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BIS™ consciousness-­monitoring technology

  • Monitor displays real-­time EEG as well as continuous and trend BIS™ index values
  • Proven BIS™ index is easy to read and interpret with recommended ranges

BIS™ Extended Use Sensor is made specifically for use in environments such as the ICU.

The BIS™ index, one of the complete monitor output parameters, 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.


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  • The BIS™ extend (extended use) sensor offers:
    • Peel-­and-­stick simplicity
    • Zipprep™ technology
  • BIS™ sensors collect electroencephalograph (EEG) data.
  • BIS™ technology enables simple EEG data collection via a noninvasive sensor applied to the patient’s forehead.


How does our sensor technology work to capture the low-­voltage EEG signal?

First, we use a conductive ink that is printed directly on the surface of the sensor, under the adhesive foam and Zipprep™ technology. This creates an electrode surface that is helpful in picking up the low-­voltage EEG.

Second, the Zipprep™ technology helps clear away the first layer of the epidermis. The mechanical action of pressing on the electrode results in the tines clearing away some of the first layer of dead skin cells, exposing the inner, more electrically conductive layer of skin. The conductive gel within the electrode permeates into this newly exposed area, creating a good electrical pathway between the EEG-­carrying inner layers of skin and the conductive traces within the sensor. The EEG signal is then carried through these traces to the BIS™ monitor.

Third, we include a thin layer of sponge that contains a very precise amount of gel. This gel creates a "bridge" between the forehead and the conductive electrode surface.

These combined components help achieve an optimal environment to acquire and maintain the EEG signal.