Hajjar, Nadim Al
An innovative mixed reality approach for Robotics Surgery
Rus, Gabriela, Hajjar, Nadim Al, Zima, Ionut, Vaida, Calin, Radu, Corina, Chablat, Damien, Ciocan, Andra, Pîslă, Doina
Robotic-assisted procedures offer numerous advantages over traditional approaches, including improved dexterity, reduced fatigue, minimized trauma, and superior outcomes. However, the main challenge of these systems remains the poor visualization and perception of the surgical field. The goal of this paper is to provide an innovative approach concerning an application able to improve the surgical procedures offering assistance in both preplanning and intraoperative steps of the surgery. The system has been designed to offer a better understanding of the patient through techniques that provide medical images visualization, 3D anatomical structures perception and robotic planning. The application was designed to be intuitive and user friendly, providing an augmented reality experience through the Hololens 2 device. It was tested in laboratory conditions, yielding positive results.
The control architecture of a spherical robot for Minimally Invasive Surgery
Rus, Gabriela, Hajjar, Nadim Al, Tucan, Paul, Zima, Ionut, Vaida, Calin, Radu, Corina, Jucan, Daniel, Chablat, Damien, Pisla, Doina
Control systems used in Minimally Invasive Surgery (MIS) play a crucial role in ensuring preci-sion and safety throughout procedures. This paper presents a control architecture developed for a robotic system designed for MIS operations. The modular structure of the control system allows for compatibility with a range of procedures in abdominal and thoracic regions. The proposed control system, employing the master-slave concept, is presented alongside the experimental model. Functional validation is obtained by performing a Siemens NX simulation and comparing the results with several experimental runs using the experimental model of the robot. With its compact size and stiffness, the system holds promise for integration with other robotic systems. Future efforts will be dedicated to exploring and optimizing this potential collaboration to enhance the overall capabilities of robotic-assisted surgery.
Accuracy and repeatability of a parallel robot for personalised minimally invasive surgery
Pisla, Doina, Tucan, Paul, Chablat, Damien, Hajjar, Nadim Al, Ciocan, Andra, Pisla, Adrian, Pusca, Alexandru, Radu, Corina, Pop, Grigore, Gherman, Bogdan
The paper presents the methodology used for accuracy and repeatability measurements of the experimental model of a parallel robot developed for surgical applications. The experimental setup uses a motion tracking system (for accuracy) and a high precision measuring arm for position (for repeatability). The accuracy was obtained by comparing the trajectory data from the experimental measurement with a baseline trajectory defined with the kinematic models of the parallel robotic system. The repeatability was experimentally determined by moving (repeatedly) the robot platform in predefined points. Keywords: parallel robot, robotic assisted surgery, measurement, accuracy, repeatability.