Method of making and using an apparatus for a locomotive micro-implant using active electromagnetic propulsion

Patent metadata

Field	Value
Publication number	US-9433750-B2
Application number	US-201213591188-A
Country	US
Kind code	B2
Filing date	Aug 21, 2012
Priority date	Jun 16, 2009
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

Described is a locomotive implant for usage within a predetermined magnetic field. In one embodiment magnetohydrodynamics is used to generate thrust with a plurality of electrodes. In another embodiment, asymmetric drag forces are used to generate thrust.

First claim

What is claimed is:

1. A locomotive implant for usage within a predetermined magnetic field generated external to the locomotive implant and a fluid comprising:
a body;
a source of power disposed on or within the body;
at least three fluid electrodes disposed on the body, the at least three fluid electrodes providing for at least three current paths within the fluid between different ones of the at least three fluid electrodes, wherein the at least three current paths and the predetermined magnetic field generate at least three distinct forces, wherein at least one of the generated forces is a steering force that steers the locomotive implant and at least another one of the generated forces is a propulsion force that provides propulsion of the locomotive implant; and
a controller disposed on or within the body and adapted to receive directional control signals and to control the at least three current paths within the fluid using the directional control signals to control the steering and propulsion of the locomotive implant.

2. The locomotive implant according to claim 1 , wherein the locomotive implant is directly propelled without using any moving parts to obtain propulsion.

3. The locomotive implant according to claim 2 further comprising loops of wire wherein the loops of wire are configured to tilt the locomotive implant.

4. The locomotive implant according to claim 3 wherein the body is an insertable device, and wherein the source of power, and the controller are disposed within or on the insertable device.

5. The locomotive implant according to claim 4 wherein a direction of motion of the locomotive implant is changed by fluid drag forces.

6. The locomotive implant according to claim 4 wherein the insertable device is a catheter.

7. The locomotive implant according to claim 2 wherein a direction of motion of the locomotive implant is changed by fluid drag forces.

8. The locomotive implant according to claim 2 wherein buoyancy is adjusted for motion of the locomotive implant.

9. The locomotive implant according to claim 2 wherein the body is a capsule body, and wherein the source of power, and the controller are disposed within the capsule body.

10. The locomotive implant according to claim 9 wherein the locomotive implant is mm sized.

11. The locomotive implant according to claim 1 wherein the source of power is one of a wireless power receiver and a wire connected to a power source.

12. The locomotive implant according to claim 1 wherein the at least three electrodes provide for a plurality of redundant electrode combinations.

13. The locomotive implant according to claim 1 further including an electronic sensor attached to the body.

14. The locomotive implant according to claim 1 further including an actuator that dispense medicine based upon a dispenser signal from the controller.

15. The locomotive implant according to claim 1 wherein the at least three fluid electrodes disposed on the body include an electrode pattern of four electrodes disposed in a rectangular configuration and a fifth electrode disposed at a crossing of two lines of the rectangular configuration on one surface of the body.

16. The locomotive implant according to claim 15 wherein the electrode pattern is disposed on a plurality of different surfaces of the body.

17. The locomotive implant according to claim 1 further comprising a device attached to the body, the device being sensitive to position, orientation, and alignment, wherein motion of the locomotive implant aligns the device.

18. The locomotive implant according to claim 17 wherein the device is an antenna.

19. A system comprising multiple locomotive implants according to claim 1 wherein the multiple locomotive implants are combined to create multiple distinct forces.

Assignees

• Pivonka Daniel Michael
• Yakovlev Anatoly Anatolievich
• Poon Ada Shuk Yan
• Meng Teresa H
• Univ Leland Stanford Junior

Inventors

• Pivonka Daniel Michael
• Yakovlev Anatoly Anatolievich
• Poon Ada Shuk Yan
• Meng Teresa H

Classifications

• A61M25/0127 Primary

  Magnetic means; Magnetic markers · CPC title

• A61M25/0116 Primary

  self-propelled, e.g. autonomous robots (A61M25/0122 takes precedence) · CPC title

• H02J50/23

  characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas · CPC title

• A61B1/00158

  using magnetic field · CPC title

• H02J7/345

  using capacitors as storage or buffering devices · CPC title