Stent-graft and apparatus and fitting method
First Claim
1. An implantable medical device including a compressible and curvable structure;
- a loop of suture material, the loop including a first end closed in a knot and a second end passing through the knot and able to slide therein at least in a loop tightening direction, the loop being fitted to the device such that tightening of the loop causes the device to be curved; and
including a tie element which ties the knot to a part of the medical device.
3 Assignments
0 Petitions
Accused Products
Abstract
A stent-graft (100) is provided with a tightenable loop element (104) having a first end terminated in a slip knot or self-tightening knot (112) and a second end which is received in and can slide in the knot (112). The knot (112) is tied by a suture to the stent-graft (100) so as to be fixed thereto. The loop (104) is fitted to the stent-graft (100) in a manner as to pass between the inside to the outside of the graft material and in such a manner that controlled curvature of the stent-graft (100) is possible, in particular control of the overlapping of adjacent stents held within the zone of the loop (104). An introducer assembly is also disclosed which includes a control cannula (120) able to the fixed to the stent-graft (100) during the deployment procedure, as well as a mechanism of suture loops (150, 152) at the proximal end of the stent-graft (100) for retaining this in a constricted form during the process of curving the latter during the deployment process.
31 Citations
24 Claims
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1. An implantable medical device including a compressible and curvable structure;
- a loop of suture material, the loop including a first end closed in a knot and a second end passing through the knot and able to slide therein at least in a loop tightening direction, the loop being fitted to the device such that tightening of the loop causes the device to be curved; and
including a tie element which ties the knot to a part of the medical device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a loop of suture material, the loop including a first end closed in a knot and a second end passing through the knot and able to slide therein at least in a loop tightening direction, the loop being fitted to the device such that tightening of the loop causes the device to be curved; and
- 14. An implantable medical device including a compressible and curvable structure, a loop of suture material, the loop including a first end closed in a knot and a second end passing through the knot and able to slide therein at least in a loop tightening direction, the loop being fitted to the device such that tightening of the loop causes the device to be curved, wherein the device is provided with a plurality of stents coupled to one another by resilient means, the loop being fitted so as to be held to a surface of the device at a plurality of positions adjacent portions said stents so as to pull said stents together such that at least some of said stents overlap one another in a predetermined manner when the loop is tightened so as to cause folding of the resilient means between adjacent stents.
- 23. An implantable medical device including a compressible and curvable structure, at least one loop of suture material provided around a proximal end of the medical device, the loop having an operable length less than the diameter of the proximal end of the medical device so as in use to constrict radially the proximal end of the medical device during deployment.
Specification