Electricity energy harvesting with liquid crystal-magnetic particle composite particles

Patent metadata

Field	Value
Publication number	US-11077313-B2
Application number	US-201816028984-A
Country	US
Kind code	B2
Filing date	Jul 6, 2018
Priority date	Jul 7, 2017
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A method and apparatus generate electrical currents and/or voltage in tissue using devices composed of liquid crystals and magnetic particles. An instrument applies one or more magnetic fields to the devices to produce electrical energy.

First claim

What is claimed:

1. A system comprising:
at least one device being no more than 100 microns in any single dimension, containing at least one magnetic particle in a liquid crystal solution, and configured to be positioned in living tissue; and
an instrument, configured to be positioned internal or external to a body containing the living tissue, for applying a magnetic field to the at least one device to produce an electrical field for application to the living tissue.

2. The system of claim 1 , wherein the at least one device is untethered within the living tissue.

3. The system of claim 1 , wherein one or more sections of the at least one device are coated with a biocompatible material.

4. The system of claim 1 , wherein one or more sections of the at least one device are coated with a material to enhance transport to or through the living tissue.

5. The system of claim 1 , wherein one or more sections of the at least one device are coated with a material to enhance transport into the brain.

6. A method for changing an electrical state of at least one device present in living tissue, the method comprising:
positioning the at least one device within the living tissue, wherein the at least one device is no more than 100 microns in any single dimension and contains at least one magnetic particle in a liquid crystal solution; and
applying one or more magnetic fields to the at least one device to produce electrical energy.

7. The method of claim 6 , wherein the at least one device is untethered within the living tissue.

8. The method of claim 6 , wherein one or more sections of the at least one device are coated with a biocompatible material.

9. The method of claim 6 , wherein one or more sections of the at least one device are coated with a material to enhance transport to or through the living tissue.

10. The method of claim 6 , wherein one or more sections of the at least one device are coated with a material to enhance transport into the brain.

11. A method for altering and monitoring an electrical state of at least one device present in living tissue, the method comprising:
positioning the at least one device within the living tissue, wherein the at least one device is no more than 100 microns in any single dimension and contains at least one magnetic particle in a liquid crystal solution;
applying one or more magnetic fields to the at least one device to produce electrical energy; and
remotely sensing a status of the at least one device.

12. The method of claim 11 , wherein the status is a magnetic status of the at least one device.

13. The method of claim 11 , wherein the at least one device is untethered within the living tissue.

14. The method of claim 11 , wherein one or more sections of the at least one device are coated with a biocompatible material.

15. The method of claim 11 , wherein one or more sections of the at least one device are coated with a material to enhance transport to or through the living tissue.

16. The method of claim 11 , wherein one or more sections of the at least one device are coated with a material to enhance transport into the brain.

Assignees

• Weinberg Medical Physics Inc

Inventors

• Weinberg Irving N

Classifications

• A61B5/6846

  specially adapted to be brought in contact with an internal body part, i.e. invasive · CPC title

• A61B5/0515 Primary

  Magnetic particle imaging · CPC title

• H02N1/08

  with conductive charge carrier, i.e. capacitor machines · CPC title

• A61N1/40 Primary

  Applying electric fields by inductive or capacitive coupling (microwave apparatus A61N5/00); {Applying radio-frequency signals} · CPC title