Shares of Possis Medical Inc. of Coon Rapids jumped nearly 10 percent Wednesday after the U.S. Food and Drug Administration approved the use of its AngioJet Xpeedior catheter to remove blood clots from legs. Possis shares closed at $12.51, up $1.10, after hitting $13.25 earlier in the day. More than 500,000 shares changed hands, about 12 times the average daily volume. The share price broke