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This is a multi-part message in MIME format. --------------181125BF1BBE Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit This guy is a doctor who is also a cave diver and involved in a group similar to WKPP, and he says: --------------181125BF1BBE Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Return-Path: <ajranz@fu*.ne*> Delivered-To: kirvine@sa*.ne* Received: (qmail 23799 invoked from network); 24 Nov 1999 16:42:36 -0000 Received: from encke.fuse.net (216.68.1.56) by mail1.safari.net with SMTP; 24 Nov 1999 16:42:35 -0000 Received: from A (archon-786.fuse.net [216.68.31.24]) by encke.fuse.net (8.9.3/8.9.3) with SMTP id LAA22578 for <kirvine@sa*.ne*>; Wed, 24 Nov 1999 11:42:39 -0500 (EST) Message-Id: <4.1.19991124091749.00911ad0@po*.fu*.ne*> X-Sender: ajranz@po*.fu*.ne* X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Wed, 24 Nov 1999 11:40:34 -0500 To: kirvine@sa*.ne* From: Art Ranz <ajranz@fu*.ne*> Subject: Scooter and Ventilation BS In-Reply-To: <383B0F01.2614@sa*.ne*> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" George, I have been using the scooter that you fixed with the clamps on the motor housing. It has been running like a champ for the last 6 months, I have just forgotten to write and thank you. Great work. I have been sitting on my hands reading this ventilation rag with a regulator, but I can't any longer. There are many good intentioned people with no practical experience spouting off. I know the flow rates are not ideal and the potential for injury is there, but please ventilate me with O2 even if it is not perfect. I will take O2 with the potential of a lung expansion injury vs. brain damage any day. To prove that it works, I ventilated an anesthetized patient with a ScubaPro Mk15/250. This is a patient who is apneic, just like a respiratory arrest. Lots of wasted gas due to the exhalation valve venting lots of gas, but I was able to give very respectable tidal volumes with this setup. I could not measure it without a flow meter, but the chest rises significantly and breath sounds were good. I would have a hard time imagining how one could overinflate a lung with the small cracking pressure of the exhalation side of this regulator. I think the doc that was worried about the flow rates and pressures is assuming a regular mask with no automatic venting like the exhalation side of a scuba regulator. This system sure beats 17%. Conclusion: It can be done, and done quite well. I think anyone could do this, especially a paramedic with their good airway skills. Most divers could be taught this too, since I think most divers have above average motor skills. Somehow, however, I can't see the OW institutions teaching this!! You can post this if you want, I just hate all the bounces. Art --------------181125BF1BBE-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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