×

High capacity debulking catheter with razor edge cutting window

  • US 8,328,829 B2
  • Filed: 11/02/2007
  • Issued: 12/11/2012
  • Est. Priority Date: 08/19/1999
  • Status: Active Grant
First Claim
Patent Images

1. A catheter comprising:

  • a flexible tube comprising a proximal end and a distal end;

    said flexible tube having dimensions and flexibility compatible with migration through at least some arteries or veins or other body lumens of a living mammal;

    a catheter head with dimensions also compatible with migration through at least some arteries or veins or other body lumens of a living mammal;

    said catheter head comprising a substantially rigid housing coupled to the distal end of said flexible tube;

    said rigid housing comprising at least a window to the space outside said housing that also opens into a hollow inner portion of said housing;

    at least one edge of said window comprising a blade with at least one cutting edge facing in the distal direction of said catheter;

    a moveable plunger disposed in the hollow portion of said rigid housing, the moveable plunger comprising a plug and a rotatable shaft having a helical screw that moves shaved material proximally upon rotation of the shaft;

    wherein said catheter contains a mechanism to allow an operator of said catheter to adjust said plunger to open or close said window;

    wherein said plunger can be powered to rotate; and

    wherein said plug has a cutting edge along the circumference of the plug that faces in the proximal direction of said catheter.

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