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Expandable brachytherapy device

  • US 8,690,746 B2
  • Filed: 06/29/2009
  • Issued: 04/08/2014
  • Est. Priority Date: 11/05/2004
  • Status: Active Grant
First Claim
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1. A brachytherapy treatment apparatus for treating tissue surrounding a cavity within a body, comprising:

  • an elongate body comprising a proximal end and a distal end configured for introduction into the cavity within the body;

    a plurality of elongate tubes on the distal end comprising source lumens for receiving a source of radiation, the elongate tubes being movable from an unexpanded state for introduction into the cavity within the body, and an expanded state, thereby positioning at least a portion of the source lumens closely adjacent to tissue to be treated;

    a radiation source introducible into the source lumens for delivering radiation to the tissue to be treated, andan outer tube associated with the elongate body, the entire outer tube being movable in a direction parallel to a longitudinal axis of the elongate body for causing the elongate tubes to move from the unexpanded state to the expanded state.

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