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Localization device with anchoring barbs

  • US 6,482,178 B1
  • Filed: 05/08/2000
  • Issued: 11/19/2002
  • Est. Priority Date: 05/21/1999
  • Status: Expired due to Term
First Claim
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1. A localization device (10) comprising:

  • an outer needle cannula (11) having a distal end (20);

    a plurality of anchoring wires (12) comprising a superelastic material, the anchoring wires further having distal portions (14) extending laterally outward while in the unstressed state to form barbs (15) capable of engaging tissue; and

    a sleeve cannula (13) to constrain the distal portions of the anchoring wires into a substantially straight configuration, the sleeve cannula slidably disposed within the outer needle cannula, the distal portions of the anchoring wires extending beyond the distal end of the sleeve cannula and the distal end of the outer needle cannula in the deployed condition.

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