Medical stent with variable coil and related methods
First Claim
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1. A medical stent comprising:
- a first section defining a lumen and comprising a substantially planar, spiral first coil completing more than one revolution, wherein the first coil revolves in an ever increasing distance about an axis of the stent from an origin of the coil to an end of the coil;
a second section defining a lumen and comprising a second coil, the second coil being generally perpendicular to the first coil; and
a third section disposed between the first section and the second section, the third section generally extends along, and is substantially coaxial with, said axis.
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Abstract
A medical stent includes a first section which includes a first material, defines a lumen, and includes a first coil completing more than one revolution. The first coil revolves about and is coaxial with an axis, expanding and opening as it revolves from the origin of the first coil. A second section of the stent includes a second material, defines a lumen, and includes a second coil completing at least one revolution. A third section defines a lumen and is located between the first and second sections. The third section includes a co-extrusion of the first and second materials. One of the first or second sections is harder than the other section.
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Citations
10 Claims
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1. A medical stent comprising:
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a first section defining a lumen and comprising a substantially planar, spiral first coil completing more than one revolution, wherein the first coil revolves in an ever increasing distance about an axis of the stent from an origin of the coil to an end of the coil; a second section defining a lumen and comprising a second coil, the second coil being generally perpendicular to the first coil; and a third section disposed between the first section and the second section, the third section generally extends along, and is substantially coaxial with, said axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification