Drug – bio-affecting and body treating compositions – Designated organic nonactive ingredient containing other... – Carbohydrate or lignin – or derivative
Patent
1999-02-18
2000-10-17
Kunz, Gary L.
Drug, bio-affecting and body treating compositions
Designated organic nonactive ingredient containing other...
Carbohydrate or lignin, or derivative
514 54, 514 56, 514 57, 5361231, A61K 31715, A61K 4700
Patent
active
061333255
ABSTRACT:
The present invention relates to improved methods for making and using-bioadhesive, bioresorbable, anti-adhesion compositions made of intermacromolecular complexes of carboxyl-containing polysaccharides and polyethers, and to the resulting compositions. The polymers are associated with each other, and are then either dried or are used as fluids. Bioresorbable, bioadhesive, anti-adhesion compositions are useful in surgery to prevent the formation of post-surgical adhesions. The compositions are designed to breakdown in-vivo, and thus be removed from the body. Membranes are inserted during surgery either dry or optionally after conditioning in aqueous solutions. The anti-adhesion, bioadhesive, bioresorptive, antithrombogenic and physical properties of such membranes can be varied as needed by carefully adjusting the pH of the polymer casting solutions, polysaccharide composition, the polyether composition, or by conditioning the membranes prior to surgical use. Bi- or multi-layered membranes can be made and used to provide further control over the physical and biological properties of antiadhesion membranes. Antiadhesion compositions may also be used to deliver drugs to the surgical site and release them locally.
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Blackmore John M.
Schwartz Herbert E.
FzioMed, Inc.
Kunz Gary L.
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