Patents by Inventor Elizabeth A. Fehrmann

Elizabeth A. Fehrmann 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: 11770016
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: September 26, 2023
    Assignee: Medtronic, Inc.
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie R. Morgan, David P. Olson, Jadin C. Jackson
  • Publication number: 20210338929
    Abstract: Embodiments of the present disclosure provide a system and method configured to provide feedback to a user during a refill procedure for an implantable medical device via an external refilling apparatus through the use of resilient tactile feedback element within the refill port chamber that provides tactile feedback to a user of a refill needle of a location of the needle within the refill port.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 4, 2021
    Inventors: Nicholas R. Whitehead, Peter J. Larson, Christopher H. Rogers, Amanda A. Nowacki, Marc A. Crepeau, Joel A. Anderson, Forrest C.M. Pape, Elizabeth A. Fehrmann, Brandon J. Johnson, Luis Fesser
  • Publication number: 20210226471
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Application
    Filed: April 2, 2021
    Publication date: July 22, 2021
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie R. Morgan, David P. Olson, Jadin C. Jackson
  • Patent number: 10971943
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 6, 2021
    Assignee: Medtronic, Inc.
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
  • Publication number: 20200136417
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 30, 2020
    Applicant: Medtronic, Inc.
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
  • Patent number: 10554069
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: February 4, 2020
    Assignee: Medtronic, Inc.
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
  • Publication number: 20190190296
    Abstract: Devices, systems, and techniques for monitoring the temperature of a device used to charge a rechargeable power source are disclosed. Implantable medical devices may include a rechargeable power source that can be transcutaneously charged. The temperature of an external charging device and/or an implantable medical device may be monitored to control the temperature exposure to patient tissue during a charging session used to recharge the rechargeable power source. In one example, a temperature sensor may sense a temperature of an internal portion of a device, wherein the housing of the device is not directly thermally coupled to the temperature sensor. A temperature for the housing of the device may then be estimated based on the sensed temperature provided by the non-thermally coupled temperature sensor. A processor may then control charging of the rechargeable power source based on the determined temperature for the housing.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
  • Patent number: 9622700
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state of the patient to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: April 18, 2017
    Assignee: Medtronic, Inc.
    Inventors: Rajeev M. Sahasrabudhe, Lynn A. Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven M. Goetz, Shyam L. Gokaldas, Eric J. Panken
  • Publication number: 20160095546
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state of the patient to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Application
    Filed: October 1, 2015
    Publication date: April 7, 2016
    Inventors: Rajeev M. Sahasrabudhe, Lynn A. Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven M. Goetz, Shyam L. Gokaldas, Eric J. Panken
  • Patent number: 9149210
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: October 6, 2015
    Assignee: MEDTRONIC, INC.
    Inventors: Rajeev M. Sahasrabudhe, Lynn Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven Goetz, Shyam Gokaldas, Eric J. Panken
  • Patent number: 8758274
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state of the patient to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: June 24, 2014
    Assignee: Medtronic, Inc.
    Inventors: Rajeev M. Sahasrabudhe, Lynn Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven Goetz, Shyam Gokaldas, Eric J. Panken
  • Publication number: 20110172562
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state of the patient to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Application
    Filed: April 28, 2010
    Publication date: July 14, 2011
    Applicant: MEDTRONIC, INC.
    Inventors: Rajeev M. Sahasrabudhe, Lynn Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven Goetz, Shyam Gokaldas, Eric J. Panken
  • Publication number: 20110172927
    Abstract: Techniques relate to operating a medical device by classifying a detected posture state of a patient. This classification may be performed by comparing the detected posture state of the patient to posture state definitions available within the system. Each definition may be described in terms of a parameter (e.g., vector) indicative of a direction in three-dimensional space. The posture state definitions may be calibrated by automatically estimating values for these parameters, thereby eliminating the need for the patient to assume each posture state during the calibration process to capture actual parameter values. According to another aspect, the estimated parameter values may be updated as the patient assumes various postures during a daily routine. For instance, estimated vectors initially used to calibrate the posture state definitions may be changed over time to more closely represent posture states the patient actually assumes, and to further adapt to changes in a patient's condition.
    Type: Application
    Filed: April 28, 2010
    Publication date: July 14, 2011
    Applicant: MEDTRONIC, INC.
    Inventors: Rajeev M. Sahasrabudhe, Lynn Davenport, Jon P. Davis, Wende L. Dewing, Elizabeth A. Fehrmann, Steven Goetz, Shyam Gokaldas, Eric J. Panken