MINNEAPOLIS--(BUSINESS WIRE)--Possis Medical, Inc. (NASDAQ:POSS) a developer, manufacturer and marketer of pioneering medical devices for the cardiovascular and vascular treatment markets, today announced the first human use of its GuardDOG® Occlusion Guidewire. Designed to control blood flow through blood vessels during peripheral endovascular procedures, GuardDOG is the industry’s first occlusion system to offer a 0.035”-based guidewire with a CO2-filled occlusion balloon.