Necessary to have a backup machine?

vometia wrote: ↑

Sat Oct 06, 2018 10:29 am

palerider wrote: ↑

Sat Oct 06, 2018 10:25 am

Nope. The hardware is the hardware, in fact, if it's like the S9 series (and I'm willing to bet money that it is) the internals of *all* the machines are identical, meaning that there's nothing different, hardware wise, between the cheapest brick, and the most expensive iVAPS machine.

That's how it was with the S9 (apart from the alarm modules that snapped onto the Tx, COPD, and ST-A models.

The only difference is the firmware, (and the outer case in the Air10 model line).

Anatomy of a S9: https://imgur.com/a/S0ojG

Well yeah, that's what I was getting at: physically identical, but the general idea is that both the hardware itself and also the bulk of software development is on the basis that it's going to be an APAP machine: I'm not really sure if this would really be a factor with hardware but I do know what software is like if some other functionality is added almost as an afterthought: "oh, give it to the interns, doesn't really matter how well tested it is" sort of thing. Okay, more likely, "I did this quick and dirty test as a proof of concept and-" "Oh, you've just created a product we can sell! Awesome!" Yeah, btdt.

No, see, CPAP is the simplest function, one has to improve things to go from there, all cpap is, spin the fan at a speed. then they got smarter and started measuring the pressure with a sensor, and started to vary the fan speed to maintain pressure as you breathed in (which would drop pressure) and out (which would raise pressure).

APAP is nothing more than a cpap that varies it's set pressure during the night.

So, it's a nice theory, but it's not valid.

Resmed's trick was to make base hardware that's good enough to do all the functions, without having to have specialty hardware.

There's far more to the line than APAP, including five+ specialized bilevel machines, fixed, auto, adaptive servo ventilation, timed, volume assured pressure support... so.. technically, the machine was designed to be a non-invasive ventilator, and then dumbed down.

But, dumbed down, it's 100% capable of providing that completely steady pressure at whatever it's set to.

If yours isn't doing that, it's defective, pure and simple, it's not that the machine isn't capable of being the simplest thing it can be...

In fact, I believe all the machines, apap, bilevel, auto bilevel, servo ventilator... ALL have a 'cpap' mode.

Every machine can be set to plain cpap mode:
DME's hate it when you pin them down into admitting it before witnesses.