placeCanada – English


Bispectral Index™ (BIS™) monitoring enhances the clinician’s patient-targeted approach to induction, maintenance and emergence. BIS™ technology non-invasively measures and interprets brain wave activity directly related to the effects of anesthetic agents and indicates hypnotic effect through the easy-­to-read BIS™ index.

The BIS™ index may be used as an aid in monitoring the effects of certain anesthetic agents; and its usage with certain anesthetic agents may be associated with a reduction in primary anesthetic use and a reduction in emergence and recovery time.

Use of the BIS™ index for monitoring to help guide anesthetic administration may be associated with the reduction of incidence of awareness with recall in adults during general anesthesia and sedation.


You know us — and our innovations, which have been improving respiratory and monitoring care for over a century.

Watch Video


The BIS™  4-­channel monitor translates the raw EEG data into the easy-­to-­read BIS™ index.

The monitor provides:

  • User-­configurable display
  • Versatile platform for future expandability
  • Four-­channel EEG monitoring
  • Asymmetry Indicator (ASYM)
  • Ability to trend BIS-­Left and BIS-­Right values


BIS™ technology offers the clinician added security for providing specialized care and comfort for their patients, including those who may be more sensitive to the hemodynamic effects of anesthesia.

BIS™ monitoring provides invaluable information about patient status to help clinicians address their unique anesthetic requirements. This may be particularly valuable for:

  • Patients with complex conditions whose status may suddenly or frequently change
  • Patients with cardiovascular conditions
  • Obese patients
  • Trauma patients or others requiring reduced levels of anesthesia

The BIS™ index, one of the Complete Monitor output parameters, may be used as an aid in monitoring the effects of certain anesthetic agents.

BIS™ is a complex monitoring technology intended for use as an adjunct to clinical judgment and training. Clinical judgment should always be used when interpreting BIS™ in conjunction with other available clinical signs. Reliance on BIS™ alone for intraoperative anesthetic management is not recommended. As with any monitored parameter, artifacts and poor signal quality may lead to inappropriate BIS™ values. Potential artifacts may be caused by poor skin contact (high impedance), muscle activity or rigidity, head and body motion, sustained eye movements, improper sensor placement and unusual or excessive electrical interference. BIS™ values should also be interpreted cautiously with certain anesthetic combinations, such as those relying primarily on either ketamine or nitrous oxide/narcotics to produce unconsciousness. Due to limited clinical experience in the following applications, BIS values should be interpreted cautiously in patients with known neurological disorders and those taking other psychoactive medications.