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公开(公告)号：US12206276B2
公开(公告)日：2025-01-21
申请号：US18345849
申请日：2023-06-30
Applicant: Medtronic, Inc.
Inventor： Andrew T. Fried , Venkat R. Gaddam , Brett Otteson
Abstract: Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric vehicles, and medical devices, among others. Such devices can prevent localized overheating of the device.
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公开(公告)号：US20230352988A1
公开(公告)日：2023-11-02
申请号：US18330152
申请日：2023-06-06
Applicant: Medtronic, Inc.
Inventor： Andrew Thomas Fried , Douglas W. Brown , Charles M. Nowell , Robert J. Monson , Venkat R. Gaddam , Brett Otteson
CPC classification number: H02J50/80 , A61N1/3787 , H02J7/0047 , H02J7/02 , H02J50/10
Abstract: Devices, systems, and techniques are described to detect when a power transmitting and receiving system is in an inefficient position, which may cause a thermal response that less desirable than a more efficient position. The system may power transmitting device configured to wirelessly transfer electromagnetic energy to a power receiving device. Processing circuitry of the system may compute a target output power deliverable by the power transmitting device for a first duration and control the power transmitting device to output the target output power based in part on a heat limit. The processing circuitry may further calculate an energy transfer efficiency to the power receiving unit, update an adjustment factor based on the calculated energy transfer efficiency, and apply the adjustment factor to the heat limit for a subsequent duration.
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公开(公告)号：US11770017B2
公开(公告)日：2023-09-26
申请号：US17077425
申请日：2020-10-22
Applicant: Medtronic, Inc.
Inventor： Brett Otteson , Charles M. Nowell, Jr. , Michael J. Hage
CPC classification number: H02J7/04 , H02J50/12 , A61N1/3605 , A61N1/3787 , H02J7/00712
Abstract: Systems and methods for improved wireless recharging efficiency and decreased processing requirements are described. A plurality of duty cycle/input voltage pairs are stored in a recharger, corresponding to three subsets: a first subset corresponding to a constant minimum input voltage and an increasing duty cycle; a second subset corresponding to a constant duty cycle and an increasing input voltage; and a third subset corresponding to a maximum input voltage and an increasing duty cycle.
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公开(公告)号：US11888325B2
公开(公告)日：2024-01-30
申请号：US17124663
申请日：2020-12-17
Applicant: MEDTRONIC, INC.
Inventor： Robert M. Schulzetenberg , Venkat R. Gaddam , Jason H. Harper , Brett Otteson
IPC: H02J50/12 , H02J50/80 , H02J50/50 , H02J7/00 , A61B5/00 , A61N1/05 , A61N1/372 , A61N1/378 , H02J7/02 , H04B5/00
CPC classification number: H02J50/12 , A61B5/0015 , A61B5/0031 , A61N1/0551 , A61N1/3787 , A61N1/37235 , H02J7/00032 , H02J7/02 , H02J50/50 , H02J50/80 , H04B5/0037 , H04B5/0075
Abstract: An implantable medical system includes an implantable medical device and a external charger. The implantable medical device includes a rechargeable power source, electronic components coupled to the rechargeable power source to deliver a therapy to or monitor a parameter of a patient, and a recharge system operably coupled to the rechargeable power source including a secondary coil to receive power via an inductive power transfer. The external charger includes a housing forming an internal compartment, recharger electronic components disposed on a printed circuit board assembly in the internal compartment, and a recharge coil assembly disposed within the internal compartment, the recharge coil assembly including a recharge coil to provide power to the secondary coil via the inductive power transfer and a flux guide having a ferrite sheet disposed between the recharge coil and the printed circuit board assembly.
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5.发明公开公开(公告)号：US20230321448A1
公开(公告)日：2023-10-12
申请号：US18333905
申请日：2023-06-13
Applicant: Medtronic, Inc.
Inventor： Andrew Fried , Venkat Gaddam , Brett Otteson , Mehmet Arcan Erturk
CPC classification number: A61N1/37223 , H02J50/10 , H02J50/90 , H02J50/80 , A61N1/3787
Abstract: The instant application relates to inductive charging of devices subject to migration. Embodiments described herein provide charging to devices at variable depths and locations to accommodate both net displacement of an implantable device as well as angular rotation of the implantable device by selecting appropriate sets or subsets of available field generation coils.
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Patent Agency Ranking
公开(公告)号：US11728670B2
公开(公告)日：2023-08-15
申请号：US17786881
申请日：2021-05-24
Applicant: Medtronic, Inc.
Inventor： Andrew T. Fried , Venkat R. Gaddam , Brett Otteson
CPC classification number: H02J7/02 , A61N1/3787 , A61N1/37223 , H02J7/0047 , H02J50/10 , H02J50/20 , H02J50/80
Abstract: Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric vehicles, and medical devices, among others. Such devices can prevent localized over-heating of the device.
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公开(公告)号：US20230020595A1
公开(公告)日：2023-01-19
申请号：US17786881
申请日：2021-05-24
Applicant: Medtronic, Inc.
Inventor： Andrew T. Fried , Venkat R. Gaddam , Brett Otteson
Abstract: Devices and methods described herein facilitate rapid wireless recharging, while reducing risk of injury, damage, or discomfort caused by heat generated during recharging. The embodiments described herein are useful in a variety of context, including for IoT devices, personal electronics, electric vehicles, and medical devices, among others. Such devices can prevent localized over-heating of the device.
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公开(公告)号：US20220212017A1
公开(公告)日：2022-07-07
申请号：US17646835
申请日：2022-01-03
Applicant: Medtronic, Inc.
Inventor： Brett Otteson , Venkat R. Gaddam , Yohan Kim , Boysie R. Morgan
Abstract: Devices, systems, and techniques for monitoring the temperature of a device such as an implantable medical device is disclosed. An implantable medical device includes a housing with at least one support disposed within the housing, a temperature sensor thermally coupled to the interior surface of the housing, wherein the temperature sensor is disposed within the housing and configured to sense a temperature of a portion of the housing. At least one physically compliant material is disposed between the at least one support and the temperature sensor, where the physically compliant material is configured to provide a physical bias against the temperature sensor and towards the interior surface of the housing.
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9.发明申请公开(公告)号：US20210085987A1
公开(公告)日：2021-03-25
申请号：US16948643
申请日：2020-09-25
Applicant: Medtronic, Inc.
Inventor： Andrew Fried , Venkat Gaddam , Brett Otteson , Mehmet Arcan Erturk
Abstract: The instant application relates to inductive charging of devices subject to migration. Embodiments described herein provide charging to devices at variable depths and locations to accommodate both net displacement of an implantable device as well as angular rotation of the implantable device by selecting appropriate sets or subsets of available field generation coils.
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公开(公告)号：US12003120B2
公开(公告)日：2024-06-04
申请号：US18330152
申请日：2023-06-06
Applicant: Medtronic, Inc.
Inventor： Andrew Thomas Fried , Douglas W. Brown , Charles M. Nowell , Robert J. Monson , Venkat R. Gaddam , Brett Otteson
CPC classification number: H02J50/80 , A61N1/3787 , H02J7/0047 , H02J7/02 , H02J50/10
Abstract: Devices, systems, and techniques are described to detect when a power transmitting and receiving system is in an inefficient position, which may cause a thermal response that less desirable than a more efficient position. The system may power transmitting device configured to wirelessly transfer electromagnetic energy to a power receiving device. Processing circuitry of the system may compute a target output power deliverable by the power transmitting device for a first duration and control the power transmitting device to output the target output power based in part on a heat limit. The processing circuitry may further calculate an energy transfer efficiency to the power receiving unit, update an adjustment factor based on the calculated energy transfer efficiency, and apply the adjustment factor to the heat limit for a subsequent duration.
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