Nisky Ilana, Huang Felix, Milstein Amit, Pugh Carla M, Mussa-Ivaldi Ferdinando A, Karniel Amir
Biomedical Engineering Department, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Stud Health Technol Inform. 2012;173:313-9.
We explored how the perception of stiffness can be distorted in Minimally Invasive Surgery. We combined a mechanical simulator with a haptic device, and implemented linear springs at the tip of the simulated laparoscopic device. To explore the influence of mechanical advantage on perception, we set different values of the ratio between internal and external length of the tool. We found that a nonsymmetrical ratio causes bias in the perceived stiffness when novice tangential probing is compared to radial probing. In contrast, haptic experts did not show similar perceptual bias.
我们探究了在微创手术中，对刚度的感知是如何被扭曲的。我们将一个机械模拟器与一个触觉设备相结合，并在模拟腹腔镜设备的尖端设置了线性弹簧。为了探究机械优势对感知的影响，我们设定了工具内外长度比的不同值。我们发现，与径向探测相比，当新手进行切向探测时，不对称的比例会导致感知刚度出现偏差。相比之下，触觉专家并未表现出类似的感知偏差。
