Inspiration

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

David Mahon <news@amigo.co.uk> wrote:

> I quite fancy "having a go" with an Inspiration - obviously I've had a look
> at that Amazon program on TV and it's rekindled my desire.

ARGH!!!! NO!!! DON'T DO IT!!!!!
It's a black hole for money and seriously addictive.

> So anyway, I had a look at a few websites to see how much these things
> are likely to cost and to run.

You can download the Inspiration etc. manuals here
http://www.ambientpressurediving.com/manual.htm

> The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
> 3-6 hours, is that right?

No. Three hours top wack for a fill unless you have the new
fancy monitoring. The risk is not a patient becoming distressed
from to much CO2 but a sudden blackout, which is a bitch diving,
so we are very careful not to push to anything like the limits.

> At work I see people on what I thought were "rebreathing" systems all the
> time (for economy of anaesthetic gases - I'm told that sevoflurane is expensive).
> The sodalime doesn't appear to get changed all that often and certainly lasts
> a lot longer than 3 hours or I'd see them changing it on occasion. As it
> is, I don't think I can ever remember seeing them physically change it, though
> they obviously do from time to time. Maybe anaesthetic machines are not run
> fully closed circuit after all (perhaps any one with anaesthetic knowledge
> here can elaborate).

Hey remember that the patient is about as relaxed as they can be so their CO2
production rate is rock bottom. You aren't going to get it lower without cutting
bits off. You, faffing around on an oh so interesting wreck in a current, ain't
going to be like that.

> can I just "borrow" some sodalime from theatres for use in one?

I think it's a different grade. There are certain tricks that make it better
in the high flow rates used in diving. Remember that as the pressure goes up
you pack more and more grams of gas into each lungfull.

What part of the country are you in? Perhaps we have somebody near can
show you one.

nigelH

In article <42551c64$1@news.amigo.co.uk>, David Mahon <news@amigo.co.uk> wrote:
>
>I quite fancy "having a go" with an Inspiration - obviously I've had a look
>at that Amazon program on TV and it's rekindled my desire. Maybe on my next
>trip. So anyway, I had a look at a few websites to see how much these things
>are likely to cost and to run.
>
>The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
>3-6 hours, is that right?

Sofnolime. It's the trade name of the CO2 absorbent made by molecular
products.

It lasts just 3 hours.

Or less.

There are 3 rules of using it which you get taught on your course
and it's in the manual (Which you can download from their site -
http://www.ambientpressurediving.co.uk/)

For a slightly different take on it, see

http://lists.drogon.net/inspiration/zorg.html

>At work I see people on what I thought were "rebreathing" systems all the
>time (for economy of anaesthetic gases - I'm told that sevoflurane
> is expensive).

>The sodalime doesn't appear to get changed all that often and certainly lasts
>a lot longer than 3 hours or I'd see them changing it on occasion. As it
>is, I don't think I can ever remember seeing them physically change it, though
>they obviously do from time to time. Maybe anaesthetic machines are not run
>fully closed circuit after all (perhaps any one with anaesthetic knowledge
>here can elaborate). And if there are any anaesthetists that have experience
>with an Inspitration - can I just "borrow" some sodalime from theatres for
>use in one?

Maybe they have seriously expensive CO2 monitors which will tell them
when the sodalime breaks through and the CO2 in the loop becomes critical.
Right now, it's not practical to do this in a breathing loop, so we have
a set of rules which we have to obey.

Also note that in a hospital, the atmospheric pressure is one
bar. Underwater it's more, and although your CO2 production rate remains
the same, things just happen differently. Faster. I'm convinced CO2 is
responsible for more of the Inspiration fatalities than we have evidence
for. Nothing hard to back this up, but even less is known about hyperbaric
CO2 poisoning, then O2 toxicity.

If you are into "technical Nitrox" diving, then an Inspiration will be
immediately cheaper to run than a twinset of Nitrox and a side-slung or
2 of Nitrox and/or O2.

But don't ever skimp on the Sofnolime, and always by the stuff that they
recommend - thats what it was tested on. Anything else is untested and
you can not apply any of the factory rules and recommendations anymore. You
might as well play Russian roulette with yourself.

Gordon

In article <42551c64$1@news.amigo.co.uk>, David Mahon <news@amigo.co.uk> wrote:
>
>I quite fancy "having a go" with an Inspiration - obviously I've had a look
>at that Amazon program on TV and it's rekindled my desire. Maybe on my next
>trip. So anyway, I had a look at a few websites to see how much these things
>are likely to cost and to run.
>
>The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
>3-6 hours, is that right?

Sofnolime. It's the trade name of the CO2 absorbent made by molecular
products.

It lasts just 3 hours.

Or less.

There are 3 rules of using it which you get taught on your course
and it's in the manual (Which you can download from their site -
http://www.ambientpressurediving.co.uk/)

For a slightly different take on it, see

http://lists.drogon.net/inspiration/zorg.html

>At work I see people on what I thought were "rebreathing" systems all the
>time (for economy of anaesthetic gases - I'm told that sevoflurane
> is expensive).

>The sodalime doesn't appear to get changed all that often and certainly lasts
>a lot longer than 3 hours or I'd see them changing it on occasion. As it
>is, I don't think I can ever remember seeing them physically change it, though
>they obviously do from time to time. Maybe anaesthetic machines are not run
>fully closed circuit after all (perhaps any one with anaesthetic knowledge
>here can elaborate). And if there are any anaesthetists that have experience
>with an Inspitration - can I just "borrow" some sodalime from theatres for
>use in one?

Maybe they have seriously expensive CO2 monitors which will tell them
when the sodalime breaks through and the CO2 in the loop becomes critical.
Right now, it's not practical to do this in a breathing loop, so we have
a set of rules which we have to obey.

Also note that in a hospital, the atmospheric pressure is one
bar. Underwater it's more, and although your CO2 production rate remains
the same, things just happen differently. Faster. I'm convinced CO2 is
responsible for more of the Inspiration fatalities than we have evidence
for. Nothing hard to back this up, but even less is known about hyperbaric
CO2 poisoning, then O2 toxicity.

If you are into "technical Nitrox" diving, then an Inspiration will be
immediately cheaper to run than a twinset of Nitrox and a side-slung or
2 of Nitrox and/or O2.

But don't ever skimp on the Sofnolime, and always by the stuff that they
recommend - thats what it was tested on. Anything else is untested and
you can not apply any of the factory rules and recommendations anymore. You
might as well play Russian roulette with yourself.

Gordon

In article <42551c64$1@news.amigo.co.uk>, David Mahon <news@amigo.co.uk> wrote:
>
>I quite fancy "having a go" with an Inspiration - obviously I've had a look
>at that Amazon program on TV and it's rekindled my desire. Maybe on my next
>trip. So anyway, I had a look at a few websites to see how much these things
>are likely to cost and to run.
>
>The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
>3-6 hours, is that right?

Sofnolime. It's the trade name of the CO2 absorbent made by molecular
products.

It lasts just 3 hours.

Or less.

There are 3 rules of using it which you get taught on your course
and it's in the manual (Which you can download from their site -
http://www.ambientpressurediving.co.uk/)

For a slightly different take on it, see

http://lists.drogon.net/inspiration/zorg.html

>At work I see people on what I thought were "rebreathing" systems all the
>time (for economy of anaesthetic gases - I'm told that sevoflurane
> is expensive).

>The sodalime doesn't appear to get changed all that often and certainly lasts
>a lot longer than 3 hours or I'd see them changing it on occasion. As it
>is, I don't think I can ever remember seeing them physically change it, though
>they obviously do from time to time. Maybe anaesthetic machines are not run
>fully closed circuit after all (perhaps any one with anaesthetic knowledge
>here can elaborate). And if there are any anaesthetists that have experience
>with an Inspitration - can I just "borrow" some sodalime from theatres for
>use in one?

Maybe they have seriously expensive CO2 monitors which will tell them
when the sodalime breaks through and the CO2 in the loop becomes critical.
Right now, it's not practical to do this in a breathing loop, so we have
a set of rules which we have to obey.

Also note that in a hospital, the atmospheric pressure is one
bar. Underwater it's more, and although your CO2 production rate remains
the same, things just happen differently. Faster. I'm convinced CO2 is
responsible for more of the Inspiration fatalities than we have evidence
for. Nothing hard to back this up, but even less is known about hyperbaric
CO2 poisoning, then O2 toxicity.

If you are into "technical Nitrox" diving, then an Inspiration will be
immediately cheaper to run than a twinset of Nitrox and a side-slung or
2 of Nitrox and/or O2.

But don't ever skimp on the Sofnolime, and always by the stuff that they
recommend - thats what it was tested on. Anything else is untested and
you can not apply any of the factory rules and recommendations anymore. You
might as well play Russian roulette with yourself.

Gordon

In article <42551c64$1@news.amigo.co.uk>, David Mahon <news@amigo.co.uk> wrote:
>
>I quite fancy "having a go" with an Inspiration - obviously I've had a look
>at that Amazon program on TV and it's rekindled my desire. Maybe on my next
>trip. So anyway, I had a look at a few websites to see how much these things
>are likely to cost and to run.
>
>The Sofnalime seems to be used up quite rapidly. Apparantly 2.5kg only lasts
>3-6 hours, is that right?

Sofnolime. It's the trade name of the CO2 absorbent made by molecular
products.

It lasts just 3 hours.

Or less.

There are 3 rules of using it which you get taught on your course
and it's in the manual (Which you can download from their site -
http://www.ambientpressurediving.co.uk/)

For a slightly different take on it, see

http://lists.drogon.net/inspiration/zorg.html

>At work I see people on what I thought were "rebreathing" systems all the
>time (for economy of anaesthetic gases - I'm told that sevoflurane
> is expensive).

>The sodalime doesn't appear to get changed all that often and certainly lasts
>a lot longer than 3 hours or I'd see them changing it on occasion. As it
>is, I don't think I can ever remember seeing them physically change it, though
>they obviously do from time to time. Maybe anaesthetic machines are not run
>fully closed circuit after all (perhaps any one with anaesthetic knowledge
>here can elaborate). And if there are any anaesthetists that have experience
>with an Inspitration - can I just "borrow" some sodalime from theatres for
>use in one?

Maybe they have seriously expensive CO2 monitors which will tell them
when the sodalime breaks through and the CO2 in the loop becomes critical.
Right now, it's not practical to do this in a breathing loop, so we have
a set of rules which we have to obey.

Also note that in a hospital, the atmospheric pressure is one
bar. Underwater it's more, and although your CO2 production rate remains
the same, things just happen differently. Faster. I'm convinced CO2 is
responsible for more of the Inspiration fatalities than we have evidence
for. Nothing hard to back this up, but even less is known about hyperbaric
CO2 poisoning, then O2 toxicity.

If you are into "technical Nitrox" diving, then an Inspiration will be
immediately cheaper to run than a twinset of Nitrox and a side-slung or
2 of Nitrox and/or O2.

But don't ever skimp on the Sofnolime, and always by the stuff that they
recommend - thats what it was tested on. Anything else is untested and
you can not apply any of the factory rules and recommendations anymore. You
might as well play Russian roulette with yourself.

Gordon