Finger Pulse Oximeter Diagram
The fingertip pulse oximeter is designed to be used in specified electromag netic environment.
Finger pulse oximeter diagram. This may occur if the person is cold has very low blood pressure or is having a heart attack. However if the probe is of the wrong size or has not being applied properly some of the light instead of going through the artery goes by the side of the artery shunting lower finger in image below. Users of the fingertip pulse oximeter must use it in the. This device is especially important for people who need to monitor these parameters due to certain health conditions such as asthma or congestive heart failure.
The pulse oximeter is implemented using the freescale medical oriented microcontroller kinetis k53. This document is intended to be used by biomedical. Pulse oximeters are less accurate if there is poor blood flow to the finger. Carbon monoxide due to smoke inhalation carbon monoxide poisoning or heavy cigarette smoking results in falsely high pulse oximeter readings.
The pulse oximeter operates best when all the light passes through arterial blood as shown in the upper finger in the image below. The pulse oximeter is a small clip like device that attaches to a body part like toes or an earlobe. It s most commonly put on a finger and it s often used in a critical care setting like. Pulse oximeter using freescale products.