Eye Concepts, Doheny Eye Institute, University of Southern California, Los Angeles, CA 90033, USA.
Retina. 2010 Oct;30(9):1515-9. doi: 10.1097/IAE.0b013e3181ea48f9.
To evaluate and compare the performance of several designs of 20-gauge dual port (DP) vitreous cutter tips with a standard 20-gauge single port tip.
Custom 20-gauge pneumatic vitreous DP cutter tips with different sizes and port positions were evaluated through porcine vitreous and water flow rates. Five designed and fabricated DP cutter tips were compared with a normal single port control tip and evaluated by the measurement of water and porcine vitreous flow rates, and surgical examination in enucleated porcine eyes.
Some DP tips approached a maximum vitreous and water flow rates, removing water and vitreous faster than the normal control tip. With reference to surgical evaluation, some DP tips performed better than the single port tip for bulk vitrectomy, but none shaved the vitreous base more effectively.
The DP cutter system has the potential to increase the flow rates depending on the size and position of the extra port. In the future, the DP cutter may allow the surgeon to perform bulk vitrectomy more efficiently.
评估和比较几种 20 号双端口（DP）玻璃体切割头与标准 20 号单端口切割头的性能。
通过猪玻璃体和水流速率评估了具有不同尺寸和端口位置的定制 20 号气动玻璃体 DP 切割头。将五个设计和制造的 DP 切割头与正常的单端口控制头进行比较，并通过测量水流和猪玻璃体的流速以及在猪眼的眼内容物切除术中进行评估。
一些 DP 切割头接近最大玻璃体和水流速率，比正常的控制头更快地清除水和玻璃体。参考手术评估，一些 DP 切割头在进行大容量玻璃体切除术时表现优于单端口切割头，但没有一个能够更有效地切除玻璃体基底部。
DP 切割系统具有根据额外端口的尺寸和位置提高流速的潜力。未来，DP 切割器可能使外科医生更有效地进行大容量玻璃体切除术。
