| 摘要 |
<p>An optical probe is applied to a digit, such as, for example, a thumb, such that the optical probe includes an emitter and a detector on opposing sides of the digit perpendicular to the side having the nail portion in a manner that light travels through the finger in a plane parallel to the nail. Such side application of the optical probe advantageously provides a reduced change in optical path length during motion and an increased volume through which perfusion can be measured, resulting in the detector producing a signal having an increased signal-to-noise ratio.</p> |
