Alberts Melissa S, Niles Scott D, Wilson Dennis, Ploessl James
University of lowa Hospitals and Clinics, Iowa City, Iowa , USA.
J Extra Corpor Technol. 2009 Jun;41(2):105-9.
Triboelectric charging is commonly detected during cardiopulmonary bypass in circuits using roller pumps and PVC tubing. Dissipation of this charging is needed to prevent a spontaneous discharge from occurring. We evaluated the ability of the Quadrox-D (Maquet) to effectively remove the electrostatic charge accumulation, with and without a heater/cooler connection (H/C). A Quadrox-D oxygenator was evaluated using a Stockert SIII pump head, Cincinnati subzero H/E, and a custom adult extracorporeal membrane oxygenation tubing pack with 1/2" PVC raceway. The circuit was primed and evaluated for triboelectric accumulation with and without H/C use. The results showed a linear relationship between increasing pump flow and static charge buildup when an H/C was not applied. The calculated r2 value was .95. Incorporation of the H/C effectively eliminated charge accumulation. Increasing pump speed increases the amount of static charge created without the use of an H/C. Incorporation of an H/C effectively eliminates charge build-up in the Quadrox-D and is recommended while priming the circuit.
在使用滚压泵和聚氯乙烯（PVC）管道的体外循环过程中，通常会检测到摩擦起电现象。需要消除这种电荷，以防止自发放电的发生。我们评估了Quadrox-D（迈柯唯公司）在连接或不连接加热器/冷却器（H/C）的情况下有效消除静电荷积累的能力。使用斯托克特SIII泵头、辛辛那提零下H/E以及带有1/2英寸PVC管道的定制成人体外膜肺氧合（ECMO）管道套件对Quadrox-D氧合器进行评估。对该体外循环回路进行预充，并在使用和不使用H/C的情况下评估摩擦起电积累情况。结果显示，在不应用H/C时，泵流量增加与静电荷积累之间存在线性关系。计算得出的r2值为0.95。加入H/C可有效消除电荷积累。在不使用H/C的情况下，提高泵速会增加产生的静电荷量。加入H/C可有效消除Quadrox-D中的电荷积累，建议在体外循环回路预充时使用。
