Patents by Inventor Mehdi M. Jafari

Mehdi M. Jafari 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: 20200129714
    Abstract: This disclosure describes systems and methods for providing novel adaptive base flow scheduling during ventilation of a patient to optimize the accuracy of estimated exhaled tidal volume. Further, this disclosure describes systems and methods for providing novel adaptive inspiratory trigger threshold scheduling during the novel adaptive base flow scheduling.
    Type: Application
    Filed: December 24, 2019
    Publication date: April 30, 2020
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Patent number: 10543327
    Abstract: This disclosure describes systems and methods for providing novel adaptive base flow scheduling during ventilation of a patient to optimize the accuracy of estimated exhaled tidal volume. Further, this disclosure describes systems and methods for providing novel adaptive inspiratory trigger threshold scheduling during the novel adaptive base flow scheduling.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: January 28, 2020
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Publication number: 20190143060
    Abstract: This disclosure describes systems and methods for compensating for leaks in a ventilation system based on data obtained during periods within a breath in which the patient is neither inhaling nor exhaling. The methods and systems described herein more accurately and quickly identify changes in leakage. This information is then to estimate leakage later in the same breath or in subsequent breaths to calculate a more accurate estimate of instantaneous leakage based on current conditions. The estimated leakage is then used to compensate for the leak flow rates, reduce the patient's work of breathing and increase the patient's comfort (patient-ventilator breath phase transition synchrony).
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Applicant: Covidien LP
    Inventors: Mehdi M. JAFARI, Rhomere S. JIMENEZ, Jeffrey K. AVIANO, Gail F. UPHAM
  • Publication number: 20190134328
    Abstract: The systems and methods include providing, displaying, and/or utilizing leak estimation during ventilation of a patient with a ventilator. The systems and methods include providing, displaying, and/or utilizing internal leak estimation, total leak estimation, and/or external leak estimation during ventilation of a patient with a ventilator.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Periagounder R. Arul, Jeffrey K. Aviano
  • Patent number: 10207068
    Abstract: The systems and methods include providing, displaying, and/or utilizing leak estimation during ventilation of a patient with a ventilator. The systems and methods include providing, displaying, and/or utilizing internal leak estimation, total leak estimation, and/or external leak estimation during ventilation of a patient with a ventilator.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 19, 2019
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Periagounder R. Arul, Jeffrey K. Aviano
  • Patent number: 10207069
    Abstract: Systems and methods for compensating for leaks in a ventilation system based on data obtained during periods within a breath in which the patient is neither inhaling nor exhaling. The methods and systems described herein more accurately and quickly identify changes in leakage. This information is then to estimate leakage later in the same breath or in subsequent breaths to calculate a more accurate estimate of instantaneous leakage based on current conditions. The estimated leakage is then used to compensate for the leak flow rates, reduce the patient's work of breathing and increase the patient's comfort (patient-ventilator breath phase transition synchrony).
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: February 19, 2019
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Jeffrey K. Aviano, Gail F. Upham
  • Publication number: 20180256838
    Abstract: This disclosure describes systems and methods for providing an optimized proportional assist breath type during ventilation of a patient. The disclosure describes a novel breath type that delivers a target airway pressure calculated based on a desired patient effort range to a triggering patient.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Inventors: Peter Doyle, Mehdi M. Jafari
  • Patent number: 10029057
    Abstract: This disclosure describes systems and methods for providing novel back-up ventilation that allows the patient to trigger or initiate the delivery of breath. Further, this disclosure describes systems and methods for triggering ventilation when base flow is unknown or undeterminable by the ventilator.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 24, 2018
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Jeffrey K. Aviano
  • Patent number: 9993604
    Abstract: This disclosure describes systems and methods for providing an optimized proportional assist breath type during ventilation of a patient. The disclosure describes a novel breath type that delivers a target airway pressure calculated based on a desired patient effort range to a triggering patient.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: June 12, 2018
    Assignee: Covidien LP
    Inventors: Peter Doyle, Mehdi M. Jafari
  • Publication number: 20170246409
    Abstract: The systems and methods include providing, displaying, and/or utilizing leak estimation during ventilation of a patient with a ventilator. The systems and methods include providing, displaying, and/or utilizing internal leak estimation, total leak estimation, and/or external leak estimation during ventilation of a patient with a ventilator.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Periagounder R. Arul, Jeffery K. Aviano
  • Patent number: 9675771
    Abstract: The systems and methods include providing, displaying, and/or utilizing leak estimation during ventilation of a patient with a ventilator. The systems and methods include providing, displaying, and/or utilizing internal leak estimation, total leak estimation, and/or external leak estimation during ventilation of a patient with a ventilator.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 13, 2017
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Periagounder R. Arul, Jeffery K. Aviano
  • Publication number: 20170095627
    Abstract: This disclosure describes systems and methods for providing adaptive base flow scheduling during ventilation of a patient to optimize patient-machine synchrony and accuracy of estimated exhaled as well as inhaled tidal volumes. Further, this disclosure describes systems and methods for providing adaptive inspiratory trigger threshold scheduling during the adaptive base flow scheduling. Further still, this disclosure describes systems and methods for determining an estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the estimated leak flow. Moreover, this disclosure describes systems and methods for determining a change in the estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the change in the estimated leak flow.
    Type: Application
    Filed: November 22, 2016
    Publication date: April 6, 2017
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Patent number: 9498589
    Abstract: This disclosure describes systems and methods for providing adaptive base flow scheduling during ventilation of a patient to optimize patient-machine synchrony and accuracy of estimated exhaled as well as inhaled tidal volumes. Further, this disclosure describes systems and methods for providing adaptive inspiratory trigger threshold scheduling during the adaptive base flow scheduling. Further still, this disclosure describes systems and methods for determining an estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the estimated leak flow. Moreover, this disclosure describes systems and methods for determining a change in the estimated leak flow and adjusting the adaptive base flow scheduling and the adaptive inspiratory trigger threshold scheduling based on the change in the estimated leak flow.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: November 22, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Publication number: 20160250427
    Abstract: This disclosure describes systems and methods for providing novel adaptive base flow scheduling during ventilation of a patient to optimize the accuracy of estimated exhaled tidal volume. Further, this disclosure describes systems and methods for providing novel adaptive inspiratory trigger threshold scheduling during the novel adaptive base flow scheduling.
    Type: Application
    Filed: May 12, 2016
    Publication date: September 1, 2016
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Patent number: 9421338
    Abstract: A ventilator including a pneumatic system for providing and receiving breathing gas, and a controller operatively coupled with the pneumatic system. The controller is operable to control circulation by the pneumatic system of breathing gas to and from a patient, and to adjust at least one of a volume and pressure of breathing gas delivered to the patient, such adjustment being based upon elastic properties of a component used to fluidly couple the pneumatic system to a patient.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 23, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Edward R. McCoy, Jeffrey K. Aviano
  • Patent number: 9364624
    Abstract: This disclosure describes systems and methods for providing novel adaptive base flow scheduling during ventilation of a patient to optimize the accuracy of estimated exhaled tidal volume. Further, this disclosure describes systems and methods for providing novel adaptive inspiratory trigger threshold scheduling during the novel adaptive base flow scheduling.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: June 14, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Milenko Masic, Rhomere S. Jimenez, Jeffrey K. Aviano, Edward R. McCoy
  • Patent number: 9327089
    Abstract: A method for ventilating a patient with a ventilator includes consecutively delivering a plurality of substantially equal volume amounts into a closed ventilator circuit during a ventilator self-test, receiving a pressure measurement for each volume delivery, calculating a change in pressure for each volume delivery, consecutively releasing a plurality of substantially equal volume amounts from the closed ventilator circuit during the ventilator self-test, calculating a change in pressure for each volume release, fitting the calculated change in pressure data for volume delivery and volume release to an inhalation non-linear model equation and an exhalation non-linear model equation, respectively, deriving one or more inhalation tubing compliance compensation coefficients from the inhalation non-linear model equation, and deriving one or more exhalation tubing compliance compensation coefficients from the exhalation non-linear model equation.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 3, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Jeffrey K. Aviano
  • Patent number: 9302061
    Abstract: This disclosure describes systems and methods for detecting and quantifying transmission delays associated with distributed sensing and monitoring functions within a ventilatory system. Specifically, the present methods and systems described herein define an event-based delay detection algorithm for determining transmission delays between distributed signal measurement and processing subsystems and a central platform that receives data from these subsystems. It is important to evaluate and quantify transmission delays because dyssynchrony in data communication may result in the misalignment of visualization and monitoring systems or instability in closed-loop control systems. Generally, embodiments described herein seek to quantify transmission delays by selecting a ventilator-based defining event as a temporal baseline and calculating the delay between the inception of the defining event and the receipt of data regarding the defining event from one or more distributed sensing devices.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: April 5, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Edward R. McCoy, Rhomere S. Jimenez, Gail F. Upham
  • Publication number: 20150107584
    Abstract: The systems and methods include providing, displaying, and/or utilizing leak estimation during ventilation of a patient with a ventilator. The systems and methods include providing, displaying, and/or utilizing internal leak estimation, total leak estimation, and/or external leak estimation during ventilation of a patient with a ventilator.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Applicant: Covidien LP
    Inventors: Mehdi M. Jafari, Periagounder R. Arul, Jeffery K. Aviano
  • Patent number: 8978650
    Abstract: This disclosure describes systems and methods for compensating for leakage when during delivery of gas from a medical ventilator in a proportional assist mode to a patient. The technology described herein includes systems and methods to compensate the delivery of PA ventilation for leakage in the patient circuit by using leak-compensated lung flows as well as leak-compensated respiratory mechanics parameters (lung compliance and lung resistance) estimated in a manner that compensates for elastic and inelastic leaks from the ventilation system.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: March 17, 2015
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Gail F. Upham, Jeffrey K. Aviano