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Coaxial bi-directional catheter

  • US 10,071,224 B2
  • Filed: 09/04/2015
  • Issued: 09/11/2018
  • Est. Priority Date: 11/10/2012
  • Status: Active Grant
First Claim
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1. A deflectable catheter comprising:

  • an outer member having a proximal portion and a distal portion;

    an inner member having a proximal portion and a distal portion, the inner member positioned coaxially within the outer member, the inner member and outer member relatively movable to effect deflection of a tip of the catheter;

    a column member connected to the inner member;

    a coil positioned over the column member;

    a first stop at the proximal end of the coil configured to limit either one or both of axial proximal movement of the inner member and distal movement of the outer member to enable deflection of the tip in a first direction; and

    a second stop configured to limit either one or both of axial distal movement of the inner member and proximal movement of the outer member to enable deflection of the tip in a second direction different than the first direction, the second stop spaced axially from the first stop;

    wherein the inner member is rotatable relative to the outer member and the column member turns with the inner member.

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