Vitreoretinal Services, Dr. Bapaye Hospital, Nashik, Maharashtra, India.
Vitreoretinal and Ocular Oncology Services, Sankara Eye Hospital, Bengaluru, Karnataka, India.
Indian J Ophthalmol. 2018 Dec;66(12):1845-1848. doi: 10.4103/ijo.IJO_759_18.
Removal of intraocular foreign body (IOFB) from the posterior segment of the eye is challenging. In addition to surgical skill, it requires specific instrumentation to grasp and remove the IOFB. Small metallic IOFB can be removed using intraocular rare earth magnets but metallic IOFB larger than 3 mm and nonmetallic IOFBs like shot gun pellets, stones, or large glass fragments require specialized IOFB grasping forceps for removal. We describe the design and case-based clinical applications of a novel IOFB removal forceps, "the claw" that consists of a titanium handle and a 27-mm, 19-G metallic shaft that houses four retractable prongs made of nitinol wire. When completely extended, the prongs measure 14 mm in length and open up to 8-8.5 mm in the widest extent. The four prongs offer a very secure grip without crushing or splintering the IOFB leading to minimal chances of IOFB slippage and inadvertent retinal trauma.
从眼球后段取出眼内异物（IOFB）具有挑战性。除了手术技能外，还需要特定的仪器来抓取和移除 IOFB。小的金属 IOFB 可以使用眼内稀土磁铁取出，但大于 3 毫米的金属 IOFB 和非金属 IOFB，如霰弹丸、石头或大的玻璃碎片，需要专门的 IOFB 抓钳来移除。我们描述了一种新型 IOFB 移除钳“爪子”的设计和基于案例的临床应用，它由钛制手柄和 27 毫米、19-G 的金属轴组成，金属轴内装有四个由镍钛诺丝制成的可伸缩叉。当完全伸展时，叉长 14 毫米，最宽处张开 8-8.5 毫米。四个叉提供了非常牢固的抓握，不会压碎或分裂 IOFB，从而最大限度地减少 IOFB 滑动和意外视网膜创伤的机会。
