Hornberger Christoph, Matz H, Konecny E, Frankenberger H, Bonk R, Avgerinos J, Benekos K, Valais J, Ikiades A, Gil-Rodriguez J, Wouters P, Meyfroidt G, Ponz L, Gehring H
Department of Biomedical Engineering, Med. Univ. Lübeck, Germany.
Anesth Analg. 2002 Jan;94(1 Suppl):S8-12.
The performance of a new calibrator for pulse oximeters is tested with five pulse oximeters from different manufacturers. The calibrator is based on time resolved transmission spectra of human fingers. Finger spectra with different arterial oxygen saturation can be selected to simulate real patients. The results obtained with this calibration device are compared with the results of conventional calibration procedures with volunteers. Beside accuracy tests the suitability for artifact simulation with the new device is discussed. The response of the five tested pulse oximeters is in good agreement with the response of the pulse oximeters connected to real patients. A test procedure for pulse oximeters similar to the conventional desaturation practice is possible; some of the typical artifacts pulse oximetry has to cope with can be simulated easily.
一种新型脉搏血氧仪校准仪的性能通过来自不同制造商的五台脉搏血氧仪进行测试。该校准仪基于人体手指的时间分辨透射光谱。可以选择具有不同动脉血氧饱和度的手指光谱来模拟真实患者。将使用此校准设备获得的结果与志愿者进行传统校准程序的结果进行比较。除了准确性测试外，还讨论了新设备在模拟伪像方面的适用性。五台被测脉搏血氧仪的响应与连接到真实患者的脉搏血氧仪的响应高度一致。一种类似于传统去饱和操作的脉搏血氧仪测试程序是可行的；脉搏血氧测定法必须应对的一些典型伪像可以轻松模拟。
