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3101126 Rev A Vapotherm Oxygen Assist Module Instructions for Use
The Vapotherm Oxygen Assist Module is designed to work with the Precision Flow system to manage
oxygen delivery based on patient clinical need as reflected in their SpO
2
reading. This automatic
control system uses a proprietary feedback control algorithm to track a patient’s oxygen saturation
and automatically adjust the oxygen concentration delivered through their respiratory support.
The Vapotherm Oxygen Assist Module uses proven pulse oximetry and Precision Flow gas delivery
technologies and a proprietary algorithm that increases or decreases the %O
2
setting in an effort to
maintain a target SpO
2
value. The clinician sets the target SpO
2
and the system uses the algorithm
that combines analysis of real-time measurements and trending to choose the appropriate %O
2
delivery. The use of smart averaging and hysteresis algorithms by the Masimo SET™ SpO
2
monitor
protects the system from artifacts that could cause too rapid cycling of O
2
delivery. Oxygen Assist
Module is designed for use with the Precision Flow System, which controls the %O
2
delivery based on
a setting sent from Oxygen Assist Module or being set on the Precision Flow itself manually.
The Oxygen Assist Module communicates with the Precision Flow through the serial interface port
located on the back of the Precision Flow unit.
NOTE:
Some clinicians may find the peak wavelengths and radiant power of the light emitting diodes
employed in the SpO
2
probe useful. Masimo’s sensors use Red and Infrared light emitting diodes.
These diodes emit at 660nm and 905nm respectively and have a radiant power of less than 15mW.
Section 2 Principles of Operation
Vapotherm Precision Flow
Vapotherm Oxygen
Assist Module
