Patents by Inventor Chae-Hun LEEM

Chae-Hun LEEM 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: 11083385
    Abstract: The present invention relates to an apparatus for measuring blood circulation disorders, and a method therefor. The apparatus for measuring blood circulation disorders using a pulse wave transit time includes a measurement unit configured to measure a pulse wave and an electrocardiogram of a subject to be measured, a detection unit configured to detect time information of a peak value point of the electrocardiogram and a peak value point and a foot value point of the pulse wave, an operation unit configured to calculate an average pulse wave transit time using the time information of the peak value point of the electrocardiogram and the peak value point and the foot value point of the pulse wave and calculate a blood circulation disorder determination index using the average pulse wave transit time, and a diagnosis unit configured to diagnose a blood circulation disorder using the blood circulation disorder determination index.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 10, 2021
    Assignee: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION
    Inventors: Chae Hun Leem, Young Boum Lee, Moo Yong Rhee
  • Publication number: 20190183361
    Abstract: Provided is a device and method for diagnosing a blood circulation disturbance. The device includes a measurement unit configured to measure a first signal and a second signal associated with a cardiac impulse of a patient at two different points in a body of the patient, a matching unit configured to match cycles of the first signal and the second signal, and a diagnosis unit configured to acquire reference points included in the matched cycles of the first signal and the second signal and to diagnose the blood circulation disturbance of the patient using a time difference between the reference points.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 20, 2019
    Inventor: Chae Hun LEEM
  • Publication number: 20170367595
    Abstract: The present invention relates to an apparatus for measuring blood circulation disorders, and a method therefor. The apparatus for measuring blood circulation disorders using a pulse wave transit time includes a measurement unit configured to measure a pulse wave and an electrocardiogram of a subject to be measured, a detection unit configured to detect time information of a peak value point of the electrocardiogram and a peak value point and a foot value point of the pulse wave, an operation unit configured to calculate an average pulse wave transit time using the time information of the peak value point of the electrocardiogram and the peak value point and the foot value point of the pulse wave and calculate a blood circulation disorder determination index using the average pulse wave transit time, and a diagnosis unit configured to diagnose a blood circulation disorder using the blood circulation disorder determination index.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 28, 2017
    Inventors: Chae Hun LEEM, Young Boum LEE, Moo Yong RHEE
  • Publication number: 20170322220
    Abstract: A method of extracting organ metabolic functions using oral glucose tolerance tests (OGTTs) comprises: a step of measuring an amount of change over time in plasma glucose and plasma insulin at a regular time interval after a subject has consumed a certain quantity of a glucose solution; a step of extracting parameters associated with organ metabolism in a human body by applying the amount of change over time of the measured glucose and insulin to a human organ function model; and a step of diagnosing the metabolic function state of the subject using the extracted parameters.
    Type: Application
    Filed: August 25, 2015
    Publication date: November 9, 2017
    Applicant: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION
    Inventor: Chae-Hun LEEM