Podcast
Questions and Answers
Which type of sensor involves direct measurement of a physiological parameter?
Which type of sensor involves direct measurement of a physiological parameter?
- Ultrasound color flow imaging
- Direct recording of action potential in nerve fibers (correct)
- ECG recording at the body surface
- An imaging system measuring internal deformations
What is an example of a noninvasive actuator?
What is an example of a noninvasive actuator?
- Strain gauge sensor attached to muscle fiber
- Automated insulin delivery pump
- Direct electrical recording systems
- High intensity focused ultrasound (HIFU) (correct)
Which biomedical instrument is primarily used for diagnostic purposes?
Which biomedical instrument is primarily used for diagnostic purposes?
- Medical ventilator
- Infusion pump
- MRI machine (correct)
- Automated blood analyzer
What type of equipment is used to measure a patient's vital signs?
What type of equipment is used to measure a patient's vital signs?
Which characteristic describes static instruments?
Which characteristic describes static instruments?
What is the primary role of a sensor or transducer in a biomedical instrumentation system?
What is the primary role of a sensor or transducer in a biomedical instrumentation system?
What does signal conditioning in a biomedical instrumentation system primarily enhance?
What does signal conditioning in a biomedical instrumentation system primarily enhance?
Which component of a biomedical instrumentation system directly measures physical quantities from the human body?
Which component of a biomedical instrumentation system directly measures physical quantities from the human body?
What type of output does the display component of a biomedical instrumentation system provide?
What type of output does the display component of a biomedical instrumentation system provide?
Which of the following is NOT a part of the auxiliary elements in a biomedical instrumentation system?
Which of the following is NOT a part of the auxiliary elements in a biomedical instrumentation system?
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Study Notes
Introduction to Biomedical Instrumentation
- Biomedical instrumentation applications include diagnosis, treatment, and prevention of diseases.
- It involves the application of knowledge and technologies to solve problems related to living biological systems.
Generalized Medical Instrumentation System
- Every system involves a sequence of components.
- The primary flow of information is from left to right.
- The source of signals is living tissue or energy applied to living tissue.
- This system differs from conventional instrumentation systems due to its focus on living organisms.
Components of Biomedical Instrumentation System
- Measured: Refers to the physical quantity measured by the instrument.
- Sensor / Transducer: Converts one form of energy to another, typically electrical energy.
- Signal Conditioner: Improves the sensitivity of instruments by converting signals from transducers into electrical values.
- Display: Provides a representation of the measured parameter using visual, auditory, or tactile senses.
- Auxiliary Elements: Assist in calibration, control, feedback, storage, and transmission of data.
Types of Biomedical Instrumentation Systems
- Direct/Indirect: Directly measures a physiological parameter or measures a related parameter.
- Invasive/Noninvasive: Involves physical contact with the body or uses imaging techniques without contact.
- Contact/Remote: Involves physical contact with the body or uses imaging techniques without contact.
- Sense/Actuate: Detects biological parameters or delivers external agents to control them.
- Dynamic/Static: Measures temporal averages or provides real-time measurements of physiological parameters.
Types of Biomedical Instruments
- Diagnostic Equipment: Helps in diagnosis using machines like ultrasound, MRI, CT scanners, and x-ray machines.
- Therapeutic Equipment: Includes infusion pumps and medical lasers.
- Life Support Equipment: Maintains patient body functions using medical ventilators, anesthetic machines, heart-lung machines, and dialysis machines.
- Medical Monitors: Measure patient vital signs, including ECG, EEG, blood pressure, and dissolved gases in the blood.
- Medical Laboratory Equipment: Automates or helps analyze blood, urine, and genes.
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