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

Image Number 2 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
System, method and apparatus for pausing multi-channel broadcasts
Linear jet ionizer
Managing device functionality during predetermined conditions
Retransmission and retransmission request in data communication systems
Automatic stop and restart device for an engine
Case for a tablet computer
Electrical connector
  Randomly Featured Patents
System and method for integrating arbitrary isochronous processing algorithms in general media processing systems
Ink cartridge
OFDM communication apparatus
Hybrid microcontroller system and method
Rheology modification of interpolymers of alpha-olefins and vinylidene aromatic monomers
Copolymers useful as additives for lowering the cloud point of middle hydrocarbon distillates, and compositions of middle hydrocarbon distillates comprising them
Portable electronic device with a hinge mechanism
System and method for storing and retrieving performance and topology information
Vacuum chamber for containing particle beams
Method for removing a pore-generating material from an uncured low-k dielectric film