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System and method for intraparenchymal drug infusion

  • US 7,794,443 B2
  • Filed: 10/24/2006
  • Issued: 09/14/2010
  • Est. Priority Date: 10/24/2006
  • Status: Active Grant
First Claim
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1. A method of performing an intraparenchymal drug infusion procedure, the method comprising:

  • positioning an infusate exit port of a delivery tube at a target site;

    infusing the target site with the drug by pumping the drug through an infusate pathway formed by the delivery tube;

    monitoring pressure information indicative of an internal pressure of the infusate pathway while infusing the target site;

    reviewing the monitored pressure for possible existence of a rising pressure period, a declining pressure period, and a substantially constant pressure period; and

    evaluating infusate delivery effectiveness, including whether infusate was delivered to the target site and whether a therapeutically effective volume of distribution remains at the target site, based upon the monitored pressure and the review.

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