Periodontal disease treatment system
First Claim
Patent Images
1. A controlled drug delivery system for placement in a periodontal pocket, comprising:
- (a) a plurality of discrete microparticles, between 10 and 500 microns in diameter, comprising a drug and a polymer containing said drug, wherein when said microparticles are placed in an environment of use, said drug is released at a controlled rate by a combination of diffusion of said drug through said polymer and erosion of said polymer; and
(b) a fluid suspending medium for said microparticles;
said drug delivery system remaining active in the periodontal pocket for a period of between one and thirty days.
3 Assignments
0 Petitions
Accused Products
Abstract
A controlled release drug delivery system for placement in the periodontal pocket, gingival sulcus, tooth socket, wound or other cavity within the mouth. The system incorporates drug-containing microparticles in a fluid carrier medium, and is effective in the environment of use for up to 30 days.
-
Citations
47 Claims
-
1. A controlled drug delivery system for placement in a periodontal pocket, comprising:
-
(a) a plurality of discrete microparticles, between 10 and 500 microns in diameter, comprising a drug and a polymer containing said drug, wherein when said microparticles are placed in an environment of use, said drug is released at a controlled rate by a combination of diffusion of said drug through said polymer and erosion of said polymer; and (b) a fluid suspending medium for said microparticles;
said drug delivery system remaining active in the periodontal pocket for a period of between one and thirty days. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A controlled drug delivery system for placement in a periodontal pocket, comprising:
-
(a) a plurality of discrete microparticles, between 10 and 500 microns in diameter, comprising a drug and a polymer containing said drug, said drug being essentially insoluble in said polymer, wherein when said microparticles are placed in an environment of use, said drug is released at a controlled rate by erosion of said polymer; and (b) a fluid suspending medium for said microparticles;
said drug delivery system remaining active in the periodontal pocket for a period of between one and thirty days. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A controlled drug delivery system for placement in a periodontal pocket, comprising:
-
(a) a plurality of discrete microparticles, between 10 and 500 microns in diameter, comprising at least 15 vol % drug dispersed in a polymer, said drug being essentially insoluble in said polymer, wherein when said microparticles are placed in an environment of use, said drug is released at a controlled rate by leaching of said drug from said polymer; and (b) a fluid suspending medium for said microparticles;
said drug delivery system remaining active in the periodontal pocket for a period of between one and thirty days. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
Specification