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公开(公告)号：US11786719B2
公开(公告)日：2023-10-17
申请号：US17146183
申请日：2021-01-11
申请人： CARDIACASSIST, INC.
IPC分类号： F04D7/04 , A61M60/232 , A61M60/221 , A61M60/422 , F04D25/06 , F04D29/046 , F04D29/42 , A61M60/814 , A61M60/825 , A61M60/113
CPC分类号： A61M60/232 , A61M60/113 , A61M60/221 , A61M60/422 , A61M60/814 , A61M60/825 , F04D7/04 , F04D25/06 , F04D29/046 , F04D29/426
摘要： A centrifugal blood pump includes a housing having a pumping chamber, an inlet having an inlet axis, and an outlet having an outlet axis. The inlet and the outlet are in fluid communication with the pumping chamber. The pump further includes an impeller rotatably disposed within the pumping chamber, and a strut connected to the housing at the inlet. The strut is connected to the housing at a circumferential position about the inlet axis such that a major axis of the strut and the outlet axis define a predetermined angle in a cross-sectional plane perpendicular to the inlet axis. The circumferential position of the strut relative the outlet axis reduces or eliminates damage to blood flowing around the strut.
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公开(公告)号：US11801377B2
公开(公告)日：2023-10-31
申请号：US17141210
申请日：2021-01-04
发明人： Yijiang Li
IPC分类号： A61M60/38 , A61M60/419 , A61M60/806 , A61M60/814 , A61M60/205 , F04D7/04 , F04D29/043 , F04D29/24 , F04D29/42
CPC分类号： A61M60/38 , A61M60/205 , A61M60/419 , A61M60/806 , A61M60/814 , F04D7/045 , F04D29/043 , F04D29/24 , F04D29/426
摘要： A pump head includes a casing including a blood inlet configured to receive a flow of a blood and a blood outlet configured to allow the blood to flow out of the casing. The pump head also includes a shaft disposed in the casing. The pump head also includes a magnetic structure mounted onto the shaft. The pump head further includes an impeller having an open structure and mounted to an exterior surface of the magnetic structure through an opening provided at the open structure.
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公开(公告)号：US11754076B2
公开(公告)日：2023-09-12
申请号：US17288193
申请日：2020-03-19
发明人： Chengke Yin
IPC分类号： F04D13/02 , F04D13/06 , F04D15/00 , F04D29/42 , A61M60/814 , A61M60/419 , A61M60/422 , A61M60/216 , A61M60/196
CPC分类号： F04D13/027 , A61M60/196 , A61M60/216 , A61M60/419 , A61M60/422 , A61M60/814 , F04D13/024 , F04D13/06 , F04D15/0094 , F04D29/4293
摘要： A magnetic coupling suspension pump includes a stator body and a rotor. The stator body includes a magnetic suspension stator assembly and a magnetic coupler stator assembly; the rotor includes a magnetic suspension rotor assembly and a magnetic coupler rotor assembly; the magnetic suspension stator assembly and the magnetic suspension rotor assembly constitute a magnetic suspension assembly, and the magnetic suspension assembly is configured to generate radial uni-polar magnetic poles and magnetic fields arranged along a circumferential direction, resulting in that the rotor suspends; and the magnetic coupler stator assembly and the magnetic coupler rotor assembly constitute a magnetic coupler assembly, and the magnetic coupler assembly is configured to generate radial non-zero even number of periodic magnetic poles and magnetic fields arranged along the circumferential direction, resulting in that the rotor rotates.
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公开(公告)号：US12053624B2
公开(公告)日：2024-08-06
申请号：US17382912
申请日：2021-07-22
IPC分类号： A61M60/237 , A61M60/13 , A61M60/139 , A61M60/148 , A61M60/221 , A61M60/414 , A61M60/538 , A61M60/814 , A61M60/824 , A61M60/857 , A61M60/873 , A61M60/876 , A61M60/88
CPC分类号： A61M60/148 , A61M60/13 , A61M60/139 , A61M60/221 , A61M60/237 , A61M60/414 , A61M60/538 , A61M60/814 , A61M60/824 , A61M60/857 , A61M60/873 , A61M60/876 , A61M60/88 , A61M2205/04
摘要： Mechanical circulatory supports configured to operate in series with the native heart are disclosed. In an embodiment, an intravascular propeller is installed into the descending aorta and anchored within via an expandable anchoring mechanism. The propeller and anchoring mechanism may be foldable so as to be percutaneously deliverable to the aorta. The propeller may have foldable blades. The blades may be magnetic and may be driven by a concentric electromagnetic stator circumferentially outside the magnetic blades. The stator may be intravascular or may be configured to be installed around the outer circumference of the blood vessel. The support may create a pressure rise between about 20-50 mmHg, and maintain a flow rate of about 5 L/min. The support may have one or more pairs of contra-rotating propellers to modulate the tangential velocity of the blood flow. The support may have static pre-swirlers and or de-swirlers. The support may be optimized to replicate naturally occurring vortex formation within the descending aorta.
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公开(公告)号：US20230414924A1
公开(公告)日：2023-12-28
申请号：US18367841
申请日：2023-09-13
申请人： CARDIACASSIST, INC.
IPC分类号： A61M60/232 , A61M60/221 , A61M60/422 , F04D7/04 , F04D25/06 , F04D29/046 , F04D29/42 , A61M60/814 , A61M60/825 , A61M60/113
CPC分类号： A61M60/232 , A61M60/221 , A61M60/422 , F04D7/04 , F04D25/06 , F04D29/046 , F04D29/426 , A61M60/814 , A61M60/825 , A61M60/113
摘要： A centrifugal blood pump includes a housing having a pumping chamber, an inlet having an inlet axis, and an outlet having an outlet axis. The inlet and the outlet are in fluid communication with the pumping chamber. The pump further includes an impeller rotatably disposed within the pumping chamber, and a strut connected to the housing at the inlet. The strut is connected to the housing at a circumferential position about the inlet axis such that a major axis of the strut and the outlet axis define a predetermined angle in a cross-sectional plane perpendicular to the inlet axis. The circumferential position of the strut relative the outlet axis reduces or eliminates damage to blood flowing around the strut.
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公开(公告)号：US11684769B2
公开(公告)日：2023-06-27
申请号：US16721432
申请日：2019-12-19
申请人： TC1 LLC
发明人： Daniel I. Harjes , Eric Lee , Jin Woo Park
IPC分类号： A61M60/419 , A61M60/148 , A61M60/816 , A61M60/814 , A61M60/538 , A61M60/531 , A61M60/422 , A61M60/178 , A61M60/232
CPC分类号： A61M60/419 , A61M60/148 , A61M60/178 , A61M60/232 , A61M60/422 , A61M60/531 , A61M60/538 , A61M60/814 , A61M60/816 , A61M2205/0294 , A61M2205/103 , A61M2205/3344 , A61M2205/3365 , A61M2206/20
摘要： Disclosed herein is an implantable blood pump assembly that includes a housing defining an inlet, an outlet, a flow path extending from the inlet to the outlet, and an internal compartment separated from the flow path. The blood pump assembly further includes a rotor positioned within the flow path and operable to pump blood from the inlet to the outlet, a stator positioned within the internal compartment and operable to drive the rotor, and an inlet conduit connected to the housing inlet and having a downstream end that has a reduced cross-sectional area that produces a localized region of high velocity blood flow. The blood pump assembly further includes at least one pressure sensor positioned between the inlet and the outlet and configured to detect a pressure of blood flowing through the flow path. The pressure sensor is located adjacent the downstream end of the inlet conduit.
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