Patent ID: 8855787

Claim:
In a method of stimulating an excitable tissue with a primary electrical stimulus through a primary electrode at a primary stimulation frequency, to produce a propagating action potential in said excitable tissue, the improvement comprising: concurrently stimulating said excitable tissue with a secondary electrical stimulus through at least one secondary electrode at a secondary stimulation frequency; wherein said primary and secondary stimulation frequencies are different from one another; and said secondary electrical stimulus has an amplitude not more than one third that of said primary electrical stimulus; so that propagation of said action potential in said excitable tissue is enhanced; and wherein: (i) said primary stimulation frequency is from 1 Hertz up 20 Hertz, (ii) said secondary stimulation frequency is from 1 to 15 percent greater than or 1 to 15 percent less than, said primary stimulation frequency, (iii) said secondary electrical stimulus has an amplitude not more than one tenth that of said primary electrical stimulus, (iv) said primary electrical stimulus has a duration of from 0.1 seconds to 2 seconds, or (v) said secondary electrical stimulus has a duration of from 0.1 second to 2 seconds.