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公开(公告)号：US06971391B1
公开(公告)日：2005-12-06
申请号：US10373377
申请日：2003-02-24
CPC分类号： B82Y25/00 , A61N1/16 , H01B11/10 , H01F1/0063 , H01F10/007 , H01F10/324 , Y10T428/24992 , Y10T428/25 , Y10T428/27 , Y10T428/2982
摘要： An assembly for protecting biological tissue from the effects of heating. The assembly contains a conductor in contact with the biological tissue and forming an electrical circuit comprising the biological tissue. The assembly contains a device for modifying the impedance of the electrical circuit such that, at a frequency of from about 10 megahertz to about 150 megahertz, such impedance is at least about 0.5 ohms per centimeter of length of said conductor. The assembly also contains a device for limiting the flow of current through the biological tissue such that, when the assembly is exposed to an alternating current electromagnetic field at a frequency of 64 megahertz and a magnetic field strength of 1.5 Tesla for 15 minutes, the temperature of the biological tissue does not exceed 42 degrees Celsius.
摘要翻译： 用于保护生物组织免受加热影响的组件。 组件包含与生物组织接触的导体并形成包括生物组织的电路。 组件包含用于修改电路的阻抗的装置，使得在约10兆赫兹至约150兆赫兹的频率处，这种阻抗为所述导体的每厘米长度至少约0.5欧姆。 组件还包含用于限制通过生物组织的电流的装置，使得当组件暴露于频率为64兆赫的交流电磁场和1.5特斯拉的磁场强度15分钟时，温度 的生物组织不超过42摄氏度。
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公开(公告)号：US06765144B1
公开(公告)日：2004-07-20
申请号：US10384288
申请日：2003-03-07
IPC分类号： H01B1106
CPC分类号： B82Y25/00 , A61N1/16 , H01B11/10 , H01B11/1083 , H01F1/0063 , H01F10/007 , H01F10/324
摘要： An assembly for shielding an implanted medical device from the effects of high-frequency radiation and for emitting magnetic resonance signals during magnetic resonance imaging. The assembly includes an implanted medical device and a magnetic shield comprised of nanomagnetic material disposed between the medical device and the high-frequency radiation. In one embodiment, the magnetic resonance signals are detected by a receiver, which is thus able to locate the implanted medical device within a biological organism.
摘要翻译： 一种用于屏蔽植入式医疗装置免受高频辐射影响并在磁共振成像期间发射磁共振信号的组件。 该组件包括植入医疗装置和由设置在医疗装置与高频辐射之间的纳米磁性材料构成的磁屏蔽。 在一个实施例中，磁共振信号由接收器检测，接收器因此能够将植入的医疗装置定位在生物体内。
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公开(公告)号：US07473843B2
公开(公告)日：2009-01-06
申请号：US11331928
申请日：2006-01-13
IPC分类号： H01B11/06
CPC分类号： G01R33/286 , A61K49/1818 , A61N1/16 , B82Y5/00 , B82Y25/00 , H01B11/10 , H01B11/1083 , H01F10/007 , H01F10/324
摘要： An assembly for shielding an implanted medical device from the effects of high-frequency radiation and for emitting magnetic resonance signals during magnetic resonance imaging. The assembly includes an implanted medical device and a magnetic shield comprised of nanomagnetic material disposed between the medical device and the high-frequency radiation. In one embodiment, the magnetic resonance signals are detected by a receiver, which is thus able to locate the implanted medical device within a biological organism.
摘要翻译： 一种用于屏蔽植入式医疗装置免受高频辐射影响并在磁共振成像期间发射磁共振信号的组件。 该组件包括植入医疗装置和由设置在医疗装置与高频辐射之间的纳米磁性材料构成的磁屏蔽。 在一个实施例中，磁共振信号由接收器检测，接收器因此能够将植入的医疗装置定位在生物体内。
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公开(公告)号：US07091412B2
公开(公告)日：2006-08-15
申请号：US10780045
申请日：2004-02-17
IPC分类号： H05K9/00
CPC分类号： A61M25/0045 , A61M25/005 , A61M2025/0004 , A61M2025/0039 , A61M2025/004 , A61N1/3718 , A61N1/375 , B82Y25/00 , H01F10/007
摘要： A shielded medical device implanted in a biological organism. The device has a magnetic shield, and the magnetic shield contains a layer of nanomagnetic material; such layer has a morphological density of at least 98 percent. The nanomagnetic material in such layer has a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5,000 Oersteds, a a relative magnetic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
摘要翻译： 植入生物体内的屏蔽医疗器械。 该器件具有磁屏蔽，磁屏蔽包含一层纳米磁性材料; 该层的形态密度至少为98％。 该层中的纳米磁性材料具有约1至约36,000高斯的饱和磁化强度，约0.01至约5,000奥斯特的矫顽力，约1至约500,000的相对导磁率，平均粒径较小 比约100纳米。
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公开(公告)号：US06980865B1
公开(公告)日：2005-12-27
申请号：US10313847
申请日：2002-12-07
CPC分类号： A61N1/16 , H01B7/1805 , H01F1/0063
摘要： An implantable device that contains a power source, a device for producing electrical signals, and a conductor assembly for communicating the electrical signals to biological matter. The conductor assembly contains of a conductor that is capable of being flexed at least about 15 degrees and that has a resistivity at 20 degrees Centigrade of from about 1 to about 100 micro ohm-centimeters. The conductor assembly also contains a magnetic shield located above the flexible conductor; the magnetic shield contains an antithrombogenic composition. The magnetic shield also contains a magnetic shielding material that has a magnetic shielding factor of at least about 0.5.
摘要翻译： 一种包含电源的可植入装置，用于产生电信号的装置，以及用于将电信号传送到生物物质的导体组件。 导体组件包括能够弯曲至少约15度并且具有约1至约100微欧厘米的20摄氏度的电阻率的导体。 导体组件还包含位于柔性导体上方的磁屏蔽; 磁屏蔽包含抗血栓形成组合物。 磁屏蔽还包含具有至少约0.5的磁屏蔽因子的磁屏蔽材料。
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公开(公告)号：US07162302B2
公开(公告)日：2007-01-09
申请号：US10786198
申请日：2004-02-25
IPC分类号： A61N1/00
CPC分类号： A61F2/90 , A61F2210/0076 , A61F2210/009 , A61L29/10 , A61L29/14 , A61L31/082 , A61L31/14 , A61N1/16 , B82Y25/00 , H01F10/007 , Y10S977/931
摘要： A shielded medical device implanted in a biological organism. The device has a magnetic shield, and the magnetic shield contains a layer of nanomagnetic material; such layer has a morphological density of at least 98 percent; and it is bonded to the medical device by means of an interlayer with a thickness of less than about 10 microns. The nanomagnetic material in such layer has a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5,000 Oersteds, a relative magnetic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
摘要翻译： 植入生物体内的屏蔽医疗器械。 该器件具有磁屏蔽，磁屏蔽包含一层纳米磁性材料; 该层的形态密度至少为98％; 并且通过厚度小于约10微米的中间层将其粘合到医疗装置上。 该层中的纳米磁性材料具有约1至约36,000高斯的饱和磁化强度，约0.01至约5,000奥斯特的矫顽力，约1至约500,000的相对磁导率和较小的平均粒径 比约100纳米。
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公开(公告)号：US06673999B1
公开(公告)日：2004-01-06
申请号：US10260247
申请日：2002-09-30
IPC分类号： H01B1106
CPC分类号： B82Y25/00 , A61N1/086 , A61N1/3718 , H01B11/10 , H01B11/1083 , H01F1/0063 , H01F10/007 , H01F10/324
摘要： A sheath assembly with a magnetic shielding factor of at least about 0.9 that contains a sheath. The sheath includes nanomagnetic material, The nanomagnetic material has a mass density of at least about 0.01 grams per cubic centimeter, a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5,000 Oersteds, a relative magnetic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
摘要翻译： 具有至少约0.9的磁屏蔽系数的护套组件，其包含护套。 护套包括纳米磁性材料。纳米磁性材料具有至少约0.01克/立方厘米的质量密度，约1至约36,000高斯的饱和磁化强度，约0.01至约5,000奥斯特的矫顽力，相对磁性 渗透率为约1至约500,000，平均粒径小于约100纳米。
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公开(公告)号：US06930242B1
公开(公告)日：2005-08-16
申请号：US10090553
申请日：2002-03-04
申请人： Jeffrey L. Helfer , Xingwu Wang
发明人： Jeffrey L. Helfer , Xingwu Wang
CPC分类号： B82Y25/00 , A61N1/086 , A61N1/3718 , H01B11/10 , H01B11/1083 , H01F1/0063 , H01F10/007 , H01F10/324
摘要： A conductor assembly that contains a flexible conductor and a layer of nanomagnetic material coated onto the conductor. The layer of nanomagnetic material has a tensile modulus of elasticity of at least about 15×106 pounds per square inch, an average particle size of less than 100 nanometers, a saturation magnetization of from about 200 to about 26,000 Gauss, and a thickness of less than about 2 microns.
摘要翻译： 导体组件，其包含柔性导体和涂覆在导体上的纳米磁性材料层。 纳米磁性材料层具有至少约15×10 6磅/平方英寸的拉伸弹性模量，小于100纳米的平均粒度，约200至约26,000高斯的饱和磁化强度 ，并且厚度小于约2微米。
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公开(公告)号：US06844492B1
公开(公告)日：2005-01-18
申请号：US10242969
申请日：2002-09-13
申请人： Xingwu Wang , Jeffrey L. Helfer
发明人： Xingwu Wang , Jeffrey L. Helfer
CPC分类号： H01F1/0063 , A61N1/086 , A61N1/3718 , B82Y25/00 , H01B7/048 , H01B11/1083 , H01F10/007 , H01F10/324
摘要： A magnetically shielded conductor assembly with a conductor device and a film of nanomagnetic material located above the conductor device. The conductor device has a resistivity of from about 1 to about 2,000 micro ohm-centimeters. The film of nanomagnetic material has a thickness of from about 100 nanometers to about 10 micrometers and a magnetic shielding factor of at least about 0.5. The nanomagnetic material has a mass density of at least about 0.01 grams per cubic centimeter, a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5,000 Oersteds, a relative magnetic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
摘要翻译： 具有导体器件的磁屏蔽导体组件和位于导体器件上方的纳米磁性材料膜。 该导体器件具有约1至约2,000微欧厘米的电阻率。 纳米磁性材料的膜的厚度为约100纳米至约10微米，磁屏蔽系数为至少约0.5。 纳米磁性材料的质量密度为至少约0.01克/立方厘米，饱和磁化强度为约1至约36,000高斯，矫顽力为约0.01至约5,000奥斯特，相对磁导率为约1至 约500,000，平均粒径小于约100纳米。
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公开(公告)号：US06713671B1
公开(公告)日：2004-03-30
申请号：US10303264
申请日：2002-11-25
IPC分类号： H05K900
CPC分类号： B82Y25/00 , A61N1/16 , H01B11/10 , H01B11/1083 , H01F1/0063 , H01F10/007 , H01F10/324 , Y10T428/24983 , Y10T428/24992
摘要： A shielded assembly containing a substrate and a shield. The shield contains both nanomagnetic material and a material with an electrical resistivity of from about 1 microohm-centimeter to about 1×1025 microohm centimeters. The nanomagnetic material has a mass density of at least about 0.01 grams per cubic centimeter, a saturation magnetization of from about 1 to about 36,000 Gauss, a coercive force of from about 0.01 to about 5000 Oersteds, a relative magnctic permeability of from about 1 to about 500,000, and an average particle size of less than about 100 nanometers.
摘要翻译： 包含基板和屏蔽的屏蔽组件。 屏蔽包含纳米磁性材料和电阻率为约1微欧姆至约1×10 25微欧姆厘米的材料。 纳米磁性材料的质量密度为至少约0.01克/立方厘米，饱和磁化强度为约1至约36,000高斯，矫顽力为约0.01至约5000奥斯特，相对磁通量为约1至 约500,000，平均粒径小于约100纳米。
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