Patent ID: 9629654
Date: 2017-04-25
CPC Classifications: A61B

Claim:
1. Thrombus removal apparatus including a catheter having a distal end, a proximal end and an internal lumen; a solenoid coil of conductive material adapted to be positioned within an endoluminal passage and located at or proximate the distal end of the catheter; electrical couplings being connected to the coil; and a piercing element disposed in the internal lumen residing at least partially within the solenoid coil at the distal end of the catheter; a distal portion of the piercing element being movable in the catheter by interaction of a proximal portion of the piercing element with an electromagnetic field induced by application of electrical energy to the solenoid coil; and including a restriction device coupled to the piercing element and extending proximally from a proximal end of the piercing element to be coupled to the catheter or other part of the apparatus, the restriction device allowing limited distal movement of the piercing element in the catheter and being configured to retain at least a portion of the piercing element within the solenoid coil.