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    Phosthetic ligament
    1.
    发明授权
    Phosthetic ligament 失效
    假韧带

    公开(公告)号：US4790850A

    公开(公告)日：1988-12-13

    申请号：US64634

    申请日：1987-06-22

    申请人： Richard L. Dunn ,  Danny H. Lewis ,  Thomas W. Sander ,  James A. Davidson ,  Neil B. Beals ,  Yancy L. Gill

    发明人： Richard L. Dunn ,  Danny H. Lewis ,  Thomas W. Sander ,  James A. Davidson ,  Neil B. Beals ,  Yancy L. Gill

    IPC分类号： A61F2/08

    CPC分类号： A61F2/08 ,  D04C1/12 ,  D10B2509/00

    摘要： A prosthetic ligament assembly includes a nonaugmented prosthetic ligament for permanently replacing a natural ligament spanning first and second body members, such as the femur and tibia, and a bone screw adapted for tensioning the prosthetic ligament during implantation. The prosthetic ligament includes a load bearing member intertwined into a plain braid from a plurality of biocompatible, high strength, ultra high molecular weight polyethylene yarns. Each yarn includes at least fifty fibers and has a tensile strength greater than or equal to about 100,000 psi. The load bearing member has a gage section and a loop at each end thereof for anchoring the load bearing member to the body members. The load bearing member is preloaded to remove slack therefrom. The load bearing member may be used alone or may be formed into a hollow braid having a core disposed within the hollow portion of the braid to permit radiographic visualization of the prosthetic ligament. A sheath may be friction fit or molded onto the exterior of the gage section. The assembly also includes one or two bone screws for complimentary engagement with the loops of the load bearing member. The bone screws have a tapered section extending beneath the head of the screw to the shank for tensioning the prosthetic ligament during implantation.

    摘要翻译： 假肢韧带组件包括用于永久地替换跨越第一和第二身体构件（例如股骨和胫骨）的天然韧带的修饰韧带，以及适于在植入期间张紧假体韧带的骨螺钉。 假体韧带包括从多个生物相容的高强度超高分子量聚乙烯纱线缠绕成平纹编织物的承载构件。 每个纱线包括至少五十根纤维，并且具有大于或等于约100,000psi的拉伸强度。 承载构件在其每个端部具有一定量部分和一个环，用于将承载构件锚固到主体构件上。 承载构件被预加载以从其中移除松弛。 承载构件可以单独使用或者可以形成为具有设置在编织物的中空部分内的芯的中空编织物，以允许假体韧带的放射线显影。 护套可以摩擦配合或模制到计量部分的外部。 组件还包括一个或两个骨螺钉，用于与承载构件的环互补接合。 骨螺钉具有在螺钉头部下方延伸到柄部的锥形部分，用于在植入期间张紧假体韧带。

    Prosthetic ligament
    2.
    发明授权
    Prosthetic ligament 失效
    假肢韧带

    公开(公告)号：US4932972A

    公开(公告)日：1990-06-12

    申请号：US186330

    申请日：1988-04-26

    申请人： Richard L. Dunn ,  Danny H. Lewis ,  Thomas W. Sander ,  James A. Davidson ,  Neil B. Beals ,  Yancy L. Gill

    发明人： Richard L. Dunn ,  Danny H. Lewis ,  Thomas W. Sander ,  James A. Davidson ,  Neil B. Beals ,  Yancy L. Gill

    IPC分类号： A61F2/08

    CPC分类号： A61F2/08 ,  D04C1/12 ,  D10B2509/00

    摘要： A prosthetic ligament assembly includes a nonaugmented prosthetic ligament for permanently replacing a natural ligament spanning first and second body members, such as the femur and tibia, and a bone screw adapted for tensioning the prosthetic ligament during implantation. The prosthetic ligament includes a load bearing member intertwined into a plain braid from a plurality of biocompatible, high strength, ultra high molecular weight polyethylene yarns. Each yarn includes at least fifty fibers and has a tensile strength greater than or equal to about 100,000 psi. The load bearing member has a gage section and a loop at each end thereof for anchoring the load bearing member to the body members. The load bearing member is preloaded to remove slack therefrom. The load bearing member may be used alone or may be formed into a hollow braid having a core disposed within the hollow portion of the braid to permit radiographic visualization of the prosthetic ligament. A sheath may be friction fit or molded onto the exterior of the gage section. The assembly also includes one or two bone screws for complimentary engagement with the loops of the load bearing member. The bone screws have a tapered section extending beneath the head of the screw to the shank for tensioning the prosthetic ligament during implantation.

    摘要翻译： 假肢韧带组件包括用于永久地替换跨越第一和第二身体构件（例如股骨和胫骨）的天然韧带的修饰韧带，以及适于在植入期间张紧假体韧带的骨螺钉。 假体韧带包括从多个生物相容的高强度超高分子量聚乙烯纱线缠绕成平纹编织物的承载构件。 每个纱线包括至少五十根纤维，并且具有大于或等于约100,000psi的拉伸强度。 承载构件在其每个端部具有一定量部分和一个环，用于将承载构件锚固到主体构件上。 承载构件被预加载以从其中移除松弛。 承载构件可以单独使用或者可以形成为具有设置在编织物的中空部分内的芯的中空编织物，以允许假体韧带的放射线显影。 护套可以摩擦配合或模制到计量部分的外部。 组件还包括一个或两个骨螺钉，用于与承载构件的环互补接合。 骨螺钉具有在螺钉头部下方延伸到柄部的锥形部分，用于在植入期间张紧假体韧带。

    Compressible heart valve annulus sizing templates
    6.
    发明授权
    Compressible heart valve annulus sizing templates 有权

    公开(公告)号：US11213393B2

    公开(公告)日：2022-01-04

    申请号：US13429123

    申请日：2012-03-23

    申请人： Matthew T. Winston ,  Da-Yu Chang ,  Louis A. Campbell ,  James A. Davidson

    发明人： Matthew T. Winston ,  Da-Yu Chang ,  Louis A. Campbell ,  James A. Davidson

    IPC分类号： A61F2/24

    摘要： Compressible heart valve annulus sizing templates suitable for minimally-invasive or otherwise reduced accessibility surgeries. The sizing templates may be folded, rolled, or otherwise compressed into a reduced configuration for passage through an access tube or other such access channel. Once expelled from the access tube the sizing templates expand to their original shape for use in sizing the annulus. The templates may be formed of an elastomeric polymer material such as silicone, a highly elastic metal such as NITINOL, or both. Grasping tabs or connectors for handles permit manipulation from outside the body. A NITINOL wireform may be compressed for passage through an access tube and expelled from the distal end thereof into a cloth cover to assume a sizer shape.

    Method of Peening Metal Heart Valve Stents
    7.
    发明申请
    Method of Peening Metal Heart Valve Stents 审中-公开
    硬化心脏瓣膜支架的方法

    公开(公告)号：US20110146361A1

    公开(公告)日：2011-06-23

    申请号：US12950799

    申请日：2010-11-19

    申请人： James A. Davidson ,  Louis A. Campbell

    发明人： James A. Davidson ,  Louis A. Campbell

    IPC分类号： C21D7/06

    CPC分类号： C21D7/06 ,  A61F2/2418 ,  A61F2220/0075 ,  A61F2230/0054 ,  C21D10/005 ,  C21D2221/00

    摘要： Medical devices, such as percutaneous prosthetic heart valves can include a stent or frame structure component. The stent can be shot peened, laser peened, and/or ultrasonically peened, thereby reducing surface abnormalities, improving surface appearance, and/or increasing fatigue life of the device.

    摘要翻译： 医疗装置，例如经皮假体心脏瓣膜，可以包括支架或框架结构部件。 可以对支架进行喷丸硬化，激光喷丸处理和/或超声波喷丸处理，从而减少装置的表面异常，改善表面外观和/或增加疲劳寿命。

    Isoelastic suture material and device
    9.
    发明授权
    Isoelastic suture material and device 有权
    等弹性缝合材料及装置

    公开(公告)号：US06197043B1

    公开(公告)日：2001-03-06

    申请号：US09376227

    申请日：1999-08-18

    申请人： James A. Davidson

    发明人： James A. Davidson

    IPC分类号： A61B1704

    CPC分类号： A61L17/10 ,  A61B17/06166 ,  A61B2017/1107 ,  A61L17/04

    摘要： A flexible, isoelastic polymer surgical suture and suture construct formed from a material selected from the group consisting of silicone, polyurethane, polyurethane copolymers, rubber, and other hemocompatible and biocompatible thermoplastic elastomers, wherein the suture and suture construct is formed from a single or multiple filament, the suture and suture construct having an elastic modulus between about 50 to 2000 psi, a tensile strength between about 500 to 50,000 psi, and a tensile elongation between about 100 to 1000 percent. In an alternate suture construct, the construct includes a base material and an inner core formed from a higher-strength fiber or group of fibers having a helical orientation. The low-modulus base material is selected from the group consisting of silicone, polyurethane, polyurethane copolymers, rubber, and other hemocompatible and biocompatible thermoplastic elastomers. In an alternate suture construct, the construct includes a base material and an inner core formed from a higher-strength fiber or group of fibers having a helical orientation. The inner core has an elastic modulus above about 2,000 psi, a tensile strength above about 10,000 psi, and a tensile elongation between about 1 to 80 percent.

    摘要翻译： 由选自硅氧烷，聚氨酯，聚氨酯共聚物，橡胶和其它血液相容性和生物相容性热塑性弹性体的材料形成的柔性，等弹性聚合物外科缝合线和缝合线构造物，其中缝合线和缝合线构造体由单个或多个 细丝，缝合线和缝合线构造具有约50至2000psi之间的弹性模量，约500至50,000psi之间的拉伸强度和约100至1000％之间的拉伸伸长率。 在替代的缝合线构造中，构造物包括由具有螺旋取向的较高强度纤维或纤维组形成的基材和内芯。 低模量基材选自硅氧烷，聚氨酯，聚氨酯共聚物，橡胶和其它血液相容性和生物相容性热塑性弹性体。 在替代的缝合线构造中，构造物包括由具有螺旋取向的较高强度纤维或纤维组形成的基材和内芯。 内芯具有高于约2,000psi的弹性模量，高于约10,000psi的拉伸强度和约1至80％之间的拉伸伸长率。