Hamiel S R, Bleicher J N, Tubach M R, Cronan J C
Department of Plastic and Reconstructive Surgery, Creighton University, Omaha, NE, USA.
Otolaryngol Head Neck Surg. 1995 Jul;113(1):88-91. doi: 10.1016/S0194-59989570149-4.
A small device to detect eyelid closure was designed on the basis of a Hall-effect sensor. Accurate sensing of normal eyelid closure is required to develop a prosthetic eyelid closure device for patients with paralyzed orbicularis oculi muscles. In this study, six rabbits had the sensors surgically implanted. A Hall-effect sensor, a small device that measures magnetic fields, was implanted in the inferior eyelid near the ciliary margin. An opposing magnet was implanted in the upper eyelid. Thus, as the eyelid closes, the output of the Hall-effect sensor will increase. This output voltage was monitored weekly. During the first 5 weeks the output of the Hall-effect sensor decreased slightly but then reached a steady state for the duration of the experiment. This study suggests that the Hall-effect sensor could be used to detect normal eyelid closure in an implantable facial reanimation device.
基于霍尔效应传感器设计了一种用于检测眼睑闭合的小型装置。为患有眼轮匝肌麻痹的患者开发一种假体眼睑闭合装置需要准确感知正常的眼睑闭合。在本研究中，六只兔子接受了传感器的手术植入。一个霍尔效应传感器，一种测量磁场的小型装置，被植入靠近睫状缘的下眼睑。一个相对的磁铁被植入上眼睑。因此，当眼睑闭合时，霍尔效应传感器的输出将增加。每周监测该输出电压。在最初的5周内，霍尔效应传感器的输出略有下降，但在实验期间随后达到稳定状态。这项研究表明，霍尔效应传感器可用于在可植入的面部重建装置中检测正常的眼睑闭合。
