CN107469168B - Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus - Google Patents
Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus Download PDFInfo
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- CN107469168B CN107469168B CN201710945898.3A CN201710945898A CN107469168B CN 107469168 B CN107469168 B CN 107469168B CN 201710945898 A CN201710945898 A CN 201710945898A CN 107469168 B CN107469168 B CN 107469168B
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 21
- 239000000725 suspension Substances 0.000 title claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000005339 levitation Methods 0.000 claims description 4
- 210000004369 blood Anatomy 0.000 abstract description 13
- 239000008280 blood Substances 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 210000000601 blood cell Anatomy 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 206010018910 Haemolysis Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008588 hemolysis Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 101100327310 Caenorhabditis elegans emb-27 gene Proteins 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/82—Magnetic bearings
- A61M60/822—Magnetic bearings specially adapted for being actively controlled
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/178—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/226—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly radial components
- A61M60/232—Centrifugal pumps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/804—Impellers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/82—Magnetic bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/825—Contact bearings, e.g. ball-and-cup or pivot bearings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Mechanical Engineering (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus, which comprises a static part and an impeller rotor, wherein the static part is a shell, a pump inlet and a pump outlet are arranged on the shell, the impeller rotor comprises blades and a cylindrical boss, the blades and the cylindrical boss are arranged in the shell, a cylindrical through hole is formed in the center of the boss, a plurality of first cavities are formed in the outer side of the through hole along the circumferential direction of the boss, and first magnets are arranged in the first cavities; the tray is arranged below the shell, a plurality of second cavities are formed in the tray, second magnets are arranged in the second cavities, the guide cover is arranged above the through holes, the edge of the guide cover is connected with the front edges of the blades into a whole, the shaft is arranged below the guide cover, the top of the shaft is tangent with the inner surface of the guide cover, and the bottom of the shaft is connected with the impeller shell. The centrifugal impeller of the invention ensures that blood runs in a closed loop, and avoids the problems of lubrication, sealing and blood pollution.
Description
Technical Field
The invention belongs to the field of medical equipment, and particularly relates to a single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus.
Background
The incidence of severe heart failure rises year by year, but heart donors available for transplantation are very few, and the artificial heart can effectively solve the problem of donor deficiency and is divided into a full artificial heart and a ventricular assist device from the class of working principles. The most important of artificial hearts are impellers, and the biggest problem is the problem of hemolysis and coagulation caused during the operation of the heart pump.
The development of artificial hearts has undergone pulsatile pumps, rotary pumps with shafts, and magnetic suspension pumps. The magnetic suspension pump can effectively solve the problems of damage and sealing of the mechanical bearing to blood cells, and comprises a magnetic suspension centrifugal pump and a magnetic suspension axial flow pump.
Disclosure of Invention
In view of the above, the present invention aims to provide a single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus, which adopts a single-degree-of-freedom magnetic suspension centrifugal pump design, and is easier to manufacture and process than a five-degree-of-freedom magnetic suspension centrifugal pump, the mutual attraction between a unique flow guide groove and a shaft is ensured, the pump can stably run at any angle, and meanwhile, the structure is optimized to reduce the grinding of solids on blood cells, and the scouring of blood on the wall surface is increased, so that the occurrence of hemolysis and thrombus is reduced.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus comprises a static part and an impeller rotor, wherein the static part is a shell, a pump inlet and a pump outlet are formed in the shell, the impeller rotor comprises blades and a cylindrical boss, the blades are arranged in the shell uniformly along the circumferential direction, a cylindrical through hole is formed in the center of the boss, a plurality of first cavities are formed in the outer side of the through hole along the circumferential direction of the boss, and first magnets are arranged in the first cavities; a tray is arranged below the shell, a plurality of second cavities are formed in the tray, second magnets are arranged in the second cavities, the first cavities and the second cavities are arranged up and down correspondingly, a guide cover is arranged above the through holes, the edge of the air guide sleeve is connected with the front edges of the blades into a whole, a shaft is arranged below the air guide sleeve, the top of the shaft is tangent to the inner surface of the air guide sleeve, and the bottom of the shaft is connected with the impeller shell into a whole.
Further, a third magnet is arranged in the top of the air guide sleeve, and a fourth magnet which is attracted with the third magnet is arranged in the top of the shaft.
Further, the surface of the air guide sleeve is a streamline surface, and the cross-sectional area from the top to the bottom is gradually increased.
Further, the inner surface of the air guide sleeve is provided with a plurality of guide grooves, and the guide grooves radially extend towards the edge of the air guide sleeve along the top of the air guide sleeve.
Further, the diameter of the shaft is smaller than that of the through hole, and a circular gap is formed between the shaft and the through hole.
Further, the number of the diversion trenches is 1-10.
Further, the number of the blades is 2-6.
Compared with the prior art, the single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus generation has the following advantages:
(1) Compared with the traditional centrifugal impeller, the single-degree-of-freedom magnetic suspension centrifugal impeller with reduced thrombus generation adopts the design of the single-degree-of-freedom magnetic suspension centrifugal pump, and rotor components are completely placed in the impeller shell, so that the running of blood in a closed loop is ensured, and the problems of lubrication, sealing and blood pollution are avoided;
(2) The third magnet in the single-degree-of-freedom magnetic suspension centrifugal impeller guide cover for reducing thrombus generation and the fourth magnet at the top end of the shaft are attracted to each other, so that the pump can stably run at any angle, normal movement of a patient for installing a full artificial heart or assisting the artificial heart can be met, meanwhile, the guide cover is separated from the shaft due to the floating lift force effect of fluid on the impeller rotor, no mechanical contact is formed between the rotor, the impeller shell and the shaft in the running process, and damage to blood cells is reduced;
(3) The plurality of diversion trenches on the inner surface of the diversion cover in the single-degree-of-freedom magnetic suspension centrifugal impeller for reducing the occurrence of thrombus can increase the blood flow and reduce the blood retention between the inner surface of the diversion cover and the upper surface of the shaft, thereby reducing the occurrence of thrombus;
(4) In the running process of the single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus, fluid at the bottom of the boss flows upwards along the gap between the boss and the shaft, so that the stagnation of the fluid in the gap between the bottom of the boss and the shaft is avoided, and the thrombus is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a cross-sectional view of a single degree of freedom magnetic levitation centrifugal impeller for reducing thrombus formation in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a bottom surface of a boss according to an embodiment of the present invention;
FIG. 3 is a schematic view of a pod according to an embodiment of the invention;
fig. 4 is a schematic diagram of blood flow during operation of the single degree of freedom magnetic levitation centrifugal impeller according to an embodiment of the invention.
Reference numerals illustrate:
1. a housing; 2. an inlet; 3. an outlet, 4, a blade; 5. a boss; 6. a guide cover; 7. a shaft; 8. a first magnet; 9. a tray; 10. a second magnet; 11. a through hole; 12. a first cavity; 13. a third magnet; 14. a fourth magnet; 15. a diversion trench;
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus comprises a static part and an impeller rotor, wherein the static part is a shell 1, a pump inlet 2 and a pump outlet 3 are arranged on the shell 1, the impeller rotor comprises a boss 5 and 2-6 blades 4 which are arranged in the shell 1, the boss 5 is cylindrical, the blades 4 are uniformly arranged along the circumferential direction, referring to fig. 2, a cylindrical through hole 11 is formed in the center of the boss 5, a plurality of first cavities 12 are formed in the outer side of the through hole 11 along the circumferential direction of the boss 5, and a first magnet 8 is arranged in the first cavities 12 and is packaged in a second cavity; a tray 9 is arranged below the shell 1, a plurality of second cavities are formed in the tray, and second magnets 10 are arranged in the second cavities and are encapsulated in the second cavities; the first cavity 12 and the second cavity are arranged up and down correspondingly, the guide cover 6 is arranged above the through hole 11, the edge of the guide cover 6 is connected with the front edge of the blade 4 into a whole, the shaft 7 is arranged below the guide cover 6, the top of the shaft 7 is tangent with the inner surface of the guide cover 6, and the bottom of the shaft 7 is connected with the impeller shell 1.
Referring to fig. 1 and 3, a third magnet 13 is mounted in the top of the pod 6, and a fourth magnet 14 that attracts the third magnet 13 is mounted in the top of the shaft 7. The surface of the air guide sleeve 6 is a streamline surface, and the cross-sectional area from the top to the bottom is gradually increased.
When the external magnetic field changes, the external magnetic field acts on the first magnet 8 to drive the impeller rotor to rotate. In the rotation process of the impeller rotor, fluid has an upward lifting buoyancy effect on the blades 4, and the buoyancy force enables the impeller rotor to lift a certain distance, so that gaps exist between the air guide sleeve 6 and the shaft 7, mechanical contact between the impeller rotor and the impeller shell 1 and between the impeller rotor and the shaft 7 is avoided, suspension of the impeller rotor in the shell 1 is ensured, and damage of mechanical parts to blood cells is reduced.
The acting force between the fourth magnet 14 arranged on the upper part of the shaft 7 and the third magnet 13 arranged on the air guide sleeve 6 is attractive, so that the pump can run stably at any angle, and if the impeller is used for a human body as a full artificial heart or an auxiliary artificial heart, the normal sitting, lying, moving and lying of the physiological activities of the human body can be satisfied.
The inner surface of the air guide sleeve 6 is provided with a plurality of guide grooves 15, the inner surface of the air guide sleeve 6 is provided with 1-10 guide grooves 15, the guide grooves 15 extend along the top of the air guide sleeve 6 to the edge of the air guide sleeve 6 and are radial, the bending direction of the guide grooves is the same as that of the blades 4, and the shape of the guide grooves is the same as or similar to that of the blades 4. During rotation, blood can flow through the flow guide groove 15, so that the blood flow between the flow guide cover 6 and the shaft 7 is increased, and the blood retention between the inner surface of the flow guide cover 6 and the upper surface of the shaft 7 is reduced, thereby reducing thrombus.
Referring to fig. 4, in operation, blood enters from the inlet 2, and flows to the outlet 3 due to centrifugal force generated by rotation of the impeller rotor, completing a blood flow process. In this process, since there is a gap between the shaft 7 and the through hole 11 of the boss 5 having a circular center, blood can flow out from the gap therebetween, increasing the flushing of the inner wall of the through hole 11 of the boss 5 and the surface of the shaft 7 by the fluid. While the fluid at the bottom of the boss 5 is driven to flow upward along the gap between the boss 5 and the shaft 77. Blood is prevented from stagnating at the bottom of the boss 5, and thrombus formation is further reduced.
Compared with the traditional centrifugal impeller, the impeller rotor is completely placed in the impeller shell 1, so that the blood is ensured to run in a closed loop, and the problems of lubrication, sealing and blood pollution are avoided.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. A single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus generation is characterized in that: the impeller comprises a static part and an impeller rotor, wherein the static part is a shell (1), a pump inlet (2) and a pump outlet (3) are arranged on the shell (1), the impeller rotor comprises blades (4) and cylindrical bosses (5) which are arranged inside the shell (1), the blades (4) are uniformly arranged along the circumferential direction, a cylindrical through hole (11) is formed in the center of each boss (5), a plurality of first cavities (12) are formed in the outer side of each through hole (11) along the circumferential direction of each boss (5), and first magnets (8) are arranged in the first cavities (12); a tray (9) is arranged below the shell (1), a plurality of second cavities are formed in the tray, second magnets (10) are arranged in the second cavities, the first cavities (12) and the second cavities are arranged up and down correspondingly, a guide cover (6) is arranged above the through holes (11), the edge of the guide cover (6) is connected with the front edge of the blade (4) into a whole, a shaft (7) is arranged below the guide cover (6), the top of the shaft (7) is tangent to the inner surface of the guide cover (6), and the bottom of the shaft is connected with the impeller shell (1) into a whole;
a third magnet (13) is arranged in the top of the air guide sleeve (6), and a fourth magnet (14) which is attracted with the third magnet (13) is arranged in the top of the shaft (7);
the surface of the air guide sleeve (6) is a streamline surface, and the cross-sectional area from the top to the bottom is gradually increased;
the inner surface of the air guide sleeve (6) is provided with a plurality of guide grooves (15), and the guide grooves (15) radially extend towards the edge of the air guide sleeve (6) along the top of the air guide sleeve (6);
the diameter of the shaft (7) is smaller than that of the through hole (11), and a circular gap is formed between the shaft and the through hole.
2. The single degree of freedom magnetic levitation centrifugal impeller for reducing thrombus formation of claim 1 wherein: the number of the diversion trenches (15) is 1-10.
3. The single degree of freedom magnetic levitation centrifugal impeller for reducing thrombus formation of claim 1 wherein: the number of the blades (4) is 2-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945898.3A CN107469168B (en) | 2017-09-30 | 2017-09-30 | Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945898.3A CN107469168B (en) | 2017-09-30 | 2017-09-30 | Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107469168A CN107469168A (en) | 2017-12-15 |
| CN107469168B true CN107469168B (en) | 2024-04-02 |
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| CN201710945898.3A Active CN107469168B (en) | 2017-09-30 | 2017-09-30 | Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114003A (en) * | 2018-10-15 | 2019-01-01 | 南通中菱电力科技股份有限公司 | A kind of centrifugal removal of impurities pump |
| IT201800009502A1 (en) * | 2018-10-16 | 2020-04-16 | Eurosets Srl | CENTRIFUGAL PUMP WITH MAGNETIC LEVITATION |
| CN110947040A (en) * | 2019-12-18 | 2020-04-03 | 山东大学 | Extracorporeal circulation blood pump and method |
| CN111249551B (en) | 2020-01-21 | 2020-11-24 | 深圳汉诺医疗创新技术有限公司 | Worm type pump head for artificial heart, artificial heart pump and ECMO equipment |
| EP3854447A1 (en) * | 2020-01-21 | 2021-07-28 | Chinabridge (Shenzen) Medical Technology Co., Ltd. | Centrifugal blood pump |
| CN111840683A (en) * | 2020-07-31 | 2020-10-30 | 余顺周 | Interventional ventricular assist device |
| CN112121249B (en) * | 2020-10-21 | 2022-07-01 | 山东大学 | In-vitro centrifugal magnetic suspension artificial heart pump and use method |
| CN118662776A (en) * | 2024-08-22 | 2024-09-20 | 安徽通灵仿生科技有限公司 | Magnetic suspension blood pump |
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| CN208448253U (en) * | 2017-09-30 | 2019-02-01 | 北京安生生物技术有限责任公司 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6250880B1 (en) * | 1997-09-05 | 2001-06-26 | Ventrassist Pty. Ltd | Rotary pump with exclusively hydrodynamically suspended impeller |
| US20030113208A1 (en) * | 2001-12-17 | 2003-06-19 | Hart Robert M. | Rotary blood pump |
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