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Devices, systems, and methods for transeptal atrial puncture using an engagement catheter platform

  • US 8,540,674 B2
  • Filed: 04/11/2011
  • Issued: 09/24/2013
  • Est. Priority Date: 04/27/2007
  • Status: Active Grant
First Claim
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1. A multichannel system for engaging a tissue, the system comprising:

  • an engagement catheter comprising a proximal end and a distal end, and defining a first lumen extending between the proximal end and the distal end;

    an inducer sheath having a proximal portion and a distal portion, and defining a lumen extending therethrough, the inducer sheath configured for insertion into the first lumen of the engagement catheter;

    a dilator defining a first channel and a second channel extending therethrough and a tapered tip at a distal end of the dilator, the dilator sized and shaped for insertion into the lumen of the inducer sheath; and

    a needle device having a needle tip, the needle device capable of insertion into the first channel of the dilator, wherein the needle tip is capable of puncturing a tissue positioned at or near the distal end of the dilator to form a mammalian tissue aperture, wherein the tapered tip of the dilator is configured for insertion of the tapered tip into the mammalian tissue aperture formed using the needle tip.

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