Methods for applying epidural electrical stimulation
Embodiments of the present invention relate to methods for applying epidural electrical stimulation to improve motor function or physiological responses in paralyzed individuals. More particularly, the present invention relates to methods for creating and applying specific configurations of epidural stimulation to assist or cause a patient to perform a complex motor function or to mitigate one or more secondary consequences of paralysis including, but not limited to, cardiovascular, respiratory, bladder, temperature and sexual dysfunction.
1. A method for electrical epidural stimulation to a patient, comprising:
providing an implantable electrode array comprising a plurality of electrodes, wherein at least one of the plurality of electrodes is configured to deliver one or more electric pulses, wherein each pulse includes a frequency, a pulse width, an amplitude, an onset time, and an end time;
grouping electrodes configured to deliver electric pulses with identical onset times, identical end times, identical frequencies, and identical pulse widths into at least one cohort;
grouping at least one cohort configured to deliver electric pulses with identical onset times and identical end times into at least one sequence, wherein each electrode is not grouped into more than one cohort within each sequence;
grouping at least one sequence into a program, the program configured to deliver electrical epidural stimulation causing the patient to perform a specific motor function or physiological response; and
delivering electrical stimulation to the patient, via the electrodes, according to the program.
2. The method of claim 1 , further comprising grouping electrodes configured to deliver electric pulses with identical onset times, identical end times, identical frequencies, identical pulse widths, and identical amplitudes into basic units, and
wherein grouping electrodes configured to deliver electric pulses with identical onset times, identical end times, identical frequencies, and identical pulse widths into at least one cohort comprises grouping at least one basic unit into at least one cohort.
3. The method of claim 1 , wherein the frequency, pulse width, amplitude, onset time and end time of each electrode in the plurality of electrodes is independently controllable.
4. The method of claim 1 , wherein the program includes an on cycle period and an off cycle period.
5. The method of claim 4 , wherein, during the on cycle period, at least one sequence in the program delivers electrical epidural stimulation to the patient, and wherein, during the off cycle period, no sequence in the program delivers electrical epidural stimulation to the patient.
6. The method of claim 1 , wherein grouping at least one sequence into the program includes grouping a plurality of sequences into the program.
7. The method of claim 1 , further comprising grouping at least one program into a protocol.
8. The method of claim 1 , wherein grouping at least one program into a protocol includes grouping a plurality of programs into a protocol, the protocol being configured to deliver electrical epidural stimulation causing the patient to perform a plurality of specific motor functions or physiological responses.