Patents by Inventor Maria Louisa Izamis

Maria Louisa Izamis 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: 20240081766
    Abstract: Perfusion angiography combined with photoplethysmography imaging for peripheral vascular disease assessment A device (13) and method for performing perfusion imaging receive image sequences that are acquired simultaneously by an X-ray imaging apparatus (2) and by a photoplethysmography imaging apparatus (3). When temporally aligned, changes in the perfusion states of a perfused organic tissue over time are extracted from the two image sequences and an image is generated for display on a display unit (5) which indicates the changes in the perfusion states at various locations of the perfused organ tissue, thereby capturing both deep organ tissue and superficial organ tissue perfusion properties. A diminution in an image signal strength in the photoplethysmography images caused by a passage of a bolus comprising a previously administered contrast agent (10) can be used to align the two concurrently acquired image sequences in time.
    Type: Application
    Filed: October 13, 2020
    Publication date: March 14, 2024
    Inventors: Bernardus Hendrikus WIlhelmus HENDRIKS, Maria-Louisa IZAMIS, Caifeng SHAN
  • Patent number: 11917992
    Abstract: The present invention relates to organ perfusion systems that can be used at room temperature. The organ perfusion systems do not comprise a temperature controller. In some embodiments, the organ perfusion systems do not comprise a cleaning device for cleaning the perfusion fluid. The perfusion fluid can comprise Williams' medium E. The organ perfusion systems can be portable and can be used to preserving an organ, preventing ischemic damage in an organ, or recovering an ischemically damaged organ.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: March 5, 2024
    Assignee: The General Hospital Corporation
    Inventors: Mustafa Korkut Uygun, Bote G. Bruinsma, Maria-Louisa Izamis
  • Publication number: 20230181148
    Abstract: A method (100) for visualizing a section of a patient's vascular system (155) with an ultrasound image processing system (3) is disclosed.
    Type: Application
    Filed: April 21, 2021
    Publication date: June 15, 2023
    Inventors: Aydin MERT, Joanneke Gerrigje GROEN, Frank VERBAKEL, Maria-Louisa IZAMIS, Marc Godfriedus Marie NOTTEN
  • Publication number: 20220098548
    Abstract: One aspect of the invention provides a method for harvesting adult cells from an organ. The method includes perfusing the organ with a perfusate and isolating adult cells from the organ, thereby harvesting the adult cells from the organ. Another aspect of the invention provides a method for rehabilitating an organ. The method includes: dividing the organ into a first portion and a second portion, perfusing the first portion with a decellularization medium, isolating adult cells from the second portion, and recellularizing the first portion with a suspension of the adult cells, thereby rehabilitating the organ.
    Type: Application
    Filed: October 1, 2021
    Publication date: March 31, 2022
    Inventors: Martin Yarmush, Basak E. Uygun, Korkut Uygun, Maria-Louisa Izamis, Alejandro Soto-Gutierrez, Herman Tolboom, Hiroshi Yagi, Carley Shulman, Jack Milwid
  • Patent number: 11136553
    Abstract: One aspect of the invention provides a method for harvesting adult cells from an organ. The method includes perfusing the organ with a perfusate and isolating adult cells from the organ, thereby harvesting the adult cells from the organ. Another aspect of the invention provides a method for rehabilitating an organ. The method includes: dividing the organ into a first portion and a second portion, perfusing the first portion with a decellularization medium, isolating adult cells from the second portion, and recellularizing the first portion with a suspension of the adult cells, thereby rehabilitating the organ.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: October 5, 2021
    Assignees: Massachusetts Institute of Technology, The General Hospital Corporation
    Inventors: Martin Yarmush, Basak E. Uygun, Korkut Uygun, Maria-Louisa Izamis, Alejandro Soto-Gutierrez, Herman Tolboom, Hiroshi Yagi, Carley Shulman, Jack Milwid
  • Publication number: 20210161126
    Abstract: The present invention relates to organ perfusion systems that can be used at room temperature. The organ perfusion systems do not comprise a temperature controller. In some embodiments, the organ perfusion systems do not comprise a cleaning device for cleaning the perfusion fluid. The perfusion fluid can comprise Williams' medium E. The organ perfusion systems can be portable and can be used to preserving an organ, preventing ischemic damage in an organ, or recovering an ischemically damaged organ.
    Type: Application
    Filed: February 12, 2021
    Publication date: June 3, 2021
    Inventors: Musfata Korkut Uygun, Bote G. Bruinsma, Maria-Louisa Izamis
  • Patent number: 10918102
    Abstract: The present invention relates to organ perfusion systems that can be used at room temperature. The organ perfusion systems do not comprise a temperature controller. In some embodiments, the organ perfusion systems do not comprise a cleaning device for cleaning the perfusion fluid. The perfusion fluid can comprise Williams' medium E. The organ perfusion systems can be portable and can be used to preserving an organ, preventing ischemic damage in an organ, or recovering an ischemically damaged organ.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 16, 2021
    Assignee: The General Hospital Corporation
    Inventors: Mustafa Korkut Uygun, Bote G. Bruinsma, Maria-Louisa Izamis
  • Publication number: 20200236924
    Abstract: The present invention generally relates to methods and compositions to determine viability of an organ for transplantation and other medical purposes. One aspect of the invention relates to a method for assessing the viability of an organ by measuring the energy parameters to determine the energy level of the organ by determining the stored cellular energy (e.g., ATP levels), and/or energy consumption over a particular time period of viability. The energy parameters can be compared to reference energy parameters as a highly accurate and reliable prediction of viable cell yield, and organ viability. Another aspect of the invention relates methods to preserve or extend the time period of viability of an organ any combination of (i) preservation perfusion of the organ to prevent ischemic damage, (ii) chemical metabolic suppression of the organ e.g., using metabolic suppressants, (iii) metabolic suppression by physical or environmental conditions, e.g., sub-zero non-freezing storage.
    Type: Application
    Filed: December 6, 2019
    Publication date: July 30, 2020
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Martin L. Yarmush, Mehmet TONER, Maria-Louisa IZAMIS, Timothy Antonie BERENDSEN, Robert Marius BIEGANSKI, Osman Berk USTA, Basak Elif UYGUN, Mustafa Korkut UYGUN, Sinem PERK
  • Patent number: 10575515
    Abstract: The present invention generally relates to methods and compositions to determine viability of an organ for transplantation and other medical purposes. One aspect of the invention relates to a method for assessing the viability of an organ by measuring the energy parameters to determine the energy level of the organ by determining the stored cellular energy (e.g., ATP levels), and/or energy consumption over a particular time period of viability. The energy parameters can be compared to reference energy parameters as a highly accurate and reliable prediction of viable cell yield, and organ viability. Another aspect of the invention relates methods to preserve or extend the time period of viability of an organ any combination of (i) preservation perfusion of the organ to prevent ischemic damage, (ii) chemical metabolic suppression of the organ e.g., using metabolic suppressants, (iii) metabolic suppression by physical or environmental conditions, e.g., sub-zero non-freezing storage.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: March 3, 2020
    Assignee: The General Hospital Corporation
    Inventors: Martin L. Yarmush, Mehmet Toner, Maria-Louisa Izamis, Timothy Antonie Berendsen, Robert Marius Bieganski, Osman Berk Usta, Basak Elif Uygun, Mustafa Korkut Uygun, Sinem Perk
  • Publication number: 20170000110
    Abstract: The present invention relates to organ perfusion systems that can be used at room temperature. The organ perfusion systems do not comprise a temperature controller. In some embodiments, the organ perfusion systems do not comprise a cleaning device for cleaning the perfusion fluid. The perfusion fluid can comprise Williams' medium E. The organ perfusion systems can be portable and can be used to preserving an organ, preventing ischemic damage in an organ, or recovering an ischemically damaged organ.
    Type: Application
    Filed: March 3, 2015
    Publication date: January 5, 2017
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Uygun KORKUT, Bote G. BRUINSMA, Maria-Louisa IZAMIS
  • Publication number: 20150322404
    Abstract: One aspect of the invention provides a method for harvesting adult cells from an organ. The method includes perfusing the organ with a perfusate and isolating adult cells from the organ, thereby harvesting the adult cells from the organ. Another aspect of the invention provides a method for rehabilitating an organ. The method includes: dividing the organ into a first portion and a second portion, perfusing the first portion with a decellularization medium, isolating adult cells from the second portion, and recellularizing the first portion with a suspension of the adult cells, thereby rehabilitating the organ.
    Type: Application
    Filed: April 7, 2015
    Publication date: November 12, 2015
    Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, THE GENERAL HOSPITAL CORPORATION
    Inventors: Martin Yarmush, Basak E. Uygun, Korkut Uygun, Maria-Louisa Izamis, Alejandro Soto-Gutierrez, Herman Tolboom, Hiroshi Yagi, Carley Shulman, Jack Milwid
  • Publication number: 20140030231
    Abstract: The present invention generally relates to methods and compositions to determine viability of an organ for transplantation and other medical purposes. One aspect of the invention relates to a method for assessing the viability of an organ by measuring the energy parameters to determine the energy level of the organ by determining the stored cellular energy (e.g., ATP levels), and/or energy consumption over a particular time period of viability. The energy parameters can be compared to reference energy parameters as a highly accurate and reliable prediction of viable cell yield, and organ viability. Another aspect of the invention relates methods to preserve or extend the time period of viability of an organ any combination of (i) preservation perfusion of the organ to prevent ischemic damage, (ii) chemical metabolic suppression of the organ e.g., using metabolic suppressants, (iii) metabolic suppression by physical or environmental conditions, e.g., sub-zero non-freezing storage.
    Type: Application
    Filed: May 4, 2011
    Publication date: January 30, 2014
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Martin L. Yarmush, Mehmet Toner, Maria-Louisa Izamis, Timothy Antonie Berendsen, Robert Marius Bieganski, Osman Berk Usta, Basak Elif Uygun, Mustafa Korkut Uygun, Sinem Perk
  • Publication number: 20130323708
    Abstract: One aspect of the invention provides a method for harvesting adult cells from an organ. The method includes perfusing the organ with a perfusate and isolating adult cells from the organ, thereby harvesting the adult cells from the organ. Another aspect of the invention provides a method for rehabilitating an organ. The method includes: dividing the organ into a first portion and a second portion, perfusing the first portion with a decellularization medium, isolating adult cells from the second portion, and recellularizing the first portion with a suspension of the adult cells, thereby rehabilitating the organ.
    Type: Application
    Filed: June 30, 2010
    Publication date: December 5, 2013
    Applicants: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, THE GENERAL HOSPITAL CORPORATION
    Inventors: Martin Yarmush, Basak E. Uygun, Mustafa Korkut Uygun, Maria Louisa Izamis, Alejandro Soto-Gutierrez, Herman Tolboom, Hiroshi Yagi, Carley Shulman, John Miles Milwid