TWO-PIECE INJECTABLE DRUG DELIVERY DEVICE WITH HEAT-CURED SEAL
First Claim
1. A drug delivery device comprising:
- a core comprising latanoprost or latanoprost acid;
a first sheath at least partially surrounding the core, the first sheath having a first and second end;
a second sheath disposed about an exterior surface of the first sheath, the second sheath having a first and second end; and
a first cap covering the second end of the second sheath,wherein the first cap is permeable to latanoprost or latanoprost acid, and wherein the first cap is adjacent to the second end of the first sheath.
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Accused Products
Abstract
The invention provides a drug delivery device for latanoprost or latanoprost acid. The device has a core of latanoprost or latanoprost acid which is surrounded by an internal and external sheath. The external sheath has a first cap that is permeable to latanoprost or latanoprost acid. The first cap may comprise polyvinyl alcohol (PVA), and the PVA may be heat cured. In certain aspects, there are one or more additional caps on the ends of the sheaths formed from one or more polymers. In certain aspects, one or more portions of the drug delivery device is substantially impermeable to latanoprost or latanoprost acid. In certain aspects, the latanoprost or latanoprost acid elutes through the first cap into a biological environment. The invention further provides methods for manufacturing the drug delivery device.
21 Citations
42 Claims
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1. A drug delivery device comprising:
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a core comprising latanoprost or latanoprost acid; a first sheath at least partially surrounding the core, the first sheath having a first and second end; a second sheath disposed about an exterior surface of the first sheath, the second sheath having a first and second end; and a first cap covering the second end of the second sheath, wherein the first cap is permeable to latanoprost or latanoprost acid, and wherein the first cap is adjacent to the second end of the first sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 33)
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31. A method for manufacturing an injectable drug delivery device comprising:
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providing a first sheath having a first and second end; placing latanoprost or latanoprost acid into an interior region of the first sheath to form a drug core at least partially surrounded by the first sheath; providing a second sheath having a first and second end; and inserting the first sheath into an interior region of the second sheath such that the second sheath at least partially surrounds the first sheath. - View Dependent Claims (32)
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34. A drug delivery device comprising:
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an inner casing comprising a) an inner wall defining a central cavity having a first and second end;
an outer casing comprising b) an outer wall disposed about an exterior surface of the inner wall and c) a first outer cap sealing the outer casing adjacent to the second end; anda drug core comprising latanoprost or latanoprost acid disposed in the central cavity, wherein the first outer cap is permeable to latanoprost or latanoprost acid disposed in the central cavity. - View Dependent Claims (37)
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35. A method for manufacturing a drug delivery device comprising:
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providing an inner casing comprising a) an inner wall defining a central cavity having a first and second end; placing latanoprost or latanoprost acid into the central cavity of the inner casing to form a drug core at least partially surrounded by the inner casing; and inserting the inner casing into an outer casing comprising b) an outer wall disposed about an exterior surface of the inner wall and c) a first outer cap sealing the outer casing adjacent to the second end, wherein the first outer cap is permeable to latanoprost or latanoprost acid in the drug core. - View Dependent Claims (36)
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38. A drug delivery device comprising:
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an inner casing comprising an inner tube having a first and second end; an outer casing slidably engaged with the inner casing, the outer casing comprising an outer tube disposed about the inner tube and a first outer cap sealing an end of the outer casing adjacent to the second end; and a drug core comprising latanoprost or latanoprost acid disposed in the inner tube, wherein the first outer cap is permeable to latanoprost or latanoprost acid disposed in the central cavity. - View Dependent Claims (41)
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39. A method for manufacturing a drug delivery device comprising:
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providing an inner casing comprising an inner tube having a first and second end; placing at least on drug selected from latanoprost and latanoprost acid into the inner tube to form a drug core at least partially surrounded by the inner casing; and slidably engaging an outer casing with the inner casing, the outer casing comprising an outer tube disposed about the inner tube and a first outer cap sealing an end of the outer casing adjacent to the second end, wherein the first outer cap is permeable to latanoprost or latanoprost acid in the drug core. - View Dependent Claims (40)
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42. A drug delivery device comprising:
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an inner casing comprising an inner tube having a first and second end; an outer casing slidably engaged with the inner casing, the outer casing comprising an outer tube disposed about the inner tube and a first outer cap sealing an end of the outer casing adjacent to the second end; and a drug core comprising latanoprost or latanoprost acid disposed in the inner tube, wherein the inner casing and outer casing comprise poly(lactic-co-glycolic acid) (PLGA) and the first outer cap comprises poly(vinyl alcohol) (PVA).
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Specification