Closure device and methods for making and using them
First Claim
1. A method for facilitating closure of an opening in a body luminal wall, comprising:
- positioning an expandable locator having at least one expandable element through the opening to engage the at least one expandable element with an internal surface of the body luminal wall when the at least one expandable element is in an expanded orientation;
positioning a clip relative to the expandable locator, the clip comprising a body and one or more tines having free distal ends extending from the body, the body being movable by a force from a planar, first configuration where the tines generally extend toward a central axis into a transverse, pre-deployment second configuration in which the tines are spread open and generally extend in the direction of the central axis;
deploying the clip in the transverse, pre-deployment configuration so that the free distal ends penetrate tissue adjacent the opening in the body luminal wall, the clip automatically returning toward the first planar configuration after engaging the tissue to draw the tissue around the opening to facilitate closure thereof; and
removing the expandable locator through the opening in the body luminal wall.
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Accused Products
Abstract
A clip for engaging tissue includes a generally annular-shaped body defining a plane and disposed about a central axis extending normal to the plane. The body includes alternating inner and outer curved regions, defining a zigzag pattern about a periphery of the clip. The body is biased towards a planar configuration lying in the plane and deflectable towards a transverse configuration extending out of the plane. Tines extend from the inner curved regions, the tines being oriented towards the central axis in the planar configuration, and parallel to the central axis in the transverse configuration. The tines may include primary tines and secondary tines that are shorter than the primary tines. The primary tines may be disposed on opposing inner curved regions and oriented towards one another such that they overlap in the planar configuration.
945 Citations
21 Claims
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1. A method for facilitating closure of an opening in a body luminal wall, comprising:
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positioning an expandable locator having at least one expandable element through the opening to engage the at least one expandable element with an internal surface of the body luminal wall when the at least one expandable element is in an expanded orientation; positioning a clip relative to the expandable locator, the clip comprising a body and one or more tines having free distal ends extending from the body, the body being movable by a force from a planar, first configuration where the tines generally extend toward a central axis into a transverse, pre-deployment second configuration in which the tines are spread open and generally extend in the direction of the central axis; deploying the clip in the transverse, pre-deployment configuration so that the free distal ends penetrate tissue adjacent the opening in the body luminal wall, the clip automatically returning toward the first planar configuration after engaging the tissue to draw the tissue around the opening to facilitate closure thereof; and removing the expandable locator through the opening in the body luminal wall. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for facilitating closure of an opening in a body luminal wall, comprising:
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positioning an expandable locator against an internal surface of the body luminal wall to engage at least one expandable element of the locator with the body luminal wall; positioning an annular clip relative to the expandable locator, the annular clip comprising a body and one or more tines having free distal ends extending from the body, the body being moveable by a force from the planar, first configuration where the tines generally extend toward a central axis into a transverse, pre-deployment second configuration in which the tines are spread open and generally extend in the direction of the central axis; slidably deploying the annular clip in the transverse, pre-deployment configuration so that the free distal ends penetrate an external surface of the body luminal wall adjacent the opening in the body luminal wall, the annular clip automatically returning toward the first planar configuration after engaging the external surface as the locator is removed to draw the external surface adjacent the opening toward the opening to facilitate closure thereof; and removing the expandable locator, after deploying the annular clip, through the opening in the body luminal wall so as to close the opening. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for facilitating closure of an opening in a body luminal wall, comprising:
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positioning an expandable locator against an internal surface of the body luminal wall such that at least one expandable element of the locator in an expanded orientation contacts the internal surface adjacent the opening in the body luminal wall; positioning an annular clip relative to the expandable locator, the annular clip comprising a body and one or more tines having free distal ends extending from the body, the body being moveable by a force from the planar, first configuration where the tine extend toward a central axis into a transverse, pre-deployment second configuration in which the tines are spread open and generally extend in the direction of the central axis and proximate to an external surface adjacent the opening in the body luminal wall; removing the expandable locator through the opening in the body luminal wall; and deploying the annular clip in the transverse, pre-deployment configuration so that the free distal ends penetrate tissue adjacent the opening in the body luminal wall, the clip automatically returning toward the first planar configuration after engaging the tissue and after removing the expanded locator to draw the tissue around the opening to facilitate closure thereof. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification