Neurocybernetic prosthesis

Details Neurocybernetic prosthesis Neurocybernetic prosthesis

1989-01-25

1991-06-25

Cohen, Lee S.

Surgery

Truss

Pad

A61N 132

Patent

active

050258079

ABSTRACT:
A neurocybernetic prosthesis for controlling or preventing epileptic seizures and other motor disorders includes a pulse generator which generates electrical pulses having a frequency of between 30 and 300 cycles per second, a pulse duration of between 0.3 and 1 millisecond and a constant current of between 1 and 20 milliamperes. The generator is enclosed in an epoxy-titanium shell and is implanted in the body, preferably in the axilla. Electrode leads pass from the generator through a subcutaneous tunnel and terminate in an electrode patch on the vagus nerve. Provisions are made for varying the electrical signal from the generator after it has been implanted to "tune" the same to the patient. The prosthesis may be designed to be turned on manually when the patient senses the imminence of a convulsion. Alternatively, sensors may be provided for determining changes in the values of state parameters such as electroencephalographic waves which precede a convulsion. The pulse generator can then be turned on automatically in response to the sensors.

REFERENCES:
patent: 3296221 (1967-03-01), Hagfars
patent: 3650277 (1972-03-01), Sjostrand
patent: 3850161 (1974-11-01), Liss
patent: 3918461 (1975-11-01), Cooper
patent: 4702554 (1987-10-01), Zabara
patent: 4867164 (1989-09-01), Zabara
Bilgutay et al, "Vagal Tuning", J. Thoracic & Card Surg., vol. 56, No. 1, Jul. 1968, pp. 71-82.
Neustadt et al, "Implanted Corodoid . . . Hypertension", Surgical Forum, pp. 123-127, 1966.
Peters et al., "The Principle of Elect. Carotoid . . . Therapy", A. Bromed Eng, vol. 8, No. 4-6; pp. 445-458, 1980.

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