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    • 2. 发明授权
    • Brazed porous coating and improved method of joining metal with silver
material
    • 钎焊多孔涂层和金属与银材料接合的改进方法
    • US4813965A
    • 1989-03-21
    • US162072
    • 1988-02-29
    • Peter R. Roberts
    • Peter R. Roberts
    • A61F2/00A61F2/30A61F2/36B23K35/30A61F1/24
    • B23K35/3006A61F2/30767A61F2/3094A61F2/3662A61F2002/30242A61F2002/30453A61F2002/30769A61F2002/3631A61F2220/0058A61F2230/0071A61F2310/00023A61F2310/00029A61F2310/00407A61F2310/00413A61F2310/0052
    • Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the particles, and placing the particles onto the substrate. The device is heated to a first temperature slightly below the melting point of the silver material, then briefly heated to a second temperature above 1100.degree. C. to rapidly melt the silver material to wet the particles and substrate and to generate alloying among the silver material, the particles, and the substrate. The device is allowed to cool to solidify the alloy and unite the particles and substrate to form a porous coating on the device. Also disclosed are a prosthetic device having a metal shaft for insertion into a bone canal, and a porous coating of metal particles brazed to the metal shaft by a silver material. A porous coating preparation to be applied to a metal substrate, including metal particles, silver material, and a vaporizable binder for initially securing the particles to the substrate is further disclosed.
    • 金属片在两级加热过程中与银料接合。 在一个应用中,通过在基板和颗粒之间插入银材料并将颗粒放置在基板上来形成装置的金属基板上的金属颗粒的钎焊多孔涂层。 该装置被加热到略低于银材料熔点的第一温度,然后短暂加热到高于1100℃的第二温度,以快速熔化银材料以润湿颗粒和基材,并在银材料之间产生合金化 ,颗粒和基材。 允许该装置冷却以固化合金并使颗粒和基底结合以在该装置上形成多孔涂层。 还公开了一种具有用于插入骨管的金属轴的假体装置和通过银材料钎焊到金属轴的金属颗粒的多孔涂层。 进一步公开了一种应用于金属基底的多孔涂层制剂,包括金属颗粒,银材料和用于最初将颗粒固定到基底的可汽化粘合剂。
    • 5. 发明授权
    • Dynamic aortic patch for thoracic or abdominal implantation
    • 用于胸部或腹部植入的动态主动脉瓣
    • US4630597A
    • 1986-12-23
    • US604944
    • 1984-04-30
    • Adrian KantrowitzPaul S. Freed
    • Adrian KantrowitzPaul S. Freed
    • A61B17/12A61M1/10A61M1/12A61F1/24A61M1/03
    • A61M1/1037A61B17/12109A61B17/12136A61M1/122A61M1/106
    • An improved dynamic aortic patch is constructed with an elongate semi-rigid shell member having a concave inner surface and a flexible membrane integrally bonded to the outer surface of the shell to define an inflatable and deflatable chamber between the concave inner surface and the membrane. The pumping capacity of the patch is determined by the concavity of the inner surface of the shell member, thus enabling the construction of a patch which may be implanted in the thoracic cavity (small concavity) or in the abdomen (large concavity). A fabric layer bonded to the membrane over the area overlying the outer surface of the shell has a peripheral suture flange projecting freely clear of the membrane, and a temporary shield adapted to overlie the fabric layer may be employed to assure that sutures placed to attach the patch within an opening in the aorta are not inadvertently passed through the membrane.
    • 改进的动态主动脉贴片由具有凹形内表面的细长半刚性壳构件和与外壳的外表面整体结合的柔性膜构成,以在凹内表面和膜之间限定可充气和可放气的腔室。 贴片的抽吸能力由壳体内表面的凹度确定,从而能够构建可植入胸腔(小凹陷)或腹部(大凹陷)的贴片。 在覆盖壳的外表面的区域上结合到膜上的织物层具有自由地远离膜突出的外围缝合线凸缘,并且可以采用适于覆盖在织物层上的临时护罩,以确保将缝合线 主动脉开口内的斑块不会无意中通过膜。
    • 6. 发明授权
    • Method of producing a bone substitute material
    • 骨替代材料的制造方法
    • US4623553A
    • 1986-11-18
    • US741170
    • 1985-06-04
    • Peter RiesFrank BaumgartHeinz Mittelmeier
    • Peter RiesFrank BaumgartHeinz Mittelmeier
    • A61L27/00A61L27/46A01N1/02A61F1/00A61F1/24A61F5/04
    • A61L27/46A61L2430/02
    • For producing the bone substitute material from collagen and hydroxyapatite, an aqueous solution of cleaned collagen is mixed with a cross-linking agent causing only a partial cross-linking, and the mixture is lyophilized.The quantity of the cross-linking agent is chosen such that the collagen retains its resorbability and its absorptivity vis-a-vis bodily fluids, the material further showing no undesirable side effects.Preferably less than 1% by weight of formaldehyde, one of the preferred cross-linking agents, is added, with reference to the dry weight of collagen, and sintered apatite grains with a diameter of 50-300 .mu.m are used.Such a bone substitute material is stronger and less tearable as previously known materials and insures a good promotion of the growth of own bone tissue and the substitution by it.
    • 为了从胶原和羟基磷灰石生产骨替代材料,将清洁胶原的水溶液与仅引起部分交联的交联剂混合,并将混合物冻干。 选择交联剂的量使得胶原蛋白质保持其可再吸收性及其相对于体液的吸收性,该物质进一步显示不期望的副作用。 优选地,相对于胶原的干重,添加少于1重量%的甲醛,优选的交联剂之一,并且使用直径为50-300μm的烧结磷灰石颗粒。 这样的骨替代材料比以前已知的材料更坚固,更不可撕裂,并确保良好地促进自身骨组织的生长及其替代。
    • 8. 发明授权
    • Intraocular lens with resilient support means
    • 具有弹性支撑装置的人工晶状体
    • US4480340A
    • 1984-11-06
    • US235585
    • 1981-02-18
    • Dennis D. Shepard
    • Dennis D. Shepard
    • A61F2/16A61F1/16A61F1/24
    • A61F2/16A61F2002/1681
    • An intraocular lens for an eye including a lens body having a first sector end and a second sector end which is adapted to be positioned in relationship to the pupil such as in front of or behind the pupil and two sets of resilient support means wherein each of the resilient support means has one end secured to the lens body around the periphery of the lens within the first sector or the second sector and the other ends of the resilient support means which terminate at an annular shaped guide and support element and wherein each of the resilient support means is secured in the periphery of the lens portion in the first sector end or the second sector end in opposed alignment to each other and positioned at a selected diverging angle relative to the other resilient support means in that sector and wherein the resilient support means extend outwardly from the lens body and in substantially the plane of the lens portion enabling the annular shaped guide and support elements to slideably engage tissue in at least one of the anterior chamber or the posterior chamber of the eye causing the resilient support means to deflect within the plane of the lens body to self-adjust and position the lens body in front of or behind the pupil is shown.
    • 一种用于眼睛的眼内透镜,包括具有第一扇形端部和第二扇形端部的透镜主体,该第一扇形端部适于与诸如瞳孔前面或后面的光瞳相关联地定位,以及两组弹性支撑装置, 弹性支撑装置的一端在第一扇区或第二扇区内的透镜周围固定到透镜体,弹性支撑装置的另一端终止于环形引导和支撑元件,并且其中每个 弹性支撑装置固定在第一扇区端部或第二扇形端部中的透镜部分的周边中,彼此相对对准并且相对于该扇区中的另一个弹性支撑装置定位成选定的发散角,并且其中弹性支撑件 装置从透镜体向外延伸并且在透镜部分的基本上平面内,使环形引导件和支撑元件能够可滑动地e 示出了在眼睛的前房或后房中的至少一个中的行李组织,导致弹性支撑装置在透镜体的平面内偏转以自动调节并且将透镜体定位在瞳孔的前面或后面。
    • 9. 发明授权
    • Keratoprosthesis
    • 角化假体
    • US4470159A
    • 1984-09-11
    • US354474
    • 1982-03-03
    • Gholam A. Peyman
    • Gholam A. Peyman
    • A61F2/14A61F2/16A61F1/16A61F1/24
    • A61F2/142A61F2/16
    • A keratoprosthesis having a generally cylindrical lens structure, extending anteriorly to the corneal stroma and posteriorly through the pupil and into the posterior chamber, and an anterior chamber supporting means. Certain preferred embodiments of the invention further include an anteriorly removable lens element, a lens structure having a posterior end of predetermined curvature for functioning as an intraocular permanent lens and an intracorneal flange support. The keratoprosthesis is virtually incapable of being extruded and permits subsequent visual correction without further surgical intrusion into the anterior chamber.
    • 具有大致圆柱形透镜结构的角膜假体,其前方延伸到角膜基质,并且向后延伸穿过瞳孔并进入后房,以及前房支撑装置。 本发明的某些优选实施例还包括可前移的透镜元件,具有预定曲率后端的透镜结构,用作眼内永久性透镜和凸状内凸缘支撑。 角膜假体几乎不能被挤出,并允许随后的视觉矫正,而不会进一步手术侵入前房。
    • 10. 发明授权
    • Joint endoprosthesis
    • US4470158A
    • 1984-09-11
    • US199928
    • 1979-11-13
    • Michael J. PappasFrederick F. Buechel
    • Michael J. PappasFrederick F. Buechel
    • A61F2/00A61F2/30A61F2/38A61F2/42A61F1/24
    • A61F2/3868A61F2/3804A61F2/4202A61F2002/30116A61F2002/30497A61F2002/30883A61F2002/30904A61F2002/3881A61F2002/3895A61F2220/0025
    • Joint endoprosthesis for the total replacement of degenerate joints such as the ankle, knee, elbow, wrist and finger. When embodied as an ankle endoprosthesis (10), the device comprises a tibial component (11) for being secured to the tibia and which provides a first bearing surface (21a); a talar component (13) for being secured to the talus anhd which provides a second bearing surface (34) which is at least a segment of a surface of revolution about a first axis; and a tibial insert (12) intermediate the tibial and talar components (11 and 13) which provides a third bearing surface (26a) which provides area contact with the first bearing surface (21a) and which is engageable therewith to permit relative rotation between the tibial component (11) with respect to the tibial insert (12) and the talar component (13) about a second axis which is not parallel to the first axis and is substantially parallel to the shaft of the tibia and which relative rotation provides one of only two degrees of freedom of rotational movement of said tibia with respect to said talus, and wherein the tibial insert (12) is further provided with a fourth bearing surface (29) in area contact with the second bearing surface (34) which is no more than one-half a complete surface of revolution and for area contact sliding engagement therewith to permit relative rotational movement of the tibial component (11) and tibial insert (12) with respect to the talar component (13) about the first axis which relative rotation thereby provides the second of only two degrees of freedom of rotational movement of said tibia with respect to said talus so long as these bearing surfaces are kept in area contact but allowing a third rotational motion by partial separation of these surfaces.