1851 Great Exhibition: Official Catalogue: Class X.: Hugh Thomson
590. THOMSON, HUGH, M.D., Greenock, Scotland — Inventor.
Apparatus intended for fractures of the thigh with the knee bent, or in a straight position, for fractures of the leg. The proposed advantages of this apparatus are:
1st. The power of making suitable extension and counter- extension whilst the knee is bent.
2nd. By means of the pelvic portion, a more advantageous angle is obtained for making counter-extension.
3rd. The bandages containing steel springs, which encircle and grasp the limb, being fixed to the splint, serve for making extension and counter-extension.
4th. Numerous points for making extension and counter-extension are obtained, so that no part may suffer from an undue pressure. The proper angle of flexion of the knee is maintained by the screw for that purpose at the knee-joint, and by pillows placed below the limb.