Patents by Inventor Carlos A. Ricci

Carlos A. Ricci 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: 10367476
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 30, 2019
    Assignee: Vios Medical, Inc.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20180166089
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Application
    Filed: August 14, 2017
    Publication date: June 14, 2018
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Patent number: 9734838
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 15, 2017
    Assignee: Vios Medical Singapore Pte. Ltd.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20170112450
    Abstract: Medical devices and methods for making and using medical devices are disclosed. A method for removing an artifact of a biological reference signal present in a biological source signal may comprise sensing a biological reference signal with one or more electrodes and sensing a biological source signal, wherein the biological source signal comprises an artifact of the biological reference signal. The method may further comprise determining, based on the biological reference signal, the artifact of the biological reference signal and subtracting the artifact of the biological reference signal from the sensed biological source signal.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Inventors: Vladimir V. Kovtun, Carlos A. Ricci, Pramodsingh H. Thakur, Shibaji Shome
  • Patent number: 9530425
    Abstract: A system and method for representing quasi-periodic (“qp”) waveforms, for example, representing a plurality of limited decompositions of the qp waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. Data-structure attributes are created and used to reconstruct the qp waveform. Features of the qp wave are tracked using pattern-ecognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g., lowest frequency “rate” component) that varies over time (by a factor of two to three) many overlapping filters use bandpass and overlap parameters that allow tracking the component's frequency version on changing quarter-phase basis.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: December 27, 2016
    Assignee: Vios Medical Singapore Pte. Ltd.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20160232913
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Application
    Filed: April 19, 2016
    Publication date: August 11, 2016
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Patent number: 9319028
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: April 19, 2016
    Assignee: Vios Medical Singapore Pte. Ltd.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20160087603
    Abstract: The present invention provides a system and method for representing quasi-periodic (“qp”) waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. These decompositions are stored into a data structure having a plurality of attributes. Optionally, these attributes are used to reconstruct the qp waveform, or patterns or features of the qp wave can be determined by using various pattern-recognition techniques. Some embodiments provide a system that uses software, embedded hardware or firmware to carry out the above-described method. Some embodiments use a computer-readable medium to store the data structure and/or instructions to execute the method.
    Type: Application
    Filed: December 7, 2015
    Publication date: March 24, 2016
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Patent number: 9209782
    Abstract: The present invention provides a system and method for representing quasi-periodic (“qp”) waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. These decompositions are stored into a data structure having a plurality of attributes. Optionally, these attributes are used to reconstruct the qp waveform, or patterns or features of the qp wave can be determined by using various pattern-recognition techniques. Some embodiments provide a system that uses software, embedded hardware or firmware to carry out the above-described method. Some embodiments use a computer-readable medium to store the data structure and/or instructions to execute the method.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: December 8, 2015
    Assignee: Vios Medical Singapore Pte. Ltd.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20140289297
    Abstract: A system and method for representing quasi-periodic (“qp”) waveforms, for example, representing a plurality of limited decompositions of the qp waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. Data-structure attributes are created and used to reconstruct the qp waveform. Features of the qp wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g., lowest frequency “rate” component) that varies over time (by a factor of two to three) many overlapping filters use bandpass and overlap parameters that allow tracking the component's frequency version on changing quarter-phase basis.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 25, 2014
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Publication number: 20140278382
    Abstract: A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Patent number: 8700138
    Abstract: Approaches for determining threshold values for one or more arrhythmia rate zones and/or the number of rate zones are described. A probability function for heart rate is determined using collected and measured heart rate values. One or more heart rate probability values are selected. Thresholds for arrhythmia rate zones are determined from the probability function based on the selected probability values. Determining the rate zone thresholds may involve determining a threshold for a lower rate limit and/or determining one or more tachyarrhythmia rate zone thresholds. The number of rate zones may also be determined based on the probability function.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 15, 2014
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Shelley M. Cazares, Carlos A. Ricci, Jaeho Kim
  • Patent number: 8532762
    Abstract: Cardiac arrhythmias are classified based on the morphology of the arrhythmia episode beats. Templates are formed using morphological features of the cardiac beats of the episode. The arrhythmia episode is classified as a monomorphic tachyarrhythmia or polymorphic tachyarrhythmia based on the one or more templates. The arrhythmia episode may be classified based on a number templates formed from the arrhythmia episode. The templates are formed by determining a measure of similarity between morphological features of a cardiac beat to a template. The similarities can be determined based on a pairing rule that determines which beat morphologies are compared. Selection of therapy for treating the arrhythmia episode may depend on the historical success of a therapy at mitigating previous arrhythmias of the same type as the arrhythmia episode.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: September 10, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Shelley Cazares, Carlos Ricci, Dan Li, Yayun Lin, Yi Zhang, Jaeho Kim, Joseph Bocek
  • Patent number: 8524646
    Abstract: A multi-compartment pouch comprising a first compartment and a second compartment, wherein, the first compartment comprises a solid composition, wherein the solid composition comprises; an oxygen bleach source; a bleach activator; a polycarboxylate polymer; and the second compartment comprises a liquid composition, wherein the liquid composition comprises; a low molecular weight solvent.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: September 3, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Carlo Ricci, Luca Sarcinelli
  • Patent number: 8409107
    Abstract: Estimating a frequency of a sampled cardiac rhythm signal and classifying the rhythm. The received signal is sampled and transformed into a curvature series. A lobe in the curvature series corresponds to a characteristic point in the sampled series. Characteristic points are selected based on a time of a lobe in the curvature series and, in one embodiment, an amplitude of the signal at the time of the lobe. A frequency of the sampled series is estimated by autocorrelating a function of the series of the characteristic points. In one embodiment, the function is a time difference function. The rhythm is classified by plotting the timewise proximity of characteristic points derived from an atrial signal with characteristic points derived from a ventricular signal. Regions of the plot are associated with a particular rhythm and the grouping of the data corresponds to the classification.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: April 2, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Robert J. Sweeney, Carlos Ricci
  • Patent number: 8386244
    Abstract: The present invention provides a system and method for representing quasi-periodic (“qp”) waveforms comprising, representing a plurality of limited decompositions of the qp waveform, wherein each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the qp waveform. These decompositions are stored into a data structure having a plurality of attributes. Optionally, these attributes are used to reconstruct the qp waveform, or patterns or features of the qp wave can be determined by using various pattern-recognition techniques. Some embodiments provide a system that uses software, embedded hardware or firmware to carry out the above-described method. Some embodiments use a computer-readable medium to store the data structure and/or instructions to execute the method.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: February 26, 2013
    Assignee: Digital Intelligence, L.L.C.
    Inventors: Carlos A. Ricci, Vladimir V. Kovtun
  • Patent number: 8380293
    Abstract: Cardiac monitoring and/or stimulation methods and systems provide monitoring, diagnosis, and defibrillation and/or pacing therapies. A signal processor receives a plurality of composite signals associated with a plurality of sources, performs a source separation, and produces one or more cardiac signal vectors associated with all or a portion of one or more cardiac activation sequences based on the source separation. A method of signal separation involves detecting a change in a characteristic of the cardiac signal vector relative to a baseline. One or more vectors and/or activation sequences may be selected, and information associated with the vectors and/or activation sequences may be stored and tracked.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: February 19, 2013
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yi Zhang, Scott Meyer, Aaron McCabe, Jeffrey E. Stahmann, Yinghong Yu, Carlos A Ricci
  • Patent number: 8321002
    Abstract: Cardiac monitoring and/or stimulation methods and systems provide for monitoring, diagnosing, defibrillation and pacing therapies, or a combination of these capabilities, including cardiac systems incorporating or cooperating with neuro-stimulating devices, drug pumps, or other therapies. Embodiments of the present invention relate generally to implantable medical devices employing automated cardiac activation sequence monitoring and/or tracking for arrhythmia discrimination. Embodiments of the invention are directed to devices and methods involving sensing a plurality of composite cardiac signals using a plurality of implantable electrodes. A source separation is performed using the sensed plurality of composite cardiac signals and the separation produces one or more cardiac signal vectors associated with one or more cardiac activation sequences that is indicative of ischemia. A change of the one or more cardiac signal vectors is detected using the one or more cardiac signal vectors.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 27, 2012
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Yi Zhang, Carlos A. Ricci, Jeffrey E. Stahmann, Aaron McCabe, Scott Meyer, Yinghong Yu
  • Patent number: 8306615
    Abstract: An implantable cardiac rhythm management (CRM) device delivers a chronic therapy while detecting an ischemic state. When the ischemic state indicates the occurrence of an ischemic event, the implantable CRM device delivers a post-ischemia therapy. The post-ischemia therapy and the chronic therapy are adjusted using feedback control with the ischemic state and parameters indicative of the effectiveness of the post-ischemic therapy and the effectiveness of the chronic therapy as inputs.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: November 6, 2012
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Marina V. Brockway, Joseph M. Pastore, Yi Zhang, Carlos Ricci, Allan C. Shuros, Rodney W. Salo
  • Patent number: 8086304
    Abstract: In a method for determining a cardiac condition, a sensed physiologic signal for a period of time including multiple cardiac cycles is received. Using the received physiologic data, a heart beat frequency to be used as a reference frequency is determined. A plurality of harmonics of the received physiologic signal is extracted based on the reference frequency, wherein the harmonics correspond to a plurality of alternans frequencies. Amplitudes of at least some of the extracted harmonics are determined, and are used to determine an alternans indicator value.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: December 27, 2011
    Assignee: Data Sciences International Inc.
    Inventors: Marina V. Brockway, Vladimir V. Kovtun, Carlos A. Ricci