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1. 发明授权

US6142752A Centrifugal fluid pump assembly 有权
标题翻译：离心流体泵组件
公开(公告)号：US6142752A
公开(公告)日：2000-11-07
申请号：US149480
申请日：1998-09-08
申请人： Teruaki Akamatsu , Toshihiko Nojiri , Takayoshi Ozaki , Minoru Suzuki
发明人： Teruaki Akamatsu , Toshihiko Nojiri , Takayoshi Ozaki , Minoru Suzuki
IPC分类号： A61M1/10 , F04B49/00 , F04D15/00 , F04B17/00
CPC分类号： F04D15/0066 , A61M1/101 , A61M1/1036
摘要： A centrifugal fluid pump assembly has a pump body and a controller. The pump body has a housing, a pump section having an impeller rotating inside the housing, an impeller rotational torque generating section having a motor for rotating the impeller and an impeller position control section. The impeller rotates without contacting the housing. The controller has an impeller-floating position control function for changing the floating position of the impeller inside the housing by using the impeller position control section, a function of measuring electric current for driving the motor and a fluid viscosity calculation function for calculating a viscosity of fluid by utilizing a variation amount of the motor-driving electric current obtained by changing the floating position of the impeller.
摘要翻译：离心流体泵组件具有泵体和控制器。泵体具有壳体，具有在壳体内旋转的叶轮的泵部，具有用于使叶轮旋转的马达和叶轮位置控制部的叶轮旋转转矩产生部。叶轮旋转而不接触壳体。控制器具有叶轮浮动位置控制功能，用于通过使用叶轮位置控制部分来改变壳体内的叶轮的浮动位置，测量用于驱动马达的电流的功能和用于计算粘度的流体粘度计算功能通过利用通过改变叶轮的浮动位置获得的电动机驱动电流的变化量来控制流体。

2. 发明授权

US5947703A Centrifugal blood pump assembly 失效
标题翻译：离心血泵总成
公开(公告)号：US5947703A
公开(公告)日：1999-09-07
申请号：US791560
申请日：1997-01-31
申请人： Toshihiko Nojiri , Tsugito Nakazeki , Teruaki Akamatsu
发明人： Toshihiko Nojiri , Tsugito Nakazeki , Teruaki Akamatsu
IPC分类号： A61M1/10 , F04D13/02 , F04D29/04 , F04D29/047 , F04D29/048 , F04D29/62 , F04B17/00 , B63H1/00 , F01D25/00 , F03B13/00
CPC分类号： F04D29/047 , A61M1/101 , A61M1/1015 , A61M1/1036 , F04D13/026 , F04D13/027 , F04D13/0666 , F04D29/048 , F04D29/628 , F16C32/044 , F05B2240/515 , F16C2360/44 , Y10S415/90
摘要： A centrifugal blood pump assembly according to one aspect of the invention includes a housing, an impeller adapted to rotate within the housing for feeding blood, an impeller position control device, and an impeller rotation torque generating device. The impeller rotates without contacting the inner surface of the housing when the position control device and torque generating device are operative. Even when the position control device is inoperative, operation of the torque generating device enables rotation of the impeller while a blood flowpath is defined between the surface of the impeller facing the torque generating device and the inner surface of the housing. A centrifugal blood pump assembly according to another aspect of the invention involves a pump including a housing having blood inlet and outlet ports and an impeller adapted to rotate within the housing for feeding blood. The assembly also includes an uncontrolled magnetic bearing arrangement for the impeller, and controlled magnetic bearing arrangement for the impeller. The bearing arrangements are removably mounted to the pump.
摘要翻译：根据本发明的一个方面的离心式血液泵组件包括壳体，适于在壳体内旋转以供给血液的叶轮，叶轮位置控制装置和叶轮旋转扭矩产生装置。当位置控制装置和扭矩产生装置可操作时，叶轮旋转而不接触壳体的内表面。即使当位置控制装置不起作用时，扭矩产生装置的操作也能够在叶轮面向扭矩产生装置的表面与壳体的内表面之间限定血液流路的同时旋转叶轮。根据本发明的另一方面的离心式血液泵组件涉及一种泵，其包括具有血液入口和出口端口的壳体，以及适于在壳体内旋转以供给血液的叶轮。该组件还包括用于叶轮的不受控制的磁轴承装置和用于叶轮的受控磁轴承装置。轴承装置可拆卸地安装在泵上。

3. 发明授权

US6129660A Method of controlling blood pump 失效
标题翻译：血泵控制方法
公开(公告)号：US6129660A
公开(公告)日：2000-10-10
申请号：US13218
申请日：1998-01-26
申请人： Tsugito Nakazeki , Teruaki Akamatsu , Toshihiko Nojiri
发明人： Tsugito Nakazeki , Teruaki Akamatsu , Toshihiko Nojiri
IPC分类号： A61M1/10 , F04D13/06 , F16C39/06
CPC分类号： F16C32/044 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/1086 , F04D13/0633 , F16C2316/18 , F16C2360/44 , Y10S415/90
摘要： When a current is set, a PI control portion performs proportional integration control, a power amplifying circuit performs power amplification, whereby a current flowing through a motor is controlled to have a constant value. Further, the changes of the number of rotation is positively feedback and the changes are added to the set current by an adder. Further, blood viscosity is detected by a viscosity detecting circuit, an amount of correction is calculated by a correcting amount operating circuit so that it becomes equal to a reference value, and the calculated correcting amount is added to the adder.
摘要翻译：当设置电流时，PI控制部分执行比例积分控制，功率放大电路进行功率放大，从而将流过马达的电流控制为恒定值。此外，旋转数的变化是正反馈的，并且通过加法器将改变加到设定电流上。此外，通过粘度检测电路检测血液粘度，通过校正量操作电路计算校正量，使其变为等于参考值，并将计算出的校正量加到加法器。

4. 发明授权

US6015275A Magnetically suspended centrifugal pump apparatus with an automatic neutral position setting control 失效
标题翻译：磁悬浮离心泵设备，具有自动中立位置设定控制
公开(公告)号：US6015275A
公开(公告)日：2000-01-18
申请号：US991877
申请日：1997-12-16
申请人： Minoru Suzuki , Toshihiko Nojiri
发明人： Minoru Suzuki , Toshihiko Nojiri
IPC分类号： F04D13/02 , A61M1/10 , F04D29/04 , F04D29/048 , F16C39/06 , H02K7/09 , H02K7/11 , F04B17/00
CPC分类号： F04D29/048 , A61M1/101 , A61M1/1015 , A61M1/1031 , F16C32/0451 , F16C32/0455 , H02K7/11 , F05B2240/515 , F16C2316/18 , F16C2360/44 , H02K7/09
摘要： In order to enable speedy and simple exchanging operation of impeller and casing by eliminating setting operation, a sensor output when the impeller is not floating is measured by an automatic neutral position setting circuit at the activation of an electromagnet as an active magnetic bearing, the sensor output is compared with a predetermined set value and difference therebetween is calculated, which difference is used for adjusting the sensor output.
摘要翻译：为了通过消除设置操作来实现叶轮和壳体的快速和简单的更换操作，当叶轮不浮动时的传感器输出通过自动空档位置设置电路在作为主动磁轴承的电磁体的激活时被测量，传感器将输出与预定的设定值进行比较，并计算其间的差值，该差值用于调整传感器输出。

5. 发明授权

US5911558A Magnetically suspended pump having position sensing control 失效
标题翻译：具有位置检测控制的磁悬浮泵
公开(公告)号：US5911558A
公开(公告)日：1999-06-15
申请号：US848408
申请日：1997-05-08
申请人： Tsugito Nakazeki , Minoru Suzuki , Toshihiko Nojiri
发明人： Tsugito Nakazeki , Minoru Suzuki , Toshihiko Nojiri
IPC分类号： F04D15/00 , F04D13/02 , F04D29/04 , F04D29/048 , F16C39/06 , H02K7/09 , F01B25/26
CPC分类号： F04D29/048 , A61M1/1015 , F16C32/0444 , F16C32/0485 , F05B2240/51 , F16C2360/44 , Y10S415/90
摘要： Permanent magnets are buried on one side of an impeller, and a rotor having permanent magnets buried opposite thereto is provided to form a passive bearing. On the other side of the impeller, three electromagnet coils and three position sensors are circumferentially provided at equal distances to form an active bearing, the outputs of the three position sensors are operated to produce impeller displacements, which are fed back to drive the coils.
摘要翻译：永磁体被埋在叶轮的一侧，并且具有与其相对的永磁体的转子被设置以形成被动轴承。在叶轮的另一侧，三个电磁线圈和三个位置传感器以相等的距离圆周地设置以形成主动轴承，三个位置传感器的输出被操作以产生叶轮位移，其被反馈以驱动线圈。

6. 外观设计

USD372921S Centrifugal pump 失效
公开(公告)号：USD372921S
公开(公告)日：1996-08-20
申请号：US43930
申请日：1995-07-03
申请人： Tomonori Ijiri , Nobuhiko Amano , Toshihiko Nojiri
设计人： Tomonori Ijiri , Nobuhiko Amano , Toshihiko Nojiri

7. 发明授权

US6030188A Centrifugal blood pump assembly having magnetic material embedded in impeller vanes 失效
标题翻译：具有嵌入叶轮叶片的磁性材料的离心血泵组件
公开(公告)号：US6030188A
公开(公告)日：2000-02-29
申请号：US863600
申请日：1997-05-27
申请人： Toshihiko Nojiri , Tsugito Nakazeki
发明人： Toshihiko Nojiri , Tsugito Nakazeki
IPC分类号： A61M1/10 , F04D13/02 , F16C39/06 , F04B17/00
CPC分类号： F16C32/044 , A61M1/101 , A61M1/1036 , F04D13/027 , F04D29/24 , F16C2316/18 , F16C2360/44 , Y10S415/90
摘要： A centrifugal fluid pump assembly includes a housing having fluid inlet and outlet ports and an impeller having magnetic pieces disposed therein and accommodated for rotation in the housing for feeding the fluid, typically blood by a centrifugal force developed during rotation. A rotational torque generating mechanism including a rotor having magnets for attracting the magnetic pieces in the impeller and a motor for rotating the rotor serves to impart a rotational torque to the impeller in a non-contact relationship for thereby rotating the impeller. The impeller has vanes which define radially outwardly extending fluid passages therebetween. The magnetic pieces are embedded in the vanes.
摘要翻译：离心流体泵组件包括具有流体入口和出口端口的壳体和具有设置在其中的磁性片的叶轮，其容纳用于在壳体中旋转以用于通过在旋转期间产生的离心力来供给流体，通常为血液。包括具有用于吸引叶轮中的磁片的磁体的转子和用于使转子旋转的电动机的转子的转矩产生机构用于以非接触的关系向叶轮赋予旋转扭矩，从而使叶轮旋转。叶轮具有在其间限定径向向外延伸的流体通道的叶片。磁片嵌入叶片中。

8. 发明授权

US5798454A Magnetically suspended device with function of measuring viscosity 失效
标题翻译：具有测量粘度功能的磁悬浮装置
公开(公告)号：US5798454A
公开(公告)日：1998-08-25
申请号：US783911
申请日：1997-01-16
申请人： Tsugito Nakazeki , Toshihiko Nojiri
发明人： Tsugito Nakazeki , Toshihiko Nojiri
IPC分类号： G01N11/12 , A61M1/10 , A61M1/14 , F04D15/00 , G01N11/14
CPC分类号： A61M1/101 , G01N11/14
摘要： A rotor is magnetically suspended in liquid by a non-active magnetic bearing with opposed permanent magnets, a step shaped signal at constant voltage is generated from a signal generator, and supplied to an electromagnet of an active magnetic bearing, the response of the rotor at the time is detected by a position sensor, and viscosity equivalent to an damping coefficient is calculated by a CPU.
摘要翻译：转子通过具有相对永磁体的非活动磁轴承磁悬浮在液体中，从信号发生器产生恒定电压的阶梯形信号，并将其提供给主动磁轴承的电磁体，转子在时间由位置传感器检测，并且通过CPU计算与阻尼系数相当的粘度。

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