Patents by Inventor Kunal Paralikar
Kunal Paralikar 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).
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Patent number: 11770016Abstract: 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: GrantFiled: April 2, 2021Date of Patent: September 26, 2023Assignee: Medtronic, Inc.Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie R. Morgan, David P. Olson, Jadin C. Jackson
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Patent number: 11752355Abstract: Techniques for estimating the temperature of an external portion of a medical device are described. In an example, processing circuitry may determine a temperature sensed by at least one temperature sensor of an internal portion of the device, and determine, based on an algorithm that incorporates the temperature of the internal portion of the device, an estimated temperature of a second portion of the device, wherein the algorithm is representative of an estimated temperature difference between the first portion of the device and the second portion of the device based at least in part on a dynamic transfer function that operates in a time-domain.Type: GrantFiled: October 30, 2020Date of Patent: September 12, 2023Assignee: Medtronic, Inc.Inventors: Andrew T. Fried, Venkat R. Gaddam, Kunal Paralikar, Brett Otteson, Yohan Kim
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Publication number: 20220134116Abstract: Techniques for estimating the temperature of an external portion of a medical device are described. In an example, processing circuitry may determine a temperature sensed by at least one temperature sensor of an internal portion of the device, and determine, based on an algorithm that incorporates the temperature of the internal portion of the device, an estimated temperature of a second portion of the device, wherein the algorithm is representative of an estimated temperature difference between the first portion of the device and the second portion of the device based at least in part on a dynamic transfer function that operates in a time-domain.Type: ApplicationFiled: October 30, 2020Publication date: May 5, 2022Inventors: Andrew T. Fried, Venkat R. Gaddam, Kunal Paralikar, Brett Otteson, Yohan Kim
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Publication number: 20210226471Abstract: 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: ApplicationFiled: April 2, 2021Publication date: July 22, 2021Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie R. Morgan, David P. Olson, Jadin C. Jackson
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Patent number: 10971943Abstract: 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: GrantFiled: December 20, 2019Date of Patent: April 6, 2021Assignee: Medtronic, Inc.Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
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Publication number: 20200136417Abstract: 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: ApplicationFiled: December 20, 2019Publication date: April 30, 2020Applicant: Medtronic, Inc.Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
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Patent number: 10554069Abstract: 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: GrantFiled: December 15, 2017Date of Patent: February 4, 2020Assignee: Medtronic, Inc.Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
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Publication number: 20190190296Abstract: 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: ApplicationFiled: December 15, 2017Publication date: June 20, 2019Inventors: Kunal Paralikar, Elizabeth A. Fehrmann, Venkat R. Gaddam, Boysie Morgan, David P. Olson, Jadin C. Jackson
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Patent number: 10258804Abstract: Devices, systems, and techniques are configured for cooling tissue during recharge of an implantable medical device (IMD) battery. In one example, a method includes charging, by an inductive charger, a rechargeable battery of an implantable medical device (IMD) within a patient, wherein the IMD comprises a housing that houses the rechargeable battery, and wherein a primary coil of the inductive charger is positioned above a region of skin of the patient proximate to the IMD. The example method further includes cooling, by a heat exchanger, the region of skin below a normal ambient surface temperature of the region of skin, wherein the heat exchanger is interposed between the primary coil and the region of skin.Type: GrantFiled: November 4, 2016Date of Patent: April 16, 2019Assignee: Medtronic, Inc.Inventors: Erik R. Scott, Kunal Paralikar
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Publication number: 20180126177Abstract: Devices, systems, and techniques are configured for cooling tissue during recharge of an implantable medical device (IMD) battery. In one example, a method includes charging, by an inductive charger, a rechargeable battery of an implantable medical device (IMD) within a patient, wherein the IMD comprises a housing that houses the rechargeable battery, and wherein a primary coil of the inductive charger is positioned above a region of skin of the patient proximate to the IMD. The example method further includes cooling, by a heat exchanger, the region of skin below a normal ambient surface temperature of the region of skin, wherein the heat exchanger is interposed between the primary coil and the region of skin.Type: ApplicationFiled: November 4, 2016Publication date: May 10, 2018Inventors: Erik R. Scott, Kunal Paralikar
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Publication number: 20150375006Abstract: A method for delivering optical stimulation comprises transfecting a target tissue with a light-sensitive channel protein sensitive to light in a wavelength range, delivering light in the wavelength range to the target tissue via an optical stimulation device, substantially simultaneously with delivering light to the target tissue, sensing bioelectric signals, determining a patient therapeutic state based on the bioelectric signals, and adjusting the delivery of the light to the target tissue based on the sensed patient therapeutic state.Type: ApplicationFiled: June 5, 2015Publication date: December 31, 2015Inventors: Timothy J. Denison, Kunal Paralikar, Gordon Orvis Munns, Wesley A. Santa, Peng Cong, Christian S. Nielsen, John D. Norton, John G. Keimel
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Patent number: 8936630Abstract: Methods of delivering optical stimulation to a target tissue from an optical stimulation device are provided. One method comprises sensing a temperature at the optical stimulation device or proximate to the optical stimulation device, and adjusting the delivery of light to the target tissue based on the sensed temperature. Another method comprises delivering the light to the target tissue with an optical light guide and sensing bioelectric signals with a sense electrode, wherein the optical light guide and the sense electrode each comprise a material that produces substantially no induced current in an electromagnetic field. Another method comprises delivering light from a light source of an optical stimulation device to a window of the optical stimulation device, delivering the light from the window to an optical light guide optically connected to the window, and delivering the light to a target tissue via the optical light guide.Type: GrantFiled: November 22, 2010Date of Patent: January 20, 2015Assignee: Medtronic, Inc.Inventors: Timothy J. Denison, Kunal Paralikar, Gordon O. Munns, Wesley A. Santa, Peng Cong, Christian S. Nielsen, John D. Norton
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Publication number: 20110125078Abstract: A method for delivering optical stimulation comprises transfecting a target tissue with a light-sensitive channel protein sensitive to light in a wavelength range, delivering light in the wavelength range to the target tissue via an optical stimulation device, substantially simultaneously with delivering light to the target tissue, sensing bioelectric signals, determining a patient therapeutic state based on the bioelectric signals, and adjusting the delivery of the light to the target tissue based on the sensed patient therapeutic state.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: Medtronic, Inc.Inventors: Timothy J. Denison, Kunal Paralikar, Gordon O. Munns, Wesley A. Santa, Peng Cong, Christian S. Nielsen, John D. Norton, John G. Keimel
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Publication number: 20110125077Abstract: Methods of delivering optical stimulation to a target tissue from an optical stimulation device are provided. One method comprises sensing a temperature at the optical stimulation device or proximate to the optical stimulation device, and adjusting the delivery of light to the target tissue based on the sensed temperature. Another method comprises delivering the light to the target tissue with an optical light guide and sensing bioelectric signals with a sense electrode, wherein the optical light guide and the sense electrode each comprise a material that produces substantially no induced current in an electromagnetic field. Another method comprises delivering light from a light source of an optical stimulation device to a window of the optical stimulation device, delivering the light from the window to an optical light guide optically connected to the window, and delivering the light to a target tissue via the optical light guide.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: Medtronic, Inc.Inventors: Timothy J. Denison, Kunal Paralikar, Gordon O. Munns, Wesley A. Santa, Peng Cong, Christian S. Nielsen, John D. Norton