Study on opening pressure of hydrocephalus shunt under siphon

The opening pressure of the hydrocephalus shunt with the siphon device was studied and analyzed in this paper. The influence of fluid velocity and siphon height on the opening pressure of hydrocephalus shunt is analyzed. According to the national medical industry standards, the hydrocephalus shunt must be opened by the liquid column detection method. In this paper, computational fluid dynamics was used to simulate the liquid column pressure, and the interaction analysis of the two factors of flow rate and siphon height was carried out. Finally, the influence of flow velocity and siphon height on the opening pressure of hydrocephalus shunt was obtained in this paper, and the relevant formula of the influence of these two factors on the opening pressure was obtained. (paper)