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Torsionally compensated guidewire

  • US 6,527,732 B1
  • Filed: 10/17/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 10/17/2000
  • Status: Expired due to Term
First Claim
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1. A guidewire for use in tortuous regions of a vasculature, comprising:

  • a core having a proximal region having an outside diameter and a distal region;

    a coil attached to the distal region, the coil having an outside diameter, a proximal end, a distal end and a length extending between the proximal end and the distal end; and

    the coil and the distal region being sized to fit within tortuous regions of the vasculature;

    whereby, the ratio of the core proximal region outside diameter to the coil outside diameter is at least 1.4 to 1 to optimize torsional efficiency of the guidewire when the guidewire is used within the tortuous regions of the vasculature.

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