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Methods and devices for applying energy to bodily tissues

  • US 8,968,287 B2
  • Filed: 10/21/2009
  • Issued: 03/03/2015
  • Est. Priority Date: 10/21/2008
  • Status: Active Grant
First Claim
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1. A medical device adapted to be coupled to a microwave energy source for applying microwave energy to tissue, the medical device comprising:

  • a transmission line having a shielding element;

    a microwave antenna configured to apply microwave energy to tissue, the antenna comprising a radiating member operatively coupled to the microwave energy source via the transmission line, an antenna dielectric and a shaping member electrically coupled to the shielding element, where the shaping member is electrically conductive; and

    where the radiating member comprises a first profile such that application of microwave energy by the radiating member alone would result in a first-unshaped microwave energy field, and where the shaping element comprises a second profile such that the shaping element couples to the microwave energy to alter the first unshaped microwave energy field into a second shaped microwave energy field extending volumetrically around the antenna.

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