Kwok Wai Samuel Au

Title: **Inventor Kwok Wai Samuel Au: Pioneering Powered Prosthetic Innovations**

Introduction

Kwok Wai Samuel Au is an accomplished inventor based in Mountain View, California. He has made significant strides in the field of biomechanics, with a total of seven patents to his name. His work primarily focuses on developing advanced prosthetic devices, which enhance mobility and improve the quality of life for amputees.

Latest Patents

One of his most notable inventions is the powered ankle-foot prosthesis, designed to provide human-like power at terminal stance, thus enhancing the metabolic walking economy for amputees compared to conventional passive-elastic prostheses. This innovative prosthesis features a unidirectional spring that works in parallel with a force-controllable actuator with series elasticity to deliver high mechanical power and net positive work, mimicking normal human walking.

Another significant invention is the artificial ankle-foot system, which incorporates spring, variable-damping, and series-elastic actuator components. This system comprises a curved leaf spring foot member that connects to a flexible elastic ankle member, allowing for rotation at the ankle joint. An actuator motor applies torque to the ankle joint to orient the foot while not in contact with the ground, while a catapult spring stores and releases energy to propel the wearer forward. The system also features a ribbon clutch to limit foot member rotation and a controllable damper to lock the ankle joint or absorb mechanical energy as needed during different phases of a walking cycle.

Career Highlights

Kwok Wai Samuel Au has contributed his expertise to prestigious organizations, including the Massachusetts Institute of Technology (MIT) and Intuitive Surgical Operations, Inc. His experience in these institutions has allowed him to push the boundaries of prosthetic design and functionality, making significant contributions to the field.

Collaborations

Throughout his career, Au has had the opportunity to work alongside notable individuals in the field of biomechanics, including Hugh Miller Herr and Daniel Joseph Paluska. These collaborations have further enriched his understanding and approach to innovative prosthetic solutions.

Conclusion

Kwok Wai Samuel Au stands out as a remarkable inventor making strides in the field of powered prosthetics. His inventions not only showcase his technical ingenuity but also highlight his commitment to improving the lives of those with limb loss. With a promising career driven by innovation, Au continues to pave the way for advancements in prosthetic technology.