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International Journal of Advanced Engineering Application

ISSN: 3048-6807

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Development and Kinematic Study of a Spring-Integrated Two-Link Prosthetic for Canine (Indian Pariah) Limb Support

Author(s):Deepshikha sharma¹, Hitendra Vaishnav²

Affiliation: 1Goenka Public School, Vasant Kunj

Page No: 15-28

Volume issue & Publishing Year: Volume 2 Issue 12 , Dec-2025

Journal: International Journal of Advanced Engineering Application (IJAEA)

ISSN NO: 3048-6807

DOI: https://doi.org/10.5281/zenodo.17949378

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Abstract:
Lower limb amputation in dogs is often a result of trauma, tumors, or congenital deformities which affects mobility and quality of life. Current prosthetic solutions are generally limited in their adaptability and seldom account for the biomechanics of partially amputated limbs. This study details the design and validation of a spring-integrated, two-link prosthetic limb that returns limb length while incorporating some dynamic energy storage and release component to replicate function similar to natural tendon/ligament systems. The results begin with modeling of CAD and the construction of prototypes using light PVC rods and 3D printed component parts made of PLA for rigid elements, TPU for flexible/ compliant contact surfaces, and stainless-steel tension springs for energy return. Bench validation including both static and dynamic loading demonstrated notable similarity between calculated results and bench validation findings. Initial and sustained loads were very similar for the forelimb 177N and compression of the spring was 24.7mm, close to the predicted 25mm, which means the prosthesis was storing 2.2 J of elastic energy per stride. The purpose of prosthesis design and prototypes was to utilize low-cost, available materials, while maintaining structural safety with stresses below the material yield limits. This work demonstrates that affordable, biomechanically informed prostheses can be developed for canine patients, addressing the limitations of socket-based devices. By integrating dynamic spring assistance with scalable fabrication methods, this approach provides a clinically relevant pathway to improving rehabilitation and quality of life for amputee dogs.

Keywords: Prosthetic for Canine , Indian Pariah

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