Nerve stimulator for use with a mobile device
Devices, systems and methods are disclosed for treating seizures, such as epileptic seizures, by electrical non-invasive stimulation of a nerve, such as the vagus nerve. A stimulator comprises a contact surface, such as an electrode, for contacting an outer skin surface of a patient. The stimulator is configured for coupling to a mobile device configured to receive a wireless signal. The stimulator is configured to transmit the electrical impulse through the contact surface and the outer skin surface sufficient to modulate a nerve within a patient and to ameliorate one or more symptoms of a seizure in the patient.
1. A system for treating a patient suffering from seizures, the system comprising:
a stimulator having a contact surface for contacting an outer skin surface of a patient and configured for wireless coupling to a mobile device and configured to receive from the mobile device a wireless signal that includes an electrical stimulation signal comprising at least one electrical impulse sufficient to modulate a nerve within a patient and to ameliorate one or more symptoms of a seizure in the patient; and
wherein the stimulator is configured to transmit the electrical impulse through the contact surface and the outer skin surface.
2. The system of claim 1 , wherein the seizure is an epileptic seizure.
3. The system of claim 2 , wherein the mobile device is a mobile phone and the stimulator wirelessly couples to the mobile phone.
4. The system of claim 2 , wherein the contact surface comprises an electrode, the system further comprising a pulse generator configured for coupling to an energy source within the mobile device, wherein the pulse generator generates the electrical impulse.
5. The system of claim 4 , further comprising a software program configured for wireless downloading onto the mobile phone for transmitting parameters of the electrical impulse to the pulse generator.
6. The system of claim 5 , wherein the software program includes data and the pulse generator is configured to receive the data from the mobile device, the data comprising a therapy regimen for treating the medical condition in the patient.
7. The system of claim 5 , wherein the software program is configured to modulate a property of the electrical impulse.
8. The system of claim 5 , wherein the contact surface includes an electrically conductive material, wherein the system further comprises a filter coupled in series between the energy source and the contact surface for filtering a high frequency component of the electric current.
9. The system of claim 1 , wherein the electrical impulse comprises bursts of pulses having a frequency of about 10 to about 100 Hz.
10. The system of claim 1 , wherein the electrical impulse comprises pulses having a frequency of about 1 kHz to about 20 KHz.
11. The system of claim 1 , wherein the stimulator is configured to transmit the electrical impulse through an outer skin surface of a neck to a vagus nerve of a patient, wherein the nerve is a vagus nerve.