Abstract:
Single tubular woven or bifurcated prostheses are disclosed having varying diameters and tapered transitions. The prostheses comprise a seam along the tapered edges, thereby providing a substantially fluid-tight transition between sections or extents of the prostheses. The seam may be located at an edge where fabric of the prosthesis tapers from one diameter to a different diameter and/or at a point where the prosthesis splits such as a bifurcation. The seamed crotch may be used for tapered and non-tapered bifurcated grafts. The seam may be woven directly on a weaving loom or joined together after weaving is completed.
Abstract:
An integrally woven or knitted textile, such as a tubular graft or sheet, having a base textile layer, in the case of a graft, it has at least one longitudinal tubular graft portion, and at least one pouch or flap integrally woven from at least a portion of the same set of yarns. Methods of making the same are also disclosed.
Abstract:
A system, method and fabric having a dimensionally stabilized pore. The system has a mesh fabric having a pore, such pore having a first pore perimeter. The system has a support having a support outer perimeter. The support is received into the pore so that the pore perimeter is in contact with the outer support perimeter. When the fabric is thermoset, the pore permanently assumes the shape of the outer support perimeter.
Abstract:
A fabric can comprise yarns comprising less than about 30 denier total and less than about 10 denier per filament; a density of greater than about 177 yarns per m2; and a thickness of less than about 3.2 mil. The fabric can further comprises a weight of less than about 60 g/m2. The fabric can have performance characteristics equivalent to or greater than those in conventional implantable fabrics. A method of making such a fabric can include twisting together filaments into a multifilament yarn; passing adjacent yarns into a loom in parallel so as to allow the yarns to be woven together more closely; maintaining a consistent tension on the yarns during placement of the yarns on a loom beam and during weaving; and or subjecting the fabric to increased heat and pressure so as to compress the yarns more tightly.
Abstract translation:织物可以包括总共小于约30旦尼尔和小于约10旦尼尔/丝的纱线; 大于约177纱/ m 2的密度; 厚度小于约3.2密耳。 织物还可以包含小于约60g / m 2的重量。 织物可以具有与常规可植入织物相当或更大的性能特征。 制造这种织物的方法可以包括将细丝捻合成多丝纱线; 将相邻的纱线平行地通过织机,以使纱线更紧密地编织在一起; 在将纱线放置在织机梁上和织造期间,在纱线上保持一致的张力; 并且或者使织物增加热量和压力,以便更紧密地压缩纱线。
Abstract:
An elongation resistant fabric, devices, and methods can include an elongation resistant yarn laid in a knit structure of the fabric between knit loops in selected adjacent wales and partially about the loop in one adjacent wale in predetermined courses. In this manner, the fabric can be adapted to resist elongation in a walewise direction along the length of the fabric. The elongation resistant fabric can be a mesh fabric. In a mesh fabric, the size and a shape of pores in the fabric can be maintained when the fabric is pulled in the walewise direction. The elongation resistant yarn can have a diameter larger than the individual diameters of other yarns in the fabric. The elongation resistant yarn can be, for example, a monofilament yarn, such as a polypropylene or polyester monofilament yarn.
Abstract:
An elongation resistant fabric, devices, and methods can include an elongation resistant yarn laid in a knit structure of the fabric between knit loops in selected adjacent wales and partially about the loop in one adjacent wale in predetermined courses. In this manner, the fabric can be adapted to resist elongation in a walewise direction along the length of the fabric. The elongation resistant fabric can be a mesh fabric. In a mesh fabric, the size and a shape of pores in the fabric can be maintained when the fabric is pulled in the walewise direction. The elongation resistant yarn can have a diameter larger than the individual diameters of other yarns in the fabric. The elongation resistant yarn can be, for example, a monofilament yarn, such as a polypropylene or polyester monofilament yarn.
Abstract:
A compressible resilient fabric can include a ground layer of knitted yarn, and a loop layer comprising a plurality of loops of yarn, each loop having a point knit into the ground layer. The fabric can be compressible from an non-compressed configuration, in which each loop has an apex extending substantially perpendicularly outward from the ground layer, into a compressed configuration, in which each loop is collapsed onto the ground layer. The fabric can further be resilient so as to substantially resume the non-compressed configuration when compression is relieved. The loop layer yarn can include a multifilament yarn having a high denier per filament ratio. The ground layer yarn can include a yarn shrinkable substantially more than the loop layer yarn. The loops can be densely knit so as to support the extension of the loops outward from the ground layer.
Abstract:
A fabric medical device and method of making the device can include warp yarns and fill yarns woven together to form a first tubular extent having a first diameter, a second tubular extent having a second diameter, and a transition tubular extent having a graduated diameter between the first and second tubular extents. A tapered edge can be formed along the transition tubular extent by weaving such that a graduated number of warp yarns are disengaged along the transition tubular extent. A seam can be woven along the tapered edge that is configured to provide a substantially fluid-tight transition between the first and second tubular extents. The device can further include the warp yarns in at least the transition tubular extent having a tenacity higher than the tenacity of the fill yarns. The device can be a bone filler delivery device adapted to deliver bone filler in an internal body region.
Abstract:
A fabric medical device and method of making the device can include warp yarns and fill yarns woven together to form a first tubular extent having a first diameter, a second tubular extent having a second diameter, and a transition tubular extent having a graduated diameter between the first and second tubular extents. A tapered edge can be formed along the transition tubular extent by weaving such that a graduated number of warp yarns are disengaged along the transition tubular extent. A seam can be woven along the tapered edge that is configured to provide a substantially fluid-tight transition between the first and second tubular extents. The device can further include the warp yarns in at least the transition tubular extent having a tenacity higher than the tenacity of the fill yarns. The device can be a bone filler delivery device adapted to deliver bone filler in an internal body region.
Abstract:
An integrally woven or knitted textile, such as a tubular graft or sheet, having a base textile layer, in the case of a graft, it has at least one longitudinal tubular graft portion, and at least one pouch or flap integrally woven from at least a portion of the same set of yarns. Methods of making the same are also disclosed.