Patents by Inventor Gunnar Engstrom

Gunnar Engstrom 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).

  • Publication number: 20050131333
    Abstract: The present invention relates to an apparatus (1) for reducing the fat content of blood and in particular to an apparatus (1) for reducing the fat content of pericardial suction blood. The apparatus (1) has a conduit for blood, an absorbing filter (42, 61, 168) located in the conduit and an associated temperature control means for adjusting the temperature of blood before it flows through the filter (42, 61, 168).
    Type: Application
    Filed: February 3, 2003
    Publication date: June 16, 2005
    Applicant: Astra Tech AB
    Inventor: Gunnar Engstrom
  • Patent number: 5312731
    Abstract: A method and apparatus for a high time resolution study of a reaction pattern of a cell or cell aggregates by light transmission microscopy during perfusion by different media. The apparatus comprises a light transparent chamber defining a first space for receiving a medium and a second space for receiving a cell or cell aggregates. The first space and second space are separated by a transparent slide and communicate with one another through a slit shaped opening. The slit shaped opening allows a first medium in the first space, for instance a control medium, to be drawn through the cell space by an external pump. The control medium in the first space may be replaced by a different medium, for instance a cytotoxic drug, by pumping the control medium from the first space and replacing it with the test medium. Pumping the control medium out of the first space however does not remove the control medium from the second space.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: May 17, 1994
    Inventor: Gunnar Engstrom