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Publication Number
US-12208000-B2
Publication Date
2025-01-28
Expiration Date
Abstract
Corner-lock stitch patterns. A mesh pattern may include a first pattern of a first upper thread and a first lower thread comprising one or more first polygonal or circular rings, and a second pattern of a second upper thread and a second lower thread comprising one or more second polygonal or circular rings. At least one of the second polygonal or circular rings may overlap with at least one of the first polygonal or circular rings at an area of overlap. The area of overlap may include a corner-lock stitch pattern in which the second upper thread and second lower thread envelop the first upper thread and the first lower thread.
Core Innovation
The invention relates to corner-lock stitch patterns formed by overlapping separately laid upper thread and lower thread patterns. A first pattern includes a first upper thread and a first lower thread that comprise one or more first polygonal or circular rings, and a second pattern includes a second upper thread and a second lower thread that comprise one or more second polygonal or circular rings, with at least one second polygonal or circular ring overlapping at least one first polygonal or circular ring at an area of overlap.
The area of overlap comprises a corner-lock stitch pattern in which the second upper thread and second lower thread envelop the first upper thread and the first lower thread. This enveloping at the overlap area creates thread interlace points and thread overlays that form meshes and substrates with pores or interstices.
The corner-lock mesh pattern is used to produce medical textiles and mesh structures, including biotextiles and medical textile materials such as hernia repair materials. In embodiments, the mesh includes pores with a length, width, or diameter that are within a range of 0.1 mm to 10 mm, and the thread/material selections include biocompatible and optionally resorbable polymers.
Claims Coverage
The independent claims cover three related structures: a mesh pattern, a mesh implant having a substrate with the mesh formed therein, and a biotextile having a reinforcing mesh sewn therein. Across these independent claims, the shared inventive theme is an overlap-based corner-lock stitch construction where second upper and second lower threads envelop first upper and first lower threads at a corner-lock overlap area formed by polygonal or circular rings.
Corner-lock overlap mesh pattern
A mesh pattern having a first pattern of a first upper thread and a first lower thread comprising one or more first polygonal or circular rings, and a second pattern of a second upper thread and a second lower thread comprising one or more second polygonal or circular rings, wherein at least one second polygonal or circular ring overlaps at least one first polygonal or circular ring at an area of overlap, and wherein the area of overlap comprises a corner-lock stitch pattern in which the second upper thread and second lower thread envelop the first upper thread and the first lower thread.
Corner-lock overlap mesh implant with substrate
A mesh implant comprising a substrate having a mesh formed therein, the mesh comprising a first pattern of a first upper thread and a first lower thread comprising one or more first polygonal or circular rings and a second pattern of a second upper thread and a second lower thread comprising one or more second polygonal or circular rings, wherein at least one second polygonal or circular ring overlaps at least one first polygonal or circular ring at an area of overlap, and wherein the area of overlap comprises a corner-lock stitch pattern in which the second upper thread and second lower thread envelop the first upper thread and the first lower thread.
Corner-lock overlap biotextile reinforcing mesh
A biotextile having a reinforcing mesh sewn therein, the reinforcing mesh comprising a first pattern of a first upper thread and a first lower thread comprising one or more first polygonal or circular rings and a second pattern of a second upper thread and a second lower thread comprising one or more second polygonal or circular rings, wherein at least one second polygonal or circular ring overlaps at least one first polygonal or circular ring at an area of overlap, and wherein the area of overlap comprises a corner-lock stitch pattern in which the second upper thread and second lower thread envelop the first upper thread and the first lower thread.
All independent claims require a corner-lock stitch pattern created by overlapping polygonal or circular ring patterns, where the second upper thread and second lower thread envelop the first upper thread and the first lower thread at the overlap area. The second and third independent claims further apply this corner-lock mesh to a substrate-defined mesh implant and to a biotextile with a reinforcing mesh sewn therein, respectively.
Stated Advantages
Pores and interstices that resist deformation under tension and puncture.
Greater compliance, including more displacement for a given load compared with straight-stitch grids.
Generally higher strength compared with straight-stitch grids.
Documented Applications
Medical textiles and mesh structures, including hernia repair materials, produced using the corner-lock stitch pattern.
Biotextile reinforcement configurations where the corner-lock reinforcing mesh is sewn into a biotextile, including configurations with or without an extracellular matrix biotextile substrate.
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