Floyd Michael S, Valentine Jeremy R, Olson Randall J
Department of Ophthalmology and Visual Sciences, University of Utah Health Sciences Center, Salt Lake City, Utah, USA.
Am J Ophthalmol. 2006 Sep;142(3):387-92. doi: 10.1016/j.ajo.2006.04.042.
To study heat generation, vacuum, and flow characteristics of the Alcon Infiniti and Bausch & Lomb Millennium with results compared with the Alcon Legacy and advanced medical optics (AMO) Sovereign machines previously studied.
Experimental study.
Heat generation with continuous ultrasound was determined with and without a 200-g weight. Flow and vacuum were determined from 12 to 40-ml/min in 2-ml/min steps. The impact of a STAAR Cruise Control was also tested.
Millennium created the most heat/20% of power (5.67 +/- 0.51 degrees C unweighted and 6.80 +/- 0.80 degrees C weighted), followed by Sovereign (4.59 +/- 0.70 degrees C unweighted and 5.65 +/- 0.72 degrees C weighted), Infiniti (2.79 +/- 0.62 degrees C unweighted and 3.96 +/- 0.31 degrees C weighted), and Legacy (1.99 +/- 0.49 degrees C unweighted and 4.27 +/- 0.76 degrees C weighted; P < .0001 for all comparisons between machines except Infiniti vs Legacy, both weighted). Flow studies revealed that Millennium Peristaltic was 17% less than indicated (P < .0001 to all other machines), and all other machines were within 3.5% of indicated. Cruise Control decreased flow by 4.1% (P < .0001 for same machine without it). Millennium Venturi had the greatest vacuum (81% more than the least Sovereign; P < .0001), and Cruise Control increased vacuum in a peristaltic machine 35% more than the Venturi system (P < .0001).
Percent power is not consistent in regard to heat generation, however, flow was accurate for all machines except Millennium Peristaltic. Restriction with Cruise Control elevates unoccluded vacuum to levels greater than the Venturi system tested.
研究爱尔康Infiniti和博士伦Millennium的产热、真空及流量特性，并将结果与之前研究过的爱尔康Legacy和先进医学光学（AMO）Sovereign机器进行比较。
实验研究。
在有和没有200克重量的情况下，测定连续超声时的产热。流量和真空度以2毫升/分钟的步长从12毫升/分钟测定至40毫升/分钟。还测试了STAAR巡航控制系统的影响。
Millennium产热最多/功率的20%（无负载时为5.67±0.51℃，有负载时为6.80±0.80℃），其次是Sovereign（无负载时为4.59±0.70℃，有负载时为5.65±0.72℃），Infiniti（无负载时为2.79±0.62℃，有负载时为3.96±0.31℃），以及Legacy（无负载时为1.99±0.49℃，有负载时为4.27±0.76℃；除Infiniti与Legacy有负载情况外，所有机器之间的比较P<0.0001）。流量研究表明，Millennium蠕动泵的流量比标称值低17%（与所有其他机器相比P<0.0001），而所有其他机器的流量在标称值的3.5%以内。巡航控制系统使流量降低了4.1%（与没有该系统的同一机器相比P<0.0001）。Millennium文丘里泵产生的真空度最高（比最低的Sovereign高81%；P<0.0001），巡航控制系统使蠕动泵机器的真空度比文丘里系统提高了35%（P<0.0001）。
就产热而言，功率百分比并不一致，然而，除Millennium蠕动泵外，所有机器的流量都是准确的。巡航控制系统的限制使未阻塞的真空度提高到高于所测试的文丘里系统的水平。
