Abstract:
A gait orthotic system includes a balance aid (120) and a gait orthotic device (100). The gait orthotic device (120) has a rigid attachment mechanism (125, 130) configured to securely and releasably couple the balance aid (120) to the gait orthotic device (100). When the balance aid (120) is coupled to the gait orthotic device (100), the gait orthotic device (100) is supported in a standing position so that a user of the gait orthotic device (100) is able to use his/her hands freely. When the balance aid (120) is not coupled to the gait orthotic device (100), the user is able to use the balance aid (120) for locomotion. In certain embodiments, the balance aid (120) is a forearm crutch, a walker or a cane, while the rigid attachment mechanism (125, 130) is a clamp with an over-center latch (510).
Abstract:
An ambulatory exoskeleton can be selectively operated in at least two different modes, with one mode constituting an unworn propulsion mode, used when the exoskeleton is not worn by a user, and another mode constituting a default or worn propulsion mode, used when the exoskeleton is worn by a user. With this arrangement, a physical therapist, or other operator, wishing to move an - unworn exoskeleton, can balance the unworn exoskeleton, while simultaneously utilizing a control system and actuators; of the exoskeleton to propel the unworn exoskeleton. Therefore, the exoskeleton walks by taking steps forward, as commanded by the operator using any of a plurality of input arrangements, while the operator balances and steers the exoskeleton by physically guiding the exoskeleton using a handle or other interaction surface of the exoskeleton.
Abstract:
A lower extremity orthosis is configured to be coupled to across at least one joint of a person for gait assistance and can incorporate knee, thigh, hip and ankle/foot assistive orthotic devices which can be used in various combinations to aid in the rehabilitation and restoration of muscular function in patients with impaired muscular function or control.
Abstract:
A lower extremity orthotic control system determines a movement desired by a user, particularly with a user employing gestures or other signals to convey or express their intent to the system, and automatically regulates the sequential operation of powered lower extremity orthotic components. In a particular application, the orientation of a stance leg is used to determine when the user wants to initiate a step, as well as when the user is in a safe position from which to take a step. The invention has particular applicability for use in enabling a paraplegic user (200) to walk through a controlled operation of a human exoskeleton (100) coupled to the user's lower limbs (205). A controller (220) receives inputs regarding a motion desired by the user (200), determines the desired motion and then controls the movement of the user's legs or limbs (205) through actuation of the exoskeleton (100).
Abstract:
A powered orthotic system, such as an exoskeleton (100), is employed for overground rehabilitation purposes by adapting and adjusting to real-time needs in a rehabilitation situation whereby the system can be initially controlled to perform gait functions for a wearer (109) based on a predetermined level of assistance but the predetermined level of assistance can be varied, based on one or more rehabilitation parameters or specific needs of the wearer (109) undergoing therapy, through the application and adjustment of appropriate variables associated with operation of the system.
Abstract:
An exoskeleton includes a control system which incorporates a feedback system used to establish and communicate orthosis operational information to a physical therapist and/or to an exoskeleton user. The feedback system can take various forms, including employing sensors to establish a feedback ready value and communicating the value through one or more light sources which can be in close proximity to joints of the exoskeleton joints.
Abstract:
An exoskeleton (100; 200) can be reconfigured, adjusted and/or controlled on the fly utilizing devices which fall into three categories, particularly including a swappable unactuated leg, lockable transverse and coronal hip rotations, and software controlled free joints. More specifically, the first device allows for the creation of a modular joint system in which individual exoskeleton joints (230; 231; 232; 233; 249) or limbs (112L; 112R) can be changed or swapped to optimize an exoskeleton for a particular user. The second device is concerned with mechanically controlling, such as locking and unlocking, joints thereby allowing, for example, an exoskeleton leg to pivot or not pivot in an axis that is not actuated.