End-Tidal Monitoring Equipment (ETCO2)

CPAP, BiPAP, and other sleep systems

Moderators: SCNVsleep, labman2

End-Tidal Monitoring Equipment (ETCO2)

Postby sleepadmin » Tue Mar 15, 2005 7:10 pm

Our trusted CO2SMO machine quit on us. :cry:

What machines are you guys using with your sleep systems (and do you like it)?

Anyone selling one? :wink:
User avatar
sleepadmin
Admin
 
Posts: 1873
Joined: Thu Mar 13, 2003 2:30 pm

Capnocheck

Postby BillA » Tue Mar 15, 2005 10:52 pm

I've heard good things about the Smith-BCI Capnocheck. 0-1 output voltage. Simple calibration. ETCO2 and waveform output.
User avatar
BillA
Member
 
Posts: 46
Joined: Mon Mar 17, 2003 4:18 pm
Location: Eagle Idaho

EtCO2 readings

Postby JP » Tue Feb 27, 2007 3:45 pm

I know that normal values of etco2 are between 35-45, but the capnograph I am using drops as low as 2 sometimes in between breaths. Our medical director quit running peds because he says this is not functioning properly, and doesn't want to waste time running inaccurate studies. Has anyone else experienced this? Do you know if it depends on the capnograph being used?
User avatar
JP
Member
 
Posts: 7
Joined: Mon Feb 26, 2007 6:36 pm

Postby somnonaut » Tue Feb 27, 2007 5:11 pm

User avatar
somnonaut
Senior Member
 
Posts: 14160
Joined: Thu Dec 11, 2003 6:03 pm
Location: http://tinyurl.com/righteousdude

Postby Hypnagogic Hal » Tue Feb 27, 2007 8:54 pm

the capnograph I am using drops as low as 2 sometimes in between breaths


It sounds as if you are running the display in either real-time (continuous CO2) mode or dual inspiratory-expiratory mode, where you are viewing (alternately) end-tidal CO2 and end-inspiratory CO2 (with a little background water vapor or a calibration offset error.) There may be nothing wrong with the system; you may just have the wrong display parameters selected. :?
User avatar
Hypnagogic Hal
Senior Member
 
Posts: 428
Joined: Tue Aug 17, 2004 3:07 pm
Location: Deep in the Desert

Postby somnonaut » Wed Feb 28, 2007 3:26 am

Hey HH long time no hear.

From: http://www.capnography.com/outside/911.htm
Image
User avatar
somnonaut
Senior Member
 
Posts: 14160
Joined: Thu Dec 11, 2003 6:03 pm
Location: http://tinyurl.com/righteousdude

Postby somnonaut » Fri Oct 05, 2007 3:50 pm

Anyone use any of the new latest EtCo2 devices.
Cap One from Nihon Koden
http://www.nkusa.com/prod-monitor-capnography.htm

Or one from Nonin
http://nonin.com/products.asp?ID=31&sec=6&sub=77

Respironics
http://tidalwave.respironics.com/
No output mentioned)

Do you prefer sidestream or mainstream sampling/detection?
User avatar
somnonaut
Senior Member
 
Posts: 14160
Joined: Thu Dec 11, 2003 6:03 pm
Location: http://tinyurl.com/righteousdude

Postby Rick » Mon Oct 08, 2007 8:13 pm

I have heard good things about the Smiths Capnograph.
Remember that you need to monitor EtCO2 and Pressure concurrently, so you may want to take a look at the Pro-Tech MultiPurpose cannula - get ready for some self promotion - I developed this cannula to measure both parameters from both nostrils at the same time. No more issues with trying to figure out which nostril to measure pressure in, which doesn't work because the nose actually changes which side breathes well in an oscillating pattern.
User avatar
Rick
Senior Member
 
Posts: 1384
Joined: Wed Mar 19, 2003 8:42 pm
Location: Everett, WA

Postby somnonaut » Mon Oct 08, 2007 8:34 pm

Now if you can develop the tri cannula, and sequester the pflow and ETCO2 lines WHILE being able to administer O2...

Oh shit, there goes another patent.
User avatar
somnonaut
Senior Member
 
Posts: 14160
Joined: Thu Dec 11, 2003 6:03 pm
Location: http://tinyurl.com/righteousdude

Postby Rick » Mon Oct 08, 2007 10:42 pm

AH geesshh!!
I fill one request for a dual purpose, easy to use completely cool cannula and no one is satisfied, y'all want a TRIPLE function cannula!
Believe it or not, I am trying to free up some space in my brain to get to cogitating on this, you are not the first to ask, darn it.
User avatar
Rick
Senior Member
 
Posts: 1384
Joined: Wed Mar 19, 2003 8:42 pm
Location: Everett, WA

Postby slowdavesleep » Wed Jul 09, 2008 10:25 pm

If the suction generated by the ETCO2 is stable and does not change wouldn't it be possible just to split the cannula tube and have one end go to the pressure transducer and one to the capnograph? The pressure in the cannula would be biased, although if you were using an AC pressure transducer that wouldn't even matter.

If that wouldn't work I would like a tri-lumen nasal-oral cannula/thermistor with a toothpick, nail file and corkscrew. Also an ipod adapter on it. The oral piece of the cannula should also be cherry flavored. Although sugar free flavoring. With no aspartame. Never tested on animals. Biodegradable. Additionally you could add a check list of features of the cannula on the side of the package, comparing it to other cannulas and listing what bundled features your cannula includes. Does your cannula come with a bundled web browser?

PS Just being silly, I like Protech stuff :D
Last edited by slowdavesleep on Wed Jul 09, 2008 11:53 pm, edited 1 time in total.
User avatar
slowdavesleep
Senior Member
 
Posts: 400
Joined: Mon Mar 03, 2008 7:41 pm
Location: RPSGT NY

Postby Rick » Wed Jul 09, 2008 10:46 pm

Slowdave,
Even with a DC transducer it should not matter, the transducer will just see the change in pressure, whether the baseline is below ambient or above (if administering oxygen with the same cannula) it should be of little consequence. Most EtCO2 monitors do sample at a steady rate allowing this to work.
I'm just now trying to figure out how to fit the toothpick, nail file, corkscrew and bundled web browser into the iPOD adapter that will fit at the end of the cannula; I'll work on the thermal device attachments later.

:wink:
User avatar
Rick
Senior Member
 
Posts: 1384
Joined: Wed Mar 19, 2003 8:42 pm
Location: Everett, WA

Postby slowdavesleep » Tue May 25, 2010 6:29 pm

Topic revive! Anyone have any new favorites for capnographs? I just saw the nonin unit, it looks simple enough and the single use parts are reasonable. Problem is the calibration, you can't set the unit to high and low voltage. It just cycles from 0 volts for 1 minutes to 1volts for the next minute and then back to down 0 volts. It's OK but seems moderately annoying to turn it on, wait for a minute, set your high wait another minute and set your low. I guess that's not a huge deal but still.
User avatar
slowdavesleep
Senior Member
 
Posts: 400
Joined: Mon Mar 03, 2008 7:41 pm
Location: RPSGT NY

Postby somnonaut » Tue May 25, 2010 11:28 pm

Dave,

I have NEVER seen a ETCO2 unit suck more fluid out of patients than these things. Techs are changing water traps 2, 3 times A NIGHT!!!!!! The cal is great, get 60 sec LO, cal your signals, next 60 sec is high, cal you highs, you are done.
User avatar
somnonaut
Senior Member
 
Posts: 14160
Joined: Thu Dec 11, 2003 6:03 pm
Location: http://tinyurl.com/righteousdude

Postby slowdavesleep » Tue May 25, 2010 11:40 pm

Sensormedics cals require the high value to go in first, so that could be annoying. The traps sound kinda nasty to deal with. We use dehumidification tubing, and any fluids seem to dry up in it. Occasionaly I flush the pumps with alcohol via syringe.
User avatar
slowdavesleep
Senior Member
 
Posts: 400
Joined: Mon Mar 03, 2008 7:41 pm
Location: RPSGT NY

Next

Return to Other Equipment

Who is online

Users browsing this forum: No registered users and 2 guests

cron