Liu Wen, Wang Dan-Dan, Huang Su-Ying, Li Jia-Qing, Wu Su-Hong, Hang Li
Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, People's Republic of China.
Am J Ophthalmol. 2005 Jul;140(1):151-2. doi: 10.1016/j.ajo.2004.12.085.
To modify an infusion cannula for vitreous surgery and decrease cannula-related complications.
New surgical instrument.
A conventional 20-gauge infusion cannula was modified by forming a 135-degree angle at the joint of the flange between the cannula adapter and the needle. The sloped plane of the needle tip was opposite the bent adapter. The cannula was routinely fastened with a 7-0 absorbable suture after insertion into the eye.
We used the modified infusion cannula in 50 consecutive phakic eyes (48 patients). Intraoperatively, the cannula remained attached to the globe surface; it did not tilt anteriorly and damage the lens when touched inadvertently. No suprachoroidal or subretinal infusion was observed. Neither the lens nor the retina was damaged. There were no cannula-related retinal detachments or breaks during follow-up.
The modified infusion cannula is more effective and safer during pars plana vitrectomy in phakic eyes compared with a conventional cannula.
改进用于玻璃体手术的输液套管，减少与套管相关的并发症。
新型手术器械。
对传统的20号输液套管进行改进，在套管适配器与针头之间的凸缘连接处形成135度角。针尖的斜面与弯曲的适配器相对。将套管插入眼内后，常规用7-0可吸收缝线固定。
我们在50只连续的有晶状体眼中（48例患者）使用了改进后的输液套管。术中，套管保持附着在眼球表面；不经意触碰时不会向前倾斜并损伤晶状体。未观察到脉络膜上腔或视网膜下输液。晶状体和视网膜均未受损。随访期间未出现与套管相关的视网膜脱离或裂孔。
与传统套管相比，改进后的输液套管在有晶状体眼的扁平部玻璃体切除术中更有效、更安全。
