公开(公告)号：US20040267313A1

公开(公告)日：2004-12-30

申请号：US10874301

申请日：2004-06-24

Applicant: LINVATEC CORPORATION

Inventor： Drew Amery ,  Amber Powell

IPC: A61L017/00 ,  A61B017/04

CPC classification number: D07B1/025 ,  A61B17/06166 ,  A61B2017/00526 ,  A61L17/10 ,  A61L17/145 ,  D01F6/04 ,  D07B2201/1096 ,  D07B2205/2014 ,  D07B2801/10

Abstract: In the present invention, a gel-spun UHMWPE is subjected to secondary processing to reduce the concentration of the spin solvent(s) to acceptable levels before or after the fiber is woven with other fibers to form a suture. In the case of the spin solvent Decalin, it is well known that concentrations, in the fiber, of greater than 100 parts per million (ppm) render UHMWPE materials non-compatible with human tissues. Thus, UHMWPE materials that are to remain within the human body must have a Decalin concentration below 100 ppm to render them biocompatible. If desired, the suture may be braided about a core. The number of filaments in a single suture can vary between 4 and 24. Additionally, where a core structure is employed, up to 6 separate core filaments may be employed. Other materials such as PTFE, FEP, PFA, PVFD, PP, polyester, nylon, or aramid may be employed for the core and/or cover so long as spin solvent level has been reduced to below 100 ppm before or after twisting or braiding.

Abstract translation: 在本发明中，将凝胶纺丝的UHMWPE进行二次加工，以将纤维与其它纤维织造之前或之后的旋转溶剂的浓度降低至可接受的水平以形成缝合线。 在旋转溶剂十氢化萘的情况下，众所周知，纤维中的浓度大于100ppm（ppm）使UHMWPE材料与人体组织不相容。 因此，保留在人体内的UHMWPE材料必须具有低于100ppm的十氢化萘浓度以使其具有生物相容性。 如果需要，可以围绕芯部编织缝合线。 单个缝合线中的细丝数量可以在4和24之间变化。另外，当使用芯结构时，可以使用多达6个单独的芯丝。 只要旋转溶剂水平在扭曲或编织之前或之后降至100ppm以下，其它材料如PTFE，FEP，PFA，PVFD，PP，聚酯，尼龙或芳纶可用于芯和/或盖。

公开(公告)号：US20040267316A1

公开(公告)日：2004-12-30

申请号：US10874302

申请日：2004-06-24

Applicant: LINVATEC CORPORATION

Inventor： Amber Powell ,  Drew Amery

IPC: A61B017/06 ,  A61L017/00 ,  A61B017/04

CPC classification number: A61L17/105 ,  A61B17/06166 ,  D07B1/025 ,  D07B2201/1096 ,  D07B2201/2087 ,  D07B2205/2014 ,  D07B2205/2042 ,  D07B2205/3017 ,  D07B2801/10 ,  D07B2801/18 ,  D07B2801/22

Abstract: A high strength suture is made from a LCP/polyester composite of braided filaments having a high coefficient of friction. Knots tied in a suture made from such braided filaments have a tendency to stay in place better than the prior art UHMWPE/polyester composite knots. The inventive suture may include a multifilament cover of fibers of LCP and/or LCP composite fibers. Where a core is employed, the core may be made up of twisted fibers of LCP and liquid crystal composite fibers. If desired, the composite fibers can be a combination of LCP and other polymers such as polyester, nylon, fluoropolymers such as FEP or PTFE or olefins such as polypropylene, polyethylene or UHMWPE. A low friction coating, such as silicone, may be applied over the outside surfaces of the suture.

Abstract translation: 高强度缝合线由具有高摩擦系数的编织长丝的LCP /聚酯复合材料制成。 绑在由这种编织丝制成的缝合线上的针头比现有技术的UHMWPE /聚酯复合结节更倾向于保持在适当位置。 本发明的缝合线可以包括LCP和/或LCP复合纤维的纤维复丝盖。 在使用芯的情况下，芯可以由LCP和液晶复合纤维的扭曲纤维构成。 如果需要，复合纤维可以是LCP和其它聚合物如聚酯，尼龙，含氟聚合物如FEP或PTFE或烯烃如聚丙烯，聚乙烯或UHMWPE的组合。 可以在缝合线的外表面上施加低摩擦涂层，例如硅树脂。