Patents by Inventor Larry S. Martin

Larry S. Martin 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).

  • Patient breathing monitoring apparatus and method
    Patent number: 4148313
    Abstract: The patient breathing monitoring apparatus is used for monitoring the airway of a patient which has a respirator connected thereto and which is connected to a source of gas. The respirator is of a type which during the inhalation phase supplies inspiratory gases to the airway of the patient and during exhalation phase permits the discharge of gases from the airway of the patient. The monitoring apparatus includes first and second pressure switches each of which has an inlet connected to the airway of the patient. One of the pressure switches is adjustable to sense a decrease in pressure in the airway below a predetermined value whereas the other of the switches is adjustable to sense an increase in pressure in the airway above a predetermined value. An alarm devices is coupled to the pressure switches for giving an alarm when the one switch senses a decrease in pressure below the predetermined value and when the other of the switches senses an increase in pressure above a predetermined value.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: April 10, 1979
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Forrest M. Bird, Larry S. Martin