44586665 Kirti Gupta Wearable Biosensor

7/27/2019 44586665 Kirti Gupta Wearable Biosensor

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WEARABLE BIOSENSOR

Presented By:Kirti Gupta

1431332807

ECE-B (7th Sem)


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INTRODUCTION

WEARABLE BIOSENSOR=WEARABLE + BIOSENSOR

Object that can be worn on

body.

e.g. wrist watches, ring,

shirts etc.

Biosensor is an analytical

device used for detection of

analyte.

e.g. Blood Glucose Detector

Wearable Biosensor


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NEED OF WEARABLE BIOSENSOR

Remote monitoring of patients.

Training support for athletes.

Monitoring of individuals who work with hazardous

elements.

For continuous monitoring of heart patients.


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WEARABLE BIOSENSOR

Wearable monitoring devices that allow continuous

monitoring of physiological signals.

They rely on wireless sensors enclosed in items that can be

worn, such as ring or shirt.

The data sets recorded using these systems are then

processed to detect patients clinical situations.


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COMPONENTS OF WEARABLE BIOSENSOR

Three main components of wearable biosensors are:

Biological element: For sensing the presence and

concentration of a substance.

Transducer: The product of interaction ofbiological

component and sample may be a suitable chemical, charge

etc., which can be converted by transducer into an

electrical signal.

Associated Electronic Devices: The electrical signal

may be further amplified and can be read on digital panels.


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WORKING OF BIOSENSOR


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TYPES OF WEARABLE BIOSENSOR

There are two types of wearable biosensors:

Ring Sensor:

It allows one to continuously monitor heart rate and

oxygen saturation. The device is shaped like a ring.

Smart Shirt:

This technology has been used to integrate sensors for

monitoring the vital signs like temperature, heart rate and

respiration rate.


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RING SENSOR


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ABOUT RING SENSOR

It is a pulse oximetry, i.e. it monitors the oxygen

saturation.

It is based on the concept of photoconductor.


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WORKING OF RING SENSOR

In order to detect blood volume changes due to heart

contraction and expansion by photoelectric method,

normally photo resistors are used.

Light is emitted by LED and transmitted through the

artery and the resistance of photo resistor is determined bythe amount of light reaching it.

The photo resistor is connected as a part of voltage divider

circuit and produces a voltage that varies with the amount

ofblood in the finger.

Oxygenated blood absorb more light than deoxygenatedblood.

A noise cancellation filter is used to cancel the noise due to

motion of the finger.


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BLOCK DIAGRAM OF RING SENSOR


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APPLICATIONS

Wireless supervision of people during hazardous

operations.

In an overcrowded emergency department.

Chronic surveillance of abnormal heart failure.

In cardio-vascular disease for monitoring the hyper

tension.


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Advantages

Continuous monitoring.

Easy to use.

Reducing hospitalization fee

Disadvantages Initial cost is high.

Limited number of physiological parameters can be monitored.


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SMART SHIRT


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ABOUT SMART SHIRTS

Also known as GTWM i.e. Georgia Tech Wearable

Motherboard.

This GTWM (smart shirt) provides an extremely versatile

framework for the incorporation of sensing, monitoring andinformation processing devices.

It uses optical fibers to detect bullet wounds and special

sensors and interconnects to monitor the body vital signs

during combat conditions.

It is used to integrate sensors for monitoring the vital signslike temperature, heart rate and respiration rate.


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ARCHITECTURE OF SMART SHIRT


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WORKING OF SMART SHIRT

A combat soldier sensor to his body, pulls the smart shirt

on, and attaches the sensors to the smart shirt.

A signal is sent from one end of the plastic optical fiber to

a receiver at the other end. The emitter and the receiver

are connected to a Personal Status Monitor (psm) worn atthe hip level by the soldier.

If the light from the emitter does not reach the receiver

inside the PSM, it signifies that the smart shirt has been

penetrated (i.e.; the soldier has been shot).

The signal bounces back to the PSM forum the point ofpenetration, helping the medical personnel pinpoint the

exact location the solider wounds.


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Information on the soldiers wound and the condition is

immediately transmitted electronically from the PSM to a

medical unit.


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Advantages

Continuous monitoring.

Easy to use.

Reducing hospitalization fee.

Disadvantages

Initial cost is high.

Limited number of physiological parameters can be monitored.


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APPLICATIONS OF SMART SHIRT

Combat casualty care.

Medical monitoring.

Sports/ Performance monitoring.

Space experiments.

Mission critical/ hazardous application.

Fire- fighting.

Wearable mobile information infrastructure.

Used for mountain climbers.


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ADVANTAGES OF WBS

Rapid continuous control.

Facilitate continuous monitoring.

Easy to use. Reduce hospitalization fees.

Accurate.


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DISADVANTAGES OF WBS

Membrane may be fouled by deposits.

Initial cost is high Battery life is less.

Changes can put mechanical and chemical stress on

biosensors.


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FUTURETREND

The smart shirt can be used to design and experiment

real-time feedback mechanism to embrace the quality of

care for this individual by providing appropriate and timely

medical inspections.

Smart shirts delta acquisition capabilities can be used to

detect the condition when an individual is lapsing into a

diabetic shock and this integrated feedback mechanism can

provide the appropriate response to prevent a fatality.


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CONCLUSION

Applied to restricted area of potential market.

Limitations: Sensitivity And battery life.

Advanced technologies such as the smart shirt have at

partial to dramatically alter its landscape of healthcare

delivery and at practice of medicine as we know them

today.

It is leading to the realization of Affordable Healthcare,

Any place, Anytime, Anyone.


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REFERENCES

http://www.smartshirt.gatech.edu

http://www.wearables.gatech.edu

http://www.newstechpapers.com

http://en.wikipedia.org/wiki/Biosensor

http://www.sensatex.com/smartshirt.htm

www.seminarprojects.com/Thread-wearable-biosensors


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ANY

QUESTIONS


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Documents

44586665 Kirti Gupta Wearable Biosensor