Apparatus, System and Method for Neurostimulation by High Frequency Ultrasound

摘要

An apparatus, system, and method for neurostimulation by high frequency ultrasound. In one embodiment, an apparatus includes a pulse generator, an ultrasound transducer coupled to the pulse generator, and an implantable stimulator. The implantable stimulator may include a piezoelectric element configured to convert ultrasound signals from the ultrasound transducer into electrical signals, a rectifier configured to convert alternating current from the piezoelectric element to a monophasic current, a capacitor coupled to the rectifier, and a first electrode and a second electrode coupled to the rectifier and capacitor and configured to transmit the monophasic current to body tissue. In addition, the apparatus may include a current-limiting circuit configured to limit the amount of current transmitted to the body tissue.

主权项

1. A neurostimulator, comprising:
a pulse generator; an ultrasound transducer coupled to the pulse generator; an implantable stimulator, where the implantable stimulator comprises:
a piezoelectric element configured to convert ultrasound signals from the ultrasound transducer into electrical signals;a rectifier configured to convert the electrical signals from the piezoelectric element to a monophasic current;a capacitor coupled to the rectifier;a first electrode and a second electrode coupled to the rectifier and capacitor and configured to transmit the monophasic current to body tissue; and a current-limiting circuit configured to limit the amount of current transmitted to the body tissue.