Resources Contact Us Home
Method of improving sensory tolerance with modulated nerve stimulator

Image Number 3 for United States Patent #4453548.

A transcutaneous electrical nerve stimulation apparatus having stimulus electrical pulses modulated in time and intensity to stimulate afferent nerves and cause the release of endogenous opiates which suppress pain. An astable pulse generator provides a first train of pulses at a selected repetition rate. A monostable pulse generator connected to receive the first train of pulses supplies a second pulse train having the frequency of the first train. The width of the pulses of the first train is varied over a predetermined range. A second monostable pulse generator connected to pulse amplifiers receives the first and second train of pulses and provides a supply pulse to the patient. Adjustable pulse modulators connected to the second pulse generators function to simultaneously increase the repetition rate of the first train of pulses and decrease the second train of pulses.

  Recently Added Patents
Method of purifying crude acetone stream
Method for production of a thermoelectric apparatus
Permeable pressure sensitive adhesive
Polishing composition
Insulin derivative
Semiconductor device and method for manufacturing same
  Randomly Featured Patents
Wall structure for protection against wind-caused uplift
Work holding jig
High speed bulk compounder
Method for testing field programmable gate arrays
Transformer housing
Process for preparing cyclic polyethers
Powder paint with epoxy and hydroxy copolymer and anhydride
Method of forming a transistor having gate and body in direct self-aligned contact
Method and apparatus for removal of last traces of soluble ash and elements from solvent refined coal
HCV combination therapy