Patents by Inventor Magnus Bjoernstijerna

Magnus Bjoernstijerna 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).

  • Anesthetic system having electronic safety interlock system
    Patent number: 5537992
    Abstract: A safety system is provided for anesthetic systems with at least two anesthetic vaporizers, the safety system preventing the simultaneous supply of anesthetic to a breathing circuit by more than one anesthetic vaporizer. The safety system which prevents this includes a setting means for each vaporizer which emits an activation signal when moved from an OFF position to an active position. The activation signal is received by a control unit which then sends a control signal to blocking valves, respectively arranged by the anesthetic vaporizers, and prevents the passage of breathing gas to more than one anesthetic vaporizer for vaporization of an anesthetic.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: July 23, 1996
    Assignee: Siemens Elema AB
    Inventors: Magnus Bjoernstijerna, Paer Emtell, Georgios Psaros