Method and device for closing holes in tissue
First Claim
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1. A medical apparatus to close a hole in cardiac tissue, the medical apparatus comprising:
- at least one tool; and
a closure device comprising;
a closed band,a central passage open at opposed ends thereof to selectively removably receive a portion of the at least one tool therethrough, anda plurality of barbs disposed radially about the central passage for attachment to the cardiac tissue,wherein the closure device is resiliently biased from a first configuration in which a radial size of the central passage has a first dimension toward a second configuration in which the radial size of the central passage has a second dimension, the second dimension smaller than the first dimension, and a portion of the closure device forming at least part of a periphery of the central passage, the at least part of the periphery of the central passage located radially inward from the plurality of barbs at least in the second configuration, andwherein the at least one tool includes a plurality of arms each with respective distal ends and proximate ends, the distal ends engaging the closed band of the closure device, the proximate ends pivotally coupled such that the distal ends are radially spaceable from one another between a retracted configuration and an expanded configuration to move the closure device from the second configuration to the first configuration.
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Abstract
A device for closing holes in tissue is delivered via a catheter to the inside of a body lumen such as a heart. An elastic barbed clip is expanded, pulled into the tissue and released, pulling the tissue with it. The operation is fully reversible.
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Citations
38 Claims
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1. A medical apparatus to close a hole in cardiac tissue, the medical apparatus comprising:
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at least one tool; and a closure device comprising; a closed band, a central passage open at opposed ends thereof to selectively removably receive a portion of the at least one tool therethrough, and a plurality of barbs disposed radially about the central passage for attachment to the cardiac tissue, wherein the closure device is resiliently biased from a first configuration in which a radial size of the central passage has a first dimension toward a second configuration in which the radial size of the central passage has a second dimension, the second dimension smaller than the first dimension, and a portion of the closure device forming at least part of a periphery of the central passage, the at least part of the periphery of the central passage located radially inward from the plurality of barbs at least in the second configuration, and wherein the at least one tool includes a plurality of arms each with respective distal ends and proximate ends, the distal ends engaging the closed band of the closure device, the proximate ends pivotally coupled such that the distal ends are radially spaceable from one another between a retracted configuration and an expanded configuration to move the closure device from the second configuration to the first configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A medical apparatus to close a hole in cardiac tissue, the medical apparatus comprising:
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at least one tool; and a closure device comprising; a central passage open at opposed ends thereof to selectively removably receive a portion of the at least one tool therethrough, and a plurality of barbs disposed radially about the central passage for attachment to the cardiac tissue, wherein the closure device is resiliently biased from a first configuration in which a radial size of the central passage has a first dimension toward a second configuration in which the radial size of the central passage has a second dimension, the second dimension smaller than the first dimension, and a portion of the closure device forming at least part of a periphery of the central passage, the at least part of the periphery of the central passage located radially inward from the plurality of barbs at least in the second configuration, wherein the closure device comprises a plurality of lobes, a respective barb of the plurality of barbs extending from each lobe, and wherein the at least one tool includes a plurality of arms each with respective distal ends and proximate ends, each of the distal ends respectively engaging one of the plurality of lobes, the proximate ends pivotally coupled such that the distal ends are radially spaceable from one another between a retracted configuration and an expanded configuration to move the closure device from the second configuration to the first configuration.
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33. A medical apparatus to close holes in a cardiac tissue, comprising:
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a closure device comprising a lobed band with a central passage open at opposed ends thereof, and a plurality of barbs disposed radially about the central passage and extending generally longitudinally from the lobed band for selective attachment to the cardiac tissue, the closure device resiliently biased from a first configuration in which a radial size of the central passage has a first dimension toward a second configuration in which the radial size of the central passage has a second dimension, the second dimension smaller than the first dimension; and a tool having a plurality of arms each with respective distal ends and proximate ends, at least a portion of the arms are selectively removably receivable together through the central passage of the lobed band at least during implantation of the closure device, the proximate ends of the arms pivotally coupled such that the distal ends are radially spaceable from one another between a retracted configuration and an expanded configuration to move the closure device from the second configuration to the first configuration. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification