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DRILL DEVICE AND METHOD FOR FORMING MICROCONDUITS

  • US 20110046626A1
  • Filed: 10/29/2010
  • Published: 02/24/2011
  • Est. Priority Date: 03/25/2003
  • Status: Active Grant
First Claim
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1. A method of entry into the brain cavity when drilling through the skull, which comprises the steps of drilling into a target area, monitoring an electrical impedance of the target area, stopping the drilling into the target area when a change in the electrical impedance is detected, thereby forming a microconduit or opening in the skull having the appropriate depth in the brain cavity.

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