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Articles 1 - 4 of 4
Full-Text Articles in Computer Engineering
Modeling Of Force And Motion Transmission In Tendon-Driven Surgical Robots, Farshad Anooshahpour
Modeling Of Force And Motion Transmission In Tendon-Driven Surgical Robots, Farshad Anooshahpour
Electronic Thesis and Dissertation Repository
Tendon-based transmission is a common approach for transferring motion and forces in surgical robots. In spite of design simplicity and compactness that comes with the tendon drives, there exists a number of issues associated with the tendon-based transmission. In particular, the elasticity of the tendons and the frictional interaction between the tendon and the routing result in substantially nonlinear behavior. Also, in surgical applications, the distal joints of the robot and instruments cannot be sensorized in most cases due to technical limitations. Therefore, direct measurement of forces and use of feedback motion/force control for compensation of uncertainties in tendon-based motion …
A Framework For Tumor Localization In Robot-Assisted Minimally Invasive Surgery, Nikita Chopra
A Framework For Tumor Localization In Robot-Assisted Minimally Invasive Surgery, Nikita Chopra
Electronic Thesis and Dissertation Repository
Manual palpation of tissue is frequently used in open surgery, e.g., for localization of tumors and buried vessels and for tissue characterization. The overall objective of this work is to explore how tissue palpation can be performed in Robot-Assisted Minimally Invasive Surgery (RAMIS) using laparoscopic instruments conventionally used in RAMIS. This thesis presents a framework where a surgical tool is moved teleoperatively in a manner analogous to the repetitive pressing motion of a finger during manual palpation. We interpret the changes in parameters due to this motion such as the applied force and the resulting indentation depth to accurately determine …
Bim Assisted Design Process Automation For Pre-Engineered Buildings (Peb), Mohammad Delavar
Bim Assisted Design Process Automation For Pre-Engineered Buildings (Peb), Mohammad Delavar
Electronic Thesis and Dissertation Repository
The effective adoption and implementation of Building Information Modeling (BIM) is still challenging for the construction industry. However, studies and reports show a significant increase in the rate of BIM implementation and adoption in mainstream construction activities over the last five years. In contrast, Pre-Engineered Building (PEB) construction, a specialized construction system which provides a very efficient approach for construction of primarily industrial buildings, has not seen the same uptake in BIM implementation and adoption. The thesis reviews the benefits and the main applications of BIM for the PEB industry as well as challenges of its practical implementation. To facilitate …
Expert-In-The-Loop Multilateral Telerobotics For Haptics-Enabled Motor Function And Skills Development, Mahya Shahbazi
Expert-In-The-Loop Multilateral Telerobotics For Haptics-Enabled Motor Function And Skills Development, Mahya Shahbazi
Electronic Thesis and Dissertation Repository
Among medical robotics applications are Robotics-Assisted Mirror Rehabilitation Therapy (RAMRT) and Minimally-Invasive Surgical Training (RAMIST) that extensively rely on motor function development. Haptics-enabled expert-in-the-loop motor function development for such applications is made possible through multilateral telerobotic frameworks. While several studies have validated the benefits of haptic interaction with an expert in motor learning, contradictory results have also been reported. This emphasizes the need for further in-depth studies on the nature of human motor learning through haptic guidance and interaction. The objective of this study was to design and evaluate expert-in-the-loop multilateral telerobotic frameworks with stable and human-safe control loops that …