Takuya Okubo, Toshiya Nakaguchi, Hideki Hayashi and Norimichi Tsumura
Chiba University, ,Japan
Journal of Signal Processing Vol. 15, No. 4, pp.311-314(July 2011).
Abstract
Recently, minimally invasive surgery such as laparoscopic surgery is highly
recommended to improve the quality of life (QOL) of patients after surgery.
However, the laparoscopic surgery could be a mental and/or physical stressor
to surgeons. To overcome this problem, we have proposed a computer-assisted
laparoscopy system that matches the surgeonfs visual axis and the direction
of operative field by projecting the laparoscopic image directly onto the
abdominal surface of the patient. The final goal of this study is to establish
a pseudotransparent laparoscopy system. Therefore, in this study, we propose
a novel trocar system with a retractable camera unit, which can provide
additional view to surgeons without the need for additional ports. In order
to evaluate the efficacy of the proposed system, the proposed trocar system
was inserted into a porcine abdominal cavity under laparoscopic guidance
and it was confirmed that the retractable action of the camera unit was
smooth and safe. We also confirmed that the wide field of view was successfully
obtained by a dry box experiment.
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