专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060222533A1 Portable blood pumping system 审中-公开
标题翻译：便携式抽血系统
公开(公告)号：US20060222533A1
公开(公告)日：2006-10-05
申请号：US11096442
申请日：2005-04-01
申请人： Andrew Reeves , David Dudzinski , Fernando Casas , William Smith
发明人： Andrew Reeves , David Dudzinski , Fernando Casas , William Smith
IPC分类号： F04B17/00
CPC分类号： F04D13/021 , A61M1/1006 , A61M1/101 , A61M1/1012 , A61M1/1013 , A61M1/1025 , A61M1/1036 , A61M1/1086 , A61M1/3653 , A61M1/3659 , A61M2205/3334
摘要： A pump (100) includes a pump housing (200) having a fluid inlet (114) and a fluid outlet (116). An impeller (252) is disposed within the pump housing (200) and is rotatable about an axis (156) to move fluid from the inlet (114) to the outlet (116). A flexible drive spring (270) connects the impeller to a rotating drive mechanism (312). The spring (270) transmits torque to the impeller (252) from the drive mechanism (312) and preloads the impeller against a surface (232) of the pump housing (200).
摘要翻译：泵（100）包括具有流体入口（114）和流体出口（116）的泵壳体（200）。叶轮（252）设置在泵壳体（200）内并且可绕轴线（156）旋转以将流体从入口（114）移动到出口（116）。柔性驱动弹簧（270）将叶轮连接到旋转驱动机构（312）。弹簧（270）将扭矩从驱动机构（312）传递到叶轮（252），并将叶轮预压在泵壳体（200）的表面（232）上。

2. 发明授权

US09511179B2 Flow estimation in a blood pump 有权
标题翻译：血泵流量估计
公开(公告)号：US09511179B2
公开(公告)日：2016-12-06
申请号：US13355297
申请日：2012-01-20
申请人： Fernando Casas , Carlos Reyes
发明人： Fernando Casas , Carlos Reyes
IPC分类号： A61M1/10 , A61M1/12
CPC分类号： A61M1/1086 , A61M1/101 , A61M1/1015 , A61M1/122 , A61M2205/3334
摘要： The flow rate of blood in an implantable blood pump is determined at least in part based on a parameter related to thrust on the rotor of the pump. The parameter may be a parameter related to displacement of the rotor along its axis, such as a function of the back electromotive force generated in one or more coils of the stator. The back electromotive force may be measured during open-phase periods of a particular coil or set of coils, during which no power is applied to the coil or set of coils by the motor drive circuit. The parameter related to thrust may be used in conjunction with the speed of rotation of the rotor, the magnitude of current supplied to the rotor, or both to determine the flow rate. The pump may be controlled responsive to the determined flow rate.
摘要翻译：至少部分地基于与泵的转子上的推力相关的参数确定可植入血液泵中的血液的流速。该参数可以是与转子沿其轴线的位移有关的参数，例如在定子的一个或多个线圈中产生的反电动势的函数。可以在特定线圈或一组线圈的开路阶段期间测量反电动势，在此期间电机驱动电路不向线圈或线圈组施加功率。与推力相关的参数可以与转子的旋转速度，提供给转子的电流的大小或两者一起使用以确定流量。可以响应于所确定的流速来控制泵。

3. 发明申请

US20140100413A1 SUCTION DETECTION ON AN AXIAL BLOOD PUMP USING BEMF DATA 有权
标题翻译：使用BEMF数据进行轴向血液泵的检测
公开(公告)号：US20140100413A1
公开(公告)日：2014-04-10
申请号：US13951302
申请日：2013-07-25
申请人： Fernando Casas , Carlos Reyes
发明人： Fernando Casas , Carlos Reyes
IPC分类号： A61M1/12
CPC分类号： A61M1/127 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/1086 , A61M1/122 , A61M2205/3334
摘要： The presence or absence of a suction condition in an implantable blood pump is determined at least in part based on a parameter related to flow, such as a parameter related to thrust on the rotor of the pump. A local extreme of the parameter representing the minimum flow during ventricular diastole in an earlier interval is used to establish a threshold value. A value of the parameter representing the minimum flow during ventricular diastole in a later interval is compared to this threshold. If the comparison indicates a substantial decline in the minimum flow between the earlier and later intervals is associated with a suction condition. During the absence of a suction condition, the threshold is continually updated, so that the system does not indicate presence of a suction condition if the flow decreases gradually.
摘要翻译：至少部分地基于与流动相关的参数（例如与泵的转子上的推力相关的参数）来确定可植入血液泵中是否存在吸入条件。使用表示在较早间隔期间心室舒张期期间的最小流量的参数的局部极值来建立阈值。将表示在稍后间隔中的心室舒张期期间的最小流量的参数的值与该阈值进行比较。如果比较表明较早和较晚间隔之间的最小流量的显着下降与抽吸条件相关联。在没有抽吸条件的情况下，阀值不断更新，如果流量逐渐减小，则系统不会指示吸入条件的存在。

4. 发明申请

US20120245681A1 FLOW ESTIMATION IN A BLOOD PUMP 有权
标题翻译：血液泵的流量估计
公开(公告)号：US20120245681A1
公开(公告)日：2012-09-27
申请号：US13355297
申请日：2012-01-20
申请人： Fernando Casas , Carlos Reyes
发明人： Fernando Casas , Carlos Reyes
IPC分类号： A61M1/10
CPC分类号： A61M1/1086 , A61M1/101 , A61M1/1015 , A61M1/122 , A61M2205/3334
摘要： The flow rate of blood in an implantable blood pump is determined at least in part based on a parameter related to thrust on the rotor of the pump. The parameter may be a parameter related to displacement of the rotor along its axis, such as a function of the back electromotive force generated in one or more coils of the stator. The back electromotive force may be measured during open-phase periods of a particular coil or set of coils, during which no power is applied to the coil or set of coils by the motor drive circuit. The parameter related to thrust may be used in conjunction with the speed of rotation of the rotor, the magnitude of current supplied to the rotor, or both to determine the flow rate. The pump may be controlled responsive to the determined flow rate.
摘要翻译：至少部分地基于与泵的转子上的推力相关的参数确定可植入血液泵中的血液的流速。该参数可以是与转子沿其轴线的位移有关的参数，例如在定子的一个或多个线圈中产生的反电动势的函数。可以在特定线圈或一组线圈的开路阶段期间测量反电动势，在此期间电机驱动电路不向线圈或线圈组施加功率。与推力相关的参数可以与转子的旋转速度，提供给转子的电流的大小或两者一起使用以确定流量。可以响应于所确定的流速来控制泵。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式