The design, optimisation and testing of a new clot retrieval device for use in vascular surgery

Dr G. Pearce1,  N.D. Perkinson1, R. Andrews2, and F. Jaegle1

1. Wolverhampton University, UK.
 2. RJAH Orthopaedic Hospital, Oswestry, UK.

The objective of our research was to use 3-D FLUENT simulation modelling to optimise the design of our new clot retrieval device (called the ‘GP’ MTD) and to then use this design in experiments to demonstrate the efficacy of our MTD based on a combination of the results of theoretical modelling and experimental laboratory investigation. A range of prototype ‘GP’ MTD’s of various internal diameters mounted on the end of an arterial catheter tube and embedded within the arterial catheter tube, were use to remove jelly-like artificial clots in a plastic tube (representing an artery). Overall, the most effective device was found to be the prototype device that was embedded within the arterial catheter tube, which had an internal diameter of 2mm with a spiral helix. The results also show the value of theoretical modelling in optimising the design of this device.

KEYWORDS: Clot removal, thrombus, and fluid-flow

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