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    TITANIUM-NIOBIUM-HAFNIUM ALLOY SHAPE MEMORY WIRE
    2.
    发明申请
    TITANIUM-NIOBIUM-HAFNIUM ALLOY SHAPE MEMORY WIRE 审中-公开
    钛 - 铌 - 铌合金形状记忆线

    公开(公告)号：WO2014182691A2

    公开(公告)日：2014-11-13

    申请号：PCT/US2014/036961

    申请日：2014-05-06

    Applicant: FORT WAYNE METALS RESEARCH PRODUCTS CORP.

    Inventor： SCHAFFER, Jeremy, E.

    IPC: C22C14/00

    CPC classification number: A61M25/09 ,  A61F2/86 ,  A61F2210/0014 ,  A61L31/022 ,  A61L31/14 ,  A61L2400/16 ,  A61M2025/09141 ,  C21D1/26 ,  C21D8/06 ,  C21D9/525 ,  C21D2201/01 ,  C22C14/00 ,  C22C30/00 ,  C22F1/006 ,  C22F1/183

    Abstract: Ti-Nb-Hf/Zr-(Cr) alloy shape-memory wires are provided which are suitable for use in medical devices and actuators, and methods for manufacturing such wires are provided. The present shape-memory Ti-Nb-Hf/Zr-(Cr) alloy is a superelastic wire material particularly suited for in vivo applications. For example, the present Ti-Nb-Hf/Zr-(Cr) alloy wire is radiopaque, thereby enabling surgical use of a monolithic, shape-memory alloy wire while preserving the ability to monitor the in vivo location of the wire through X-ray or other radiation-based imaging systems. In addition, the present Ti-Nb-Hf/Zr-(Cr) alloy can be manufactured to exhibit shape-memory alloy material properties without the use of nickel as an alloy constituent, thereby accommodating nickel-sensitive patients. The present Ti-Nb-Hf/Zr-(Cr) alloy can also be processed to exhibit a martensite/austenite transformation temperature near body-temperature, i.e., 37 °C, so that shape-memory effects can be utilized to accomplish work in vivo .

    Abstract translation: 提供适用于医疗器械和致动器的Ti-Nb-Hf / Zr-（Cr）合金形状记忆线，以及制造这种线的方法。 本形状记忆Ti-Nb-Hf / Zr-（Cr）合金是特别适用于体内应用的超弹性线材。 例如，本发明的Ti-Nb-Hf / Zr-（Cr）合金线是不透射线的，从而能够外部使用整体式的形状记忆合金丝，同时保持通过X射线监测线的体内位置的能力， 射线或其他基于辐射的成像系统。 此外，本发明的Ti-Nb-Hf / Zr-（Cr）合金可以制造成具有形状记忆合金材料性质而不使用镍作为合金成分，从而适应镍敏感的患者。 目前的Ti-Nb-Hf / Zr-（Cr）合金也可以加工成在体温附近呈现出马氏体/奥氏体转变温度，即37℃，从而可以利用形状记忆效应来完成工作 体内。

    PROCESSING OF NICKEL-TITANIUM ALLOYS
    3.
    发明申请
    PROCESSING OF NICKEL-TITANIUM ALLOYS 审中-公开
    镍 - 钛合金的加工

    公开(公告)号：WO2012021257A3

    公开(公告)日：2012-08-09

    申请号：PCT/US2011044413

    申请日：2011-07-19

    Applicant: ATI PROPERTIES INC ,  WOJCIK C CRAIG

    Inventor： WOJCIK C CRAIG

    IPC: C22C1/00 ,  B22F1/00 ,  B22F3/24 ,  C22C1/04

    CPC classification number: B22F3/24 ,  B22F1/0014 ,  B22F3/02 ,  B22F9/08 ,  B22F2998/10 ,  C21D2201/01 ,  C21D2211/001 ,  C21D2211/008 ,  C22C1/0433 ,  C22C14/00 ,  C22C19/007 ,  C22C19/03 ,  C22C30/00 ,  C22F1/006 ,  C22F1/10 ,  Y10T428/12 ,  Y10T428/12431 ,  B22F3/15

    Abstract: Processes for producing a nickel-titanium alloy are disclosed. The processes are characterized by the production of nickel-titanium alloy articles having improved microstructure. A pre-alloyed nickel-titanium alloy is melted and atomized to form molten nickel-titanium alloy particles. The molten nickel-titanium alloy particles are cooled to form nickel-titanium alloy powder. The nickel-titanium alloy powder is consolidated to form a fully-densified nickel-titanium alloy preform that is hot worked to form a nickel-titanium alloy article. Any second phases present in the nickel-titanium alloy article have a mean size of less than 10 micrometers measured according to ASTM E1245 - 03 (2008) or an equivalent method.

    Abstract translation: 公开了生产镍钛合金的工艺。 该工艺的特征在于生产具有改善的微观结构的镍钛合金制品。 预合金化的镍钛合金被熔化并雾化以形成熔融的镍钛合金颗粒。 熔融的镍钛合金颗粒被冷却以形成镍钛合金粉末。 镍 - 钛合金粉末被压实以形成热加工形成镍钛合金制品的完全致密化的镍钛合金预制件。 存在于镍 - 钛合金制品中的任何第二相具有根据ASTM E1245-03（2008）或等效方法测量的小于10微米的平均尺寸。

    THERMAL CONTROL OF SHAPE MEMORY ALLOYS
    4.
    发明申请
    THERMAL CONTROL OF SHAPE MEMORY ALLOYS 审中-公开
    形状记忆合金的热控制

    公开(公告)号：WO2010057269A1

    公开(公告)日：2010-05-27

    申请号：PCT/AU2009/001520

    申请日：2009-11-23

    Applicant: CO-OPERATIVE RESEARCH CENTRE FOR ADVANCED AUTOMOTIVE TECHNOLOGY LTD ,  LEARY, Martin ,  SCHIAVONE, Francesco ,  SUBIC, Aleksandar ,  MILLER, Jason

    Inventor： LEARY, Martin ,  SCHIAVONE, Francesco ,  SUBIC, Aleksandar ,  MILLER, Jason

    IPC: C22F1/00

    CPC classification number: F03G7/065 ,  C21D2201/01 ,  Y10T428/23 ,  Y10T428/31678

    Abstract: The invention relates to shape memory alloys. In particular, the invention relates to a shape memory alloy arrangement that includes a shape memory alloy member that is configured to undergo transformation between marten site and austenite phases in response to a change in temperature of the shape memory alloy member. The arrangement also includes a heat conductive material in contact with the shape memory alloy member wherein the heat conductive material is operable for controlling the transfer of heat to or from the shape memory alloy member by conduction. The invention also relates to a shape memory alloy actuator including the shape memory alloy arrangement of the invention. The shape memory alloy arrangement is configured to be connected to a movable object and to move the object in response to a change in temperature of the shape memory alloy member.

    Abstract translation: 本发明涉及形状记忆合金。 特别地，本发明涉及一种形状记忆合金装置，其包括形状记忆合金构件，其被配置为响应于形状记忆合金构件的温度变化而在马氏体位置和奥氏体相之间进行转变。 该布置还包括与形状记忆合金构件接触的导热材料，其中导热材料可操作用于通过传导来控制向形状记忆合金构件或从形状记忆合金构件传递热量。 本发明还涉及包括本发明的形状记忆合金装置的形状记忆合金致动器。 形状记忆合金布置被配置为连接到可移动物体并且响应于形状记忆合金构件的温度变化来移动物体。

    FATIGUE RESISTANT ENDOPROSTHESES
    5.
    发明申请
    FATIGUE RESISTANT ENDOPROSTHESES 审中-公开
    耐疲劳内吞

    公开(公告)号：WO2007134321A2

    公开(公告)日：2007-11-22

    申请号：PCT/US2007/068969

    申请日：2007-05-15

    Applicant: ABBOTT LABORATORIES ,  SHRIVASTAVA, Sanjay ,  KANG, Kevin

    Inventor： SHRIVASTAVA, Sanjay ,  KANG, Kevin

    IPC: A61F2/82

    CPC classification number: C22F1/10 ,  A61F2/82 ,  A61F2210/0019 ,  A61L31/022 ,  A61L31/14 ,  A61L2400/16 ,  C21D2201/01 ,  C22F1/006

    Abstract: A superelastic endoprosthesis can have improved fatigue resistance, and improved resistance to crack formation by being configuring to have an austenitic finish temperature from about 5 degrees Celsius to about 35 degrees Celsius, a stress- strain curve having an upper plateau stress from about 40 ksi to about 80 ksi, and a lower plateau stress from about 5 ksi to about 50 ksi. Such an endoprosthesis may be fabricated by heating at least a portion of the endoprosthetic body in a fluid, such as air, salt bath, or fluidized sand, having a temperature from about 400 degrees Celsius to about 600 degrees Celsius for at least about 30 seconds. Additionally, only portions of an endoprosthesis may selectively be subjected to the heating parameters of the present invention such that the endoprosthesis exhibits an increased radial stiffness and an increased flexibility in the longitudinal direction.

    Abstract translation: 超弹性内置假体可以具有改善的抗疲劳性，并且通过将奥氏体终点温度设定为约5摄氏度至约35摄氏度，具有高的平台应力约40ksi的应力 - 应变曲线 约80ksi，较低的平台压力约5ksi至约50ksi。 可以通过将具有约400摄氏度至约600摄氏度的温度的流体（例如空气，盐浴或流化砂）中的至少一部分假体内体进行加热至少约30秒来制造这种内置假体 。 此外，内部假体的仅部分可以选择性地受到本发明的加热参数的影响，使得内假体呈现出增加的径向刚度和在纵向方向上增加的柔性。

    IRON-MANGANESE-SILICON-BASED SHAPE MEMORY ALLOYS CONTAINING CHROMIUM AND NITROGEN
    6.
    发明申请
    IRON-MANGANESE-SILICON-BASED SHAPE MEMORY ALLOYS CONTAINING CHROMIUM AND NITROGEN 审中-公开
    基于硅锰基的形状记忆合金含铬和氮

    公开(公告)号：WO02034958A1

    公开(公告)日：2002-05-02

    申请号：PCT/IB2001/002009

    申请日：2001-10-26

    IPC: C21D6/00 ,  C22C38/34 ,  C22C38/38

    CPC classification number: C21D6/005 ,  C21D2201/01 ,  C22C38/34 ,  C22C38/38

    Abstract: Iron-manganese-silicon-based shape memory alloys comprising: (a) an effective amount of Mn greater than about 18%; (b) an effective amount of Si greater than about 5%; (c) from about 1% to about 8% Cr; (d) an effective amount of N; and (e) the balance of Fe. Preferably, the alloys comprise from about 20% to about 30% Mn, from about 5,5% to about 6% of Si, from about 2% to about 5% of Cr, from about 0,1% to about 0.5% N, and from about 61% to about 70% Fe. Preferred embodiments demonstrate about 100% shape recovery with one cylce of thermo-mechanical training with a prestain of about 3%. Methods for training the alloys are provided, comprising the steps of tensile deforming samples by applying 3.0% or 3.5& prestain at room temperature, heatin each sample to approximately 600 DEG C, and then cooling them after keeping them at this temperature for 10 minutes.

    Abstract translation: 铁 - 锰 - 硅基形状记忆合金，包括：（a）有效量的Mn大于约18％; （b）有效量的Si大于约5％; （c）约1％至约8％的Cr; （d）有效量的N; 和（e）余量的Fe。 优选地，合金包括约20％至约30％的Mn，约5,5％至约6％的Si，约2％至约5％的Cr，约0.1％至约0.5％的N ，和约61％至约70％的Fe。 优选的实施方案展示了大约100％的形状恢复，具有约3％的预应力的热机械训练。 提供了培养合金的方法，其中包括以下步骤：在室温下加入3.0％或3.5％的预拉伸试样，将样品加热至约600℃，然后在将其保持在该温度下10分钟后冷却。

    SYSTEMS AND METHODS FOR TAILORING COEFFICIENTS OF THERMAL EXPANSION BETWEEN EXTREME POSITIVE AND EXTREME NEGATIVE VALUES
    8.
    发明申请
    SYSTEMS AND METHODS FOR TAILORING COEFFICIENTS OF THERMAL EXPANSION BETWEEN EXTREME POSITIVE AND EXTREME NEGATIVE VALUES 审中-公开
    用于定量极端积极和极端负值的热膨胀系数的系统和方法

    公开(公告)号：WO2014201239A2

    公开(公告)日：2014-12-18

    申请号：PCT/US2014/042105

    申请日：2014-06-12

    Applicant: THE TEXAS A&M UNIVERSITY SYSTEM

    Inventor： MONROE, James A. ,  KARAMAN, Ibrahim ,  ARROYAVE, Raymundo

    IPC: C21D8/02 ,  C22F1/00

    CPC classification number: C21D8/0205 ,  C21D8/02 ,  C21D8/06 ,  C21D8/065 ,  C21D2201/01 ,  C21D2211/004 ,  C21D2211/008 ,  C22F1/08 ,  C22F1/10 ,  C22F1/18 ,  C22F1/183

    Abstract: Systems and methods disclosed herein relate to the manufacture of metallic material with a thermal expansion coefficient in a predetermined range, comprising: deforming, a metallic material comprising a first phase and a first thermal expansion coefficient. In response to the deformation, at least some of the first phase is transformed into a second phase, wherein the second phase comprises martensite, and orienting the metallic material in at least one predetermined orientation, wherein the metallic material, subsequent to deformation, comprises a second thermal expansion coefficient, wherein the second thermal expansion coefficient is within a predetermined range, and wherein the thermal expansion is in at least one predetermined direction. In some embodiments, the metallic material comprises the second phase and is thermo-mechanically deformed to orient the grains in at least one direction.

    Abstract translation: 本文公开的系统和方法涉及具有预定范围的热膨胀系数的金属材料的制造，包括：使包含第一相和第一热膨胀系数的金属材料变形。 响应于变形，第一相中的至少一些被转变成第二相，其中第二相包括马氏体，并且以至少一个预定取向定向金属材料，其中金属材料在变形之后包括一个 第二热膨胀系数，其中所述第二热膨胀系数在预定范围内，并且其中所述热膨胀为至少一个预定方向。 在一些实施例中，金属材料包括第二相，并被热机械变形以使晶粒沿至少一个方向取向。

    STENT WITH IMPROVED FLEXIBILITY AND METHOD FOR MAKING SAME
    10.
    发明申请
    STENT WITH IMPROVED FLEXIBILITY AND METHOD FOR MAKING SAME 审中-公开
    具有改进的柔性的方法和制备它的方法

    公开(公告)号：WO2008089134A3

    公开(公告)日：2008-10-23

    申请号：PCT/US2008050993

    申请日：2008-01-14

    Applicant: MEDTRONIC VASCULAR INC ,  KRIVORUCHKO MICHAEL ,  LESSAR JOSEPH

    Inventor： KRIVORUCHKO MICHAEL ,  LESSAR JOSEPH

    IPC: A61F2/90 ,  B23K33/00 ,  C21D7/04

    CPC classification number: B21F99/00 ,  A61F2/90 ,  A61F2230/0054 ,  A61F2250/0029 ,  C21D7/04 ,  C21D2201/01 ,  Y10T29/49

    Abstract: A stent and a method for manufacturing a stent are provided. The stent includes a first ring having a plurality of peaks and a plurality of valleys, a second ring having a plurality of peaks and a plurality of valleys, and a connector that connects one of the peaks of the first ring to one of the valleys of the second ring. The connected peak of the first ring includes a deformed portion that extends towards the connected valley of the second ring. The method includes forming a first ring having a plurality of peaks and a plurality of valleys, forming a second ring having a plurality of peaks and a plurality of valleys, deforming a portion of at least one of the peaks of the first ring, and connecting the deformed portion of the peak of the first ring to one of the valleys of the second ring.

    Abstract translation: 提供支架和制造支架的方法。 支架包括具有多个峰和多个谷的第一环，具有多个峰和多个谷的第二环，以及将第一环的一个峰连接到其中一个谷的连接器 第二个戒指 第一环的连接峰包括向第二环的连接谷延伸的变形部分。 该方法包括形成具有多个峰和多个谷的第一环，形成具有多个峰和多个谷的第二环，使第一环的至少一个峰的一部分变形，以及连接 第一环的峰的变形部分到第二环的谷中的一个。

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