Curved implantable sheath and method of making same
First Claim
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1. A method for making a sheath having a curved contour, comprising:
- providing a sheet of a biological tissue material, the sheet having ends spaced apart from each other by elongated side edges;
mounting the sheet to an elongated member having a curved exterior portion such that at least a substantial portion of the sheet engages the exterior portion;
placing the sheet and elongated member in a fixation solution so that at least part of the sheet is fixed to a configuration defined by the exterior portion of the elongated member engaged thereby; and
separating the sheet from the elongated member to provide an elongated sheath of substantially biocompatible material having a curved contour corresponding to the curved exterior portion of the elongated member.
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Abstract
The present invention provides a method for making a curved implantable sheath. A sheet of flexible material is urged into engagement with a member having a curved surface having a desired configuration. The sheet and member are placed in a fixation solution so that the sheet assumes the configuration of the surface engaged thereby.
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Citations
20 Claims
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1. A method for making a sheath having a curved contour, comprising:
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providing a sheet of a biological tissue material, the sheet having ends spaced apart from each other by elongated side edges;
mounting the sheet to an elongated member having a curved exterior portion such that at least a substantial portion of the sheet engages the exterior portion;
placing the sheet and elongated member in a fixation solution so that at least part of the sheet is fixed to a configuration defined by the exterior portion of the elongated member engaged thereby; and
separating the sheet from the elongated member to provide an elongated sheath of substantially biocompatible material having a curved contour corresponding to the curved exterior portion of the elongated member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19)
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13. A method of making an implantable sheath having a curved contour, comprising:
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providing a sheet of tissue, the sheet having ends spaced apart from each other by elongated side edges;
placing the sheet into engagement with a surface of an elongated member, the surface being curved about a long axis that extends between ends of the elongated member;
urging the side edges of the sheet toward each other so as to cover at least part of the curved surface of the elongated member;
fixing the sheet in a fixation solution so that at least part of the sheet assumes a contour defined by the at least part of the curved surface of the elongated member engaged by the sheet; and
separating the sheet relative to the elongated member to provide an elongated sheath of substantially biocompatible material having a curved contour corresponding to the at least part of the curved surface of the elongated member.
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20. A curved implantable sheath comprising:
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an elongated sheet of biological tissue material having first and second ends spaced apart from each other by opposed side edges;
the elongated sheet extending arcuately between the first and second ends according to a radius of curvature; and
the side edges of the elongated sheet being urged toward each other about a central axis that extends arcuately between the first and ends according to the radius of curvature to define a generally C-shaped cross section of the curved sheath, the curved sheath having undergone a fixation process to maintain such configuration.
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Specification