FRANKFURT -- Chemicals and pharmaceuticals giant Bayer (IW 1000/88) said Monday it has agreed to buy US women's healthcare specialist Conceptus for $1.1 billion.

"Bayer intends to broaden its portfolio in the field of contraception.  Bayer HealthCare LLC has therefore signed a merger agreement with Conceptus, Inc.," Bayer said..

California-based Conceptus developed the Essure procedure, a non-surgical permanent birth control method.

"With this acquisition, Bayer will be able to offer a complete range of short-term, long-term and permanent contraceptive choices for women," the German company said.

Bayer would launch a public tender offer "within the next ten business days to acquire all shares in Conceptus."

The deal was subject to anti-trust approval in the U.S. and was expected by mid 2013, Bayer said.

Copyright Agence France-Presse, 2013