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Devices for maintaining patency of surgically created channels in tissue

  • US 20060135984A1
  • Filed: 01/18/2006
  • Published: 06/22/2006
  • Est. Priority Date: 07/18/2003
  • Status: Active Grant
First Claim
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1. A hole-making catheter for creating and dilating an opening within tissue, the catheter comprising;

  • an elongate shaft having a proximal portion and a distal portion, and at least one lumen extending through the proximal end;

    a nondistensible balloon having an interior in fluid communication with the lumen, the nondistensible balloon located on the distal portion of the elongate shaft,; and

    a piercing member located at the distal portion of the elongate shaft, the piercing member being extendable and retractable within the elongate shaft.

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