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SURGERY AND TRANSPLANTATION 
aware of the time that's involved in clinical 
studies. And we do expect to be able to move di- 
rectly to clinical studies because of the limita- 
tions of assessing effectiveness of equipment in 
animal models. I don't think that resources are 
at all affected in terms of projected clinical 
studies. 
Dr. Clark : We have been studying two com- 
mercial membrane oxygenators for 2 years. But 
we have purposely done our studies with the 
dog because of its well known propensity to the 
problem of pump lung. Has the dog been used 
with the Dow lung? 
Dr. Kaye: Dutton and co-workers of CVRI 
published the results of their work with dogs in 
the ASAIO in 1971. The results were quite com- 
parable to those of studies with the calf. We 
have not used the dog ourselves. ' 
Jeri Dobbs, University of Oregon Medical , 
School: What type of bubble oxygenator did | 
you use, and have you compared it with other | 
membrane oxygenators ? ^ 
Dr. Kaye: We used the bag, the Travenol j 
bubble oxygenator. We have not compared this ! 
membrane in our laboratories to other types of 
membrane oxygenators. 
