Project description
Safer blood flow in extracorporeal devices
Blood flow in extracorporeal medical devices, such as ECMO circuits, is often exposed to conditions that can damage red blood cells or trigger clot formation. Since current therapies to prevent these effects come with side effects, it is necessary to understand the root causes of flow-induced hemolysis and thrombogenesis. The complex blood flow through pumps, oxygenators, cannulae, and tubes can be turbulent or transitional. With the support of the Marie Skłodowska-Curie Actions programme, the STETHOS project uses high-fidelity 3D simulations to study blood flow in ECMO connectors and curved tubes. It will apply non-Newtonian models and advanced stability analyses. By mapping how turbulence and flow transitions affect hemolysis and platelet activation, the project aims to guide the design of safer medical devices.
Objective
The blood flow in extracorporeal medical devices is exposed to non-physiological conditions, which may lead to red blood cell damage and clot formation. Several therapies are applied to patients to prevent these phenomena, but they all come with side effects. Understanding the causes of flow-induced hemolysis and thrombogenesis would reduce the need for medical therapies, thus enhancing the well-being of the patients. An extracorporeal membrane oxygenation (ECMO) circuit is made up of several components: a blood pump, a membrane oxygenator, cannulae, tubes and connectors. The blood flow through these components is either turbulent or transitional, thus the blood is subject to hydrodynamic stresses that may lead to hemolysis or platelet activation. The link of these two undesired phenomena with the flow regimes and the transition mechanism has not been investigated in previous studies, and it is the aim of the current project. We will perform high-fidelity, three-dimensional numerical simulations of the flow in the connectors and the curved flexible tubes of an ECMO circuit. A non-Newtonian rheological model will be assumed for the blood viscosity. Transition to turbulence will be studied employing both modal and non-modal three-dimensional global stability analysis. For this purpose, a time-stepping technique will be implemented in the numerical code developed by the host's group, combined with a method for solving large-scale eigenvalue problems. Finally, an adjoint sensitivity analysis of the hemolysis index and the platelet activation state to boundary conditions and modifications in the flow will be performed. These results will provide insightful information for the design of medical devices with increased hemodynamic performance.
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Keywords
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
67100 L'Aquila
Italy
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