Stent
First Claim
1. A stent for insertion into a lumen of a patient, comprising:
- a proximal portion;
a distal portion; and
a body portion disposed between the proximal and distal portions and having an upper surface and a lower surface, the entire body portion being substantially planar when the body portion is in a delivery state and having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion so that a width of the body portion decreases as the body portion is inserted into the lumen.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent is deployed within a body passageway. The stent is configured to curl a varying degree upon itself as the stent is inserted into the passageway depending on the size of the passageway. In this way a single size stent may be employed in different size passageways. The stent may have a generally rectangular shape or other shape. The stent may be made of one or more materials. For example, a spine of the stent may be made of a material different than a material used for the outer edges of the stent. The edges of the stent curl towards the spine during insertion into the passageway without any further manipulation of the stent or by application of any additional mechanical means. The stent may have a varying thickness and/or width along the longitudinal axis of the stent.
77 Citations
27 Claims
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1. A stent for insertion into a lumen of a patient, comprising:
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a proximal portion; a distal portion; and a body portion disposed between the proximal and distal portions and having an upper surface and a lower surface, the entire body portion being substantially planar when the body portion is in a delivery state and having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion so that a width of the body portion decreases as the body portion is inserted into the lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A self-deploying stent for placement in a lumen of a patient, the stent comprising:
a body member comprising a pliant material and being movable between a first cross-sectional shape when in a delivery state and a second cross-sectional shape when in a deployed state, the first cross-sectional shape being adapted to have an overall width greater than the second cross-sectional shape and greater than an inside diameter of the lumen, and the body member having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion when the body member is moved from the first cross-sectional shape to the second cross-sectional shape while the stent is being inserted into the lumen, the entire body member being substantially planar when the body member is in the first cross-sectional shape. - View Dependent Claims (19, 20)
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21. A self-deploying stent for placement in a lumen of a patient, the stent comprising:
a body member being adapted to be movable between a first cross-sectional shape and a second cross-sectional shape so that when a first portion of the body member is disposed inside the lumen and a second portion of the body member is disposed outside the lumen the first portion has the second cross-sectional shape and the second portion has the first cross-sectional shape, the first cross-sectional shape being adapted to have an overall width greater than an inside diameter of the lumen, and wherein the first portion comprises lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion when the first portion is dispose inside the lumen so that a width of the first portion decreases as the first portion is inserted into the lumen, the entire body member being substantially planar when the body member is in the first cross-sectional shape. - View Dependent Claims (22)
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23. A method of using a stent, the method comprising:
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aligning a stent having an overall width that is greater than a width of a lumen of a patient with an opening into the lumen; pushing a portion of the stent through the opening and into the lumen, the portion having lateral edge portions and a center portion, the entire portion being substantially planar before the stent enters the opening; and as the stent is entering the opening, curling the lateral edge portions towards the center portion of the stent so that a width of the portion decreases before the entire stent is inserted into the lumen. - View Dependent Claims (24)
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25. A stent for insertion into a lumen of a patient, comprising:
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a proximal portion; a distal portion; and a body portion disposed between the proximal and distal portions and having an upper surface and a lower surface, the body portion having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion so that a width of the body portion decreases as the body portion is inserted into the lumen, wherein the body portion has a first thickness, the proximal portion has a second thickness, and the distal portion has a third thickness, and wherein the first thickness is different from at least one of the second and the third thickness.
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26. A stent for insertion into a lumen of a patient, comprising:
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a proximal portion; a distal portion; and a body portion disposed between the proximal and distal portions and having an upper surface and a lower surface, the body portion having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion so that a width of the body portion decreases as the body portion is inserted into the lumen, wherein a first portion of the body portion comprises a first width, wherein a second portion of the body portion comprises a second width, and wherein the first width is different from the second width.
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27. A stent for insertion into a lumen of a patient, comprising:
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a proximal portion; a distal portion; and a body portion disposed between the proximal and distal portions and having an upper surface and a lower surface, the body portion having lateral edge portions and a center portion, the lateral edge portions being adapted to curl towards the center portion so that a width of the body portion decreases as the body portion is inserted into the lumen, wherein the body portion forms a spiral shape such that at least one of the lateral edge portions overlaps the other lateral edge portion when in a deployed state.
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Specification