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公开(公告)号：US20140216607A1
公开(公告)日：2014-08-07
申请号：US14053744
申请日：2013-10-15
Applicant: Ormco Corporation
Inventor： Alfred David Johnson
CPC classification number: A61L31/14 , A61L27/047 , A61L27/50 , A61L31/022 , A61L2400/16 , C22C9/01 , C30B15/00 , C30B15/36 , C30B29/52 , C30B31/00 , C30B33/005
Abstract: We describe herein biocompatible single crystal Cu-based shape memory alloys (SMAs). In particular, we show biocompatibility based on MEM elution cell cytotoxicity, ISO intramuscular implant, and hemo-compatibility tests producing negative cytotoxic results. This biocompatibility may be attributed to the formation of a durable oxide surface layer analogous to the titanium oxide layer that inhibits body fluid reaction to titanium nickel alloys, and/or the non-existence of crystal domain boundaries may inhibit corrosive chemical attack. Methods for controlling the formation of the protective aluminum oxide layer are also described, as are devices including such biocompatible single crystal copper-based SMAs.
Abstract translation: 我们在此描述生物相容性单晶Cu基形状记忆合金（SMA）。 特别地，我们显示基于MEM洗脱细胞毒性，ISO肌肉内植入物和产生负性细胞毒性结果的血液相容性测试的生物相容性。 这种生物相容性可归因于形成类似于氧化钛层的耐久的氧化物表面层，其抑制对钛镍合金的体液反应，和/或不存在晶体结构域边界可以抑制腐蚀性化学侵蚀。 还描述了用于控制形成保护性氧化铝层的方法，以及包括这种生物相容性单晶铜基SMA的装置。
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公开(公告)号：US20140076465A1
公开(公告)日：2014-03-20
申请号：US13736671
申请日：2013-01-08
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Walter A. Bachmann
CPC classification number: C22F1/006 , B22D7/005 , B22D7/02 , C22C1/02 , C22C9/01 , C22C19/03 , C22F1/002 , C22F1/04 , C22F1/057 , C22F1/08 , C22F1/10 , C30B15/00 , C30B29/52
Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
Abstract translation: 用于形成单晶形状记忆合金（SMA）的金属锭可以通过将薄层材料合金化而具有高可靠性和可控制造。 在这种方法中，在其它材料（例如铜和镍层）的层之间的薄平坦层中提供反应层（例如铝）。 当堆叠层在坩埚中被真空加热至反应层的熔融温度时，其变成反应性并且化学键合到其它层，并且可以形成共晶体，随着温度的进一步增加，熔体均匀且均匀地在低于 铜和镍的熔化温度。 与其他合金化方法相比，氧化和蒸发大大降低，并且使来自湍流的材料的损失最小化。
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公开(公告)号：US09328406B2
公开(公告)日：2016-05-03
申请号：US14230214
申请日：2014-03-31
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Sammel S. Alauddin
CPC classification number: A61C7/20 , A61C2201/007 , C22C9/01 , C22F1/006 , C22F1/08
Abstract: Methods are provided for shape-setting hyperelastic, single-crystal shape memory alloy (SMA) material while preserving the hyperelastic properties of the material. A wire or rod of a single crystal shape memory alloy material is heated to an annealing temperature (Ta). While maintained at the annealing temperature, the wire or rod is shaped by driving the wire or rod and a shaping form together into contact with each other, and the shaped wire or rod is quenched in a quenching medium virtually simultaneously with the shaping.
Abstract translation: 提供了形状设计超弹性单晶形状记忆合金（SMA）材料的方法，同时保留了材料的超弹性。 将单晶形状记忆合金材料的线或棒加热至退火温度（Ta）。 在保持退火温度的同时，通过将线或棒和成形形式一起进行接合而将线或棒成形，并且成形的线或棒在淬火介质中与成型实质上同时淬火。
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公开(公告)号：US20140209218A1
公开(公告)日：2014-07-31
申请号：US14231769
申请日：2014-04-01
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Walter A. Bachmann
IPC: C22F1/00
CPC classification number: C22F1/006 , B22D7/005 , B22D7/02 , C22C1/02 , C22C9/01 , C22C19/03 , C22F1/002 , C22F1/04 , C22F1/057 , C22F1/08 , C22F1/10 , C30B15/00 , C30B29/52
Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
Abstract translation: 用于形成单晶形状记忆合金（SMA）的金属锭可以通过将薄层材料合金化而具有高可靠性和可控制造。 在这种改进的方法中，在其它材料（例如铜和镍层）的层之间的薄平坦层中提供反应层（例如铝）。 当堆叠层在坩埚中被真空加热至反应层的熔融温度时，其变成反应性并且化学键合到其它层，并且可以形成共晶体，随着温度的进一步增加，熔体均匀且均匀地在低于 铜和镍的熔化温度。 与其他合金化方法相比，氧化和蒸发大大降低，并且使来自湍流的材料的损失最小化。
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公开(公告)号：US20140209219A1
公开(公告)日：2014-07-31
申请号：US14230214
申请日：2014-03-31
Applicant: ORMCO CORPORATION
Inventor： Alfred David Johnson , Sammel S. Alauddin
IPC: C22F1/00
CPC classification number: A61C7/20 , A61C2201/007 , C22C9/01 , C22F1/006 , C22F1/08
Abstract: Methods are provided for shape-setting hyperelastic, single-crystal shape memory alloy (SMA) material while preserving the hyperelastic properties of the material. A wire or rod of a single crystal shape memory alloy material is heated to an annealing temperature (Ta). While maintained at the annealing temperature, the wire or rod is shaped by driving the wire or rod and a shaping form together into contact with each other, and the shaped wire or rod is quenched in a quenching medium virtually simultaneously with the shaping.
Abstract translation: 提供了形状设计超弹性单晶形状记忆合金（SMA）材料的方法，同时保留了材料的超弹性。 将单晶形状记忆合金材料的线或棒加热至退火温度（Ta）。 在保持退火温度的同时，通过将线或棒和成形形式一起进行接合而将线或棒成形，并且成形的线或棒在淬火介质中与成型几乎同时淬火。
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Patent Agency Ranking
公开(公告)号：US10561477B2
公开(公告)日：2020-02-18
申请号：US14844229
申请日：2015-09-03
Applicant: Ormco Corporation
Inventor： Alfred David Johnson
Abstract: Dental archwires of single-crystal shape memory alloys, methods of fabrication and apparatus for fabrication. A dental archwire is provided of a hyperelastic, single-crystal shape memory CuAlX alloy, where X is Ni, Mn, Nb, or Be. The dental archwire has a shape-set curved length and either a round diameter of between about 0.013 to about 0.026 inches or a rectangular cross-section with dimensions of between about 0.016 by 0.016 inches and about 0.020 by 0.030 inches.
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公开(公告)号：US10190199B2
公开(公告)日：2019-01-29
申请号：US15155696
申请日：2016-05-16
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Walter A. Bachmann
IPC: B22D7/00 , B22D7/02 , C22C1/02 , C22C9/01 , C22F1/00 , C22F1/08 , C30B15/00 , C30B29/52 , C22F1/04 , C22F1/10 , C22C19/03 , C22F1/057
Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
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公开(公告)号：US10154890B2
公开(公告)日：2018-12-18
申请号：US15145198
申请日：2016-05-03
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Sammel Shahrier Alauddin
Abstract: A dental archwire is provided having a pre-set shape including an elongate, curved length approximating the shape of a dental arch and a rectangular cross-section having a first dimension of 0.013-0.021 inch and a second dimension of 0.018-0.026 inch or a circular cross-section of diameter 0.013 through 0.026 inch over at least a portion of the elongate, curved length. The dental archwire in the pre-set shape comprises a hyperelastic, single crystal shape memory alloy that is free of elemental precipitates and is capable of exhibiting greater than a 10 percent strain recovery, a constant force deflection, negligible stress hysteresis, and a binding force to an orthodontic bracket equal or less than 4 N.
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公开(公告)号：US09340858B2
公开(公告)日：2016-05-17
申请号：US14231769
申请日：2014-04-01
Applicant: Ormco Corporation
Inventor： Alfred David Johnson , Walter A. Bachmann
CPC classification number: C22F1/006 , B22D7/005 , B22D7/02 , C22C1/02 , C22C9/01 , C22C19/03 , C22F1/002 , C22F1/04 , C22F1/057 , C22F1/08 , C22F1/10 , C30B15/00 , C30B29/52
Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
Abstract translation: 用于形成单晶形状记忆合金（SMA）的金属锭可以通过将薄层材料合金化而具有高可靠性和可控制造。 在这种改进的方法中，在其它材料（例如铜和镍层）的层之间的薄平坦层中提供反应层（例如铝）。 当堆叠层在坩埚中被真空加热至反应层的熔融温度时，其变成反应性并且化学键合到其它层，并且可以形成共晶体，随着温度的进一步增加，熔体均匀且均匀地在低于 铜和镍的熔化温度。 与其他合金化方法相比，氧化和蒸发大大降低，并且使来自湍流的材料的损失最小化。
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公开(公告)号：US09539372B2
公开(公告)日：2017-01-10
申请号：US14053744
申请日：2013-10-15
Applicant: Ormco Corporation
Inventor： Alfred David Johnson
IPC: C30B33/00 , C30B31/00 , C30B15/36 , C30B29/52 , A61L31/14 , A61L27/04 , A61L27/50 , A61L31/02 , C22C9/01 , C30B15/00
CPC classification number: A61L31/14 , A61L27/047 , A61L27/50 , A61L31/022 , A61L2400/16 , C22C9/01 , C30B15/00 , C30B15/36 , C30B29/52 , C30B31/00 , C30B33/005
Abstract: We describe herein biocompatible single crystal Cu-based shape memory alloys (SMAs). In particular, we show biocompatibility based on MEM elution cell cytotoxicity, ISO intramuscular implant, and hemo-compatibility tests producing negative cytotoxic results. This biocompatibility may be attributed to the formation of a durable oxide surface layer analogous to the titanium oxide layer that inhibits body fluid reaction to titanium nickel alloys, and/or the non-existence of crystal domain boundaries may inhibit corrosive chemical attack. Methods for controlling the formation of the protective aluminum oxide layer are also described, as are devices including such biocompatible single crystal copper-based SMAs.
Abstract translation: 我们在此描述生物相容性单晶Cu基形状记忆合金（SMA）。 特别地，我们显示基于MEM洗脱细胞毒性，ISO肌肉内植入物和产生负性细胞毒性结果的血液相容性测试的生物相容性。 这种生物相容性可归因于形成类似于氧化钛层的耐久的氧化物表面层，其抑制对钛镍合金的体液反应，和/或不存在晶体结构域边界可以抑制腐蚀性化学侵蚀。 还描述了用于控制形成保护性氧化铝层的方法，以及包括这种生物相容性单晶铜基SMA的装置。
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