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Table 4: Structure comparison among different flow diverters
Type Size (mm) Braided Microfilaments^{^a} Radio-Opaque Microfilaments Flared End Metal Coverage Retrievable
No. Material
Pipeline 3–5.5 48 75% Cobalt chromium and 25% platinum NA No 30%–35% No^{^b}
Silk 2.5–5 48 Nickel-titanium alloy 4 Platinum wires Yes 35%–55% Yes
Surpass 2.5–5 2.5 mm, 36; 3 and 4 mm, 60; 5 mm, 84 Cobalt-chromium 12 Platinum wires No 30% NA
Tubridge 2.5–6.5 <3.5 mm, 46; ≥3.5 mm, 62 Nickel-titanium alloy 2 Platinum-iridium wires Yes 30%–35% Yes
Note:—NA indicates not applicable.
↵a Braided microfilaments mean those main wires excluding microfilaments especially for radio-opaque usage.
↵b The Pipeline Embolization Device is not retrievable, but at any point up to final deployment, it may be captured and removed from the body.

Type	Size (mm)	Braided Microfilaments^{^a}		Radio-Opaque Microfilaments	Flared End	Metal Coverage	Retrievable
Type	Size (mm)	No.	Material	Radio-Opaque Microfilaments	Flared End	Metal Coverage	Retrievable
Pipeline	3–5.5	48	75% Cobalt chromium and 25% platinum	NA	No	30%–35%	No^{^b}
Silk	2.5–5	48	Nickel-titanium alloy	4 Platinum wires	Yes	35%–55%	Yes
Surpass	2.5–5	2.5 mm, 36; 3 and 4 mm, 60; 5 mm, 84	Cobalt-chromium	12 Platinum wires	No	30%	NA
Tubridge	2.5–6.5	<3.5 mm, 46; ≥3.5 mm, 62	Nickel-titanium alloy	2 Platinum-iridium wires	Yes	30%–35%	Yes