03-16-2022, 12:28 PM
RE: Breath pattern question
I believe the defaults are:
Ti min 0.3 sec
Ti max 2.0 sec
Ti min 0.3 sec
Ti max 2.0 sec
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Breath pattern question
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Breath pattern question
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yankees123
Posts: 1,057 Threads: 119 Joined: Feb 2016
Machine: Resmed Aircurve10 VAUTO 
David Clark
Posts: 252 Threads: 39 Joined: Oct 2021
Machine: ResMed AirCurve™ 10 Vauto
03-16-2022, 12:35 PM
RE: Breath pattern question
Sleeprider
Wiki Editor 
Posts: 28,410 Threads: 88 Joined: Dec 2014
Machine: Resmed Aircurve 10 VAuto
03-16-2022, 12:42 PM
RE: Breath pattern question
The Ti min of 3.0 could be the culprit in all this. Definitely set that to 0.3.
Sleeprider
Apnea Board Moderator www.ApneaBoard.com ____________________________________________ Download OSCAR Software Soft Cervical Collar Optimizing Therapy Organize your OSCAR Charts Attaching Files Mask Primer How To Deal With Equipment Supplier INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
SarcasticDave94
Posts: 14,137 Threads: 21 Joined: Mar 2017
Machine: None again
03-16-2022, 12:44 PM
(This post was last modified: 03-16-2022, 12:47 PM by SarcasticDave94.
Edit Reason: Edit
)
RE: Breath pattern question
Sorry to ask David because I've forgotten, but was that VAuto a used unit? If that's the case, best practice is to reset the device to default before any usage.
PS wouldn't Ti Min/Max at 3.0 force all inhales to be 3 seconds, regardless of spontaneous efforts otherwise?
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Crimson Nape
Wiki Editor
Posts: 15,197 Threads: 195 Joined: Oct 2014
Machine: AirCurve 10 Vauto
03-16-2022, 12:50 PM
RE: Breath pattern question
You can perform a factory reset in the clinician menu. This will set both back to the base times.
If you have/had a Ti min set to 3 seconds, then that could very well be your problem. The Ti min setting determines how soon, or long, before the machine can drop the IPAP pressure. The Ti max setting controls the maximum time that the IPAP pressure will be maintained. I believe the default settings are, Ti min=.2 and the Ti max=2.8. For some reason, a Ti max setting of 3.1 feels more comfortable for most people. Leave the Ti min at the .2. The Ti min setting rarely needs to be changed. - Red
Crimson Nape
Apnea Board Moderator Project Manager for OSCAR - Open Source CPAP Analysis Reporter www.ApneaBoard.com ___________________________________ Useful Links -or- When All Else Fails: The Guide to Understanding OSCAR OSCAR Chart Organization Attaching Images and Files on Apnea Board Apnea Helpful Tips INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
David Clark
Posts: 252 Threads: 39 Joined: Oct 2021
Machine: ResMed AirCurve™ 10 Vauto
03-16-2022, 12:52 PM
RE: Breath pattern question
(03-16-2022, 12:44 PM)SarcasticDave94 Wrote: Sorry to ask David because I've forgotten, but was that VAuto a used unit? If that's the case, best practice is to reset the device to default before any usage. Unless they can reset the odometer on the machine I don't believe it was a used one. It wasn't supposed to be a used one. I "think" it has 200 and something hours on it. The first time I used it was Jan 3rd and I've used it for ~8 hrs every night since.
Sleeprider
Wiki Editor
Posts: 28,410 Threads: 88 Joined: Dec 2014
Machine: Resmed Aircurve 10 VAuto
03-16-2022, 02:10 PM
RE: Breath pattern question
I'm pretty sure this was operator error. Anyway, by changing TiMin back to 0.3 the anomaly will be gone. 100% sure.
Sleeprider
Apnea Board Moderator www.ApneaBoard.com ____________________________________________ Download OSCAR Software Soft Cervical Collar Optimizing Therapy Organize your OSCAR Charts Attaching Files Mask Primer How To Deal With Equipment Supplier INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Rubicon
Posts: 291 Threads: 1 Joined: Feb 2022
Machine: none
David Clark
Posts: 252 Threads: 39 Joined: Oct 2021
Machine: ResMed AirCurve™ 10 Vauto
03-16-2022, 06:05 PM
RE: Breath pattern question
Yes, I hope it's mystery solved. I've got the settings as Ti Min 0.2 and Ti Max 3.1 so we'll see what OSCAR has to say tomorrow morning. Thank you all again.
Rubicon
Posts: 291 Threads: 1 Joined: Feb 2022
Machine: none
03-17-2022, 06:58 AM
RE: Breath pattern question
No worries! Clearly, the 3.0 second I-time is readily apparent when plotted against the timeline:
![[Image: lGKvjn7.jpg]](https://i.imgur.com/lGKvjn7.jpg)
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Breath pattern question
