Dexterity assessment

An assessment of e.g. surgeons dexterity uses linear 4 and/or angular 5 accelerometers, possibly on an arm band 1, at a subjects arm location e.g. the elbow or above the scrub-line. Acceleration signal analysis at processor 7, 11 identifies discrete movements, for each of which a kinetic energy is e...

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Bibliographic Details
Main Authors Jonathan Rees, Caroline Hargrove, Georgina Kirby, Karl Surmacz, Marco Gallieri, William Reynolds
Format Patent
LanguageEnglish
Published 02.01.2019
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:An assessment of e.g. surgeons dexterity uses linear 4 and/or angular 5 accelerometers, possibly on an arm band 1, at a subjects arm location e.g. the elbow or above the scrub-line. Acceleration signal analysis at processor 7, 11 identifies discrete movements, for each of which a kinetic energy is estimated via a model stored in memory 6, 12. A measure of dexterity is formed in dependence on the kinetic energies. The dexterity measure may be a count of movement energies above, below or between predetermined thresholds, possibly decided based upon e.g. a surgical task to be performed. The model stores the mass and inertia about a rotation axis of e.g. the forearm, from which the energies are estimated, the accelerometer location being known or input. Discrete movement events may be identified by vector summation of acceleration data, producing velocity data analysed to identify the starts and ends of movements.
Bibliography:Application Number: GB20160017389