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Helical embolization coil

  • US 5,797,953 A
  • Filed: 02/23/1996
  • Issued: 08/25/1998
  • Est. Priority Date: 03/18/1994
  • Status: Expired due to Term
First Claim
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1. An embolization coil (10) comprising:

  • a continuous wire strand (11) wound into a longitudinally extending coil (12) having a plurality of tightly spaced turns (13), said longitudinally extending coil wound into a conically helically shaped coil (15) having a plurality of radially expanding turns (16), said radially expanding turns longitudinally overlapping each other, whereby said radially expanding turns longitudinally contact each other in response to blood flowing therethrough to occlude a vessel in which the embolization coil is positioned.

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