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Biomedical subjects

I T Brown

Publications and source records attributed to I T Brown.

4 recordsLinked to original sources

Medical technology horizon scanning.

Horizon scanning is becoming particularly important in the medical industry, in the identification and evaluation of emerging technologies. This paper examines the role biomedical engineers may have in horizon scanning new medical technologies and considers whether this is a useful activity for biomedical engineers. A horizon scanning methodology for conducting studies of emerging medical technologies is introduced, consisting of the three main phases of (a) a systematic literature review, in which a set approach is taken to the gathering of information; (b) scanning for publications across a range of different sources; and (c) consideration of the literature in relation to fixed benchmarks to indicate the quality of published information and reported achievements. This methodology has been successfully applied by the authors in a horizon scanning study for the purpose of advising a Government agency on the status of remote patient monitoring technology.

Australia↗

Surface analysis of titanium implants.

Medical grade titanium samples were examined using X-ray photoelectron spectroscopy before and after immersion in various proteins. Additionally, an implant removed from a patient following clinical failure was examined using scanning ion and electron microscopy. The surface of the as-received samples was found to be mainly TiO2, with contaminants of H2O/OH-, calcium and nitrogen which remained after autoclaving. The immersed proteins adhered to the titanium surface, possibly via a Ca-O link. The failed clinical sample was found to be partially fibrously encapsulated with evidence of calcification. Small amounts of TiOOH were detected at the fibrous periphery, supporting the theory of Tengvall and co-workers that in vivo titanium implants are covered in a gel of this material.

Bone and Bones↗

A dedicated microcomputer-based instrument for interval analysis of multicomponent wave forms in single fibre EMG.

We have developed a self-contained microprocessor-based instrument compatible with conventional EMG equipment for the analysis of multicomponent SFEMG wave forms suitable for single operator use. Intervals between 4 components of a MUAP can be analysed using 3 types of threshold or window triggers. The amplitude, duration and polarity of each of these triggers can be varied independently. The instrument is portable and useful in the clinical setting.

Computers↗

A new ambulatory monitoring system for tremor.

We have described a fully portable tremor recording system which allows a patient to carry out his normal day's activities with minimal hindrance. Computer analysis of the recording has enabled the extent of the tremor over prolonged periods to be presented in a format which is easily understandable and which should be useful for the objective assessment of therapy.

Ambulatory Care↗