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Adaptive prosthesis – a new concept in prosthetic knee control

Published online by Cambridge University Press:  27 April 2005

Saeed Zahedi
Affiliation:
Chas. A. Blatchford & Sons Ltd., Lister Rd. Basingstoke, RG22 4AH (UK).
Andrew Sykes
Affiliation:
Chas. A. Blatchford & Sons Ltd., Lister Rd. Basingstoke, RG22 4AH (UK).
Stephen Lang
Affiliation:
Chas. A. Blatchford & Sons Ltd., Lister Rd. Basingstoke, RG22 4AH (UK).
Ian Cullington
Affiliation:
Chas. A. Blatchford & Sons Ltd., Lister Rd. Basingstoke, RG22 4AH (UK).

Abstract

The aim of the project has been to provide a prosthesis which is capable of adapting to different modes of locomotion whilst optimising the hip power available to the user.

The prosthesis provides stance control ranging from minimal resistance to a yielding lock, capable of detecting level walking, ramp descent, stair descent, standing and instances of stumble. The stance resistance is set to preprogrammed levels for each mode, which matches the user's level of control.

10 amputees participated during the early development trails of the Adaptive Prosthesis for project validation. 7 used the limb for over 3 months and 3 for over 2 years. Early feedback indicated enhanced control and increased comfort and safety during ambulation and manoeuvring various terrains. Minor modification to increase reliability of cabling was also made.

Type
Research Article
Copyright
© 2005 Cambridge University Press

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