Patents Assigned to Asulab AG
  • Patent number: 4429699
    Abstract: There is disclosed blood pressure measuring equipment comprising a sleeve with a chamber inflatable by fluid and a measurement transducer for determining the circumference of an arm to which the sleeve is attached. A pressure sensor is provided to detect pressure in the chamber and is electrically connected through electronic components with two analog stores for storage of measured pressure values representing systolic and diastolic blood pressure. An indicating control device is connected between the stores and a digital display unit and comprises a pressure value correcting device by means of which the pressure values can be corrected, in dependence on the circumference of the arm as determined by the transducer, during readout of the stores. As a result, errors in the pressure values due to different arm circumferences can be eliminated.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: February 7, 1984
    Assignee: Asulab AG
    Inventor: Rudolf A. Hatschek
  • Patent number: D380552
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: July 1, 1997
    Assignee: Asulab AG (Asulab S.A.) (Asulab Ltd.)
    Inventors: Erik Jan Frenkel, Jean-Jacques Born, Konrad Schafroth
  • Patent number: D423102
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: April 18, 2000
    Assignee: ASULAB AG (ASULAB SA) (ASULAB Ltd.)
    Inventor: Nicolas Mertenat