ACTIVATABLE FOAM EXPANDABLE IMPLANTABLE MEDICAL DEVICE AND METHOD OF USE

摘要

A medial device such as a vascular occlusive device which includes a suppo rt structure and a bioactive expansible coating disposed on the support structu re and an outer barrier coating which serves to prevent a reaction between the bioacti ve expansible foam coating and bodily fluids until the outer barrier is activated and removed by applying an external agent to the outer barrier thereby permitting expansion of the bioactive foam coating.