Precision Medical PM4150 EasyPulse Portable Oxygen Concentrator (POC) - Manual (Page 4)

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Theory of Operation
The EasyPulsePOC is intended to provide supplemental oxygen to the ambulatory oxygen patient in the smallest lightest
package possible. Utilizing Precision Medical, Inc.’s patented Oxygen Conserving Technology, the EasyPulsePOC is a
state of the art device, designed to be versatile and reliable.
This oxygen conserving technology delivers a true “pulse” of oxygen within the first 1/3 of the patient’s inspiration and is
unique in several additional ways. A true “pulse” is defined by a high peak flow (4 to 10 LPM) for a very short duration of
time (0.2 to 0.4 seconds). It also controls the delivered minute volume which remains consistent between 15 and 35 BPM.
The total oxygen volume (delivered minute volume) the patient receives is always the same, as the patient’s breath rate
decreases the pulse volume increases and conversely when breath rate increases.
The EasyPulse POC senses the patient’s Inspiratory effort by means of a micro sensor. The sensor signals a micro valve
to open for a specific duration based on setting, patient breathe rate and altitude delivering the bolus of oxygen to the
patient. This all happens in less than 0.5 seconds. The delivered minute volume is controlled by the setting, the micro
valve timing and the patient’s breath rate.