Methods and Devices For Preparing and Implanting Tissue Scaffolds
First Claim
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1. A tissue repair kit, comprising:
- a scribing device having a handle, an elongate shaft extending from the handle, and a scribing element formed on a distal end of the elongate shaft, the scribing element extending along an axis that is offset from a longitudinal axis of the elongate shaft, and the scribing element having a distal-most scribing edge that is curved such that rotation of the scribing device about the longitudinal axis of the elongate shaft is effective to cause the scribing edge to form a circular mark in tissue; and
a biocompatible tissue repair scaffold configured to be implanted in a defect site in tissue.
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Abstract
Methods and devices are provided for preparing and implanting tissue scaffolds. Various embodiments of scribing tools are provided that are configured to mark one or more predetermined shapes around a defect site in tissue. The shape or shapes marked in tissue can be used to cut a tissue scaffold having a shape that matches the shape or shapes marked in tissue. In one embodiment, the scribing tool used to mark a shape in tissue can also be used to cut the tissue scaffold.
2 Citations
18 Claims
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1. A tissue repair kit, comprising:
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a scribing device having a handle, an elongate shaft extending from the handle, and a scribing element formed on a distal end of the elongate shaft, the scribing element extending along an axis that is offset from a longitudinal axis of the elongate shaft, and the scribing element having a distal-most scribing edge that is curved such that rotation of the scribing device about the longitudinal axis of the elongate shaft is effective to cause the scribing edge to form a circular mark in tissue; and a biocompatible tissue repair scaffold configured to be implanted in a defect site in tissue.
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2. A surgical method, comprising:
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advancing a surgical device into a body of a patient to position a distal scribing tip of the device at a defect site in tissue; rotating the surgical device about a central longitudinal axis of the surgical device such that the distal scribing tip rotates to form a circular mark in tissue around the defect site; removing the tissue within the circular mark to form a circular cavity in the tissue; cutting a biocompatible tissue repair scaffold to have a circular shape that corresponds to the circular mark formed in the tissue; and implanting the biocompatible tissue repair scaffold in the circular cavity in the tissue. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A surgical method, comprising:
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rotating a scribing device about a longitudinal axis of the scribing device to form a first substantially circular mark in tissue at a defect site; rotating a scribing device about a longitudinal axis of the scribing device to form a second substantially circular mark in the tissue at the defect site, the second substantially circular mark partially overlapping the first substantially circular mark; and removing tissue within the first and second substantially circular marks to remove a defect in the tissue. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A tissue repair kit, comprising:
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a scribing tool configured to form in tissue a circular mark having a predetermined diameter; and a cutting template device having first and second portions slidably coupled to one another, the first and second portions having a first position in which the first and second portions define a circular cut-out formed therebetween and having a diameter that corresponds to the predetermined diameter, and an expanded position in which the first and second portions define an oblong cut-out formed therebetween and having a major axis length that is adjustable. - View Dependent Claims (16, 17, 18)
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Specification