Malleable TETs coil with improved anatomical fit

• US 10,373,756 B2
• Filed: 03/17/2014
• Issued: 08/06/2019
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories Incorporated)
• Original Assignee: TC1 LLC (Abbott Laboratories Incorporated)
• Inventors: Hoarau, Carine, Reichenbach, Steven, Hannula, Don
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Bukhari, Aqeel H
• Application Number:
  US14/217,085
• Publication Number:
  US 20140265620A1
• Time in Patent Office: 1,968 Days
• CPC Class Codes: H01F 27/02 Casings
• CPC Class Codes: H01F 27/255 made from particles H01F27/26 takes precedence
• CPC Class Codes: H01F 27/26 Fastening parts of the core together; Fastening or mounting the core on casing or support on coil H01F27/30
• CPC Class Codes: H01F 27/28 Coils; Windings; Conductive connections
• CPC Class Codes: H01F 27/306 Fastening or mounting coils or windings on core, casing or other support
• CPC Class Codes: H01F 3/10 Composite arrangements of magnetic circuits
• CPC Class Codes: H01F 3/14 Constrictions; Gaps, e.g. air-gaps in magnetic shunt paths H01F3/12
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Systems and methods for wireless energy transfer are described. A transmitter unit has a transmitter resonator with a coil that is coupled to a power supply to wirelessly transmit power to a receiver unit. A receiver unit has a receiver resonator with a coil coupled to a device load. At least one of the resonators is a malleable, non-planar resonator that can be bent and shaped to conform to a patient'"'"'s anatomy.

Claims

1. A resonator of a wireless power transfer system, comprising:

a flexible housing comprising a top section and a bottom section, the bottom section comprising a first sidewall, a second sidewall, and a bottom wall that collectively define a groove, the top section extending between the first and second sidewalls;

a malleable conductor layer disposed in the groove of the bottom section of the housing, the malleable conductor layer contacting the bottom wall and spaced apart from the first and second sidewalls; and

a flexible ferrite layer disposed in the groove of the bottom section of the housing and extending between the first and second sidewalls, the flexible ferrite layer disposed between the top section of the flexible housing and the malleable conductor layer, the malleable conductor layer disposed between the bottom section of the flexible housing and the flexible ferrite layer;

wherein the resonator is malleable, and wherein the flexible housing encloses the malleable conductor layer and the flexible ferrite layer.

2. The resonator of claim 1, wherein a thin film is positioned between the malleable conductor layer and the ferrite layer.

3. The resonator of claim 2, wherein the thin film is a PTFE film.

4. The resonator of claim 1, wherein the flexible ferrite layer comprises a plurality of ferrite beads disposed on a flexible substrate.

5. The resonator of claim 1, wherein the flexible ferrite layer comprises a plurality of ferrite tiles disposed on a flexible substrate.

6. The resonator of claim 1, wherein the flexible ferrite layer comprises a plurality of ferrite tiles having different shapes and sizes.

7. The resonator of claim 1, wherein the flexible ferrite layer comprises at least two sections, a first section having a first minimum bend radius, and a second section having a second minimum bend radius smaller than the first minimum bend radius.

8. The resonator of claim 1, wherein the malleable conductor layer comprises a resonator coil, and wherein the flexible housing, malleable conductor layer, and flexible ferrite layer each have an annular ring shape to cooperatively define a central aperture extending through the resonator.

9. The resonator of claim 8, wherein the resonator coil is coupled to a power supply and configured to transmit wireless energy.

10. The resonator of claim 1, wherein the malleable conductor layer comprises at least one transmit coil and at least one receive coil.

11. The resonator of claim 1, wherein the malleable conductor layer comprises at least one transmit coil, at least one receive coil, and at least one exciter coil.

12. The resonator of claim 1, wherein the housing comprises silicone.

13. The resonator of claim 1, further comprising a strain relief coupled to the malleable conductor layer, and a cable jacket coupled to the strain relief.

14. The resonator of claim 1, wherein the housing comprises a circular shape.

15. The resonator of claim 1, wherein the housing comprises a rectangular shape.

16. The resonator of claim 1, wherein the housing comprises an elliptical shape.

17. The resonator of claim 1, wherein the resonator is bendable into a non-planar configuration.