Aspect Medical Systems was a medical devices company founded in 1987 then acquired in 2009 by Covidien. The company pioneered the use of brain monitoring to measure level of consciousness for anesthesia patients in the operating room. After a series of acquisitions, the company's brand name and assets are currently owned by Medtronic, which still produces BIS-branded sensors and monitors.
History
Aspect Medical Systems was founded in 1987 by Nassib G. Chamoun.[1][2]
In October 1996, the FDA cleared the Bispectral Index (BIS) for marketing for use as a direct measure of the effects of anesthetics and sedatives on the brain.[1]
In 1998, the company opened their international headquarters in The Netherlands.[1]