Apparatus and method for deployment of an endoluminal device
First Claim
1. An introducer for deployment of an endoluminal device in a distal location from a proximal location, the introducer comprising:
- a retrograde portion;
an anterograde portion, axially moveable relative to the retrograde portion, comprising a distal tip and an anterograde sheath attached proximally to the distal tip;
a shaft attached to the distal tip and extending concentrically through a central lumen defined by the anterograde portion and retrograde portion;
an endoluminal device mounted concentrically over the shaft in the central lumen and having a distal end contained by the anterograde portion and a proximal end contained by the retrograde portion; and
an inflatable balloon mounted radially outside the retrograde portion.
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Accused Products
Abstract
An introducer deploys an endoluminal device in a distal location from a proximal location. The introducer comprises a retrograde portion, an anterograde portion axially moveable relative to the retrograde portion, a shaft having a distal tip and an anterograde sheath attached to the distal tip, and an inflatable balloon mounted radially outside the retrograde portion for anchoring the device during deployment from its proximal end to its distal end. The retrograde portion may comprise bilumen tubing having an external wall, an internal wall that defines a central lumen radially inward of the internal wall, and an annular lumen in fluid communication with the balloon defined between the external wall and the internal wall.
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Citations
22 Claims
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1. An introducer for deployment of an endoluminal device in a distal location from a proximal location, the introducer comprising:
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a retrograde portion;
an anterograde portion, axially moveable relative to the retrograde portion, comprising a distal tip and an anterograde sheath attached proximally to the distal tip;
a shaft attached to the distal tip and extending concentrically through a central lumen defined by the anterograde portion and retrograde portion;
an endoluminal device mounted concentrically over the shaft in the central lumen and having a distal end contained by the anterograde portion and a proximal end contained by the retrograde portion; and
an inflatable balloon mounted radially outside the retrograde portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An introducer for deployment of a self-expanding endoluminal device in a distal location from a proximal location, the introducer comprising:
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a retrograde portion having a distal end and comprising coaxial bitumen tubing having an external wall, an internal wall, a balloon located radially outward of the external wall at or near the retrograde portion distal end for anchoring the endoluminal device during deployment of the device from the device proximal end to the device distal end, a retrograde central lumen defined radially inward of the internal wall, and an annular lumen defined between the external wall and the internal wall, the annular lumen in fluid communication with the balloon;
an anterograde portion comprising a distal tip, an anterograde sheath attached proximally to the distal tip, and an anterograde central lumen defined radially inward of the anterograde sheath;
an endoluminal device mounted concentrically over the shaft in the retrograde and anterograde central lumens, the device distal end contained by the anterograde portion and the device proximal end contained by the retrograde portion, the retrograde portion having a length sufficient to be engaged by the balloon against the lumen wall; and
a shaft attached to the distal tip and extending concentrically through the anterograde and retrograde central lumens, the shaft comprising at least a first radiopaque marker that marks the proximal end of the endoluminal device and adapted for moving the anterograde portion relative to the retrograde portion.
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17. A method for deployment of an endoluminal device in a distal location in a body lumen from a proximal location, the method comprising the steps of:
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(a) inserting an introducer into the body lumen having a lumen wall, the introducer comprising a retrograde portion, an anterograde portion comprising a distal tip and an anterograde sheath attached proximally to the distal tip, a shaft attached to the distal tip and extending concentrically through a central lumen defined by the anterograde portion and retrograde portion, an endoluminal device mounted concentrically over the shaft in the central lumen and having a distal end contained by the anterograde portion and a proximal end contained by the retrograde portion, and an inflatable balloon mounted radially outside the retrograde portion for anchoring the endoluminal device during deployment of the device;
(b) aligning the proximal end of the device in a deployment location;
(c) retracting the retrograde portion to allow a proximal portion including the proximal end of the endoluminal device to deploy;
(d) advancing the retrograde portion so that the balloon is aligned axially within the proximal portion of the device;
(e) inflating the balloon to compress the proximal portion of the endoluminal device against the lumen wall; and
(f) extending the shaft to distally advance the anterograde sheath to deploy a remaining portion of the endoluminal device. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification