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US 12,004,980 B2Granted
Advanced endovascular graft and delivery system
AssigneeTriVascular, Inc.
InventorsJenine S. Vinluan, William P. Stephens, Mark Geusen, Carl H. Poppe, Christopher L Staudenmayer, Michael V. Chobotov, James R. Watson, Teresa Woodson
Life of this patent
Estimating the term…
Abstract
Embodiments are directed in part to endovascular prostheses and methods of deploying same. Embodiments may be directed more specifically to stent grafts and methods of positioning and deploying such devices within the body of a patient.
Claims20
A delivery system for delivering a stent graft, comprising:
- a delivery catheter comprising an elongate shaft;
- a stent graft having a stent portion and a main graft body with an inner lumen, the stent graft being loaded on a section of the delivery catheter such that the elongate shaft is disposed within the inner lumen;
- an expandable device having an expandable portion, the expandable portion disposed on the elongate shaft within the inner lumen and configured to fully radially expand within the inner lumen to radially expand the main graft body;
- and
- a constraining device configured to radially constrain the stent portion in a radially constrained state while the main graft body is radially expanded, and
- wherein the expandable device is configured to be expanded prior to deployment of the stent portion of the stent graft.
3 more elements
A method of centering a delivery system during deployment of a stent graft, comprising:
- providing a delivery system for delivering a stent graft, the delivery system comprising:
- a delivery catheter comprising an elongate shaft;
- a stent graft having a stent portion and a main graft body with an inner lumen, the stent graft being loaded on a section of the delivery catheter such that the elongate shaft is disposed within the inner lumen;
- and
- an expandable device having an expandable portion disposed on the elongate shaft within the inner lumen of the main graft body, the expandable portion configured to radially expand within the inner lumen of the main graft body while the stent portion is radially constrained to radially expand the main graft body;
- positioning the delivery catheter within a patient's vessel such that the stent graft is axially positioned at a desired state within the patient's vessel with the expandable device in a radially contracted state;
- expanding the expandable device to a radially expanded state, within the inner lumen of the main graft body, to center the elongate shaft and stent graft of the delivery system toward a longitudinal axis of the patient's vessel;
- and
- deploying a stent of the stent graft so as to engage an inner luminal wall of the patient's vessel, after expanding the expandable device;
- wherein said stent of the stent graft is in a constrained state when the expandable device is fully expanded within the inner lumen of the main graft body, and
- wherein the expandable device is expanded prior to deployment of the stent portion of the stent graft.
8 more elements
A delivery system for delivering a stent graft, comprising:
- a delivery catheter comprising an elongate shaft;
- a stent graft having a stent portion and a main graft body with an inner lumen, the stent graft being loaded on a section of the delivery catheter such that the elongate shaft is disposed within the inner lumen;
- an expandable device having an expandable portion, the expandable portion disposed on the elongate shaft within the inner lumen and configured to fully radially expand within the inner lumen to radially expand the main graft body;
- and
- a constraining device configured to radially constrain the stent portion in a radially constrained state while the main graft body is radially expanded,
- wherein the expandable device comprises an inflatable structure including:
- a collapsed deflated state;
- and
- an enlarged inflated state with a substantially cylindrical configuration including vias that extend from ports in a proximal surface of the expandable device to respective ports in a distal surface of the expandable device;
- wherein the constraining device is configured to radially constrain the stent portion in a radially constrained state while the main graft body is fully radially expanded, and
- wherein the expandable device is configured to be expanded prior to depolyment of the stent portion of the stent graft.
8 more elements
Dependencies are inferred from the claim text.