Drug delivery device
First Claim
Patent Images
1. A drug delivery device comprising:
- a holder made of a material impermeable to passage of a pharmaceutically active agent, and including at least one opening for passage of the active agent therethrough;
a drug core contained in the holder, and including a pharmaceutically active agent; and
a preformed disc made of an expandable material permeable to passage of the active agent, the disc contained in the holder and disposed between the drug core and the at least one opening in the holder, wherein a groove is formed in the holder in the vicinity of the disc.
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Accused Products
Abstract
A drug delivery device for placement in the eye includes a drug core comprising a pharmaceutically active agent, and a holder that holds the drug core. The holder is made of a material impermeable to passage of the active agent and includes an opening for passage of the pharmaceutically agent therethrough to eye tissue. The device includes a layer of material permeable to passage of the active agent. The device further includes a disc of impermeable material disposed between the drug core and the opening in the holder.
31 Citations
20 Claims
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1. A drug delivery device comprising:
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a holder made of a material impermeable to passage of a pharmaceutically active agent, and including at least one opening for passage of the active agent therethrough;
a drug core contained in the holder, and including a pharmaceutically active agent; and
a preformed disc made of an expandable material permeable to passage of the active agent, the disc contained in the holder and disposed between the drug core and the at least one opening in the holder, wherein a groove is formed in the holder in the vicinity of the disc. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A drug delivery device comprising:
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a holder made of a silicone material impermeable to passage of a pharmaceutically active agent, and including at least one opening for passage of the active agent therethrough;
a drug core contained in the holder, and including a pharmaceutically active agent and a matrix material permeable to the active agent;
a preformed disc made of a hydrogel material permeable to passage of the active agent, the disc contained in the holder and disposed between the drug core and the at least one opening in the holder, wherein the disc swells upon exposure to body fluid thereby expanding into a space formed in the holder. - View Dependent Claims (17, 18, 19, 20)
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Specification