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Table 1 Geometrical parameters of the VCs in Group I, II and III

From: Influence of the hole geometry on the flow distribution in ventricular catheters for hydrocephalus

 

Outer diameter

Tilt angle

Distance to the tip

Group I

Model 1

(0.5, 0.5, 0.5)

(0.0, 0.0, 45.0)

(4.0, 10.0, 16.0)

Model 2

(0.5, 0.5, 0.5)

(0.0, 45.0, 0.0)

(4.0, 10.0, 16.0)

Model 3

(0.5, 0.5, 0.5)

(45.0, 0.0, 0.0)

(4.0, 10.0, 16.0)

Group II

Model 4

(0.5, 0.5, 1.0)

(0.0, 0.0, 0.0)

(4.0, 10.0, 16.0)

Model 5

(0.5, 1.0, 0.5)

(0.0, 0.0, 0.0)

(4.0, 10.0, 16.0)

Model 6

(1.0, 0.5, 0.5)

(0.0, 0.0, 0.0)

(4.0, 10.0, 16.0)

Group III

Model 7

(1.3, 1.1, 0.5)

(0.0, 0.0, 0.0)

(4.0, 6.0, 16.0)

Model 8

(1.3, 0.94, 0.5)

(0.0, 0.0, 0.0)

(4.0, 8.0, 16.0)

Model 9

(1.3, 0.8, 0.5)

(0.0, 0.0, 0.0)

(4.0, 10.0, 16.0)

Model 10

(1.3, 0.68, 0.5)

(0.0, 0.0, 0.0)

(4.0, 12.0, 16.0)

  1. Each entry in a bracket displays the corresponding measure in the following order: (distal segment, middle segment, proximal segment). Lengths are given in millimeters and angles in degrees. All the parameters are illustrated in Fig. 2