Virtual prototyping of a semi-active transfemoral prosthetic leg

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Virtual prototyping of a semi-active transfemoral prosthetic leg.

This article presents a virtual prototyping study of a semi-active lower limb prosthesis to improve the functionality of an amputee during prosthesis-environment interaction for level ground walking. Articulated ankle-foot prosthesis and a single-axis semi-active prosthetic knee with active and passive operating modes were considered. Data for level ground walking were collected using a photogr...

متن کامل

Virtual Constraint Control of a Powered Prosthetic Leg: Experiments with Transfemoral Amputees

Powered prosthetic legs could significantly improve mobility for lower-limb amputees, but the performance and clinical viability of these devices are currently limited by complex control systems that independently control different joints and time periods of the gait cycle. Recent efforts have been made to address these challenges with a unifying control model used by recent bipedal robots, in ...

متن کامل

Foot Clearance during Free Swing of a Transfemoral Prosthetic Leg: Four-Bar Knee vs. Ankle Dorsiflexion

Polycentric knees are frequently used in transfemoral prostheses because they provide added stability in stance phase and relative ankle dorsiflexion in swing phase. Despite this relative ankle dorsiflexion, patients still complain of inadequate toe clearance even with polycentric knees. We hypothesize that active ankle dorsiflexion via a knee-ankle coupling provides more toe clearance than pro...

متن کامل

Kinematic and kinetic comparisons of transfemoral amputee gait using C-Leg and Mauch SNS prosthetic knees.

The C-Leg (Otto Bock, Duderstadt, Germany) is a microprocessor-controlled prosthetic knee that may enhance amputee gait. This intrasubject randomized study compared the gait biomechanics of transfemoral amputees wearing the C-Leg with those wearing a common noncomputerized prosthesis, the Mauch SNS (Ossur, Reykjavik, Iceland). After subjects had a 3-month acclimation period with each prosthetic...

متن کامل

Intelligent Controls for a Semi-active Hydraulic Prosthetic Knee

We discuss open loop control development and simulation results for a semiactive above-knee prosthesis. The control signal consists of two hydraulic valve settings. These valves control a rotary actuator that provides torque to the prosthetic knee. We develop open loop control using biogeography-based optimization (BBO), which is a recently developed evolutionary algorithm, and gradient descent...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

سال: 2015

ISSN: 0954-4119,2041-3033

DOI: 10.1177/0954411915581653