Shoulder Rehabilitation Robot

Shoulder Rehabilitation Robot

This technology is a link-based rehabilitation exercise assistance device that converts the rotational force of a drive shaft into a linkage and crank-connecting rod structure to implement shoulder flexion/extension and abduction/adduction movements.

Existing rehabilitation devices are often limited to specific movements or fail to account for scapular plane motion, making natural shoulder rehabilitation difficult and complicating setup due to the use of multiple drive units.

This technology transmits power from a single motor through a four-bar linkage and crank-connecting rod mechanism to selectively implement flexion/extension and abduction/adduction exercises centered on the scapular plane. It can be applied to rehabilitation training, gait assistance, and medical/welfare services, allowing for selective shoulder flexion/extension and abduction/adduction exercises based on the shoulder plane, as well as the scapular movement known to be necessary prior to shoulder rehabilitation in clinical settings.

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Key Features:

• A forearm support unit provided on the slider, where the user's forearm is positioned.
• A drive unit that rotates the drive shaft using externally supplied power.
• A slider configured to move linearly along the longitudinal direction of a guide bar, with its rear end rotatably connected to the front end of a connecting rod, moving linearly along the guide bar through the reciprocating motion of the connecting rod.
• A third link bar whose lower front end is rotatably connected to the lower front end of a second link bar, and whose upper rear end is rotatably connected to the rear side of the drive unit, rotating in conjunction with the second link bar.