Retrievable stent and method of use thereof
First Claim
1. A removable stent comprising a stent and a lasso:
- the stent having an inner lumen, an outer surface and two opened ends, wherein at least one opened end is collapsible; and
the lasso positioned toward the end of the stent that is collapsible, wherein a portion of the lasso is engageable with a removal tool within the inner and/or outer lumen of the stent.
11 Assignments
0 Petitions
Accused Products
Abstract
A removable stent system and method for extraction of a removable stent from a target site is disclosed. The removable stent includes-a removable stent having a collapsible end and a collapsing element configured for coupling with a removal tool. The collapsing element can be configured as a lasso or can be movable between two positions when deployed at a target site in vivo. The removable stent overcomes disadvantages and limitations of previous types of stents as well as overcoming complications during or following stent deployment in vivo. The removable stent further includes features that increase its ease of use and reduce the maneuvering required of devices or tools used to remove the stent. This then decreases the amount of effort required by the physician, the procedure time, and the level of discomfort experienced by a patient during the procedure.
406 Citations
29 Claims
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1. A removable stent comprising a stent and a lasso:
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the stent having an inner lumen, an outer surface and two opened ends, wherein at least one opened end is collapsible; and
the lasso positioned toward the end of the stent that is collapsible, wherein a portion of the lasso is engageable with a removal tool within the inner and/or outer lumen of the stent. - View Dependent Claims (2)
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3. A removable stent, comprising:
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a stent having an inner lumen, an outer surface, and two opened ends, wherein at least one opened end is collapsible; and
a collapsing element having first and second ends, the first end coupled to the stent and the second end being free, wherein at least a portion of the collapsing element between its first and second end is coupled to the outer surface of the stent, and the second end is substantially within the inner lumen of the stent. - View Dependent Claims (4)
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5. A removable stent comprising:
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a stent having an inner lumen, an outer surface, and two opened ends, wherein at least one opened end is collapsible; and
a collapsing element located on said stent, said collapsing element being movable between a first and a second position, wherein the collapsing element is in a down position when in the first position. - View Dependent Claims (6)
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7. A stent removal system comprising:
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a removable stent having an inner lumen, an outer surface, two opened ends, wherein at least one opened end is collapsible;
a lasso positioned toward the end of the stent that is collapsible, wherein a portion of the lasso is disposed within the inner and/or outer lumen and includes an engagement coupling for receiving a removal tool; and
a removal tool having at least one end configured for engaging with said engagement coupling. - View Dependent Claims (8)
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9. A stent removal system comprising:
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a stent having an inner lumen, an outer surface, and two opened ends, wherein at least one opened end is collapsible;
a collapsing element having a first end and a second end, the first end coupled to the stent and the second end being free, wherein a portion of the collapsing element between the first and second end is in contact with the outer surface of the stent and the second end is within the inner lumen of the stent; and
a removal tool having at least one end configured to engage said free end of the collapsing element. - View Dependent Claims (10)
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11. A stent removal system comprising:
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a stent having an inner lumen, an outer surface, and two opened ends, wherein at least one opened end is collapsible;
a collapsing element movable between a first and a second position, wherein the collapsing element is normally placed in the first position when deployed in a target site in vivo; and
a removal tool having a first and a second end, wherein the first end is configured to engage the collapsing element. - View Dependent Claims (12, 13, 15, 16, 18, 19, 20)
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14. A removable stent comprising:
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a stent having an inner surfact, an outer surface, and two open ends, wherein at least one open end is collapsible and includes at least one loop disposed towards said open end; and
a collapsing element supported by said at least one loop.
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17. A removable stent comprising:
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a stent having an inner lumen, an outer surface, and two open ends, wherein at least one open end is collapsible; and
a collapsing element clipped onto said external surface of said stent.
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21. A method of removing a stent from a target site comprising:
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providing a removable stent having an inner lumen, an outer surface, a collapsible end and a collapsing element, wherein at least a portion of said collapsing element contacts said outer surface of said removable stent;
maneuvering a tool toward said removable stent such that said tool engages said collapsing element;
compressing said collapsible open end of said removable stent through continued engagement of said collapsing element; and
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removing said removable stent from said target site. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification