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4.3.2 RAINOUT CHARACTERIZATION KIT
The SCIREQ rain-out characterization kit includes a drying tube and connective tubing as well as
an instruction card. The rainout characterization kit is required when characterizing the
nebulizer in the
flexiWare
software. To ensure accuracy during the nebulizer characterization, it
is important to replace the drying tube once it has turned pink.
4.3.3 TEST LOAD KITS
The SCIREQ Test Load Kit includes two custom-machined test loads to ensure consistency in
outcomes measured by the
flexiVent
. One test load will produce respiratory system resistance
(Rrs) outcomes similar to a healthy subject while the other test load produces outcomes similar
to a constricted lung.
4.4 HARDWARE EXTENSION FOR NEGATIVE PRESSURE FORCED
EXPIRATIONS (NPFE)
The SCIREQ hardware extension for negative pressure forced expirations consists of a
negative pressure reservoir and valves that integrate into the configuration of the
flexiVent
FX.
Use of the extension allows you to measure flows (e.g. peak expiratory flow) and volumes (e.g.
forced expired volume at a specific time point, forced vital capacity) generated during a forced
expiration. The computer-controlled NPFE perturbation may be interspersed with other
flexiVent
measurements, which allows for the most comprehensive mechanics assessment
available in a single experiment with a single subject.
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