Patents by Inventor David A. Borkholder

David A. Borkholder 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: 20210219924
    Abstract: An integrated bioinstrumentation system, combining an accurate and robust quasi 1D computational model with experimental peripheral measurements, is designed to extract information on other quantities of interest, for which the direct measurements are not feasible. The system is able to quantify and visualize the distributions of a cardiac output (CO), aortic blood pressure (BP), flow, velocity, and aortic arterial compliance, based on a peripheral analysis of a pulse transit time (PTT) measured at the available peripheral sites. A preliminary calibration stage extracts the arterial properties from simultaneous measurements of a pulse transit time, and an upper arm blood pressure. Obtained transfer functions, linking noninvasive peripheral measurements to the aortic pressure, cardiac output, aortic compliance and others serve to quantify the indicators of cardiac morbidity and mortality.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Applicant: Rochester Institute of Technology
    Inventors: Alexander S. Liberson, Yashar Seyed Vahedein, David A. Borkholder
  • Patent number: 11035498
    Abstract: A capsule is disclosed which includes a flexible outer shell capable of transforming into an asymmetric shape; an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles, wherein the magnetic particles can move in response to an applied magnetic field. A valve system includes an in-line valve sized to fit within a flow channel including a capsule having a flexible outer shell containing an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles; and a magnetic field source disposed about the exterior wall of the channel.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 15, 2021
    Assignee: Rochester Institute of Technology
    Inventors: Ahmed Alfadhel, Meng-Chun Hsu, David A. Borkholder
  • Patent number: 11020524
    Abstract: In one embodiment, a peristaltic micropump comprising a substrate having a first side and a second side, a microtube that extends across the first side of the substrate, and multiple pump actuators formed on the first side of the substrate and positioned adjacent to the microtube at discrete, spaced positions along the length of the microtube, wherein the micropump is configured to sequentially actuate the pump actuators so as to create peristaltic action that drives fluid contained in the microtube along the length of the tube.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: June 1, 2021
    Assignees: University of South Florida, Rochester Institute of Technology
    Inventors: David A. Borkholder, Farzad Forouzandeh, Robert Nash Carter, Denis Roger Cormier, Joseph P. Walton, Robert Dana Frisina
  • Patent number: 10561341
    Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: February 18, 2020
    Assignee: BlackBox Biometrics, Inc.
    Inventors: David A. Borkholder, Matthew Kenyon, Ryan Ramplin, Michael H. Ostertag, Kim Sherman, Matthew Wellman, Micah Harrison
  • Publication number: 20190322111
    Abstract: An approach to printing a nickel precursor ink on a wide range of substrates for electronics and magnetic applications is disclosed. The nickel ink reduces to elemental nickel following heating. The ink was printed using an ultrasonic aerosol printing technique. By sintering the nickel precursor ink in the presence of a homogeneous magnetic field, the reduced nickel complex formed continuously aligned nickel nanofibers axially aligned with the direction of the magnetic field. The fabrication of aligned interlayered nanofiber films provides opportunities to produce structures with enhanced isotropic electrical and magnetic properties. The resistivity of the film was found to be as low as 0.56 m?·cm, and the saturation magnetization was measured to be 30 emu/g, which is comparable to bulk Ni. Magnetic anisotropy was induced with an easy axis along the direction of the applied magnetic field with soft magnetic properties.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 24, 2019
    Applicant: Rochester Institute of Technology
    Inventors: Chaitanya G. Mahajan, Denis Cormier, Mark Irving, Scott Williams, David Borkholder, Ahmed Alfadhel
  • Publication number: 20190231271
    Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Nicholas J. Conn, Masoumeh Haghpanahi
  • Patent number: 10292658
    Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 21, 2019
    Assignee: Rochester Institute of Technology
    Inventors: David A. Borkholder, Nicholas J. Conn, Masoumeh Haghpanahi
  • Patent number: 10292445
    Abstract: A dosimetry apparatus includes at least one sensor in a housing, a cover configured to permit compression waves to pass through, the cover is seated over the at least one sensor, and a dosimetry processing device with a memory. The dosimetry processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the at least one sensor; storing the readings with a time and date stamp when obtained; conducting an analysis based on the obtained readings; and outputting at least one of the stored readings or the conducted analysis.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 21, 2019
    Assignee: ROCHESTER INSTITUTE OF TECHNOLOGY
    Inventors: David A. Borkholder, Werner Fassler, Andrew Blair, Kim Sherman, Derek DeBusschere
  • Publication number: 20190083045
    Abstract: Disclosed are methods for determining physiological parameters of an individual including blood pressure, arterial compliance, flow velocity, and pressure wave velocity. A noninvasive method for determining the blood pressure of a patient is based on measurements of flow velocity, pulse wave velocity and arterial compliance. A noninvasive method for determining the arterial compliance of a patient is based on measurements of blood pressure, flow velocity, and pulse wave velocity.
    Type: Application
    Filed: November 17, 2015
    Publication date: March 21, 2019
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Alexander S. Liberson, Jeffrey S. Lillie, Steven W. Day
  • Patent number: 10086336
    Abstract: Ultra-thin nanometer-sealer freestanding polymeric membranes and methods for producing ultra-thin nanometer-scale freestanding recast membranes and ultra-thin nanometer-scale freestanding cross-linked membranes with solid internal backbone are disclosed.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 2, 2018
    Assignee: Rochester Institute of Technology
    Inventors: Jirachai Getpreecharsawas, David A. Borkholder
  • Publication number: 20180269378
    Abstract: Material properties are manipulated using rapid pulse application of energy in combination with applied electric or magnetic fields. When sintering, annealing or crystallizing a target film, the pulse repetition cycle can be constrained to ensure material temperature rises above and falls below the Curie temperature before the next energy pulse. This process results in enhanced material properties as compared to traditional techniques having a single, slow temperature excursion and subsequent application of the applied external field.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 20, 2018
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Jing Ouyang, Denis R. Cormier, Ahmed Alfadhel
  • Publication number: 20180156356
    Abstract: A capsule is disclosed which includes a flexible outer shell capable of transforming into an asymmetric shape; an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles, wherein the magnetic particles can move in response to an applied magnetic field. A valve system includes an in-line valve sized to fit within a flow channel including a capsule having a flexible outer shell containing an internal medium encapsulated by the outer shell, the medium including a plurality of magnetic particles; and a magnetic field source disposed about the exterior wall of the channel.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 7, 2018
    Applicant: Rochester Institute of Technology
    Inventors: Ahmed Alfadhel, Meng-Chun Hsu, David A. Borkholder
  • Publication number: 20170354331
    Abstract: A noninvasive method for monitoring the blood pressure and arterial compliance of a patient based on measurements of a flow velocity and a pulse wave velocity is described. An embodiment uses a photoplethysmograph and includes a method to monitor the dynamic behavior of the arterial blood flow, coupled with a hemodynamic mathematical model of the arterial blood flow motion in a fully nonlinear vessel. A derived mathematical model creates the patient specific dependence of a blood pressure versus PWV and blood velocity, which allows continuous monitoring of arterial blood pressure.
    Type: Application
    Filed: November 17, 2015
    Publication date: December 14, 2017
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Alexander S. Liberson, Jeffrey S. Lillie
  • Patent number: 9729994
    Abstract: A system and method for providing assistive listening for a plurality of listeners in an environment including a plurality of acoustic sources. A microphone array in combination with an acoustic beamforming processor configured to receive the acoustic signals within the environment and to process the acoustic signals based upon a target location of an acoustic signal selected on a listener-controlled interface device to generate a steered beam pattern. The acoustic beamforming processor further configured to transmit the steered beam pattern to the listener-controlled interface device based on the target location selected. The listener-controlled interface device configured to provide the steered beam pattern to an ear-level transducer of a hearing-impaired listener.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 8, 2017
    Assignees: University of South Florida, Rochester Institute of Technology
    Inventors: David A. Eddins, David A. Borkholder, Vincent J. Amuso
  • Patent number: 9668689
    Abstract: A method including a dosimetry device having at least one sensor in a housing and a dosimetry processing device with a memory. The dosimtery processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the sensor; storing the readings; conducting an analysis of the stored readings to determine an injury risk assessment; and outputting at least one of the conducted analysis of the determined injury risk assessment or the stored readings.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: June 6, 2017
    Assignees: Rochester Institute of Technology, Defense Advanced Research Projects Agency
    Inventors: David A. Borkholder, Gregory T. A. Kovacs, Jeffrey Rogers
  • Publication number: 20170136419
    Abstract: Ultra-thin nanometer-sealer freestanding polymeric membranes and methods for producing ultra-thin nanometer-scale freestanding recast membranes and ultra-thin nanometer-scale freestanding cross-linked membranes with solid internal backbone are disclosed.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: Rochester Institute of Technology
    Inventors: Jirachai Getpreecharsawas, David A. Borkholder
  • Publication number: 20170065210
    Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 9, 2017
    Inventors: David A. Borkholder, Matthew Kenyon, Ryan Ramplin, Michael H. Ostertag, Kim Sherman, Matthew Wellman, Micah Harrison
  • Publication number: 20160374619
    Abstract: Apparatus, system and method for medical analysis of a seated individual, includes determining the aortic valve opening; the PTT; and calculating the PWV. Determining the aortic valve opening includes collecting BCG data while sitting on a seat and determining the timing of the aortic valve opening, taking into account posture. Measuring the aortic pulse wave transit time includes collecting BCG data while sitting on a seat capable of measuring changes in apparent weight; determining the timing of the aortic valve opening; detecting the arrival of the pulse wave at the end point; and measuring the relative timings of the two events. Calculating the PWV includes determining a length of the arterial segment through which a pulse wave is to be measured between a start point and an end point; and dividing the determined length of the arterial segment by the PTT.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Nicholas J. Conn, Masoumeh Haghpanahi
  • Publication number: 20160228045
    Abstract: A method including a dosimetry device having at least one sensor in a housing and a dosimetry processing device with a memory. The dosimtery processing device is coupled to the at least one sensor in the housing. The dosimetry processing device is configured to execute programmed instructions stored in the memory comprising: obtaining readings from the sensor; storing the readings; conducting an analysis of the stored readings to determine an injury risk assessment; and outputting at least one of the conducted analysis of the determined injury risk assessment or the stored readings.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Applicant: Rochester Institute of Technology
    Inventors: David A. Borkholder, Gregory T.A. Kovacs, Jeffrey Rogers
  • Patent number: 9380961
    Abstract: An impact detection device for detecting impacts to a body part of a user and various supporting systems are discussed. In an example, an impact detect device can include a circuit board, a component having a first section and a second section, a battery, and a molding for housing the circuit boat, the battery and the component. The circuit board can include impact detection circuitry including at least two sensors and a communication circuit. A zone of reduced rigidity can connect the first and second sections of the component, with the circuit board secured to the first section. The battery can be secured to the second section of the component allowing for flex relative to the circuit board. The molding can be shaped and dimensioned for mounting to a body part of the user.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 5, 2016
    Assignee: BlackBox Biometrics, Inc.
    Inventors: David A. Borkholder, Matthew Kenyon, Ryan Ramplin, Michael H. Ostertag, Kim Sherman, Matthew Wellman, Micah Harrison