Device for Ophthalmic Drug Delivery
First Claim
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1. An ophthalmic drug delivery device, comprising:
- a body having a plunger chamber, a first actuation chamber, and a second actuation chamber;
a plunger assembly having a first sealing member slidably disposed within said plunger chamber;
a first actuation assembly having a first contact member disposed in said plunger chamber, a second sealing member slidably disposed in said first actuation chamber, and a spring member disposed between said first sealing member and said first contact member;
a second actuation assembly having a second contact member disposed in said plunger chamber and a third sealing member slidably disposed in said second actuation chamber; and
a cannula fluidly coupled to said first actuation chamber and said second actuation chamber.
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Accused Products
Abstract
An ophthalmic drug delivery device having two actuation assemblies for dispensing incompatible dosage forms and facilitating the prevention of dosage form reflux.
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Citations
11 Claims
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1. An ophthalmic drug delivery device, comprising:
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a body having a plunger chamber, a first actuation chamber, and a second actuation chamber;
a plunger assembly having a first sealing member slidably disposed within said plunger chamber;
a first actuation assembly having a first contact member disposed in said plunger chamber, a second sealing member slidably disposed in said first actuation chamber, and a spring member disposed between said first sealing member and said first contact member;
a second actuation assembly having a second contact member disposed in said plunger chamber and a third sealing member slidably disposed in said second actuation chamber; and
a cannula fluidly coupled to said first actuation chamber and said second actuation chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An ophthalmic drug delivery device, comprising:
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a body having a first actuation chamber and a second actuation chamber;
a first actuation assembly having a first sealing member slidably disposed in said first actuation chamber;
a second actuation assembly having a second sealing member slidably disposed in said second actuation chamber;
a plunger assembly for actuating said first actuation assembly independently of said second actuation assembly;
a cannula fluidly coupled to said first actuation chamber and said second actuation chamber, said cannula comprising a distal portion having a radius of curvature substantially equal to a radius of curvature of a globe of a human eye;
a first dosage form disposed in said first actuation chamber between said first sealing member and said cannula, said first dosage form comprising an ophthalmically acceptable pharmaceutically active agent; and
a second dosage form disposed in said second actuation chamber between said second sealing member and said cannula, wherein said second dosage form is for preventing reflux of said first dosage form after dispensing into an eye. - View Dependent Claims (11)
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Specification