DUBLIN, Ohio--Cardinal Health announced Monday that it will acquire Viasys Healthcare for about $1.5 billion, including the assumption of outstanding debt.

Under the agreement, Cardinal will make a cash offer to acquire all outstanding shares of Viasys common stock for $42.75 per share.

With 2006 revenue of $610 million, Viasys focuses on respiratory care systems used to diagnose and treat pulmonary disease and sleep disorders. The company also manufactures neurological, audio and vascular diagnostics, disposable medical products used in surgical procedures and enteral feeding, orthopedic implant manufacturing and clinical services.

Cardinal said the acquisition would help solidify its presence in the respiratory care market. Additionally, the deal will expand Cardinal's clinical and medical product offerings and supplement its hospital selling organization.

With more than 7,000 hospital customers in 100 countries and 40 percent of its revenue generated from customers outside the U.S., the addition of Conshohocken, Pa.-based Viasys will also bolster the company's international presence, Cardinal said.

"With a strong platform and excellent momentum in our clinical and medical products businesses, we think the timing is ideal to broaden our offering," said R. Kerry Clark, Cardinal Health CEO.

An $80-billion company, Cardinal includes a DME division, manufactures medical and surgical products and distributes pharmaceuticals and medical supplies. The company employs more than 40,000 people on five continents.

The deal is expected to be completed this summer.