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公开(公告)号：US06997071B2
公开(公告)日：2006-02-14
申请号：US10651462
申请日：2003-08-29
IPC分类号： G01N33/00
CPC分类号： C04B35/486 , C04B35/64 , C04B2235/3225 , C04B2235/662 , C04B2235/72 , C04B2235/765 , C04B2235/77 , C04B2235/785 , C04B2235/96 , C04B2235/963 , C04B2235/9684
摘要： The invention is a method of qualifying an implantable ceramic component made of high-purity dense yttria tetragonal zirconium oxide polycrystal (Y-TZP) by application of non-destructive tests. Specifically, a qualified Y-TZP ceramic component or witness sample is examined by X-ray diffraction to determine the initial monoclinic phase content. The component or witness sample is exposed to steam at 127° C. for a predetermined period of time, preferably six hours. The monoclinic phase content is determined for the post-exposure sample. The absolute difference between the initial monoclinic phase content and the post-exposure monoclinic phase content is calculated by difference. If the difference is less than 2.1% the sample is accepted. In an alternate embodiment, the components that pass the screening test are examined by ultrasonic testing to evaluate soundness of the ceramic component. Any component that presents a flaw of greater than three microns is rejected.
摘要翻译： 本发明是通过非破坏性试验对由高纯度致密氧化钇四方晶氧化锆多晶（Y-TZP）制成的可植入陶瓷组分进行鉴定的方法。 具体来说，通过X射线衍射检查合格的Y-TZP陶瓷组件或见证样品，以确定初始单斜相含量。 将组分或证人样品在127℃下暴露于预定时间段，优选6小时的蒸汽。 确定后曝光样品的单斜相含量。 通过差异计算初始单斜相相含量和曝光后单相相含量之间的绝对差异。 如果差异小于2.1％，样品被接受。 在替代实施例中，通过超声波测试来检查通过筛选测试的部件，以评估陶瓷部件的良好性。 任何呈现大于3微米的缺陷的组件都被拒绝。
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公开(公告)号：US06986453B2
公开(公告)日：2006-01-17
申请号：US10714193
申请日：2003-11-13
IPC分类号： B23K31/02
CPC分类号： C04B37/023 , B23K20/233 , C04B35/645 , C04B2235/6581 , C04B2237/123 , C04B2237/343 , C04B2237/346 , C04B2237/348 , C04B2237/403 , C04B2237/52 , C04B2237/708
摘要： The invention is a method of bonding a ceramic part to a metal part by heating a component assembly comprised of the metal part, the ceramic part, and a very thin essentially pure interlayer material of a compatible interlayer material placed between the two parts and heated at a temperature that is greater than the temperature of the eutectic formed between the metal part and the metal interlayer material, but that is less than the melting point of either the interlayer material, the ceramic part or the metal part. The component assembly is held in intimate contact at temperature in a non-reactive atmosphere for a sufficient time to develop a hermetic and strong bond between the ceramic part and the metal part. The bonded component assembly is optionally treated with acid to remove any residual free nickel and nickel salts, to assure a biocompatible component assembly for implantation in living tissue.
摘要翻译： 本发明是一种通过加热由金属部件，陶瓷部件组成的组件组件和位于两个部件之间的相容的夹层材料的非常薄的基本上纯的中间层材料来将陶瓷部件粘合到金属部件上并在 大于在金属部件和金属中间层材料之间形成的共晶体的温度，而不是中间层材料，陶瓷部件或金属部件的熔点的温度。 组件组件在非反应性气氛中的温度下保持紧密接触足够的时间以在陶瓷部件和金属部件之间形成气密和牢固的结合。 任选地用酸处理粘合组分组合物以除去任何残留的游离镍和镍盐，以确保用于植入生物组织的生物相容性组分组件。
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3.发明授权Material and method of forming yttria-stabilized zirconia to minimize low-temperature degradation 有权形成氧化钇稳定氧化锆的材料和方法，以尽量减少低温退化公开(公告)号：US07519419B2
公开(公告)日：2009-04-14
申请号：US10629291
申请日：2003-07-28
IPC分类号： A61N1/375
CPC分类号： C04B35/6455 , A61N1/37205 , C04B35/486 , C04B2235/3225 , C04B2235/658 , C04B2235/77 , C04B2235/785 , C04B2235/94
摘要： The invention is directed to a material and a method of substantially eliminating destructive low-temperature, humidity-enhanced phase transformation of yttria-stabilized zirconia in general, as well as eliminating low-temperature degradation of yttria-stabilized tetragonal zirconia polycrystalline ceramic (Y-TZP). The martensitic-type phase transformation from tetragonal to monoclinic is accompanied by severe strength degradation in a moist environment at low-temperature, specifically at room temperature as well as at body temperature. This class of materials has been chosen as the packaging material for small implantable neural-muscular sensors and stimulators because of the high fracture toughness and high mechanical strength. This destructive phase transformation has been substantially eliminated, thus ensuring the safety of long-term implants, by subjecting the sintered components to post-machining hot isostatic pressing, such that the average grain size is less than about 0.5 microns.
摘要翻译： 本发明涉及一般基本上消除氧化钇稳定氧化锆的破坏性低温，增湿相变的材料和方法，以及消除氧化钇稳定的四方晶氧化锆多晶陶瓷（Y- TZP）。 在低温下，特别是在室温以及在体温下，在潮湿的环境中伴随着从四方晶向单斜晶的马氏体相转变。 由于高断裂韧性和高机械强度，这类材料已经被选为小型可植入神经 - 肌肉传感器和刺激器的包装材料。 已经基本上消除了这种破坏性相变，从而通过对烧结组件进行后加热等静压来确保长期植入物的安全性，使得平均晶粒尺寸小于约0.5微米。
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公开(公告)号：US07331499B2
公开(公告)日：2008-02-19
申请号：US11212549
申请日：2005-08-27
IPC分类号： B23K31/02
CPC分类号： C04B37/023 , B23K20/233 , C04B35/645 , C04B2235/6581 , C04B2237/123 , C04B2237/343 , C04B2237/346 , C04B2237/348 , C04B2237/403 , C04B2237/52 , C04B2237/708
摘要： A method of bonding a ceramic part to a metal part by heating a component assembly including the metal part, the ceramic part, and a thin essentially pure interlayer material placed between the two parts heated at a temperature that is greater than the temperature of the eutectic formed between the metal part and the interlayer material, but that is less than the melting point of the interlayer material, the ceramic part or the metal part is disclosed. The component assembly is held in intimate contact at temperature in a non-reactive atmosphere for a sufficient time to develop a hermetic and strong bond between the ceramic part and the metal part. The bonded assembly is optionally treated with acid to remove any residual free nickel and nickel salts to assure a biocompatible assembly for implantation in living tissue.
摘要翻译： 通过加热包括金属部件，陶瓷部件和薄的基本上纯的中间层材料的部件组合件将陶瓷部件粘合到金属部件上的方法，该中间层材料放置在两个部件之间，该部件在比共晶体的温度高 形成在金属部分和中间层材料之间，但是小于中间层材料的熔点，公开了陶瓷部件或金属部件。 组件组件在非反应性气氛中的温度下保持紧密接触足够的时间以在陶瓷部件和金属部件之间形成气密和牢固的结合。 粘合组件任选地用酸处理以除去任何残留的游离镍和镍盐，以确保用于植入生物组织的生物相容性组件。
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公开(公告)号：US08140162B1
公开(公告)日：2012-03-20
申请号：US12390782
申请日：2009-02-23
IPC分类号： A61N1/375
CPC分类号： C04B35/6455 , A61N1/37205 , C04B35/486 , C04B2235/3225 , C04B2235/658 , C04B2235/77 , C04B2235/785 , C04B2235/94
摘要： The invention is directed to an apparatus substantially eliminating destructive low-temperature, humidity-enhanced phase transformation of yttria-stabilized zirconia in general, as well as eliminating low-temperature degradation of yttria-stabilized tetragonal zirconia polycrystalline ceramic (Y-TZP). The martensitic-type phase transformation from tetragonal to monoclinic is accompanied by severe strength degradation in a moist environment at low-temperature, specifically at room temperature as well as at body temperature. This class of materials has been chosen as the packaging material for small implantable neural-muscular sensors and stimulators because of the high fracture toughness and high mechanical strength. This destructive phase transformation has been substantially eliminated, thus ensuring the safety of long-term implants, by subjecting the sintered components to post-machining hot isostatic pressing, such that the average grain size is less than about 0.5 microns.
摘要翻译： 本发明涉及一种基本上消除氧化钇稳定化氧化锆的破坏性低温，增湿相变的装置，以及消除氧化钇稳定的四方晶氧化锆多晶陶瓷（Y-TZP）的低温退化。 在低温下，特别是在室温以及在体温下，在潮湿的环境中伴随着从四方晶向单斜晶的马氏体相转变。 由于高断裂韧性和高机械强度，这类材料已经被选为小型可植入神经 - 肌肉传感器和刺激器的包装材料。 已经基本上消除了这种破坏性相变，从而通过对烧结组件进行后加热等静压来确保长期植入物的安全性，使得平均晶粒尺寸小于约0.5微米。
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公开(公告)号：US08055336B1
公开(公告)日：2011-11-08
申请号：US11871776
申请日：2007-10-12
申请人： Joseph H. Schulman , Yitzhak Zilberman , Kate E. Purnell , Martin J. Vogel , Adam Vogel, legal representative
IPC分类号： A61N1/05
CPC分类号： A61N1/0551 , A61B5/6882 , A61N1/36003 , A61N1/372 , A61N1/37205 , A61N2001/0578
摘要： A method of removing an implantable electronic microdevice by an integral removal loop or circumferential ring to facilitate removal of the implanted microdevice without additional surgery. The device is removed by pulling it along the surgically created implantation path. Optionally a radio-opaque tether provides a method of locating the implantable microdevice without additional surgery and attachment of one end of the tether to a radio-opaque marker provides a method of locating the end of the tether to facilitate removal of the implantable microdevice from living tissue.
摘要翻译： 一种通过整体移除环或周向环移除可植入电子微型装置的方法，以便于无需另外手术即可移除植入的微型装置。 通过沿着手术产生的植入路径拉动装置来移除该装置。 可选地，不透射线的系绳提供了一种定位可植入微型装置的方法，而无需额外的手术，并且将系绳的一端附接到不透射线的标记物提供了一种定位系绳端部以便于移除可植入微型装置从生活的方法 组织。
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7.发明申请公开(公告)号：US20090105843A1
公开(公告)日：2009-04-23
申请号：US11990483
申请日：2006-08-11
申请人： Kate E. Purnell
发明人： Kate E. Purnell
CPC分类号： B23K20/02 , A61L27/06 , A61L27/50 , B23K1/19 , B23K20/16 , B23K20/233 , B23K2103/14
摘要： A method for metallurigically bonding a metal wire mesh to a metal substrate which allows the use of a fragile open weave mesh and/or a thin wall substrate. A thin nickel based layer is placed between a titanium based substrate and a titanium based wire mesh. The mesh and substrate are lightly clamped in intimate contact against the nickel interlayer therebetween, e.g., by wire wrapping. The sandwich, or assembly, (i.e., substrate, interlayer, mesh) is then heated to a temperature, below the melting point of titanium and nickel but sufficient to form a eutectic titanium-nickel alloy (e.g. , Ti2Ni).
摘要翻译： 一种用于将金属丝网金属结合到金属基底上的方法，其允许使用易碎的开口编织网和/或薄壁基底。 将薄镍基层置于钛基基体和钛基丝网之间。 网格和基底被轻轻夹紧，例如通过电线缠绕紧密接触其间的镍中间层。 然后将三明治或组合件（即基材，中间层，网）加热到低于钛和镍的熔点但足以形成共晶钛 - 镍合金（例如Ti 2 Ni）的温度。
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公开(公告)号：US07239921B2
公开(公告)日：2007-07-03
申请号：US10601723
申请日：2003-06-23
申请人： David L. Canfield , Kate E. Purnell
发明人： David L. Canfield , Kate E. Purnell
IPC分类号： A61N1/00
CPC分类号： A61N1/3787
摘要： A housing for an implantable medical device in the shape of a hollow magnetic field concentrating tube about which an electrically conductive wire coil is wound and within which medical device electronics is housed. The tube, preferably made of ferrite, is encased in a protective sleeve formed of a material that is impervious to body fluids. The coil provides an electrical output as a result of being exposed to a varying magnetic field that is concentrated around the coil by virtue of the field concentrating tube. The output of the coil is utilized as part of a power supply for the medical device electronics. The sleeve has a generally cylindrical cross-section having an outside diameter of about 3.175 mm and an axial length in the range of about 3.2 mm to 8 mm.
摘要翻译： 一种用于可中空磁场集中管形状的可植入医疗装置的壳体，绕其围绕导电线圈并且其中容纳医疗装置电子装置。 优选由铁素体制成的管被包裹在由不渗透体液的材料形成的保护套中。 线圈由于通过场集中管暴露于集中在线圈周围的变化的磁场而提供电输出。 线圈的输出被用作医疗设备电子设备的电源的一部分。 套筒具有大致圆柱形的横截面，其外径约为3.175mm，轴向长度在约3.2mm至8mm的范围内。
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