Method for inducing electroanesthesia using high frequency, high intensity transcutaneous electrical nerve stimulation

• US 20010007949A1
• Filed: 02/06/2001
• Published: 07/12/2001
• Est. Priority Date: 11/23/1998
• Status: Active Grant

• Current Assignee: The Synaptic Corp.
• Original Assignee: The Synaptic Corp.
• Inventors: Silverstone, Leon M.
• Granted Patent: US 6,351,674 B2
• Time in Patent Office: Days
• US Class Current: 607/45
• CPC Class Codes: A61N 1/36021 for treatment of pain
• CPC Class Codes: A61N 1/36025 for treating a mental or cerebral condition

Abstract

A non-invasive method of treating, controlling or preventing medical, psychiatric or neurological disorders is provided using transcutaneous electrical stimulation. A plurality of stimulation frequency parameters are used ranging from a relatively high frequency, for example about 40,000 Hertz, to a relatively low frequency, for example about 250 Hertz. The entirety of frequency parameters may be administered at each of a plurality of stimulation intensity levels. In particular, stimulating may begin at a first highest frequency parameter and a first lowest intensity parameter with the stimulation frequency parameter incrementally decreasing to the lowest frequency parameter. Then the frequency parameter is returned to the highest frequency parameter, and the intensity parameter increased to a next higher intensity parameter, and again stimulating through the plurality of frequency parameters from the highest frequency to the lowest frequency. The method described herein is useful in treating, controlling and/or preventing various disease states and disorders, and has been found to be particularly effective in administering nerve block electroanesthesia.

Claims

1. A non-invasive method of inducing nerve blocks by using electroanesthesia applied via transcutaneous electrical stimulation, which method comprises

affixing a first electrode pair to the skin of a patient to be treated in the vicinity of the nerve to be blocked, which electrode pair is associated with a pulse generator such that stimulation at a desired frequency and intensity may be provided to the patient through said electrode pair,

affixing a second electrode pair to the skin of a patient either on the opposite side of the body from the location of the first electrode pair or bilaterally of the spine at about C5, said second electrode pair being larger in size than said first electrode pair and also being associated with the pulse generator, and

thereafter carrying out the following steps of:

(a) providing the patient with a series of intensities at which stimulation may be carried out;

(b) choosing an intensity from said series as high as the patient can reasonably tolerate;

(c) stimulating at a first high frequency in the range of 60,000 Hz to about 25,000 Hz and at said chosen intensity; and

(d) decreasing the stimulation frequency at said chosen intensity to a lower frequency over a time period of at least about 20 minutes by initially lowering the frequency to a level that is still tolerable to the patient and then continuing to gradually decrease the frequency thereafter.

2. The method of

claim 1

wherein said first high intensity is between about 55 and about 40 volts.

3. The method of

claim 2

wherein the first high frequency parameter is about 40,000 Hertz and the lowest frequency parameter is not less than about 250 Hertz.

4. The method of

claim 2

wherein said first high intensity is at an amperage of about 40 milliamps.

5. The method of

claim 2

wherein said stimulating employs a waveform having a fast time rise and a slow decay.

6. The method of

claim 2

wherein the first high frequency parameter is about 40,000 Hertz and the lowest frequency parameter is not less than about 400 Hertz.

7. The method of

claim 1

wherein said second electrode pair is located bilateral of the spine at C5.

8. The method of

claim 1

wherein said decreasing of the stimulation frequency is performed over a time duration (T) of at least about 20 minutes and comprises the steps of:

a) decreasing the stimulation frequency about 73% of the first high frequency over the first time period 0.1T;

b) then decreasing the stimulation frequency about another 8% of the first high frequency over the next time period 0.1T;

c) then decreasing the stimulation frequency about another 5% of the first high frequency over the next time period 0.1T;

d) then decreasing the stimulation frequency about another 4% of the first high frequency over the next time period 0.1T; and

e) then decreasing the stimulation frequency about another 10% over the remaining time period of 0.6T.

9. The method of

claim 8

wherein the first high frequency parameter is about 40,000 Hertz and the lowest frequency parameter is not less than about 400 Hertz.

10. The method of

claim 9

wherein said first high intensity is between about 55 and about 40 volts at an amperage of about 40 milliamps.