Flat wire stent
First Claim
1. An improved stent comprising at least one limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,wherein the intermediate straight, flat mid-portion is angled with respect to the short, straight segments at each end in an expanded state,wherein the short, straight segments at each end of the limb are substantially identical to one another,and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in the expanded state.
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention concerns an improved stent in which the limbs have been fabricated from a medium having a cross sectional profile in which at least one segment is flat and straight, whereby the stent is provided with improved expansion characteristics.
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Citations
10 Claims
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1. An improved stent comprising at least one limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,
wherein the intermediate straight, flat mid-portion is angled with respect to the short, straight segments at each end in an expanded state, wherein the short, straight segments at each end of the limb are substantially identical to one another, and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in the expanded state.
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7. An improved stent comprising at least one limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,
wherein the end of each limb has been provided with a barb in order to provide a means of attachment of the stent to the inside of the corporeal lumen, wherein the short, straight segments at each end of the limb are substantially identical to one another, and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in an expanded state.
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8. An improved stent comprising at least one limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,
wherein the end of each limb has been provided with a series of serrations in order to provide a means of attachment of the stent to the inside of the corporeal lumen, wherein the short, straight segments at each end of the limb are substantially identical to one another, and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in an expanded state.
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9. An improved stent comprising at least one limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,
wherein the end of at least one limb comprising the stent has been provided with a hole as an anchor point for the attachment of a delivery system release mechanism, wherein the short, straight segments at each end of the limb are substantially identical to one another, and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in an expanded state.
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10. A stent comprising portions formed by limbs, each limb having a cross sectional profile in which at least one segment is flat and straight, wherein each limb is comprised of two curved portions having opposite directions of curvature, an intermediate straight, flat mid-portion connecting the two curved portions and a short, straight segment at each end,
wherein the intermediate straight, flat mid-portion is angled with respect to the short, straight segments at each end in an expanded state, wherein the short, straight segments at each end of the limb are substantially identical to one another, and wherein the short, straight segments at each end of the limb are joined to a short, straight segment of an adjacent limb to form a point of attachment, wherein the short, straight segments of adjacent limbs meeting at the point of attachment are substantially parallel to one another in an expanded state.
Specification