Apparatus and methods for occluding a hollow anatomical structure
First Claim
1. A clamping device for implantation into a patient and occluding an appendage of the heart of the patient, the device comprising:
- a clamp having at least first and second clamping portions adapted to be placed on opposite sides of the appendage, at least one of said first and second clamping portions being movable toward the other of said first and second clamping portions from an open position into a clamping position to occlude the appendage,said clamp comprising an annular shaped structure configured to surround the appendage in the open position and a flattened shape in the clamping position configured to occlude the hollow interior of the appendage,wherein said first and second clamping portions have tissue engaging surfaces for engaging the appendage in the clamping position, and said first and second clamping portions are surrounded by an annular fabric structure that promotes tissue ingrowth, said annular fabric structure forming a closed continuous configuration lengthwise around said annular shaped structure.
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Accused Products
Abstract
A device for occluding a hollow anatomical structure includes a clamp having at least first and second clamping portions adapted to be placed on opposite sides of the anatomical structure. At least one of the first and second clamping portions is movable toward the other from an open position to a clamping or closed position to occlude the anatomical structure. The clamp has an annular shape configured to surround the hollow anatomical structure in the open position and a flattened shape in the clamping position configured to occlude the hollow interior of the anatomical structure. The clamp is preferably covered with fabric to promote tissue ingrowth. A clamp delivery and actuation device is provided for allowing the clamp to be applied in either an open surgical procedure or a minimally invasive procedure.
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Citations
20 Claims
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1. A clamping device for implantation into a patient and occluding an appendage of the heart of the patient, the device comprising:
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a clamp having at least first and second clamping portions adapted to be placed on opposite sides of the appendage, at least one of said first and second clamping portions being movable toward the other of said first and second clamping portions from an open position into a clamping position to occlude the appendage, said clamp comprising an annular shaped structure configured to surround the appendage in the open position and a flattened shape in the clamping position configured to occlude the hollow interior of the appendage, wherein said first and second clamping portions have tissue engaging surfaces for engaging the appendage in the clamping position, and said first and second clamping portions are surrounded by an annular fabric structure that promotes tissue ingrowth, said annular fabric structure forming a closed continuous configuration lengthwise around said annular shaped structure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A clamping device for implantation into a patient and occluding an appendage of the heart of the patient, the device comprising:
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a clamp having at least first and second concave clamping portions adapted to be placed on opposite sides of the appendage to form a generally oval shape, at least one of said first and second clamping portions being movable under spring bias toward the other of said first and second clamping portions from an open position into a clamping position and locked in place in the clamping position to occlude the appendage, said clamp configured as an annular shared structure to surround the appendage in the open position and assume a flattened shape in the clamping position to occlude the hollow interior of the appendage, and an annular fabric structure surrounding each of said first and second clamping portions, wherein said fabric prevents the clamp from slipping on the appendage and promotes ingrowth of tissue, said annular fabric structure forming a closed continuous configuration lengthwise around said annular shared structure. - View Dependent Claims (8, 9)
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10. A device for implantation into a patient and occluding a appendage of the patient, the device comprising:
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a clamp having at least first and second concave clamping portions adapted to be placed on opposite sides of the appendage to form a generally oval shape, at least one of said first and second clamping portions being movable toward the other of said first and second clamping portions from an open position into a clamping position and locked in place in the clamping position to occlude the appendage, said clamp configured as an annular shared structure to surround the appendage in the open position and assume a flattened shape in the clamping position to occlude the appendage, and said one of said first and second clamping portions being movable toward the other of said first and second clamping portions to an over-center position at which said one of said first and second clamping portions is spring biased toward the other of said first and second clamping portions, and an annular fabric structure surrounding each of said first and second clamping portions to prevent the clamp from slipping on the appendage, and wherein said fabric promotes tissue ingrowth, said annular fabric structure forming a closed continuous configuration lengthwise around said annular shared structure. - View Dependent Claims (11, 12)
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13. Clamping apparatus for implantation into a patient and occluding an appendage of the heart of the patient, the device comprising:
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a clamp delivery and actuation device including first and second jaws, and an actuator configured to move at least one of said first and second jaws toward the other of said first and second jaws, and a clamp having at least first and second clamping portions releasably secured between said first and second jaws and adapted to be placed on opposite sides of the appendage, at least one of said first and second clamping portions being movable toward the other of said first and second clamping portions from an open position into a clamping position by said one of said first and second jaws to occlude the appendage, said clamp comprising an annular shaped structure configured to surround the appendage in the open position and a flattened shape in the clamping position configured to occlude the hollow interior of the appendage, wherein said first and second clamping portions have tissue engaging surfaces for engaging the appendage in the clamping position, and said tissue engaging surfaces formed by an annular fabric structure that promotes tissue ingrowth, said annular fabric structure forming a closed continuous configuration lengthwise around said annular shared structure. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification