Back from the Sleep Doc - VPAP Adapt SV

DreamDiver wrote:JohnB, unadog, DSM

You guys are the tops. Thank you. Along with the articles (where I could understand them) and the chart explanation by Muffy, I think I'm beginning to get it. There are so very many variables with Periodic Breathing and Central Apnea and how they might each be best controlled under such variable circumstances that it's just smoother and easier to regulate the physical systems than the neurological systems. In the end, a better night's sleep is achieved. Brain, kidneys, hearts and lungs are spared further injury. Am I getting the gist?

Dude!, get the machine! (If you can) You have few centrals through the night so you do most of your breathing anyway. And believe me the rainout in a non vented mask is not pleasant and, I think, unavoidable without raising the room temp to uncomfortable levels.

..... of course, what you may have to consider is that they, Resmed, (Great products, Lousy company) may be bringing out a new S9 type SV that can drive the software and you'll be stuck with the old one

Deon

Just wanted to let you know.. The ResMed unit will capture high resolution data for the last 3 sessions and summary data for 365 (comes to mind). You have to download the data if you want the detailed information every three days or the machine over-writes the oldest. The total cost of the cable (as John mentioned), null modem adaptor and software was ~$21.00. It's the only machine I've ever used and because 95% of my apneas are central, I know it works well for them. I think I get a regualr apnea maybe once a week and since being on the Adapt SV between 0 and 7 per night (they were ~37 per hour) my pressure is high, like John's at around 18-25. That mask you use works great at the higher pressures, but going into the fourth month I am starting to get more frequent leaks, so it's time to replace the cushion.

Ruffinit wrote:... That mask you use works great at the higher pressures, but going into the fourth month I am starting to get more frequent leaks, so it's time to replace the cushion. ...

That's a good point about the ResMed unit.

Due to how it works, it is VERY leak intolerant. In addition to more frequent cushion replacements, I also find that I need to tweak the mask straps on occassion.

As a result of this, I can go from "very good (not quite excellent)" on mask leaks to "very poor" literally overnight. And the unit is less effective on the apneas (and resultingly how I feel) when the mask leaks badly.

Ruffinit wrote:Just wanted to let you know.. The ResMed unit will capture high resolution data for the last 3 sessions and summary data for 365 (comes to mind). You have to download the data if you want the detailed information every three days or the machine over-writes the oldest. The total cost of the cable (as John mentioned), null modem adaptor and software was ~$21.00. It's the only machine I've ever used and because 95% of my apneas are central, I know it works well for them. I think I get a regualr apnea maybe once a week and since being on the Adapt SV between 0 and 7 per night (they were ~37 per hour) my pressure is high, like John's at around 18-25. That mask you use works great at the higher pressures, but going into the fourth month I am starting to get more frequent leaks, so it's time to replace the cushion.

Ruffinit,

Also keep a spare strap. I did a new cushion but was being driven to distraction with leaks then the penny dropped & I replaced the mask strap & the leaks stopped instantly.
The leaks got so bad I stopped using the Vpap Adapt SV & went back to the more mild mannered Bipap Auto SV. But, am now back on the Vpap.

Cheers

DSM

I was just looking at buying a new cushion - $56 at cpap.com I thought they used to be $26?

I just got a new Activa LT from my DME 2 weeks ago. So no new cushions or masks available from them right now. Any hope that the Activa would work on the VPAP?

I turned my EEP down to 8.2. PS min is at 3.0 and max is down to 10.0 to keep the pressure down a bit. Still a lot of leaks though.

Only hypopneas in events for the 3/4 of the night when leaks were under control. No events during a 1 hour nap today. Do all of the events show up via cable, without the full detailed data?

Is it flow data only that I am missing without the ResLink? I think I would rather put the money toward a Bipap Auto SV (or wait for my insurance one) instead of buying a ResLink right now.

Michael

I saw another thread and some info about cables and remember some suggestions I had earlier in this thread.
I could probably do okay with this combination. No extra null modem adapter would be necessary since it's integral to the cable.
https://www.cablesforless.com/p-897-25- ... emale.aspx

But of course, I'd also need this:
http://www.newegg.com/Product/Product.a ... -_-Product


DSM suggested that USB to Serial can be finicky. I don't actually have a serial port on my laptop.
Given that all I have are USB ports, could this be a likely viable option?

Just to get this straight. This is the kind of data I can expect to get from the VPAP Adapt SV using the null modem setup:

from yet another thread.

I would only have to plug the machine into my computer once a day to see this kind of data.
My computer does not have to be connected all night long in order to record the data.
It should just be a matter of straight transfer from the machine to the computer once a day?

There seem to be two machines: VPAP Adapt SV and VPAP Adapt SV Enhanced.
I'm assuming it's better to get the 'Enhanced' if I can find it.
What's the difference?

DSM - Thanks.. I was just thinking about the strap as I posted to this.. Great idea, i'll get one of those too and try them one at a time.

Diver - Yes, that cable will work, I didn't want that type of adapter hanging off my USB port and the USB adapter that fits between the end of the cable and the machine is only about 1/2" long, so I wasn't too worried about it. The ResMed (ResScan) software has the ability to show Flow Data. I believe that the Flow Data is what is in the detailed chart as volume etc, but haven't really paid much attention to that. I can email you a copy of one of my detailed reports if you would like to see what it looks like and what is included.

The machine records the detailed data and you only have to plug into the machine and download it once every three days. Takes a couple minutes. You don't have to keep the computer hooked up. I use a laptop and if I have any questions I take it with me to the DME / Doc etc... Within the software you only have to click a button to email the records you want to send via email.

The difference between the Vpap Adapt SV and the Enhanced (IIRC) is that

1) The Enhanced can go up to 25 CMs max pressure support
2) The AHI data is provided whereas on my model it isn't.

Re the Reslink, It extends the detail data recording but I just can't recall how many extra
nights that is. The actual data channels recorded include ...

# pressure response
# leak
# apneas/hypopneas
# minute ventilation
# flow limitation
# snore

I have not ever seen any snore or flattening data off my ResLink when attached to the Vpap Adapt SV.
I presume that only comes from the Cpap Autoset machines as the Vpap Adapt SV targets volume.

This link shows some data from a year ago off the Reslink on my Vpap Adapt SV.
http://www.internetage.ws/cpapdata/dsm- ... 5jan09.pdf

Here is data from an S8 Vantage with a ResLink attached. It has lots of flattening data & I have seen snore data too.
http://www.internetage.ws/cpapdata/dsm- ... 3nov08.pdf

DSM

In the documetation it says that we are missing some detailed data with the serial cable vs. the ResLink. Is that "flow data"? I haven't used the ResMed software before, all Respironics until now:

* Low resolution detailed data only (known in AutoScan as Night Profile data). (that is with the cable - not "high resolution detailed data"?)


How does the data from the ResMed compare to that from the Bipap Auto SV? I am still debating getting a Bipap right away from insurance, vs. holding out for a System One SV later this spring/summer, which should have data by breath.

DreamDiver, I had an older eMachines Celeron computer with 2GB of RAM, Win XP, that I was not using, that has a serial port. I just dragged that into the bedroom and have it parked next to the machine and hooked up. Yes, download is after a sleep period, just like with a card (But no hassles of taking the card out, etc. It really is quite nice.) I also wasn't sure if it was "real time" recording and the coimpouter had to be running all night. The documentation is a little lacking sometimes.

It is also easy to change the machine settings through the software.

FWIW, my previous rants about software development apply more to Respironics' previous releases, than to the 3.10 ResScan release that I have now. Pretty decent software!

Here are the 2 Reslink manuals - the user manual covers both the Reslink & Reslink S8 (2 different versions but for different shaped machines).

DSM

http://www.internetage.ws/cpapdata/manuals/reslink/

(click either manual to download it)

#2 - also I have info that says that the S8 Reslink is pretty much the same as the S9 data gathering.
That is, 30 detailed sessions, 365 summary session. High Res flow data (25hz).

And, that the Nonin xPOD (and thus the Nonin iPod) were the orginal SpO2 attachments to the Reslink

>>
See section D on the illustration sheet (8000J Adult Flex Sensor only illustrated).
The NONIN® Model 3012 Pulse Oximeter is compatible for use with the RESLINK. It
can be used with either the 8000J Adult Flex Sensor or 8000AA Adult Finger Clip. The
same oximeter cable can be used for either sensor. These accessories are available
from ResMed.
<<

Nonin xPod & iPod (the iPod is a finger probe plus the card from an xPod built into a single device)
http://www.nonin.com/documents/Xpod%20S ... ations.pdf
http://www.nonin.com/OEMSolutions/iPod

D

A-ha !!! - RESLINK SpO2 unit

At last I found the actual doc saying which xPod was compatible with Reslink. I had obtained a selection of xPods & iPods & always believed the correct one was the Nonin 3011 but it turns out that it is the Nonin 3012 (see data above). And I spent days trying to feed a Nonin 3011 xPod into my Reslink & wondered why I couldn't get any data !!!

Well now I can have a go with a 3012 based iPod or xPod. If it works I may have a few for sale a hell of a lot cheaper than Resmed
(the problem is that the Reslink uses a proprietary 3-pin plug that I could not buy anywhere so I had to fabricate my own).

DSM

#2

The xpod that matches is the 3012 which is the high data rate version of the xpod
I also believe the iPod 3212 should work with Reslink because it has the same data and data rate as the 3012. The only diff is the included finger probe.

Getting one working can be a project for the Easter break

DreamDiver wrote:... No extra null modem adapter would be necessary since it's integral to the cable. ...

I have a null modem cable and a serial to USB adapter. Works fine. It is (for whatever reason, ResMed dropped their guard!!) 100% standard complaint!!! So, any old null modem cable will work (with proper ends). Ditto on the Serial to USB adapter.

One reason DSM noted that the serial to USB adapters can be flakey is due to the drivers. You stand a better chance of having it work if you have 32 bit version of Windows. (Windows Vista, Windows XP, etc.). So, if you purchase an adapter, be CERTAIN it supports your version of Windows.

The null modem cable is just a null modem cable. Even if all you have is a longish serial to USB adapter, then you can purchase a little null modem adapter to add to the end of that cable. It's pretty easy to do.

Hope that helps.

I haven't seen the ResLink available anywhere on line for the VPAP Adapt SV. Does anyone even sell it any longer?
I've bought a null modem cable. Next step - the serial port adapter.

DreamDiver wrote:I haven't seen the ResLink available anywhere on line for the VPAP Adapt SV. Does anyone even sell it any longer?
I've bought a null modem cable. Next step - the serial port adapter.

If they can be obtained, JohnBFisher may be able to say. Hopefully he has made contact with our previous supplier who will spell out if they can still be obtained. We (Slinky & I) were buying them for around $200 each. I have a std one & an S8 one.

DSM

OK, how about making your own ResLink?

Is there a logic controller in the device? Or is it just a way to connect a data card to the 15 pin port?

If it is just the latter, it should be easy enough to make one. All you would have to do is trace the connection for each pin to the contact on the card reader/holder using an Ohm meter.

The 15 pin adapter is easy enough to get. I don't know how many contacts there are to the SmartMedia card adapter? Maybe 4 at most? Probably just two. So you would just need to solder up the existing wires on a normal SM card reader to a 15 pin adapter!!

My bet is that that all the logic is in the VPAP to drive that 15 pin port. The ResLink is just an "after market" way to connect a storage device. A way to update an old architecture to accept the Smart Media card until they were able to come out with the newer S9 machine architecture?

DSM, could you take a look at your ResLink and see what you think it might contain? Just the 15 pin, wires, and the card holder? I am not sure how fully they come apart.

But if they really do/did sell for only $180 to $200, I bet they are just a hunk of plastic to hold the SM card, knowing the markups in this industry! Do you have an Ohm meter handy? If you can tell me the pin-outs, I'll make my own ResLink to test this out .... After all, the cable they are using is just an off-the-shelf null modem cable.

Cool! We can start a small business - although the demand is likely to be low!

Michael