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A one-dimensional model for aspiration therapy in blood vessels

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arxiv 2403.05494 v1 pith:4BX6FRHH submitted 2024-03-08 math.NA cs.NA

Michael Herty , Niklas Kolbe , Michael Neidlin This is my paper · ORCID
classification math.NAcs.NA
keywords modelaspirationblooddeviceone-dimensionalsuctiontherapyvessels
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Aspiration thrombectomy is a treatment option for ischemic stroke due to occlusions in large vessels. During the therapy a device is inserted into the vessel and suction is applied. A new one-dimensional model is introduced that is capable of simulating this procedure while accounting for the fluid-structure interactions in blood flow. To solve the coupling problem at the tip of the device a problem-suited Riemann solver is constructed based on relaxation of the hyperbolic model. Numerical experiments investigating the role of the catheter size and the suction forces are presented.

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