This chair is clearly labelled as a Dupont Optimo Confort. It has a retail value when new of approximately £2400 and we believe it is distributed in the UK by Remploy Healthcare.
I have found some details that look correct at this website here but you will need to come into the Warehouse in Blatchford Road to view it.
The details are as follows but are not confirmed:
Designed by leading French company Dupont Medical, the unique tilting mechanism of the chair provides complete stability, whatever the incline of the seat. The innovative, patented frame design also allows the width of the seat to be altered, with a minimum and maximum setting of 39cm and 51cm. Complete with removable, height variable full length padded arm rests, padded calf supports and a three-way adjustable head support that comes as standard, additional flexibility and improved comfort is provided by the chair's elevating leg rests that move in conjunction with the seat so that no further re-adjustment is necessary.
The price for this chair is just £300, it is is good condition and includes a full Cosy Toe cover.