Patents by Inventor Martin Wikstrom

Martin Wikstrom 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 device for removing respiratory artefacts from measured blood pressure data
    Patent number: 7887490
    Abstract: The invention relates to a method and a device for removing respiratory artefacts in invasive blood pressure measurements. The level of CO2 in the expired air is monitored during blood pressure measurement and used to approximate and remove the respiratory artifacts. In one embodiment, the respiratory frequency from the respiratory signal is extracted by identifying the end-tidal CO2 level for each breath. A model is derived for the respiratory artifacts using the respiratory frequency, and the model is subtracted from the measured blood pressure data.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: February 15, 2011
    Assignee: Siemens Aktiengesellscahft
    Inventors: Kenneth Danehorn, Fredrik Gustafsson, Martin Wikström
  • Method and device for removing respiratory artefacts from measured blood pressure data
    Publication number: 20070073170
    Abstract: The invention relates to a method and a device for removing respiratory artefacts in invasive blood pressure measurements. The level of CO2 in the expired air is monitored during blood pressure measurement and used to approximate and remove the respiratory artifacts. In one embodiment, the respiratory frequency from the respiratory signal is extracted by identifying the end-tidal CO2 level for each breath. A model is derived for the respiratory artifacts using the respiratory frequency, and the model is subtracted from the measured blood pressure data.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 29, 2007
    Inventors: Kenneth Danehorn, Fredrik Gustafsson, Martin Wikstrom