Pahlsson, who will be an unrestricted free agent at the end of this season, has five goals and 10 assists in 52 games with the Ducks this season. The Swedish veteran hasn't played since January 31, as he has been battling mononucleosis.
The 31-year-old Pahlsson has recorded 52 goals and 91 assists in 544 career games and is known as a quality face-off guy.
Wisniewski has registered two goals and 11 assists in 31 games with Chicago this season. The 25-year-old has recorded 56 points (13 goals, 43 assists) in 168 career games -- all with the Blackhawks.
Kontiola, 24, has played in 61 games with Rockford of the American Hockey League this season and is leading the club with 53 points on 15 goals and 38 assists. The Finnish centerman was selected by Chicago in the seventh round of the 2004 draft.
The 23-year-old Stephenson has appeared in 44 contests with Iowa and San Antonio of the AHL this season and has compiled four points and 61 penalty minutes. He was originally selected by Phoenix in the second round of the 2004 draft.