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公开(公告)号：US20240350794A1
公开(公告)日：2024-10-24
申请号：US18629264
申请日：2024-04-08
发明人： Ronan Keating , Sagi Raz , Diarmuid Conroy , Reed Williston , Kevin Bancud , Adrian McMahon , Eamon Brady
IPC分类号： A61M60/825 , A61M25/10 , A61M60/13 , A61M60/226 , A61M60/824 , F04D29/056
CPC分类号： A61M60/825 , A61M60/13 , A61M60/226 , A61M60/824 , F04D29/056 , A61M2025/1052
摘要： The present invention generally relates to the field of fluid management procedures for the treatment of fluid management disorders in a patient, and related components and methods. In particular, the present invention is directed to bearing arrangements used in intravascular blood pump assembly designed and configured to generate low bearing interfacial resistive force when operated in a blood or plasma protein containing environment.
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公开(公告)号：US12092114B2
公开(公告)日：2024-09-17
申请号：US17107457
申请日：2020-11-30
申请人： ABIOMED, Inc.
发明人： Thorsten Siess
IPC分类号： A61M60/422 , A61M60/165 , A61M60/237 , A61M60/822 , F04D13/06 , F04D29/048 , F04D29/18 , F04D29/40 , A61M60/135 , A61M60/148 , A61M60/82 , A61M60/824 , A61M60/831
CPC分类号： F04D13/06 , A61M60/165 , A61M60/237 , A61M60/422 , A61M60/822 , F04D29/048 , F04D29/18 , F04D29/406 , A61M60/135 , A61M60/148 , A61M60/82 , A61M60/824 , A61M60/831
摘要： Methods and systems are provided for the circulation of blood using a purge-free miniature pump. In one embodiment, a pump is provided that may comprise a housing including a rotor and a stator within a drive unit. In this embodiment, the pump may establish a primary blood flow through the space between the drive unit and the housing and a secondary blood flow between the rotor and stator. In another embodiment, a pump establishes a primary blood flow outside the housing and a secondary blood flow between the rotor and stator. In yet another embodiment, a method is provided for introducing the pump into the body and circulating blood using the pump.
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公开(公告)号：US20240293660A1
公开(公告)日：2024-09-05
申请号：US18602100
申请日：2024-03-12
申请人： Abiomed Europe GmbH
IPC分类号： A61M60/419 , A61M60/135 , A61M60/232 , A61M60/237 , A61M60/422 , A61M60/806 , A61M60/824 , A61M60/825 , A61M60/857
CPC分类号： A61M60/419 , A61M60/135 , A61M60/232 , A61M60/237 , A61M60/422 , A61M60/806 , A61M60/824 , A61M60/825 , A61M60/857
摘要： A blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing and rotatably supported in the pump casing by a bearing so as to be rotatable about an axis of rotation. The impeller has blades for conveying blood from the blood flow inlet to the blood flow outlet. The bearing comprises at least one stationary bearing portion coupled to the pump casing and having a stationary bearing surface that faces radially outwards. The bearing further comprises a rotating bearing surface interacting with the stationary bearing surface to form the bearing, wherein the rotating bearing surface faces radially inwards and is formed on an exposed radially inner edge of the blades. The blades are designed to draw blood deposit on the stationary bearing surface in a radially outward direction.
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公开(公告)号：US11964119B2
公开(公告)日：2024-04-23
申请号：US17178923
申请日：2021-02-18
申请人： TC1 LLC
IPC分类号： A61M25/06 , A61M25/00 , A61M25/01 , A61M60/13 , A61M60/216 , A61M60/411 , A61M60/824 , A61M60/867 , A61M25/09 , A61M39/06 , A61M60/148 , A61M60/414 , A61M60/422 , A61M60/818 , A61M60/829
CPC分类号： A61M25/0662 , A61M60/13 , A61M60/216 , A61M60/411 , A61M60/824 , A61M60/867 , A61M25/0068 , A61M25/0097 , A61M25/0108 , A61M25/0113 , A61M25/09041 , A61M39/06 , A61M60/148 , A61M60/414 , A61M60/422 , A61M60/818 , A61M60/829
摘要： A catheter pump includes a catheter body having at least one lumen therethrough, and comprising a distal end and a proximal end. An expandable impeller assembly includes an expandable impeller and an expandable cannula coupled to the distal end of the catheter body and housing the expandable impeller, the expandable cannula comprising a substantially straight segment having a distal inlet and a proximal outlet, the substantially straight segment configured to straddle an aortic valve. The catheter body comprises a proximal vessel contact zone and a distal vessel contact zone that are each proximal to the substantially straight segment, the proximal vessel contact zone and distal vessel contact zone configured to provide a force against an aortic arch to stabilize the expandable impeller assembly across the aortic valve.
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公开(公告)号：US11950889B2
公开(公告)日：2024-04-09
申请号：US16952444
申请日：2020-11-19
申请人： Magenta Medical Ltd.
发明人： Yosi Tuval , Zev Sohn , Ehud Schwammenthal , Gad Lubinsky
IPC分类号： A61B5/0215 , A61M60/135 , A61M60/148 , A61M60/237 , A61M60/414 , A61M60/419 , A61M60/422 , A61M60/531 , A61M60/554 , A61M60/818 , A61M60/824 , A61M60/829 , A61M60/833 , A61M60/857 , A61M60/896 , F04D3/02 , F04D7/00 , F04D15/00 , F04D25/02 , F04D29/041 , F04D29/042 , F04D29/18 , F04D29/24
CPC分类号： A61B5/0215 , A61M60/135 , A61M60/148 , A61M60/237 , A61M60/414 , A61M60/419 , A61M60/422 , A61M60/531 , A61M60/554 , A61M60/818 , A61M60/824 , A61M60/829 , A61M60/833 , A61M60/857 , A61M60/896 , F04D3/02 , F04D7/00 , F04D15/0066 , F04D25/02 , F04D29/041 , F04D29/042 , F04D29/181 , F04D29/247 , A61M2205/0266 , A61M2205/3317 , A61M2205/3327 , A61M2205/3334 , A61M2205/3344 , A61M2205/3365 , A61M2205/50 , A61M2230/04 , A61M2230/30
摘要： Apparatus and methods are described including a left ventricular assist device. The left ventricular assist device includes an impeller configured to be placed inside a subject's left ventricle, and to pump blood from the subject's left ventricle to the subject's aorta, by rotating. A frame is disposed around the impeller. A tube traverses the subject's aortic valve, such that a proximal portion of the tube is disposed within the subject's aorta and a distal portion of the tube is disposed within the subject's left ventricle. The distal portion of the tube defines one or more blood inlet openings that are configured to allow blood to flow from the subject's left ventricle into the tube. A braided element is configured to prevent inner structures of the left ventricle from passing into the one or more blood inlet openings. Other applications are also described.
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公开(公告)号：US20240042191A1
公开(公告)日：2024-02-08
申请号：US18375793
申请日：2023-10-02
申请人： Narwhal Medical LLC
发明人： Loïc Van Horne
IPC分类号： A61M60/178 , A61M60/824 , A61M60/538 , A61M60/808 , A61M60/414 , A61M60/841 , A61M60/226 , A61M60/13 , A61M60/174 , A61M60/216 , A61M60/585 , A61M60/81 , A61M60/416
CPC分类号： A61M60/178 , A61M60/824 , A61M60/538 , A61M60/808 , A61M60/414 , A61M60/841 , A61M60/226 , A61M60/13 , A61M60/174 , A61M60/216 , A61M60/585 , A61M60/81 , A61M60/416
摘要： Some embodiments of percutaneous ventricular assist devices have a two-part design that includes a housing component and a separately deployable rotatable inner catheter component. The housing component can include an expandable pump housing. The inner catheter can include an expandable pump impeller and an associated flexible drive shaft. The drive shaft can be coupled to a motor located external to the patient. The motor can rotate the drive shaft to spin the pump impeller inside of the pump housing, causing blood to be pumped within the patient. In some embodiments, the pump impeller is inflatable or self-expandable. The two-part percutaneous ventricular assist devices with inflatable or self-expandable pump impellers are designed to have very small delivery profiles. Accordingly, various deployment modalities, including radial artery deployment, are practicable using the two-part percutaneous ventricular assist devices described herein.
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公开(公告)号：US11872385B2
公开(公告)日：2024-01-16
申请号：US16980795
申请日：2019-03-13
发明人： William Smith
IPC分类号： A61M1/00 , A61M60/82 , A61M60/824 , A61M60/148 , A61M60/178 , A61M60/825 , A61M60/812 , A61M60/422 , A61M60/237
CPC分类号： A61M60/82 , A61M60/148 , A61M60/178 , A61M60/237 , A61M60/422 , A61M60/812 , A61M60/824 , A61M60/825 , A61M2205/103 , A61M2210/125
摘要： A blood pump (10) includes a pump housing (30) having a pump inlet (16) and a pump outlet (18) spaced apart along a longitudinally extending central pump axis (28). The blood pump (10) also includes a rotating assembly (100) comprising an impeller (104). The blood pump (10) further includes partial arc journal bearings (160, 180) that support the rotating assembly (100) for rotation in the housing (30). The rotating assembly (100) is rotatable relative to the housing (30) to pump blood from the pump inlet (16) to the pump outlet (18).
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公开(公告)号：US11857777B2
公开(公告)日：2024-01-02
申请号：US18061896
申请日：2022-12-05
申请人： PROCYRION, INC.
IPC分类号： A61M60/139 , A61M60/419 , A61M60/221 , A61M60/824 , F04D13/02 , F04D29/046 , A61M60/585 , A61M60/226 , A61M60/13 , A61M60/825 , F04D7/00 , F04D13/06 , F04D29/043 , F04D29/52 , F04D29/18 , A61M60/808 , A61M60/82
CPC分类号： A61M60/139 , A61M60/13 , A61M60/221 , A61M60/226 , A61M60/419 , A61M60/585 , A61M60/824 , A61M60/825 , F04D7/00 , F04D13/026 , F04D13/06 , F04D29/043 , F04D29/0467 , F04D29/181 , F04D29/528 , A61M60/808 , A61M60/82
摘要： A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.
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公开(公告)号：US20230364410A1
公开(公告)日：2023-11-16
申请号：US18341734
申请日：2023-06-26
申请人： VADOVATIONS, INC.
IPC分类号： A61M60/148 , A61M60/419 , A61M60/824 , A61M60/422 , A61M60/876 , A61M60/873 , A61M60/857 , A61M60/88 , A61M60/416 , A61M60/216 , A61M60/178 , A61M60/585
CPC分类号： A61M60/148 , A61M60/419 , A61M60/824 , A61M60/422 , A61M60/876 , A61M60/873 , A61M60/857 , A61M60/88 , A61M60/416 , A61M60/216 , A61M60/178 , A61M60/585
摘要： 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 with an impeller and one or of magnets located within the shaft that are responsive to the motor stator to drive actuation of the rotor. The housing bore is closely fitted to the outer surface of the shaft forming a hydrodynamic journal bearing with an annular clearance defining a leakage flow path. One or more of radial or axial thrust bearings may be provided to provide rotation stability to the rotor and flow within the leakage flow path. 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：US11801379B2
公开(公告)日：2023-10-31
申请号：US17244573
申请日：2021-04-29
申请人： TC1 LLC
发明人： Sarah Cohen
IPC分类号： A61M60/863 , A61M60/411 , A61M60/825 , A61M60/183 , A61M60/237 , A61M60/232 , A61M60/88 , A61M60/822 , A61M60/824 , A61M60/859 , A61M60/196 , A61M60/178 , A61M60/419 , A61B17/11 , A61M60/148
CPC分类号： A61M60/863 , A61M60/178 , A61M60/183 , A61M60/196 , A61M60/232 , A61M60/237 , A61M60/411 , A61M60/419 , A61M60/822 , A61M60/824 , A61M60/825 , A61M60/859 , A61M60/88 , A61B17/11 , A61B2017/1107 , A61M60/148 , A61M2205/8206
摘要： Connectors and related methods for fluidly coupling a blood pump with an aorta facilitate implantation of the blood pump. A method of fluidly coupling a blood pump with an aorta includes positioning a connector device defining a passageway extending between a proximal opening and a distal opening. The connector device includes a support member surrounding the distal opening. The support member is interfaced with a wall of the aorta so that the distal opening is at a desired location of an inlet opening in the aorta. The support member is attached to the aorta around the distal opening so as to form a fluid seal and stabilize the connector device. A slit is incised in the wall of the aorta to form the inlet opening in the aorta. A proximal opening of the tubular connector is fluidly coupled with an outflow graft tube of the blood pump.
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