Patent ID: 7645261
Filing Date: 2010-01-12
Classification: A61B,A61M,B82Y

Abstract:
1. A disposable apparatus for performing mechanical thrombectomy of dialysis grafts, comprising: an axially-elongated catheter having first and second ends and at least three axially-elongated non-communicating passages therein; a guide wire assembled in a first one of the axially-elongated passages, the guide wire having a distal tip and being rotatable to perform a mechanical thrombectomy procedure; a first balloon positioned on the exterior of the catheter proximate the first catheter end, the interior of the first balloon being in fluid communication with a second one of the axially-elongated passages, the first balloon in an inflated condition having a generally spherical shape and being positioned about the catheter so that the catheter defines an axis of the spherical shape; a second balloon positioned on the exterior of the catheter between the first balloon and the second catheter end, the interior of the second balloon being in fluid communication with a third one of the axially-elongated passages, the second balloon in an inflated condition having an axially elongated, generally cylindrical shape and being positioned about the catheter so that the catheter defines an axis of the cylindrical shape; and a pair of inflation ports in the catheter respectively communicating with the second and third ones of the axially-elongated passages and adapted for connectable communication with a source of pressurized gas for selectably inflating the first and second balloons; wherein rotation of the guide wire breaks up thrombus to perform the thrombectomy procedure in an area distal of the first and second balloons.