CareFusion will be purchased by Becton, Dickinson & Co for $12.2 billion, the companies announced Sunday.

The deal, expected to close in the first half of next year, would be the second biggest purchase of a life-science company in the Sand Diego region. The largest was the sale of Life Technologies in Carlsbad to Thermo Fisher Scientific, officially concluded in February for $13.6 billion.

CareFusion’s purchase also marks the latest in a wave of consolidation in the medical technology sector, as companies seek greater efficiency in the healthcare industry.