Patents by Inventor Bertil Hook

Bertil Hook 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).

  • Miniaturized sensor for physiological pressure measurements
    Patent number: 5018529
    Abstract: Miniaturized sensor for physiological pressure measurements in situ, including an elastic sleeve (1) with a diaphragm portion through which the hydrostatic pressure is transmitted as a force acting on a light conductor (2) which is supplied with light from an external source and fixed to a support body (3) such that the hydrostatic pressure variations cause elastic, relative positional variations between the end surface (4) of the light conductor (2) and a light-reflecting surface (5) on the support body (3), which in turn gives rise to variations in reflected light intensity transmitted back through the light conductor (2), to serve as a pressure signal.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: May 28, 1991
    Assignee: Radisensor AB
    Inventors: Lars Tenerz, Bertil Hook
  • Guide for mechanical guiding of a catheter in connection with cardio and vascular examination
    Patent number: 4941473
    Abstract: A guidewire for guiding a catheter is provided including a pressure sensor at the distal end of the guidewire and a ventilation passage for connecting the pressure sensor to ambient pressure.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: July 17, 1990
    Assignee: Radisensor AB
    Inventors: Lars Tenerz, Bertil Hook, Thomas Engstrom