Patents by Inventor Ervin Sejdic

Ervin Sejdic 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: 20240041422
    Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 8, 2024
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: MICHAEL A. ROTHFUSS, ERVIN SEJDIC, MICHAEL L. GIMBEL, MURAT AKCAKAYA
  • Patent number: 11883180
    Abstract: Disclosed herein are methods, systems, and devices for identifying increased likelihood of non-ST elevation myocardial infarction (NSTEMI) in a patient based on ECG data. The methods can include determining based on the ECG data that the patient lacks ST elevation (STE) and that the patient exhibits a ventricular repolarization dispersion (VRD) score that exceeds a predetermined threshold value. The VRD score can be based in part on a T wave complexity ratio that serves as a temporal marker of VRD for the patient. Other markers of spatial and time qualities of repolarization can also be included in the VRD score. An elevated VRD score in the absence of STE can indicate a likelihood of NSTEMI in the patient and a potential major adverse cardiac event.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: January 30, 2024
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Salah Al-Zaiti, Ervin Sejdic, Clifton W. Callaway
  • Patent number: 11877885
    Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 23, 2024
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel, Murat Akcakaya
  • Publication number: 20220151493
    Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: MICHAEL A. ROTHFUSS, ERVIN SEJDIC, MICHAEL L. GIMBEL
  • Patent number: 11334731
    Abstract: A method of decoding a barcode includes capturing an image of the barcode, dividing the image of the barcode into a plurality of rows and columns, each column corresponding to one encoded character of the barcode, using a number of trained image classifiers on each row to determine a predicted character for each column of the row, for each column, determining an output character for the column based on each of the predicted characters associated with the column, and for each column, outputting the output character. Also, a system for decoding a barcode that implements the method.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 17, 2022
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Justin H Hawks, Ervin Sejdic
  • Patent number: 11272840
    Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: March 15, 2022
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel
  • Patent number: 11033221
    Abstract: In a method and apparatus for swallowing impairment detection, a candidate executes one or more swallowing events, and dual axis accelerometry data is acquired representative thereof. Upon feature extraction and classification, vibrational data acquired in respect of each swallowing event is classified as indicative of one of normal or possibly impaired swallowing.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: June 15, 2021
    Assignees: University Health Network, Holland Bloorview Kids Rehabilitation
    Inventors: Thomas T. K. Chau, Catriona Steele, Ervin Sejdic, Bruno C. Maruzzo
  • Publication number: 20210124886
    Abstract: A method of decoding a barcode includes capturing an image of the barcode, dividing the image of the barcode into a plurality of rows and columns, each column corresponding to one encoded character of the barcode, using a number of trained image classifiers on each row to determine a predicted character for each column of the row, for each column, determining an output character for the column based on each of the predicted characters associated with the column, and for each column, outputting the output character. Also, a system for decoding a barcode that implements the method.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 29, 2021
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: JUSTIN H HAWKS, ERVIN SEJDIC
  • Publication number: 20210100469
    Abstract: Disclosed herein are methods, systems, and devices for identifying increased likelihood of non-ST elevation myocardial infarction (NSTEMI) in a patient based on ECG data. The methods can include determining based on the ECG data that the patient lacks ST elevation (STE) and that the patient exhibits a ventricular repolarization dispersion (VRD) score that exceeds a predetermined threshold value. The VRD score can be based in part on a T wave complexity ratio that serves as a temporal marker of VRD for the patient. Other markers of spatial and time qualities of repolarization can also be included in the VRD score. An elevated VRD score in the absence of STE can indicate a likelihood of NSTEMI in the patient and a potential major adverse cardiac event.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 8, 2021
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Salah Al-Zaiti, Ervin Sejdic, Clifton W. Callaway
  • Patent number: 10869629
    Abstract: A method of classifying a swallow of a subject includes obtaining vibration data that is based on and indicative of a number of vibrations resulting from the swallow, and using a computer implemented deep learning classifier to classify the swallow based on the vibration data. Also, a system for classifying a swallow of a subject includes a computing device implementing a deep learning classifier. The computing device includes a processor apparatus structured and configured to receive vibration data that is based on and indicative of a number of vibrations resulting from the swallow, and use the deep learning classifier to classify the swallow based on the vibration data. The deep learning classifier may comprise a single layer or a multi-layer Deep Belief network.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: December 22, 2020
    Assignee: University of Pittsburgh-Of die Commonwealth System of Higher Education
    Inventors: Ervin Sejdic, Amro El-Jaroudi, James Coyle, Joshua Dudik, Mingui Sun, Zhi-Hong Mao
  • Patent number: 10820822
    Abstract: Disclosed herein are methods, systems, and devices for identifying increased likelihood of non-ST elevation myocardial infarction (NSTEMI) in a patient based on ECG data. The methods can include determining based on the ECG data that the patient lacks ST elevation (STE) and that the patient exhibits a ventricular repolarization dispersion (VRD) score that exceeds a predetermined threshold value. The VRD score can be based in part on a T wave complexity ratio that serves as a temporal marker of VRD for the patient. Other markers of spatial and time qualities of repolarization can also be included in the VRD score. An elevated VRD score in the absence of STE can indicate a likelihood of NSTEMI in the patient and a potential major adverse cardiac event.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: November 3, 2020
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Salah Al-Zaiti, Ervin Sejdic, Clifton W. Callaway
  • Publication number: 20200222026
    Abstract: A system for monitoring free flap patency includes transmit and receive transducers structured to be coupled to a blood vessel, and a plurality of circuitry modules structured to insonify a blood flow volume within the blood vessel and receive a scattered signal from the receive transducer, extract a baseband Doppler blood flow signal, VBASEBAND, from the scattered signal, extract a plurality of features from VBASEBAND, and classify the plurality of features and generate a binary signal based on the classification of the plurality of features, wherein the binary signal will have a first state responsive to the classification of the plurality of features indicating that a flow rate within the blood vessel is less than a predetermined level and a second state responsive to the classification of the plurality of features indicating the flow rate within the blood vessel is greater than or equal to the predetermined level.
    Type: Application
    Filed: July 20, 2018
    Publication date: July 16, 2020
    Applicant: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel, Murat Akcakaya
  • Publication number: 20190167182
    Abstract: A method of classifying a swallow of a subject includes obtaining vibration data that is based on and indicative of a number of vibrations resulting from the swallow, and using a computer implemented deep learning classifier to classify the swallow based on the vibration data. Also, a system for classifying a swallow of a subject includes a computing device implementing a deep learning classifier. The computing device includes a processor apparatus structured and configured to receive vibration data that is based on and indicative of a number of vibrations resulting from the swallow, and use the deep learning classifier to classify the swallow based on the vibration data. The deep learning classifier may comprise a single layer or a multi-layer Deep Belief network.
    Type: Application
    Filed: August 15, 2017
    Publication date: June 6, 2019
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Ervin Sejdic, Amro El-Jaroudi, James Coyle, Joshua Dudik, Mingui Sun, Zhi-Hong Mao
  • Publication number: 20190125189
    Abstract: A system and method for wirelessly and passively powering and/or interrogating an implanted stent using a touch probe assembly through a near-field electrical connection not over an air interface. The stent apparatus includes at least one stent member functioning as an antenna and an electronics module coupled to the at least one stent member. Also, a wirelessly and passively powered power meter for use with implanted stents. The power meter includes an electronics module coupled to a stent member, wherein the electronics module includes a programmable oscillator structured to generate an oscillating signal that is proportional to an amount of AC power received by the implantable stent apparatus power meter through the stent member.
    Type: Application
    Filed: May 5, 2017
    Publication date: May 2, 2019
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Michael A. Rothfuss, Ervin Sejdic, Michael L. Gimbel
  • Patent number: 10080624
    Abstract: A method of providing RF energy to a wireless transponder device includes outputting primary RF energy in a form wherein the primary RF energy comprises a plurality of RF bursts, with each consecutive pair of the RF bursts being separated by an associated time interval, and outputting secondary continuous wave RF energy in between each of the RF bursts of the primary RF energy during at least a portion of each of the associated time intervals. Also, a reader device implementing this method.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: September 25, 2018
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Marlin H. Mickle, Joshua R. Stachel, Kara Nicole-Simms Bocan, Ervin Sejdic
  • Publication number: 20180055397
    Abstract: Disclosed herein are methods, systems, and devices for identifying increased likelihood of non-ST elevation myocardial infarction (NSTEMI) in a patient based on ECG data. The methods can include determining based on the ECG data that the patient lacks ST elevation (STE) and that the patient exhibits a ventricular repolarization dispersion (VRD) score that exceeds a predetermined threshold value. The VRD score can be based in part on a T wave complexity ratio that serves as a temporal marker of VRD for the patient. Other markers of spatial and time qualities of repolarization can also be included in the VRD score. An elevated VRD score in the absence of STE can indicate a likelihood of NSTEMI in the patient and a potential major adverse cardiac event.
    Type: Application
    Filed: April 12, 2016
    Publication date: March 1, 2018
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Salah Al-Zaiti, Ervin Sejdic, Clifton W. Callaway
  • Publication number: 20180000403
    Abstract: In a method and apparatus for swallowing impairment detection, a candidate executes one or more swallowing events, and dual axis accelerometry data is acquired representative thereof. Upon feature extraction and classification, vibrational data acquired in respect of each swallowing event is classified as indicative of one of normal or possibly impaired swallowing.
    Type: Application
    Filed: May 22, 2017
    Publication date: January 4, 2018
    Inventors: Thomas T.K. Chau, Catriona Steele, Ervin Sejdic, Bruno C. Maruzzo
  • Publication number: 20170251145
    Abstract: A passively powered image capture device includes a remote execution unit structured to receive commands from a base station and an imaging device coupled to the remote execution unit. The imaging device is structured to be controlled by the remote execution unit based on the commands received by the remote execution unit. The passively powered image capture device also includes an antenna and energy harvesting circuitry coupled to the antenna, the remote execution unit and the imaging device. The energy harvesting circuitry is structured to convert RF energy received by the antenna to DC energy for powering the remote execution unit and the imaging device.
    Type: Application
    Filed: September 21, 2015
    Publication date: August 31, 2017
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTE M OF HIGHER EDUCATION
    Inventors: MARLIN H. MICKLE (DECEASED), ZIQUN ZHOU, KARA NICOLE-SIMMS BOCAN, VYASA SAI, AJAY OGIRALA, ERVIN SEJDIC, NICHOLAS G. FRANCONI
  • Patent number: 9687191
    Abstract: A method and an apparatus for swallowing impairment detection acquire dual axis accelerometry data representative of one or more swallowing events executed by a candidate. Upon feature extraction and classification, vibrational data acquired in respect of each swallowing event is classified as indicative of one of normal or possibly impaired swallowing. Computer-readable media comprising statements and instructions for implementation by a processing device are also described in facilitating swallowing impairment detection respective to candidate swallowing events.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: June 27, 2017
    Assignees: Holland Bloorview Kids Rehabilitation Hospital, University Health Networks
    Inventors: Thomas T. K. Chau, Catriona Steele, Ervin Sejdic, Bruno C. Maruzzo
  • Publication number: 20160135917
    Abstract: A method of providing RF energy to a wireless transponder device includes outputting primary RF energy in a form wherein the primary RF energy comprises a plurality of RF bursts, with each consecutive pair of the RF bursts being separated by an associated time interval, and outputting secondary continuous wave RF energy in between each of the RF bursts of the primary RF energy during at least a portion of each of the associated time intervals. Also, a reader device implementing this method.
    Type: Application
    Filed: May 12, 2014
    Publication date: May 19, 2016
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: MARLIN H. MICKLE, JOSHUA R. STACHEL, KARA NICOLE-SIMMS BOCAN, ERVIN SEJDIC