Patents by Inventor Christopher V. Hollot

Christopher V. Hollot 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: 20240131239
    Abstract: Absolute blood volume in dialysis patients is a useful patient attribute to know for dialysis treatment, diagnosis, adjustments, etc. In some cases, it is difficult or impossible to directly determine absolute blood volume. Estimating absolute blood volume may be used to overcome the inability to directly determine the absolute blood volume. Estimating absolute blood volume may include obtaining a series of measurements of hemoconcentration of a patient over a time period, and estimating parameters for a physiological model based on the series of measurements. The absolute blood volume of the patient may be determined using the physiological model.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Yossi Chait, Joseph Horowitz, Christopher V. Hollot, Hamed Samandari, Michael J. Germain, Daniel Schneditz
  • Patent number: 11896748
    Abstract: Absolute blood volume in dialysis patients is a useful patient attribute to know for dialysis treatment, diagnosis, adjustments, etc. In some cases, it is difficult or impossible to directly determine absolute blood volume. Estimating absolute blood volume may be used to overcome the inability to directly determine the absolute blood volume. Estimating absolute blood volume may include obtaining a series of measurements of hemoconcentration of a patient over a time period, and estimating parameters for a physiological model based on the series of measurements. The absolute blood volume of the patient may be determined using the physiological model.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 13, 2024
    Assignee: University of Massachusetts
    Inventors: Yossi Chait, Joseph Horowitz, Christopher V. Hollot, Hamed Samandari, Michael J. Germain, Daniel Schneditz
  • Publication number: 20200086027
    Abstract: Absolute blood volume in dialysis patients is a useful patient attribute to know for dialysis treatment, diagnosis, adjustments, etc. In some cases, it is difficult or impossible to directly determine absolute blood volume. Estimating absolute blood volume may be used to overcome the inability to directly determine the absolute blood volume. Estimating absolute blood volume may include obtaining a series of measurements of hemoconcentration of a patient over a time period, and estimating parameters for a physiological model based on the series of measurements. The absolute blood volume of the patient may be determined using the physiological model.
    Type: Application
    Filed: June 1, 2018
    Publication date: March 19, 2020
    Inventors: Yossi Chait, Joseph Horowitz, Christopher V. Hollot, Hamed Samandari, Michael J. Germain, Daniel Schneditz
  • Publication number: 20200054814
    Abstract: Hemodialysis is used to remove fluid from a patient suffering from end-stage renal kidney disease. An optimization-based approach including a design of an individualized ultrafiltration rate profile may be used to prevent hematocrit levels from exceeding a threshold, thereby preventing adverse effects in the patient. The individualized ultrafiltration rate profile may be based on previously obtained clinical data for the patient, a volume of fluid to be removed from the patient, a specified period of time for removal of the fluid, or a patient-specific fluid volume model. The ultrafiltration rate profile may be time-variant over the specified period of time.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 20, 2020
    Inventors: Rammah Abohtyra, Yossi Chait, Christopher V. Hollot, Joseph Horowitz, Michael J. Germain
  • Publication number: 20190013090
    Abstract: The present invention is generally directed to methods and devices for determining dosing for a medical agent. In some embodiments, a mathematical algorithm is employed for computing erythropoiesis-stimulating agents dosing for treating anemia in a subject, e.g., a human subject. Any suitable dosing may be used, e.g., intravenous, subcutaneous, or oral dosing. In some cases, dosing for a wide range of subject types and health conditions can be achieved using the devices and methods disclosed herein.
    Type: Application
    Filed: July 11, 2018
    Publication date: January 10, 2019
    Applicants: University of Massachusetts, Analiza, Inc.
    Inventors: Yossi Chait, Michael J. Germain, Christopher V. Hollot, Joseph Horowitz, William Charles Vogt
  • Patent number: 10049187
    Abstract: The present invention is generally directed to methods and devices for determining dosing for a medical agent. In some embodiments, a mathematical algorithm is employed for computing erythropoiesis-stimulating agents dosing for treating anemia in a subject, e.g., a human subject. Any suitable dosing may be used, e.g., intravenous, subcutaneous, or oral dosing. In some cases, dosing for a wide range of subject types and health conditions can be achieved using the devices and methods disclosed herein.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: August 14, 2018
    Assignees: University of Massachusetts, Analiza, Inc.
    Inventors: Yossi Chait, Michael J. Germain, Christopher V. Hollot, Joseph Horowitz, William Charles Vogt
  • Publication number: 20150220700
    Abstract: The present invention is generally directed to methods and devices for determining dosing for a medical agent. In some embodiments, a mathematical algorithm is employed for computing erythropoiesis-stimulating agents dosing for treating anemia in a subject, e.g., a human subject. Any suitable dosing may be used, e.g., intravenous, subcutaneous, or oral dosing. In some cases, dosing for a wide range of subject types and health conditions can be achieved using the devices and methods disclosed herein.
    Type: Application
    Filed: September 12, 2013
    Publication date: August 6, 2015
    Applicants: UNIVERSITY OF MASSACHUSETTS, ANALIZA, INC.
    Inventors: Yossi Chait, Michael J. Germain, Christopher V. Hollot, Joseph Horowitz, William Charles Vogt
  • Patent number: 7085236
    Abstract: A method of regulating queuing delay in a network routing device independent of TCP loading is provided including receiving data packets, monitoring the data packets using token buckets and a Proportional and Integral (P+I) Active Queue Management (AQM) scheme, marking selected data packets falling within a profile, and adjusting flow preference of the monitored packets.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: August 1, 2006
    Assignee: University of Massachusetts, Amherst
    Inventors: Salomon Oldak, Wei-Bo Gong, Christopher V. Hollot, Don Towsley, Vishal Misra, Yossi Chait
  • Publication number: 20030214954
    Abstract: A method of regulating queuing delay in a network routing device independent of TCP loading is provided including receiving data packets, monitoring the data packets using token buckets and a Proportional and Integral (P+I) Active Queue Management (AQM) scheme, marking selected data packets falling within a profile, and adjusting flow preference of the monitored packets.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 20, 2003
    Inventors: Salomon Oldak, Wei-Bo Gong, Christopher V. Hollot, Don Towsley, Vishal Misra, Yossi Chait