This application discloses a portable exercise device for flexibility and strengthening. In some embodiments, the device is comprised of one elastic band of surgical tubing or like material and one non-elastic band, with two pairs of looped handles tied to each end of the elastic band. These looped handles can attach to a user's limb without any need for grasping. The non-elastic end of the device can be affixed to an anchor point. The exercise device offers light but adjustable resistance via a resistance modulator, allowing the user to engage in a full range of standing and seated exercises with forces comparable to swimming. In addition, two instances of the device can be combined to engage both the user's hands and feet simultaneously.

A grasp assist system includes a glove having a glove palm and fingers, with the glove worn on a user's hand. A sensor measures flexion of the glove fingers, and thus a change of position and/or attitude of the fingers is determined. Finger saddles at least partially surround a phalange of a respective one of the user's fingers. The system uses one or more tendon actuators to pull on flexible tendons. Each tendon connects to a respective finger saddle. A controller is in communication with the actuators and sensor(s). The glove may use feedback from optional contact sensors to adjust tension, and may have a built-in restorative force. In executing a control method, the controller selectively applies tension to the tendons in response to finger flexion, via the tendon actuators, at a level sufficient for moving the user's fingers when the user executes a hand maneuver.

A method for calibrating and executing a rehabilitation exercise for a stroke-affected limb of a stroke patient is disclosed, the method comprising the steps of providing a haptic device for an able limb of the stroke patient to manipulate to perform a calibration action to result in a first position of the haptic device, and providing the haptic device for the stroke-affected limb to manipulate to perform the calibration action to result in a second position of the haptic device. The method further comprises the steps of moving the haptic device coupled with the stroke-affected limb from the second position towards the first position until a predetermined counterforce is detected, indicating an extreme position for the stroke-affected limb using the haptic device, and calibrating the haptic device with the extreme position such that during the rehabilitation exercise, the haptic device is prevented from moving beyond the extreme position.

One example provides a system for selectively restricting motion of an articulable joint, the system comprising a base having a first portion configured to be positioned at a first side of the articulable joint and a second portion configured to be positioned at a second side of the articulable joint, a clutch mechanism comprising a flexible portion having a first end coupled to the first portion of the base and a second end coupled to the second portion of the base, and a guide coupled to the base, the guide comprising a support surface that supports the flexible portion between the first end and the second end as the flexible portion moves during articulation of the articulable joint, the support surface of the guide comprising an angular transition in a dimension transverse to a travel direction of the flexible portion as a function of distance along the travel direction.

A wearable hand rehabilitation system includes a base, multiple actuating units configured to the base, hand assistive unit and multiple sheaths connected with the actuating units and the hand assistive unit. The base is composed of a cover and a base plate to create a space. The cover is provided with a perforation closed to the middle of the cover to allow every sheath to pass through the perforation, so as to connect with actuating units. When a user put on the wearable hand rehabilitation system, the user could move or rotate his arm to make his five fingers to grab something. The usage of the wearable hand rehabilitation system could evaluate the hand rehabilitation condition of the user.

A therapy device for treating left-side and right-side body parts comprises a single-piece base plate having a left surface and a right surface, a moving segment having a support surface for a left- or right-side body part to be treated, and a drive for pivoting the moving segment back and forth relative to the base plate. The moving segment is fastened to the base plate so as to be pivotable around an axis of rotation. The left surface of the base plate is shaped for supporting thereon a left-side body portion assigned to a left-side body part to be treated. The right surface of the base plate is shaped for supporting thereon a right-side body portion assigned to a right-side body part to be treated.

Disclosed is a hand and arm support assembly for use by a user or patient to rehabilitate a hand of the patient. The hand and arm support assembly includes a hand actuator assembly and a forearm rest assembly. The hand actuator assembly provides a support for a hand engagement assembly having a housing and hand actuator rod engagement members projecting upwards therefrom to engage the hand of the patient. The housing is rotatable to accommodate the position of the patient's hand and the rod engagement members are adapted to travel along slots towards and away from one another. The forearm rest assembly includes a first carriage and a second carriage to support the forearm and elbow of the patient. The first and second carriage can pivot about an axis relative to the housing to further accommodate the position of the patient's arm and elbow.

The described knee rehabilitation device can include any suitable component. In some implementations, however, it includes a sitting surface that is configured to support a user; a knee arm that comprises a leg coupling mechanism, that is pivotally coupled to the rehabilitation device, and that is configured to pivot through a range of motion; and a drive mechanism that is configured to force the knee arm through the range of motion. In some cases, the drive mechanism includes a first hard stop that prevents the knee arm from extending past a first set point, and the drive mechanism further includes a second hard stop that prevents the knee arm from being retracted past a second set point. In some cases, the device is further configured to be programmed to electronically limit the knee arm's range of motion. Other implementations are discussed.

A powered orthotic device for use with a limb having at least two joints includes at least two brace sub-assemblies. The first brace sub-assembly includes a first powered actuator assembly that receives a first sensor signal from a sensor selected from a group consisting of an electromyographic sensor, an inertial measurement unit, and combinations thereof. The first powered actuator assembly applies a first force for driving sections positioned with respect to a first joint to move relative to one another. The second brace sub-assembly includes a second powered actuator assembly that is configured to receive a second sensor signal from a sensor selected from a group consisting of an electromyographic sensor, an inertial measurement unit, and combinations thereof. The second powered actuator assembly applies a second force for driving sections positioned with respect to a second joint to move relative to one another. The first force and the second force are based on the first sensor signal or the second sensor signal.

One example provides a system for selectively restricting motion of an articulable joint, the system comprising a base having a first portion configured to be positioned at a first side of the articulable joint and a second portion configured to be positioned at a second side of the articulable joint, a clutch mechanism comprising a flexible portion having a first end coupled to the first portion of the base and a second end coupled to the second portion of the base, and a guide coupled to the base, the guide comprising a support surface that supports the flexible portion between the first end and the second end as the flexible portion moves during articulation of the articulable joint, the support surface of the guide comprising an angular transition in a dimension transverse to a travel direction of the flexible portion as a function of distance along the travel direction.