Aspect Medical Systems, Inc., which first went public and was later acquired by Covidien, was a global market leader in brain monitoring technology.

At the time of acquisition, the company's Bispectral Index (BIS) technology had been used to assess approximately 34 million patients and was the subject of more than 3,300 published articles and abstracts. As of July 2009, its BIS technology was installed in approximately 74 percent of all U.S. operating rooms.

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Polaris Lead

Terry McGuire