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Torsional guide wire with attenuated diameter

  • US 4,619,274 A
  • Filed: 04/18/1985
  • Issued: 10/28/1986
  • Est. Priority Date: 04/18/1985
  • Status: Expired due to Term
First Claim
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1. In a guide wire having a progressively attenuated diameter, an elongated core element having proximal and distal ends and having a decreasing cross sectional area in a direction towards the distal end, a coil carried by, surrounding and secured to said core element, said coil having proximal and distal ends, said coil having a diameter which decreases in a direction towards the distal end, said coil being formed of a wire which has a diameter which decreases from one end to the other end and which is wound in a helix so that the larger diameter wire begins in a region closer to the proximal end and the smaller diameter wire ends in a region closer to the distal end.

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