Medtronic Valiant Navion Gebrauchsanweisung Seite 8

1.1.1. Stent graft configuration options
1. FreeFlo Straight
2. FreeFlo Tapered
3. CoveredSeal Straight
4. CoveredSeal Tapered
5. Proximal end
6. Distal end
7. FreeFlo stent
8. Internal stent
9. Support stent
10. RO marker
11. Covered length
12. Total length
Note: Figure 1 and all other product graphics appearing in this manual are not drawn to scale. They are for graphical
representation only, and the stent graft and delivery system components may appear differently under fluoroscopy.
Valiant Navion thoracic stent grafts are available in 4 configurations: FreeFlo Straight, FreeFlo Tapered, CoveredSeal Straight,
and CoveredSeal Tapered. Each stent graft configuration can be used either as a proximal or distal component. Additional
information on stent graft sizes is provided in Section 6.3 (Recommended device sizing) and Section 6.4 (Device sizing
recommendations).
FreeFlo Straight configuration
This configuration includes a FreeFlo proximal end and a CoveredSeal distal end. At the proximal end, a 6-peak (18 Fr or
20 Fr) or 7-peak (22 Fr) bare stent extends past the covered portion of the stent graft to provide additional fixation while
maintaining transvessel flow. The diameters of the proximal end and distal end of the FreeFlo Straight configuration are
constant throughout the covered length of the device.
Caution: The proximal end of a FreeFlo stent graft should never be placed inside the fabric-covered section of another graft as
doing so may result in abrasion of the fabric by the bare stent, resulting in graft material holes or broken sutures.
FreeFlo Tapered configuration
This configuration includes a FreeFlo proximal end and a CoveredSeal distal end. At the proximal end, a 6-peak (18 Fr or
20 Fr) or 7-peak (22 Fr) bare stent extends past the covered stent graft to provide additional fixation while maintaining
transvessel flow. The diameter of the proximal end of the FreeFlo Tapered configuration is larger than the diameter of the distal
end.
Caution: The proximal end of a FreeFlo stent graft should never be placed inside the fabric-covered section of another graft as
doing so may result in abrasion of the fabric by the bare stent, resulting in graft material holes or broken sutures.
CoveredSeal Straight configuration
This configuration includes CoveredSeal proximal and distal ends. At the proximal end, a 6-peak (18 Fr or 20 Fr) or 7-peak
(22 Fr) internal stent with a 12-peak (18 Fr or 20 Fr) or 14-peak (22 Fr) W-stent are covered to provide additional fixation while
maintaining transvessel flow. The diameters of the proximal end and distal end of the CoveredSeal Straight configuration are
constant throughout the covered length of the device.
6 Instructions for Use
7 7
9
10
12
11 11
10
1
Figure 1. Stent graft configuration components
English
8
9
10
12
12
10
2 3
8
5
12
6
4