Cell electric stimulator with separate electrodes for electrical field shaping and for stimulation

• US 20150134022A1
• Filed: 09/24/2014
• Published: 05/14/2015
• Est. Priority Date: 05/13/2011
• Status: Abandoned Application

• Current Assignee: Chong I.L. Lee, Sergio Lara Pereira Monteiro
• Original Assignee: Chong I.L. Lee, Sergio Lara Pereira Monteiro
• Inventors: Lee, Chong Il, Monteiro, Sergio Lara Pereira
• Application Number:
  US14/495,871
• Publication Number:
  US 20150134022A1
• Time in Patent Office: Days
• US Class Current: 607/9
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 1/0529 Electrodes for brain stimulation
• CPC Class Codes: A61N 1/0534 Electrodes for deep brain stimulation
• CPC Class Codes: A61N 1/0565 Electrode heads
• CPC Class Codes: A61N 1/36067 Movement disorders, e.g. tremor or Parkinson disease stimulating motor muscle A61N1/36003
• CPC Class Codes: A61N 1/36185 Selection of the electrode configuration
• CPC Class Codes: A61N 1/362 Heart stimulators heart defibrillators A61N1/39
• CPC Class Codes: A61N 1/3686 configured for selecting the electrode configuration on a lead A61N1/3688 takes precedence
• CPC Class Codes: A61N 1/37223 Circuits for electromagnetic coupling

Abstract

An electric stimulator for heart, brain, organs and general cells with a possibly random shape and position of electrodes which enhances its performance for breaking the symmetry. Two types of electrodes are introduced: type-1, or active electrodes are similar to prior art, while type-2, or passive electrodes have not been used in this context. Passive electrodes are electrically insulated, being unable to inject current in the surrounding medium, but they are capable of shaping the electric field, which has consequence on the path of the stimulating currents injected by type-1 electrodes. The invention also discloses a supercapacitor-type passive electrode of type-2, which maximizes the stored charge on the electrode—therefore increasing the electric field magnitude created by it.

Claims

1. An electrical stimulating device comprising:

an electric energy storage unit,

a controlling electronics,

a supporting structure comprising a proximal extremity, a distal extremity, an inner lumen with an outer surface;

a plurality of electrodes comprising at least one electrode belonging to a group of passive electrodes;

a plurality of required means to electrically interconnect these parts;

wherein the passive electrodes are configured to project electric fields into the body cells surrounding the supporting structure while configured not to inject electric currents into the body cells surrounding the supporting structure;

wherein the controlling electronics comprises electronic circuits to select a subset of the plurality of electrodes to be operational;

wherein an electrically insulating layer on the passive electrodes act as a insulator for DC current or for low frequencies signals, as opposed to the insulating layer to create a capacitor for capacitive coupling of high frequency AC current;

wherein the passive electrodes are configured to create an electric vector field in the body cells surrounding the supporting structure, the electric vector field characterized by a magnitude and a direction, wherein the direction determines a plurality of field lines, which redirects any existing electric current;

wherein the electric field lines projected by the passive electrodes direct the path of moving electric charges in the body cells where the electric field lines are located.

2. The stimulating device of claim 1 where the at least some of the plurality of electrodes belonging to a group of passive electrodes is made as a supercapacitor.

3. The stimulating device of claim 1 where the plurality of required means to electrically interconnect these parts are made with printed circuit technology.

4. The device of claim 1 with an extra radio receiver or a similar action-at-a-distance communication device capable of receiving instructions from an external unit and passing the instructions to the controlling electronics,

5. The device of claim 1 designed for use in a heart.

6. The device of claim 1 designed for use in a brain.

7. A multi electrode electric stimulating method comprising:

providing a set of type-1 active electrodes at a first location;

providing a set of type-2 passive electrodes a first location;

providing an electric energy storage device and a controlling electronics at a second location;

providing dedicated wires connecting each of the type-1 and type-2 electrodes to the controlling electronics and the energy storage device;

wherein the type-1 electrodes are capable of injecting electric currents in the cells surrounding itself;

wherein the type-2 electrodes are supercapacitors covered by an insulating layer that prevents current from flowing out of their surfaces into the surrounding cells;

wherein the connecting wires can be connected to a multiplicity of voltage and/or current levels.

8. A computer program for controlling a system for adjusting an electric field in a region of space, comprising program code means for selecting unique electric potential values for each of a plurality of supercapacitors;

wherein the unique electric potential values cause a unique charge values on each supercapacitor;

wherein each of the charges causes a unique contribution for the total value of the electric field in the three dimensional region of space.