STENT STRUCTURES FOR USE WITH VALVE REPLACEMENTS
First Claim
1. A medical device for implantation in a patient, the medical device comprising:
- a stent comprising;
a proximal region comprising a cylindrical shape having a first outer diameter when the stent is in an expanded state;
a distal region comprising a cylindrical shape having a second outer diameter when the stent is in the expanded state, where the second outer diameter is greater than the first outer diameter;
a tapered region disposed between the proximal and distal regions, where the tapered region transitions the stent from the first diameter to the second diameter; and
a valve coupled to at least a portion of the stent, the valve having proximal and distal regions, where the proximal region of the valve is at least partially positioned within the proximal region of the stent and the distal region of the valve is at least partially positioned within one of the tapered and distal regions of the stent.
3 Assignments
0 Petitions
Accused Products
Abstract
The present embodiments provide a medical device for implantation in a patient comprising a stent and a valve. The stent comprises a proximal region comprising a cylindrical shape having a first outer diameter in an expanded state, and a distal region comprising a cylindrical shape having a second outer diameter in the expanded state. The second outer diameter is greater than the first outer diameter. A proximal region of the valve is at least partially positioned within the proximal region of the stent, and the distal region of the valve is at least partially positioned within one of tapered and distal regions of the stent. When implanted, the proximal region of the stent and the proximal region of the valve are aligned with a native valve, and the distal region of the valve is distally spaced-apart from the native valve.
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Citations
20 Claims
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1. A medical device for implantation in a patient, the medical device comprising:
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a stent comprising; a proximal region comprising a cylindrical shape having a first outer diameter when the stent is in an expanded state; a distal region comprising a cylindrical shape having a second outer diameter when the stent is in the expanded state, where the second outer diameter is greater than the first outer diameter; a tapered region disposed between the proximal and distal regions, where the tapered region transitions the stent from the first diameter to the second diameter; and a valve coupled to at least a portion of the stent, the valve having proximal and distal regions, where the proximal region of the valve is at least partially positioned within the proximal region of the stent and the distal region of the valve is at least partially positioned within one of the tapered and distal regions of the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A medical device for implantation in a patient, the medical device comprising:
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a stent having proximal and distal regions, and further comprising delivery and expanded states; a plurality of closed cells disposed at various locations between the proximal and distal regions of the stent, where each closed cell has an overall length, when the stent is in the expanded state, that is greater than a length of every other closed cell that is disposed proximally thereof; and a valve coupled to at least the proximal region of the stent. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A medical device for implantation in a patient, the medical device comprising:
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a stent comprising; a proximal region comprising a cylindrical shape having a first outer diameter when the stent is in an expanded state; a distal region comprising a cylindrical shape having a second outer diameter when the stent is in the expanded state, where the second outer diameter is greater than the first outer diameter; a tapered region disposed between the proximal and distal regions, where the tapered region transitions the stent from the first diameter to the second diameter; and a valve having proximal and distal regions, where the proximal region of the valve is positioned at least partially within the proximal region of the stent, and where at least a portion of the valve is mechanically coupled to one of the tapered and distal regions of the stent. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification