Appendix 1.10 Description of the intelligent adaptive ventilation iSV
App.1-16
Appendix 1.10.8 General description of the iSV pattern mode adjustment algorithm
Throughout the iSV operation Otis equation is solved for each breathing cycle. The findings are
limited by the boundaries of the safe ventilation. Calculated data are necessary both for hard-
ware and spontaneous breaths.
Graphically the automatic transition from the mandatory ventilation to supporting one looks as
follows:
Figure App. 1.10 – Graphical representation of the automatic transition from mandatory ventilation
to assisted
If the patient in iSV mode has no spontaneous breathing, the device carries out mandatory ven-
tilation. The parameters of breaths are calculated in real time by the Otis equation. Hardware
breaths are performed in the double control mode.
The second part of the mode reminds CPAP+PS, but the volume of supporting breaths is regu-
lated automatically through the pressure. If the spontaneous breath occurs, pressure support
PS is provided.
At the moments of spontaneous respiratory activity, spontaneous breaths are notable for their
uneven depth and lability of their frequency. Control of the hardware and supporting breaths is
made by different algorithms.
The bottom limit for the mandatory breaths is 5 cmH
2
O. The bottom limit for the PS breaths is
also 5 cmH
2
O. This pressure is required to compensate the resistance of the endotracheal tube,
breathing circuit and filters.
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Страница 25: ...2 3 Front panel 2 9 2 3 Front panel Figure 2 1 Front view of the electronic unit ...
Страница 124: ...4 21 Open valve function 4 76 For your notes ...
Страница 158: ...6 11 Check and calibration of mainstream CO2 sensor 6 8 For your notes ...
Страница 160: ...7 Troubleshooting 7 2 For your notes ...
Страница 162: ...8 Transportation 9 Storage 10 Disposal 10 2 For your notes ...
Страница 166: ...13 commission date mark 12 2 For your notes ...
Страница 168: ...14 Maintenance and repair data 14 2 For your notes ...
Страница 196: ...Appendix 2 9 Ideal body weight of the patient IBW App 2 10 For your notes ...
Страница 200: ...Appendix 3 Electromagnetic environment App 3 4 For your notes ...
Страница 201: ...Appendix 4 Pneumatic scheme of ventilator App 4 1 APPENDIX 4 PNEUMATIC SCHEME OF VENTILATOR ...
Страница 202: ...Appendix 4 Pneumatic scheme of ventilator App 4 2 For your notes ...