Hinged resonant power transfer coil
Methods and apparatus for wireless power transfer and communications are provided. In one embodiment, a resonator of a wireless power transfer system comprises a plurality of links connected to another with hinges to form a coil housing, the coil housing being adjustable at the hinges to conform to a body of a patient, and a flexible conductor wire attached to the coil housing, the flexible conductor wire being configured to transmit or receive wireless power. The resonator can be infinitely adjusted at the hinges to conform the shape of the resonator to a patient's body. In some embodiments, a locking mechanism can be configured to lock the resonator into a preferred position.
1. A resonator of a wireless power transfer system, comprising:
a plurality of links connected to another with hinges to form a coil housing, the coil housing being adjustable at the hinges to conform to a body of a patient, wherein the plurality of links are connected end to end to form a closed loop; and
a flexible conductor wire attached to the coil housing, the flexible conductor wire being configured to transmit or receive wireless power.
2. The resonator of claim 1 being further configured to bend at the hinges to substantially conform to the anatomy of a patient.
3. The resonator of claim 1 wherein the flexible conductor wire extends along the closed loop formed by the plurality of links.
4. The resonator of claim 1 wherein the resonator is configured to conform to a chest of the patient.
5. The resonator of claim 1 wherein the flexible conductor wire comprises at least one transmit coil and at least one receive coil.
6. The resonator of claim 1 wherein the flexible conductor wire comprises at least one transmit coil, at least one receive coil, and at least one exciter coil.
7. The resonator of claim 1 wherein the coil housing comprises silicon.
8. The resonator of claim 1 wherein the coil housing comprises a circular shape.
9. The resonator of claim 1 wherein the coil housing comprises a rectangular shape.
10. The resonator of claim 1 wherein the coil housing comprises an elliptical shape.
11. The resonator of claim 1 wherein the resonator is bendable into a non-planar configuration.
12. The resonator of claim 1 further comprising a locking mechanism configured to lock a preferred position of the coil housing into place.
13. The resonator of claim 1 further comprising at least one magnetic shielding element disposed on a portion of the plurality of links.
14. The resonator of claim 13 wherein the at least one magnetic shielding element comprises a ferrite material.
15. The resonator of claim 1 wherein the flexible conductor wire is disposed on an exterior of the coil housing.
16. The resonator of claim 1 wherein the flexible conductor wire is disposed in an interior of the coil housing.
17. The resonator of claim 16 , wherein the flexible conductor wire is disposed within a conduit of the coil housing.
18. A method of transmitting wireless power into a patient, comprising:
placing a transmitter coil on a body of the patient, the transmitter coil including a plurality of links connected end to end by hinges to form a closed loop;
conforming the transmitter coil to the body of the patient; and
transmitting wireless power from the transmitter coil to a receiver coil implanted in the patient.
19. The method of claim 18 wherein the conforming step comprises bending the plurality of links of the transmitter coil at the hinges of the transmitter coil to adjust a shape of the transmitter coil.
20. The method of claim 18 further comprising locking a shape of the transmitter coil after the conforming step.