×

Removing obstructive material from body lumens

  • US 9,855,067 B2
  • Filed: 01/08/2015
  • Issued: 01/02/2018
  • Est. Priority Date: 06/08/2008
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus for removing material within a body lumen, the apparatus comprising:

  • an elongate tubular member including a proximal end, a distal end sized for introduction into a body lumen, and an aspiration lumen extending between the proximal and distal ends;

    a guide member including an orifice within the aspiration lumen at a proximal end of the guide member, a tapered distal tip distally extending from the distal end of the elongate tubular member at a distal end of the guide member, and a track lumen from the tapered distal tip through the orifice within the aspiration lumen, the guide member defining a track from the tapered distal tip to a distal end of the orifice; and

    an obstruction clearing device comprising a core wire slidable within the track lumen and one or more lumen clearing elements deployable from the tapered distal tip of the guide member when the core wire is advanced relative to the guide member,the lumen clearing elements comprising an expandable structure that is expanded from a contracted condition within the guide member to an expanded condition when deployed from the guide member for engaging material within a body lumen,the expandable structure directable proximally along the track in the expanded condition when the core wire is subsequently retracted relative to the guide member for compressing the one or more lumen clearing elements when the one or more lumen clearing elements contact the orifice and drawing the one or more lumen clearing elements and any captured material into the aspiration lumen of the elongate tubular member.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×