Acknowledgements

So many people have helped with this thesis, that it would be impossible to name them all.

I would especially like to thank Bert Andersson M.D. Sahlgrenska Hospital, Gothenburg and Johan Virgin M.Sc. Södersjukhuset, Stockholm for their co-operation in chapter 4 respective chapter 5.

Thanks must also go to Jonas Johnson M.Sc. manager of Development Department, AB Astra Tech, who has done a marvelous job on the experimental and computerized part of the thesis.

Also thanks to Claes-Göran Löwenborg B.Sc. Development Department, AB Astra Tech, who has helped in making the prototypes for the double and single pump.

Thanks to Gerhard Miksche Ph. D. Manager, Patent and Trade mark Department, AB Astra, who's burning interest in history has been of invaluable help. He did not only find relevant historical references, but he did also identify various research trends in the past.

I would also like to thank Professor Vilmos Török, The Royal Technical Institute in Stockholm, for his ideas on the technical part of this thesis.

Last, but by no means least, my thanks to the Department of Clinical Physiology Södersjukhuset, Stockholm, under the direction of Ass. Prof. Sture Bevegård.

Stockholm, Sweden
1986 Stig S Lundbäck

Acknowledgement Addendum

I would especially like to thank Anders Edfors M.Sc and Jonas Johnson M.Sc for the computerized parts of the thesis as well as the design and implementation of the hypertext markup.

Special thanks to Bo Wistrand M.Sc.M.D  for the extreme effort he put into making the thesis more readable.