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Medtronic says it won stent patent lawsuit

NEW YORK (AP) -- Medical device maker Medtronic Inc. said Wednesday it won a lawsuit over a patent on stent grafts that are used to treat aneurysms in the aorta, the largest artery in the body.

The Minneapolis company said a judge in the Eastern District Court of Virginia ruled in its favor last week, saying Medtronic's method of making stent grafts did not violate a patent that belongs to W.L. Gore & Associates, a privately held company based in Newark, Del.

Stents are mesh-metal tubes that are placed into arteries to prop them open after they have been surgically cleared of fatty plaque.

Shares of Medtronic picked up 67 cents to $37.98 in afternoon trading.