Yambe T, Kobayashi S, Nanka S, Yoshizawa M, Tabayashi K, Takeda H, Nitta S
Department of Medical Engineering and Cardiology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan.
Int J Artif Organs. 1998 Jun;21(6):348-52.
For the development of the totally implantable artificial organs, it is an important problem to monitor the conditions of the implantable devices, especially when used in clinical cases. In this study we used position sensors for the 3-dimensional (3-D) virtual reality (VR) system monitor an implantable artificial heart. The sensors used in the experiments were 3-space Fastrak (Polhemus, USA). The position sensors using electro-magnetic forces were attached to the inner actuating zone. Sensitivity of the position sensors was in the order of around 0.8 mm. By use of these VR position sensors, we could easily detect the six degrees of freedom as x,y,z, and pitch, yaw, roll of these sensors. Experimental evaluation using a model circulation loop and healthy adult goats was performed. Experimental results suggest that our newly developed implantable sensors for monitoring the implantable artificial heart system were useful for sensing driving condition, thus possibly useful for the implantable devices for clinical usage.
对于全植入式人工器官的研发而言，监测植入式设备的状况是一个重要问题，尤其是在临床应用时。在本研究中，我们使用位置传感器通过三维（3-D）虚拟现实（VR）系统来监测植入式人工心脏。实验中使用的传感器是3-space Fastrak（美国Polhemus公司）。利用电磁力的位置传感器被附着在内驱动区域。位置传感器的灵敏度约为0.8毫米。通过使用这些VR位置传感器，我们能够轻松检测出这些传感器在x、y、z方向以及俯仰、偏航、滚转这六个自由度上的情况。使用模型循环回路和健康成年山羊进行了实验评估。实验结果表明，我们新开发的用于监测植入式人工心脏系统的植入式传感器对于感知驱动状况是有用的，因此可能对临床使用的植入式设备也有用。
