BIOMEDICAL INSTRUMENTATION

Akash Kumar BhoiAssistant Professor

Dept. of AE&I, SMIT

Biomedical Instrumentation is the field of creating such instruments that help us to measure, record and transmit data to or from the body.

Biomedical Instrumentation

DOCTOR

PATIENT

SYMPTOMS

PHYSICIAN

TREATMENT

PATIENT

SYMPTOMS

INSTRUMENT

PHYSICIAN

DIAGNOSIS

TREATMENT

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CLASSIFICATION OF INSTRUMENTS

Engineering

Indicating

Recording

Monitoring

Data Logging

Analysis

Control

Medical

Diagnostic

Therapeutic

Supplementary

CLASSIFICATION OF BMI

6

Instrumentation System• A Measuring system is required to compare a quantity with a standard or to

provide an output that can be related to the quantity being measured

• The quantity to be measured is detected by an input transducer or sensor.

• The detected quantity may be converted to a mechanical or electrical form of energy

Display

Recorder

Signal conditioner

Measurand

Sensor

Input Output

7

Medical Measurement Chain

A/DConverter

Oscilloscope

LCD

ProcessCircuitSensor

surface electrode pressure transducer

temperature sensor pressure gauge

strain gauge ：

EMGInstrument

ECGInstrument

Blood PressureInstrument

．．．．．．Clinical Instrument

9Dr. T. Elsarnagawy

Generalized Instrumentation System

Dashed lines are optional for some application

Calibration procedure

Reference standard

Transducer

Calibrationmeasurements

Calibration is used to detect the errors in a sensor Correction if possible

Sensor

• Future of Bioinstrumentation is very bright. Day by day new ideas are researched and implemented. Such as;– harnessing the power of the

body to power devices– bringing more advanced

prosthetics– new methods of diagnosis and

treatment of diseases and problems which were not there before.

– Etc.

Future Of Bioinstrumentation

Brain hacking• Brain hacking refers the

possibility to attack the human brain to extract sensitive information such as data and memories, including also the capability to inject new information.

• The art of technology allow to perceive changes in the magnetic field related to brain activity making possible reading of people’s thoughts.

• When thinking of the future Biomedical instrumentation will have, we can be sure that it will have an important role in bringing about a better understanding and ways to communicate with the brain.