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Coil arrangement for electromagnetic tracker method and system

  • US 7,573,258 B2
  • Filed: 01/18/2007
  • Issued: 08/11/2009
  • Est. Priority Date: 01/18/2007
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic coil arrangement, comprising:

  • a plurality of modular units, wherein each modular unit of the plurality of modular units includes;

    a plurality of electromagnetic sensors located about the periphery of a region; and

    at least one center electromagnetic sensor located at or near the center of the region;

    wherein the plurality of electromagnetic sensors and the at least one center electromagnetic sensor are located in a single plane; and

    wherein each modular unit is configured to be selectively removed from or added to other modular units of the plurality of modular units to form an electromagnetic tracking array located in a single plane adjacent a volume of interest and to facilitate variation of at least one of the size or the shape of the electromagnetic tracking array.

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