Delivery system and method for deployment of foreshortening endoluminal devices
First Claim
1. A delivery system for an endoluminal device, the delivery system comprising:
- an endoluminal device having a compressed configuration;
an outer sheath that radially surrounds the endoluminal device in the compressed configuration;
a pusher positioned at one end of the endoluminal device;
a linkage, comprising a first pinion and a second pinion coaxially coupled to the first pinion, in communication with both the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction; and
an actuatable clutch mechanism for preventing the simultaneous movement of the outer sheath and the pusher when engaged.
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Accused Products
Abstract
A delivery system comprising an endoluminal device, an outer sheath that radially surrounds the endoluminal device, a pusher positioned at one end of the endoluminal device, and a linkage between the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction. This delivery system is particularly useful for endoluminal devices that foreshorten, and may comprise the outer sheath moving a first distance (d1) and the pusher moving a second distance (d2), where d2/d1 is approximately equal to the foreshortening ratio. The delivery system of this invention enables a foreshortening device, such as a vena cava filter, or stent, graft, or combination thereof, to be deployed with its end in a precise deployment location without foreshortening causing the end to move from the deployment location as the stent expands.
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Citations
38 Claims
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1. A delivery system for an endoluminal device, the delivery system comprising:
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an endoluminal device having a compressed configuration; an outer sheath that radially surrounds the endoluminal device in the compressed configuration; a pusher positioned at one end of the endoluminal device; a linkage, comprising a first pinion and a second pinion coaxially coupled to the first pinion, in communication with both the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction; and an actuatable clutch mechanism for preventing the simultaneous movement of the outer sheath and the pusher when engaged. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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- 21. A manipulator for a delivery system for an endoluminal device, the delivery system comprising an outer sheath that radially surrounds the endoluminal device in a compressed configuration and a pusher positioned at one end of the endoluminal device, the manipulator comprising a first interface for connecting the manipulator in communication with the outer sheath, a second interface for connecting the manipulator in communication with the pusher, a linkage, comprising a first pinion and a second pinion coaxially coupled to the first pinion, coupled to the first and second interface for coordinating movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction, and comprising an actuatable clutch mechanism for preventing simultaneous movement of the outer sheath and the pusher when engaged.
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27. A delivery system adapted to deliver an endoluminal device from a proximal location outside a lumen to a distal location inside the lumen, the delivery system comprising:
the endoluminal device in a compressed configuration, the endoluminal device having a compressed length (LC ), an expanded length (LE), and a foreshortening ratio - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A delivery system for an endoluminal device, the delivery system comprising:
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an endoluminal device having a compressed configuration; an outer sheath that radially surrounds the endoluminal device in the compressed configuration; a pusher positioned at one end of the endoluminal device; a linkage in communication with both the pusher and the outer sheath that coordinates movement of the outer sheath in a first direction with simultaneous movement of the pusher in a second direction opposite the first direction; and an actuatable clutch mechanism coupled to the linkage that reversibly disengages the linkage from the pusher or the outer sheath, or both.
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Specification