Physiological Control Algorithm for a Pulsatile-flow 3D Printed Circulatory Model to Simulate Human Cardiovascular System

Peak, Preston; Tedesco, Victor; Kiang, Simon; Smith, P. Alex; Nissim, Lee; Fraser, Katharine; Frazier, O. H.; Wang, Yaxin

doi:10.1109/embc48229.2022.9871836

Cited by 4 publications

(1 citation statement)

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“…Our ultimate goal is to make sure the model can replicate human hemodynamics, which will require a pulsatile-flow pump instead of a continuous-flow pump to simulate the heart, and the addition of adjustable lumped superior and inferior compliance chambers and resistance at the peripheral locations. Currently, our engineering team is developing a pulsatile-flow pump that can replicate the left ventricle [ 9 , 10 ]. The next step will be integrating the pulsatile pump into this 3D anatomical model to simulate the heart, so the model can simulate not only the physiological effects of replacing the heart with CPB but also the effects of the CPB weaning procedure.…”

Section: Discussionmentioning

confidence: 99%

3D-Printed silicone anatomic patient simulator to enhance training on cardiopulmonary bypass

Messarra¹,

Wang²,

Smith³

et al. 2023

J Extra Corpor Technol

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Simulator training is important for teaching perfusion students fundamental skills associated with CBP before they start working in the clinic. Currently available high-fidelity simulators lack anatomic features that would help students visually understand the connection between hemodynamic parameters and anatomic structure. Therefore, a 3D-printed silicone cardiovascular system was developed at our institution. The aim of this study was to determine whether using this anatomic perfusion simulator instead of a traditional “bucket” simulator would better improve perfusion students’ understanding of cannulation sites, blood flow, and anatomy. Sixteen students were tested to establish their baseline knowledge. They were randomly divided into 2 groups to witness a simulated bypass pump run on 1 of 2 simulators—anatomic or bucket—then retested. To better analyze the data, we defined ‘true learning’ as characterized by an incorrect answer on the pre-simulation assessment being corrected on the post-simulation assessment. The group that witnessed the simulated pump run on the anatomic simulator showed a larger increase in mean test score, more instances of true learning, and a larger gain in the acuity confidence interval. Despite the small sample size, the results suggest that the anatomic simulator is a valuable instrument for teaching new perfusion students.

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Section: Discussionmentioning

confidence: 99%