Patents by Inventor Todd M. Zielinski

Todd M. Zielinski 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: 20220211331
    Abstract: This disclosure is directed to techniques for identifying a medical condition, such as an infection and/or a disease, from sensor data indicative of physiological parameters. In some examples, one example technique for identifying the medical condition includes process sensor data comprising data indicative of a plurality of physiological parameters for a patient comprising an impedance parameter, computing an index based upon values corresponding to at least two of the physiological parameters and based upon a comparison between the index and prediction criterion, generating, for display, output data corresponding to the comparison results, wherein the output data indicates a prediction of the medical condition in the patient if the comparison results indicate satisfaction of the prediction criterion.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 7, 2022
    Inventors: Holly S. Norman, Douglas A. Hettrick, Mark J. Phelps, Shantanu Sarkar, Todd M. Zielinski
  • Patent number: 11298547
    Abstract: A medical device is configured to generate fluid status signal data of a patient by determining impedance metrics from an impedance signal, determining cardiac electrical signal amplitudes from a cardiac electrical signal and determining a calibration relationship between the impedance metrics and cardiac electrical signal amplitudes. The medical device generates a fluid status signal data by adjusting cardiac electrical signal amplitudes according to the determined calibration relationship. The fluid status signal data may be displayed or monitored for detecting a change in the patient's fluid status.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: April 12, 2022
    Assignee: Medtronic, Inc.
    Inventors: Zhendong Song, Todd M. Zielinski, Brian B. Lee
  • Patent number: 11116456
    Abstract: In some examples, determining a heart failure status of a patient using a medical device comprising a plurality of electrodes includes determining an estimated arterial pressure waveform of the patient based on an arterial impedance signal received from at least two of the plurality of electrodes. The estimated arterial pressure waveform may comprise a plurality of arterial pressure cycles. Each of the plurality of arterial pressure cycles may correspond to a different cardiac cycle of a plurality of cardiac cycles of the patient. At least one value of an intrinsic frequency of the corresponding arterial pressure cycle may be determined for at least some of the plurality of cardiac cycles and the heart failure status of the patient may be determined based on the at least one value of the intrinsic frequency.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: September 14, 2021
    Assignee: Medtronic, Inc.
    Inventors: Douglas A. Hettrick, John E. Burnes, Tommy D. Bennett, Shantanu Sarkar, Eduardo N. Warman, Todd M. Zielinski
  • Publication number: 20210267187
    Abstract: A live catch trap having a light-based sensor mounted therein and remote communication capability. The light-based sensor may be a visual image device such as a CMOS or CCD camera that evaluates the status of the trap interior for the presence of insects and/or rodents. The camera may be activated to check the trap interior either periodically or in response to an event as detected by one or more sensors such as a motion detector, accelerometer, pressure sensor and/or temperature sensor. Alternatively, the trap may include a reflectivity sensor or a photo sensor including arrays of LEDs and photodiodes. The trap includes a microprocessor that evaluates the data collected by the light-based sensor to determine what type of activity has been sensed and then reports this information wirelessly to a remote user.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Applicant: Woodstream Corporation
    Inventors: Thomas J. Daly, Jr., Todd M. Zielinski, Kalyan C. Jinnuri, Daniel J. Wanninger, Peter Koziar, JR.
  • Publication number: 20210093220
    Abstract: Techniques for obtaining impedance data to provide an early warning for heart failure decompensation are described. An example device may be configured to measure subcutaneous impedance values, and increment an impedance score. In some examples, the device may use an adaptive threshold and fluid index in incrementing the impedance score. In some examples, the impedance score is compared to a threshold to determine a heart failure status of a patient. In some examples, may cause resets in fluid index values and/or determine positions or orientations of the device when determining the impedance score.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 1, 2021
    Inventors: Shantanu Sarkar, Todd M. Zielinski, Brian B. Lee, Val D. Eisele, III, Eduardo N. Warman, Matthew T Reinke, Ekaterina M. Ippolito
  • Publication number: 20210093253
    Abstract: Techniques for obtaining impedance data to provide an early warning for heart failure decompensation are described. An example device may be configured to measure subcutaneous impedance values, and increment an impedance score. In some examples, the device may use an adaptive threshold and fluid index in incrementing the impedance score. In some examples, the impedance score is compared to a threshold to determine a heart failure status of a patient.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 1, 2021
    Inventors: Shantanu Sarkar, Todd M. Zielinski, Brian B. Lee, Val D. Eisele, III, Eduardo N. Warman
  • Publication number: 20210093254
    Abstract: Techniques for determining a likeliness that a patient may incur an adverse health event are described. An example technique may include utilizing a probability model that uses as evidence nodes various diagnostic states of physiological parameters, which may include one or more subcutaneous impedance parameters. The probability model may include a Bayesian Network that determines a posterior probability of the adverse health event occurring within a predetermined period of time.
    Type: Application
    Filed: September 15, 2020
    Publication date: April 1, 2021
    Inventors: Shantanu Sarkar, Jodi L. Redemske, Val D. Eisele, III, Eduardo N. Warman, John E. Burnes, Jerry D. Reiland, Brian B. Lee, Todd M. Zielinski, Matthew T Reinke
  • Publication number: 20200405244
    Abstract: In some examples, determining a heart failure status of a patient using a medical device comprising a plurality of electrodes includes determining an estimated arterial pressure waveform of the patient based on an arterial impedance signal received from at least two of the plurality of electrodes. The estimated arterial pressure waveform may comprise a plurality of arterial pressure cycles. Each of the plurality of arterial pressure cycles may correspond to a different cardiac cycle of a plurality of cardiac cycles of the patient. At least one value of an intrinsic frequency of the corresponding arterial pressure cycle may be determined for at least some of the plurality of cardiac cycles and the heart failure status of the patient may be determined based on the at least one value of the intrinsic frequency.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Inventors: Douglas A. Hettrick, John E. Burnes, Tommy D. Bennett, Shantanu Sarkar, Eduardo N. Warman, Todd M. Zielinski
  • Publication number: 20200196948
    Abstract: Systems and methods include differential diagnosis for acute heart failure to provide treatment to a patient including determining whether the patient has cardiac volume overload, determining whether the patient has decreased abdominal venous system volume, and providing the appropriate treatment in response to the determinations. A multi-sensor system may be used to determine cardiac volume and abdominal venous system volume. Fluid redistribution treatment may be provided when cardiac volume overload is accompanied by a decrease in abdominal venous system volume. Fluid accumulation treatment may be provided when cardiac volume overload is not accompanied by a decrease in abdominal venous system volume.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Yong K. Cho, Tom D. Bennett, Douglas A. Hettrick, Charles P. Sperling, Paul A. Sobotka, Vinod Sharma, Eduardo N. Warman, Todd M. Zielinski
  • Publication number: 20200030612
    Abstract: A medical device is configured to generate fluid status signal data of a patient by determining impedance metrics from an impedance signal, determining cardiac electrical signal amplitudes from a cardiac electrical signal and determining a calibration relationship between the impedance metrics and cardiac electrical signal amplitudes. The medical device generates a fluid status signal data by adjusting cardiac electrical signal amplitudes according to the determined calibration relationship. The fluid status signal data may be displayed or monitored for detecting a change in the patient's fluid status.
    Type: Application
    Filed: July 25, 2019
    Publication date: January 30, 2020
    Inventors: Zhendong Song, Todd M. Zielinski, Brian B. Lee
  • Patent number: 10537266
    Abstract: A system and method is provided to measure intrathoracic complex impedance and to identify and indicate disease conditions based on the impedance measurements. Multiple impedance vectors may be taken into account, and an optimal vector may be selected to provide the most useful impedance measurement for the identification and indication of disease conditions.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: January 21, 2020
    Assignee: Medtronic, Inc.
    Inventors: Todd M Zielinski, Douglas A Hettrick, Shantanu Sarkar
  • Publication number: 20190336076
    Abstract: In some examples, determining a heart failure status includes using an implantable medical device configured for subcutaneous implantation and comprising a plurality of electrodes and an optical sensor. Processing circuitry of a system comprising the device may determine, for a patient, a current tissue oxygen saturation value based on a signal received from the at least one optical sensor, a current tissue impedance value based on a subcutaneous tissue impedance signal received from the electrodes, and a current pulse transit time value based on a cardiac electrogram signal received from the electrodes and at least one of the signal received from the optical sensor and the subcutaneous tissue impedance signal. The processing circuitry may further compare the current tissue oxygen saturation value, current tissue impedance value, and current pulse transit time value to corresponding baseline values, and determine the heart failure status of the patient based on the comparison.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 7, 2019
    Inventors: Jonathan L. Kuhn, James K. Carney, Vinod Sharma, Shantanu Sarkar, Todd M. Zielinski, Tommy D. Bennett
  • Patent number: 10182729
    Abstract: The exemplary systems and methods may monitor one or more signals to be used to assess the hemodynamic status of a patient. The one or more signals may be used to calculate, or determine, a plurality of pulse transit times. The plurality of pulse transit times may be used to determine hemodynamic status values that may be indicative of a patient's aggregate hemodynamic status.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 22, 2019
    Assignee: Medtronics, Inc.
    Inventors: Todd M. Zielinski, David A. Anderson, Tom D. Bennett, James K. Carney, Can Cinbis, Yong K. Cho, Jonathan L. Kuhn, Brian B. Lee, Richard J. O'Brien, Eduardo N. Warman, Vinod Sharma
  • Publication number: 20180249696
    Abstract: A live catch trap having a light-based sensor mounted therein and remote communication capability is provided. The light-based sensor may be a visual image device such as a CMOS or CCD camera that evaluates the status of the trap interior for the presence of insects and/or rodents. The camera may be activated to check the trap interior either periodically or in response to an event as detected by one or more sensors such as a motion detector, accelerometer, pressure sensor and/or temperature sensor. Alternatively, the trap may include a reflectivity sensor or a photo sensor including arrays of LEDs and photodiodes. The trap includes a microprocessor that evaluates the data collected by the light-based sensor to determine what type of activity has been sensed and then reports this information wirelessly to a remote user.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Applicant: WOODSTREAM CORPORATION
    Inventors: Thomas J. DALY, JR., Todd M. Zielinski, Kalyan C. Jinnuri, Daniel J. Wanninger, Peter KOZIAR, JR.
  • Publication number: 20180055386
    Abstract: The exemplary systems and methods may monitor one or more signals to be used to assess the hemodynamic status of a patient. The one or more signals may be used to calculate, or determine, a plurality of pulse transit times. The plurality of pulse transit times may be used to determine hemodynamic status values that may be indicative of a patient's aggregate hemodynamic status.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Todd M. Zielinski, David A. Anderson, Tom D. Bennett, James K. Carney, Can Cinbis, Yong K. Cho, Jonathan L. Kuhn, Brian B. Lee, Richard J. O'Brien, Eduardo N. Warman, Vinod Sharma
  • Publication number: 20170238838
    Abstract: A system and method is provided to measure intrathoracic complex impedance and to identify and indicate disease conditions based on the impedance measurements. Multiple impedance vectors may be taken into account, and an optimal vector may be selected to provide the most useful impedance measurement for the identification and indication of disease conditions.
    Type: Application
    Filed: May 8, 2017
    Publication date: August 24, 2017
    Inventors: Todd M. Zielinski, Douglas A. Hettrick, Shantanu Sarkar
  • Patent number: 9707399
    Abstract: Methods and/or devices used in delivering cardiac resynchronization therapy based on a plurality of device parameters (e.g., A-V delay, V-V delay, etc.) are optimized by setting a device parameter based on selection data. The selection data may be acquired by acquiring temporal fiducial points (e.g., heart sounds) associated with at least a part of a systolic portion of at least one cardiac cycle and/or temporal fiducial points associated with at least a part of a diastolic portion of the at least one cardiac cycle for each of a plurality of electrode vector configurations, and extracting measurements from the intracardiac impedance signal acquired for each of a plurality of electrode vector configurations based on the temporal fiducial points. The acquired selection data may be scored and used to optimize the device parameter.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 18, 2017
    Assignee: Medtronic, Inc.
    Inventors: Todd M. Zielinski, Yong Kyun Cho, Douglas Hettrick, Xusheng Zhang
  • Patent number: 9682240
    Abstract: Methods and/or devices are disclosed herein for monitoring cardiac impedance signal and delivering therapy to a patient's heart based upon the monitored cardiac impedance.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 20, 2017
    Assignee: Medtronic, Inc.
    Inventors: Douglas A. Hettrick, Todd M. Zielinski, Eduardo Warman, Shantanu Sarkar
  • Patent number: 9642558
    Abstract: A system and method is provided to measure intrathoracic complex impedance and to identify and indicate disease conditions based on the impedance measurements. Multiple impedance vectors may be taken into account, and an optimal vector may be selected to provide the most useful impedance measurement for the identification and indication of disease conditions.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: May 9, 2017
    Assignee: Medtronic, Inc.
    Inventors: Todd M Zielinski, Douglas A Hettrick, Shantanu Sarkar
  • Patent number: 9597511
    Abstract: An implantable medical device and associated method to determine an optimal control parameter setting for controlling a cardiac therapy that includes a therapy delivery module to deliver cardiac pacing signals at a plurality of pacing rates, and an admittance measurement module to determine admittance signals associated with each of the plurality of pacing rates. A control unit determines metrics of hemodynamic performance corresponding to each of the plurality of pacing rates in response to the determined admittance signals, identifies pacing rates of the plurality of pacing rates as rejected rates in response to the determined metrics of hemodynamic performance, and determines a pacing rate of the plurality of pacing rates as an optimal rate for delivering the cardiac therapy in response to the identified pacing rates.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: March 21, 2017
    Assignee: Medtronic, Inc.
    Inventors: Yong K. Cho, Douglas A. Hettrick, Todd M. Zielinski