Medical polymer gel

Details Medical polymer gel Medical polymer gel

1997-03-24

1998-06-23

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Matrices

514944, 2523153, 2523154, A61K 910

Patent

active

057702292

ABSTRACT:
A medical polymer gel produced by immobilizing a drug onto a water swelling polymer gel through a cleavable group with the main chain to be cleaved via an enzymatic reaction and a spacer, and a water swelling polymer gel produced by covalently crosslinking a polysaccharide having a carboxyl group within the molecule with a diaminoalkane derivative as the crosslinking reagent. Because the medical polymer gel exerts a drug releasing property depending on the level of an enzyme, the gel can release a therapeutically effective dose of a drug only at a focal lesion generating the enzyme. The medical polymer gel is useful as the structural component of wound dressings, adhesives for biological tissues, adhesion preventing agents, bone reinforcing agents, and drug releasing base materials. Wound dressings comprising the structural material of the water swelling polymer gel of the present invention, can be applied to a patient with wound, burn, and decubitus to promote the healing of the wounds of the patient.

REFERENCES:
patent: 4452892 (1984-06-01), Rosevear
patent: 5658592 (1997-08-01), Tanihara et al.
Glass, Edward J., Advances in Chemistry Series 223, "Polymers in Aqueous Media Performance Through Association", Aug. 30-Sep. 4, 1987.

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