Method and system for attaching a graft to a blood vessel
AssigneeCardica, Inc.
InventorsStephen A. Yencho, Bernard A. Hausen
Life of this patent
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Abstract
Anastomotic stents for connecting a graft vessel to a target vessel, and methods of use thereof. The anastomotic stents of the invention are suitable for use in a variety of anastomosis procedures, including coronary artery bypass grafting. One embodiment of the invention comprises a large vessel anastomotic stent for use with large diameter target vessels such as the aorta or its major side branches. Another embodiment of the invention comprises a small vessel anastomotic stent for use on a target vessel which has a small diameter such as a coronary artery. Another aspect of the invention involves applicators for use with the stents of the invention.
Claims25
A system for performing anastornosis between a graft vessel and a target vessel, each having a lumen therethrough, where an opening is present in wall of the target vessel;
- the system comprising:
- an inner element connectable to the grail vessel, said inner element including a unitary body having a closed perimeter and an opening therethrough within said perimeter;
- wherein said inner element is substantially oblong such that said inner element includes opposed long-dimensioned sides and opposed short-dimensioned sides;
- and wherein opposed sides of said inner element are movable toward one another such that said unitary body is deformable from a first configuration to a second configuration and deformable back to said first configuration from said second configuration.
A system for performing anastomosis between a graft vessel and a target vessel, each having a lumen therethrough, where an opening is present in the wall of the target vessel;
- the system comprising:
- a single elastically deformable inner element connectable to the graft vessel, said inner element deflectable from a first configuration to a second configuration and expandable from said second configuration to said first configuration, wherein said second configuration allows at least a portion of said inner element to enter the lumen of the target vessel through the opening, and wherein said inner flange includes a continuous collapsible section;
- and
- an outer element connectable to said inner element to compress a portion of the graft vessel and a portion of the target vessel therebetween.
A method for performing anastomosis between a graft vessel and a target vessel, each having a lumen therethrough, where an opening is present in the target vessel, comprising:
- providing an outer element and an inner element, said inner element including a unitary body having a closed perimeter and an opening therethrough within said perimeter;
- and wherein said inner element is substantially oblong such that said inner element includes opposed long-dimensioned sides and opposed short-dimensioned sides;
- deforming at least a portion of said unitary body from an initial configuration to a compressed configuration by moving opposed sides of said inner element toward one another;
- inserting at least part of said unitary body into the opening;
- expanding at least a portion of said unitary body from said compressed configuration to said initial configuration;
- and
- compressing a portion of the target vessel and a portion of the graft vessel together between at least a portion of said inner element and at least a portion of said outer element.
Dependencies are inferred from the claim text.