Patents by Inventor Joachim Vester

Joachim Vester 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).

  • Patent number: 5287853
    Abstract: An adapter cable is used for connecting a pulsoximetry sensor unit to a medical measuring device. The pulsoximetry sensor unit comprises, among other components, two antiparallel-connected, light-emitting diodes, which are activated alternatingly by a pulse current source of the medical measuring device. Between said pulsoximetry sensor unit and said medical measuring device, a plurality of grounding lines extend within the adapter cable. In the case of a short circuit between one of the two supply lines of the antiparallel-connected, light-emitting elements and one of the grounding lines, the fault current is caused to flow in the grounding lines to a first node in accordance with the present invention, said first node being adapted to be connected to a reference potential of the medical measuring device via a first resistor.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: February 22, 1994
    Assignee: Hewlett-Packard Company
    Inventors: Joachim Vester, Heinz Sommer
  • Patent number: 5184618
    Abstract: A system for invasive measuring of blood gas parameters, such as pH, pO.sub.2 or pCO.sub.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: February 9, 1993
    Assignee: Hewlett Packard Company
    Inventors: Bernhard Wider, Michael Blank, Joachim Vester