Application of a therapeutic substance to a tissue location using an expandable medical device
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United States of America Patent
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Aug 11, 2009
Grant Date -
May 19, 2005
app pub date -
Sep 15, 2004
filing date -
Sep 15, 2003
priority date (Note) -
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Abstract
A non-polymeric or biological coating applied to radially expandable interventional medical devices provides uniform drug distribution and permeation of the coating and any therapeutic agents mixed therewith into a targeted treatment area within the body. The coating is sterile, and is capable of being carried by a sterile medical device to a targeted tissue location within the body following radial expansion. The therapeutic coating transfers off the medical device due in part to a biological attraction with the tissue and in part to a physical transference from the medical device to the targeted tissue location in contact with the medical device. Thus, atraumatic local tissue transference delivery is achieved for uniform therapeutic agent distribution and controlled bio-absorption into the tissue after placement within a patient's body with a non-inflammatory coating.
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