Patents by Inventor Jan Ardenkjaer-Larsen

Jan Ardenkjaer-Larsen 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: 20220163608
    Abstract: A method is provided for cleaning a reusable fluid path system for hyperpolarization of a pharmaceutical product, the system being continuously at least partly contained by a polarizer. The steps include: providing the polarizer with an inlet tube having a first inlet tube end for fluid contact with a fluid vessel and a second inlet tube end for fluid contact with a vial, for holding the pharmaceutical product; providing the polarizer with an outlet tube having a first outlet tube end for receiving the vial and a second outlet tube end for connecting to a receiving vessel; sealing the second inlet end with the first outlet end; fluidly connecting a medium vessel to the first inlet end; fluidly connecting a collector vessel to the second outlet end; cleaning the path system by transferring cleaning medium from the vessel into the system; ejecting the cleaning medium; and drying the path system.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 26, 2022
    Inventor: Jan Ardenkjær-Larsen
  • Publication number: 20080242974
    Abstract: A system for polarizing a material to be used in techniques employing magnetic resonance (MR) is provided. The polarizer system includes a cooling chamber having a cryogenic refrigerant therein for use in polarizing a substance. A sorption pump is connected to the cooling chamber to reduce a pressure therein to allow for hyperpolarizing of the sample. The sorption pump is cooled by a refrigeration system to promote molecular adsorption in the sorption pump. The cooling chamber, sorption pump, and refrigeration system are arranged in a closed system.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 2, 2008
    Inventors: John A. Urbahn, Jan Ardenkjaer-Larsen, Ernst W. Stautner, Bruce C. Amm, Peter J. Feenan, Roy A. Mangano, David G. Reeves
  • Publication number: 20080240998
    Abstract: A fluid path system includes a vial containing a frozen pharmaceutical product therein. A dissolution fluid path is also included in the fluid path system, the dissolution fluid path having an output end in fluid communication with the vial and an input end attached to a pressure vessel containing a dissolution medium. A delivery fluid path is also included in the system having a first end hermetically attached to the vial to transport therefrom a mixture of dissolved pharmaceutical product and dissolution medium and a second end connected to a receiving vessel to receive the mixture. A dissolution fluid path valve is positioned between the pressure vessel and the dissolution fluid path to control flow of the dissolution medium, and a delivery fluid path valve is also included in the fluid path system to control flow of the mixture from the delivery fluid path to the receiving vessel.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Inventors: John A. Urbahn, Jan Ardenkjaer-Larsen, Andrew M. Leach, Eric Telfeyan, David K. Dietrich, David B. Whitt, Peter Miller, Ernst W. Stautner
  • Publication number: 20080229928
    Abstract: A sorption pumping system includes a conductive inner vessel having a sorbent material therein to adsorb gas molecules. An outer vessel is positioned about the inner vessel and includes a heat transfer flange connected thereto. A gas chamber is formed between the inner vessel and the outer vessel. The gas chamber is constructed to sealably contain a thermally conductive gas therein.
    Type: Application
    Filed: March 20, 2007
    Publication date: September 25, 2008
    Inventors: John A. Urbahn, Jan Ardenkjaer-Larsen
  • Publication number: 20060192559
    Abstract: The present invention relates to devices and methods for melting a solid polarised sample while retaining a high level of polarisation. In an embodiment of the present invention a sample is polarised in a sample-retaining cup in a strong magnetic field in a polarising means in a cryostat and then melted inside the cryostat by melting means such as a laser connected by an optical fibre to the interior of the cryostat.
    Type: Application
    Filed: July 28, 2005
    Publication date: August 31, 2006
    Inventors: Jan Ardenkjaer-Larsen, Oskar Axelsson, Klaes Golman, Jan Wolber, Mark Howard
  • Publication number: 20060127314
    Abstract: The present invention relates to an arrangement and a method for providing contrast agent for e.g. MRI (Magnetic Resonance Imaging) and NMR (Nuclear Magnetic Resonance) applications. The method according to the invention comprises the steps of obtaining (100) a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of a substrate compound, hydrogenating (105) the substrate with hydrogen gas (H2) enriched in para-hydrogen (p-1H2) to form a hydrogenated contrast agent and exposing (110: 705) the contrast agent to a magnetic field cycling profile adapted for enhancing the contrasting effects of the contrast agent. The magnetic field cycling profile comprises an initial decrease of the magnetic field followed by at least one increase of the magnetic field, which increase should be arranged as to give a non-adiabatic (diabatic) remagnetisation of the contrast agent.
    Type: Application
    Filed: August 29, 2003
    Publication date: June 15, 2006
    Inventors: Jan Ardenkjaer-Larsen, Oskar Axelsson, Maurice Goldman, Haukur Johannesson
  • Publication number: 20060127313
    Abstract: The present invention relates to an arrangement and a method for providing contrast agent for e.g. MRI (Magnetic Resonance Imaging) and NMR (Nuclear Magnetic Resonance) applications. The method according to the invention comprises the steps of obtaining (100) a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of a substrate compound, hydrogenating (110) the substrate with hydrogen gas (H2) enriched in para-hydrogen (p-1H2) to form a hydrogenated contrast agent and exposing (120) the contrast agent to a oscillating magnetic field in combination with a stationary magnetic field. The apparatus comprises a magnetic treatment unit (240) equipped with means for producing an oscillating and a stationary magnetic field.
    Type: Application
    Filed: August 29, 2003
    Publication date: June 15, 2006
    Inventors: Maurice Goldman, Oskar Axelsson, Haukur Johannesson, Jan Ardenkjaer-Larsen
  • Publication number: 20060104906
    Abstract: The present invention relates to an arrangement and a method for providing contrast agent for e.g. MRI (Magnetic Resonance Imaging) and NMR (Nuclear Magnetic Resonance) applications. The method according to the invention comprises the steps of obtaining (100) a solution in a solvent of a hydrogenatable, unsaturated substrate compound and a catalyst for the hydrogenation of a substrate compound, hydrogenating (110) the substrate with hydrogen gas (H2) enriched in para-hydrogen (p-1H2) to form a hydrogenated contrast agent and exposing (120, 305) the contrast agent to a sequence of pulses of magnetic field. The apparatus comprises a magnetic treatment unit (240) equipped with means for producing pulses of magnetic field.
    Type: Application
    Filed: August 29, 2003
    Publication date: May 18, 2006
    Inventors: Jan Ardenkjaer-Larsen, Oskar Axelsson, Haukur Johannesson
  • Publication number: 20050225328
    Abstract: The present invention relates to devices and method for melting solid polarised sample while retaining a high level of polarisation. In an embodiment of the present invention a sample is polarised in a sample-retaining cup 9 in a strong magnetic field in a polarising means 3a, 3b, 3c in a cryostat 2 and then melted inside the cryostat 2 by melting means such as a laser 8 connected by an optical fibre 4 to the interior of the cryostat.
    Type: Application
    Filed: February 22, 2005
    Publication date: October 13, 2005
    Inventors: Jan Ardenkjaer-Larsen, Oskar Axelsson, Klaes Golman, Jan Wolber, Mark Howard