Muhaimin Mohd Fadzil

In recent decades, the use of three-dimensional ultrasound (3DUS) imaging of organs has been growing rapidly compared to its two-dimensional ultrasound (2DUS) type. The use of freehand technique in 3DUS system may help to improve the natural flexibility performance. To realize a 3DUS freehand imaging, a position tracking system which measures the US probe position in real time is added. The design, simulation, and analysis of a new 6 degree-of-freedom (6DOF) manipulator-based position tracking system for 3DUS probe are presented in this paper. The forward kinematics of the manipulator was calculated using the Denavit-Hartenberg (D-H) convention. The position of end-effector, which represented the US probe position, was then measured using the joint parameters. The mathematical equations were then verified using Robotic Toolbox in MATLAB as the simulation software. The results of both simulation and equation verified the validity of the kinematic equations.

A new approach of preventing bedsore risk for bedridden patients is presented. The design is proposed by transferring the conventional method into a portable mechanism that was derived from popular nurses’ practice using bed sheet to relieve patient skin pressure by repositioning or rolling them every 2 hours. The portable equipment is installed in between the bed to reposition the patient. In this paper, the development of prototype design is addressed, followed by the simulation of structure stress analysis and software development. This study will match the proposed design with the behavior of its user.