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Direct access atherectomy devices and methods of use

  • US 8,551,112 B2
  • Filed: 06/25/2012
  • Issued: 10/08/2013
  • Est. Priority Date: 01/14/2002
  • Status: Expired due to Term
First Claim
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1. A device for accessing the interior of a blood vessel from the exterior thereof and for removing an atheroma from the interior of a blood vessel, comprising:

  • a cannula system having a first lumen that extends from a proximal end outside of the blood vessel to a first distal port positionable in the interior of the blood vessel;

    a second lumen that extends from a proximal end outside of the blood vessel to a second distal port positional in the interior of the blood vessel;

    a third lumen that extends from a proximal end outside of the blood vessel to a third distal port positionable in the interior of the blood vessel;

    a filter insertable through the first lumen so as to extend through the first distal port into the interior of the blood vessel; and

    an atherectomy catheter insertable through the second lumen so as to extend through the second distal port into the interior of the blood vessel, the atherectomy catheter comprising;

    a tubular sheath having an open distal end and a lumen extending from a proximal end to the open distal end; and

    an elongate member extending through the lumen of the sheath and having a distal end terminating in an atheroma removal element.

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