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Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure
Reduced blood flow due to obstruction is in most cases a primary factor in pressure ulcer formation and creation of bedsores. The aim of this study is to design and manufacture a care system for tissue under pressure, based on variations in blood flow at different depths of tissue. In the manufactur...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications & Media Pvt Ltd
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3632042/ https://www.ncbi.nlm.nih.gov/pubmed/23626948 |
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author | Hadi, Akbari Amin, Younessi Heravi Mohammad |
author_facet | Hadi, Akbari Amin, Younessi Heravi Mohammad |
author_sort | Hadi, Akbari |
collection | PubMed |
description | Reduced blood flow due to obstruction is in most cases a primary factor in pressure ulcer formation and creation of bedsores. The aim of this study is to design and manufacture a care system for tissue under pressure, based on variations in blood flow at different depths of tissue. In the manufacture of the system two infrared light transmitters and receivers were located between 5 and 10 mm depth to measure the flow of blood at different in the under- pressure heel tissue. In addition, blood flow was evaluated in an unloaded and loaded condition, with 30 mmHg and 60.0 mmHg. A total of 15 people participated with a mean age of 50. Of these 15; 9 (60%) were men and 6 (40%) were women. Primary measurement results showed different individual differences in variation of blood flow in the tissue. To study signal amplitude changes significantly influenced by external pressure the PPG, P-value was measured. It was noted that there were significant changes in PPG signal amplitude during loading both pressures of 30 and 60 mmHg. Further development of this system would be possible with the use of a more flexible probe and by using a stronger optical receiver and transmitter to access more depth. |
format | Online Article Text |
id | pubmed-3632042 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-36320422013-04-26 Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure Hadi, Akbari Amin, Younessi Heravi Mohammad J Med Signals Sens Methodology Article/Short Report Reduced blood flow due to obstruction is in most cases a primary factor in pressure ulcer formation and creation of bedsores. The aim of this study is to design and manufacture a care system for tissue under pressure, based on variations in blood flow at different depths of tissue. In the manufacture of the system two infrared light transmitters and receivers were located between 5 and 10 mm depth to measure the flow of blood at different in the under- pressure heel tissue. In addition, blood flow was evaluated in an unloaded and loaded condition, with 30 mmHg and 60.0 mmHg. A total of 15 people participated with a mean age of 50. Of these 15; 9 (60%) were men and 6 (40%) were women. Primary measurement results showed different individual differences in variation of blood flow in the tissue. To study signal amplitude changes significantly influenced by external pressure the PPG, P-value was measured. It was noted that there were significant changes in PPG signal amplitude during loading both pressures of 30 and 60 mmHg. Further development of this system would be possible with the use of a more flexible probe and by using a stronger optical receiver and transmitter to access more depth. Medknow Publications & Media Pvt Ltd 2012 /pmc/articles/PMC3632042/ /pubmed/23626948 Text en Copyright: © Journal of Medical Signals and Sensors http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Methodology Article/Short Report Hadi, Akbari Amin, Younessi Heravi Mohammad Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title | Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title_full | Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title_fullStr | Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title_full_unstemmed | Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title_short | Designing and Constructing an Optical Monitoring System of Blood Supply to Tissues under Pressure |
title_sort | designing and constructing an optical monitoring system of blood supply to tissues under pressure |
topic | Methodology Article/Short Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3632042/ https://www.ncbi.nlm.nih.gov/pubmed/23626948 |
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