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公开(公告)号：US08657875B2
公开(公告)日：2014-02-25
申请号：US11235691
申请日：2005-09-26
IPC分类号： A61M1/10
CPC分类号： A61M1/1086 , A61M1/101 , A61M1/12 , A61M1/122 , A61M2205/3331 , A61M2205/3334 , A61M2205/702
摘要： At least one aspect is directed to a totally artificial heart, and at least another aspect is directed to a method of controlling blood flow in a patient. The totally artificial heart may include a first rotary pump having an input to receive blood and an output to provide blood to a patient's lungs, a second rotary pump having an input to receive blood and an output to provide blood to the patient's body, a first sensor associated with the first rotary pump, a second sensor associated with the second rotary pump, and a control system coupled to the first sensor, the second sensor, the first rotary pump and the second rotary pump and configured to control characteristics of the first rotary pump and the second rotary pump based on signals received from at least one of the first sensor and the second sensor such that an average flow of blood through the second rotary pump is greater than an average flow of blood through the first rotary pump.
摘要翻译： 至少一个方面针对完全人造心脏，并且至少另一方面涉及一种控制患者血液流动的方法。 全人造心脏可以包括具有输入以接收血液的第一旋转泵和用于向患者的肺部提供血液的输出，具有用于接收血液的输入和用于向患者体内提供血液的输出的第二旋转泵，第一 与第一旋转泵相关联的传感器，与第二旋转泵相关联的第二传感器，以及耦合到第一传感器，第二传感器，第一旋转泵和第二旋转泵的控制系统，并且被配置为控制第一旋转泵的特性 泵和第二旋转泵，其基于从第一传感器和第二传感器中的至少一个接收的信号，使得通过第二旋转泵的血液的平均流量大于通过第一旋转泵的血液的平均流量。
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2.发明授权Transcutaneous energy transfer device with magnetic field protected components in secondary coil 有权具有磁场保护元件的次级线圈的经皮能量转移装置公开(公告)号：US06324431B1
公开(公告)日：2001-11-27
申请号：US09346833
申请日：1999-07-02
IPC分类号： A61N1375
CPC分类号： A61N1/3787
摘要： The invention provides a transcutaneous energy transfer device having an external primary coil and an implanted secondary coil inductively coupled to the primary coil, electronic components subcutaneously mounted within the secondary coil and a mechanism which reduces inductive heating of such components by the magnetic field of the secondary coil. For one embodiment of the invention, the mechanism for reducing inductive heating includes a cage formed of a high magnetic permeability material in which the electronic components are mounted, which cage guides the flux around the components to prevent heating thereof. For an alternative embodiment of the invention, a secondary coil has an outer winding and either a counter-wound inner winding or an inner winding in the magnetic field of the outer winding. For either arrangement of the inner coil, the inner coil generates a magnetic field substantially canceling the magnetic field of the outer coil in the area in which the electronic components are mounted.
摘要翻译： 本发明提供了一种经皮能量转移装置，其具有外部初级线圈和感应耦合到初级线圈的植入次级线圈，皮下安装在次级线圈内的电子部件和通过次级线圈的磁场减小这些部件的感应加热的机构 线圈 对于本发明的一个实施例，用于减小感应加热的机构包括由安装有电子部件的高导磁率材料形成的保持架，该笼围绕部件引导焊剂以防止其加热。 对于本发明的替代实施例，次级线圈具有在外绕组的磁场中的外绕组和反绕线内绕组或内绕组。 对于内部线圈的任一布置，内部线圈产生基本上抵消了安装电子部件的区域中的外部线圈的磁场的磁场。
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3.发明授权Transcutaneous energy transfer device with magnetic field protected components in secondary coil 有权具有磁场保护元件的次级线圈的经皮能量转移装置公开(公告)号：US06496733B2
公开(公告)日：2002-12-17
申请号：US09957330
申请日：2001-09-20
IPC分类号： A61N1375
CPC分类号： A61N1/3787
摘要： The invention provides a transcutaneous energy transfer device having an external primary coil and an implanted secondary coil inductively coupled to the primary coil, electronic components subcutaneously mounted within the secondary coil and a mechanism which reduces inductive heating of such components by the magnetic field of the secondary coil. For one embodiment of the invention, the mechanism for reducing inductive heating includes a cage formed of a high magnetic permeability material in which the electronic components are mounted, which cage guides the flux around the components to prevent heating thereof. For an alternative embodiment of the invention, a secondary coil has an outer winding and either a counter-wound inner winding or an inner winding in the magnetic field of the outer winding. For either arrangement of the inner coil, the inner coil generates a magnetic field substantially canceling the magnetic field of the outer coil in the area in which the electronic components are mounted.
摘要翻译： 本发明提供了一种经皮能量转移装置，其具有外部初级线圈和感应耦合到初级线圈的植入次级线圈，皮下安装在次级线圈内的电子部件和通过次级线圈的磁场减小这些部件的感应加热的机构 线圈 对于本发明的一个实施例，用于减小感应加热的机构包括由安装有电子部件的高导磁率材料形成的保持架，该笼围绕部件引导焊剂以防止其加热。 对于本发明的替代实施例，次级线圈具有在外绕组的磁场中的外绕组和反绕线内绕组或内绕组。 对于内部线圈的任一布置，内部线圈产生基本上抵消了安装电子部件的区域中的外部线圈的磁场的磁场。
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4.发明授权公开(公告)号：US06324430B1
公开(公告)日：2001-11-27
申请号：US09110608
申请日：1998-07-06
IPC分类号： H02J1700
CPC分类号： A61N1/3787 , H01F27/365 , H01F38/14
摘要： A transcutaneous energy transfer device is provided which has a magnetic shield covering the primary winding of the device to reduce sensitivity of the device to conducting objects in the vicinity of the coils and to increase the percentage of magnetic field generated by the primary coil which reaches the secondary coil. This shield is preferably larger than the primary coil in all dimensions and is either formed of a high permeability flexible material, for example a low loss magnetic material in a flexible polymer matrix, with perforations formed in the material sufficient to permit ventilation of the patient's skin situated under the shield, or the shield may be formed of segments of very high permeability material connected by a flexible, porous mesh material.
摘要翻译： 提供了一种经皮能量转移装置，其具有覆盖装置的初级绕组的磁屏蔽，以降低装置对线圈附近的物体的敏感性，并增加由初级线圈产生的磁场的百分比， 次级线圈 该屏蔽件优选地在所有尺寸上大于初级线圈，并且由柔性聚合物基体中的高磁导率柔性材料（例如低损耗磁性材料）形成，并且在该材料中形成足够允许患者皮肤通气的穿孔 位于屏蔽下方，或者屏蔽件可以由通过柔性多孔网状材料连接的非常高的渗透性材料的段形成。
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公开(公告)号：US20120010669A1
公开(公告)日：2012-01-12
申请号：US12834397
申请日：2010-07-12
申请人： Michael O'Neil , John R. Hawkins , Michael A. Fisher , Robert M. Hart , Henri Defossez , Richard Fessler , Robert D. Labrom , Hassan A. Serhan , Duncan Betts , Shawn D. Stad
发明人： Michael O'Neil , John R. Hawkins , Michael A. Fisher , Robert M. Hart , Henri Defossez , Richard Fessler , Robert D. Labrom , Hassan A. Serhan , Duncan Betts , Shawn D. Stad
IPC分类号： A61B17/86
CPC分类号： A61B17/7064 , A61B17/8038 , A61B17/8061 , A61B17/8605 , A61B17/8625 , A61B17/8695
摘要： Spinal implants and methods for spinal stabilization and/or fusion are provided. Exemplary implants described herein can be configured for delivery to a facet joint to stabilize and/or fuse the facet joint, and can optionally be anchored within the pedicle for added fixation. The implant can optionally include a fusion-promoting bioactive material thereby providing a single device capable of spinal stabilization and/or fusion. Furthermore, a method of placing such an implant within a facet joint is provided.
摘要翻译： 提供脊柱植入物和脊柱稳定和/或融合的方法。 本文描述的示例性植入物可以被配置为递送到小关节以稳定和/或融合小关节，并且可以可选地锚定在椎弓根内以用于附加固定。 植入物可任选地包括促进融合的生物活性材料，从而提供能够进行脊柱稳定和/或融合的单个装置。 此外，提供了将这种植入物放置在小关节内的方法。
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公开(公告)号：US6071093A
公开(公告)日：2000-06-06
申请号：US733981
申请日：1996-10-18
申请人： Robert M. Hart
发明人： Robert M. Hart
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1029 , F04D29/041 , F16C32/0495 , H02K5/1282 , H02K7/09 , H02K7/14 , F05B2240/511 , F05B2240/53 , H02K29/08
摘要： A magnetically operated blood pump includes a rotor with an impeller that rotates within a housing, and the housing fastens to a driver that preferably electromagnetically controls the speed and disposition of the impeller in response to sensed conditions. The impeller and housing constitute a disposable assembly in which permanent magnets embedded in the impeller stabilize its position to maintain pumping tolerances in at least one dimension, and also couple to external fields to rotate the impeller. In one embodiment concentric arrangements of cylinder magnets passively maintain radial centering, while coils in the driver are actuated to simultaneously produce a rotational torque and to correct axial or tilt displacements. In a preferred embodiment of this type, sensors around the periphery detect axial displacement and/or tilt as the impeller turns, while the drive circuit responds to the sensor signal to produce compensating phase changes in the coil drive signals. The drive coils are disposed in a common plane and are symmetrically spaced about the central axis, and the phase changes in their drive signals result in a compensating axial force, which may be different in each of the coils to correct tilt. In another or further embodiment, the rotor is freely suspended such that blood washes over one or more surfaces of the rotor, and fluid pressure produces a net restoring force on the rotor to counteract changes in tilt or axial position within the housing. In this case, the driver need only drive rotation of the pump. The drive unit works with a variety of multipole impeller pumps, including ones with magnetic segmented rotors and conventional mechanical support bearings such as ones with a jewel or shaft bearing element. In other embodiments, plural sets of magnets provide passive constraint of radial disturbances and two tilt movements, while axial disturbances are corrected either passively by hydrodynamic surfaces or actively with the driver. The driver unit may include a hand crank assembly, enabling continued operation during power outages.
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公开(公告)号：US5316665A
公开(公告)日：1994-05-31
申请号：US962138
申请日：1992-10-16
申请人： Robert M. Hart
发明人： Robert M. Hart
CPC分类号： B01D36/02 , B01D27/06 , B01D29/036 , Y10S210/17
摘要： The invention is a disk-shaped screen adapted for removable placement onto one end of a standard-type oil filter. When the screen is placed on the oil filter, it is located in an area bounded by the oil filter's mounting gasket and it overlies the filter's inlet ports. The screen is made of a wire mesh having approximately 1600 openings per square inch. The screen functions to collect larger-sized particles from the oil stream before they enter the interior of the oil filter. By collecting these particles in a readily viewable manner, the screen enables a person to easily determine from the types and size of collected particles if any unusual engine wear has occurred or if the engine has suffered internal damage.
摘要翻译： 本发明是适于可移动地放置在标准型油过滤器的一端上的盘形屏幕。 当屏幕放置在滤油器上时，它位于由滤油器安装垫圈限定的区域中，并且覆盖在过滤器的入口上。 屏幕由具有大约1600个开口/平方英寸的金属丝网制成。 屏幕用于在油流进入油过滤器内部之前从油流中收集更大尺寸的颗粒。 通过以容易观看的方式收集这些颗粒，如果发生任何不寻常的发动机磨损或者发动机已经受到内部损坏，则屏幕使得人们可以容易地根据收集的颗粒的类型和尺寸确定。
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