Patent ID: 8366620

Claim:
A method for delivering ultrasound energy to a patient's intracranial space, the method comprising: forming at least one hole in the patient's skull to access a target location; placing an introducer device into the at least one hole to a treatment location within the target location; advancing at least one ultrasound device having a distal portion through the introducer device, wherein the distal portion of the ultrasound device contains at least one transducer to allow transmission of ultrasound, and the distal portion can be moved to various locations within the intracranial space; positioning the distal portion at a selected location within the intracranial space; transmitting ultrasound energy at frequencies between 10 KHz and 10 MHz from the ultrasound device for therapeutic treatment; and transmitting and directing the ultrasound energy to a blood clot in the patient's brain at the target location that resides in an intracranial space of the patient's brain, wherein the blood clot is located outside a blood vessel.