Method of testing the accuracy of pulse oximeters & device...

Details Method of testing the accuracy of pulse oximeters & device... Method of testing the accuracy of pulse oximeters & device...

G - Physics

01

N

G01N 33/487 (2006.01)

Patent

CA 2041177

Device and method for testing the accuracy of pulse oximeters used in estimating arterial blood saturation levels. The device is for use in enabling a pulse oximeter to measure the absorption of the radiation emitted by said oximeter by a pulsatile liquid contained within said device, which device comprises said liquid, a resiliently flexible displaceable member adjacent said liquid and means for operably effecting rhythmic movement of said displaceable member with a steady frequency and amplitude so as to effect a change in the depth of a volume of said liquid in the direction acted upon by said radiation such that said liquid is operably provided in pulsatile form while under the influence of said radiation. The device provides a cheap and convenient method of testing the accuracy of the pulse oximeters.

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