公开(公告)号：US11883639B2

公开(公告)日：2024-01-30

申请号：US17425972

申请日：2020-01-27

申请人： Fresenius Medical Care Deutschland GmbH

发明人： Simone Lippert

IPC分类号： F04C2/08 ,  F04C15/00 ,  F04C13/00 ,  F04C2/18 ,  A61M60/113 ,  A61M60/845 ,  A61M60/457 ,  A61M60/37 ,  A61M60/253 ,  F04C14/26 ,  F04C15/06

CPC分类号： A61M60/113 ,  A61M60/253 ,  A61M60/37 ,  A61M60/457 ,  A61M60/845 ,  F04C2/08 ,  F04C14/26 ,  F04C15/06 ,  F04C2210/1016 ,  F04C2240/30

摘要： The present invention relates to a gear pump having a housing that has an inflow for the liquid to be conveyed, that has an outflow for the conveyed liquid, and that has a pump chamber in which the gear or gears for conveying the liquid are present, with at least one bearing position being present in the housing, in which bearing position at least one gear is rotatably received, wherein the inflow is in a different plane than the outflow; and wherein at least one first flushing passage that extends up to the bearing position(s) is in direct or indirect fluid communication with the inflow and/or with the outflow.

公开(公告)号：US6080321A

公开(公告)日：2000-06-27

申请号：US923245

申请日：1997-09-04

申请人： Reiner Spickermann

发明人： Reiner Spickermann

IPC分类号： A61M1/14 ,  A61M1/16 ,  B01D61/30 ,  F04C13/00 ,  F04C14/00 ,  F04C14/08 ,  B01D61/32 ,  B01D65/00 ,  B01D65/06

CPC分类号： F04C14/00 ,  A61M1/1607 ,  A61M1/1656 ,  A61M1/169 ,  B01D61/30 ,  F04C13/001 ,  F04C14/08 ,  A61M1/1692 ,  A61M2205/702 ,  A61M2205/707 ,  F04C2210/10 ,  F04C2210/1016 ,  F04C2270/08 ,  F04C2270/10

摘要： A dialysis machine for the removal of toxic substances from biological fluids with agents for the decalcification of a dialysis liquid circulation is disclosed. The dialysis machine allows measurement of the degree of calcification of the dialysis liquid through the use of a blood leak detector or by measuring the dialysis machine pump flow or pump voltage. The invention also includes a process for automatically decalcifying the dialysis liquid circulation when a predetermined degree of calcification of the dialysis machine is measured.

摘要翻译： 公开了一种用于从生物流体中除去有毒物质的透析机与用于透析液体循环脱钙的试剂。 透析机允许通过使用血液泄漏检测器或通过测量透析机泵流量或泵电压来测量透析液的钙化程度。 本发明还包括当测量透析机的预定程度的钙化时自动脱钙透析液体循环的方法。

公开(公告)号：US20170189593A1

公开(公告)日：2017-07-06

申请号：US15308488

申请日：2015-07-09

申请人： RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE AACHEN

发明人： Johannes WAPPENSCHMIDT ,  Andreas GOETZENICH ,  Ruediger AUTSCHBACH ,  Ulrich STEINSEIFER

IPC分类号： A61M1/10 ,  F04C15/00 ,  F04C2/22

CPC分类号： A61M1/1081 ,  A61M1/1029 ,  A61M1/1036 ,  A61M1/1055 ,  F04C2/22 ,  F04C15/0069 ,  F04C15/008 ,  F04C2210/1016 ,  F04C2240/10

摘要： The invention relates to a rotary piston pump, in particular for pumping blood, comprising a piston rotor (1) which has particularly two or three faces when seen in cross-section, which is mounted in a piston chamber (2) and eccentrically rotates, the piston rotor (1) having in its interior a plurality of magnetically interacting elements (4, 4a, 4b), in particular permanent magnets and/or coils, and being driven by the magnetic interaction of these elements (4, 4a, 4b) with at least one moving magnetic field.

公开(公告)号：US4551073A

公开(公告)日：1985-11-05

申请号：US493693

申请日：1983-05-11

申请人： Walter Schwab

发明人： Walter Schwab

IPC分类号： A61M1/10 ,  F04C2/22 ,  F04C15/00 ,  F04B35/04

CPC分类号： A61M1/1081 ,  F04C15/0061 ,  F04C2/22 ,  F04C15/008 ,  F04C2210/1016

摘要： A rotary pump has a trochoidal member and a trochoidal rotary piston which preferably forms a gap seal with the trochoidal surface of the housing so that damage to blood cells and the like is avoided when the pump is used as an artificial heart or to assist circulation. The rotor is jounaled on an eccentric within a housing which may be the casing of an electric motor for driving the pump. The motor and its speed reducer, preferably planetary gearing, are disposed wholly within the rotor.

摘要翻译： 旋转泵具有摆线部件和摆线旋转活塞，优选地与壳体的摆线表面形成间隙密封，从而当泵用作人造心脏或辅助循环时，可以避免对血细胞等的损伤。 转子在壳体内的偏心轮上操纵，壳体可以是用于驱动泵的电动机的壳体。 电机及其减速器，优选地是行星齿轮传动装置，完全设置在转子内。

公开(公告)号：US4296500A

公开(公告)日：1981-10-27

申请号：US902364

申请日：1978-05-03

申请人： Jean R. Monties ,  Patrick J. C. Havlik

发明人： Jean R. Monties ,  Patrick J. C. Havlik

IPC分类号： A61M1/10 ,  F04C2/22 ,  A61F1/24 ,  A61M1/03

CPC分类号： A61M1/1081 ,  F04C2/22 ,  F04C2210/1016

摘要： The present invention relates to an artificial heart which comprises a rotary piston shaped like a trilobar or bilobar hypotrochoid or epitrochoid and a body which defines a cavity which is the rotor casing when the latter is driven both in circular translation of radius e equal to the eccentricity of the trochoid and in rotation about its center with an angular velocity of which the number of revolutions per minute is the same as the pulse of the patient.

摘要翻译： 本发明涉及一种人造心脏，其包括旋转活塞，其形状类似于三叶或双瓣假肢舟状体或外旋形体，以及主体，其限定空腔，当所述旋转活塞以等于偏心率的半径e的圆形平移 并且以其每分钟转数与患者脉搏相同的角速度绕其中心旋转。

公开(公告)号：US20240011485A1

公开(公告)日：2024-01-11

申请号：US18041656

申请日：2021-08-12

申请人： Arizona Board of Regents on Behalf of The University of Arizona ,  Vanderbilt University

发明人： Marvin J. Slepian ,  Eric J. Barth ,  Mengtang Li

IPC分类号： F04C2/344 ,  F01C21/08 ,  F04C18/344

CPC分类号： F04C2/3442 ,  F01C21/0809 ,  F04C18/3443 ,  F04C2210/1016

摘要： Described are pumps structured for moving fluids with pulsatile flow. The pumps lack valves and pistons and provide pulsatile flow through the gentle rotation of a single, one-piece, sliding vane. The vane is situated inside a slot of a rotary cylinder positioned in a hollow central opening of a housing. Generally, the vane makes minimal contact with the walls of the housing. A gap positioned between the vane and the walls and provides pulsatile fluid movement through the pump with low shear stress on the fluid. Also described are fluidic systems connected to the pumps and methods of operating the pumps and systems.

公开(公告)号：US08568113B2

公开(公告)日：2013-10-29

申请号：US12985715

申请日：2011-01-06

申请人： Thomas D. Pate ,  Raul G. Longoria ,  Richard Smalling ,  Jeffrey R. Gohean

发明人： Thomas D. Pate ,  Raul G. Longoria ,  Richard Smalling ,  Jeffrey R. Gohean

IPC分类号： F04B17/00 ,  F04B35/04

CPC分类号： F04B17/00 ,  A61M1/1005 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/1055 ,  A61M1/1081 ,  A61M1/1086 ,  A61M1/1087 ,  A61M2205/33 ,  A61M2205/3303 ,  A61M2205/3334 ,  A61N1/36514 ,  F04C13/001 ,  F04C2210/10 ,  F04C2210/1016

摘要： Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

摘要翻译： 包括用于控制泵送室中的一个或多个活塞的运动的马达或电磁体的系统和方法。 泵送室可以包括与泵送室流体连通的泵入口和泵出口。 活塞或泵送室上的表面可包括流体动力轴承表面。

公开(公告)号：US20110160788A1

公开(公告)日：2011-06-30

申请号：US12985715

申请日：2011-01-06

申请人： Thomas D. Pate ,  Raul G. Longoria ,  Richard Smalling ,  Jeffrey R. Gohean

发明人： Thomas D. Pate ,  Raul G. Longoria ,  Richard Smalling ,  Jeffrey R. Gohean

IPC分类号： A61N1/365 ,  A61M1/12 ,  F04B35/04 ,  F04B49/06

CPC分类号： F04B17/00 ,  A61M1/1005 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/1055 ,  A61M1/1081 ,  A61M1/1086 ,  A61M1/1087 ,  A61M2205/33 ,  A61M2205/3303 ,  A61M2205/3334 ,  A61N1/36514 ,  F04C13/001 ,  F04C2210/10 ,  F04C2210/1016

摘要： Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

摘要翻译： 包括用于控制泵送室中的一个或多个活塞的运动的马达或电磁体的系统和方法。 泵送室可以包括与泵送室流体连通的泵入口和泵出口。 活塞或泵送室上的表面可包括流体动力轴承表面。

公开(公告)号：US20080008609A1

公开(公告)日：2008-01-10

申请号：US11773740

申请日：2007-07-05

申请人： Thomas Pate ,  Raul Longoria ,  Richard Smalling ,  Jeffrey Gohean

发明人： Thomas Pate ,  Raul Longoria ,  Richard Smalling ,  Jeffrey Gohean

IPC分类号： F04B17/03

CPC分类号： F04B17/00 ,  A61M1/1005 ,  A61M1/101 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/1055 ,  A61M1/1081 ,  A61M1/1086 ,  A61M1/1087 ,  A61M2205/33 ,  A61M2205/3303 ,  A61M2205/3334 ,  A61N1/36514 ,  F04C13/001 ,  F04C2210/10 ,  F04C2210/1016

摘要： Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

摘要翻译： 包括用于控制泵送室中的一个或多个活塞的运动的马达或电磁体的系统和方法。 泵送室可以包括与泵送室流体连通的泵入口和泵出口。 活塞或泵送室上的表面可包括流体动力轴承表面。

公开(公告)号：US4594060A

公开(公告)日：1986-06-10

申请号：US734762

申请日：1985-05-15

申请人： Walter Schwab

发明人： Walter Schwab

IPC分类号： F04C2/22 ,  A61F2/22 ,  A61M1/12

CPC分类号： F04C2/22 ,  F04C2210/1016 ,  Y10S128/03

摘要： A rotary piston pump for the displacement of blood has a single-lobe trochoidal surface along the peripheral wall of a housing and an eccentrically displaced rotary piston having a pair of opposite edges confronting this surface. The edges confronting the surface are rounded of circular arc curvature with a radius less than the equidistant between the theoretical epitrochoid of the orbits of these edges and the surface. A gap seal is thus provided which prevents damage to blood vessels when the pump is used for the circulation of blood, e.g. in an artificial heart.

摘要翻译： 用于移动血液的旋转活塞泵具有沿着壳体的周壁的单瓣摆线状表面和具有与该表面相对的一对相对边缘的偏心位移的旋转活塞。 表面面对的边缘圆弧圆弧曲率，其半径小于这些边缘的轨道和表面的理论旋转体之间的等距离。 因此，提供了一种间隙密封，其防止当泵用于血液循环时对血管的损伤，例如， 在一个人造的心脏。