Sustained-release drug formulations for implantation

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C424S423000, C424S489000

Reexamination Certificate

active

10089694

ABSTRACT:
The present invention relates to a formulation for implantation having a novel constitution, which accomplishes controlled releases of active ingredients. The formulation comprises one of combinations (a), (b) and (c), as well as a carrier comprising a hydrophobic polymer, wherein the particle combination is dispersed into the carrier: (a) particles comprising an active ingredient, particles comprising a carbonate, and particles comprising a substance which is reacted with the carbonate in an aqueous solution to generate carbon dioxide (substance such as an acid); (b) particles comprising an active ingredient and a carbonate, and particles comprising a substance such as an acid; and (c) particles comprising a carbonate, and particles comprising an active ingredient and a substance such as an acid.

REFERENCES:
patent: 3279996 (1966-10-01), Long et al.
patent: 4191741 (1980-03-01), Hudson et al.
patent: 4331651 (1982-05-01), Reul et al.
patent: 4346709 (1982-08-01), Schmitt
patent: 4675189 (1987-06-01), Kent et al.
patent: 4985253 (1991-01-01), Fujioka et al.
patent: 5324519 (1994-06-01), Dunn et al.
patent: 5417985 (1995-05-01), Coutel et al.
patent: 5851547 (1998-12-01), Fujioka et al.
patent: 5955143 (1999-09-01), Wheatley et al.
patent: 6120789 (2000-09-01), Dunn
patent: 6210715 (2001-04-01), Starling et al.
patent: 2818892 (1998-08-01), None
Robertson et al., CONTRACEPTION, vol. 27, No. 5, pp. 483-495, (1983).
Pfister et al., Proceed. Intern, Symp. Control. Rel. Bioact. Mater., vol. 12, pp. 145-146, (1985).
Pfister et al., Proceed. Intern, Symp. Control. Rel. Bioact. Mater., vol. 14, pp. 223-224, (1987).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Sustained-release drug formulations for implantation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sustained-release drug formulations for implantation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sustained-release drug formulations for implantation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3728121

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.