Investigations into the gait of persons with partial foot amputation (PFA) suggest that the effective foot length can be restored when the prosthesis incorporates a relatively stiff forefoot, restricts dorsiflexion, and includes a mechanism whereby forces caused by loading the toe lever can be comfortably distributed to the leg (e.g., an anterior tibial shell). The purpose of this investigation...

This study was undertaken to design an updated connection system for an eyeglass-supported nasal prosthesis using rapid prototyping techniques. The substructure was developed with two main endpoints in mind: the connection to the silicone and the connection to the eyeglasses. The mold design was also updated; the mold was composed of various parts, each carefully designed to allow for easy rele...

The first step to study and develop a two Degrees of Freedom (DOF) prosthesis is to derive a dynamic model for simulation and control design. In this paper, the ankle-foot prosthesis has controllable Dorsi-Plantarflexion (DP) and Inversion-Eversion (IE) DOF. We derive a compliant dynamic model for a recently developed ankle-foot prosthesis followed by identification of the actuators, transmissi...

Problems can develop when teeth and implants are combined in the same prosthesis due to the difference in mobility of the two. However, by combining dental implants and natural teeth with the help of attachments, clinicians can greatly improve retention, stability and aesthetics of these prostheses. The biomechanical principles should be judiciously incorporated in the design to nullify the del...

In this research we design a passive controller for an above knee prosthesis. The controller is a linear spring and damper for swing phase motion, parameters of which determined via optimization of adjustment of the prosthesis shank motion with a desired shank angle trajectory comes from experimental data. In this way, we exerted a certain thigh motion, hip movement included, into the system as...

Full arch implant-supported prostheses following Branemark protocol are widely used for oral rehabilitation of people with edentulous jaws and associated to the full upper conventional prosthesis. Their indication requires that the dental surgeon be prepared for prosthetic-surgical approach and planning. Therefore, this work aims to present the planning and execution of a lower arch implant-sup...