COSMED - Lung Volumes Module

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Lung Volumes Module: Functional Residual Capacity (FRC) via multi-breath Nitrogen Wash-out and single-breath 100% O2 techniques Lung distribution analysis (LCI, AMDN) Affordable alternative to body plethysmography for lung volume measurement Simplified ordinary maintenance and calibration procedures

Tests

Multi-Breath Nitrogen Wash-out
Single-Breath 100 % O2 (Closing Volume)

Parameters

Multi-Breath Nitrogen Wash-out
- Real time:
CFRC, Vt, RF, IV, FetN2, Vda, CEV, FetO2, FetCO2, Ti, Te, Ttot, Ti/Ttot
- After the test:
FRC, Vtot, Wash-out time, VDA, FetN2_fin, RV, TLC, RV/TLC, ERV, IC…

Single-Breath 100 % O2 (Closing Volume)
CV, VC(c.v.), V_I, V_II, V_III, FetN2_iniz, Delta N2%, m, q, R^2, CV/VC%

Analysers

	O2	CO2
Type:	Paramagnetic	Infrared digital (NDIR)
Range:	0-100%	0-10%
Accuracy:	± 0.1 %	± 0.1 %
Response time:	120 ms	100 ms
Warm-up time:	5 min	10 min

Standard Packaging

- Breathing Valve
- SW upgrade and activation code

The LV test foresees that patient breathes pure oxygen for almost the entire duration of the test. User is therefore required to procure a gas cylinder filled with pure O2. An additional cylinder with known O2 and CO2 gas concentration is required for the analyzer calibration.
COSMED recommends the use of cylinders with the following gas composition:

1) FRC test cylinder (O2 99%)
2) Calibration cylinder (5% CO2 - 16% O2 - N2 balance)

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