St Jude Medical is set to buy AGA Medical Holdings Inc, which is backed by private equity firm Welsh, Carson, Anderson and Stowe, in a deal worth more than $1 billion in stock and cash. At $20.80 a share, the deal values AGA Medical at a 41 percent premium on Friday’s closing price. AGA went public in October at $14.50 a share. St Jude said it expected to close the deal by the end of the year.

For $60 million, St. Paul, Minn.-based medical device company St. Jude Medical Signs has acquired a 19% ownership stake in CardioMEMS with an exclusive option to buy the Atlanta-based privately held company for an additional $375 million if certain commercial milestones are met. PRESS RELEASE St. Jude Medical, Inc. (NYSE: STJ), a global medical device [...]

Micell Technologies, a Raleigh, N.C.-based developer of interventional cardiology systems, has raised $15 million in private equity funding from St. Jude Medical Inc. It had previously raised VC funding from Invemed Catalyst Fund and the GE Pension Plan.