Abstract: An optical coherence tomography scanning system traverses its respective scan pattern quickly, typically completing an entire two-dimensional frame faster than a conventional raster scanner completes one raster line segment. To traverse the scan pattern quickly, the system takes fewer A-scans per length of scan pattern than a conventional OCT scanner. To compensate for the sparsity of the sample points along the respective scan line segments, and for gaps between respective line segments of the trajectory, the system acquires and combines several partially overlapping frames for each study.

Abstract: A compact, powered, orthotic device for pediatric use enables the user to control relative motion of the upper arm and the forearm about the elbow and grasping motions of the thumb and fingers. The device is powered by a set of battery-driven, backdrivable linear actuators that are positioned remotely from an arm of the subject. Control of motion of the device by the subject occurs by means of electromyographic signals from a sensor array in contact with skin on the arm of the subject. The sensors in the sensor array may be held in place on the forearm, on the upper arm, or at any other convenient location on the arm.