[abstract] ARTIFICIAL GILL COMPLEMENTS LIQUID BREATHING FOR DIVING TO GREAT DEPTHS, WITHOUT BEING THREATENED BY THE BENDS

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[abstract] ARTIFICIAL GILL COMPLEMENTS LIQUID BREATHING FOR DIVING TO GREAT DEPTHS, WITHOUT BEING THREATENED BY THE BENDS

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Title: [abstract] ARTIFICIAL GILL COMPLEMENTS LIQUID BREATHING FOR DIVING TO GREAT DEPTHS, WITHOUT BEING THREATENED BY THE BENDS
Author: Lande' AJ
Abstract: BACKGROUND: Liquid breathing's promise for deep diving without decompression sickness (blood gases remain normal, sea level, thanks to elevated partial pressures of O2 in the breathing liquid) is limited by the inability of tidal respiration of viscous liquids to dispose of sufficient CO2 (elevated partial pressures of CO2 in the blood cannot be tolerated). High pressure nervous syndrome (HPNS) poses additional problems.MATERIALS AND METHODS: This presentation proposes for discussion the thesis that a membrane oxygenator-like, counter or cross current flow-thru, liquid/liquid artificial gill might complement liquid breathing's inability to dispose of sufficient CO2, and that HPNS might be better understood without high partial pressures of admixed N2, other diving gases or CORESULTS: Kolobow and Gattenoni have demonstrated that only approx.1/5 cardiac output is required to be routed extracorporeally during ECMO for CO2 removal, in order to adequately complement lung preserving one-way O2 insufflation. Therefore, only a doable approx.5 lpm extracorporeal blood flow through the artificial gill would be required to complement a generous approx.25 lpm cardiac output through the liquid breathing lungs, permitting gaseous homeostasis in the depths and near homeostasis during rapid descent and ascent from the deck of a ship. Modifications of standard medical means for gaining access to both respiratory and vascular systems are expected to be employed. CONCLUSIONS: Deep diving without the bends and an improved understanding of HPNS, through liquid breathing complemented by an artificial gill, is proposed for discussion.
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: http://archive.rubicon-foundation.org/3674
Date: 2006

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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