公开(公告)号：WO2022020066A1

公开(公告)日：2022-01-27

申请号：PCT/US2021/039366

申请日：2021-06-28

Applicant: MEDTRONIC, INC.

Inventor： SCHILLING, Eric A. ,  PEICHEL, David J. ,  REISFELD, Erin N.

IPC: A61N1/378 ,  A61M60/871 ,  A61M60/873 ,  A61M60/875 ,  H02J50/10 ,  H02J50/90 ,  A61B5/00

Abstract: A method of estimating a depth of an implanted receiving coil of a transcutaneous energy transfer system (TETS) includes aligning the implanted receiving coil with an external transmission coil. A coupling coefficient between the implanted receiving coil and the external transmission coil is estimated based on a first transfer function and operating conditions. The depth of the implanted receiving coil is estimated from the estimated coupling coefficient based on a second transfer function.

公开(公告)号：WO2022093436A1

公开(公告)日：2022-05-05

申请号：PCT/US2021/051203

申请日：2021-09-21

Applicant: MEDTRONIC, INC.

Inventor： REISFELD, Erin N. ,  GREEN, Joseph C. ,  WYSZYNSKI, Ryan D.

IPC: A61B5/339 ,  A61B5/353

Abstract: In general, this disclosure is directed to the adjustment of gain factors for displaying ECGs or other cardiac signals. More particularly, the disclosure is directed to techniques for adjusting the gain factor for displaying a cardiac signal that include detecting P-waves in ECGs and calculating gain factors for the display of the cardiac signal based on the identified P-waves. A method comprises identifying P-waves within a cardiac signal stored by a medical device for a cardiac episode detected by the medical device, and calculating a gain factor for display of the cardiac signal based on the identified P-waves.

公开(公告)号：WO2021230921A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/012046

申请日：2021-01-04

Applicant: MEDTRONIC, INC.

Inventor： SCHILLING, Eric A. ,  REISFELD, Erin N. ,  RADTKE, Thomas W. ,  KUHNLEY, Brian D. ,  SIEGFRIED, David I.

IPC: A61N1/378 ,  A61N1/362

Abstract: A controller implantable within the body of a patient as part of a left ventricular assist device (LVAD) system and a method therefore are provided. According to one aspect, the controller includes processing circuitry configured to receive inputs from at least one of: at least one internal component of the LVAD system, at least one external component of the LVAD system, and at least one clinicians device, and determine a charging rate for charging a battery of the LVAD system internal to the patient based on at least one of the received inputs.

公开(公告)号：WO2023028528A1

公开(公告)日：2023-03-02

申请号：PCT/US2022/075415

申请日：2022-08-24

Applicant: MEDTRONIC, INC.

Inventor： HOFFMAN, Matthew J. ,  WYSZYNSKI, Ryan D. ,  REISFELD, Erin N. ,  ZHANG, Bo ,  KOCH, Christopher D.

IPC: A61N1/372 ,  G16H40/40

Abstract: This disclosure describes systems, devices and techniques for improving the longevity of battery life in a device. An example first device includes communication circuitry configured to communicate with a second device and processing circuitry configured to determine an expected amount of data to be transmitted by the second device to the first device. The processing circuitry is configured to determine that the expected amount of data to be transmitted by the second device to the first device is greater than or equal to a predetermined data threshold and based on the expected amount of data to be transmitted being greater than or equal to the predetermined data threshold, determine that a predetermined restriction is met. The processing circuitry is configured to, based on the predetermined restriction being met, control the communication circuitry to transmit an instruction to the second device.

公开(公告)号：WO2021183240A1

公开(公告)日：2021-09-16

申请号：PCT/US2021/016992

申请日：2021-02-08

Applicant: MEDTRONIC, INC.

Inventor： SCHILLING, Eric A. ,  KUHNLEY, Brian D. ,  REISFELD, Erin N. ,  NELSON, Stephen M. ,  MASON, Nathanael O.

IPC: A61M60/148 ,  A61M60/871 ,  A61N1/378 ,  A61N1/372

Abstract: A system for minimizing misalignment notifications for a TETS having an implantable blood pump, an external controller having a power source and a processing circuitry, a transmission coil in communication with the external controller, a receiving coil configured for transcutaneous inductive communication with the transmission coil, and an implantable controller in communication with the receiving coil and the implantable blood pump. The implantable controller having a power source configured to receive power from the receiving coil. The processing circuitry may be configured to: operate in a first mode where an alert is generated when a power efficiency transfer between the transmission coil and the receiving coil is below a first predetermined threshold; and operate in a second mode where the alert is only generated when the power remaining in the power source for the implantable controller is below a first predetermined power source threshold.