Chong Wook Lee

US Patent:

8335551, Dec 18, 2012

Filed:

Sep 24, 2009

Appl. No.:

12/586562

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61B 5/0478

US Classification:

600377, 600378, 600393, 600544

Abstract:

A picafina device that is an electrode for measurement of neuron electrical activity where the number of measurement points is very large, and methods of selecting a subset of available measuring electrodes on the surface of the device. The device can keep the selection for a predetermined length of time, or for an indefinite length of time, both under control of the researcher or the neurosurgeon. Selecting a different measuring pad, or a combination of pads, is equivalent to making measurement at a different location or on a nearby neuron. Several parallel measurements can be made, in which case correlations can be made between the firing of different neurons.

US Patent:

8509872, Aug 13, 2013

Filed:

Nov 14, 2012

Appl. No.:

13/676944

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61B 5/0478
A61B 5/0408

US Classification:

600377, 600378, 600374, 600393

Abstract:

A picafina device that is an electrode for measurement of neuron electrical activity where the number of measurement points is very large, and methods of selecting a subset of available measuring electrodes on the surface of the device. The device can keep the selection for a predetermined length of time, or for an indefinite length of time, both under control of the researcher or the neurosurgeon. Selecting a different measuring pad, or a combination of pads, is equivalent to making measurement at a different location or on a nearby neuron. Several parallel measurements can be made, in which case correlations can be made between the firing of different neurons.

US Patent:

8538516, Sep 17, 2013

Filed:

Mar 21, 2011

Appl. No.:

13/053137

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/08

US Classification:

607 2, 607 60

Abstract:

A device for conveying information related to address, control, stimulation and measurement to and from a large number of electrodes selected from a larger set of available electrodes.

US Patent:

8565868, Oct 22, 2013

Filed:

Sep 28, 2009

Appl. No.:

12/586763

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/08

US Classification:

607 2, 607116

Abstract:

A picafina, or lead, includes a decoder within the picafina to provide directional stimulation to a multitude of electrode pads. The system of address wires, control switches and demultiplexers selects one of a plurality of the electrode pads. Time delay switches control the fixed length of the time the cells receive the electrical stimulation. Alternatively the fixed length of the time the cells receive the electrical stimulation may be implemented by periodically disconnecting the stimulation voltage as the battery output.

US Patent:

8565869, Oct 22, 2013

Filed:

Mar 14, 2011

Appl. No.:

13/046801

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/08

US Classification:

607 2

Abstract:

A device to improve the safety of neuronal, heart, muscle and organ electrical stimulation devices during MRI scanning. The device consists of means to open and/or closing the circuit to the electrical stimulation device and to the battery pack, while, concomitantly, closing and/or opening another circuit to a dedicated path that dissipates the stored energy induced by the radiofrequency used in imaging MRI.

US Patent:

20120029590, Feb 2, 2012

Filed:

May 26, 2011

Appl. No.:

13/117132

Inventors:

Khosrow Daneshvar - Los Angeles CA, US
Samuel Arman Daneshvar - Los Angeles CA, US
Chong II Lee - Los Angeles CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/375
A61N 1/362

US Classification:

607 36, 607 45

Abstract:

A device for electrical stimulation of the brain, heart, and other neurons and muscles, capable of modifying the electrical activity of its environment in ways that are desirable for a better life style of a patient with brain, heart, or other problems. When used for brain stimulation, the device is able to superimpose an electrical current on the natural current that happens to occur, when the natural currents cause some undesirable effect, as in Parkinson's disease. When used for heart stimulation, the device is able to superimpose an electrical current on the natural current that happens to occur, originating at the sino-atrial node, which causes a healthy heart to pump blood to the lungs and to the body. The device offers an improvement over prior art of being capable of adjusting the position of the stimulating electrodes.

US Patent:

20120289823, Nov 15, 2012

Filed:

May 12, 2012

Appl. No.:

13/470275

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/36
A61B 6/00
A61N 1/362

US Classification:

600424, 607 32, 607 45

Abstract:

An electric stimulator for heart, brain, organs and general cells with a 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.

US Patent:

20140012347, Jan 9, 2014

Filed:

Sep 10, 2013

Appl. No.:

14/023283

Inventors:

Chong Il Lee - Stanton CA, US
Sergio Lara Pereira Monteiro - Los Angeles CA, US

International Classification:

A61N 1/37
A61N 1/36
A61N 1/375

US Classification:

607 36, 607 63, 607 45

Abstract:

A device to improve the safety of neuronal, heart, muscle and organ electrical stimulation devices during MRI scanning. The device consists of means to disconnect the electrical stimulation device, the battery pack and controlling electronics from the connecting wires, while, concomitantly, introducing an extra network to dissipate the induced radio frequency energy with the objective of preventing the build-up of electric potential (usually called voltage in US) at the switch gap, with consequently destruction of the switch.