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Hi, There has been a descussion on O2 administration to victims of diving acdents in the Hyperbar list. I posted this translation/review of the Wenoll-system there. I thought it might interst some of you as well. > > OK, several people asked about it so here it is. > > The Wenoll-system. > First a little blurb from there ad: > > O2 recycling > The Wenoll-system was developed in cooperation with internationally known > doctors of dive medicin. It is the first O2 circultory system for treatment of > DCS. A special system of valves recirculats the aprox. 95% of unused O2 > back to the victim, insted of venting it to the atmosphere. This means that > except for spcific aplacation requirements you use just a small portion of the > O2 that you would need in an open system, do cover the treatment during > transport from the dive site. The 2-liter-tank provides O2 for up to 6 hours. > > A few general facts: > > The case consists of: > Set of hoses with T-conector > CO2 absorber with 2m conection hose for O2 tank > Reserve bag ? (This is where the O2 goes when the victim exhales) > Mask w/ band > Artifical nose > Mouthpiece > Nose clamp > Overpresure valve Adjustable from 0-20mbar, set to 4mbar > Short user info. in German > Instructions in several languages > 2-liter O2 tank with medical grade O2 > Special Regulator > > Cost: > For everything including the case- 866 DM > O2 tank 200bar with O2 - 273 DM > Special Reg. - 324 DM > Everything except tank & Reg. - 382 DM > As above without case - 292 DM > > CO2 Absorber with conections - 84DM > Artifical nose - 11,50 DM > > You need to replace the Artifical nose after every use. It is a filter that > heats and moisturizes the incoming O2. > > The CO2 Asorber shuld be replaced after aprox. 4 hours of use. It has an > indicator that changes color when replacement in needed. > > My impressions, what I learned: > > This is a very easy to use system. When I was introduced to the system they > had one person go up and put it together without any instructions, except for > what is on the inside of the lid of the case. He had it attached and working in > about 7 mins. With experiance I think that you could get it setup on a victim > in less then 3 mins. All conections are color and size coded so that you > can't put it together wrong. The only two things that you have to be carefull > about while setting up and starting are the set of the mask, and flushing the > system correctly. If the mask isn't air tight, you don't have 100% O2, and > if you don't flush correctly you also leave N2 in the system. > The special regulator is set up with a variable pressure control, that is used > to control the standard flow of O2 into the system. This is 0.5l/min. It also > has a 'flush' button that supplies 15x the setting on the standard flow. > This is used to flush the system. The system is flushed when starting and > every 15 - 20 mins. while in use. (This is from memory may be longer between > flushing.) > The doctor that introduced the system to us said that in tests, the system > supplied 100% O2 for the 6 hours when used correctly. The mask, and the > flushing procedure are the most important aspects, and the source of most > all problems in use of the system. > The system seems to be a very good solution to the problem of O2 administration > in the field. The case has two hard foam pieces to hold everything in place. > These pieces are not the best for field use. This is suposed to be changed > soon. > There is a new case that should be coming out this year that includes a > general divers first aid kit. I don't know anything about this yet. I was > just told that it is being developed. > > > The company: > EMS GmbH, Elektro-Mechanisch System > Waldstrsse 2 > D-8521 Moehrendorf ( the post number here should be 5 digets. ) > > Tel: 09131/440420 > Fax: 09131/47468 > > Hope that this helps. don P.S. I will try to get the new address and post it.
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