INVITRO INVESTIGATION OF THE FACTORS AFFECTING PULSE OXIMETRY

被引：18

作者：

DEKOCK, JP

TARASSENKO, L

机构：

[1] Medical Engineering Unit, Department of Engineering Science, Oxford University, Oxford

来源：

JOURNAL OF BIOMEDICAL ENGINEERING | 1991年 / 13卷 / 01期

关键词：

PULSE OXIMETRY; INVITRO MODEL; ARTERIAL OXYGEN SATURATION; MULTIPLE SCATTERING;

D O I：

10.1016/0141-5425(91)90046-A

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The effect of a number of physiological parameters on pulse oximetry accuracy has been investigated in an in vitro model. We have found that above 50% saturation, pulse oximeters will not be affected by variations in haematocrit, blood flow rate, tissue blood content and pulse amplitude. At low saturations, however, it is known that the accuracy of pulse oximeters decreases and our in vitro results suggest how this may be corrected.

引用

页码：61 / 66

页数：6