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Multi-tip steerable catheter

  • US 7,412,274 B2
  • Filed: 12/30/2005
  • Issued: 08/12/2008
  • Est. Priority Date: 10/30/2002
  • Status: Expired due to Fees
First Claim
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1. A catheter comprising:

  • an elongated catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough;

    a control handle attached to the proximal end of the catheter body;

    a mapping assembly mounted at a junction at the distal end of the catheter body and comprising at least two elongated flexible spines, each spine having a proximal end attached at or near the distal end of the catheter body and a free distal end, wherein each spine carries at least one electrode along its length, each spine further comprising a support member having shape memory; and

    at least two spine puller wires, each spine puller wire corresponding to one of the at least two spines, wherein each spine puller wire has a proximal end anchored in the handle and a distal end anchored at or near the distal end of its corresponding spine such that, in use, longitudinal movement of a spine puller wire relative to the catheter body results in deflection of the spine to which the spine puller wire is anchored.

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