Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1995-06-06
1997-07-29
Kishore, Gollamudi S.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424422, 424423, 424426, 424484, 4284022, A61K 9127
Patent
active
056519826
ABSTRACT:
The present invention describes a biologically compatible bioadhesive sealant composition comprising fibrin glue and liposomes for use in mammals, including humans. Fibrin glue of the invention comprises fibrinogen and thrombin which are mixed together in various modes with liposomes and applied to a site of injury, to a wound, or to a surgical or nonsurgical incision or opening. In accordance with the invention, the liposomes are embedded within the fibrin glue after coagulation has occurred, and may release bioactive substances contained within their aqueous interiors to promote healing and protection during the recovery process. The bioadhesive composition of the invention promises to maintain hemostasis after surgeries and improves upon existing glues or gel formulations due to its complete biological compatibility, its formation in situ, and its provision of bioactive therapeutics via entrapped liposomes directly to the site. Long-lasting biophysical and biomechanical properties as well as therapeutic value are imparted to the fibrin glue components by the liposome component of the composition. The biocompatible fibrin glue and liposome composition is also amenable for fabrication into films, coatings, or membranes for in vitro and in vivo uses.
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Kishore Gollamudi S.
New York Blood Center Inc.
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