CONFIDENTIAL and
PROPRIETARY
INOGEN ONE G3 OXYGEN CONCENTRATOR
TECHNICAL MANUAL
Slower breathing patients will receive larger boluses, and faster breathing patients will
receive smaller boluses.
This method of bolus volume determination is similar to what is experienced by a
patient using a continuous flow concentrator actual alveolar oxygen inspiration
is more closely linked to flow setting than to breathing rate.
In general, the Inogen One G3 delivers 14ml per bolus per flow setting at 15 breaths per
minute (210ml/min per flow setting). The following table summarizes the bolus
volumes delivered by the Inogen One OCD at 20C and Sea Level:
180 min nominal max min nominal max min nominal max
1.0 210 18.9 21.0 23.1 9.5 10.5 13.6 7.6 8.4 9.2
2.0 420 37.8 42.0 46.2 18.9 21.0 27.2 15.1 16.8 18.5
3.0 630 56.7 63.0 69.3 28.4 31.5 40.8 22.7 25.2 27.7
4.0 840 75.6 84.0 92.4 37.8 42.0 54.4 30.2 33.6 37.0
5.0 1050 94.5 105.0 115.5 47.3 52.5 67.9 37.8 42.0 46.2
10 BPM
(+/- 3ml or +/- 10%)
20 BPM
(+/- 3ml or +/- 10%)
25 BPM
(+/- 3ml or +/- 10%)
Bolus Volume is tuned to provide the correct bolus volume when delivered
through a nasal cannula such as the Salter Labs 1600Q. If bolus volumes are
measured without a cannula or with a different type of nasal cannula, bolus
volumes will vary from values stated in the table above.
2.4.2. Trigger sensitivity
The conserver will trigger when the negative pressure at the internal sensor reaches -
0.12 cm H
2
0 (+/- 20%). This low trigger sensitivity allows for breath detection of very
shallow breathing, but may also result in the occasional trigger due to motion of the
cannula or motion of the concentrator. The trigger sensitivity may vary
2.4.3. Flow Setting Selection Relative to Physician Prescription
Inogen has labeled each of the four settings to provide a
guideline
for matching the
setting of the device to the continuous flow prescription issued by the physician.
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