Types of Devices Types of Devices Types of Devices Types of Devices Types of Devices
AVP2 AVP3 AVP4 ADO mVSD
Variables
Polyester cloth
No
No
No
Yes
Yes
Occlusive planes 6 4 4 3 4
Waist length 6 mm 2 – 5 mm 4-8 mm 5 – 8 mm 7 mm
Size difference No difference 2 mm 2 mm 4mm / 6mm (depending on the type of APO) 8 mm