中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.021 seconds)

    Heat-treated tantalum-alloy products, implantable medical devices incorporating same, and methods of processing tantalum-alloy products
    2.
    发明授权
    Heat-treated tantalum-alloy products, implantable medical devices incorporating same, and methods of processing tantalum-alloy products 有权
    热处理的钽合金产品，结合其的可植入医疗装置以及加工钽合金产品的方法

    公开(公告)号：US08790393B2

    公开(公告)日：2014-07-29

    申请号：US13271869

    申请日：2011-10-12

    Applicant: Rainer Bregulla ,  Randolf von Oepen ,  Pamela A Kramer-Brown ,  Austin M Leach

    Inventor： Rainer Bregulla ,  Randolf von Oepen ,  Pamela A Kramer-Brown ,  Austin M Leach

    IPC: A61F2/91

    CPC classification number: A61L31/022 ,  A61L31/14

    Abstract: The present disclosure is directed to tantalum-alloy products, implantable medical devices that incorporate tantalum-alloy products such as stents or other implantable medical devices, methods of making and/or processing the tantalum-alloy products and implantable medical devices, and methods of using the implantable medical devices. In an embodiment, a stent includes a stent body having a plurality of struts. At least a portion of the stent body is made from a tantalum alloy. The tantalum alloy includes a tantalum content of about 77 weight % (“wt %”) to about 92 wt %, a niobium content of about 7 wt % to about 13 wt %, and a tungsten content of about 1 wt % to about 10 wt %. The tantalum alloy exhibits at least one mechanical property modified by heat treatment thereof, such as yield strength, ultimate tensile strength, or ductility.

    Abstract translation: 本公开涉及钽合金产品，结合钽合金产品例如支架或其他可植入医疗装置的可植入医疗装置，制造和/或加工钽合金产品和可植入医疗装置的方法以及使用方法 可植入医疗器械。 在一个实施例中，支架包括具有多个支柱的支架主体。 支架主体的至少一部分由钽合金制成。 钽合金包括约77重量％（“重量％”）至约92重量％的钽含量，约7重量％至约13重量％的铌含量和约1重量％至约10重量％的钨含量 重量％。 钽合金表现出至少一种通过其热处理改性的机械性能，例如屈服强度，极限拉伸强度或延展性。

    MANUFACTURE OF FINE-GRAINED MATERIAL FOR USE IN MEDICAL DEVICES
    7.
    发明申请
    MANUFACTURE OF FINE-GRAINED MATERIAL FOR USE IN MEDICAL DEVICES 有权
    细粒材料在医疗器械中的应用

    公开(公告)号：US20120265291A1

    公开(公告)日：2012-10-18

    申请号：US13523718

    申请日：2012-06-14

    Applicant: Pamela A. Kramer-Brown ,  John William Morris, JR.

    Inventor： Pamela A. Kramer-Brown ,  John William Morris, JR.

    IPC: A61F2/86

    CPC classification number: A61L29/02 ,  A61F2/01 ,  A61F2/91 ,  A61F2/915 ,  A61F2002/075 ,  A61F2002/91533 ,  A61F2002/91575 ,  A61F2230/005 ,  A61F2230/0054 ,  A61F2230/0067 ,  A61L31/022 ,  A61L31/14

    Abstract: Medical devices are manufactured from fine grained materials, processed from of a variety of metals and alloys, such as stainless steel, cobalt-chromium and nickel-titanium alloys. A fine grained metal or alloy is formed from a specimen rapidly heated to its recrystallization temperature, and then subjected to high temperature, multi-axial deformation, for example, by heavy cross-forging or swaging. The deformed specimen may be cooled and reheated to a second recrystallization temperature. The metal or alloy in the specimen is then allowed to recrystallize, such that the grain size is controlled by quenching the specimen to room temperature. A desired medical device is then configured from the fine grained material. Decreasing the average grain size of a substrate material and increasing the number of grains across a thickness of a strut or similar component of the medical device increases the strength of the device and imparts other beneficial properties into the device.

    Abstract translation: 医疗器械由细粒材料制成，由各种金属和合金（如不锈钢，钴铬和镍钛合金）加工而成。 由快速加热到其再结晶温度的试样形成细粒状金属或合金，然后例如通过重交叉锻造或模锻进行高温多轴变形。 变形的试样可以冷却并再次加热至第二再结晶温度。 然后将样品中的金属或合金重结晶，使得通过将样品淬火至室温来控制晶粒尺寸。 然后从细粒材料配置期望的医疗装置。 降低衬底材料的平均晶粒尺寸并增加穿过医疗装置的支柱或类似部件的厚度的晶粒数增加了装置的强度并赋予装置其它有益特性。

    Radiopaque and MRI compatible nitinol alloys for medical devices
    9.
    发明授权
    Radiopaque and MRI compatible nitinol alloys for medical devices 有权
    用于医疗器械的不透射线和MRI兼容镍钛诺合金

    公开(公告)号：US07128757B2

    公开(公告)日：2006-10-31

    申请号：US10814326

    申请日：2004-03-30

    Applicant: John F. Boylan ,  Daniel L. Cox ,  Pamela A. Kramer-Brown

    Inventor： John F. Boylan ,  Daniel L. Cox ,  Pamela A. Kramer-Brown

    IPC: A61F2/90

    CPC classification number: A61L31/022 ,  A61F2/915 ,  A61F2002/91516 ,  A61F2002/91525 ,  A61F2002/91533 ,  A61F2002/91575 ,  A61F2230/0013 ,  A61F2250/0098 ,  A61L31/18 ,  A61L2400/16 ,  C22C19/00

    Abstract: A radiopaque nitinol medical device such as a stent for use with or implantation in a body lumen is disclosed. The stent is made from a superelastic alloy such as nickel-titanium or nitinol, and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, or hafnium. The nitinol stent has improved radiopacity yet retains its superelastic and shape memory behavior and further maintains a thin strut/wall thickness for high flexibility. Another embodiment includes a balloon expandable stent made from a radiopaque and MRI compatible alloy such as nitinol and includes a ternary element selected from the group of chemical elements consisting of iridium, platinum, gold, rhenium, tungsten, palladium, rhodium, tantalum, silver, ruthenium, hafnium, osmium, zirconium, niobium, or molybdenum.

    Abstract translation: 公开了一种不透射线的镍钛诺医疗装置，例如用于或植入体腔内的支架。 支架由镍 - 钛或镍钛诺等超弹性合金制成，并且包括选自由铱，铂，金，铼，钨，钯，铑，钽，银，钌等组成的化学元素组的三元元素， 或铪。 镍钛诺支架具有改善的射线不透性，但仍然保持其超弹性和形状记忆行为，并进一步保持薄的支柱/壁厚以获得高度的灵活性。 另一个实施方案包括由不透射线和MRI相容合金如镍钛诺制成的球囊可扩张支架，并且包括选自由铱，铂，金，铼，钨，钯，铑，钽，银等组成的化学元素组的三元元素， 钌，铪，锇，锆，铌或钼。

Patent Agency Ranking