VPAP Technology - Respshop.com › manuals › S9 VPAP Technology...Combine the S9 VPAP with...
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VPAP ™ Technology Quiet comfort. More compliance. Trigger and cycle Under normal conditions, the VPAP device triggers (initiates IPAP) and cycles (terminates IPAP and changes to EPAP) as it senses the change in patient flow. Patient breath detection is further enhanced by Vsync, ResMed’s automatic leak management feature. Patients, as individuals, have different conditions and different therapy needs. Some require additional comfort measures to give them the best opportunity for long-term compliance. Some have unique lung and chest- wall conditions creating breath synchronization challenges that require ventilatory assistance. VPAP ™ devices offer the ultimate in quiet, comfortable bilevel therapy—proven technologies combined with maximum clinical control—to help you meet the unique needs of even your most challenging patients. Vsync ™ for reliable pressure delivery Unique to ResMed’s VPAP devices, Vsync ™ monitors and compensates for leak by continuously and automatically adjusting the baseline flow. This enables reliable triggering and cycling while maintaining the set pressures. Cycle sensitivity settings Patient Flow Very low Low Medium High Very high Very low Low Medium High Very high Trigger sensitivity settings Leak onset New base flow Base flow Patient flow Vsync responds Patients with very unique conditions may further benefit from adjustable trigger/cycle sensitivity settings.
Transcript of VPAP Technology - Respshop.com › manuals › S9 VPAP Technology...Combine the S9 VPAP with...
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VPAP™ TechnologyQuiet comfort. More compliance.
Trigger and cycle
Under normal conditions, the VPAP device triggers (initiates IPAP) and cycles (terminates IPAP and changes to EPAP) as it senses the change in patient flow. Patient breath detection is further enhanced by Vsync, ResMed’s automatic leak management feature.
Patients, as individuals, have different conditions and different therapy needs. Some require additional comfort measures to give them the best opportunity for long-term compliance. Some have unique lung and chest-wall conditions creating breath synchronization challenges that require ventilatory assistance. VPAP™ devices offer the ultimate in quiet, comfortable bilevel therapy—proven technologies combined with maximum clinical control—to help you meet the unique needs of even your most challenging patients.
Vsync™ for reliable pressure delivery
Unique to ResMed’s VPAP devices, Vsync™ monitors and compensates for leak by continuously and automatically adjusting the baseline flow. This enables reliable triggering and cycling while maintaining the set pressures.
Cycle sensitivity settings
Patient Flow
Very lowLowMediumHighVery high
Very lowLowMediumHighVery high
Trigger sensitivity settings
Leak onset
New base flow
Base flow
Patient flow
Vsync responds
Patients with very unique conditions may further benefit from adjustable trigger/cycle sensitivity settings.
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Global leaders in sleep and respiratory medicine www.resmed.com
ResMed Corp San Diego, CA, USA +1 858 836 5000 or 1 800 424 0737 (toll free). ResMed Ltd Bella Vista, NSW, Australia +61 (2) 8884 1000 or 1 800 658 189 (toll free). See ResMed.com for other ResMed locations worldwide. TiControl and Vsync are trademarks of ResMed Ltd. S9 and VPAP are trademarks of ResMed Ltd and are registered in the U.S. Patent and Trademark Office. ©2011 ResMed. Specifications may change without notice. 1014528/1 11 03
Notes:
Factory default values are Ti Max = 2.0 seconds and Ti Min = 0.3 seconds.
I:E = 1:1 – Ti Min prevents the premature cycling to EPAP for patients whose inspiratory effort is extremely weak.
I:E = 1:3 – Ti Max limits the inspiration time for patients who require a longer expiration time.
Rise time adjustment
Rise time sets the time taken for the VPAP to reach IPAP. The greater the rise time value, the longer it takes for pressure to increase from EPAP to IPAP.
Patients with a high ventilatory demand may prefer a shorter rise time, while patients who are slow breathers may prefer a longer rise time.
Note:
A prolonged rise time inhibits fast pressurization; therefore, rise time should not be set longer than Ti Max or the patient’s normal inspiratory time.
Combine the S9 VPAP with ResMed’s premium masks for a system that delivers more comfort and compliance.
TiControl™ for maximum control and customized therapy
Another unique feature of ResMed’s bilevels, TiControl™ allows you to set minimum and maximum inspiratory time limits to accommodate individual respiratory conditions. The minimum and maximum time limits are set at either side of the patient’s ideal spontaneous inspiratory time, providing a “controlled period” for the patient to breathe on their own and spontaneously cycle to EPAP.
The minimum time limit is set via the Ti Min parameter and the maximum time limit is set via the Ti Max parameter. TiControl’s Ti Max and Ti Min parameters play a significant role in maximizing synchronization by effectively intervening to limit or prolong the inspiratory time when required. Along with Vsync, this ensures synchronization even in the presence of significant mouth and/or mask leak.
Ti Max limits the inspiration time for patients who require a longer expiration time
Ti Min prevents the premature cycling to EPAP for patients whose inspiratory pressure is extremely weak
Patient breath (BPM)
Ttot = 60/BPM (sec)
I:E = 1:2 (reference)
Sufficient inhalation time
I:E = 1:1
Secure exhalation
time
I:E = 1:3
Ti Min Ti Max Ti Max
10 6 2.0 1.0 2.0 1.5
15 4 1.3 1.0 2.0 1.3
20 3 1.0 0.8 1.5 1.0
25 2.4 0.8 0.7 1.2 0.8
30 2 0.7 0.6 1.0 0.7
35 1.7 0.6 0.5 0.8 0.7
40 1.5 0.5 0.5 0.7 0.7
IPAP
EPAP
0
RiseTime
Breath cycle
TiControl
Cyclewindow
Pressure
Patient flow
Ti Max
Ti Min
The following table is a guide to selecting the Ti Max and Ti Min values that best correspond to the patient’s respiratory rate and inspiration and expiration ratio, depending on their respiratory condition.
