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Tri-axial Force Sensor for an Eye Surgery
We are working on equipping a needle-sized device with a tri-axial force sensor for ophthalmologic interventions (eye surgery).
Keywords: A needle-sized force sensor, Palpation, Eye surgery, Minimal Invasive Surgery
In recent years, the development of needle-sized tools enabled new or improved established Minimal Invasive Surgery (MIS) procedures, where small skin incisions are used as pathways for surgical tools. One of the most delicate MIS procedures is eye surgery. Here, surgeons have to rely only on the visual stream provided by a camera where the image quality is important (resolution, data rate, focus, etc.). The sense of touch is lost, but it would provide useful information for surgeons, e.g. by discrimination of pathologist through stiffness differences. Thus, an artificial sensing mechanism is required. Within the MIRACLE project, we are working on equipping a needle-sized device with a tri-axial force sensor for ophthalmologic interventions (eye surgery).
In recent years, the development of needle-sized tools enabled new or improved established Minimal Invasive Surgery (MIS) procedures, where small skin incisions are used as pathways for surgical tools. One of the most delicate MIS procedures is eye surgery. Here, surgeons have to rely only on the visual stream provided by a camera where the image quality is important (resolution, data rate, focus, etc.). The sense of touch is lost, but it would provide useful information for surgeons, e.g. by discrimination of pathologist through stiffness differences. Thus, an artificial sensing mechanism is required. Within the MIRACLE project, we are working on equipping a needle-sized device with a tri-axial force sensor for ophthalmologic interventions (eye surgery).
Your task is to develop a needle-sized tri-axial force sensor which can be used for ophthalmologic interventions. Based on the literature research and own ideas, different concepts are developed to implement a tri-axial force sensor in the needle-sized tools. These concepts are evaluated with respect to criteria such as miniaturization potential, accuracy, reliability, repeatability, and autoclavability. Next, the most promising concept is designed and manufactured. The sensor is then included in the existing prototype and its control architecture, which is based on TwinCAT3 and MATLAB Simulink. Finally, testing, evaluation, and characterization of the system with respect to its requirements.
Your task is to develop a needle-sized tri-axial force sensor which can be used for ophthalmologic interventions. Based on the literature research and own ideas, different concepts are developed to implement a tri-axial force sensor in the needle-sized tools. These concepts are evaluated with respect to criteria such as miniaturization potential, accuracy, reliability, repeatability, and autoclavability. Next, the most promising concept is designed and manufactured. The sensor is then included in the existing prototype and its control architecture, which is based on TwinCAT3 and MATLAB Simulink. Finally, testing, evaluation, and characterization of the system with respect to its requirements.