing and the main body when the cap housing is rotationally attached to the main body in a locked position,
- wherein the thread segments are radially disposed about a central axis and arranged such that the thread segments are non-overlapping with respect to each other along the central axis, and
- wherein the first lock member is interposed between the thread segments.
7 more elements
A breath actuated inhaler comprising:
- a main body for accommodating a medicament reservoir, a canister fire system for moving a canister to release a dose in response to air flow, a cap housing for enclosing the canister fire system and canister within an interior chamber defined by the main body and the cap housing, and in which the main body and the cap housing are formed of plastics material characterized in that a lock system is provided for locking the cap housing on the main body,
- wherein the lock system includes:
- helical threads having non-overlapping and distinct thread segments for providing rotational attachment of the cap housing on the main body;
- and
- a first lock member that cooperates with a second lock member to achieve a snap lock between the cap housing and the main body when the cap housing is rotationally attached to the main body in a locked position,
- wherein the thread segments are radially disposed about a central axis and arranged such that the thread segments are non-overlapping with respect to each other along the central axis, wherein the first lock member is interposed between the thread segments, and
- wherein a release torque required to overcome the lock system is more than 1 Nm and lower than 4 Nm.
4 more elements
Dependencies are inferred from the claim text.