Patents by Inventor Lennart Mathiasson

Lennart Mathiasson 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).

  • Method and apparatus for measuring the concentration of a given component in a gas inhaled and/or exhaled by a patient
    Patent number: 4509359
    Abstract: For the purpose of measuring the concentration of one or more given components of the breathing gas of a patient there is removed a small part of the breathing gas at a location immediately in front of the mouth of the patient. The withdrawn gas is passed to a measuring instrument sensitive to the component or components of interest through a line which comprises, at least in part, a thin tube of a fluorosulfonyl polymer, and the outer surface of which is in free contact with the ambient air. In this way, the temperature and relative humidity of the breathing gas supplied to the measuring instrument are brought into agreement with the temperature and relative humidity of the ambient air.
    Type: Grant
    Filed: December 10, 1982
    Date of Patent: April 9, 1985
    Assignee: Gambro Engstrom AB
    Inventors: Andras Gedeon, Lennart Mathiasson