Blood-contacting medical device and method

Coating processes – Medical or dental purpose product; parts; subcombinations;... – Particulate or unit-dosage-article base

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Details

427 224, 427 23, 4274071, B05D 302, B05D 138, B05D 102, B05D 118

Patent

active

058209174

ABSTRACT:
A method for making a blood-contacting medical device with improved biocompatibility by applying to the blood-contacting surface an aqueous solution of heparin and then overcoating the heparin with a porous polymer. The inclusion of a porous polymer in intimate contact with a heparin on the device controls the administration of heparin following implantation or other blood contact. The adhesion of the coating and the rate at which the heparin is delivered can be controlled by the selection of an appropriate bioabsorbable or biostable polymer.

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