Patents by Inventor Edwin M. Severinghaus

Edwin M. Severinghaus has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Neuromuscular block monitor
    Patent number: 4291705
    Abstract: To determine the degree of neuromuscular blockage, the apparatus of the invention electrically, supramaximally stimulates the motor nerve of a patient by stimulus means, applies the resulting electromyogram (EMG) produced by the muscle associated with that motor nerve and integrates the amplified EMG with respect to time. The integrated, amplified EMG is then displayed. In a preferred embodiment of the invention means are also provided for displaying the integrated, amplified EMG, taken after a muscle relaxant has been administered to the patient, as a ratio of a control EMG taken with the apparatus before the administration of the drug.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: September 29, 1981
    Assignee: The Regents of the University of California
    Inventors: John W. Severinghaus, Edwin M. Severinghaus