Modular bifurcated vascular prosthesis
First Claim
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1. A bifurcated vascular prosthesis, comprising a tubular main branch extended by at least two sub-branches, wherein:
- the main branch is comprised of an expandable material;
at least one part of the main branch has an expandable strengthener in the form of an expandable annular section;
each sub-branch has at least one expandable zone longitudinally offset to avoid overlapping of corresponding longitudinally offset expandable zones between sub-branches; and
an end of the main branch opposite to the bifurcation is formed by a partially reinforced tubular section, wherein a part of said expandable material of said tubular section has been stripped away to facilitate adherence to an artery.
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Abstract
A bifurcated vascular prosthesis including a tubular main branch extended by at least two sub-branches, wherein at least one part of the main branch has an expandable strengthener in the form of an expandable annular section; and each sub-branch has at least one expandable zone longitudinally offset to avoid overlapping of corresponding longitudinally offset expandable zones between sub-branches.
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Citations
11 Claims
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1. A bifurcated vascular prosthesis, comprising a tubular main branch extended by at least two sub-branches, wherein:
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the main branch is comprised of an expandable material;
at least one part of the main branch has an expandable strengthener in the form of an expandable annular section;
each sub-branch has at least one expandable zone longitudinally offset to avoid overlapping of corresponding longitudinally offset expandable zones between sub-branches; and
an end of the main branch opposite to the bifurcation is formed by a partially reinforced tubular section, wherein a part of said expandable material of said tubular section has been stripped away to facilitate adherence to an artery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
the main branch is made of PTFE reinforced with one or more expandable annular sections; and
each sub-branch narrows towards its distal end.
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11. The prosthesis of claim 10, wherein:
the main branch is adapted to be expanded up to a diameter of approximately 28 mm, and the sub-branches have a diameter of approximately 10 mm.
Specification