Page 15 - Abstract book - TJSSF-2020

Thailand – Japan Student Science Fair 2020 (TJ-SSF 2020)
“Seeding Innovations through Fostering Thailand – Japan Youth Friendship”

Increasing Flow Rate Model via Helicoid Equations for Removing
Blood Clots in Medical Treatments

Patcharapol Rujipornpong , Pittinan Harnsinghkun
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Advisors: Pitsinee Kongsukon , Wasan Akarathanawat
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Princess Chulabhorn Science High School Phetchaburi
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Faculty of Medicine, Chulalongkorn University
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Abstract

Mechanical Thrombectomy, an efficient Venous Thrombosis treatment, is the interventional procedure
of removing blood clots from blood vessels in patients with Venous Thrombosis. This removal
is achieved by using helicoid to transfer the blood clots. The removal of blood clots increases
the blood flow rates when patients have had effective helicoid treatments. This project aims to use
helicoid equations to increase the flow rate of blood clot removal. We studied 3 types of helicoids
(circular, conical and paraboloidal helicoids) with surface integrals to derive new formulas.
These formulas were related to both the pitch and surface area of the helicoids, so that we could then
design treatment device models. Once the treatment devices were designed, we used Solidworks
Simulations to model, simulate and evaluate the flow of blood clots in the helicoid in both the head and
the body. The results show that in helicoids which had the same pitch, the blood flow rates
of paraboloidal, conical and circular helicoid are 1.006, 0.961 and 0.911 ml/s,
respectively. Furthermore, in helicoids which had equal surface area, the blood flow rates of
paraboloidal, conical and circular helicoid are 1.098, 1.012 and 0.911 ml/s, respectively. To
summarize, our results demonstrate that paraboloidal helicoid with equal surface area is the most
appropriate helicoids for their capabilities to increase the flow rate of removing blood clots, at a
significance level of .01.

Keywords: Helicoid Equation, Pitch, Surface Area, Blood Clot, Mechanical Thrombectomy

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