University College London

National Research Development Corporation

Michael E Dewar

Lawrence Evan Carlson

Kenneth E Ackerley

Lindsay K Newcombe

The present invention provides an apparatus () for attaching a prosthetic limb to the bone of a patient, the apparatus comprising a proximal component () to mount to a bone implant, a distal component () to mount to a prosthetic limb, and a coupling body () coupling together the proximal and distal components () with freedom to articulate when, in use, a bending and/or torsional force is applied to the prosthetic limb, only when the force exceeds a threshold level, whereby the force may be accommodated by articulation within the attachment apparatus (). The attachment apparatus () thus functions as a fail-safe articulation mechanism protecting the bone of the patient.

Prosthetic limb attachment

A fracture reduction apparatus comprises a first holder for holding first set of bone fixation pins, and a second holder for holding a second set of bone fixation pins, the first and second sets of bone fixation pins being located, in use, with the site of the fracture intermediate them. Each of the holders is rotatable about a respective set of three orthogonal axes, the three axes of each set intersecting one another at a respective point located in the bone, the two respective points being spaced from one another along the longitudinal axis of the bone.

Fracture reduction apparatus

A goniometer for use in measuring angular movements of joints of a human or animal body comprises an elongate body and a plurality of mercury-in-rubber sensors extending longitudinally of the body at locations spaced from one another around the body. The electrical resistance of the sensors varies with varying strain thereof, and a circuit is connected to the sensors for converting variations in the resistance into a measure of the relative angular disposition of the ends of the body.

Growing community of inventors

London, United Kingdom

Michael E Dewar