Patents by Inventor Ragnar Olafsson
Ragnar Olafsson 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: 20230001032Abstract: A system and method for disinfection of food processing equipment is described. The system comprises one or more nozzle for delivering disinfecting fog, and is adapted to be used so that there is free space in front of the nozzle, and an angle of at least 20° for the expanding fog. Further disclosed is a food processing system comprising at least one food processing unit that comprises a housing and food processing means within the housing, the housing being provided with a plurality of nozzles on an inside surface to deliver disinfectant and/or cleaning fluid towards the food processing means. Methods of disinfecting food processing equipment are also provided.Type: ApplicationFiled: November 11, 2020Publication date: January 5, 2023Applicant: D-TECH EHFInventor: Ragnar OLAFSSON
-
Publication number: 20220226046Abstract: Provided herein are systems and methods for performing localization within a patient. A method of localization within a body comprises providing at least one processor coupled to at least one data storage device, establishing and calibrating a localization coordinate system within a body by executing a first localization mode by the at least one processor, recalibrating the localization coordinate system by executing a second localization mode by the at least one processor, and localizing a device within the localization coordinate system using the first localization mode and the second localization mode, by the at least one processor. The first localization mode can be an impedance-based localization mode and the second localization mode can be magnetic-based localization mode, or vice versa.Type: ApplicationFiled: June 4, 2020Publication date: July 21, 2022Inventors: Leo MARIAPPAN, Wesley D. JONES, Marcus Frederick JULIAN, Daniel WELSH, Ragnar OLAFSSON, Steven Anthony YON, Derrick Ren-yu CHOU, Michael C. OLIVEIRA, Jun SONG, Ahmad FALAHATPISHEH, Timothy J. CORVI, Graydon Ernest BEATTY, Alexander J. ASCONEGUY, Hongping DAI
-
Patent number: 10241199Abstract: Devices are disclosed for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample. An exemplary device includes a light-beam source, an acoustic-wave source, an optical element, and an acoustic detector. The optical element is transmissive to a light beam produced by the light-beam source and reflective to acoustic waves produced by the acoustic-wave source. The optical element is situated to direct the transmitted light beam and reflected acoustic wave simultaneously along an optical axis to be incident at a situs in or on a sample to cause the sample to produce acoustic echoes from the incident acoustic waves while also producing photoacoustic waves from the incident light beam photoacoustically interacting with the situs. The acoustic detector is placed to receive and detect the acoustic echoes and the photoacoustic waves from the situs. The acoustic detector can comprise one or more hydrophones exploiting the acousto-electric effect.Type: GrantFiled: November 4, 2014Date of Patent: March 26, 2019Assignee: The Arizona Board of Regents on Behalf of the University of ArizonaInventors: Russell S. Witte, Leonardo Gabriel Montilla, Ragnar Olafsson, Charles M. Ingram, Zhaohui Wang, Robert A. Norwood, Charles Greenlee
-
Publication number: 20150226845Abstract: Devices are disclosed for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample. An exemplary device includes a light-beam source, an acoustic-wave source, an optical element, and an acoustic detector. The optical element is transmissive to a light beam produced by the light-beam source and reflective to acoustic waves produced by the acoustic-wave source. The optical element is situated to direct the transmitted light beam and reflected acoustic wave simultaneously along an optical axis to be incident at a situs in or on a sample to cause the sample to produce acoustic echoes from the incident acoustic waves while also producing photoacoustic waves from the incident light beam photoacoustically interacting with the situs. The acoustic detector is placed to receive and detect the acoustic echoes and the photoacoustic waves from the situs. The acoustic detector can comprise one or more hydrophones exploiting the acousto-electric effect.Type: ApplicationFiled: November 4, 2014Publication date: August 13, 2015Inventors: Russell S. Witte, Leonardo Gabriel Montilla, Ragnar Olafsson, Charles M. Ingram, Zhaohui Wang, Robert A. Norwood, Charles Greenlee
-
Patent number: 8879352Abstract: Devices are disclosed for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample. An exemplary device includes a light-beam source, an acoustic-wave source, an optical element, and an acoustic detector. The optical element is transmissive to a light beam produced by the light-beam source and reflective to acoustic waves produced by the acoustic-wave source. The optical element is situated to direct the transmitted light beam and reflected acoustic wave simultaneously along an optical axis to be incident at a situs in or on a sample to cause the sample to produce acoustic echoes from the incident acoustic waves while also producing photoacoustic waves from the incident light beam photoacoustically interacting with the situs. The acoustic detector is placed to receive and detect the acoustic echoes and the photoacoustic waves from the situs. The acoustic detector can comprise one or more hydrophones exploiting the acousto-electric effect.Type: GrantFiled: January 25, 2011Date of Patent: November 4, 2014Assignee: The Arizona Board of Regents on Behalf of the University of ArizonaInventors: Russell S. Witte, Leonardo Gabriel Montilla, Ragnar Olafsson, Charles M. Ingram, Zhaohui Wang, Robert A. Norwood, Charles Greenlee
-
Patent number: 8427906Abstract: An ultrasound system that detects a characteristic of an ultrasound wave. The system includes a circuit member defining a sensing portion operable to be exposed to the ultrasound wave. The system also includes a current generating device that generates a current in the sensing portion of the circuit member. Furthermore, the system includes a voltage sensor that detects a voltage across the sensing portion due to the exposure to the ultrasound wave to thereby detect the characteristic of the ultrasound wave.Type: GrantFiled: October 13, 2008Date of Patent: April 23, 2013Assignee: The Regents of The University of MichiganInventors: Russell S. Witte, Ragnar Olafsson, Sheng-Wen Huang, Timothy L Hall, Matthew O'Donnell
-
Publication number: 20130039147Abstract: Devices are disclosed for obtaining data of a sample, particularly data capable of being processed to produce an image of a region of the sample. An exemplary device includes a light-beam source, an acoustic-wave source, an optical element, and an acoustic detector. The optical element is transmissive to a light beam produced by the light-beam source and reflective to acoustic waves produced by the acoustic-wave source. The optical element is situated to direct the transmitted light beam and reflected acoustic wave simultaneously along an optical axis to be incident at a situs in or on a sample to cause the sample to produce acoustic echoes from the incident acoustic waves while also producing photoacoustic waves from the incident light beam photoacoustically interacting with the situs. The acoustic detector is placed to receive and detect the acoustic echoes and the photoacoustic waves from the situs. The acoustic detector can comprise one or more hydrophones exploiting the acousto-electric effect.Type: ApplicationFiled: January 25, 2011Publication date: February 14, 2013Inventors: Russell S. Witte, Leonardo Gabriel Montilla, Ragnar Olafsson, Charles M. Ingram, Zhaohui Wang, Robert A. Norwood, Charles Greenlee
-
Patent number: 8057390Abstract: A current source density mapping system includes an ultrasound transducer emitting an ultrasound wave traveling along an ultrasound beam directed at a mapping field in a region of living tissue and an ultrasound pulser delivering a transmit pulse to said ultrasound transducer. The system includes a timing device producing controlled excitation of the transmit pulse; a plurality of recording electrodes positioned in contact with the living tissue detecting an acoustoelectric voltage signal generated at a bioelectric current source and within a focal zone of said ultrasound beam.Type: GrantFiled: January 24, 2008Date of Patent: November 15, 2011Assignee: The Regents of The University of MichiganInventors: Russell S. Witte, Ragnar Olafsson, Matthew O'Donnell
-
Publication number: 20100091613Abstract: An ultrasound system that detects a characteristic of an ultrasound wave. The system includes a circuit member defining a sensing portion operable to be exposed to the ultrasound wave. The system also includes a current generating device that generates a current in the sensing portion of the circuit member. Furthermore, the system includes a voltage sensor that detects a voltage across the sensing portion due to the exposure to the ultrasound wave to thereby detect the characteristic of the ultrasound wave.Type: ApplicationFiled: October 13, 2008Publication date: April 15, 2010Applicant: The Regents of The University of MichiganInventors: Russell S. Witte, Ragnar Olafsson, Sheng-Wen Huang, Timothy L. Hall, Matthew O'Donnell
-
Publication number: 20080183076Abstract: A current source density mapping system includes an ultrasound transducer emitting an ultrasound wave traveling along an ultrasound beam directed at a mapping field in a region of living tissue and an ultrasound pulser delivering a transmit pulse to said ultrasound transducer. The system includes a timing device producing controlled excitation of the transmit pulse; a plurality of recording electrodes positioned in contact with the living tissue detecting an acoustoelectric voltage signal generated at a bioelectric current source and within a focal zone of said ultrasound beam.Type: ApplicationFiled: January 24, 2008Publication date: July 31, 2008Applicant: The Regents of The University of MichiganInventors: Russell S. Witte, Ragnar Olafsson, Matthew O'Donnell