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Publication Number
US-12194229-B2
Publication Date
2025-01-14
Expiration Date
Abstract
A medication delivery system having a holding chamber capable of delivering dosages of medicament from a metered dose inhaler. The holding chamber includes a first housing component having a user interface with an outlet opening and a second housing component having an inlet opening spaced apart from the outlet opening of the first housing component. The first housing component is pivotally connected to the second housing component about a pivot axis.
Core Innovation
The invention is a portable valved holding chamber for enclosing and carrying a pressurized metered dose inhaler (MDI). It includes first and second housing components that are pivotally connected about a pivot axis and move between a closed configuration and an open configuration. In the closed configuration, the first and second housing components define an enclosed interior space, and in the open configuration they are spaced apart to define an access opening communicating with the interior space.
A cap is moveably connected to one of the housing components and is movable between a closed position and an open position. In the closed position, the cap engages the other housing component and maintains the first and second housing components in the closed configuration, and in the open position the cap is disengaged such that the first and second housing components are capable of being pivoted to the open configuration. The inlet opening includes a sealable backpiece configured to receive a mouthpiece of the pressurized metered dose inhaler.
The chamber includes internal valving and sealing and anti-rattle and safety closure features. Sealing is described along component seams, and an internal two-way inhalation/exhalation valve is described with elliptical valve-seat/opening geometry for improved uniform opening and flow. Anti-rattle engagement is described using ribs/fingers and/or other conforming features to constrain the MDI, and a cap latching arrangement with redundant opening interlocks is described to prevent inadvertent opening and dropped-device failure.
Claims Coverage
The partial document provides three independent claims directed to a holding chamber with pivoting housing components and a cap, including latch and biasing refinements and internal engagement features for a medicament delivery device. Across the independent claims, the main inventive structure involves pivotally connected first and second housing components transitioning between closed and open configurations, a cap that maintains and releases the closed configuration, and optional latch and engagement-member arrangements that control cap and housing motion and receive a medicament delivery device.
Pivoting two-part housing with closed and open configurations
first and second housing components are pivotally connected about a pivot axis and are pivotable relative to each other between a closed configuration, wherein they define an enclosed interior space, and an open configuration, wherein they are spaced apart and define an access opening communicating with the interior space; the inlet opening comprises a sealable backpiece configured to receive a mouthpiece of the pressurized metered dose inhaler.
Cap maintains the closed configuration and is disengaged for opening
a cap moveably connected to one of the housing components is moveable between a closed position, wherein the cap engages the other housing component and maintains the first and second housing components in the closed configuration, and an open position, wherein the cap is disengaged so the first and second housing components are capable of being pivoted to the open configuration.
Two-latch closure coordinating housing latch and cap latch
a first latch secures the first and second housing components in the closed configuration and an unlatched configuration allows movement to the open configuration; a second latch secures the cap to the other housing component in the closed position and an unlatched configuration allows the cap to move to the open position; and the first latch is moveable from latched to unlatched only when the second latch is unlatched.
Biasing member maintaining the cap in the open position
a cap moveably connected to one of the housing components is moveable between a closed position and an open position, and a biasing member maintains the cap in the open position.
Across the independent claims, the claims cover a holding chamber with pivotally connected first and second housing components defining a closed enclosed interior space and an open access opening, together with a cap that engages to maintain the closed configuration and disengages for pivoting. The claims further add latch coordination between housing and cap release, and a biasing member that maintains the cap in the open position.
Stated Advantages
Prevents inadvertent opening and dropped-device failure via latching and redundant opening interlocks.
Improves uniform opening and flow via elliptical valve-seat/opening geometry.
Documented Applications
No documented applications found
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