Rahul Gupta

US Patent:

8473063, Jun 25, 2013

Filed:

Apr 20, 2011

Appl. No.:

13/090672

Inventors:

Rahul Gupta - Roseville MN, US
Gabriela C. Molnar - Fridley MN, US
Dwight E. Nelson - Shoreview MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/36021

US Classification:

607 46, 607 45, 607 99

Abstract:

Methods and apparatuses are disclosed for potentiating a favorable brain state that is associated with relief in symptoms of a brain condition. Techniques include monitoring one or more brain signals and detecting an episode of a favorable brain state based on the one or more brain signals, the favorable brain state associated with a decrease in one or more symptoms of a brain condition of the patient. Then, in response to the detection of the favorable brain state episode, electrical stimulation that potentiates the favorable brain state is delivered to the brain of the patient, the electrical stimulation delivered within a window of time opened for detection of each favorable brain state episode.

US Patent:

20110196446, Aug 11, 2011

Filed:

Feb 5, 2010

Appl. No.:

12/701099

Inventors:

Jianping Wu - Shoreview MN, US
Dwight E. Nelson - Shoreview MN, US
Rahul Gupta - Roseville MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/05

US Classification:

607 45

Abstract:

This disclosure describes techniques for delivering electrical stimulation to the brain of a patient at a frequency greater than a selected frequency. The techniques may reestablish gamma frequency band activity within the brain of a patient, and thus improve the patient's movements and cognitive states. In one example, the disclosure is directed to a method that includes selecting a frequency within a gamma frequency band and delivering electrical stimulation at a frequency greater than the selected frequency.

US Patent:

20120271189, Oct 25, 2012

Filed:

Apr 13, 2012

Appl. No.:

13/446459

Inventors:

Dwight E. Nelson - Shoreview MN, US
Rahul Agarwal - Baltimore MD, US
Steven L. Jensen - Andover MN, US
Rahul Gupta - Roseville MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 5/0476

US Classification:

600544

Abstract:

Various embodiments concern sensing a LFP signal from one or more electrodes, measuring the amplitude of the signals over a period of time, and calculating a plurality of variance values from the amplitude, wherein each of the variance values correspond to the variance of the amplitude for a different interval of time of the period of time with respect to the other variance values. Such embodiments may further include assessing the relative level of neural activation of an area of the brain based on the variance values, wherein the area of the brain is assessed to have a relatively higher level of neural activation when the variance is relatively higher and the area of the brain is assessed to have a relatively lower level of neural activation when the variance is relatively lower.

US Patent:

20120271374, Oct 25, 2012

Filed:

Apr 13, 2012

Appl. No.:

13/446678

Inventors:

Dwight E. Nelson - Shoreview MN, US
Rahul Gupta - Roseville MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/36

US Classification:

607 45

Abstract:

Methods and apparatuses are described for monitoring synchronization of two or more brain areas and delivering an electrical therapy to the brain to facilitate synchronization of the two or more brain areas. The electrical therapy can be titrated to improve synchronization between the two or more areas of the brain based on the one or more signals, the synchronization between the two or more areas of the brain occurring in response to the patient being exposed to external sensory stimulus, wherein the electrical therapy does not independently cause activation of either of the two or more areas of the brain.

US Patent:

20140358024, Dec 4, 2014

Filed:

Jul 31, 2013

Appl. No.:

13/955367

Inventors:

- Minneapolis MN, US
Jianping Wu - Shoreview MN, US
Rahul Gupta - St. Louis Park MN, US
Yan Zhao - Enschede, NL

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B 5/04
A61B 5/0478
A61B 5/00
A61N 1/36

US Classification:

600544, 607 45

Abstract:

In some examples, a processor determines a patient state based on activity of a bioelectrical brain signal of a patient in one or more frequency sub-bands of a frequency band of interest. For example, a processor may determine a patient state based on the power level of a bioelectrical brain signal of the patient in one or more frequency sub-bands of a frequency band, or based on a spectral pattern of a bioelectrical brain signal in a frequency band, such as a shift in a power distribution between sub-bands, a change in the peak frequency within one or more sub-bands, a pattern of the power distribution over one or more frequency sub-bands, or a width or a variability of one or more sub-bands exhibiting a relatively high or low level of activity