John McKinley (pioneer in prosthetics)

John McKinley was a pioneering engineer and inventor known for advancing prosthetic technology in the 19th century. He dedicated his career to improving artificial limbs, making them more functional and comfortable for users. McKinley's innovations included better joint mechanisms and materials, which enhanced mobility and strength for amputees. His work helped transition prosthetics from simple replacements to more sophisticated devices that closely mimicked natural limb movements, significantly improving the quality of life for individuals with limb loss. McKinley's contributions laid important groundwork for modern prosthetic design and engineering.