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公开(公告)号：US08118724B2
公开(公告)日：2012-02-21
申请号：US11950349
申请日：2007-12-04
IPC分类号： A61M1/10
CPC分类号： A61M1/1036 , A61M1/101 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
摘要： Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
摘要翻译： 为旋转泵提供了包括流体动力和磁性轴承的各种“非接触式”轴承机构，作为机械接触轴承的替代品。 在一个实施例中，泵装置包括限定泵送室的泵壳体。 壳体具有延伸到泵送室中的主轴。 主轴磁体组件包括设置在主轴内的第一和第二磁体。 第一和第二磁体彼此相邻布置，它们各自的磁矢量彼此相对。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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公开(公告)号：US20080310963A1
公开(公告)日：2008-12-18
申请号：US12197237
申请日：2008-08-23
IPC分类号： F03B3/12
CPC分类号： A61M1/1036 , A61M1/101 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
摘要： Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, the pump apparatus includes a rotor having a bore, a ring-shaped upper rotor bearing magnet, and a ring-shaped lower rotor bearing magnet. The bearing magnets are concentric with the bore. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
摘要翻译： 提供了用于旋转泵的各种“非接触”轴承机构，包括流体动力学，静液压和磁性轴承，作为机械接触轴承的替代品。 这些设计特征可以组合。 在一个实施例中，泵装置包括具有孔的转子，环形上转子轴承磁体和环形下转子轴承磁体。 轴承磁体与孔同心。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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公开(公告)号：US06264635B1
公开(公告)日：2001-07-24
申请号：US09204795
申请日：1998-12-03
IPC分类号： A61M3700
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/12 , A61M1/122 , F04D29/041 , F05B2240/515 , F05B2240/52 , F16C32/044 , F16C2316/18 , F16C2360/44 , H02K7/09
摘要： An implantable rotary blood pump including a rotor mounted for rotation within a pump housing. The rotor has a shaft portion and an impeller carried by the shaft portion. A rotor motor is provided, with the motor including a plurality of permanent magnets carried by the impeller and motor stators on opposite sides of the impeller. The motor is operable to transmit torque and also to provide an axial magnetic force that acts as an axial bearing.
摘要翻译： 一种植入式旋转血泵，其包括安装成在泵壳体内旋转的转子。 转子具有轴部和由轴部承载的叶轮。 提供了一种转子电动机，电动机包括由叶轮和电动机定子在叶轮的相对侧上承载的多个永磁体。 电动机可操作地传递扭矩并且还提供用作轴向轴承的轴向磁力。
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4.发明授权Method and apparatus for controlling brushless DC motors in implantable medical devices 有权用于在可植入医疗设备中控制无刷直流电动机的方法和装置公开(公告)号：US07436145B2
公开(公告)日：2008-10-14
申请号：US11603933
申请日：2006-11-21
IPC分类号： G05B21/02
CPC分类号： H02P6/10 , H02P6/182 , H02P2209/07
摘要： Methods and apparatus for controlling a polyphase motor in implantable medical device applications are provided. In one embodiment, the polyphase motor is a brushless DC motor. The back emf of a selected phase of the motor is sampled while a drive voltage or the selected phase is substantially zero. Various embodiments utilize sinusoidal or trapezoidal drive voltages. The sampled back emf provides an error signal indicative of the positional error of the rotor. In one embodiment, the sampled back emf is normalized with respect to a commanded angular velocity of the rotor to provide an error signal proportional only to the positional error of the motor rotor. The error signal is provided as feedback to control a frequency of the drive voltage. A speed control generates a speed control signal corresponding to a difference between a commanded angular velocity and an angular velocity inferred from the frequency of the drive voltage. The speed control signal is provided as feedback to control an amplitude of the drive voltage. In one embodiment, an apparatus includes a brushless DC motor and a commutation control. The commutation control provides a commutation control signal for a selected phase of the motor in accordance with a sampled back electromotive force (emf) of that phase. The back emf of the phase is sampled only while the corresponding drive voltage for the selected phase is substantially zero, wherein a frequency of a drive voltage of the motor is varied in accordance with the commutation control signal.
摘要翻译： 提供了用于在可植入医疗设备应用中控制多相电动机的方法和装置。 在一个实施例中，多相电动机是无刷直流电动机。 当驱动电压或所选相位基本上为零时，对电动机的所选相位的后电动势进行采样。 各种实施例利用正弦或梯形驱动电压。 采样的反电动势提供表示转子位置误差的误差信号。 在一个实施例中，采样的反电动势相对于转子的指令角速度被归一化以提供与电动机转子的位置误差成比例的误差信号。 误差信号作为反馈提供，以控制驱动电压的频率。 速度控制产生对应于从驱动电压的频率推断的指令角速度和角速度之间的差的速度控制信号。 速度控制信号被提供作为反馈以控制驱动电压的幅度。 在一个实施例中，一种装置包括无刷DC电动机和换向控制。 换向控制根据该相的采样反电动势（emf）为电动机的所选相位提供换向控制信号。 相位的反电动势仅在所选相位的相应驱动电压基本为零时进行采样，其中电动机的驱动电压的频率根据换向控制信号而变化。
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公开(公告)号：US06592620B1
公开(公告)日：2003-07-15
申请号：US09559423
申请日：2000-04-27
IPC分类号： A61M110
CPC分类号： A61M1/1017 , A61M1/101 , A61M1/1015 , A61M1/1086 , A61M1/12 , A61M1/122 , A61M1/127 , A61M2205/18 , A61M2205/3523 , A61M2205/8243 , F04D13/0666 , F05B2240/51 , F05B2240/53
摘要： A power system for an implantable heart pump is provided. The system includes two batteries, a microprocessor controller, two motor drivers, a multiplexer, two stators and a TET coil. During normal operation, only one battery and one motor driver are in use at a time to drive both stators.
摘要翻译： 提供了一种用于植入式心脏泵的电力系统。 该系统包括两个电池，一个微处理器控制器，两个电动机驱动器，多路复用器，两个定子和一个TET线圈。 在正常操作中，一次只能使用一个电池和一个电机驱动器来驱动两个定子。
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6.发明授权公开(公告)号：US08579607B2
公开(公告)日：2013-11-12
申请号：US11950328
申请日：2007-12-04
IPC分类号： F04D29/048 , F04D29/047
CPC分类号： A61M1/1036 , A61M1/101 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
摘要： Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
摘要翻译： 为旋转泵提供了包括流体动力和磁性轴承的各种“非接触式”轴承机构，作为机械接触轴承的替代品。 在一个实施例中，泵装置包括限定泵送室的泵壳体。 壳体具有延伸到泵送室中的主轴。 主轴磁体组件包括设置在主轴内的第一和第二磁体。 第一和第二磁体彼此相邻布置，它们各自的磁矢量彼此相对。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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公开(公告)号：US20110051977A1
公开(公告)日：2011-03-03
申请号：US12550343
申请日：2009-08-28
IPC分类号： H04R1/10
摘要： An earpiece carrying a microphone and a transmitter is disclosed. The earpiece is adapted to position the microphone within a canal of an ear of a wearer.
摘要翻译： 公开了一种携带麦克风和发射机的耳机。 耳机适于将麦克风定位在佩戴者的耳朵的运河内。
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公开(公告)号：US20100135832A1
公开(公告)日：2010-06-03
申请号：US12699754
申请日：2010-02-03
IPC分类号： F04B17/00
CPC分类号： A61M1/1015 , A61M1/101 , A61M1/1013 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
摘要： Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, a pump housing has a spindle extending from a wall of the pump housing into a pumping chamber defined by the pump housing. The spindle has a stepped portion adjacent the wall. In one embodiment, the stepped portion is defined by a change in spindle diameter. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
摘要翻译： 提供了用于旋转泵的各种“非接触”轴承机构，包括流体动力学，静液压和磁性轴承，作为机械接触轴承的替代品。 这些设计特征可以组合。 在一个实施例中，泵壳体具有从泵壳体的壁延伸到由泵壳体限定的泵送室中的心轴。 主轴具有邻近壁的台阶部分。 在一个实施例中，阶梯部分由主轴直径的变化限定。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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公开(公告)号：US07682301B2
公开(公告)日：2010-03-23
申请号：US10937109
申请日：2004-09-09
IPC分类号： A61M1/10
CPC分类号： A61M1/1036 , A61M1/101 , A61M1/1013 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
摘要： Various “contactless” bearing mechanisms including hydrodynamic, hydrostatic, and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. These design features may be combined. In one embodiment, a pump housing has a spindle extending from a wall of the pump housing into a pumping chamber defined by the pump housing. The spindle has a stepped portion adjacent the wall. In one embodiment, the stepped portion is defined by a change in spindle diameter. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
摘要翻译： 提供了用于旋转泵的各种“非接触”轴承机构，包括流体动力学，静液压和磁性轴承，作为机械接触轴承的替代品。 这些设计特征可以组合。 在一个实施例中，泵壳体具有从泵壳体的壁延伸到由泵壳体限定的泵送室中的心轴。 主轴具有邻近壁的台阶部分。 在一个实施例中，阶梯部分由主轴直径的变化限定。 缺少机械接触轴承可以延长泵的运行寿命，减少对血液等工作流体的损坏。
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10.发明授权Method and apparatus for controlling brushless DC motors in implantable medical devices 有权用于在可植入医疗设备中控制无刷直流电动机的方法和装置公开(公告)号：US07138776B1
公开(公告)日：2006-11-21
申请号：US09349575
申请日：1999-07-08
CPC分类号： H02P6/10 , H02P6/182 , H02P2209/07
摘要： Methods and apparatus for controlling a polyphase motor in implantable medical device applications are provided. In one embodiment, the polyphase motor is a brushless DC motor. The back emf of a selected phase of the motor is sampled while a drive voltage of the selected phase is substantially zero. Various embodiments utilize sinusoidal or trapezoidal drive voltages. The sampled back emf provides an error signal indicative of the positional error of the rotor. In one embodiment, the sampled back emf is normalized with respect to a commanded angular velocity of the rotor to provide an error signal proportional only to the positional error of the motor rotor. The error signal is provided as feedback to control a frequency of the drive voltage. A speed control generates a speed control signal corresponding to a difference between a commanded angular velocity and an angular velocity inferred from the frequency of the drive voltage. The speed control signal is provided as feedback to control an amplitude of the drive voltage. In one embodiment, an apparatus includes a brushless DC motor and a commutation control. The commutation control provides a commutation control signal for a selected phase of the motor in accordance with a sampled back electromotive force (emf) of that phase. The back emf of the phase is sampled only while the corresponding drive voltage for the selected phase is substantially zero, wherein a frequency of a drive voltage of the motor is varied in accordance with the commutation control signal.
摘要翻译： 提供了用于在可植入医疗设备应用中控制多相电动机的方法和装置。 在一个实施例中，多相电动机是无刷直流电动机。 当所选相位的驱动电压基本上为零时，采样电动机的所选相位的反电动势。 各种实施例利用正弦或梯形驱动电压。 采样的反电动势提供表示转子位置误差的误差信号。 在一个实施例中，采样的反电动势相对于转子的指令角速度被归一化以提供与电动机转子的位置误差成比例的误差信号。 误差信号作为反馈提供，以控制驱动电压的频率。 速度控制产生对应于从驱动电压的频率推断的指令角速度和角速度之间的差的速度控制信号。 速度控制信号被提供作为反馈以控制驱动电压的幅度。 在一个实施例中，一种装置包括无刷DC电动机和换向控制。 换向控制根据该相的采样反电动势（emf）为电动机的所选相位提供换向控制信号。 相位的反电动势仅在所选相位的相应驱动电压基本为零时进行采样，其中电动机的驱动电压的频率根据换向控制信号而变化。
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