Methods and Devices for Removal of Thromboembolic Material

摘要

Methods and devices to remove thromboembolic material from the human body using rotational energy and aspiration are disclosed. A thromboembolic removal system includes an extraction device and drive unit. The extraction device is introduced to the treatment area and activated by the drive unit to separate, break apart, loosen or soften thromboembolic material and to facilitate its aspiration outside the patient.

主权项

1. A method for removing thromboembolic material from a patient using an extraction device, the method comprising the steps of:
Identifying the treatment location of a thromboembolic material to be removed; providing an extraction device having an aspiration catheter and a rotational member; positioning the aspiration catheter at the treatment location proximally to thromboembolic material; inserting the rotational member into the aspiration catheter, the rotational member comprising an elongate element having a distal tip positioned adjacent to the distal end of the aspiration catheter; activating aspiration and rotation of the rotational member to draw thromboembolic material into and through a lumen of the aspiration catheter, and outside the patient; wherein the rotational member traverses concomitant bends as the aspiration catheter during introduction to the treatment area and during the removal of thromboembolic material.