Cannula design - ScienceDirect
网页2018年1月1日 · Inflow (flow from patient to device) and outflow (flow from device to patient) cannula design has focused on methods to deliver sufficient cardiac output, improve vessel flow dynamics, reduce postoperative bleeding, and other anatomical considerations.
Cannula Design and Recirculation During Venovenous Extracorporeal ... - LWW
网页In the current study, we investigated the effect of draining cannula design on recirculation fraction (R f) during VV ECMO; conventional mesh cannula was compared with a multistage cannula. The effect of adjusting cannula position was also studied.
Cannulation configuration and recirculation in venovenous ...
网页2022年9月30日 · When using two cannulae (dual-site cannulation), the configuration is either atrio-femoral (AF), femoro-atrial (FA), or femoro-femoral. In the latter case both drainage and return occur in the ...
Choosing the appropriate configuration and cannulation …
网页2017年5月4日 · A single cannula with two lumens is commercially available and provides both blood drainage and reinfusion. DL design provides the drain through apertures at the SVC and IVC levels and returns oxygenated blood at …
Hemodynamic and recirculation performance of dual lumen …
网页2023年5月8日 · Introduction. Historically, venovenous extracorporeal membrane oxygenation (VV ECMO) has been performed with dedicated drainage and return cannulas. The concept of the dual-lumen cannula (DLC),...
Cannulation for veno-venous extracorporeal membrane oxygenation
网页2018年2月21日 · Using two single lumen cannulas or one dual lumen cannula, but also the design of the venous cannula, can have an impact on where within the venous system the cannula is draining blood and will affect the efficiency of the ECMO circuit. VV ECMO can be performed with different cannulation strategies.
Flow Dynamics and Mixing in Extracorporeal Support: A Study of …
网页2021年2月9日 · Cannulation strategies in medical treatment such as in extracorporeal life support along with the associated cannula position, orientation and design, affects the mixing and the mechanical shear stress appearing in the flow field. This in turn influences platelet activation state and blood cell destruction.
Variety and Classification of ECMO Systems and Cannulation …
网页2023年2月7日 · As an essential part of a successful ECMO system, we are reviewing in this chapter the different configurations of ECMO support with their indications. We then dive a little into the different cannulation techniques including assessment of patient preparedness for …
Cannula Design and Recirculation During Venovenous …
网页In the current study, we investigated the effect of draining cannula design on recirculation fraction (Rf) during VV ECMO; conventional mesh cannula was compared with a multistage cannula. The effect of adjusting cannula position was also studied.
Comparison of single-stage and multi-stage drainage cannula …
网页2023年2月14日 · Drainage cannulae are responsible for extracting venous blood from the body via a negative pressure gradient induced by the pump downstream. However, the unique designs of single- and multi-stage cannulae, such as the presence of small inlets on the walls of the cannula (side holes), result in complex flow dynamics.
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