Abstract: A method and appliance for the application of a continuous, low level force tending to oppose rotational movement of the hand about the carpus. This opposing force tends to relieve contractatures of the transverse carpal, volar carpal, and intra carpal ligaments over time, thus relieving the pain caused by carpal tunnel syndrome and correcting altered kinematics associated therewith. This opposing force tends to increase the carpal volume. According to the principles of the invention, a dynamic splint appliance is described which provides free movement of the patient's wrist with minimal impediment during activities of daily living, both at home and at work, while simultaneously applying this opposing force.

Abstract: The present invention provides an orthotic appliance for the carpus of a human hand for the treatment of carpal tunnel syndrome using co-dynamic, rather than traditional static or dynamic, techniques. The appliance may apply a 2 pound dorsally directed force about the region of the pisiform bone in the neutral carpal position of a human hand upon co-contraction of the hand and up to 8 pounds dorsally directed during arc of motion in carpal flexion, as the wrist and hand is encouraged to actively move in all planes of motion without negatively affecting the normal activities of daily living. The appliance may comprise a biasing structure for applying the dorsally directed force and a base structure for maintaining the biasing structure in its proper configuration during normal hand motion.

Abstract: A method and appliance for the application of a continuous, low level force tending to oppose rotational movement of the hand about the carpus. This opposing force tends to relieve contractatures of the transverse carpal, volar carpal, and intra carpal ligaments over time, thus relieving the pain caused by carpal tunnel syndrome and correcting altered kinematics associated therewith. This opposing force tends to increase the carpal volume. According to the principles of the invention, a dynamic splint appliance is described which provides free movement of the patient's wrist with minimal impediment during activities of daily living, both at home and at work, while simultaneously applying this opposing force.

Abstract: This invention is a diagnostic device for measuring the extensibility of certain key carpal ligaments so as to determine the tendency of the subject to carpal tunnel damage. It consists of a structure to secure the arm and hand in a predetermined position on a stationary platform and the metacarpals of the hand in a predetermined position on a carriage moveable relative to the platform, so that the radius and ulnar bones of the forearm may be aligned in a fixed plane parallel with the moveable plane of the metacarpals of the hand. Once secure, a force is applied to the carriage in a dorsal direction perpendicular to the metacarpal plane, so as to measure the metacarpal glide. This force places stress on the ligaments of the volar joint between the proximal and distal carpal row, and resulting displacement, tension, and creep strength values are measured by a load cell and a lineometer.