EP0722701A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Y-shaped stent and method for positioning such a stent
Assignee: RIGITEC B.V.
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Filing: 1996-01-18
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Granted: —
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Expires: 2016-01-18
Abstract
Abstract The invention provides a Y-shaped stent, in particular one which is used to reinforce the bifurcation of the aorta into the arteries leading to the lower limbs respectively, to replace a bifurcation prosthesis implanted during conventional surgery. This Y-shaped stent comprises a first stent arranged inside the aorta at the level of the bifurcation and at least two cylindrical stents, each of which is placed with a first section inside an artery branching off and with the remaining section inside the lumen of the first stent.
Inventors
- 👤 Hendrik Glastra
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2002/065
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
70 words
Y-shaped stent, particularly used for the purpose of reinforcing the bifurcation of the aorta into the arteries leading to the lower limbs respectively, characterised by a first stent arranged inside the aorta at the level of the bifurcation and at least two cylindrical stents, each of which is positioned with a first section inside an artery branching off and with the remaining section inside the lumen of the first stent.
Claim 2
Dependent Claim
30 words
Stent as claimed in claim 1, characterised in that the first stent has a cone-shaped lumen of which the end with the largest diameter is directed away from the bifurcation.
Claim 3
Dependent Claim
34 words
Stent as characterised in claims 1 and 2, characterised in that the section of each cylindrical stent positioned inside the first stent, extends beyond the final edge with the largest diameter of this stent.
Claim 4
Dependent Claim
20 words
Stent as characterised in claims 1-3 inclusive, characterised in that the outside surface of the first stent is also cone-shaped.
Claim 5
Dependent Claim
89 words
Method for forming a Y-shaped stent inside the aorta and the arteries branching off and leading to the lower limbs respectively, comprising the following steps: positioning a first, expandable stent by means of a positioning balloon inside the aorta above the bifurcation, and positioning an expandable cylindrical stent in each of the arteries branching off at the bifurcation by means of a positioning balloon in such a way that this stent is positioned partially inside the artery branching off and partially extends into the lumen of the first stent.
Claim 6
Dependent Claim
46 words
Method as claimed in claim 5, characterised in that a stent with a cone-shaped lumen is employed by way of the first stent and that this stent is positioned in such a way that the end with the largest diameter is directed away from the bifurcation.
Claim 7
Dependent Claim
38 words
Method as claimed in claims 5-6 inclusive, characterised in that both cylindrical stents are positioned in such a way that the section positioned inside the lumen of the first stent extends beyond the edge with the largest diameter.
References Cited (Backward Citations)
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