Patent ID: 7413556
Filing Date: 2008-08-19
Classification: A61B,A61M

Abstract:
1. A method for treating a clot in a blood vessel, the method comprising: advancing a guidewire at least partially through a clot, advancing a sheath having a utility lumen, a distal energy delivery section, and a drug delivery member over the guidewire such that at least a portion of the distal energy delivery section is located in the clot, withdrawing the guidewire from the utility lumen, when at least a portion of the distal energy delivery section is located in the clot, inserting an elongated body having at least one ultrasound element into the utility lumen defined by the sheath, such that the at least one ultrasound element is positioned at least partially within the distal energy delivery section, abutting a proximal stop portion of the elongated body against a proximal portion of the sheath, wherein the proximal stop portion comprises a conically-shaped portion of the elongated body, at least a portion of which has a larger diameter than an inner diameter of the utility lumen, delivering a drug solution to the clot through the drug delivery member, delivering ultrasound energy to the clot, and moving the elongated body relative to the sheath to enhance an effect of the ultrasonic energy.