Pulse oximetry
Convenient.Efficient.AccuratE.
What is Pulse Oximetry?
A pulse oximeter allows athletes and patients to quickly monitor oxygen levels in their body. And it only takes a couple seconds to take a measurement.
A pulse oximeter is a device that non-invasively measures and monitors the oxygen saturation levels of a patient. Since the device is non-invasive, it has the ability to give continuous readings of oxygen saturation levels without drawing blood. It also monitors the heart rate. It is convenient for infants, the elderly, or anyone at risk of experiencing respiratory or cardiac problems. Additionally, a pulse oximeter that constantly updates the oxygen saturation levels is beneficial when a person is in a setting where their oxygen levels can fluctuate, such as pilots at high altitudes or those in emergency medical procedures. In these situations, the pulse oximeter can calculate the amount of supplemental oxygen necessary or if it is necessary at all.
Our pulse oximeter consists of a probe containing a red and an infrared light and a sensor to collect data while the user places their finger in the probe. From the sensor, the signal gets amplified and filtered before reaching the analog to digital converter (ADC). The ADC's properties such as sampling frequency must account for all types of signals from the sensor. The digital to analog convertor's (DAC) purpose is to adjust brightness of the LEDs to get accurate readings. The processor is a device that runs the algorithms to determine blood oxygen saturation levels. It also selects the values to be displayed and when to display a warning. The display can also have a color or sound based warning system.
