Finger P T, Selkin R, Grabczyk J, Fetter R W
Department of Ophthalmology, North Shore University Hospital, Cornell University Medical College, Manhasset, New York 11030.
Retina. 1993;13(1):63-8. doi: 10.1097/00006982-199313010-00014.
A gel-block system was developed to illustrate heating patterns induced by ophthalmic microwave applicators. A heat-sensitive liquid crystal card was affixed as to bisect a Lucite box. The box was then filled with a clear tissue equivalent polyacrylamide gel. It was found that semicircular heating patterns were generated within the gel. These patterns were visualized by placing one of the dish-shaped ophthalmic microwave applicators on top of the polyacrylamide gel and the heat-sensitive liquid crystal card. An antenna was then placed in the gel and behind the card. Microwave energy was sent through the card and into the gel. This demonstrated the relatively homogeneous and roughly circular heating pattern produced at the applicator's surface. A combination of these profiles led to construction of a three-dimensional, dome-shaped model of heating, as provided by this microwave antenna design.
开发了一种凝胶块系统，以说明眼科微波施加器所诱导的加热模式。将一张热敏液晶卡片粘贴好，使其将一个有机玻璃盒二等分。然后向该盒中填充一种透明的组织等效聚丙烯酰胺凝胶。结果发现，凝胶内部产生了半圆形加热模式。通过将其中一个盘形眼科微波施加器放置在聚丙烯酰胺凝胶和热敏液晶卡片上方，这些模式得以可视化。然后将一根天线置于凝胶中且在卡片后方。微波能量通过卡片传入凝胶。这证明了在施加器表面产生的相对均匀且大致呈圆形的加热模式。这些轮廓的组合形成了一个由这种微波天线设计提供的三维圆顶形加热模型。
