Endovascular graft system
First Claim
1. A delivery catheter for delivering an endovascular graft system at a desired location within a vessel of a patient'"'"'s vascular system comprising:
- a shaft;
a first graft component positioned about the shaft;
a second graft component positioned about the shaft, the first graft component being positioned distally of the second graft component, the first graft component being configured to be deployed in the vessel prior to deployment of the second graft component, the first and second graft components each having proximal and distal portions, the distal portion of the second graft component being configured to be deployed within the proximal portion of the first graft component;
a retractable sheath defining a lumen containing the shaft and first and second graft components, the sheath being configured to deploy the first graft component when the outer sheath is withdrawn a first distance and to deploy the second graft component when the outer sheath is withdrawn a second distance; and
means for stabilizing the position of the distal portion of the second graft component with respect to the proximal portion of the first graft component when the sheath is being withdrawn the second distance.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides an endovascular graft system for repair of aneurysms. The graft system includes a trunk component and first and second leg components. The graft components include graft material supported by a plurality of stents which are spaced apart and affixed to the graft material in a manner that allows articulation of the graft system without excessive wear of the graft material. The stents are formed by intersecting struts which may be tapered to relieve stress. A stabilizing mechanism is provided to stabilize the position of the legs with respect to the trunk when the graft system is deployed.
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Citations
11 Claims
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1. A delivery catheter for delivering an endovascular graft system at a desired location within a vessel of a patient'"'"'s vascular system comprising:
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a shaft;
a first graft component positioned about the shaft;
a second graft component positioned about the shaft, the first graft component being positioned distally of the second graft component, the first graft component being configured to be deployed in the vessel prior to deployment of the second graft component, the first and second graft components each having proximal and distal portions, the distal portion of the second graft component being configured to be deployed within the proximal portion of the first graft component;
a retractable sheath defining a lumen containing the shaft and first and second graft components, the sheath being configured to deploy the first graft component when the outer sheath is withdrawn a first distance and to deploy the second graft component when the outer sheath is withdrawn a second distance; and
means for stabilizing the position of the distal portion of the second graft component with respect to the proximal portion of the first graft component when the sheath is being withdrawn the second distance. - View Dependent Claims (2, 3, 4, 5)
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6. A delivery catheter for delivering an endovascular graft system at a desired location within a vessel of a patient'"'"'s vascular system comprising:
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a handle;
a shaft connected to the handle;
a first graft component positioned about the shaft;
a second graft component positioned about the shaft, the first graft component being positioned distally of the second graft component, the first graft component being configured to be deployed in the vessel prior to deployment of the second graft component, the first and second graft components each having proximal and distal portions, the distal portion of the second graft component being configured to be deployed within the proximal portion of the first graft component, the distal portion of the second graft component having a fastening element;
a retractable sheath defining a lumen containing the shaft and first and second graft components, the handle being configured to retract the sheath to deploy the first graft component when the outer sheath is retracted a first distance and to deploy the second graft component when the outer sheath is retracted a second distance; and
a stabilizing element connected at one end to the handle and at another end to the fastening element of the second graft component, the handle stabilizing element and fastening element being configured such that the stabilizing element is retracted in a manner that disconnects the stabilizing element from the fastening element when the second graft component is deployed. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification