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Echogenic spacers and strands

  • US 7,878,964 B1
  • Filed: 09/07/2006
  • Issued: 02/01/2011
  • Est. Priority Date: 09/07/2006
  • Status: Expired due to Fees
First Claim
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1. An apparatus adapted to separate treatment seeds for use in brachytherapy from one another, the apparatus comprising:

  • a spacer having an axial length, the spacer including at least two strings twisted together to define an outer surface and an inner surface of the spacer; and

    a chamber within the inner surface having a generally helical shape defined by the two or more strings extending along at least a portion of the axial length, the chamber adapted to improve ultrasound visibility.

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