Smirmaul H, Casey T A
Am J Ophthalmol. 1980 Jul;90(1):92-4. doi: 10.1016/s0002-9394(14)75082-2.
We designed a corneal trephine that permits a full view of the cornea while cutting. The drive mechanism of the trephine enables the surgeon to keep the central cutting axis of the instrument stable while the trephine is rotated. The instrument accepts variable sizes of disposable trephine blades, making it versatile and economical. We also devised a lamellar dissector with two blades to negate the splitting force that occurs during a closed lamellar dissection. It enables the surgeon to perform a closed lamellar dissection with minimal force applied to the globe and minimal risk of perforation.
我们设计了一种角膜环钻，在切割时可实现对角膜的全景观察。该环钻的驱动机制能使外科医生在环钻旋转时保持器械的中心切割轴稳定。该器械可适配多种尺寸的一次性环钻刀片，兼具通用性与经济性。我们还设计了一种带有两片刀片的板层剥离器，以抵消闭合式板层剥离过程中产生的劈裂力。它能让外科医生在对眼球施加最小力且穿孔风险最小的情况下进行闭合式板层剥离。
