Factbox: M&A picking up in U.S. medical device sector

(Reuters) - M&A activity has been picking up in the U.S. medical device sector given some attractive valuations.

Following are some recent deals in the sector.

Nov 22 - Medical device maker Medtronic Inc (MDT.N) agreed to buy privately-held Ardian Inc, a developer of a new catheter-based therapy to treat high blood pressure and related conditions, for $800 million.

Oct 28 - Stryker Corp (SYK.N) said it will buy Boston Scientific Corp's (BSX.N) business that makes devices used to treat stroke, aneurysm and other vascular conditions in the brain for $1.5 billion in cash to diversify its products as its orthopedics business slows.

Oct 18 - St Jude Medical Inc (STJ.N) will buy AGA Medical Holdings Inc, a maker of devices for structural heart defects and vascular problems, for more than $1 billion in cash and stock.

Aug 17 - Medtronic agreed to buy orthopedic products maker Osteotech for about $123 million in its second acquisition in about four months, adding to its spinal and biologics business.

July 12 - Johnson & Johnson (JNJ.N) said it will buy Micrus Endovascular Corp for about $480 million to expand its portfolio of medical devices that treat and prevent stroke.

June 16 - Healthcare products company Covidien Plc (COV.N) agreed to buy medical device maker Somanetics Corp for almost $300 million in cash, to gain access to Somanetics' non-invasive patient monitor that measures blood oxygen levels.

June 1 - Covidien said it plans to buy ev3 Inc for $2.6 billion to boost its business in stents and other vascular devices, underscoring the favorable deal climate in the medical technology industry.

May 13 - Medical device maker Merit Medical Systems Inc (MMSI.O) said it will acquire BioSphere Medical Inc in an all-cash deal worth around $96 million, to obtain a platform for therapeutic technologies.

May 5 - CR Bard (BCR.N) agreed to buy device maker SenoRx for about $213 million in cash to gain access to devices used to treat breast cancer.

(Compiled by Shravya Jain and Anand Basu in Bangalore)