Back to results
US 2011/0238160 A1Published application
Bifurcated Stent with Variable Length Branches
AssigneeMedtronic Vascular, Inc.
InventorNoreen Molony
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMedtronic Vascular, Inc.
InventorNoreen Molony
Estimating the term…
A bifurcated stent includes a trunk portion and first and second branches. At least one of the branches includes a longitudinally extendable portion such that the branch can be extended from a first length up to second length. The longitudinally extendable portion may be formed of a plurality of cylindrical rings coupled to each other by a curved link, wherein pulling the branch straightens the curved link, thereby lengthening the branch. The longitudinally extendable portion may be formed by winding a portion of a continuous wire of the branch at a first pitch whereas the remainder of the branch is wound at a second pitch greater than the first pitch. Thus, when the branch is pulled, the pitch of the longitudinally extendable portion increases, thereby lengthening the branch. A method of deploying a stent with a longitudinally extendable portion is also disclosed.
1-12. (canceled)
The bifurcated stent of claim 23, wherein the longitudinally extendable portion of the first branch is formed from a first portion of the second continuous wire wound spirally at a first pitch, wherein a remainder of the first branch is formed from a second portion of the second continuous wire wound spirally at a second pitch, wherein the first pitch is smaller than the second pitch.
The bifurcated stent of claim 24, wherein the second branch includes a second longitudinally extendable portion structured such that a user may transform the second branch from the third configuration to the fourth configuration prior to installation in a patient.
The bifurcated stent of claim 22, wherein first branch is coupled to the trunk portion at a weld point.
The bifurcated stent of claim 22, further comprising a link coupling the trunk portion to the first branch.
20-21. (canceled)
A bifurcated stent comprising:
Dependencies are inferred from the claim text.