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Systems for treating a hollow anatomical structure

  • US 8,043,285 B2
  • Filed: 11/19/2010
  • Issued: 10/25/2011
  • Est. Priority Date: 07/21/2005
  • Status: Active Grant
First Claim
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1. An apparatus for use in treating a hollow anatomical structure (HAS), the apparatus comprising:

  • an elongate member having a distal section and a proximal section, the elongate member being sized and configured for insertion into a HAS through either one of at least two introducer sheaths, a shorter introducer sheath having a shorter sheath length and a longer introducer sheath having a longer sheath length;

    a heating element located on the elongate member and having a heating length;

    wherein the heating element has a distal end and a proximal end and is configured to apply energy along a length of the HAS in consecutive treatment segments of the HAS;

    a plurality of index markings marked on the elongate member;

    wherein the index markings are configured to be movably indexed in a distal to proximal direction by moving the elongate member in the distal to proximal direction to sequentially position the heating element axially along the length of the HAS;

    wherein consecutive index markings are spaced apart by an index length, the index length being less than the heating length and configured to provide overlap of consecutive treated segments of the HAS when the heating element is moved in the distal to proximal direction along the HAS; and

    at least two final markings marked on the elongate member such that no markings similar to the final or index markings are located between the distal-most final marking and the heating element, each of the at least two final markings being marked so as to be visually distinct and different from the plurality of index markings, each of said final markings being spaced proximally from the proximal end of the heating length by at least the shorter sheath length;

    wherein a first final marking of the at least two final markings indicates a first distance from said first final marking to the proximal end of the heating element, the first distance comprising the longer sheath length and a first safety zone distance on the elongate member; and

    wherein a second final marking of the at least two final markings indicates a second distance from said second final marking to the proximal end of the heating element, the second distance comprising the shorter sheath length and a second safety zone distance on the elongate member.

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