書誌事項
- タイトル別名
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- Effect of Lateral Displacement of the Sensor on SpO<sub>2</sub> Value
- センサの横ずれがSpO₂値へ与える影響
- センサ ノ ヨコズレ ガ SpO ₂ アタイ エ アタエル エイキョウ
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A pulse oximeter measures the percutaneous arterial oxygen saturation (SpO2) by the absorption ratio of two different wavelengths of light that pass through the tissue. Sensor misalignment and incorrect position can cause inaccurate results. Especially in the case of neonates and infants, finger size or sensor location can create a gap between the sensor and finger. This gap may cause light leakage that does not pass through the tissue (“shunted light”). This might be one cause of inaccurate SpO2 measurement. We investigated the effect of shunted light on SpO2 value while displacing the sensor laterally from the center to the outside of the finger. We found that lateral sensor displacement caused shunted light which degrades measurement accuracy. We also found that if the LED or photodiode is firmly attached to the finger and the shunted light is shielded, there were very few errors in the measurement value. We think that sensors which shield the shunted light and fit the finger firmly will improve measurement accuracy in pulse oximetry.
収録刊行物
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- 生体医工学
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生体医工学 50 (6), 651-657, 2012
公益社団法人 日本生体医工学会
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詳細情報 詳細情報について
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- CRID
- 1390282680245047040
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- NII論文ID
- 130004947552
- 40019607477
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- NII書誌ID
- AA11633569
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- ISSN
- 18814379
- 1347443X
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- NDL書誌ID
- 024335624
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可