Patents by Inventor Keith C. Allberg

Keith C. Allberg 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: 9117561
    Abstract: A universal mounting adapter is configured for interchangeably mounting a calibration source to two or more different imaging devices. The two imaging devices have different mounting brackets so they cannot be used with the same conventional calibration source. The present adapter includes mounting mechanisms for both types of bracket, allowing the attached calibration source to be moved from one imaging device to the other, while maintaining the calibration source in a prescribed geometry within the respective imaging device. This can be performed without the need for any tools.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 25, 2015
    Assignee: RadQual, LLC
    Inventor: Keith C. Allberg
  • Publication number: 20130075599
    Abstract: A universal mounting adapter is configured for interchangeably mounting a calibration source to two or more different imaging devices. The two imaging devices have different mounting brackets so they cannot be used with the same conventional calibration source. The present adapter includes mounting mechanisms for both types of bracket, allowing the attached calibration source to be moved from one imaging device to the other, while maintaining the calibration source in a prescribed geometry within the respective imaging device. This can be performed without the need for any tools.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 28, 2013
    Applicant: RADQUAL, LLC
    Inventor: Keith C. Allberg
  • Patent number: 7858925
    Abstract: A method, system and kit for calibrating a PET scanner is disclosed. A first aliquot (10) containing a quantity of a radionuclide dispersed in a solid matrix material is provided, wherein the first aliquot is sized and configured to be received for measurement by a conventional dose calibrator. A second aliquot (200) containing a quantity of the radionuclide dispersed in the solid matrix material is sized configured to be scanned in a PET scanner. The radionuclide/matrix materials in the first and second aliquots are obtained from the same batch of material, such that the two quantities have the same radioactivity density, or are obtained from different cross-calibrated batches of material. In a method, the first aliquot is placed in a does calibrator (36) and the radioactivity is measured. The second aliquot is scanned in the PET scanner (190) and the intensity of the image is correlated with the known radioactivity measured by the dose calibrator and used to calibrate the PET scanner.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: December 28, 2010
    Assignee: University of Washington
    Inventors: Paul E. Kinahan, Keith C. Allberg, Robert K. Doot, Catherine M. Lockhart, Wendy McDougald
  • Patent number: 7825372
    Abstract: A method for calibration and a calibrator source standard calibrated by the method are provided. The calibration method includes providing mock syringes, or other simulated dose container. A first of the mock syringes is filled with a short half life positron emitter. A second of the mock syringes is filled with a longer half life radionuclide set in a matrix material such as an epoxy. The activities of the two syringes can be determined, ideally in the same ion chamber, for example, against a radioactive source standard having a half life greater than the first and second radionuclides. This allows a conversion factor to be determined which can be used for a calibrator source standard formed as for the second mock syringe (i.e.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: November 2, 2010
    Assignee: RadQual, LLC
    Inventor: Keith C. Allberg
  • Patent number: 7615740
    Abstract: A dose calibrator source standard includes a container comprising a cylindrical barrel and a support member which extends radially outward of the cylindrical barrel. A radioactive source-containing material is sealed within the container. The radioactive source-containing material comprising a radionuclide dispersed within a matrix material.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 10, 2009
    Assignee: Radqual, LLC
    Inventor: Keith C. Allberg
  • Publication number: 20090194677
    Abstract: A method for calibration and a calibrator source standard calibrated by the method are provided. The calibration method includes providing mock syringes, or other simulated dose container. A first of the mock syringes is filled with a short half life positron emitter. A second of the mock syringes is filled with a longer half life radionuclide set in a matrix material such as an epoxy. The activities of the two syringes can be determined, ideally in the same ion chamber, for example, against a radioactive source standard having a half life greater than the first and second radionuclides. This allows a conversion factor to be determined which can be used for a calibrator source standard formed as for the second mock syringe (i.e.
    Type: Application
    Filed: March 9, 2009
    Publication date: August 6, 2009
    Applicant: RadQual, LLC
    Inventor: Keith C. Allberg
  • Publication number: 20070260477
    Abstract: A method of supplying a made-to-order flood source includes, in response to receiving an order for a flood source from a customer, selecting a mold from a plurality of molds to meet a size of the flood source ordered. A radionuclide is dispersed in a heat curable matrix material to form a mixture. The mixture is cured in the selected mold by application of heat. The cured mixture may be thereafter removed from the mold and encapsulated to form the flood source. The method allows the finished flood source to be shipped to the customer within twenty-four hours of receiving the order.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 8, 2007
    Inventor: Keith C. Allberg
  • Patent number: 6635893
    Abstract: A bag (10) for transporting radioactive flood sources and the like is formed from a lightweight, multi-layer sheet material comprising a layer (42) of a high-Z, radiation shielding material sandwiched between inner and outer layers (46, 40) of protective material. The radiation shielding material is preferably formed from a lead or tungsten composite comprising a lead or tungsten powder dispersed in a polymer matrix, such as a lead/vinyl composite. The flexible bag is lightweight, allowing the flood shield to be transported easily by handles (26, 28), without the need for maneuvering the bag along the floor on wheels.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: October 21, 2003
    Assignee: RadQual, LLC
    Inventors: Randall O'Kane, Sr., Keith C. Allberg
  • Publication number: 20020060300
    Abstract: A bag (10) for transporting radioactive flood sources and the like is formed from a lightweight, multilayer sheet material comprising a layer (42) of a high-Z, radiation shielding material sandwiched between inner and outer layers (46, 40) of protective material. The radiation shielding material is preferably formed from a lead or tungsten composite comprising a lead or tungsten powder dispersed in a polymer matrix, such as a lead/vinyl composite. The flexible bag is lightweight, allowing the flood shield to be transported easily by handles (26, 28), without the need for maneuvering the bag along the floor on wheels.
    Type: Application
    Filed: November 14, 2001
    Publication date: May 23, 2002
    Applicant: RadQual, LLC
    Inventors: Randall O'kane, Keith C. Allberg