As Lomberg chased the puck into the offensive zone midway through the second period, Raanta came out of his net to make a play, only to have the Panthers forward collide with him at full speed. Raanta laid facedown on the ice afterward before leaving the game.
Lomberg, who was a late addition to the lineup after Aleksander Barkov was held out with a lower-body injury, received a five-minute major and a game misconduct on the play.
Raanta entered the game in relief to start the second period after starting goaltender Frederik Andersen allowed four goals on 15 shots in the first. Andersen came back to finish the game after Raanta left.
The Hurricanes signed Raanta to a two-year, $4-million deal in August. The 32-year-old netminder had previous stints with the Arizona Coyotes, New York Rangers and Chicago Blackhawks. This season, he's posted a .900 save percentage in two appearances as backup to the red-hot Andersen.