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Steerable medical device

  • US 5,480,382 A
  • Filed: 09/02/1994
  • Issued: 01/02/1996
  • Est. Priority Date: 01/09/1989
  • Status: Expired due to Term
First Claim
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1. A steerable guidewire for percutaneous transluminal insertion into the vascular system and controlled negotiation of branches and turns therein, comprisingan elongated tubular support structure having proximal and distal ends, at least the distal portion of said support structure comprising a spring coil;

  • a movable pull wire extending axially through said support structure;

    a flexible deflection ribbon, the distal end of said deflection ribbon being attached directly to said pull wire and the proximal end of said deflection ribbon being attached directly to said spring coil;

    whereby axial movement of the pull wire in a proximal direction relative to the support structure causes lateral deflection of said pull wire and coil spring distally of the point at which the deflection ribbon is attached to the coil spring.

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