Cartridge for applying medicament to an eye
First Claim
Patent Images
1. A cartridge for use with a dispenser for applying medicament to an eye comprising:
- a housing defining a first aperture in an anterior region thereof, the first aperture for exposing a nozzle of the dispenser to permit medicament from the dispenser to be emitted through said aperture;
a compressible inner member situated within the housing, the inner member being compressible from an expanded state to a compressed state and the inner member being biased to expand it to said expanded state from said compressed state, the inner member having a region thereof projecting from a second aperture defined by the housing in the expanded state of the inner member;
a lever which is movable between a first position in engagement with the inner compressible member, and a second position out of engagement with the inner compressible member; and
a means belonging to the lever or the inner compressible member for retaining the inner compressible member in the compressed state, said means for retaining being disengaged upon movement of the lever from the first position to the second position.
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Accused Products
Abstract
A cartridge for actuating a piston-like or accordion-like dispenser-vial for applying medicament to an eye. The cartridge includes a housing for holding the dispenser-vial and a telescoping cylinder for compressing the dispenser-vial in the longitudinal direction to actuate the vial. The cartridge includes a locking mechanism for locking the telescoping cylinder to restrict its movement and a lever mechanism for releasing the cylinder from the locked position so that a drop is released from the dispenser. The housing includes a finger for engaging the lower eyelid and exposing the conjunctival cul-de-sac.
182 Citations
23 Claims
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1. A cartridge for use with a dispenser for applying medicament to an eye comprising:
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a housing defining a first aperture in an anterior region thereof, the first aperture for exposing a nozzle of the dispenser to permit medicament from the dispenser to be emitted through said aperture; a compressible inner member situated within the housing, the inner member being compressible from an expanded state to a compressed state and the inner member being biased to expand it to said expanded state from said compressed state, the inner member having a region thereof projecting from a second aperture defined by the housing in the expanded state of the inner member; a lever which is movable between a first position in engagement with the inner compressible member, and a second position out of engagement with the inner compressible member; and a means belonging to the lever or the inner compressible member for retaining the inner compressible member in the compressed state, said means for retaining being disengaged upon movement of the lever from the first position to the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A cartridge in combination with a dispenser for applying medicament to an eye, the dispenser being of the type which is actuated to load a drop of medicament into a drop cavity therein by compression in its longitudinal direction to a compressed position and which is actuated to emit said drop from a nozzle upon subsequent longitudinal expansion from said compressed position under the action of a biasing means, the cartridge comprising:
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a housing retaining the dispenser therein, the housing defining a first aperture for exposing the nozzle of the dispenser; an inner telescoping member slidably received within the housing for compressing the dispenser in its longitudinal direction, the inner telescoping member having a portion thereof projecting to the exterior of the housing through a second aperture defined therein; a means for locking the inner telescoping member in a position where the dispenser is in the compressed position; and a lever for disengaging the means for locking to allow the dispenser to expand from said compressed position to said expanded position by the action of the biasing means. - View Dependent Claims (22, 23)
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Specification