A protocol for the measurement of downtime of medical equipment.

The downtime of medical equipment has become an issue of increasing concern within the National Health Service over recent years. No protocol exists to formalize measurement and recording of downtime. A survey of 129 purchasers and providers of radiotherapy maintenance services at 68 establishments in the UK was undertaken, with replies received from 66. Information was gathered on 16 factors affecting the measurement of downtime of radiotherapy equipment. The results of the survey are presented and analysed. The conclusions drawn demonstrate the practicality of introducing a protocol for the measurement of downtime and availability. A draft protocol has been developed from the results of the survey.