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公开(公告)号：US09211368B2
公开(公告)日：2015-12-15
申请号：US13784434
申请日：2013-03-04
Applicant: Richard Wampler
Inventor： Richard Wampler
CPC classification number: A61M1/1017 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/102 , A61M1/1022 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M1/125
Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.
Abstract translation: 一种心脏辅助装置，包括具有圆柱形孔的旋转泵壳体，泵送室和电动机定子，其包括位于壳体内且围绕圆柱形孔的一部分的导电线圈。 转子具有圆柱形轴，至少一个叶轮附加到轴的一端和位于轴内的多个磁体。 转子轴定位在壳体孔内，磁体与电动机定子相对，并且叶轮位于泵送室内。 壳体孔紧密地配合到轴的外表面，形成流体动力轴颈轴承，泵送室和轴颈轴承通过泵送室和轴颈轴承之间的血流泄漏路径连接。 电动机定子的背脊吸引转子磁体以抵抗在运行期间转子在壳体内的纵向位移。 流入，流出和泄漏流动路径的位置的相对取向可以在泵内变化，例如以适应用于植入和/或使用的不同的预期方法。
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公开(公告)号：US08409276B2
公开(公告)日：2013-04-02
申请号：US12324430
申请日：2008-11-26
Applicant: Richard Wampler
Inventor： Richard Wampler
IPC: A61M1/12
CPC classification number: A61M1/1017 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/102 , A61M1/1022 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M1/125
Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.
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公开(公告)号：US20080085184A1
公开(公告)日：2008-04-10
申请号：US11950342
申请日：2007-12-04
Applicant: Richard Wampler , David Lancisi
Inventor： Richard Wampler , David Lancisi
IPC: F04D29/18
CPC classification number: 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
Abstract: 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.
Abstract translation: 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：US20050084399A1
公开(公告)日：2005-04-21
申请号：US10937091
申请日：2004-09-09
Applicant: Richard Wampler , David Lancisi
Inventor： Richard Wampler , David Lancisi
CPC classification number: 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
Abstract: 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.
Abstract translation: 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：US20190160213A1
公开(公告)日：2019-05-30
申请号：US15826663
申请日：2017-11-29
Applicant: Richard Wampler
Inventor： Richard Wampler
Abstract: Systems methods are disclosed for changing one or more characteristics (e.g. flow magnitude via pump speed) of mechanical circulatory assistance provided by an LVAD during specified points in the cardiac cycle, preferably using closed loop control. The system and method may be implemented for dynamically changing ventricular unloading during the cardiac cycle by adjusting the degree of ventricular assistance during systole and/or diastole. The system and methods also include a means to sense the phase of the cardiac cycle to inform the LVAD of timing within the cardiac cycle.
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Patent Agency Ranking
公开(公告)号：US09173985B2
公开(公告)日：2015-11-03
申请号：US14083752
申请日：2013-11-19
Applicant: Richard Wampler
Inventor： Richard Wampler
CPC classification number: A61M1/1036 , A61M1/1008 , A61M1/101 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/1086 , A61M1/12 , A61M1/122 , A61M2205/3334
Abstract: A total artificial heart having a rotor with an impeller, wherein the rotor is mounted within a pump housing on a hollow shaft. The rotor is magnetically driven to produce rotary motion of the impeller for pumping blood. The motor is disposed within the pump housing such that axial translation within the housing acts as a shuttle valve to alternate flow between pulmonary and systemic circulation.
Abstract translation: 具有带叶轮的转子的总人造心脏，其中转子安装在泵壳体中的空心轴上。 转子被磁力驱动以产生用于泵送血液的叶轮的旋转运动。 电动机设置在泵壳体内，使得壳体内的轴向平移作为梭阀来交换肺和全身循环之间的流动。
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公开(公告)号：US20130303832A1
公开(公告)日：2013-11-14
申请号：US13864184
申请日：2013-04-16
Applicant: Richard Wampler
Inventor： Richard Wampler
IPC: A61M1/12
CPC classification number: A61M1/12 , A61M1/1008 , A61M1/101 , A61M1/1086 , A61M1/122 , A61M1/125 , A61M1/127 , A61M2205/33 , A61M2205/3303 , A61M2205/3334
Abstract: Systems and methods for delivering a miniaturized blood pump configured to draw partially desaturated blood via the femoral vein from the inferior or superior vena cava. A cannula connected to the pump exits the femoral vein and is connected to the femoral artery with a cannula or vascular graft. The pump receives power from a percutaneous lead which runs parallel to the flexible cannula and then exits via a percutaneous opening in the skin. The pump in the venous system removes venous blood and pumps it into the femoral artery. In so doing pressure in the aorta is increased and back pressure in the venous system is decreased.
Abstract translation: 用于递送小型血液泵的系统和方法，其构造成通过股静脉从下腔静脉或上腔静脉抽取部分去饱和血液。 连接到泵的插管离开股静脉并且用插管或血管移植物连接到股动脉。 泵从经皮引线接收电力，该导线平行于柔性套管延伸，然后通过皮肤中的经皮开口离开。 静脉系统中的泵将静脉血液排出并将其泵入股动脉。 在这样做主动脉压力增加和静脉系统的背压减少。
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公开(公告)号：US20130245361A1
公开(公告)日：2013-09-19
申请号：US13784434
申请日：2013-03-04
Applicant: Richard Wampler
Inventor： Richard Wampler
IPC: A61M1/10
CPC classification number: A61M1/1017 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/102 , A61M1/1022 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M1/125
Abstract: A heart assist device comprising a rotary pump housing having a cylindrical bore, a pumping chamber and a motor stator including an electrically conductive coil located within the housing and surrounding a portion of the cylindrical bore. A rotor has a cylindrical shaft, at least one impeller appended to one end of the shaft, and a plurality of magnets located within the shaft. The rotor shaft is positioned within the housing bore with the magnets opposite the motor stator, and the impeller is positioned within the pumping chamber. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing, with the pumping chamber and journal bearing connected by a leak path of blood flow between the pumping chamber and the journal bearing. A backiron of the motor stator attracts the rotor magnets to resist longitudinal displacement of the rotor within the housing during operation. The relative orientation of positions of the inflow, outflow, and leakage flow paths may be varied within the pump, such as to accommodate different intended methods for implantation and/or use.
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公开(公告)号：US20110118537A1
公开(公告)日：2011-05-19
申请号：US12939820
申请日：2010-11-04
Applicant: Richard Wampler
Inventor： Richard Wampler
IPC: A61M1/12
CPC classification number: A61M1/12 , A61M1/1008 , A61M1/101 , A61M1/1086 , A61M1/122 , A61M1/125 , A61M1/127 , A61M2205/33 , A61M2205/3303 , A61M2205/3334
Abstract: Systems and methods for delivering a miniaturized blood pump configured to draw partially desaturated blood via the femoral vein from the inferior or superior vena cava. A cannula connected to the pump exits the femoral vein and is connected to the femoral artery with a cannula or vascular graft. The pump receives power from a percutaneous lead which runs parallel to the flexible cannula and then exits via a percutaneous opening in the skin. The pump in the venous system removes venous blood and pumps it into the femoral artery. In so doing pressure in the aorta is increased and back pressure in the venous system is decreased.
Abstract translation: 用于递送小型血液泵的系统和方法，其构造成通过股静脉从下腔静脉或上腔静脉抽取部分去饱和血液。 连接到泵的插管离开股静脉并且用插管或血管移植物连接到股动脉。 泵从经皮引线接收电力，该导线平行于柔性套管延伸，然后通过皮肤中的经皮开口离开。 静脉系统中的泵将静脉血液排出并将其泵入股动脉。 在这样做主动脉压力增加和静脉系统的背压减少。
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公开(公告)号：US20140155998A1
公开(公告)日：2014-06-05
申请号：US14083752
申请日：2013-11-19
Applicant: Richard Wampler
Inventor： Richard Wampler
IPC: A61M1/10
CPC classification number: A61M1/1036 , A61M1/1008 , A61M1/101 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/1086 , A61M1/12 , A61M1/122 , A61M2205/3334
Abstract: A total artificial heart having a rotor with an impeller, wherein the rotor is mounted within a pump housing on a hollow shaft. The rotor is magnetically driven to produce rotary motion of the impeller for pumping blood. The motor is disposed within the pump housing such that axial translation within the housing acts as a shuttle valve to alternate flow between pulmonary and systemic circulation.
Abstract translation: 具有带叶轮的转子的总人造心脏，其中转子安装在泵壳体中的空心轴上。 转子被磁力驱动以产生用于泵送血液的叶轮的旋转运动。 电动机设置在泵壳体内，使得壳体内的轴向平移作为梭阀来交换肺和全身循环之间的流动。
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