Patents by Inventor Ki-Cheung Chu

Ki-Cheung Chu 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: 11701017
    Abstract: Vasculature or parenchyma is imaged using upright MRI techniques, on patients who may have conditions such as congestive heart failure, or otherwise be healthy. When an individual is horizontal, venous drainage is minimized, causing the vessels to remain engorged, also referred to herein as vascular congestion. Vascular congestion results in an enlarging of the vessels and surrounding tissue causing the vessels to be more visible on MRIs. The decrease in vascular visibility in upright subjects is in part, due to an increase in venous drainage. Patients suffering from coronary and/or pulmonary deficiencies (e.g. CHF) experience decreased rates and degrees of venous drainage. In one embodiment, the present invention uses upright imaging to visualize these enlarged vessels.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: July 18, 2023
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Patent number: 11103149
    Abstract: Vasculature or parenchyma is imaged using upright MRI techniques, on patients who may have conditions such as congestive heart failure, or otherwise be healthy. When an individual is horizontal, venous drainage is minimized, causing the vessels to remain engorged, also referred to herein as vascular congestion. Vascular congestion results in an enlarging of the vessels and surrounding tissue causing the vessels to be more visible on MRIs. The decrease in vascular visibility in upright subjects is in part, due to an increase in venous drainage. Patients suffering from coronary and/or pulmonary deficiencies (e.g. CHF) experience decreased rates and degrees of venous drainage. In one embodiment, the present invention uses upright imaging to visualize these enlarged vessels.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 31, 2021
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Patent number: 10149633
    Abstract: The present invention relates to a method for monitoring the presence of, or the susceptibility to multiple sclerosis. The method may include obtaining measurements of the cerebrospinal fluid (CSF) flow in a patient using magnetic resonance imaging, and deriving one or more values representing the CSF flow in the patient. These values may be used to determine if the patient has abnormal CSF flow, as such abnormal CSF flow may be indicative of presence of, or susceptibility to multiple sclerosis. The present invention also discloses that magnetic resonance images may be obtained on patients in various positions, including the upright position.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 11, 2018
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Patent number: 9649047
    Abstract: The present invention relates to a method for monitoring the presence of, or the susceptibility to multiple sclerosis. The method may include obtaining measurements of the cerebrospinal fluid (CSF) flow in a patient using magnetic resonance imaging, and deriving one or more values representing the CSF flow in the patient. These values may be used to determine if the patient has abnormal CSF flow, as such abnormal CSF flow may be indicative of presence of, or susceptibility to multiple sclerosis. The present invention also discloses that magnetic resonance images may be obtained on patients in various positions, including the upright position.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 16, 2017
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Patent number: 8401612
    Abstract: A method for detecting Chiari malformations. The method generally comprises positioning a patient in an upright orientation in a patient-receiving space of a magnetic resonance imaging apparatus and acquiring images of the patient's cerebellum and brainstem in the upright orientation. The method further comprises positioning the patient in a recumbent orientation in the patient-receiving space of the magnetic resonance imaging apparatus and acquiring images of the patient's cerebellum and brainstem in the recumbent orientation.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: March 19, 2013
    Assignee: Fonar Corporation
    Inventors: Ki-Cheung Chu, Raymond V. Damadian, Daniel Culver
  • Publication number: 20110009731
    Abstract: Vasculature or parenchyma is imaged using upright MRI techniques, on patients who may have conditions such as congestive heart failure, or otherwise be healthy. When an individual is horizontal, venous drainage is minimized, causing the vessels to remain engorged, also referred to herein as vascular congestion. Vascular congestion results in an enlarging of the vessels and surrounding tissue causing the vessels to be more visible on MRIs. The decrease in vascular visibility in upright subjects is in part, due to an increase in venous drainage. Patients suffering from coronary and/or pulmonary deficiencies (e.g. CHF) experience decreased rates and degrees of venous drainage. In one embodiment, the present invention uses upright imaging to visualize these enlarged vessels.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 13, 2011
    Applicant: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu