利用舌头上的电触觉刺激阵列引导手术手势：可行性研究
Guiding the surgical gesture using an electro-tactile stimulus array on the tongue: A feasibility study
摘要：
在传统的“开放式”手术中，医生必须照顾病人，与其他临床医生互动，并检查几个监测设备。如今，计算机辅助手术提出在手术室中集成3D摄像机，以帮助外科医生进行微创手术穿刺。摄像机定位针头，计算机引导外科医生朝向颅内临床定义的目标。采用可视化系统（屏幕）为外科医生提供关于针的颅内位置的间接视觉空间信息。目前的工作建议使用另一种感官模态来引导外科医生，从而保持视觉模态完全专用于手术手势。为此，利用使用Bach-y-Rita的“舌头显示单元”（TDU）的感觉替代范例来向外科医生提供位置工具的信息。TDU设备由在舌头表面上传输电触觉信息的6x6电极矩阵组成。其基本思想在于传输关于针运动相对于预先计划的“最佳”轨迹的偏差的信息。我们提出了一个实验，评估的指导有效性，在TDU的指导下，在一个通常的视觉引导系统下证明的性能。
英文摘要：
Under conventional "open-" surgery, the physician has to take care of the patient, interact with other clinicians and check several monitoring devices. Nowadays, the Computer Assisted Surgery proposes to integrate 3D cameras in the operating theatre in order to assist the surgeon in performing minimal-invasive surgical punctures. The cameras localize the needle and the computer guides the surgeon towards an intracorporeal clinically-defined target. A visualization system (screen) is employed to provide the surgeon with indirect visual spatial information about the intracorporeal positions of the needle. The present work proposes to use another sensory modality to guide the surgeon thus keeping the visual modality fully dedicated to the surgical gesture. For this, the sensory substitution paradigm using the Bach-y-Rita's "Tongue Display Unit" (TDU) is exploited to provide to the surgeon information of the position tool. The TDU device is composed of a 6x6 matrix of electrodes transmitting electrotactile information on the tongue surface. The underlying idea consists in transmitting information about the deviation of the needle movement with regard to a pre-planned "optimal" trajectory. We present an experiment assessing the guidance effectiveness of an intracorporeal puncture under TDU guidance with respect to the performance evidenced under a usual visual guidance system.
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