Cahoon Judd M, Gupta Isha, Gardiner Gareth, Shi Dallas, Zaugg Brian, Pettey Jeff H, Barlow William R, Olson Randall J
From the Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA.
From the Department of Ophthalmology and Visual Sciences, John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA.
J Cataract Refract Surg. 2015 Feb;41(2):428-32. doi: 10.1016/j.jcrs.2014.12.043.
To evaluate the efficiency of peristaltic-based and venturi-based vacuums.
John A. Moran Eye Center Laboratories, University of Utah, Salt Lake City, Utah, USA.
Experimental study.
Porcine lenses were hardened with formalin and cut into 2.0 mm cubes. Time to fragment removal (efficiency) and fragment bounces off the tip (chatter) were measured using a Signature machine with the ability to switch between peristaltic-based and venturi-based vacuum. Micropulse longitudinal and transversal ultrasound motions were tested.
Venturi-based vacuum had increased efficiency and decreased chatter compared with peristaltic-based vacuum at lower vacuum levels.
Use of a venturi-based vacuum, when available, may result in reduced clearance time of lens material and mitigate chatter even under noisy conditions.
No author has a financial or proprietary interest in any material or method mentioned.
评估基于蠕动和基于文丘里的真空装置的效率。
美国犹他州盐湖城犹他大学约翰·A·莫兰眼科中心实验室。
实验研究。
用福尔马林硬化猪晶状体并切成2.0毫米的立方体。使用具有在基于蠕动和基于文丘里的真空之间切换能力的Signature机器测量碎片清除时间（效率）和碎片从尖端反弹（颤动）情况。测试了微脉冲纵向和横向超声运动。
在较低真空水平下，基于文丘里的真空装置与基于蠕动的真空装置相比，效率提高且颤动减少。
如有基于文丘里的真空装置，使用它可能会减少晶状体材料的清除时间，甚至在嘈杂条件下也能减轻颤动。
没有作者对文中提及的任何材料或方法拥有财务或专利权益。
Zotero 插件