×

Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders

  • US 6,685,722 B1
  • Filed: 11/10/1999
  • Issued: 02/03/2004
  • Est. Priority Date: 05/01/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. An embolectomy catheter for removing a blood clot or other such obstructive matter from a blood vessel, the catheter comprising:

  • an elongate flexible catheter body having a proximal end, a distal end, an inner tube, a distal tip attached to a distal end of the inner tube, and a guidewire lumen, a part of which extends longitudinally through the inner tube, the guidewire lumen being sized to receive a guidewire therein and being open on its distal end to permit the guidewire so received to project distally from the distal end of the catheter body;

    a clot removal device having a distal end attached to the inner tube and a proximal end free to slide axially over the inner tube; and

    , an outer tube that is moveable between a distal position wherein it constrains the clot removal device in a collapsed state, and a proximal position wherein the clot removal device is substantially unconstrained and allowed to deploy to a radially expanded state;

    wherein the distal tip defines a proximal mouth for receiving a short length of the outer tube, wherein the distal end of the outer tube is thereby prevented from catching on the clot as the catheter body passes therethrough.

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