経皮的動脈血酸素飽和度ＳｐＯ２測定の新たなるアプローチ―耳朶センサの試み―:－耳朶センサの試み－
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概要
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We studied the utility and drawbacks of the earlobe probe sensor on the percutaneous arterial oxygen saturation (SpO<SUB>2</SUB>) measurement. The SpO<SUB>2</SUB> from the earlobe, forehead and finger sensor were measured simultaneously, and then changes of SpO<SUB>2</SUB> readings induced by medical interferences and influence by the sensor attachment were compared among three types of sensor. The SpO<SUB>2</SUB> from the earlobe sensor responded to the rapid change of patient clinical condition as well as from the forehead and finger sensor. The pulse wave signal from the earlobe sensor was more stable compared to those from forehead and finger sensor, but the time to display SpO<SUB>2</SUB> readings after the earlobe sensor attachment was similar to the forehead sensor and it took longer than that in case of the finger sensor attachment. Some cases were difficult to measure SpO<SUB>2</SUB> because of extremely thin earlobe and edema of earlobe. The long-term attachment of the earlobe sensor did not leave any surface imprint on the patient skin that is often found with the use of forehead and finger sensor. Also no patient had removed the earlobe sensor on a voluntary basis. While the SpO<SUB>2</SUB> measurement with the earlobe sensor may be affected by several factors such as the earlobe shape and the peripheral circulation, it is the least painful for the patient. The active utilization of the earlobe sensor in clinical practice is promising as a new approach of the SpO<SUB>2</SUB> measurement.
- 日本医療機器学会の論文
日本医療機器学会 | 論文
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