Abstract: A powered orthotic device includes a brace, a finger engagement member, a thumb engagement member, and a hand actuator. The powered orthotic device includes an affixment member affixed to the brace, and a finger carrier assembly with a finger carrier to engage the fingers of the wearer, as well as a locking mechanism configured to be removably attached to the affixment member. The wearer dons the orthotic device, without assistance from another, by placing the set of fingers into the finger carrier and using a free hand of the wearer to affix the locking mechanism to the affixment member.

Abstract: A powered orthotic device includes a brace, a finger engagement member, a thumb engagement member, and a hand actuator. The powered orthotic device includes a locking mechanism affixed to the brace, and a finger carrier assembly with a finger carrier to engage the fingers of the wearer, as well as an affixment member configured to be removably attached to the locking mechanism. The wearer dons the orthotic device, without assistance from another, by placing the set of fingers into the finger carrier and using a free hand of the wearer to affix the affixment member to the locking mechanism.

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.

Abstract: A grasp control system assists an operator with a grasping movement task. A movement intention signal is monitored for a grasping movement muscle of the operator. A volitional operator input for the grasping movement task is identified from the movement intention signal. One or more movement motors are operated based on the volitional operator input to perform the grasping movement task as a chain of motion primitives, wherein each motion primitive is a fundamental unit of grasping motion defined along a movement path with a single degree of freedom.

Abstract: A powered orthotic device includes a brace, a finger engagement member, a thumb engagement member, and a hand actuator. The powered orthotic device includes a locking mechanism affixed to the brace, and a finger carrier assembly with a finger carrier to engage the fingers of the wearer, as well as an affixment member configured to be removably attached to the locking mechanism. The wearer dons the orthotic device, without assistance from another, by placing the set of fingers into the finger carrier and using a free hand of the wearer to affix the affixment member to the locking mechanism.