US5164188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biodegradable ocular implants
Assignee: Allergan Inc
•
Filing: 1989-11-22
•
Granted: 1992-11-17
•
Expires: 2009-11-22
Abstract
Abstract Encapsulated agents are employed for introduction into the suprachoroid of an eye for therapeutic purposes. The administration of drugs is controlled and maintained for long periods of time, while ensuring the substantial absence of significant levels outside the site of administration.
Inventors
- 👤 Vernon G. Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:23
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0048; A61K9/0051; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
78 words
A method for treating an eye condition which comprises: introducing into the suprachoroidal space an eye implant incapable of migration from the suprachoroid, said implant comprises from about 1 to about 80 weight % of an active agent selected from at least one of drugs, pharmaceutical agents, and bacterial agents in a pharmacologically acceptable biodegrable polymer which is degraded in the eye, wherein said implant provides an effective dosage of said drug over an extended period of time.
Claim 2
Independent Claim
78 words
A method for treating an eye condition which comprises: introducing into the suprachoroidal space an eye implant incapable of migration from the suprachoroid, said implant comprises from about 1 to about 80 weight % of an active agent selected from at least one of drugs, pharmaceutical agents, and bacterial agents in a pharmacologically acceptable biodegrable polymer which is degraded in the eye, wherein said implant provides an effective dosage of said drug over an extended period of time.
Claim 3
Dependent Claim
12 words
A method according to claim 1, wherein said implant in a plaque.
Claim 4
Dependent Claim
32 words
A method according to claim 2, wherein said plaque has length and width dimensions of about 0.5 to 10 mm×0.5 to 10 mm with a thickness of about 0.25 to 1. mm.
Claim 5
Dependent Claim
18 words
A method according to claim 1, wherein said bacterial agent is selected from acid-fast bacilli or C. parvum.
Claim 6
Dependent Claim
13 words
A method according to claim 1, wherein said polymer is a condensation polymer.
Claim 7
Dependent Claim
12 words
A method according to claim 5, wherein said polymer is a polyester.
Claim 8
Dependent Claim
15 words
A method according to claim 6, wherein said polyester comprises an hydroxyaliphatic carboxylic acid monomer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-17 | 1996-05-18 | 1996-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-17 | 2000-05-18 | 2000-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-17 | 2004-05-18 | 2004-11-17 | $7700.00 | Window Closed / Lapsed |