Mailing List Archive Mailing List Archive
Kevin wrote: >What would happen if a (or possibly two) catheter(s) were inserted into an >artery that would send it through an oxygenator? As long as the oxygenator >removed CO2, you wouldn't feel the need to breathe. Since you're not >breathing, you don't need a diluent to bring the total pressure of an >inspired gas high enough to allow your chest muscles to draw the gas into >your lungs against the ambient pressure against your thorax. There are the >problems of preventing clots from being circulated, but I believe that >problem has been somewhat solved for surgical procedures. A similar device is descriped in "Le monde des oceans" from Jacques- Yves Cousteau. This device, called "Homo Aquaticus" are substitution lungs that would be kept on the hip. If it become ever built, it will allow a man or a woman to descend to any depth and come back without needing to decompress. The blood of the diver will be pumped through a highly riched oxygen environment. The gaz exchange will be done through semi-permeable membranes. A sensor will mesure the levels of dissolve gaz in the tissues and a valve (?) will mofigy the oxygen flow, while ensuring a stable level of CO2. A drawing is presented above this explanation (in the book). The blood of the diver enters in the box, it circulates through an exchanger (?) and it is pumped back to the diver. An O2 and CO2 analyser analyse the blood at the exit side of the box. Some of the blood is pumped inside the box, where O2 and CO2 are adjusted and sent back to the exchanger. Interrestingly enough, there is a pressure regulation chamber shown on the diagram. This chamber is connected to the oxygenated liquid reservoir. The motor and the analyser are powered by a battery pack. Micheal... MTHERRIEN@sh*.mo*.mm*.sh*.co*
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]