The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.

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The patient is being ventilated with 2 types of breaths.
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The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i.
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A ventilator and TTL test lung were used to simulate spontaneous breathing. A ventilator and TTL test lung were used to simulate spontaneous breathing.
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The third breath has a negative deflection (ie, below PEEP) at the end of the mechanical breath (arrow A) associated with a flow increase (arrow B), indicating.
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Simulated screenshot of flow starvation in volume control continuous mandatory ventilation. Simulated screenshot of flow starvation in volume control continuous.
Characteristics of a pressure-supported breath.
The peak flows (60 L/min) and flow patterns are the same for all the breaths. The peak flows (60 L/min) and flow patterns are the same for all the breaths.
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Representative tidal volume (VT) and breathing frequency (f) patterns of subjects with COPD and normal subjects during cardiopulmonary exercise testing.
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Progression of spontaneous breathing trials administered during inspiratory muscle strength training study interventions. Progression of spontaneous breathing.
Boundary graph for prescription flow (Qp) and supply flow (Qs).
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Basic setup for high-flow nasal cannula oxygen delivery.
Percent of extremely-low-birth-weight (ELBW) babies alive and off mechanical ventilation at 7 days, and median days on mechanical ventilation for ELBW.
Minute-by-minute means of breathing variables during the spontaneous breathing trial for the groups of subjects with trial success (n = 32) and failure.
Representative waveforms for each of the devices tested from which the oscillatory f was counted. Representative waveforms for each of the devices tested.
Presentation transcript:

The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i ventilator. The changes in peak flow and inspiratory time between a minimum rise time (first 2 breaths) and a maximum rise time (last 2 breaths), with the Servo-i ventilator. The cycling criteria was set to minimum for all 4 breaths. The peak flow is lower and the inspiratory time is longer in the first 2 breaths, compared to the last 2 breaths. Joshua F Gonzales et al. Respir Care 2013;58:465-473 (c) 2012 by Daedalus Enterprises, Inc.