Development of Ophthalmologic Handpiece for Cataract Surgery

在模拟白内障手术中测量了猪眼前房的速度分布。根据测量的平均流速分布估计角膜内皮的粘性剪切应力。剪应力最大可达7达因/cm^2。为了降低喷灌液从套筒流出的速度，采用快速成型技术研制了一种新型套筒。在水容器中的研究中，速度降低了30%。

Velocity distributions in the anterior chamber of porcin eye under simulated cataract surgery have been measured. Viscous shear stress on the corneal endothelium was estimated based on the measured mean velocity distribution. The shear stress was estimated to be 7 dyne/cm^2 in maximum. In order to reduce the velocity of the irrigation fluid issued from the sleeve, a new sleeve was developed by using rapid prototyping method. In the case of study in a water container, the velocity has been reduced 30%.