The 28-year-old Meszaros played 38 games this season for the Flyers with five goals and 12 assists. The nine-year veteran's first two seasons with the Flyers were limited by a back injury in 2011-12, Achilles tendon surgery after that season and a shoulder injury in 2012-13.
The Bruins also claimed 30-year-old defenceman Corey Potter off waivers from Edmonton. The six-year veteran has five assists in 16 games this season.
Boston had been seeking a veteran defenceman after Dennis Seidenberg suffered a season-ending knee injury on Dec. 27 against Ottawa. They've also been without defenceman Adam McQuaid since he hurt his leg Jan. 19.
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