Poll: ResMed Vs Respironics
ResMed
Respironics
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Which Res? Urgent!
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Sleepster Offline
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Posts: 4,993
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #31
RE: Which Res? Urgent!
(07-05-2014 12:19 AM)diamaunt Wrote:  and then I got tired of reading about it.

Don't blame you. Thanks, though, for clearing that up.

I plan to figure out a way to connect a manometer to a CPAP hose and measure the pressure as I breathe.

Sleepster
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www.ApneaBoard.com


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.
07-05-2014 02:12 AM
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vsheline Online

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Posts: 1,907
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #32
RE: Which Res? Urgent!
(07-05-2014 02:04 AM)diamaunt Wrote:  
(07-05-2014 12:48 AM)robysue Wrote:  Thanks for confirming that I'm not off my rocker. I knew I had reasons to think that the maximum pressure relief was 1.5cm.

And yet, that chart I dug up earlier tonight from some very old Resprionics stuff does seem to run counter to all these descriptions about Flex.

well, very old, perhaps it changed...


I read a white paper last year which was posted on a Respironics website (maybe written years earlier, not sure) which described the amount of pressure relief as approximately one cm H2O per step, but emphasized that it was Flow based and so could be more or less. Tonight I searched some of the Philips Respironics websites and googled to try to find it again, but did not find the exact same paper.

Tonight I found the paper below, published in Sleep Diagnosis and Therapy, Jan-Feb 2009 (which was not very long ago), with a figure from Respironics on page 22 showing "Simulated C-Flex Breath" with varying pressure relief of 2 or 3 cm H2O, and this was with a C-Flex setting of 2, not 3:
http://www.sleepdt.com/_journal/v4n1/pdf/SDT-20-25.pdf

Of course, an issue with simulations is: Garbage In, Garbage Out. If the assumed Flow is too large, the resulting pressure relief will be too large.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 07-05-2014 04:19 AM by vsheline.)
07-05-2014 03:18 AM
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vsheline Online

Advisory Members

Posts: 1,907
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #33
RE: Which Res? Urgent!
(07-04-2014 12:05 PM)cowboy1970 Wrote:  Is their new machine some kinda break through in technology that left Resmed S9 Autoset in the dust?

I realize everyone is busy with holiday, but shoot me a quick opinion in this thread to help me make my decision. I gotta face the music Monday, and am very nervous.

PS, the cpap store actually told me that they CAN'T give me a resmed because my pulmonary doc has an outstanding order to only issue respironics. This got my Irish up.

Hi cowboy1970,

If you prevail upon the doctor to prescribe an S9 AutoSet with heated hose, you will have a spare of everything: Power Adapter, power cord, Blower, humidifier, water tank, etc. Only one type of air filter to buy. The simplicity would be valuable.

Personally, I think the type of pressure relief (EPR) offered on ResMed machines is more comfortable. But I think EPR works best on an APAP machine and requires the Pressure to be raised if using EPR on a fixed-pressure CPAP machine which is unable to automatically raise its pressure whenever needed.

Take care,
-- Vaughn

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
07-05-2014 04:08 AM
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diamaunt Offline

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Posts: 436
Joined: May 2012

Machine: S9 VPAP Auto 36006
Mask Type: Full face mask
Mask Make & Model: mirage quattro/pilairo q
Humidifier: none
CPAP Pressure: 9-20ish
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: texas

Post: #34
RE: Which Res? Urgent!
(07-05-2014 02:12 AM)Sleepster Wrote:  
(07-05-2014 12:19 AM)diamaunt Wrote:  and then I got tired of reading about it.

Don't blame you. Thanks, though, for clearing that up.

I plan to figure out a way to connect a manometer to a CPAP hose and measure the pressure as I breathe.

perhaps an oxygen port,and a hose loop in that with water in it, (I'd think that would be the easiest home made one.)

bought manometers come with a T fitting, I believe.

I'd be interested in hearing the results.
(This post was last modified: 07-05-2014 02:47 PM by diamaunt.)
07-05-2014 02:47 PM
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Sleepster Offline
Wiki Editor
Moderators

Posts: 4,993
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #35
RE: Which Res? Urgent!
I have access to lab equipment. It will be interesting trying to rig something up. A water manometer will be easy enough to make and I will need to experiment with tube diameters, I think, to get a fast-enough response time. In other words, when the pressure changes quickly will the manometer reading change fast enough to capture it? That Bi-Flex pressure dip happens rather quickly and we are trying to find its minimum value.

I wonder if this information is available in the pressure graphs generated by EncoreBasic or SleepyHead. So far I haven't been able to find it.

The electronic pressure sensors that I have are very likely not sensitive enough to measure fractions of a centimeter of water. Perhaps someone who takes CPAP machines apart might be able to figure out how the pressure sensors work. I might then be able to connect one to a computer interface and use the software I have to graph the data. Wink

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


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.
07-05-2014 07:28 PM
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diamaunt Offline

Members-b

Posts: 436
Joined: May 2012

Machine: S9 VPAP Auto 36006
Mask Type: Full face mask
Mask Make & Model: mirage quattro/pilairo q
Humidifier: none
CPAP Pressure: 9-20ish
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: texas

Post: #36
RE: Which Res? Urgent!
(07-05-2014 07:28 PM)Sleepster Wrote:  Perhaps someone who takes CPAP machines apart might be able to figure out how the pressure sensors work. I might then be able to connect one to a computer interface and use the software I have to graph the data. Wink

jedimark was talking about experimenting with something on this list:
http://www.freescale.com/files/sensors/doc/data_sheet/MPX5010.pdf

the pressure sensor in the s9 is a smt chip that's vented into the airflow near the outlet.

there's no pic of the PRs1 pressure sensor in the service manual I've got, and I've not taken one apart, the service manual indicates they're all clustered right by the outlet.
07-06-2014 12:25 AM
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Sleepster Offline
Wiki Editor
Moderators

Posts: 4,993
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #37
RE: Which Res? Urgent!
(07-06-2014 12:25 AM)diamaunt Wrote:  jedimark was talking about experimenting with something on this list:
http://www.freescale.com/files/sensors/doc/data_sheet/MPX5010.pdf

They claim a 5% maximum error. We're measuring pressures on the order of 10 cm H2O, and 5% of that is 0.5 cm H2O.

It might be suitable. Barely.

It would be more fun to salvage one from a CPAP machine!

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


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.
07-06-2014 03:56 PM
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APAAW Offline

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Posts: 54
Joined: Nov 2013

Machine: Respironics 660 BiPAP Series One
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: Respironics Series One
CPAP Pressure: 9.5 - 13.5 BiPAP
CPAP Software: SleepyHead

Other Comments: My second time on CPAP, finally successfully

Sex: Male
Location: Kansas USA

Post: #38
RE: Which Res? Urgent!
I wonder if that same Freescale component couldn't be going into some CPAPs. They might be selected for accuracy, or maybe just calibrated to adjust for consistent errors out of the component (assuming the error is consistent over time and a reasonable range of temperatures, etc.).

It sounds like you've got access to the lab equipment to settle this and some other questions. The results will be interesting. Thanks much!
07-06-2014 04:31 PM
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cowboy1970 Offline

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Posts: 67
Joined: Jun 2012

Machine: Resmed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Puritan Bennett Breeze
Humidifier: H5i
CPAP Pressure: around 11 now (2/20/13)
CPAP Software: ResScan

Other Comments: Try not to think about a spider crawling up your nose from inside your tubing as your drift off. lol

Sex: Male
Location: Tacoma, WA

Post: #39
RE: Which Res? Urgent!
I won't mention my doctor's name because I noticed others aren't naming names either, but I am frustrated and very tempted. lol

I left a message with my doctor's office yesterday, explaining that I wanted a ResMed S9 AutoSet with H5i humidifier, washable tub, climateline, and puritan breeze mask. I told them the pressure settings I used for years before were MIN STARTING 9 - MAX 20. The machine kept it around 11 most of the night.

This morning they called back to tell me that this would be fine, except they will only set the air to 9, no adjusting. They said this is what the sleep study said would work for me. They also said that I can always come in as often as I like to have the air adjusting up or down if needed. (kaching kaching)

This makes no sense to me. Is my doctor just being stubborn or has no understanding of how the autoset works?
(This post was last modified: 07-08-2014 11:36 AM by cowboy1970.)
07-08-2014 11:35 AM
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retired_guy Offline

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Posts: 2,744
Joined: Jan 2014

Machine: ResMed S9 Autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: ResMed
CPAP Pressure: 10.6/14, EPR 3
CPAP Software: ResScan SleepyHead

Other Comments: Is it bedtime yet?

Sex: Male
Location: Beautiful, albeit very wet Oregon Coast

Post: #40
RE: Which Res? Urgent!
Sometimes they just think the more control they exercise on their patients the easier their life will be. That's pretty much true I suppose, but around here it's all about patient empowerment.

so......................... If my doc told me they were going to set my machine at 9 and just leave it at that, I'd say "thanks a bunch," go home and do what I do.

Using your experience as an example, I'd be setting my machine to a low of 8 or 9, and a high of about 14. I don't like leaving the machine full out because that too can sometimes cause goofy things to happen.
07-08-2014 11:56 AM
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