A microprocessor controlled scanning polarograph for solution labile compounds

A microprocessor controlled scanning polarograph for solution labile compounds

Introduction The progressively greater number of analytical tests required on a sample and the larger number of samples required for significance of the data demand higher productivity to minimise increases in labour and equipment costs. At the same time, the precision and accuracy of the data must be maintained at the highest possible levels to assure validity of the results. Within the author...

A microprocessor-controlled anaesthetic vaporizer.

A microprocessor-controlled anaesthetic vaporizer is described. Fresh gas is mixed in the correct proportions using two pulsed solenoid valves and a proportion of this passes through a third pulsed solenoid valve and is bubbled through liquid halothane. The temperature of the liquid agent is measured and the pulse frequency is modified to give the correct vapour concentration for the set flow r...

Microprocessor-Controlled Prostheses for the Lower Limb

When Policy Topic is covered Microprocessor knees that have stance-phase or swing-and-stance phase microprocessors may be considered medically necessary only for those patients who meet ALL of the following criteria:  Patient is an appropriately active community ambulatory; AND  Patient has undergone extensive evaluation using the Hanger Prosthetics & Orthotics Patient Assessment Validation E...

A microprocessor-controlled gas mixing device.

This paper describes the use of solenoid valves for the production of binary gas mixtures. The system is controlled by a microprocessor and is capable of delivering accurate flows and concentrations of gases over the ranges commonly used in anaesthesia. Since the flow produced by the valves is pulsatile, a system for mixing the gases and smoothing the pulses is described. A back pressure regula...

A microprocessor-controlled film balance system