Two-chamber cartridge for propellant-free metering aerosols
First Claim
1. A cartridge for propellant-free administration of a liquid pharmaceutical composition by inhalation, comprising:
- an elongate displacing device including an upper end and a lower end, the lower end is chamfered and is configured for at least partial insertion into a container;
a cartridge chamber disposed within the lower end of the displacing device and operable store a pharmaceutical formulation, the cartridge chamber including at least one pierceably sealed opening; and
a cannula guide extending from the upper end of the displacing device, and opening to an exterior of the displacing device, to the cartridge chamber,a cannula inserted into the cannula guide, the cannula draws solvent from the container,wherein insertion of a cannula from the exterior of the displacing device through the guide pierces the at least one sealed opening and releases the pharmaceutical formulation through the opening into a liquid solvent in the container to form the liquid pharmaceutical composition.
1 Assignment
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Accused Products
Abstract
A cartridge for propellant-free administration of a liquid pharmaceutical composition by inhalation includes: an elongate displacing device including an upper end and a lower end, the lower end for at least partial insertion into a container; a cartridge chamber disposed at the lower end of the displacing device and operable store a pharmaceutical formulation, the cartridge chamber including at least one pierceably sealed opening; and a cannula guide extending from the upper end of the displacing device to the cartridge chamber, wherein insertion of a cannula through the guide pierces the sealed opening and releases the pharmaceutical formulation into a liquid solvent in the container to form the liquid pharmaceutical composition.
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Citations
12 Claims
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1. A cartridge for propellant-free administration of a liquid pharmaceutical composition by inhalation, comprising:
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an elongate displacing device including an upper end and a lower end, the lower end is chamfered and is configured for at least partial insertion into a container; a cartridge chamber disposed within the lower end of the displacing device and operable store a pharmaceutical formulation, the cartridge chamber including at least one pierceably sealed opening; and a cannula guide extending from the upper end of the displacing device, and opening to an exterior of the displacing device, to the cartridge chamber, a cannula inserted into the cannula guide, the cannula draws solvent from the container, wherein insertion of a cannula from the exterior of the displacing device through the guide pierces the at least one sealed opening and releases the pharmaceutical formulation through the opening into a liquid solvent in the container to form the liquid pharmaceutical composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification