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Sensor assembly for monitoring an infant brain

  • US 20040030258A1
  • Filed: 08/11/2003
  • Published: 02/12/2004
  • Est. Priority Date: 10/09/2000
  • Status: Abandoned Application
First Claim
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1. A sensor assembly adapted for placement on a head of a patient (a neonate or infant having an age in the range of about 20 weeks gestational age to about one year after full term) for monitoring, over an extended collection period, the status of the brain of the patient by at least providing for collection of electroencephalography (EEG) type signals from the brain, characterised in that a) the sensor assembly includes a first and a second flexible strip each connected through a flexible cable to a connector;

  • each strip being comprised of a matrix having a low thickness, each strip having a first surface capable of being applied to the skin of the head and then of conforming to the shape of the head, and b) each flexible strip of the sensor assembly includes at least two flexible electrodes on the first surface, each electrode being connected by flexible wiring through a connecting lead to a connector, and spaced apart so as to be capable of collecting electrical activity from an area likely to exhibit brain injury, and c) each flexible strip of the sensor assembly includes at least one releasable adhesive area, capable of resisting forces tending to dislodge the strip during exposure to a warm humid environment, yet capable of being peeled off after a period, without damage to the skin of the subject, so that the electrode assembly is held in place during the collection period, and d) each flexible strip of the sensor assembly is accompanied by orientation information capable of guiding a person in the process of correctly placing the strip upon the head of the patient so that the strip is placed consistently over an area likely to exhibit brain injury in an intended position and orientation, in a patient of the above range of age or weight.

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