Method for minimizing misalignment notifications for a transcutaneous energy transfer system

Patent metadata

Field	Value
Publication number	US-11547847-B2
Application number	US-202016816392-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Mar 12, 2020
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

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.

First claim

What is claimed is:

1. A system for minimizing misalignment notifications for a transcutaneous energy transfer system (“TETS”), comprising:
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 being configured to:
operate in a first mode where a first mode 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 a second mode alert is generated when the power remaining in the power source for the implantable controller is below a first predetermined power source threshold, wherein the second mode is configured to inhibit at least the first mode alert of the first mode and the first mode is configured to inhibit the second mode alert of the second mode.

2. The system of claim 1 , wherein the first mode alert is generated in the first mode after a first predetermined period of time after the power efficiency transfer between the transmission coil and the receiving coil is below the first predetermined threshold.

3. The system of claim 2 , wherein the first mode alert is generated in the first mode between 2-5 minutes after the power efficiency transfer between the transmission coil and the receiving coil drop below the first predetermined threshold.

4. The system of claim 1 , wherein the second mode alert is generated in the second mode after a second predetermined period of time after the first predetermined power source threshold is reached.

5. The system of claim 4 , wherein the second mode alert is generated in the second mode less than 30 seconds after the first predetermined power source threshold is reached.

6. The system of claim 1 , wherein the external controller further includes a display.

7. The system of claim 6 , wherein the display includes at least one of the group comprising of a first notification associated with the first mode alert and a second notification associated with the second mode alert.

8. The system of claim 7 , wherein at least one of the group comprising of the first mode alert appears on the display when the first predetermined threshold is met and the second mode alert appears on the display when the first predetermined power source threshold is met.

9. A method for minimizing misalignment notifications for a transcutaneous energy transfer system (“TETS”), including 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 method comprising:
operating in a first mode where a first mode alert is generated when a power efficiency transfer between the transmission coil and the receiving coil is below a first predetermined threshold; and
operating in a second mode where a second mode alert is generated when the power remaining in the power source for the implantable controller is below a first predetermined power source threshold, wherein the second mode is configured to inhibit at least the first mode alert of the first mode and the first mode is configured to inhibit the second mode alert of the second mode.

10. The method of claim 9 , wherein the first mode alert is generated in the first mode after a first predetermined period of time after the power efficiency transfer between the transmission coil and the receiving coil is below the first predetermined threshold.

11. The method of claim 10 , wherein the first mode alert is generated in the first mode between 2-5 minutes after the power efficiency transfer between the transmission coil and the receiving coil drop below the first predetermined threshold.

12. The method of claim 9 , wherein the second mode alert is generated in the second mode after a second predetermined period of time after the first predetermined power source threshold is reached.

13. The method of claim 9 , wherein the second mode alert is generated in the second mode less than 30 seconds after the first predetermined power source threshold is reached.

14. The method of claim 9 , wherein the first mode alert is disabled in the first mode when the external controller is configured to operate in the second mode.

15. The method of claim 9 , wherein the external controller further includes a display.

16. The method of claim 15 , wherein the display includes at least one of the group comprising of a notification associated with the first mode alert and a notification associated with the second mode alert.

17. The method of claim 16 , wherein at least one of the group comprising of the first mode alert appears on the display when the first predetermined threshold is met and the second mode alert appears on the display when the first predetermined power source threshold is met.

18. The method of claim 16 , wherein the processing circuitry is configured to operate in the first mode for a predetermined period of time and the processing circuitry is configured to operate in the second mode for a different predetermined period of time.

19. A method for minimizing misalignment notifications for a transcutaneous energy transfer system (“TETS”), including 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 method comprising:
operating in a first mode where a first mode alert is generated after a first predetermined period of time when a power efficiency transfer between the transmission coil and the receiving coil is below a first predetermined threshold;
disabling the first mode alert that is generated after the first predetermined period of time when the power efficiency transfer between the transmission coil and the receiving coil is below the first predetermined threshold in a second mode; and
generating a second mode alert in the second mode after a second predetermined period of time when the power remaining in the power source for the implantable controller is below a first predetermined power source threshold, wherein the second mode is configured to inhibit at least the first mode alert of the first mode and the first mode is configured to inhibit the second mode alert of the second mode.

Assignees

• Medtronic Inc

Inventors

• Schilling Eric A
• Kuhnley Brian D
• Reisfeld Erin N
• Nelson Stephen M
• Mason Nathanael O

Classifications

• A61M60/508

  Electronic control means, e.g. for feedback regulation · CPC title

• A61M60/216

  including a rotating member acting on the blood, e.g. impeller · CPC title

• A61M60/871 Primary

  Energy supply devices; Converters therefor · CPC title

• A61M60/875

  specially adapted for optimising alignment of external and implantable coils · CPC title

• A61M2209/088

  on the body · CPC title