DESC:
FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)

1. Title of the invention – A HUMAN BODY BALANCE SENSING BIOFEEDBACK DEVICE

2. Applicant(s)

(a) NAME : RK UNIVERSITY
(b) NATIONALITY: INDIAN
(c) ADDRESS: RK University, Bhavnagar Highway, Kasturbadham Rajkot - 360020, Gujarat, India

3. PREAMBLE TO THE DESCRIPTION

The following specification particularly describes the invention and the manner in which it is to be performed.

A HUMAN BODY BALANCE SENSING BIOFEEDBACK DEVICE

FIELD OF THE INVENTION:

The present invention relates to a human body balance sensing biofeedback device. Particularly it relates to a human body balance sensing biofeedback device to sense the human body deviations like anterior, posterior, lateral sways, are occurring from the normal positions which being useful to evaluate the postural stability and to predict the fall risk in elderly population as well as in subjects with balance problems.

BACKGROUND OF THE INVENTION:

World has observed a great change from pandemic of COVID 19 where bio- markers are better supporting tools as compared to chemo markers. Biomarkers are measurable and objective parameters which can be correlated with individual’s efficiency in Activities of daily living (ADLs), however, subjective parameters and their efficiency in ADLs are questionable. Biomarkers will be next generation tools for assessing ADLs and related dysfunction. Balance is an important factor that influences the activities of daily living.

The researchers as well as medical professionals concludes that there is need for more reliable, accurate and ease to access assessments of human body balance. There are some inventions/tools for balance assessment available in the market. The conventional invention needs the expensive force platforms which are not usable into the clinical trials or for clinical research. These force platforms having less accuracy in the true evaluation of balance. Development of economic electronic devices which capable to measure the center of mass (COM) movements in order to approximate the balance has been disclosed in the prior arts. The typical use of accelerometers to measure postural sway has been limited to lower body, waist or lumbar movement analysis and have not been used to analyze trunk sway. Trunk sway presents a completely different measure of compensatory sway, because it analyzes above COM movement and therefore proprioceptive balance control of the lower extremity and the trunk without the false compensation of arm or head movement.

Balance testing has been identified as an important part of testing in fall risk prevention more particularly for elder people, in prescription drug interaction, chronic neurological disease management, traumatic brain injury, stroke and performance testing in work readiness screening. Falls are biggest risks facing in the over 60 age group, accidents are the fifth highest cause of death, and approximately two thirds of accidents are falls.

There are many types of postural sway or balance sensing devices discloses into the conventional technologies.

US20110212810A1 Provided is a balance training system for improving postural control of a user by providing visual feedback regarding the user's center of mass (CoM) to the user on a display. The balance training system includes a balance improvement module connected to the display, and a first sensor which captures information about a position of the user with respect to a platform of the balance training system on which platform the user is moving and which provides the captured information to the balance improvement module. The balance improvement module is configured to extract CoM information of the user from the captured information, to compare the extracted CoM information with a target area for the user's CoM on the platform, and to provide results of the comparison to the display for displaying the results to the user.

US20130324888A1 discloses real-time track and balance monitoring, with inexpensive components providing feedback to the individual, can also lead to mental changes for improved physical performance and mental stability. The system complements many of the laboratory based gait analysis techniques using treadmills and photographic or video analysis of body motion. By ignoring the detailed biometric models of individual muscle contributions to locomotion, it uniquely measures a subset of individual muscle action components and limb locations during interaction tasks, at a very fine detail to integrate local muscle's neural oscillator controlling functionality of Balance, with a global, brain controlling functionality of track.

US20170035343A1 discloses a system and method for performing a balance evaluation that utilizes a hand held accelerometer that measures upper body compensatory and correctional movement. Instead of testing movement in the waist or lower extremity as is commonly done, the instant invention measures thoracic trunk sway to estimate an individual's balance via positional change algorithms. By holding the measuring device to the chest and performing one or a variety of balance tests, the instant invention can determine the amount of sway in the trunk without attached or fixed monitors, which presents a novel approach to assessing postural sway above the center of mass.

Although, the application of these conventional technologies within a server connected hand-held wireless device, for the purpose of evaluating medical conditions of the subject has been absent.

The problems associated with some of these available devices to measure impaired balance are costly, laboratory based devices made in foreign countries and only skilled and experienced medical professionals can use these devices. Further, due to the heavy weight and complex structure, the physiotherapist cannot be able to use such conventional devices as routine assessment device as well as patients in various environments to evaluate balance components and get trained for the balance dysfunction to improve functional tasks.

There are other instruments like, Computerised posturography, force plates, sensor based devices which are available for measuring postural stability. Although, these type of instruments also having disadvantage like it is not wearable, portable and easy to access devices to evaluate the balance problems.

Moreover, fall risk cannot be predicted through the conventional technologies. So, it is desperately needed to develop a human body balance sensing biofeedback device to sense the human body deviations which is advanced technology based balance training and assessments device and being used for many conditions and populations, having good balance tool which is cost effective, valid, reliable, and sensitive enough to measure minor changes.

OBJECT OF THE INVENTION:

The principle object of the present invention is to overcome all the mentioned and existed drawbacks of the prior arts by providing a human body balance sensing biofeedback device.

Another object of the present invention is to provide a human body balance sensing biofeedback device which is portable and wearable, so the person can carry the device anywhere.

Another object of the present invention is to provide a human body balance sensing biofeedback device which being capable to assess the balance without using of any other additional scales.

Another object of the present invention is to provide a human body balance sensing biofeedback device which being capable to access the fall risk.

Another object of the present invention is to provide a human body balance sensing biofeedback device which being used by therapist as routine assessment device as well as patients in various environments to evaluate balance components and get trained for the balance dysfunction to improve functional tasks.

Another object of the present invention is to provide a human body balance sensing biofeedback device in which there is no need of specialised laboratories to conduct the test and it can be used anywhere.

Yet another object of the present invention is to provide a human body balance sensing device which is less time consuming and accurate to conclude the result.

Yet another object of the present invention in a present embodiment is to allow healthy people to demonstrate normal function and test following suspected proprioceptive damage. The development of a large database of easily accessed, individualized balance scores will provide each user a very accurate baseline or normal score.

SUMMARY OF THE INVENTION:

In view that the prior art devices are not perfect for use, it is tried by the inventor to develop an improved a human body balance sensing device which being capable to assess the balance and predict the fall risk.

The present invention is all about a human body balance sensing biofeedback device to sense the human body deviations like anterior, posterior, lateral sways, are occurring from the normal positions which being useful to evaluate the postural stability and to predict the fall risk in elderly population as well as in subjects with balance problems.

Another aspect of the present invention is to provide a human body balance sensing biofeedback device, comprising a wearable body positioning sensor being capable to sense the position of the user, a controller unit for deriving continuous body sway information received through said body positioning sensor, a body balance sensing position sensor adapted to be attached to the body of a subject and providing continuous body sway signals indicative of the sway balance of the body, a battery to provide the power supply and a USB charging port to charge the said battery, a switch being capable to switch on and switch off the said balance sensing biofeedback device, a LED light source to indicate the current status of the balance sensing biofeedback device, and a stabilizing belt to hold the device tightly on to the back of the user, wherein said controller unit means for deriving continuous body sway balance information from the body sway signals and for generating an output display of the body sway information, and an output display means for displaying the position of body to an user of the system.

Another aspect of the present invention is to provide human body balance sensing biofeedback device in which body positioning sensor located at the back of human body such as upper part of sensor being rested on a lumbosacral junction which is close to the center of gravity of the human body and lower part of the sensor being rested on a sacrum.

Yet another aspect of the present invention is to provide a human body balance sensing biofeedback device in which controller unit further comprises means for comparing the body balance information with a set of safety rules defining a stability of the user to obtain a measure of the user’s balance control and for incorporating the measure of the subject's balance control in the operator display.

BRIEF DESCRIPTION OF THE DRAWINGS:

The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, exemplary constructions of the invention are shown in the drawings. However, the invention is not limited to the specific methods and structures disclosed herein. The description of a method step or a structure referenced by a numeral in a drawing is applicable to the description of that method step or structure shown by that same numeral in any subsequent drawing herein.
FIG. 1 represent the schematic view of the human body balance sensing biofeedback device of the present invention.
FIG.2 represent the block diagram of the human body balance sensing biofeedback device of the present invention.

DETAILED DESCRIPTION OF THE INVENTION:

Detailed embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific functional and structural details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs.

The present invention overcomes the aforesaid drawbacks of conventional mechanism. The objects, features, and advantages of the present invention will now be described in greater detail. Also, the following description includes various specific details and is to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that: without departing from the scope and spirit of the present disclosure and its various embodiments there may be any number of changes and modifications described herein.

It must also be noted that as used herein and in the appended claims, the singular forms "a", "an," and "the" include plural references unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred, systems are now described.

The term “lumbosacral junction” used throughout the invention is an L5-S1 spinal motion segment, which is the transition region between the lumbar spine and sacral spine in the lower back.

The main embodiment of the present invention is to provide a human body balance sensing biofeedback device (100) to sense the human body deviations like anterior, posterior and lateral sways, occurring from the normal positions which being useful to evaluate the postural stability and to predict the fall risk in elderly population as well as in subjects with balance problems.

As per detail embodiments of the present invention, human body balance sensing biofeedback device (100), comprising a wearable body balance positioning sensor (101) being capable to sense the position of the user, a controller unit (102) for deriving continuous body sway information received through said body positioning sensor (101), said body balance sensing position sensor (101) adapted to be attached to the body of a subject and providing continuous body sway signals indicative of the sway balance of the body, a battery (103) to provide the power supply and a USB charging port (104) to charge the said battery (103), a switch (105) being capable to switch on and switch off the said balance sensing biofeedback device (100), a LED light source (106) to indicate the current status of the balance sensing biofeedback device (100) and a stabilizing belt (107) to hold the device (100) tightly on to the back of the user, wherein said controller unit (102) means for deriving continuous body sway balance information from the body sway signals and for generating an output display of the body sway information, and an output display (108) means for displaying the position of body to an user of the system.

As per detailed embodiment of the present invention, body positioning sensor (101) located at the back of human body such as upper part (101a) of said body positioning sensor (101) being rested on a lumbosacral junction (109) which is center of gravity of the human body and lower part (101b) of said body positioning sensor (101) being rested on a sacrum.

As per detailed embodiment of the present invention, body positioning sensor (101) being capable to sense the deviation like anterior, posterior and lateral sways which are occurring from the normal positions and being helpful to evaluate the postural stability and to predict the fall risk in elderly population as well as in subjects with balance problems.

As per the detailed embodiment of the present invention, said output display (108) can be but not limited to any wireless display being capable to display the positions of user through the data shared to a web application. The display of the smartphone or laptop or any other wireless display which having the mobile application linked with the body positioning sensor (101) being capable to show the particular action of the subject and also showing the balance information received through the body positioning sensor (101) through the wireless channel or modem.

As per detailed embodiment of the present invention, said controller unit (102) includes means for deriving body sway deviation from the body sway signals and means for generating an output of the body sway deviation.

As per detail embodiment of the present invention, said controller unit (102) further comprises means for comparing the body balance information with a set of safety rules defining a stability of the user to obtain a measure of the user’s balance control and for incorporating the measure of the subject's balance control in the operator display (108).

The present invention can be more efficiently explained with the help of drawings. Referring to figures 1 and 2 of the present invention, the view of the human body balance sensing biofeedback device (100) has shown. The human body balance sensing biofeedback device (100), comprising a wearable body balance positioning sensor (101) being capable to sense the position of the user located at the back of human body such as upper part (101a) of said body positioning sensor (101) being rested on a lumbosacral junction (109) which is center of gravity of the human body and lower part (101b) of said body positioning sensor (101) being rested on a sacrum. The controller unit (102) provided for deriving continuous body sway balance information from the body sway signals and for generating an output display of the body sway information, and an output display (108) means for displaying the position of body to a user of the system. The body balance sensing position sensor (101) adapted to be attached to the body of a subject and providing continuous body sway signals indicative of the sway balance of the body. The device (100) having a battery (103) to provide the power supply and a USB charging port (104) to charge said battery (103). The LED light source (106) being capable to indicate the current status of the body balance sensing biofeedback device (100). For tighten the body balance sensing biofeedback device (100) on the back of the human body, a stabilizing belt (107) provided.

The present invention was experimented with and illustrated more in detail in the following example. The example describes and demonstrates embodiments within the scope of the present invention. This example was given solely for illustration and is not to be construed as limitations of the present invention, as many variations thereof are possible without departing from spirit and scope.

This example was conducted to analyze the reliability and validity of human body balance sensing biofeedback device with Functional Reach Test (FRT) and Berg Balance Scale (BBS) among healthy subjects and subjects having balance problem.
During the validation process of present invention with Berg Balance Scale in healthy subjects proceeded with 50 healthy individuals. The 14 items of BBS were assessed to objectively calculate the static and dynamic balance ability. The scoring was done on five-point ordinal scale, with scores ranging from 0 to 4. These 50 healthy individuals performed the tasks as per the BBS components and movement deviation was noted using present invention. Same way we had recruited 100 healthy individuals to estimate the correlation of human body balance sensing biofeedback device versus FRT. This assessment was performed by a trained assessor.

The Berg Balance Scale and Functional Reach test were was used in another 30 individuals with balance problem and scoring was done on a scale of 0 to 4 for 14 items of BBS. These 30 individuals underwent movement deviation measurements using device of the present invention for 14 items of BBS and FRT to see the validity of human body balance sensing biofeedback device against Berg Balance Scale and FRT in individuals with balance problem.

In context to testing reliability, the 50 subjects underwent BBS and human body balance sensing biofeedback device measurements and the 100 individuals underwent FRT measurement followed by human body balance sensing biofeedback device measurement where, deviation on human body balance sensing biofeedback device was noted by two independent trained raters at the same time. The first rater took second measurement on the next day.

As the sample size was less than 30, Shapiro-Wilk test was applied to check the normality of data. It was found that Total of balance sensing device was not normally distributed but age and FRT were found to be normally distributed. So, inventors of the present invention has applied Spearman’s rank correlation coefficient (Spearman’s rho (?)) to estimate correlation of human body balance sensing biofeedback device with BBS and FRT in individuals with balance problem.

To check whether the data follows normal distribution or not, Kolmogorov-Smirnovtest of normality ran. The results suggests that the data was not found to be normally distributed. Thus, median and Inter-Quartile Range (IQR) used to describe the data and appropriate non-parametric test as test of significance.

Table 1: Correlation of BBS Components with human body balance sensing biofeedback device Movement Deviations for healthy individuals by First Rater on Day 1:

Sr. No. BBS Components Spearman Correlation Coefficient (?) p value
1. BBS 1 Sitting to standing -0.669 <0.000
2. BBS 2 Standing unsupported -0.735 <0.000
3. BBS 3 Sitting unsupported -0.706 <0.000
4. BBS 4 Standing to sitting -0.600 <0.000
5. BBS 5 Transfers -0.571 <0.000
6. BBS 6 Standing with eyes closed -0.518 <0.000
7. BBS 7 Standing with feet together -0.833 <0.000
8. BBS 8 Reaching forward with outstretched arm 0.880 <0.000
9. BBS 9 Retrieving object from floor 0.771 <0.000
10. BBS 10 Turning to look behind 0.615 <0.000
11. BBS 11 Turning 360 degrees -0.740 <0.000
12. BBS 12 Placing alternate foot on stool -0.618 <0.000
13. BBS 13 Standing with one foot in front -0.661 <0.000
14. BBS 14 Standing on one foot -0.708 <0.000

Table 2: Correlation of BBS Components with human body balance sensing biofeedback device Movement Deviations in Individuals with Balance Problem:

Sr. No. BBS Components Spearman Correlation Coefficient (?) p value
1. BBS 1 Sitting to standing -0.635 <0.000
2. BBS 2 Standing unsupported -0.593 <0.000
3. BBS 3 Sitting unsupported -0.787 <0.000
4. BBS 4 Standing to sitting -0.820 <0.000
5. BBS 5 Transfers -0.771 <0.000
6. BBS 6 Standing with eyes closed -0.655 <0.000
7. BBS 7 Standing with feet together -0.751 <0.000
8. BBS 8 Reaching forward with outstretched arm 0.948 <0.000
9. BBS 9 Retrieving object from floor 0.825 <0.000
10. BBS 10 Turning to look behind 0.652 <0.000
11. BBS 11 Turning 360 degrees -0.684 <0.000
12. BBS 12 Placing alternate foot on stool -0.688 <0.000
13. BBS 13 Standing with one foot in front -0.848 <0.000
14. BBS 14 Standing on one foot -0.923 <0.000

It was analyzed whether human body balance sensing biofeedback device movement deviation measurements for 14 components of BBS are correlated with the 14 components of BBS assessment. It was found that there is strong negative correlation between BBS and human body balance sensing biofeedback device for all components except component 8th,9th and 10th(p<0.000). For components 8th, 9th& 10th, strong positive correlation was found which was statistically significant. Thus, overall result of human body balance sensing biofeedback device showed excellent correlation with BBS. As per the analysis, correlation of human body balance sensing biofeedback device movement deviations with 14 components of BBS in 30 individuals with balance problem. Mean age (±SD) of these 30 individuals was 59.5 years (15.44 years). Median age (Inter-Quartile Range) was 62 years (57 years, 69 years).

The correlation of human body balance sensing biofeedback device movement deviations with 14 components of BBS in 50 Healthy Individuals is shown in Table 1. The correlation of human body balance sensing biofeedback device movement deviations with 14 components of BBS in 30 individuals with balance problem is shown in Table 2.

Validity of human body balance sensing biofeedback device against Functional Reach Test:

Table 3: Correlation of human body balance sensing biofeedback device and FRT in individuals with Balance Problem:

Sr. No. Variables Median (IQR) Spearman Correlation Coefficient (?) p value
1 FRT (In cm) 36.36 (33.8, 40.34) 0.567 <0.000
Rater 1 Day 1 70 (60, 80)

Table 4: Correlation of human body balance sensing biofeedback device and FRT in Individuals with Balance Problem:

Sr. No. Variables Median (IQR) Spearman Correlation Coefficient (?) p value
1 FRT (In cm) 18.83 (14.25, 22.42) 0.838 <0.000
Total of present invention 30 (20, 30)

The correlation of human body balance sensing biofeedback device movement deviations with FRT in 100 individuals with Healthy Individuals is shown in Table 3. The correlation of human body balance sensing biofeedback device movement deviations with FRT in 100 Healthy Individuals is shown in Table 4.
The analysis of correlation between human body balance sensing biofeedback device and FRT in individuals with balance problem showed that there is strong positive correlation between human body balance sensing biofeedback device and FRT (p<0.000), which suggests excellent validity of human body balance sensing biofeedback device measurement in individuals with balance problem against FRT.

Total 30 individuals were selected to assess the validity of human body balance sensing biofeedback device against BBS & FRT. Out of these 30 individuals, 7 (23.33%) were males and 23 (76.67%) were females. Mean age (±SD) was 67.07 years (7.58 years). Median age (Inter-Quartile Range) was 66 years (62 years, 70 years).

Reliability of human body balance sensing biofeedback device against Berg Balance Scale:

The intra-rater and inter-rater reliability of human body balance sensing biofeedback device against BBS was analyzed in 50 healthy individuals and against FRT analysed in 100 healthy individuals. Mean age (±SD) of these 50 individuals was 61.04 years (12.51 years). Median age (Inter-Quartile Range) was 64 years (56 years, 70 years).

Table 5: Intra rater Correlation of human body balance sensing biofeedback device Movement Deviations (for BBS Components) by First Rater on Day 1 and Day 2: (RKB 1-14 is the component of the present invention)

Sr. No. Component Spearman Correlation Coefficient (?) p value
1. RKB 1 0.668 <0.000
2. RKB 2 0.888 <0.000
3. RKB 3 0.767 <0.000
4. RKB 4 0.706 <0.000
5. RKB 5 0.688 <0.000
6. RKB 6 0.836 <0.000
7. RKB 7 0.895 <0.000
8. RKB 8 0.907 <0.000
9. RKB 9 0.780 <0.000
10. RKB 10 0.811 <0.000
11. RKB 11 0.760 <0.000
12. RKB 12 0.783 <0.000
13. RKB 13 0.752 <0.000
14. RKB 14 0.790 <0.000

Table 6: Inter Rater Correlation of human body balance sensing biofeedback device Movement Deviations (for BBS Components) by First Rater and Second Rater:

Sr. No. Component Spearman Correlation Coefficient (?) p value
1. RKB 1 0.782 <0.000
2. RKB 2 0.874 <0.000
3. RKB 3 0.906 <0.000
4. RKB 4 0.747 <0.000
5. RKB 5 0.666 <0.000
6. RKB 6 0.947 <0.000
7. RKB 7 0.943 <0.000
8. RKB 8 0.933 <0.000
9. RKB 9 0.795 <0.000
10. RKB 10 0.859 <0.000
11. RKB 11 0.819 <0.000
12. RKB 12 0.797 <0.000
13. RKB 13 0.751 <0.000
14. RKB 14 0.705 <0.000

Reliability of human body balance sensing biofeedback device against Functional Reach Test:

As per the analysis, intra-rater and inter-rater reliability of human body balance sensing biofeedback device and validity of human body balance sensing biofeedback device against FRT in 100 healthy individuals. Out of these 100 individuals, 40 (40%) were males and 60 (60%) were females. Mean age (±SD) was 32.27 years (14.08 years). Median age (Inter-Quartile Range) was 25 years (22 years)

Table 7: Inter-Rater and Inter-Rater Correlation of human body balance sensing biofeedback device with FRT

Sr. No. Variables Median (IQR) Spearman Correlation Coefficient (?) p value
1 Rater 1 Day 1 70 (60, 80) 0.760 <0.000
Rater 1 Day 2 70 (60, 80)
2 Rater 1 Day 1 70 (60, 80) 0.952 <0.000
Rater 2 70 (60, 80)
Rater 1 Day 1 70 (60, 80)

We applied Spearman’s rank correlation coefficient (Spearman’s rho(?)) to estimate the inter-class and intra-class correlation of human body balance sensing biofeedback device and correlation of human body balance sensing biofeedback device with FRT. It was observed that there is strong positive correlation between two consecutive human body balance sensing biofeedback device measurement by same rater on day 1 and day 2 in healthy individuals (p<0.000). Similarly, a strong positive correlation was observed between human body balance sensing biofeedback device measurements by Rater 1 and Rater 2 (p<0.000). This suggests excellent inter-rater and intra-rater reliability of human body balance sensing biofeedback device. It was observed that human body balance sensing biofeedback device measurements showed moderately positive correlation with FRT (p<0.000) which suggest good validity of human body balance sensing biofeedback device against FRT.
DISCUSSION:
For the BBS, components Forward reach (BBS 8), Pick up the object from the floor (BBS 9) and turning to look behind (BBS 10) shows positive correlation as for these components in the BBS scale higher the score better the condition simultaneously human body balance sensing biofeedback device also shows higher the score on device better the condition.

For the negative correlation of human body balance sensing biofeedback device with BBS is due to BBS components shows higher the score better the condition while human body balance sensing biofeedback device components shows lower the score on human body balance sensing biofeedback device better the condition.

Also for the BBS component, all 14 tasks are scored based on time taken to complete the task and external assistance to complete the task, while using the human body balance sensing biofeedback device, while performing the task time factor and external assistance cannot be evaluated by the device, so the highest deviation while performing the task being considered. human body balance sensing biofeedback device measures tri axial angular movement so while performing any task, subject may show deviation on other sides also but that are considered compensatory movements to complete the task. Ultimately human body balance sensing biofeedback device gives very precise deviation on any of the axis while performing any balance task. Thus, human body balance sensing biofeedback device is able to measure deviations or postural sway while performing any activities like climbing, walking, running etc…

CONCLUSION:
The human body balance sensing biofeedback device observes significant validity with certain areas of BBS as well as validity (0.838) suggest that this device must be taken into consideration for measuring trunk deviation i.e. tri axial angular movements. The human body balance sensing biofeedback device is light weighted, wearable device and easy to operate device for prospective research and development.
Without further description, it is believed that one of ordinary skill in the art can, using the preceding description and the illustrative examples, make and utilize the present invention and practice the claimed methods. It should be understood that the foregoing discussion and examples merely present a detailed description of certain preferred embodiments. It will be apparent to those of ordinary skill in the art that various modifications and equivalents can be made without departing from the spirit and scope of the invention.

LIST OF REFERENCE NUMERALS:

Human body balance sensing biofeedback device (100)
Wearable body balance positioning sensor (101)
Upper part of body balance positioning sensor (101a)
Lower part of body balance positioning sensor (101b)
Controller unit (102)
Battery (103)
USB charging port (104)
Switch (105)
LED light source (106)
Stabilizing belt (107)
Output display (108)
Lumbosacral junction (109)
,CLAIMS:Claims:
We Claim:
1. A human body balance sensing biofeedback device (100), comprising:
a wearable body balance positioning sensor (101) being capable to sense the position of the user;
a controller unit (102) for deriving continuous body sway information received through said body positioning sensor (101);
said body balance sensing position sensor (101) adapted to be attached to the body of a subject and providing continuous body sway signals indicative of the sway balance of the body;
a battery (103) to provide the power supply and a USB charging port (104) to charge the said battery (103);
a switch (105) being capable to switch on and switch off the said balance sensing biofeedback device (100);
a LED light source (106) to indicate the current status of the balance sensing biofeedback device (100); and
a stabilizing belt (107) to hold the device (100) tightly on to the back of the user;
wherein said controller unit (102) means for deriving continuous body sway balance information from the body sway signals and for generating an output display of the body sway information; and
an output display (108) means for displaying the position of body to an user of the system.

2. The human body balance sensing biofeedback device (100) as claimed in claim 1, wherein said body positioning sensor (101) located at the back of human body such as upper part (101a) of said body positioning sensor (101) being rested on a lumbosacral junction (109) which is center of gravity of the human body and lower part (101b) of said body positioning sensor (101) being rested on a sacrum.

3. The human body balance sensing biofeedback device (100) as claimed in claim 1, wherein said body positioning sensor (101) being capable to sense the deviation like anterior, posterior and lateral sways evaluate the postural stability and the fall risk.

4. The human body balance sensing biofeedback device (100) as claimed in claim 1, where the output display (108) can be but not limited to any wireless display being capable to display the positions of user through the data shared to a web application.

5. The human body balance sensing biofeedback device (100) as claimed in claim 1, wherein said controller unit (102) includes means for deriving body sway deviation from the body sway signals and means for generating an output of the body sway deviation.

6. The human body balance sensing biofeedback device (100) as claimed in claim 1, wherein said controller unit (102) further comprises means for comparing the body balance information with a set of safety rules defining a stability of the user to obtain a measure of the user’s balance control and for incorporating the measure of the subject's balance control in the operator display (108).

Dated this 15 February, 2023