Spirometry is a medical procedure used to measure lung functions, specifically the volume and speed of the air one breathes in and out. It is one of pulmonary function tests and it is also referred to as measuring of breath. Spirometry is performed using pieces of equipment called spirometers. There are many version and models of these apparatus in the market, giving a buyer a wide range of options to choose from.
The function of this apparatus is determining abnormalities in ventilation patterns and air movements out and into the lungs. The devices detect two forms of abnormalities in ventilation pattern. The two abnormalities in ventilation pattern are restrictive and obstructive. Various models employ different measurement techniques to accomplish their task. Some of those methods are, use of water gauges, pressure or ultrasonic transducers.
These devices keep improving with the ever improving technology. Currently several models are in application in various sectors around the world. Among the main models are whole body plethymograph, fully electronic, tilt compensated, pneumotachometer, windmill-type, incentive, and peak flow type model. The most accurate model of all the models is whole body plethymograph, which gives high accuracy in values recorded. The high accuracy is partly because patients are enclosed in rooms during the exercise.
Pneumotachometers gauge rate or flow of air by use of fine meshes. Pressure of breathed air is sensed and measured as the air flows over the fine meshes. This allows for its rate of flow to be measured too. As the procedure continues, the patients can inhale fresh air. This does not exist in other models.
Fully electronic versions are an improvement of the other models because they lack fine meshes and/or moving parts. In these models, the rate of air flow is gauged using techniques such as ultrasonic transudcers and pressure difference. The accuracy is highly improved because there is no resistance or friction due to lack of moving parts. Hygiene is also high because of the disposable air flow channels built into them.
Incentive models are the most commonly used models in most settings. They are meant to improve the breathing of a patient over a long time of usage. They are normally placed on a bench or a table next to a bed. The patient should inhale and exhale through the mouthpiece for a given number of times every hour as per the instructions of the doctor. The calibrations on the device indicate any improvements the patient is making over time.
Windmill-type version is used to measure forced vital capacity without using water. It is lighter and more portable in comparison to water-tank model. The measurements in this device are broad running from 1000 to 7000 ml. The presence of rotating discs in the apparatus requires it to be held in a horizontal position when recording measurements. Tilt-compensated type has 3D sensing mechanics that allow patients to lean backwards or forwards while in use.
The cooperation the patient gives the doctor highly determines how successful the testing process can be. Normally values obtained from a single test are not used because they contain errors. The procedure is therefore repeated at least three times to obtain final values. Little kids who cannot understand instructions cannot also be tested because of the same reason.
The function of this apparatus is determining abnormalities in ventilation patterns and air movements out and into the lungs. The devices detect two forms of abnormalities in ventilation pattern. The two abnormalities in ventilation pattern are restrictive and obstructive. Various models employ different measurement techniques to accomplish their task. Some of those methods are, use of water gauges, pressure or ultrasonic transducers.
These devices keep improving with the ever improving technology. Currently several models are in application in various sectors around the world. Among the main models are whole body plethymograph, fully electronic, tilt compensated, pneumotachometer, windmill-type, incentive, and peak flow type model. The most accurate model of all the models is whole body plethymograph, which gives high accuracy in values recorded. The high accuracy is partly because patients are enclosed in rooms during the exercise.
Pneumotachometers gauge rate or flow of air by use of fine meshes. Pressure of breathed air is sensed and measured as the air flows over the fine meshes. This allows for its rate of flow to be measured too. As the procedure continues, the patients can inhale fresh air. This does not exist in other models.
Fully electronic versions are an improvement of the other models because they lack fine meshes and/or moving parts. In these models, the rate of air flow is gauged using techniques such as ultrasonic transudcers and pressure difference. The accuracy is highly improved because there is no resistance or friction due to lack of moving parts. Hygiene is also high because of the disposable air flow channels built into them.
Incentive models are the most commonly used models in most settings. They are meant to improve the breathing of a patient over a long time of usage. They are normally placed on a bench or a table next to a bed. The patient should inhale and exhale through the mouthpiece for a given number of times every hour as per the instructions of the doctor. The calibrations on the device indicate any improvements the patient is making over time.
Windmill-type version is used to measure forced vital capacity without using water. It is lighter and more portable in comparison to water-tank model. The measurements in this device are broad running from 1000 to 7000 ml. The presence of rotating discs in the apparatus requires it to be held in a horizontal position when recording measurements. Tilt-compensated type has 3D sensing mechanics that allow patients to lean backwards or forwards while in use.
The cooperation the patient gives the doctor highly determines how successful the testing process can be. Normally values obtained from a single test are not used because they contain errors. The procedure is therefore repeated at least three times to obtain final values. Little kids who cannot understand instructions cannot also be tested because of the same reason.
About the Author:
When you are looking for information about spirometers, pay a visit to the web pages online here today. You can see details at http://www.henanmedical.com now.
Aucun commentaire:
Enregistrer un commentaire