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公开(公告)号：US4192020A
公开(公告)日：1980-03-11
申请号：US790442
申请日：1977-04-25
CPC分类号： D03D15/00 , A61F2/06 , A61F2/2412 , B21F45/008 , D03D3/02 , D03D7/00 , D10B2321/022 , D10B2331/04 , D10B2401/061 , D10B2509/00 , Y10S623/90
摘要： A prosthesis for an inadequate or diseased heart valve, the prosthesis being formed of a porous fabric comprising multifilament synthetic yarns supported on a plural-lobed frame. The frame has generally parallel legs each comprising a pair of rod portions. The fabric is inserted between the rod portions of the legs to form flexible leaflets. Each leaflet consists essentially of a textile of filaments having a substantial number of open interstitial spaces in the range of 20 to 40 microns evenly distributed throughout the fabric. The resulting composite structures are free of thrombogenic complications.
摘要翻译： 用于不充分或患病的心脏瓣膜的假体，所述假体由多孔织物形成，所述多孔织物包括支撑在多叶状框架上的复丝合成纱线。 框架具有大致平行的腿，每个腿包括一对杆部分。 将织物插入腿的杆部之间以形成柔性传单。 每个小叶基本上由长丝的织物组成，其具有在整个织物中均匀分布的在20至40微米范围内的相当数量的开放间隙。 所得到的复合结构没有血栓形成并发症。
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公开(公告)号：US4297749A
公开(公告)日：1981-11-03
申请号：US125121
申请日：1980-02-27
CPC分类号： B21F45/008 , A61F2/2412 , Y10S623/90
摘要： A frame system for heart valve prosthesis. A first frame has at least three generally parallel legs each comprising a pair of rod portions connected at one end and diverging at the other end as lobes respectively connecting with rod portions of others of said legs. The lobes form an aperture therebetween and the legs are adapted to receive the margin of a valve leaflet between the rod portions thereof. Thus, the leaflet may be secured to two adjacent legs and the interconnecting lobe so as to have a free edge extending between said adjacent legs. A second frame is adapted to nest with the first frame and comprises a rod formed to be substantially congruent with the interconnecting lobes, whereby the leaflets may be secured to and between the frames.
摘要翻译： 心脏瓣膜假体的框架系统。 第一框架具有至少三个大致平行的腿，每个腿包括一对杆部分，该杆部分在一端连接并且在另一端处以分别与所述腿部中的其他杆的杆部分连接的凸起分开。 叶片在它们之间形成孔，并且腿部适于在其杆部之间容纳瓣膜小叶的边缘。 因此，小叶可以固定到两个相邻的腿和互连瓣，以便具有在所述相邻腿之间延伸的自由边缘。 第二框架适于与第一框架嵌套并且包括形成为与互连凸角基本一致的杆，由此传单可以固定到框架之间并且在框架之间。
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3.发明授权
公开(公告)号：US4340091A
公开(公告)日：1982-07-20
申请号：US125120
申请日：1980-02-27
申请人： John Skelton , Richard E. Clark , Robert B. Davis
发明人： John Skelton , Richard E. Clark , Robert B. Davis
IPC分类号： A61L27/00 , A61F2/06 , A61F2/24 , A61L27/14 , A61L27/18 , D03D3/02 , D03D7/00 , D03D15/00 , A61F1/22 , D04C1/00
CPC分类号： A61F2/2418 , A61F2/06 , A61F2/2412 , A61L27/14 , A61L27/18 , B21F45/008 , D03D15/00 , D03D15/0061 , D03D15/08 , D03D3/02 , D03D7/00 , A61F2220/005 , D10B2331/06 , D10B2509/00
摘要： Sheet materials for cardiovascular and other prosthetic implants are fabricated of synthetic elastomers. These materials are characterized by molecular configurations that produce a nonlinear tensile modulus characteristic similar in shape to that of natural tissue. Selected elastomers, when formed as sheet material of appropriate geometrical configuration, promote the formation of natural tissue thereon which is appropriate for the mechanical characteristics desired.
摘要翻译： 用于心血管和其他假体植入物的片材由合成弹性体制成。 这些材料的特征在于产生与天然组织相似形状的非线性拉伸模量特征的分子构型。 所选择的弹性体当形成为具有适当几何构型的片状材料时，促进其上适合于所需机械特性的天然组织的形成。
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4.发明授权Fabrics for heart valve and vascular prostheses and methods of fabricating same 失效用于心脏瓣膜和血管假体的织物及其制造方法
公开(公告)号：US4191218A
公开(公告)日：1980-03-04
申请号：US901085
申请日：1978-04-28
申请人： Richard E. Clark , John Skelton , Robert B. Davis
发明人： Richard E. Clark , John Skelton , Robert B. Davis
CPC分类号： D03D15/0088 , A61F2/06 , A61F2/2412 , D03D15/00 , D03D3/02 , D03D7/00 , D10B2331/04 , D10B2401/061 , D10B2509/00
摘要： Prostheses for inadequate or diseased heart valves and blood vessels, formed of fabrics comprising multifilament synthetic yarns. For a heart valve the fabric is supported on a three-lobed frame. During manufacture, the fabric is subjected to a plural step compressive shrinking and crimping process to impart nonisotropic elastic compliance approximating the natural mechanical properties. The resulting composite structures are free of thrombogenic complications.
摘要翻译： 用于由包括复丝合成纱线的织物形成的不充分或患病的心脏瓣膜和血管的假体。 对于心脏瓣膜，织物支撑在三叶框架上。 在制造过程中，织物经受多步压缩收缩和卷曲处理，以赋予接近自然机械性能的非均质弹性柔量。 所得到的复合结构没有血栓形成并发症。
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公开(公告)号：US5004474A
公开(公告)日：1991-04-02
申请号：US442093
申请日：1989-11-28
IPC分类号： A61F2/08
CPC分类号： A61F2/0811 , A61F2/08 , A61F2002/0852 , A61F2002/0858 , A61F2002/087 , A61F2002/0882 , A61F2250/0028
摘要： An artificial ligament device is provided for joining the ends of two bones wherein at least one of the bones has a tunnel extending therethrough. The device comprises a multilayered or tubular woven ligament having an intra-articular region, at least one bend region, and at least one end region, each region being woven so as to possess qualities of flexibility and strength suitable to the particular types of stresses it receives during use. The end region and a portion of the bend region are encased within a polymer bone block, usually by thermomolding, and the bone block is inserted into the bone tunnel to attach the ligament. The bone block is molded to provide a fixed bend radius for the ligament at the point of exit therefrom so as to control the amount of bending stress on the ligament during flexure and extension of the joint.
摘要翻译： 提供人造韧带装置用于连接两个骨头的端部，其中至少一个骨头具有穿过其中延伸的隧道。 该装置包括具有关节内区域，至少一个弯曲区域和至少一个端部区域的多层或管状编织韧带，每个区域被编织以具有适合于特定类型的应力的柔性和强度的质量 在使用过程中收到。 通常通过热成型将端部区域和弯曲区域的一部分包裹在聚合物骨块内，并且将骨块插入骨隧道以附着韧带。 骨块被模制以在其出口点处提供用于韧带的固定弯曲半径，以便在关节的弯曲和伸展期间控制韧带上的弯曲应力的量。
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6.发明授权Thermal insulator comprised of split and opened fibers and method for making same 失效由分裂和开放的纤维构成的绝热体及其制造方法
公开(公告)号：US4681789A
公开(公告)日：1987-07-21
申请号：US780389
申请日：1985-09-26
申请人： James G. Donovan , John Skelton
发明人： James G. Donovan , John Skelton
CPC分类号： D04H1/4382 , D04H1/4291 , D04H1/4342 , D04H1/435 , Y10S428/92 , Y10T428/23964 , Y10T428/23979 , Y10T428/23993 , Y10T428/249921 , Y10T442/696
摘要： A thermal insulator is disclosed which comprises fibrillated staple fibers exemplified by fibrillated fibers of poly (p-phenylene terephthalamide). The fibers are fibrillated on a carding machine equipped with metallic clothing.
摘要翻译： 公开了一种绝热体，其包括由聚（对苯二甲酰对苯二胺）的原纤化纤维示例的原纤化短纤维。 纤维在装有金属衣服的梳理机上原纤化。
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公开(公告)号：US5501133A
公开(公告)日：1996-03-26
申请号：US248577
申请日：1994-05-24
申请人： David Brookstein , Donald Rose , Robin Dent , John Dent , John Skelton
发明人： David Brookstein , Donald Rose , Robin Dent , John Dent , John Skelton
CPC分类号： D04C3/24 , D04C1/06 , D04C3/08 , D04C3/36 , D10B2505/02
摘要： The invention concerns a braid structure comprising a plurality of braided layers of stranded material in which the layers are laid down in a single pass of a braiding machine, with at least one strand of each layer extending into a contiguous layer to form an interlock between the layers. The invention also concerns a machine and a method of making the structure by supplying groups of strands, (R, B, G, O, W), to a braid forming station, whereby each group of strands forms a braid layer. A strand (R) from one of the groups passes into or through the strands (B) of a group of an adjacent layer to form an interlock therebetween.
摘要翻译： 本发明涉及一种编织结构，其包括多个绞合材料的编织层，其中层被编织在编织机的单次通过中，其中每层的至少一根股线延伸到连续的层中以形成互锁 层。 本发明还涉及通过将一组线束（R，B，G，O，W）供给到编织物形成站来制造该结构的机器和方法，由此每组线形成编织层。 来自一个组的线束（R）进入或穿过一组相邻层的线束（B），以在它们之间形成互锁。
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公开(公告)号：US5290502A
公开(公告)日：1994-03-01
申请号：US951170
申请日：1992-09-25
申请人： Andrew B. Jeffery , George Bakis , John Skelton
发明人： Andrew B. Jeffery , George Bakis , John Skelton
CPC分类号： B01D39/163 , B29C61/006 , B29C61/025 , B29C61/0658 , B29K2065/00 , B29K2067/00 , B29K2105/06 , B29K2105/25 , B29L2031/14 , B29L2031/726 , Y10S264/19 , Y10S264/48 , Y10S264/71
摘要： A rigidized fiber filter element is produced from a precursor fiber web. The precursor fiber web contains heat-shrinkable fibers or binder fibers or both. The web is exposed to temperatures sufficiently elevated to cause shrinkage of the fibers or melting of the binder. After cooling the web, the filter elements produced are self-supporting, and may have densities up to 500 kg/m.sup.3 to improve filtration while retaining good functional characteristics for operating pressure drop and air permeability. Rigidized fiber filter elements can be constructed of one material, and thus may be suitable for recycling.
摘要翻译： 刚性纤维过滤元件由前体纤维网制成。 前体纤维网包含热收缩纤维或粘合剂纤维或两者。 将幅材暴露于足够升高的温度以引起纤维收缩或粘合剂熔化。 冷却网后，所生产的过滤元件是自支撑的，并且可以具有高达500kg / m 3的密度以改善过滤，同时保持操作压降和透气性的良好功能特征。 刚性纤维过滤元件可由一种材料构成，因此可适用于回收。
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公开(公告)号：US5043207A
公开(公告)日：1991-08-27
申请号：US573293
申请日：1990-09-21
申请人： James G. Donovan , John Skelton
发明人： James G. Donovan , John Skelton
CPC分类号： D04H3/00 , A47G9/086 , D04H3/009 , D04H3/011 , D04H3/16 , Y10S428/903 , Y10S428/92 , Y10T428/249921 , Y10T442/25 , Y10T442/615 , Y10T442/627
摘要： Insulating material comprising continuous filaments of a synthetic material characterized in that the filaments have a mean diameter of from 4 to 20 microns and in that the filaments have been separated by a stretching and subsequent relaxation of a crimped tow of said filaments.
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公开(公告)号：US4497866A
公开(公告)日：1985-02-05
申请号：US525646
申请日：1983-08-23
CPC分类号： E21B17/00 , F04B53/144 , B29L2031/06 , Y10T403/68 , Y10T428/2915 , Y10T428/2918 , Y10T428/2936 , Y10T428/294 , Y10T428/2964 , Y10T74/20456
摘要： A rod assembly comprising a core component and a sheath component and having an elongate cross-section, the sheath component consisting of an anisotropic assembly of non-metallic filamentary elements embedded in a polymeric matrix whereby the bending stiffness for deformations about an axis parallel to the major axis of the rod assembly is less than the bending stiffness of the same core and sheath components in a radially symmetrical configuration, and in which the core and sheath components have load-elongation characteristics so that the ratio of the strain to the strain-to-break in the sheath is essentially equal to the ratio of the strain to the strain-to-break in the core throughout the working load range.
摘要翻译： 一种杆组件，其包括芯部件和护套部件并且具有细长的横截面，所述护套部件由嵌入聚合物基体中的非金属丝状元件的各向异性组件组成，由此围绕平行于所述聚合物基体的轴线的变形的弯曲刚度 杆组件的长轴小于径向对称构造中相同芯鞘组件的弯曲刚度，并且其中芯和护套组件具有负载 - 伸长特性，使得应变与应变之比 在护套中的断裂基本上等于在整个工作载荷范围内芯的应变与断裂应变之比。
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