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.
Obviously a lot happened in a short period of time. At the end of the day, considering everything I went through, I really felt close to my teammates and I really feel like what we accomplished, I know we didn't win it all. ... I'm really proud of how we got there and what we did once we got there.
— Rangers forward Martin St. Louis to Jim Cerny of BlueshirtsUnited.com