The document provides an introduction to biomedical instrumentation. It discusses the importance of biomedical instrumentation in understanding human physiology and developing diagnostic and therapeutic devices. It describes the major physiological systems of the human body and how biomedical instruments are classified and used to take clinical and research measurements. Common medical measurements include blood pressure, ECG, EEG, pH, and blood gases which are detected using techniques like electrodes, cuffs, and electromagnetic sensors.
The Action and resting potential of the body are discussed. The working of body cell, tissue and how the electrical activity of body cell done? are discussed.
Biomedical Instrumentation and its Fundamentals,Bio electric Signals(ECG, EMG ,EEG)and its Electrodes ,Physiological Transducers,Blood Pressure ,Blood Flow,Cardiac Output ,Patient Safety,Physiological Effects of Electric current on human body etc...
The document discusses several key physiological systems in the human body including:
- The cardiovascular system which includes the heart and blood vessels that circulate blood throughout the body.
- The respiratory system which includes the lungs and airways that oxygenate blood and remove carbon dioxide.
- The muscular system which includes three main types of muscles that allow movement and maintain posture.
- The nervous system which acts as the control and communication network in the body through the brain, spinal cord, and nerves.
A Bioamplifier is an electrophysiological device, a variation of the instrumentation amplifier, used to gather and increase the signal integrity of physiologic electrical activity for output to various sources. It may be an independent unit, or integrated into the electrodes.
This document discusses patient monitoring systems and biotelemetry. It describes electrocardiogram (ECG) and blood pressure monitoring in hospitals. Intensive care unit (ICU) monitoring instruments that continuously measure vital signs are discussed. Biotelemetry systems that remotely transmit physiological data via radio frequency are then outlined, including the components of transmitters and receivers. Design considerations for biotelemetry systems using amplitude or frequency modulation are presented. Finally, both single-channel and multichannel biotelemetry systems are described.
Biomedical Signal Processing / Biomedical Signals/ Bio-signals/ Bio-signals C...Mehak Azeem
These amazing and highly informative slides presented to the IEEE Signal Processing Society of IEEE MESCE Student Branch. These slides aim to provide basic knowledge about biosignals, their classification, examples and their working.
For more information, please contact:
[mehakazeem@ieee.org]
This document provides an overview of biomedical instrumentation. It discusses how instrumentation is used to monitor and control process variables for measurement and control. Biomedical instrumentation specifically creates instruments to measure, record, and transmit data to and from the body. Some key types of biomedical instrumentation systems are direct/indirect, invasive/noninvasive, contact/remote for sensing and actuating in real-time or statically. Several important instruments are discussed in detail, including X-rays, electrocardiography, magnetic resonance imaging, ultrasound, and computed tomography. The document outlines the basic workings, advantages, and disadvantages of these key biomedical instruments.
The Action and resting potential of the body are discussed. The working of body cell, tissue and how the electrical activity of body cell done? are discussed.
Biomedical Instrumentation and its Fundamentals,Bio electric Signals(ECG, EMG ,EEG)and its Electrodes ,Physiological Transducers,Blood Pressure ,Blood Flow,Cardiac Output ,Patient Safety,Physiological Effects of Electric current on human body etc...
The document discusses several key physiological systems in the human body including:
- The cardiovascular system which includes the heart and blood vessels that circulate blood throughout the body.
- The respiratory system which includes the lungs and airways that oxygenate blood and remove carbon dioxide.
- The muscular system which includes three main types of muscles that allow movement and maintain posture.
- The nervous system which acts as the control and communication network in the body through the brain, spinal cord, and nerves.
A Bioamplifier is an electrophysiological device, a variation of the instrumentation amplifier, used to gather and increase the signal integrity of physiologic electrical activity for output to various sources. It may be an independent unit, or integrated into the electrodes.
This document discusses patient monitoring systems and biotelemetry. It describes electrocardiogram (ECG) and blood pressure monitoring in hospitals. Intensive care unit (ICU) monitoring instruments that continuously measure vital signs are discussed. Biotelemetry systems that remotely transmit physiological data via radio frequency are then outlined, including the components of transmitters and receivers. Design considerations for biotelemetry systems using amplitude or frequency modulation are presented. Finally, both single-channel and multichannel biotelemetry systems are described.
Biomedical Signal Processing / Biomedical Signals/ Bio-signals/ Bio-signals C...Mehak Azeem
These amazing and highly informative slides presented to the IEEE Signal Processing Society of IEEE MESCE Student Branch. These slides aim to provide basic knowledge about biosignals, their classification, examples and their working.
For more information, please contact:
[mehakazeem@ieee.org]
This document provides an overview of biomedical instrumentation. It discusses how instrumentation is used to monitor and control process variables for measurement and control. Biomedical instrumentation specifically creates instruments to measure, record, and transmit data to and from the body. Some key types of biomedical instrumentation systems are direct/indirect, invasive/noninvasive, contact/remote for sensing and actuating in real-time or statically. Several important instruments are discussed in detail, including X-rays, electrocardiography, magnetic resonance imaging, ultrasound, and computed tomography. The document outlines the basic workings, advantages, and disadvantages of these key biomedical instruments.
The document discusses an electromagnetic blood flow meter. It operates based on electromagnetic induction principles, inducing an EMF in blood flowing through a vessel perpendicular to a magnetic field. Electrodes placed across the vessel measure this induced EMF, which is proportional to blood velocity. The small EMF signal is amplified for measurement and low pass filtered to determine average blood flow rate. Advantages include a linear dynamic range and no mechanical limitations for measuring high and low blood flows.
Biopotentials are ionic voltages produced by electrochemical activity in cells. Certain cells like nerve and muscle cells are encased in a semi-permeable membrane that allows some substances to pass through while keeping others out. These membranes maintain a resting potential of -60 to -100 mV by allowing potassium and chloride ions into the cell while blocking sodium ions. When the membrane allows sodium ions to pass through, the cell's potential becomes slightly positive in what is called an action potential, changing the cell from its resting state. Transducers are used to convert these ionic potentials into electrical signals that can be measured and analyzed.
This document discusses electrical safety in medical environments. It outlines several hazards posed by electricity in these settings, including fire, hazardous substances, waste products, sound, electricity, and disasters. It then examines the physiological effects of electric current on the human body, such as stimulation of nerves and muscles, heating of tissues, and electrochemical burns. Threshold currents for perception, involuntary muscle contractions, respiratory paralysis and ventricular fibrillation are provided. The document also discusses electric power distribution, isolation systems, emergency power systems, electric faults in equipment, microshocks, and conductive paths to the heart in clinical devices.
Graphic record heart sound - Phonogram.
Recording the sounds connected with the pumping action of heart.
Sound from heart – phonocardiogram
Instrument to measure this – phonocardiograph
Basic function – to pick up the different heart sound,filter the required and display.
MEASUREMENT OF BIO POTENTIAL USING TWO ELECTRODES AND RECORDING PROBLEMSBharathasreejaG
YOU CAN LEARN ABOUT MEASUREMENT USING TWO ELECTRODES & RECORDING PROBLEMS# NEED OF MEDICAL RECORDING # ELECTRODE TO SKIN INTERFACE # NERNST EQUATION # NOISE DURING RECORDING# MOTION ARTIFACT# ELECTRODE TO ELECTROLYTE NOISE # ELECTROLYTE TO SKIN NOISE# THERMAL NOISE# AMPLIFICATION NOISE# CABLE MOVEMENT# OTHER NOISES # CODING FOR GENERATING NOISE
This document provides an overview of transducers for biomedical applications. It defines transducers as devices that convert one form of energy into another for measurement purposes. It classifies transducers as active or passive, analog or digital, and primary or secondary. It also discusses various transducer principles including capacitive, inductive, resistive, and piezoelectric. The document then focuses on specific biomedical applications, describing transducers used to measure electrical activity, blood pressure, blood flow, temperature, respiration, and pulse. Common transducer types for these applications include electrodes, strain gauges, inductive sensors, capacitive sensors, thermistors, and fiber optic sensors.
Bioelectrodes function as an interface between biological structures and electronic systems. They convert ionic potentials in the body to electronic potentials that can be measured. At rest, neurons maintain a potential of -70 mV due to ion concentration differences. An action potential occurs when the membrane reaches -55 mV, causing sodium and potassium ion channels to open and reverse the polarization. Action potentials propagate along axons to transmit signals. Synaptic transmission involves neurotransmitters being released at the synapse in response to an action potential. Bioelectrodes must have low impedance, be non-polarizing, and avoid motion artifacts when measuring biological signals like ECG, EEG, EMG.
This document provides an overview of biomedical instrumentation. It discusses key topics such as:
- The development of biomedical instrumentation from early devices like the electrocardiograph to modern advances enabled by surplus electronics after WWII.
- Key considerations for designing medical instrumentation systems, including range, sensitivity, linearity, and frequency response.
- Components of the man-instrument system including the subject, stimuli, transducers, signal conditioning equipment, and displays.
- Objectives of instrumentation systems like information gathering, diagnosis, evaluation, monitoring and control.
- Biometrics as the measurement of physiological variables and parameters that biomedical instrumentation provides tools to measure.
Telemetry involves measuring values at a remote location and transmitting the data to another location. It involves three steps - measuring a value, converting it to a signal, transmitting the signal, and reconverting it back to the original data. Factors like accuracy, whether the data is analog or digital, error detection/correction, and bandwidth influence telemetry system design. There are two main types - landline systems which use wires/cables over short distances, and radio frequency systems which use radio links from 1km to beyond 50km. Landline systems transmit current or voltage and have simple circuitry but limited range. Radio frequency systems transmit via radio links and are used for long range applications like spacecraft. Modulation schemes include amplitude modulation for
The working of diffrent transducers and its priciples are discussed. The various types of sensors, transducers for the biopotential detections are also discussed with necessary diagrams.
Sensors for Biomedical Devices and systemsGunjan Patel
This document provides an overview of sensors used in biomedical devices and systems. It begins by defining key terms like sensor, transducer, and actuator. It then discusses different types of sensors like active and passive sensors. Examples of commonly used biomedical sensors are presented. Sources of sensor error and important sensor terminology are explained. The document provides details on displacement transducers, piezoelectric transducers, and strain gauges. It also describes the Wheatstone bridge circuit configuration often used with biomedical sensors.
Topic 1 introduction of biomedical instrumentationGhansyam Rathod
Basic Description of the Biomedical Instrumentation subject and basics of the physiological system of human body discussed as per the syllabus of 2EC42 subject offered at Birla Vishvakarma Mahavidyalaya, Engineering Autonomous Institution.
Biomedical Instrumentation introduction, BioamplifiersPoornima D
This document provides an introduction to medical instrumentation and bioamplifiers. It discusses how medical instrumentation measures and monitors physiological signals in the body using sensors. The key components of a biomedical instrumentation system are described including the measurand, sensor/transducer, signal conditioner, display, and data storage. It then focuses on bioamplifiers, explaining the types (differential, operational, instrumentation, isolation), their characteristics, and how they are used to amplify weak biopotential signals from the body while maintaining signal integrity.
Biotelemetry is the measurement and transmission of biological parameters such as heart rate, blood pressure, and body temperature from a distance. It allows for monitoring of things like astronauts in space, patients during exercise or in ambulances, and collecting medical data from homes or offices. It also enables research on unrestrained animals in their natural habitats. Biotelemetry systems consist of components like amplifiers, oscillators, power supplies, analog-to-digital converters, digital-to-analog converters, transducers, and processors to adapt existing measurement methods to transmit the resulting data.
This document provides an overview of biomedical transducers and basic bioinstrumentation systems. It describes the typical components as including a subject, primary sensing device, transducer, signal processing unit, and terminating stage. The transducer receives a physical quantity from the primary sensing device and converts it into an electrical quantity. The signal processing unit then amplifies and modifies the electrical signal as needed before it reaches the terminating stage, which can include a display, recorder, controller and computer to output the essential information measured from the subject in a meaningful way.
This document discusses biopotentials and methods for measuring them. It begins with an introduction to biopotentials and what they are. It then discusses the mechanisms behind biopotentials, focusing on ion concentrations and how they generate electrical potentials. The rest of the document discusses specific measurement methods like ECG, EEG, EMG, EOG, and considerations for biopotential measurement like electronics, electrodes, and practices.
This document discusses virtual instrumentation. It begins with an introduction and overview of the history and architecture of virtual instrumentation. The document then discusses the key components of a virtual instrumentation system including sensors, data acquisition, processing, and output. It provides examples of applications for virtual instrumentation in fields like biomedicine and electrical engineering. Finally, it outlines the advantages of lower costs, flexibility, and portability as well as disadvantages related to security and power consumption.
Basic theory of accelerometer, gyroscope and magnetometer. Newton’s law
of Classical Mech. Inertial and non inertial reference system: centrifugal,
Coriolis and Euler forces. IMU hardware description. Static IMU’s Noise
evaluation: mean and std deviation in all axis w.r.t. data sheet. Drift effect
in MATLAB. Sit-to-stand experiment with 2 IMUs: development of an
algorithm able to estimate the duration of stand-up, sit-down and variation
of the bending angles.
Biomedical engineering is the application of engineering principles and design concepts to medicine and biology. It seeks to close the gap between engineering and medicine by designing products and procedures that solve medical problems, such as artificial organs, prostheses, medical instrumentation, and health systems. Biomedical engineers work with doctors and scientists to develop and apply technology including designing equipment to analyze blood samples, creating artificial hearts and skin grafts, and developing prosthetic hips and devices to repair bones.
The document discusses an electromagnetic blood flow meter. It operates based on electromagnetic induction principles, inducing an EMF in blood flowing through a vessel perpendicular to a magnetic field. Electrodes placed across the vessel measure this induced EMF, which is proportional to blood velocity. The small EMF signal is amplified for measurement and low pass filtered to determine average blood flow rate. Advantages include a linear dynamic range and no mechanical limitations for measuring high and low blood flows.
Biopotentials are ionic voltages produced by electrochemical activity in cells. Certain cells like nerve and muscle cells are encased in a semi-permeable membrane that allows some substances to pass through while keeping others out. These membranes maintain a resting potential of -60 to -100 mV by allowing potassium and chloride ions into the cell while blocking sodium ions. When the membrane allows sodium ions to pass through, the cell's potential becomes slightly positive in what is called an action potential, changing the cell from its resting state. Transducers are used to convert these ionic potentials into electrical signals that can be measured and analyzed.
This document discusses electrical safety in medical environments. It outlines several hazards posed by electricity in these settings, including fire, hazardous substances, waste products, sound, electricity, and disasters. It then examines the physiological effects of electric current on the human body, such as stimulation of nerves and muscles, heating of tissues, and electrochemical burns. Threshold currents for perception, involuntary muscle contractions, respiratory paralysis and ventricular fibrillation are provided. The document also discusses electric power distribution, isolation systems, emergency power systems, electric faults in equipment, microshocks, and conductive paths to the heart in clinical devices.
Graphic record heart sound - Phonogram.
Recording the sounds connected with the pumping action of heart.
Sound from heart – phonocardiogram
Instrument to measure this – phonocardiograph
Basic function – to pick up the different heart sound,filter the required and display.
MEASUREMENT OF BIO POTENTIAL USING TWO ELECTRODES AND RECORDING PROBLEMSBharathasreejaG
YOU CAN LEARN ABOUT MEASUREMENT USING TWO ELECTRODES & RECORDING PROBLEMS# NEED OF MEDICAL RECORDING # ELECTRODE TO SKIN INTERFACE # NERNST EQUATION # NOISE DURING RECORDING# MOTION ARTIFACT# ELECTRODE TO ELECTROLYTE NOISE # ELECTROLYTE TO SKIN NOISE# THERMAL NOISE# AMPLIFICATION NOISE# CABLE MOVEMENT# OTHER NOISES # CODING FOR GENERATING NOISE
This document provides an overview of transducers for biomedical applications. It defines transducers as devices that convert one form of energy into another for measurement purposes. It classifies transducers as active or passive, analog or digital, and primary or secondary. It also discusses various transducer principles including capacitive, inductive, resistive, and piezoelectric. The document then focuses on specific biomedical applications, describing transducers used to measure electrical activity, blood pressure, blood flow, temperature, respiration, and pulse. Common transducer types for these applications include electrodes, strain gauges, inductive sensors, capacitive sensors, thermistors, and fiber optic sensors.
Bioelectrodes function as an interface between biological structures and electronic systems. They convert ionic potentials in the body to electronic potentials that can be measured. At rest, neurons maintain a potential of -70 mV due to ion concentration differences. An action potential occurs when the membrane reaches -55 mV, causing sodium and potassium ion channels to open and reverse the polarization. Action potentials propagate along axons to transmit signals. Synaptic transmission involves neurotransmitters being released at the synapse in response to an action potential. Bioelectrodes must have low impedance, be non-polarizing, and avoid motion artifacts when measuring biological signals like ECG, EEG, EMG.
This document provides an overview of biomedical instrumentation. It discusses key topics such as:
- The development of biomedical instrumentation from early devices like the electrocardiograph to modern advances enabled by surplus electronics after WWII.
- Key considerations for designing medical instrumentation systems, including range, sensitivity, linearity, and frequency response.
- Components of the man-instrument system including the subject, stimuli, transducers, signal conditioning equipment, and displays.
- Objectives of instrumentation systems like information gathering, diagnosis, evaluation, monitoring and control.
- Biometrics as the measurement of physiological variables and parameters that biomedical instrumentation provides tools to measure.
Telemetry involves measuring values at a remote location and transmitting the data to another location. It involves three steps - measuring a value, converting it to a signal, transmitting the signal, and reconverting it back to the original data. Factors like accuracy, whether the data is analog or digital, error detection/correction, and bandwidth influence telemetry system design. There are two main types - landline systems which use wires/cables over short distances, and radio frequency systems which use radio links from 1km to beyond 50km. Landline systems transmit current or voltage and have simple circuitry but limited range. Radio frequency systems transmit via radio links and are used for long range applications like spacecraft. Modulation schemes include amplitude modulation for
The working of diffrent transducers and its priciples are discussed. The various types of sensors, transducers for the biopotential detections are also discussed with necessary diagrams.
Sensors for Biomedical Devices and systemsGunjan Patel
This document provides an overview of sensors used in biomedical devices and systems. It begins by defining key terms like sensor, transducer, and actuator. It then discusses different types of sensors like active and passive sensors. Examples of commonly used biomedical sensors are presented. Sources of sensor error and important sensor terminology are explained. The document provides details on displacement transducers, piezoelectric transducers, and strain gauges. It also describes the Wheatstone bridge circuit configuration often used with biomedical sensors.
Topic 1 introduction of biomedical instrumentationGhansyam Rathod
Basic Description of the Biomedical Instrumentation subject and basics of the physiological system of human body discussed as per the syllabus of 2EC42 subject offered at Birla Vishvakarma Mahavidyalaya, Engineering Autonomous Institution.
Biomedical Instrumentation introduction, BioamplifiersPoornima D
This document provides an introduction to medical instrumentation and bioamplifiers. It discusses how medical instrumentation measures and monitors physiological signals in the body using sensors. The key components of a biomedical instrumentation system are described including the measurand, sensor/transducer, signal conditioner, display, and data storage. It then focuses on bioamplifiers, explaining the types (differential, operational, instrumentation, isolation), their characteristics, and how they are used to amplify weak biopotential signals from the body while maintaining signal integrity.
Biotelemetry is the measurement and transmission of biological parameters such as heart rate, blood pressure, and body temperature from a distance. It allows for monitoring of things like astronauts in space, patients during exercise or in ambulances, and collecting medical data from homes or offices. It also enables research on unrestrained animals in their natural habitats. Biotelemetry systems consist of components like amplifiers, oscillators, power supplies, analog-to-digital converters, digital-to-analog converters, transducers, and processors to adapt existing measurement methods to transmit the resulting data.
This document provides an overview of biomedical transducers and basic bioinstrumentation systems. It describes the typical components as including a subject, primary sensing device, transducer, signal processing unit, and terminating stage. The transducer receives a physical quantity from the primary sensing device and converts it into an electrical quantity. The signal processing unit then amplifies and modifies the electrical signal as needed before it reaches the terminating stage, which can include a display, recorder, controller and computer to output the essential information measured from the subject in a meaningful way.
This document discusses biopotentials and methods for measuring them. It begins with an introduction to biopotentials and what they are. It then discusses the mechanisms behind biopotentials, focusing on ion concentrations and how they generate electrical potentials. The rest of the document discusses specific measurement methods like ECG, EEG, EMG, EOG, and considerations for biopotential measurement like electronics, electrodes, and practices.
This document discusses virtual instrumentation. It begins with an introduction and overview of the history and architecture of virtual instrumentation. The document then discusses the key components of a virtual instrumentation system including sensors, data acquisition, processing, and output. It provides examples of applications for virtual instrumentation in fields like biomedicine and electrical engineering. Finally, it outlines the advantages of lower costs, flexibility, and portability as well as disadvantages related to security and power consumption.
Basic theory of accelerometer, gyroscope and magnetometer. Newton’s law
of Classical Mech. Inertial and non inertial reference system: centrifugal,
Coriolis and Euler forces. IMU hardware description. Static IMU’s Noise
evaluation: mean and std deviation in all axis w.r.t. data sheet. Drift effect
in MATLAB. Sit-to-stand experiment with 2 IMUs: development of an
algorithm able to estimate the duration of stand-up, sit-down and variation
of the bending angles.
Biomedical engineering is the application of engineering principles and design concepts to medicine and biology. It seeks to close the gap between engineering and medicine by designing products and procedures that solve medical problems, such as artificial organs, prostheses, medical instrumentation, and health systems. Biomedical engineers work with doctors and scientists to develop and apply technology including designing equipment to analyze blood samples, creating artificial hearts and skin grafts, and developing prosthetic hips and devices to repair bones.
Biomedical engineering and recent trendsHanzelah Khan
This document provides an overview of biomedical engineering, including its applications, classifications, sub-disciplines, recent trends, and career prospects. Biomedical engineering applies engineering principles to healthcare for purposes like diagnosis, monitoring, and therapy. It combines engineering with medical and biological sciences. Recent trends include advances in medical imaging, biomechanics, biomaterials, rehabilitation engineering, and bioinstrumentation. Biomedical engineering offers excellent job prospects and earning potential, with a projected 10-year job growth of 72 percent.
This document discusses biomedical instrumentation and equipment. It begins by defining biomedical engineering as the application of engineering principles to medicine and biology. Biomedical instruments can be classified into diagnostic, therapeutic, clinical, laboratory, and research equipment. Measurement using biomedical instruments can be either in vivo, measuring parameters within the living body, or in vitro, measuring parameters from samples outside the body. Some common biomedical instruments listed include colorimeters, spectrophotometers, centrifuges, balances, electrophoresis devices, chromatography devices, and analyzers.
This document provides an overview of biomedical engineering. It begins by defining biomedical engineering as the application of engineering principles, techniques and methods to solve medical and biological problems. It then discusses the diversity in related terminology and the roles of medical engineers, clinical engineers and bioengineers. The document outlines several branches of biomedical engineering including biomechanics, biomaterials, medical devices and clinical engineering. It concludes by discussing the relationships between biomedical engineering and other fields like medicine, physics, and various engineering disciplines.
Transducers can be classified in several ways:
- Active transducers generate their own power to produce an output signal proportional to the input, like piezoelectric transducers, while passive transducers require an external power source.
- Primary transducers convert a physical input directly into motion, then secondary transducers convert that motion into an electrical signal.
- Transducers can also be categorized by their transduction principle, such as capacitive, electromagnetic, inductive, piezoelectric, photovoltaic, and photoconductive.
- Analog transducers produce a continuous output signal, versus digital transducers which produce a pulse-based 0s and 1s
1. Biomedical instrumentation is used for monitoring, diagnosis, and therapy by taking measurements of variables in the human body. It involves the fields of engineering, biology, chemistry, and medicine.
2. Biomedical instrumentation is classified into clinical instrumentation for diagnosis and treatment of patients and research instrumentation used primarily to gain new medical knowledge.
3. Biomedical instruments measure various physiological parameters and are classified based on the system or organ they are associated with such as heart, brain, muscle, and lung instruments. Common medical measurements include blood pressure, ECG, EEG, temperature, and pH.
Introduction to human body, Definition of anatomy and physiology and its branches, Levels of Structural Organization like Chemical level,
Cellular level, Tissue level, Organ level, Organ system level, Organismal level. Systems Of The Human Body like Integumentary System/ Exocrine System, Skeletal System, Muscular System, Nervous System, Endocrine system,
Cardiovascular system/circulatory system, Lymphatic system and immunity system,
Respiratory system,
Digestive system,
Urinary system and renal system,
Reproductive system and its structure and functions.
Characteristics of the living human organism, Basic life processes like Metabolism, Responsivenes, Movement, Growth, Differentiation, Reproduction. Homeostasis and Feedback system and its three basic components: Sensor, control center and an effector. Anatomical terminology like prone and supine position. Regional names lie Head, neck, trunk, upper and lower limbs.
Directional terms like Anterior and posterior. Planes and Sections like Sagittal plane, midsagittal or median plane, parasagittal, Frontal plane, Transverse or horizontal plane, Body Cavity like ventral and dorsal cavity, thoracic cavity and abdominopelvic cavity, cranial cavity and spinal cavity. Serous membrane like Parietal layer Visceral layer.
Abdominopelvic region and quadrants: four quadrants and nine areas like right upper, right lower, left upper, and left lower quadrants and the right hypochondriac, right lumbar, right illiac, epigastric, umbilical, hypogastric (or pubic), left hypochondriac, left lumbar, and left illiac divisions.
The document provides an overview of the human body's organization and systems. It discusses the different levels of structural complexity from atoms and molecules to cells, tissues, organs, and systems. The major body systems are described including musculoskeletal, digestive, urinary, reproductive, cardiovascular, nervous, endocrine, respiratory, integumentary, and their functions in maintaining homeostasis. Homeostasis involves control systems that use negative feedback to regulate internal variables like temperature, pH, and glucose levels. Imbalances can develop if control is poor and threaten health.
The document discusses the key systems and structures of the human body. It defines anatomy as the study of the structure of the body and physiology as the study of how the body and its parts work. It then provides information on each of the main organ systems, including their functions. These systems include the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.
This chapter discusses the levels of organization in the human body from cells to organ systems. It describes anatomical position and planes used to describe body structure locations. The major body cavities and divisions of the abdominal cavity are presented. Directional terms and an overview of pathology, including causes of disease, diagnosis, and prognosis, are provided to give context to studying the structure and functions of the body and disease states.
This document provides an overview of human anatomy. It defines anatomy as the study of body structure and physiology as the study of body function. The two major types of anatomy are gross anatomy, which involves visible structures, and microscopic anatomy, which involves tiny structures like cells and tissues. Anatomy is further divided into subdisciplines including comparative, developmental, regional, surface, and systemic anatomy. The document also outlines the levels of structural organization in the human body from atoms to organ systems. It lists and describes the 11 major organ systems including the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.
This document provides an overview of anatomy and physiology, including:
1. It defines anatomy and physiology, and explains their relationship.
2. It describes the six levels of biological organization in the human body, from chemical to organism.
3. It outlines the 11 major organ systems in the human body and their basic structures and functions.
4. It explains homeostasis as the maintenance of stable internal conditions in the body despite external changes, and the roles of receptors, control centers, and effectors in negative feedback loops that regulate homeostasis.
This document provides an overview of human anatomy and physiology. It defines anatomy as the study of the structure of the body and its parts, and physiology as the study of how the body and its organs function. The document then outlines the main subdivisions of both anatomy and physiology. It also lists and briefly describes the 11 major body systems, including their main organs and functions. Finally, it discusses some key characteristics of the living human body, such as the basic life processes and homeostasis through feedback mechanisms that help maintain stability in the internal environment.
This document provides an overview of physiology and the functional organization of the human body. It discusses cells and tissues, then describes the 11 organ systems that make up the human body and work together to form the whole organism. Finally, it defines homeostasis as the self-regulating processes that maintain stable internal conditions in the body, such as a constant temperature, and provides an example of temperature regulation in humans.
The document provides an overview of the major human body systems, including:
- The anatomy and physiology of each system and their basic functions. The systems covered include: respiratory, circulatory, digestive, endocrine, immune, lymphatic, musculoskeletal, nervous, reproductive, and urinary.
- Descriptions of key organs within each system and their roles in essential biological processes like gas exchange, nutrient transport, hormone production, defense against pathogens, fluid transport, movement, and waste removal.
- Reproductive cycles and gamete production in the male and female systems.
The document summarizes the major human body systems, including:
- The nervous system which includes the central and peripheral nervous systems and neurons.
- The integumentary system which includes skin, hair, and nails to protect the body.
- The respiratory system which allows for intake of oxygen and expulsion of carbon dioxide through the nose, mouth, pharynx, larynx, trachea and lungs.
- The digestive system which converts food into nutrients through the organs of the gastrointestinal tract.
- Other systems summarized include excretory, skeletal, muscular, circulatory, endocrine, reproductive, and lymphatic.
The document provides an overview of the key concepts covered in the introduction to human anatomy and physiology, including:
1. It defines anatomy and physiology, and describes the different levels of structural organization in the human body from chemicals to organ systems.
2. It outlines the 11 major organ systems and their basic functions.
3. It discusses the basic life processes and physiological needs required to maintain life, including homeostasis, and the mechanisms by which the body maintains stable internal conditions.
This document provides an overview of anatomy and physiology. It begins by defining anatomy as the study of structure and physiology as the study of function. It describes different methods of studying anatomy, including surface observation, dissection, palpation, auscultation, and percussion. It then discusses the hierarchy of biological complexity from molecules to cells to tissues to organs to organ systems. The document also defines and provides examples of organs, tissues, organelles, and molecules. It lists and describes the 11 major organ systems of the human body. Finally, it introduces some key anatomical concepts and terminology used to describe the human body.
This document discusses the basic levels of organization in the human body from cells to organ systems. It covers cells, tissues, organs, organ systems, and the human body as an organism. It also defines anatomical terms used to describe the body such as anatomical position, body planes, cavities, abdominal quadrants and regions, and divisions of the spinal column. The purpose is to provide understanding of general anatomical concepts relevant to the study of pathology.
The document provides an overview of human anatomy and physiology, describing the basic levels of organization in the human body from cells to organ systems, and covering the key functions and components of major body systems including the nervous, respiratory, muscular, skeletal, digestive, circulatory, lymphatic, integumentary, excretory, reproductive and endocrine systems. It also discusses basic life processes, homeostasis, and feedback systems that help maintain stable internal body conditions.
This document provides a review of various human body systems, including the integumentary, respiratory, circulatory, muscular, skeletal, digestive, endocrine, nervous, and excretory systems. It lists the key parts and functions of each system and explains how some systems work together, such as the respiratory and circulatory systems in gas exchange and the circulatory and excretory systems in waste removal. Key terms related to anatomy and physiology are also defined.
This document provides an overview of human anatomy and physiology. It defines anatomy and physiology, and describes their levels of organization from atoms to organ systems. The 11 organ systems of the body are identified. Basic life processes like metabolism, movement, growth and homeostasis are explained. Key anatomical terminology is introduced, including body cavities, planes, sections and abdominal regions. Feedback mechanisms like thermoregulation and insulin control of blood glucose are summarized as examples of homeostasis.
Chapter 1 Introduction to Anatomy and PhysiologyYukti Sharma
This document provides an introduction to human anatomy and physiology. It defines anatomy as the study of body structure and physiology as the study of body functions. It describes the different levels of organization in the human body from chemicals to cells to tissues to organs to organ systems. It explains homeostasis as the maintenance of equilibrium in the internal environment and feedback mechanisms that help regulate homeostasis. It also defines important anatomical terminology and describes the major body cavities and planes.
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Eqautions_1_Industrial Instrumentation - Flow Measurement Important Equations...Burdwan University
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Bio medical instrument – introduction
1. Bio Medical Instrument –
Introduction
ER. FARUK BIN POYEN, Asst. Professor
DEPT. OF AEIE, UIT, BU, BURDWAN, WB, INDIA
faruk.poyen@gmail.com
2. Contents
Introduction
Importance of Bio Medical Instrumentation
Basic Objectives of Biomedical Instrumentation
Anatomy and Physiology of Human Body
Physiological Systems of Human Body
Classification of Bio Medical Instruments
Biomedical Measurements
Sources of Biomedical Signals
Man – Instrumentation System
Constraints in Medical Instrumentation Design
Common Medical Measurements and Instruments
2
3. Introduction:
Medical instrumentation is a subdivision of biomedical engineering. It emphasizes the measurement of
all the variables in the body for the use of diagnosis and all the devices that perform therapy.
It is a cross-disciplinary field of study comprising
Engineering
Biology
Chemistry
Medicine
Biomedical Instrumentation is used to take measurements for
Monitoring
Diagnostic means
Therapy
Biomedical instrumentation is generally classified into two major types:
Clinical Instrumentation is devoted to diagnosis, care and treatment of patients.
Research Instrumentation is used primarily in search for new knowledge pertaining to various systems
composing the human organism.
3
4. Importance of Bio Medical Instrumentation:
Studying of Biomedical Instrumentation helps in the following manners:
1. To understand mechanisms, efficiencies & physical changes of various subsystems of
the body.
2. To evolve an instrumentation system for diagnosis, therapy and supplementation of
body function.
3. To obtain qualitative & quantitative knowledge through different instruments which
can help for analysis of disorders, and further the Biomechanics of the cure process.
4. To understand Bio-Chemico-Electro – Thermo- Hydraulico- Pneumatico- Physico-
Magnato- Mechano – Dynamic actions and changes of various sub systems of the body
in normal states.
5. To understand above actions & changes in various sub systems of the body in the
abnormal states i.e. in Pathology.
6. To obtain qualitative & quantitative knowledge of what drug does to the body
(Pharmacodynamics) and what body does to the drug.
4
5. Basic Objectives of the Biomedical Instrumentation
Under mentioned are the principal objectives of a biomedical
instrumentation system
1. Information Gathering: Instruments used to measure natural
phenomena to aid man in the quest of knowledge about himself.
2. Diagnosis: Measurements are made to help detect and correct
malfunction of the system being measured.
3. Evaluation: It is used to determine the ability of a system to meet its
functional requirements.
4. Monitoring: It is used to monitor certain situation for continuous or
periodic information.
5. Control: It is used to automatically control the operation of a system
based on changes in multiple internal parameters.
5
6. Anatomy and Physiology:
The science of structure of the body is known as Anatomy and that of its functioning is
known as Physiology.
Anatomy is further classified as
1. Gross Anatomy: It deals with the study of structure of the organs with naked eyes on
dissection.
2. Topographical Anatomy: It deals with the position of the organs in relation to each other.
3. Microscopic Anatomy (Histology): It is the study of the minute structures of the organs by
means of microscopy. Cytology is a special field where structure, function and
development of the cells are studied.
Physiology is classified into
1. Cell Physiology: The study of the functions of the cells.
2. Pathophysiology: It relates to the pathological (symptoms of diseases) functions of the
organs.
3. Circulatory Physiology: The study of blood circulation relating to the functioning of the
heart.
4. Respiratory Physiology: It deals with the functioning of the breathing organs.
6
7. Physiological Systems of the Human Body:
There are several systems working parallel to each other in our body. They are as
mentioned below.
1. Cardiovascular System.
2. Respiratory System.
3. Nervous System.
4. Skeletal System.
5. Muscular System.
6. Digestive System.
7. Endocrine System.
8. Exocrine System.
9. Lymphatic System.
10. Urinary System.
11. Reproductive System.
7
8. System Highlights:
Cardiovascular System: The circulatory system, also called the cardiovascular system
or the vascular system, is an organ system that permits blood to circulate and transport
nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones,
and blood cells to and from the cells in the body to provide nourishment and help in
fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Respiratory System: The respiratory system (called also respiratory apparatus,
ventilator system) is a biological system consisting of specific organs and structures
used for the process of respiration in an organism. The respiratory system is involved
in the intake and exchange of oxygen and carbon dioxide between an organism and the
environment. In air-breathing vertebrates like human beings, respiration takes place in
the respiratory organs called lungs.
Nervous System: The network of nerve cells and fibers which transmits nerve
impulses between parts of the body. It consists of two main parts, the central nervous
system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain
and spinal cord. The PNS consists mainly of nerves, which are enclosed bundles of the
long fibers or axons that connect the CNS to every other part of the body.
8
9. System Highlights:
Skeletal System: The skeletal system includes all of the bones and joints in the body.
Each bone is a complex living organ that is made up of many cells, protein fibers, and
minerals. The skeleton acts as a scaffold by providing support and protection for the
soft tissues that make up the rest of the body. The skeletal system also provides
attachment points for muscles to allow movements at the joints.
Muscular System: The muscular system is an organ system consisting of skeletal,
smooth and cardiac muscles. It permits movement of the body, maintains posture, and
circulates blood throughout the body. The muscular system in vertebrates is controlled
through the nervous system, although some muscles (such as the cardiac muscle) can
be completely autonomous. Together with the skeletal system it forms the
musculoskeletal system, which is responsible for movement of the human body.
Digestive System: The digestive system is a group of organs working together to
convert food into energy and basic nutrients to feed the entire body. Food passes
through a long tube inside the body known as the alimentary canal or the
gastrointestinal tract (GI tract). The alimentary canal is made up of the oral cavity,
pharynx, esophagus, stomach, small intestines, and large intestines.
9
10. System Highlights:
Endocrine System: The endocrine system includes all of the glands of the body and
the hormones produced by those glands. The glands are controlled directly by
stimulation from the nervous system as well as by chemical receptors in the blood and
hormones produced by other glands. By regulating the functions of organs in the body,
these glands help to maintain the body’s homeostasis.
Exocrine System: The exocrine system is an organ system consisting of the skin, hair,
nails, and exocrine glands. The skin is only a few millimeters thick yet is by far the
largest organ in the body. The average person’s skin weighs 10 pounds and has a
surface area of almost 20 square feet. Skin forms the body’s outer covering and forms a
barrier to protect the body from chemicals, disease, UV light, and physical damage.
Lymphatic System: The immune and lymphatic systems are two closely related organ
systems that share several organs and physiological functions. The immune system is
our body’s defense system against infectious pathogenic viruses, bacteria, and fungi as
well as parasitic animals and protists. The immune system works to keep these harmful
agents out of the body and attacks those that manage to enter.
10
11. System Highlights:
Urinary System: The urinary system consists of the kidneys, ureters, urinary bladder,
and urethra. The kidneys filter the blood to remove wastes and produce urine. The
ureters, urinary bladder, and urethra together form the urinary tract, which acts as a
plumbing system to drain urine from the kidneys, store it, and then release it during
urination. Besides filtering and eliminating wastes from the body, the urinary system
also maintains the homeostasis of water, ions, pH, blood pressure, calcium and red
blood cells.
Reproductive System: The male reproductive system includes the scrotum, testes,
spermatic ducts, sex glands, and penis. These organs work together to produce sperm,
the male gamete, and the other components of semen. These organs also work together
to deliver semen out of the body and into the vagina where it can fertilize egg cells to
produce offspring. The female reproductive system includes the ovaries, fallopian
tubes, uterus, vagina, vulva, mammary glands and breasts. These organs are involved
in the production and transportation of gametes and the production of sex hormones.
The female reproductive system also facilitates the fertilization of ova by sperm and
supports the development of offspring during pregnancy and infancy.
11
12. Classification of Biomedical Instruments:
All biomedical instruments are categorized into different sectors of operations.
Following shows different instruments those are employed in different functional
areas.
12
BLOOD INSTRUMENTS HEART INSTRUMENT
Blood Pressure meter ECG
Blood PH meter Pace Maker
Blood flow meter Defibrillator
Blood cell counter Heart Lung Machine
Calorimeter Bed side Monitor
Spectra – Photometer Plethysmograph
Flame photometer Electronic stethoscope
Digital BP meter Phonocardiograph
13. Classification of Biomedical Instruments:
BRAIN INSTRUMENTS MUSCLE INSTRUMENTS
EEG EMG
Tomograph Muscle Stimulator
13
KIDNEY INSTRUMENTS EAR INSTRUMENTS
Dialysis Instrument Audiometer
Lithotripsy Hearing aid
EYE INSTRUMENTS LUNG INSTRUMENTS
Occulometer Spirometer
Aid for blind
14. Classification of Biomedical Instruments:
BODY INSTRUMENTS PHYSIOTHERAPHY INSTRUMENTS
Ultrasonography Diathermy, Short Wave
Thermograph Electro Sleeper
Radiograph Vibrator (Massage type)
EPF U.V. Lamph
Endoscope Microwave Diathermy
14
15. Biomedical Measurements
Biomedical instrumental measurements are divided in to two categories.
1. IN VIVO MEASURMENTS – In vivo measurements are made on or
within the living organism itself, e.g. a device inserted into the blood
stream to measure the pH of the blood directly.
2. IN VITRO MEASURMENTS – In vitro measurements are made
outside the body, even though it relates to the functions of the body,
e.g. measurements of pH of sample of blood that has been drawn from
patients’ body.
15
16. Sources of Biomedical Signals:
Biometrics is the branch of science that deals with the measurement of physiological
variables and parameters.
Biomedical signals are used primarily for extracting information on biological system
under investigation.
1. Bioelectric Signals: These are unique to the biomedical systems. They are generated by
nerve cells and muscle cells. Their basic source is the cell membrane potential which under
certain conditions may be excited to generate an action potential. The electric field generated
by the action of many cell constitutes the bio-electric signal. The most common examples of
bioelectric signals are the ECG (electrocardiographic) and EEG (electroencephalographic)
signals.
2. Bio acoustic Signals: The measurement of acoustic signals created by many biomedical
phenomena provides information about the underlying phenomena. The examples of such
signals are; flow of blood in the heart, through the heart's valves and flow of air through the
upper and lower airways and in the lungs which generate typical acoustic signal.
3. Biomechanical Signals: These signals originate from some mechanical function of the
biological system. They include all types of motion and displacement signals, pressure and
flow signals. The movement of the chest wall in accordance with the respiratory activity is an
example of this type of signal.
16
17. Sources of Biomedical Signals:
4. Biochemical Signals: The signals which are obtained as a result of chemical measurements from
the living tissues or from samples analyzed in the laboratory. The examples are measurement of
partial pressure of carbon dioxide (pCO2), partial pressure of oxygen (pO2) and concentration of
various ions in the blood.
5. Bio magnetic Signals: Extremely weak magnetic fields are produced by various organs such as the
brain, heart and lungs. The measurement of these signals provides information which is not available
in other types of bio signals such bioelectric signals. A typical example is that of magneto
encephalograph MEG signals from the brain.
6. Bio – optic Signals: These signals are generated as result of optical functions of the biological
systems, occurring either naturally or induced by the measurement process. For example, blood
oxygenation may be estimated by measuring the transmitted/back scattered light from a tissue at
different wavelengths.
7. Bio – impedance Signals: The impedance of the tissue is a source of important information
concerning its composition, blood distribution and volume. The measurement of galvanic skin
resistance GSR is a typical example of this type of signal. The bio-impedance signal is also obtained
by injecting sinusoidal current in the tissue and measuring the voltage drop generated by the tissue
impedance. The measurement of respiration rate based on bio-impedance technique is an example of
this type of signals.
17
19. Man - Instrumentation System:
The overall system including both the human body and the
instrumentation required for its measurement is called the man –
instrumentation system. The set of instruments and equipment utilized in
the measurement of multiple characteristics plus the presentation of
these information in a readable and interpretable manner is called an
instrumentation system. In the man – instrumentation system, the human
body is treated as the black box (the unknown system) within which
several kinds of signals and systems are found, all interacting with each
other.
19
20. Man - Instrumentation System:
Components of the Man – Instrumentation system:
1. The system components of Man – Instrumentation system are listed below.
2. The subject - The human being on which the measurements are to be carried out is
referred to as the subject under study or monitoring.
3. Stimulus: in many cases, an external triggering is required to initiate the measurement
process. This stimulus may be visual, auditory, tactile or direct electrical stimulation of
some part of the nervous system. This forms of the major components of the man –
instrumentation system.
4. Transducer: This is a device capable to converting the measured signal into a form of
energy interpretable and recording for further study and analysis.
20
21. Man - Instrumentation System:
5. Signal conditioning equipment: Most signals those are received from human body are
very light signals. Therefore these signals need amplification, modification so that they
can be interpreted properly.
6. Display Equipment: To be meaningful, the electrical output of the previous component
must be converted into a form that can be perceived by human senses. This requirement
makes the display equipment one of the vital components in man – instrumentation
system.
7. Recording, Data – processing and Transmission Equipment: for later and further
analysis of the measured variables, the data needs to be recorded and transmitted over
locations making this module a very vital composition of the system.
8. Control Device: this forms the final component of the system giving the operators the
flexibility of automatic control of the stimulus. This is achieved by incorporating a
feedback loop in the system.
21
22. Man - Instrumentation System: 22
Fig 2: Man – Instrument System
Fig 3: Basic Medical Instrumentation System
23. Common Medical Measurands:
The following table shows few of the measurement parameters generally used in
medical instrumentation system along with its operational range and methods
employed in attaining the same.
TABLE I: Measurement Parameters with range
23
Measurement Type Range Frequency Hz Method
Blood Flow 1 to 300 mL/s 0 to 20 EM or US
Blood Pressure 0 to 400 mm Hg 0 to 50 Cuff or Strain Gage
Cardiac Output 4 to 25 L/min 0 to 20 Fick, dye dilution
ECG 0.5 to 4 mV 0.05 to 150 Skin Electrodes
EEG 5 to 300 μV 0.5 to 150 Scalp Electrodes
EMG 0.1 to 5 mV 0 to 10000 Needle Electrodes
Electroretinography 0 to 900 μV 0 to 50 Contact Lens Electrodes
pH 3 to 13 pH units 0 to 1 pH Electrodes
pCO2 40 to 100 mm Hg 0 to 2 pCO2 Electrodes
pO2 30 to 100 mm Hg 0 to 2 PO2 Electrodes
Pneumotachography 0 to 600 L/min 0 to 40 Pneumatochometer
Respiratory Rate 2 to 50 breaths/min 0.1 to 10 Impedance
Body Temperature 32 °C to 40 °C 0 to 0.1 Thermistor
24. Recording Instruments
Following are the set of few instruments that found application as a recording
instrument.
1. Electrocardiography
2. Electromyography
3. Electro encephalography
4. Expirography
5. Phonocardiography
6. Plethysmography
7. Thermography
8. Tomography
9. Ultrasonography
10. Radio graph (X-ray)
24
25. Constraints in Medical Instrument Designs:
The signal to be measured inflicts limitations on how it should be acquired and
administered. Also the frequency range or signal strength is much lower than
conventional measuring parameters. .
Interference and cross talk between different organs and systems of the body may bring
down the accuracy and therefore diagnosis of the problem.
Placement of sensors is one major challenge in the scope of biomedical instruments as
perfect and most appropriate position is of primordial importance but it varies from
person to person.
Safety is the biggest concern in this field. The process of measurement must not
endanger the person on whom measurements are being made.
Operators’ expertise and constraints is a challenging aspect in this field.
Measurement variability is inherent at molecular, organ and body level. It is often
impossible to hold one variable constant while measuring the relationship between two
others.
25
26. References:
Introduction To Biomedical Equipment Technology; J. J. Carr, John Michael Brown
Basic Concepts of Medical Instrumentation: Application and Design; John G.
Webster
Biomedical Instrumentation And Measurements; Leslie, Cromwell.
Biomedical Instrumentation; R. S Khandpur and Raghbir Khandpur.
Introduction to Biomedical Instrumentation; Barbara Christe.
Biomedical Instrumentation; Dr. M Arumugam.
Introduction To Biomedical Instrumentation; Mandeep Singh
Principles of Medical Electronics and Biomedical Instrumentation; C. Raja Rao,
Sujoy K. Guha
http://www.healthline.com/health
http://www.derangedphysiology.com/main/core-topics-intensive-care/
https://www.scribd.com/doc/38873437/BIOMEDICAL-INSTRUMENTATION-TIC-801
26