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Full-Text Articles in Biomedical Engineering and Bioengineering
Metrics For Evaluating Surgical Microscope Usage During Myringotomy, Arefin M. Shamsil
Metrics For Evaluating Surgical Microscope Usage During Myringotomy, Arefin M. Shamsil
Electronic Thesis and Dissertation Repository
Abstract
Although teaching and learning surgical microscope manoeuvring is a fundamental step in middle ear surgical training, currently there is no objective method to teach or assess this skill. This thesis presents an experimental study designed to implement and test sets of metrics capable of numerically evaluating microscope manoeuvrability and qualitatively assessing surgical expertise of a subject during a middle ear surgery called myringotomy. The experiment involved performing a myringotomy on a fixed cadaveric ear. As participants, experienced ear-nose-throat (ENT) surgeons and ENT surgical residents were invited. While performing the procedure, their microscope manoeuvring motions were captured as translational and …
A Sensorized Instrument For Minimally Invasive Surgery For The Measurement Of Forces During Training And Surgery: Development And Applications, Ana Luisa Trejos
A Sensorized Instrument For Minimally Invasive Surgery For The Measurement Of Forces During Training And Surgery: Development And Applications, Ana Luisa Trejos
Electronic Thesis and Dissertation Repository
The reduced access conditions present in Minimally Invasive Surgery (MIS) affect the feel of interaction forces between the instruments and the tissue being treated. This loss of haptic information compromises the safety of the procedure and must be overcome through training. Haptics in MIS is the subject of extensive research, focused on establishing force feedback mechanisms and developing appropriate sensors. This latter task is complicated by the need to place the sensors as close as possible to the instrument tip, as the measurement of forces outside of the patient's body does not represent the true tool--tissue interaction. Many force sensors …