Cooperation project to reduce movement artifacts and interfering factors in the PPG measurement of vital parameters<\/h3><\/div>![\"The](\"https:\/\/www.cosinuss.com\/wp-content\/uploads\/2023\/10\/unbenannt-5782-Kopie.jpg\" "\\"unbenannt-5782")
<\/span><\/div><\/div>cosinuss\u00b0 and Landshut University of Applied Sciences (HAW)<\/a> have teamed up for a new cooperation project to tackle the challenges of optical measurement of vital parameters. The aim is to develop an earable that enables reliable measurements in the ear and is particularly robust against movement artifacts and other interference factors. For the first time, this in-ear sensor should be able to continuously monitor a large number of vital parameters despite movement. With the introduction of such a system, the project partners are aiming to fundamentally change the clinical monitoring of patients – especially those with restricted blood flow.<\/p>\n<\/div><\/div><\/div><\/div><\/div>The ear as an ideal place to measure vital signs<\/h2><\/div>Photoplethysmography (PPG) – a non-invasive, optical measurement method for recording blood circulation – can be used to determine a large number of vital parameters. However, PPG measurement is extremely sensitive to movement artifacts and stray light. The sensor must therefore be positioned as close as possible to the surface of the skin. However, vital parameter measurements on the extremities, as is usually the case with smartwatches, are subject to strong movements and other influences such as different ambient temperatures and incidence of light. It is also difficult or even impossible to measure the extremities if the patient has restricted blood flow. This often occurs, for example, in emergency patients who are in shock. The external auditory canal, on the other hand, is a suitable place to measure vital signs. This means that the already good blood flow to the ear canal tissue remains relatively stable even if the blood flow in the rest of the body changes. Vital parameter measurements in the ear can therefore be more accurate and reliable than in other parts of the body.<\/p>\n
In everyday clinical practice, blood pressure<\/a> is usually measured using pressure cuffs on the arm. This traditional measurement method only provides punctual data and, like the PPG measurement, can also be influenced by various factors, including the position of the limb. By combining blood pressure data with other vital parameters<\/a> in a small, lightweight in-ear sensor, the diagnosis and monitoring of patients could be significantly improved.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
<\/span><\/div>cosinuss\u00b0 and Landshut University of Applied Sciences (HAW)<\/a> have teamed up for a new cooperation project to tackle the challenges of optical measurement of vital parameters. The aim is to develop an earable that enables reliable measurements in the ear and is particularly robust against movement artifacts and other interference factors. For the first time, this in-ear sensor should be able to continuously monitor a large number of vital parameters despite movement. With the introduction of such a system, the project partners are aiming to fundamentally change the clinical monitoring of patients – especially those with restricted blood flow.<\/p>\n<\/div><\/div><\/div><\/div><\/div> Photoplethysmography (PPG) – a non-invasive, optical measurement method for recording blood circulation – can be used to determine a large number of vital parameters. However, PPG measurement is extremely sensitive to movement artifacts and stray light. The sensor must therefore be positioned as close as possible to the surface of the skin. However, vital parameter measurements on the extremities, as is usually the case with smartwatches, are subject to strong movements and other influences such as different ambient temperatures and incidence of light. It is also difficult or even impossible to measure the extremities if the patient has restricted blood flow. This often occurs, for example, in emergency patients who are in shock. The external auditory canal, on the other hand, is a suitable place to measure vital signs. This means that the already good blood flow to the ear canal tissue remains relatively stable even if the blood flow in the rest of the body changes. Vital parameter measurements in the ear can therefore be more accurate and reliable than in other parts of the body.<\/p>\n In everyday clinical practice, blood pressure<\/a> is usually measured using pressure cuffs on the arm. This traditional measurement method only provides punctual data and, like the PPG measurement, can also be influenced by various factors, including the position of the limb. By combining blood pressure data with other vital parameters<\/a> in a small, lightweight in-ear sensor, the diagnosis and monitoring of patients could be significantly improved.<\/p>\n<\/div><\/div><\/div><\/div><\/div>The ear as an ideal place to measure vital signs<\/h2><\/div>
![\"cosinuss](\"https:\/\/www.cosinuss.com\/wp-content\/uploads\/2024\/05\/Cosinuss_Hearmotion_IMG_8942.jpg\" "\\"Cosinuss_Hearmotion_IMG_8942\\"")
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