Stent valve and method of using same
First Claim
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1. A stent valve, said stent valve being insertable in a body vessel containing a body fluid, said stent valve comprising:
- a valve for at least partially controlling the flow of the body fluid in the body vessel; and
a scaffold, said scaffold including an anchoring section for anchoring said scaffold to said body vessel; and
a valve supporting section supporting said valve;
said scaffold being substantially radially expandable from a scaffold retracted configuration to a scaffold expanded configuration;
wherein said valve supporting section is expandable over a greater range of radial expansion than said anchoring section.
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Abstract
A stent valve insertable in a body vessel containing a body fluid. The stent valve includes: a valve for at least partially controlling the flow of the body fluid in the body vessel; and a scaffold, the scaffold including : an anchoring section for anchoring the scaffold to said body vessel and a valve supporting section supporting the valve. The scaffold is substantially radially expandable from a scaffold retracted configuration to a scaffold expanded configuration. The valve supporting section is expandable over a greater range of radial expansion than the anchoring section.
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Citations
40 Claims
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1. A stent valve, said stent valve being insertable in a body vessel containing a body fluid, said stent valve comprising:
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a valve for at least partially controlling the flow of the body fluid in the body vessel; and
a scaffold, said scaffold including an anchoring section for anchoring said scaffold to said body vessel; and
a valve supporting section supporting said valve;
said scaffold being substantially radially expandable from a scaffold retracted configuration to a scaffold expanded configuration;
wherein said valve supporting section is expandable over a greater range of radial expansion than said anchoring section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A stent valve, said stent valve being insertable in a body vessel containing a body fluid, said stent valve comprising:
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a valve for at least partially controlling the flow of the body fluid in the body vessel; and
a scaffold, said scaffold including an anchoring section for anchoring said scaffold to said body vessel;
a valve supporting section supporting said valve;
said scaffold being substantially radially expandable between a scaffold retracted configuration and a scaffold expanded configuration, wherein in said scaffold retracted configuration, said anchoring and valve supporting sections respectively define an anchoring section and a valve supporting section retracted diameter;
in said expanded configuration, said anchoring and valve supporting sections respectively define an anchoring section and a valve supporting section expanded diameter;
said valve supporting section expanded diameter is greater than said anchoring section expanded diameter.
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36. A method for expanding a stent valve in a body vessel containing a body fluid, the body vessel including a vessel first section having a vessel first section cross-sectional area and a vessel second section having a vessel second section cross-sectional area smaller than the vessel first section cross-sectional area, the stent valve having an anchoring section for anchoring the scaffold to the body vessel and a valve supporting section supporting the valve, said method comprising:
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inserting the stent valve in the body vessel;
positioning the stent valve so that the anchoring section is substantially in register with the vessel second section and the valve supporting section is substantially in register with the vessel first section;
substantially radially expanding the anchoring section so that the anchoring section anchors the stent valve to the vessel second section; and
substantially radially expanding the valve supporting section so that the valve supporting section is substantially radially expanded to extend over a surface having a cross-sectional area larger than the vessel second section cross-sectional area. - View Dependent Claims (37, 38, 39, 40)
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Specification