A simple photo-electric method for the estimation of blood loss during surgery
Summary: A rugged version of the sensitive machine described by Gardiner and Dudley (1962) has been constructed and has been in use for over two years without incident. It has proved possible for it to be operated by nurses and theatre technicians without supervision and with reproducible results. Failure of the electrical unit and meter has not occurred. © 1966 John Sherratt and Son Ltd.