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CYLINDRICAL BANDSTOP FILTERS FOR MEDICAL LEAD SYSTEMS

  • US 20080116997A1
  • Filed: 11/21/2007
  • Published: 05/22/2008
  • Est. Priority Date: 04/13/2001
  • Status: Active Grant
First Claim
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1. A medical lead bandstop filter for attenuating current flow through a lead wire at a selected frequency, comprising:

  • a tubular capacitor having a first electrode and a second electrode; and

    a generally cylindrical inductor attached in series at an end of the capacitor, the inductor including a winding having a first end conductively coupled to the first electrode and a second end conductively coupled to the second electrode so as to place the capacitor and the inductor electrically in parallel with one another,wherein values of capacitance and inductance are selected such that the bandstop filter is resonant at the selected frequency.

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