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Apparatus and methods for catheter steerability

  • US 9,039,676 B2
  • Filed: 06/08/2010
  • Issued: 05/26/2015
  • Est. Priority Date: 06/11/2009
  • Status: Active Grant
First Claim
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1. A catheter assembly, comprising:

  • a first shaft member having a plurality of longitudinally spaced apart first ring members that are interconnected with a longitudinally extending first spine member;

    a second shaft member positioned within the first shaft member and connected to a distal end portion of the first shaft member, the second shaft member having a plurality of longitudinally spaced apart second ring members that are interconnected with a longitudinally extending second spine member, wherein the second shaft member is operable by applying an actuation force to the second shaft member only in a longitudinal direction, which moves at least portions of the first ring members longitudinally relative to each other to bend the first shaft member.

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