Tag: Biomedical sensors
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Key Features of a Disposable Blood Pressure Sensor
Disposable blood pressure sensors are made of clear plastic so that air bubbles are easily seen Saline flows from an intravenous (IV) bag through the clear IV tubing and the sensor to the patient. This is used to flush out blood out of the tip of the indwelling catheter to prevent clotting. A lever can…
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Types of Transducers used in Biomedical Measurement Applications
What is a transducer? A transducer is a device that converts one form of energy or variable into another form of energy or variable. A transducer is required to convert physiological variables into electrical signals which are easier to be further processed. We have a number of factors which are considered in choice of a…
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Blood Pressure Measurement
Introduction The blood pressure is considered a good indicator of the status of the cardiovascular system. The blood pressure can be measured by: Indirect methods of Blood Pressure Measurement Examples of indirect methods of blood pressure measurement include: Sphygmomanometer In this method the occlusive cuff is inflated until the pressure exerted by the cuff on…
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Blood Flow Measurement
Introduction Blood flow can easily be measured by using biomedical instruments. These biomedical instruments are based on several working principles namely: The magnetic and ultrasound blood flow meters actually measure the velocity of the blood stream. A transducer is used that envelope an excised blood vessel to measure the mean velocity of the blood stream.…