METHOD FOR CREATING A PROSTHETIC LIMB WRIST JOINT WITH THREE DEGREES OF FREEDOM (DOF)

Abstract

ABSTRACT A method (100) for creating a prosthetic limb wrist joint with three degrees of freedom (DOF). Further, the method comprising designing a spherical actuator that mimics human wrist motion using a parallel manipulator mechanism. Further, the method (100) comprising the steps of fabricating four linear actuators arranged at 90-degree angles, each with a rotary encoder for position feedback. Further, the method (100) comprising the steps of constructing a universal joint that connects the linear actuators to an end-effector, enabling multi-directional movement. Further, the method (100) comprising the steps of implementing a microcontroller-based control system using a PID algorithm, with feedback from potentiometers and rotary encoders. Further, the method (100) comprising the steps of testing the integrated wrist joint with a prosthetic arm prototype and calibrating the system for accurate operation.

Specification

Description:
FIELD OF THE DISCLOSURE
[0001] This invention generally relates to the field of prosthetics and, in particular, to a method for designing and fabricating advanced prosthetic limb joints that incorporate spherical motors to achieve enhanced multi-directional movement and improved functionality for users.
BACKGROUND
[0002] The subject matter discussed in the background section should not be assumed to be prior art merely as a result of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also correspond to implementations of the claimed technology.
[0003] The increasing demand for advanced prosthetic devices that closely mimic the natural movement and functionality of human limbs has led to significant advancements , Claims:1. A method (100) for creating a prosthetic limb wrist joint with three degrees of freedom (DOF), the method comprising the steps of:
designing a spherical actuator that mimics human wrist motion using a parallel manipulator mechanism;
fabricating four linear actuators arranged at 90-degree angles, each with a rotary encoder for position feedback;
constructing a universal joint that connects the linear actuators to an end-effector, enabling multi-directional movement;
implementing a microcontroller-based control system using a PID algorithm, with feedback from potentiometers and rotary encoders; and
testing the integrated wrist joint with a prosthetic arm prototype and calibrating the system for accurate operation.

2. The method (100) as claimed in claim 1, wherein the linear actuators are further configured to operate in a coordinated manner to enhance the fluidity of wrist movements by utilizing synchronized control signals from the microcontroller.

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