Abstract
A new intracranial pressure transducer, based on the miniature pneumatic nozzle-flapper amplifier with negative feedback, is described. The problem of steady-state accuracy of intracranial pressure measurement in relation to the stiffness of the transducer membrane and dura mater is also discussed. The transducer has successfully undergone clinical testing on 61 patients and proved to be practical and convenient. Its manufacture is under way.
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