Surgical robot arm

Surgical robot arm with 2-axis rotation using a ball joint and disk wires

This technology features a surgical robot arm design that implements 2-axis (X and Y) rotation by placing a ball joint at the center of the surgical gripper and controlling disk wires connected to three points on the circumference of the gripper support disk via a motor drive unit.

Conventional surgical robot arms suffer from technical limitations such as complex joint structures that result in low rigidity, difficult maintenance in the event of failure, and complex control for precise multi-axis rotation.

This technology fixes the center of rotation using a center bar and ball joint, performs 2-axis rotation by independently controlling three disk wires with motor drive units (bolt-nut type), and includes a ball joint locking control function using a support member.

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Key Features:

• A gripper support disk that provides fixed support at the lower part of the surgical gripper, and a center bar connected to the center of the lower part of the support disk.
• A ball joint connected to the center bar to allow the support disk to rotate on the X and Y axes.
• Disk wires connected to and supporting three points on the circumference of the gripper support disk, symmetrically arranged around its center point.
• Motor drive units connected to each disk wire to move them up and down, thereby rotating the support disk on two axes.

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