IOT BASED HEALTH CARE MANAGEMENT GOGGLES TO CHECK GLAUCOMA

Abstract

ABSTRACT The present invention discloses a system (100) for early, instant and objective assessment of visual field loss. T-GOGGLE is brain computer interface easy-to-wear dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head-mounted display. The device contains a wireless neuromonitoring system-on-module, equipped with a dual-core embedded processor, assorted I/O interfaces and a dual-band 602.11a/b/g/n Wi-Fi + Bluetooth 4 radio. The device also detects 3D linear acceleration and 3D angular velocity simultaneously at 200sps. The TGoggle is capable of capturing electrophysiological signals from six EEG and four EOG channels. It uses customized flexible polymer-based dry EEG electrodes and foam based dry EOG electrodes for no-preparation wearing. Integrated low- noise pre-amplifiers and 24-bit sigma-delta analog-digital converters can perform synchronous data sampling up to 1000 samples per second (sps). Each channel is equipped with lead-off detection capability to check whether the electrode makes good contact with the scalp. The mfSSVEP Visual Stimuli Rendering Mobile App is based on OpenGL ES 2.0 to render multi- frequency multifocal visual stimuli on an Android phone with a 60fps display. The mobile app uses signal processing and data analysis tool to give objective assessment of visual loss.

Specification

Description:IOT BASED HEALTH CARE MANAGEMENT GOGGLES TO CHECK GLAUCOMA

5 FIELD OF INVENTION

The present invention relates to the field of visual field loss. Current assessment of visual field loss in diseases such as glaucoma suffers from subjectivity of patient responses and lack of portability of standard perimeters.


BACKGROUND OF THE INVENTION


Glaucoma is a group of optic neuropathies that have in common a progressive degeneration of retinal ganglion cells (RGCs) and their axons, resulting in a characteristic appearance of the optic disc and visual field loss. Assessment of functional loss in glaucoma has been traditionally made using standard automated perimetry (SAP). However, SAP requires considerable subjective input from the patient and is limited by large test-retest variability.1 As SAP testing is generally performed in clinic-based settings, limited resources frequently result in patients not undergoing the necessary number of tests over time, which may result in late diagnosis or delayed detection of progression.


Objective assessment of visual field damage has been attempted with the use of visual evoked potential (VEP) techniques, especially multifocal VEP (mfVEP). The multifocal technique allows many areas of the retina to be stimulated simultaneously and separate responses from each part of the visual field to be obtained. Results published using mfVEP have demonstrated a good correspondence between visual field sensitivity and local mfVEP responses.2 However, current mfVEP recording techniques can only be performed with nonportable devices in clinic- or laboratory- based settings, requiring cumbersome setup for placement of electrodes, skin preparation and gel application, which are time consuming and may be uncomfortable for the patient.

The present invention is the development of a portable T goggle which is a brain computer interface
Capable of objective assessment of visual field deficits using multifocal steady-state visual-evoked potentials (mfSSVEP). The portable platform integrates a wearable, wireless, dry Electroencephalogram (EEG) system and a head-mounted display allowing monitoring of electrical brain activity associated with visual field stimulation. Further data analysis can be done to differentiate between normal eye and affected eye using AI and ML after having adequate data bank.

SUMMARY OF THE INVENTION

The inventor of the present invention have developed a TGoggle (Figure 1) consists of a portable, objective BCI integrating wireless, easy-to-wear dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head- mounted display. The device contains a wireless neuromonitoring system-on-module, equipped with a dual-core embedded processor, assorted I/O interfaces and a dual-band 602.11a/b/g/n Wi-Fi + Bluetooth 4 radio. The device also detects 3D linear acceleration and 3D angular velocity simultaneously at 200sps.
According to first aspect of the invention, a system for detecting visual field loss is a potable device capable of assessing and analyzing SSVEP signals stimulated by visual field loss. Further artificial intelligence and machine learning maps the signals received with the stored data bank and gives instantaneous results and helps in early detection of glaucoma.
20

In accordance with an embodiment of the invention consists of a portable, objective BCI integrating wireless, easy-to-wear dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head-mounted display. consists of a portable, objective BCI integrating wireless, easy-to-wear dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head-mounted display.


5 In accordance with an embodiment of the invention, The device contains a wireless neuromonitoring system-on-module, equipped with a dual-core embedded processor, assorted I/O interfaces and a dual-band 602.11a/b/g/n Wi-Fi + Bluetooth 4 radio. The device also detects 3D linear acceleration and 3D angular velocity simultaneously at 200sps.

In accordance with an embodiment of the invention, The TGoggle is capable of capturing electrophysiological signals from six EEG and four EOG channels. It uses customized flexible polymer-based dry EEG electrodes and foam based dry EOG electrodes for no-preparation wearing. Integrated low-noise pre-amplifiers and 24-bit sigma-delta analog-digital converters can perform synchronous data sampling up to 1000 samples per second (sps).
In accordance with an embodiment of the invention . Each channel is equipped with lead-off detection capability to check whether the electrode makes good contact with the scalp. The mfSSVEP Visual Stimuli Rendering Mobile App is based on OpenGL ES 2.0 to render multi-frequency multifocal visual stimuli on an Android phone with a 60fps display.
In accordance with an embodiment of the invention, The Signal Processing and Data Analysis Tool is equipped with a proprietary software that has been used in our high-speed BCI speller,27-29 which holds successive world records, and adapted to estimate the relative amplitudes, SNRs, phases, and correlations of mfSSVEP with multi-focal visual stimuli.


2


OBJECT OF THE INVENTION

It is an object of the present invention to develop a T-Goggle, a brain computer interface for early, instant and objective assessment of visual field loss primarily due to glaucoma.
10 Another object of the present invention is that the device is portable and handy and there is no need for laboratory set ups.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

15 So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may have been referred by embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawing illustrate only typical embodiments of this invention and are therefore not to
20 be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
These and other features, benefits, and advantages of the present invention will become apparent by reference to the following text figure, with like reference numbers referring to like structures across the views, wherein:
25 Fig. 1 is a diagram illustrating an exemplary device to detect visual distress(100), in accordance with an embodiment of the invention; and
Fig. 2 is a results from TGoggle and standard perimetry of glaucomatous and healthy eyes included in the study (200), in accordance with an embodiment of the invention


5 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

While the present invention is described herein by way of example using embodiments and illustrative drawings, those skilled in the art will recognize that the invention is not limited to the embodiments of drawing or drawings described, and are not intended to represent the scale of the various components. Further, some
10 components that may form a part of the invention may not be illustrated in certain figures, for ease of illustration, and such omissions do not limit the embodiments outlined in any way. It should be understood that the drawings and detailed description thereto are not intended to limit the invention to the particular form disclosed, button the contrary, the invention is to cover all modifications, equivalents,
15 and alternatives falling within the scope of the present invention as defined by the appended claim. As used throughout this description, the word "may" issued in a permissive sense (i.e. meaning having the potential to), rather than the mandatory sense, (i.e. meaning must).
Further, the words "a" or "an" mean "at least one" and the word "plurality" 20 means "one or more" unless otherwise mentioned. Furthermore, the terminology and phraseology used herein is solely used for descriptive purposes and should not be construed as limiting in scope. Language such as "including, "comprising," "having," "containing," or "involving," and variations thereof ,is intended to be broad and encompass the subject matter listed thereafter, equivalents, and additional subject
25 matter not recited, and is not intended to exclude other additives, components, integers or steps. Likewise, the term "comprising" is considered synonymous with theterms "including" or "containing" for applicable legal purposes. Any discussion of documents, acts, materials, devices, articles and the like is included in the specification solely for the purpose of providing a context for the present invention. It
30 is not suggested or represented that any or all of these matters form part of the prior


5 art base or were common general knowledge in the field relevant to the present invention.

In this disclosure, whenever a composition or an element or a group ofelements is preceded with the transitional phrase "comprising", it is understood that we also contemplate the same composition, element or group of elements with
10 transitional phrases "consisting of", "consisting", selected from the group of consisting of, "including", or "is" preceding the recitation of the composition, element or group of elements and vice versa.
The present invention is described hereinafter by various embodiments with reference to the accompanying drawing, wherein reference numerals used in the
15 accompanying drawing correspond to the like elements throughout the description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. In the following detailed
20 description, numeric values and ranges are provided for various aspects of the implementations described. These values and ranges are to be treated as examples only, and are not intended to limit the scope of the claims. In addition, a number of materials are identified as suitable for various facets of the implementations. These materials are to be treated as exemplary, and are not intended to limit the scope of the
25 invention.

Referring to drawings the invention will be described in detail. According to an embodiment of the present invention, Figure 1. The TGoggle, a portable brain- computer interface for assessment of visual function A. The TGoggle consists of a portable multifocal steady-state visual evoked potential-based visual function assessment platform, integrating wearable, wireless, dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head-mounted display. B. Subject photograph while undergoing testing with the TGoggle.


Various modifications to these embodiments are apparent to those skilled in the art from the description and the accompanying drawings. The principles associated with the various embodiments described herein may be applied to other embodiments. Therefore, the description is not intended to be limited to the embodiments shown along with the accompanying drawings but is to be providing broadest scope of consistent with the principles and the novel and inventive features disclosed or suggested herein. Accordingly, the invention is anticipated to hold on to all other such alternatives, modifications, and variations that fall within the scope of the present invention and appended claims.
, Claims:CLAIMS

We Claim

1 A system (100) for detecting visual field loss comprises of consists of a portable, objective BCI integrating wireless, easy-to-wear dry electroencephalogram (EEG) and electrooculogram (EOG) systems and a head-mounted display ;
2 A system (100) according to claim 1, also contains a wireless neuromonitoring system-on- module, equipped with a dual-core embedded processor, assorted I/O interfaces and a dual- band 602.11a/b/g/n Wi-Fi + Bluetooth 4 radio
3 A system (100) according to claim 1, The TGoggle is capable of capturing electrophysiological signals from six EEG and four EOG channels. It uses customized flexible polymer-based dry EEG electrodes and foam based dry EOG electrodes for no- preparation wearing.
4 A system (100) according to claim 1, is synched with the mfSSVEP Visual Stimuli Rendering Mobile App which is based on OpenGL ES 2.0 to render multi-frequency multifocal visual stimuli on an Android phone with a 6fps display
5 A system (100) according to claim 4 , the mobile app uses data bank and data analysis tools along with AI to differentiate between normal eye and impaired eye and the amount of distress.

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