Finger Rehabilitation Guidance Device

This technology is a finger rehabilitation guidance device featuring a 1-DOF linkage mechanism that includes supports coupled to the first and second phalanges of a finger, precisely guiding finger movement through a combination of multiple links, revolute joints, and prismatic joints.

Existing finger rehabilitation devices require complex control algorithms and multiple actuators, leading to high costs. Furthermore, 1-DOF linkage devices have faced issues such as an increased number of mechanical components and limitations in layout modifications due to joint position changes.

This technology proposes a link structure incorporating multiple prismatic and revolute joints, allowing for flexible layout changes within the plane of motion, and utilizes a pin-in-slot joint to simplify mechanical elements. This enables the efficient application of linear or rotary actuators while optimizing the number of parts. It can be used for finger rehabilitation in stroke and hand injury patients, and by inducing precise joint movement with a single actuator, it reduces device costs and improves accessibility to rehabilitation.

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Key Features:

• Supports coupled to the first and second phalanges of the finger, respectively
• 1-DOF linkage structure composed of a combination of multiple links, revolute joints, and prismatic joints
• Pin-in-slot joint that simplifies mechanical elements and optimizes the number of parts
• Drive unit allowing for the selective placement of linear or rotary actuators