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1. 发明授权

US4981484A Modified elliptical artificial heart 失效
标题翻译：修饰椭圆形人造心脏
公开(公告)号：US4981484A
公开(公告)日：1991-01-01
申请号：US438810
申请日：1989-11-20
申请人： John W. Holfert , Don B. Olsen
发明人： John W. Holfert , Don B. Olsen
IPC分类号： A61M1/10 , A61M1/12
CPC分类号： A61M1/1037 , A61M1/1096 , A61M1/122 , A61M1/106
摘要： An artificial heart device for producing heart pumping action as part of a total artificial heart implant comprising a housing of elongate configuration enclosing a pumping volume of sufficient capacity to provide adequate blood flow within the living being. A deformable diaphragm structure is attached at its perimeter to an interior housing surface approximately at the largest perimeter of the pumping volume to form a deformable partition deviding the pumping volume into a blood chamber and a drive chamber. The diaphragm structure has a modified hemi-ellipsoidal configuration when fully extended, modification being represented by four sections of substantially equal quadrants formed by intersection of the diaphragm structure with two orthogonal planes oriented in parallel relationship with the vertical axis. The curvature of each medial section of each quadrant is reduced or flattened to form a medial section having a lower profile as compared to surrounding ellipsoidal curvature. This structure reduces occurrence of bi-axial folding and enhancing random folding activity within the diaphragm. Valve inlet and outlet means are coupled to the housing in communication with the blood flow chamber for attachment along with the circulatory system of a living being. Pumping means are provided for actuating alternating extension and collapse of the diaphragm structure with respect to the drive chamber to simulate pumping action of the natural heart.
摘要翻译：一种人造心脏装置，用于作为总人造心脏植入物的一部分产生心脏抽吸作用，其包括具有足够容量的泵送体积的细长结构的壳体，以在生命体内提供足够的血液流动。可变形隔膜结构在其周边附近连接到内部壳体表面，大致在泵送体积的最大周边处，以形成将泵送体积分离成血液室和驱动室的可变形分隔件。当完全延伸时，膜片结构具有改进的半椭圆形结构，其修改由基本上相等的象限的四个部分表示，所述四个部分通过光阑结构与垂直轴平行关系定向的两个正交平面的交点形成。每个象限的每个中间部分的曲率被减小或变平，以形成与周围椭圆曲率相比具有较低轮廓的中间部分。这种结构减少了双向折叠的发生，并增强了隔膜内的随机折叠活动。阀入口和出口装置连接到与血流室连通的壳体，用于与活体的循环系统一起附着。提供泵送装置用于致动隔膜结构相对于驱动室的交替延伸和塌缩，以模拟天然心脏的泵送作用。

2. 发明授权

US06394769B1 Pump having a magnetically suspended rotor with one active control axis 有权
标题翻译：泵具有具有一个主动控制轴的磁悬浮转子
公开(公告)号：US06394769B1
公开(公告)日：2002-05-28
申请号：US09602471
申请日：2000-06-23
申请人： Gill B. Bearnson , Pratap S. Khanwilkar , James W. Long , Jed C. Ludlow , Brad E. Paden , Chen Chen , Dave B. Paden , Don B. Olsen , James Antaki , Paul E. Allaire , Michael Baloh
发明人： Gill B. Bearnson , Pratap S. Khanwilkar , James W. Long , Jed C. Ludlow , Brad E. Paden , Chen Chen , Dave B. Paden , Don B. Olsen , James Antaki , Paul E. Allaire , Michael Baloh
IPC分类号： F04B1700
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/1086 , A61M1/12 , A61M1/122 , F04D13/0633 , F04D13/064 , F04D13/0646 , F05B2200/23 , F05B2240/515 , F16C32/0423 , F16C32/0476 , F16C2316/18 , F16C2360/44 , Y10S415/90
摘要： An inventive blood pump in accordance with this invention includes a housing that has inlet and outlet ports for receiving and discharging blood. A rotor is positioned in the housing's interior for pumping blood between the housing's inlet and outlet ports, with the rotor being capable of motion in three translational and three rotational axes. An assembly for magnetically suspending and rotating the rotor in a contact-free manner with respect to the housing includes only one electromagnetic bearing that actively controls motion of the rotor with respect to one axis selected from the rotor's three translational and three rotational axes, an electromagnetic motor that actively drives motion of the rotor with respect to one of its three rotational axes, and magnetic bearings for passively controlling motion of the rotor with respect to the remaining four of its translational and rotational axes. The inventive blood pump can also be incorporated into an artificial heart.
摘要翻译：根据本发明的创新血泵包括具有用于接收和排出血液的入口和出口的壳体。转子定位在壳体的内部，用于在壳体的入口和出口之间泵送血液，转子能够以三个平移和三个旋转轴线运动。用于相对于壳体以无接触方式磁性地悬挂和旋转转子的组件仅包括一个电磁轴承，其主动地控制转子相对于从转子的三个平移和三个旋转轴中选择的一个轴的运动，电磁主动驱动转子相对于其三个旋转轴中的一个运动的电机，以及用于被动地控制转子相对于其平移轴和旋转轴的剩余四个运动的磁轴承。本发明的血液泵还可以并入人造心脏。

3. 发明授权

US07462019B1 Implantable centrifugal blood pump with hybrid magnetic bearings 有权
标题翻译：具有混合磁轴承的植入式离心血泵
公开(公告)号：US07462019B1
公开(公告)日：2008-12-09
申请号：US09673922
申请日：1999-04-22
申请人： Paul E. Allarie , Gill B. Bearnson , Ron Flack , Pratap S. Khanwilkar , B. Ajit Kumar , James W. Long, Jr. , Don B. Olsen , Jeffrey Decker , Michael Baloh
发明人： Paul E. Allarie , Gill B. Bearnson , Ron Flack , Pratap S. Khanwilkar , B. Ajit Kumar , James W. Long, Jr. , Don B. Olsen , Jeffrey Decker , Michael Baloh
IPC分类号： F04B17/03 , A61M1/10
CPC分类号： A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1031 , A61M1/12 , A61M1/122 , F04D13/0666 , F04D29/048 , F05B2200/23 , F16C32/0448 , F16C2316/18 , F16C2360/44
摘要： A pump for pumping sensitive fluids, such as blood, having no mechanical contact between the impeller and any other structure. The pump comprises a pump housing, an impeller disposed within the pump housing, a magnetic bearing system for supporting and stabilizing the impeller in five degrees of freedom, and a conformally shaped magnetically linked motor for rotating the impeller. The magnetic bearing system and motor advantageously comprise electromagnets and permanent magnets for stability and control of the impeller, and to reduce size, weight, and pump power consumption. Permanent and electromagnets are disposed on the pump housing and permanent magnets are disposed on the impeller such that by controlling electric current through the electromagnets on the housing, the magnetically suspended impeller functions as the rotor, and the housing as the stator of a D.C. motor. The system advantageously allows for sensing of relative impeller position and dynamic properties without the need for additional sensors. The fluid inlet, pump impeller, housing, and other components are configured such that flow patterns are as smooth and laminar as possible to reduce damage to the fluid, and such that eddies, flow separation, and re-circulation are reduced. In various embodiments, the pump is suitable for short or long-term implantation as a ventricular assist device or as a complete replacement heart in a human patient.
摘要翻译：用于泵送诸如血液的敏感流体的泵，其在叶轮和任何其它结构之间没有机械接触。泵包括泵壳体，设置在泵壳体内的叶轮，用于以五个自由度支撑和稳定叶轮的磁轴承系统，以及用于旋转叶轮的共形形状的磁连接马达。磁轴承系统和电动机有利地包括用于叶轮的稳定和控制的电磁体和永磁体，并且减小尺寸，重量和泵的功率消耗。永久和电磁铁设置在泵壳体上，并且永久磁铁设置在叶轮上，使得通过控制通过壳体上的电磁体的电流，磁悬浮叶轮用作转子，并且壳体用作直流电动机的定子。该系统有利地允许感测相对叶轮位置和动态特性，而不需要额外的传感器。流体入口，泵叶轮，壳体和其它部件被构造成使得流动模式尽可能平滑和层流以减少对流体的损害，并且减小涡流，流动分离和再循环。在各种实施例中，泵适合于作为心室辅助装置的短期或长期植入或者作为人类患者中的完全置换心脏。

4. 发明授权

US5925043A Electrosurgical electrode with a conductive, non-stick coating 失效
标题翻译：电外科电极具有导电，不粘涂层
公开(公告)号：US5925043A
公开(公告)日：1999-07-20
申请号：US846268
申请日：1997-04-30
申请人： B. Ajit Kumar , Don B. Olsen
发明人： B. Ajit Kumar , Don B. Olsen
IPC分类号： A61B18/14 , A61B17/39
CPC分类号： A61B18/1402 , A61B2017/0088 , A61B2018/00107 , A61B2018/00119 , A61B2018/0013 , A61B2018/00142 , Y10T29/49117
摘要： An electrosurgical blade is provided having a ceramic coating which is conductive, flexible and provides a surface which inhibits the build up of charred tissue. These properties enable the electrosurgical blade to deliver controlled amounts of radio-frequency energy to tissue. The manufacturing process produces a coating of titanium nitride on a stainless steel blade which is amorphous, enabling the electrosurgical blade to bend with the blade in order to perform a wide variety of surgical procedures without damaging the coating. The electrosurgical blade can therefore be used to efficiently cut, coagulate, fulgurate and desiccate tissue. While the blade is primarily used in the monopolar mode, the present invention also encompasses at least two electrosurgical electrodes having the same ceramic coating as the electrosurgical blade, and used in the bipolar mode for coagulation. The coating can be applied on a variety of shapes of electrocautery instruments.
摘要翻译：提供电外科刀片，其具有导电，柔性并提供抑制烧焦组织积聚的表面的陶瓷涂层。这些性质使得电外科刀片能够将受控量的射频能量输送到组织。该制造工艺在不锈钢刀片上产生氮化钛涂层，其是无定形的，使得电外科刀片能够与刀片一起弯曲，以便执行各种各样的外科手术而不损坏涂层。因此，电外科刀片可用于有效地切割，凝结，凝结和干燥组织。虽然刀片主要用于单极模式，但是本发明还包括至少两个具有与电外科刀片相同的陶瓷涂层的电外科电极，并且用于双极模式用于凝固。涂层可以应用于各种形状的电烙术。

5. 发明授权

US07229258B2 Streamlined unobstructed one-pass axial-flow pump 失效
标题翻译：流线型无阻碍单向轴流泵
公开(公告)号：US07229258B2
公开(公告)日：2007-06-12
申请号：US10950176
申请日：2004-09-24
申请人： Houston G. Wood , Paul E. Allaire , Don B. Olsen , Steven W. Day , Xinwei Song , Alex Untaroiu , Amy Throckmorton
发明人： Houston G. Wood , Paul E. Allaire , Don B. Olsen , Steven W. Day , Xinwei Song , Alex Untaroiu , Amy Throckmorton
IPC分类号： F04B35/04 , A61M1/10
CPC分类号： F16C32/044 , F16C2316/18
摘要： A blood pump has an impeller rotatably disposed and magnetically suspended within a cavity of a stator by a plurality of magnetic bearings (passive permanent and active electromagnetic) having impeller magnets on the impeller and stator magnets or coils/poles on the stator. A motor includes impeller magnets on the impeller and coils/poles associated with the stator. A single, annular blood flow path extends axially through the cavity between the impeller and the stator, and between the impeller magnets on the impeller and the stator magnets or the coils/poles on the stator.
摘要翻译：血泵具有通过叶轮上的叶轮磁体和定子上的定子磁体或线圈/磁极上的多个磁性轴承（被动永磁和有源电磁）可旋转地设置并磁悬浮在定子的空腔内的叶轮。电动机包括叶轮上的叶轮磁体和与定子相关联的线圈/极。单个环形血流路径轴向延伸通过叶轮和定子之间的空腔，以及在叶轮上的叶轮磁体和定子磁体或定子上的线圈/极之间。

6. 发明授权

US5326344A Magnetically suspended and rotated rotor 失效
标题翻译：磁悬浮和转动转子
公开(公告)号：US5326344A
公开(公告)日：1994-07-05
申请号：US953409
申请日：1992-11-09
申请人： Gunter W. Bramm , Don B. Olsen
发明人： Gunter W. Bramm , Don B. Olsen
IPC分类号： A61M1/10 , F04D13/06 , F04D15/00 , F04D29/04 , F04D29/048 , F16C39/06 , H02K7/09 , A61N1/10 , A61N1/362 , B63H3/00 , F04B17/00
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1031 , F04D13/06 , F04D15/0066 , F16C39/063 , H02K7/09
摘要： The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a control position in which the impellor is in mechanical equilibrium under permanent magnet forces and static axial forces on the impellor to minimize energy consumption in the support of the impellor. The impellor is rotated magnetically and stator coils in the housing are supplied with electric currents having a frequency and amplitude adjusted in relation to blood pressure at the pump inlet to match the flow characteristics of the pump to physiological characteristics of the natural heart. A cavity is formed in the impellor to match the average specific gravity of the impellor and portions of the suspension and drive systems thereon to the specific gravity of blood to further minimize power consumption by the pump. A valve member can be formed on the impellor to mate with a restriction in the pump inlet for pumps used to assist the pumping action of the natural heart.
摘要翻译：血泵的推进器由叶轮和泵壳体上的永磁体支撑并由壳体上的电磁体稳定。控制电路向电磁铁提供电流，以将叶轮的轴向位置保持在控制位置，在该控制位置中，叶轮在永久磁力下处于机械平衡状态，并且在叶轮上具有静态轴向力，以最小化叶轮支撑件的能量消耗。驱动器被磁性旋转，壳体中的定子线圈被提供有相对于泵入口处的血压调整的频率和幅度的电流，以将泵的流动特性与自然心脏的生理特征相匹配。在叶轮中形成空腔以将叶轮的平均比重及其上的悬架和驱动系统的部分与血液的比重匹配，以进一步最小化泵的功率消耗。阀构件可以形成在叶轮上以与用于辅助自然心脏的泵送动作的泵的泵入口中的限制配合。

7. 发明授权

US5078741A Magnetically suspended and rotated rotor 失效
标题翻译：磁悬浮旋转转子
公开(公告)号：US5078741A
公开(公告)日：1992-01-07
申请号：US510313
申请日：1990-04-16
申请人： Gunter W. Bramm , Don B. Olsen
发明人： Gunter W. Bramm , Don B. Olsen
IPC分类号： A61M1/10 , F04D13/06 , F04D15/00 , F04D29/04 , F04D29/048 , F16C39/06 , H02K7/09
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1031 , F04D13/06 , F04D15/0066 , F16C32/0444 , H02K7/09
摘要： The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a control position in which the impellor is in mechanical equilibrium under permanent magnet forces and static axial forces on the impellor to minimize energy consumption in the support of the impellor. The impellor is rotated magnetically and stator coils in the housing are supplied with electric currents having a frequency and amplitude adjusted in relation to blood pressure at the pump inlet to match the flow characteristics of the pump to physiological characteristics of the natural heart. A cavity is formed in the impellor to match the average specific gravity of the impellor and portions of the suspension and drive systems thereon to the specific gravity of blood to further minimize power consumption by the pump. A valve member can be formed on the impellor to mate with a restriction in the pump inlet for pumps used to assist the pumping action of the natural heart.
摘要翻译：血泵的推进器由叶轮和泵壳体上的永磁体支撑并由壳体上的电磁体稳定。控制电路向电磁铁提供电流，以将叶轮的轴向位置保持在控制位置，在该控制位置中，叶轮在永久磁力下处于机械平衡状态，并且在叶轮上具有静态轴向力，以最小化叶轮支撑件的能量消耗。驱动器被磁性旋转，壳体中的定子线圈被提供有相对于泵入口处的血压调整的频率和幅度的电流，以将泵的流动特性与自然心脏的生理特征相匹配。在叶轮中形成空腔以将叶轮的平均比重及其上的悬架和驱动系统的部分与血液的比重匹配，以进一步最小化泵的功率消耗。阀构件可以形成在叶轮上以与用于辅助自然心脏的泵送动作的泵的泵入口中的限制配合。

8. 发明授权

US4688998A Magnetically suspended and rotated impellor pump apparatus and method 失效
标题翻译：磁悬浮和旋转叶轮泵装置及方法
公开(公告)号：US4688998A
公开(公告)日：1987-08-25
申请号：US926872
申请日：1986-11-04
申请人： Don B. Olsen , Gunter Bramm , Pavel Novak
发明人： Don B. Olsen , Gunter Bramm , Pavel Novak
IPC分类号： A61M1/10 , A61M1/12 , F04D1/00 , F04D5/00 , F04D13/02 , F04D29/04 , F04D29/048 , F04D29/18 , F04D29/22 , F16C39/06 , H02K7/09 , F04B17/00
CPC分类号： H02K7/09 , A61M1/101 , A61M1/1015 , A61M1/1018 , A61M1/1031 , F04D1/006 , F04D13/064 , F04D29/042 , F04D29/048 , F04D29/181 , F04D29/183 , F04D29/22 , F04D5/001 , F16C32/044 , A61M1/12 , F16C2316/18 , F16C2360/44 , Y10S415/90
摘要： A novel pump apparatus and method, the pump including a magnetically suspended and rotated impellor inside the pump housing. A novel sensor system detects the position of the impellor and thus provides the necessary information for operation of a suspension circuit for magnetically suspending the impellor. A valve member may be included as part of the impellor to prevent reverse flow in the event of impellor failure when used as a ventricular assist device.
摘要翻译：一种新颖的泵装置和方法，该泵包括在泵壳体内的磁悬浮和旋转的叶轮。一种新颖的传感器系统检测叶轮的位置，从而提供了用于磁悬浮叶轮悬挂电路操作的必要信息。作为叶轮的一部分，可以包括阀构件，以防止在用作心室辅助装置时在发生叶轮故障的情况下的逆流。

9. 发明申请

US20090039995A1 Permanent Magnet or Permanent Magnet Array having Uniform Flux Density 审中-公开
标题翻译：具有均匀通量密度的永磁体或永磁体阵列
公开(公告)号：US20090039995A1
公开(公告)日：2009-02-12
申请号：US12169435
申请日：2008-07-08
申请人： Ronald Kipp , Steven W. Day , Don B. Olsen
发明人： Ronald Kipp , Steven W. Day , Don B. Olsen
IPC分类号： H01F7/02 , H02K21/16
CPC分类号： H02K1/2713 , F16C32/0408 , H01F1/14708 , H01F1/14766 , H01F7/0236 , H01F41/0253
摘要： A permanent magnet device includes a polarized permanent annular magnet having two oppositely charged poles faces. A magnetically conductive faceplate is disposed on each of the opposite pole faces of the permanent magnet. Each faceplate is sized, shaped and oriented to equally distribute the flux lines emanating from the permanent magnet, and to increase or concentrate the density of the magnetic flux field of a permanent magnet or permanent magnet device.
摘要翻译：永磁体装置包括具有两个相对带电的极面的极化永久性环形磁体。磁性导电面板设置在永磁体的相对极面的每一个上。每个面板的尺寸，形状和取向以均匀分布从永磁体发出的磁通线，并且增加或集中永磁体或永磁体装置的磁通场的密度。

10. 发明授权

US5385581A Magnetically suspended and rotated rotor 失效
公开(公告)号：US5385581A
公开(公告)日：1995-01-31
申请号：US810006
申请日：1992-03-02
申请人： Gunter L. Bramm , Don B. Olsen
发明人： Gunter L. Bramm , Don B. Olsen
IPC分类号： A61M1/10 , F04D13/06 , F04D15/00 , F04D29/04 , F04D29/048 , F16C39/06 , H02K7/09 , A61N1/362 , F04B17/00
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1031 , F04D13/06 , F04D15/0066 , F16C32/0444 , H02K7/09
摘要： The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a control position in which the impellor is in mechanical equilibrium under permanent magnet forces and static axial forces on the impellor to minimize energy consumption in the support of the impellor. The impellor is rotated magnetically and stator coils in the housing are supplied with electric currents having a frequency and amplitude adjusted in relation to blood pressure at the pump inlet to match the flow characteristics of the pump to physiological characteristics of the natural heart. A cavity is formed in the impellor to match the average specific gravity of the impellor and portions of the suspension and drive systems thereon to the specific gravity of blood to further minimize power consumption by the pump. A valve member can be formed on the impellor to mate with a restriction in the pump inlet for pumps used to assist the pumping action of the natural heart.

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