CN112516454B - Magnetic suspension artificial heart pump - Google Patents
Magnetic suspension artificial heart pump Download PDFInfo
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- CN112516454B CN112516454B CN202011356085.9A CN202011356085A CN112516454B CN 112516454 B CN112516454 B CN 112516454B CN 202011356085 A CN202011356085 A CN 202011356085A CN 112516454 B CN112516454 B CN 112516454B
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- magnet
- impeller
- blood
- artificial heart
- heart pump
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- 239000000725 suspension Substances 0.000 title claims abstract description 26
- 210000004369 blood Anatomy 0.000 claims description 71
- 239000008280 blood Substances 0.000 claims description 71
- 238000005119 centrifugation Methods 0.000 claims description 11
- 238000005339 levitation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002473 artificial blood Substances 0.000 abstract description 8
- 238000002513 implantation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 210000000601 blood cell Anatomy 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000012503 blood component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The embodiment of the invention discloses a magnetic suspension artificial heart pump, which further optimizes the structure of the magnetic suspension artificial heart pump, assembles a movable magnet to the bottom of a first impeller, and utilizes the first magnet horizontally arranged below the movable magnet to generate repulsive force on the movable magnet to suspend a centrifugal piece with the impeller in a containing cavity. In addition, the second magnet vertically arranged on the side surface of the movable magnet is utilized to generate eccentric magnetic force on the movable magnet, and the centrifugal piece with the impeller is driven to rotate in the accommodating cavity, so that the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to implantation in a body.
Description
Technical Field
The embodiment of the invention relates to the technical field of artificial heart pumps, in particular to a magnetic suspension artificial heart pump.
Background
The artificial heart pump is a small pump with variable speed and variable capacity, which is used for completely replacing heart operation, and is divided into an axial flow type blood pump and a centrifugal type blood pump according to the working principle of the blood pump, wherein the axial flow type blood pump rotates at a high speed when in operation, and blades can damage blood components, so that hemolysis and thrombus are formed, and long-term sealing is difficult. The magnetic suspension has the advantages of no contact, no friction, no lubrication, high precision and the like, well meets various severe requirements of the artificial heart, and can solve the problems of damage to blood cells, sealing of the bearing and the like caused by rolling of the bearing on blood in the traditional artificial heart design supported by the bearing. The existing centrifugal blood pump has the defects of large volume, complex structure and difficult implantation in the body.
Disclosure of Invention
The embodiment of the invention aims to provide a magnetic suspension artificial heart pump which is used for solving the technical problems of large volume, complex structure, difficult implantation in a human body and the like of the conventional centrifugal blood pump.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
the invention provides a magnetic suspension artificial heart pump, which comprises:
the shell is hollow in the interior to form a containing cavity, and the containing cavity is externally provided with a blood inlet and a blood outlet;
a centrifugal part which is positioned in the accommodating cavity, and a first impeller is arranged on one surface close to the blood inlet;
a magnet, comprising: a moving magnet and a fixed magnet embedded in the bottom of the housing, the moving magnet being fitted to the bottom of the first impeller;
the fixed magnet includes: a first magnet and a second magnet;
the first magnet is horizontally arranged below the movable magnet, generates repulsive force on the movable magnet, and floats the centrifugal piece in the accommodating cavity; and
The second magnet is vertically arranged on the side face of the movable magnet, generates eccentric magnetic force on the movable magnet, drives the centrifugal piece to rotate in the accommodating cavity, and drives the first impeller to rotate to centrifuge blood entering the accommodating cavity.
Preferably, the blood inlet is located at an upper portion of the housing and the blood outlet is located at a side of the housing.
Preferably, the plurality of moving magnets are arranged at uniform intervals along the circumferential direction under the first impeller to form a magnetic suspension rotating body, and a step is formed between the magnetic suspension rotating body and the first impeller.
Preferably, the number of the first magnets and the second magnets is the same as the number of the moving magnets, and the first magnets and the second magnets are assembled together in pairs and distributed in the bottom of the housing in the circumferential direction.
Preferably, the first magnet and the second magnet assembled in pairs form a 'l' shape.
Preferably, the centrifuge further comprises a second impeller disposed near the bottom of the accommodating chamber, and the rotation of the second impeller centrifigates blood at the bottom of the accommodating chamber.
Preferably, the moving magnet is embedded in the magnetic levitation rotating body between the first impeller and the second impeller.
Preferably, the second impeller is smaller than the first impeller, and the centrifugal effect of the second impeller is smaller than the centrifugal effect of the first impeller when the second impeller rotates synchronously.
Preferably, the outer contour of the moving magnet and the centrifugal element after assembly matches the inner contour of the receiving chamber.
Preferably, at least one longitudinally penetrating runner is arranged in the middle of the centrifugal part, and a liquid flow from top to bottom is formed through the runner in the centrifugation process, so that the blood at the bottom of the accommodating cavity flows to the blood outlet.
Compared with the prior art, the embodiment of the invention further optimizes the structure of the magnetic suspension artificial heart pump, the moving magnet is assembled at the bottom of the first impeller, and the centrifugal piece with the impeller is suspended in the accommodating cavity by the repulsive force generated by the moving magnet by utilizing the first magnet horizontally arranged below the moving magnet. In addition, the second magnet vertically arranged on the side surface of the movable magnet is utilized to generate eccentric magnetic force on the movable magnet, and the centrifugal piece with the impeller is driven to rotate in the accommodating cavity, so that the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to implantation in a body.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. Some specific embodiments of the present application will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings denote the same or similar parts or portions, and it will be understood by those skilled in the art that the drawings are not necessarily drawn to scale, in which:
FIG. 1 is a schematic diagram of the external structure of a magnetic levitation artificial heart pump according to an embodiment of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of a magnetic levitation artificial heart pump according to one embodiment of the present invention;
FIG. 3 is a schematic longitudinal cross-sectional view of a magnetic levitation artificial heart pump according to another embodiment of the present invention;
FIG. 4 is a top view of a centrifugal member of a magnetic levitation artificial heart pump according to an embodiment of the present invention, wherein a longitudinally penetrating flow channel is not provided in the middle of the centrifugal member;
fig. 5 is a bottom view of a centrifugal part of a magnetic suspension artificial heart pump according to an embodiment of the invention, wherein a longitudinally penetrating runner is not provided in the middle of the centrifugal part.
In the above figures:
1. a housing; 11. a receiving chamber; 12. a recess; 2. a centrifuge; 21. a first impeller; 22. a second impeller; 3. a magnet; 31. a moving magnet; 32. a fixed magnet; 321. a first magnet; 322. a second magnet; 4. a blood inlet; 5. a blood outlet; 6. a magnetic levitation rotating body; 7. a flow channel.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
In order to optimize the structure of the centrifugal artificial blood pump, the centrifugal artificial blood pump is easy to be put into a human body. As shown in fig. 1, 2 and 4, an embodiment of the present invention discloses a magnetic levitation artificial heart pump, which includes: a housing 1, a centrifuge 2 and a magnet 3.
The housing 1 is cylindrical, but may be other shapes suitable for blood centrifugation, such as volute, cuboid, cube, cone, etc. The housing 1 is hollow in the interior thereof to form a receiving chamber 11, the receiving chamber 11 being provided with a blood inlet 4 and a blood outlet 5 to the outside, the blood inlet 4 being for introducing blood into the receiving chamber 11, the blood outlet 5 being for withdrawing centrifuged blood. Preferably, the blood inlet 4 is located at the upper part of the housing 1 and the blood outlet 5 is located at the side of the housing 1. Further, a blood inlet 4 is provided in the middle of the housing 1.
The centrifuge 2 is located in the receiving chamber 11. As shown in fig. 2, the centrifuge 2 disclosed in one embodiment of the present invention is a centrifuge of a single-sided impeller, i.e., a first impeller 21 is provided on a side near the blood inlet 4. The centrifuge 2 rotates in the receiving chamber, and the blood introduced from the blood inlet 4 is centrifuged by the first impeller 21, and is led out from the blood outlet 5 after centrifugation.
The magnet 3 includes: a moving magnet 31 and a fixed magnet 32. The moving magnet 31 is fitted to the bottom of the first impeller 21, and the fixed magnet 32 is embedded in the bottom of the housing. The fixed magnet 32 includes: a first magnet 321 and a second magnet 322. The first magnet 321 is horizontally disposed under the moving magnet 31, generates a repulsive force to the moving magnet 31, and floats the centrifugal member 2 in the accommodating chamber 11.
Further, the plurality of moving magnets 31 are arranged at regular intervals in the circumferential direction under the first impeller 21 to form the magnetically levitated rotating body 6, and a step is formed between the magnetically levitated rotating body 6 and the first impeller 21. The outward magnetic poles of the plurality of moving magnets 31 have the same magnetism, and the inward magnetic poles of the plurality of moving magnets 31 also have the same magnetism. Correspondingly, the number of the first magnets 321 is the same as the number of the moving magnets 31. Also, the first magnets 321 are circumferentially uniformly spaced at the bottom of the housing 1, and the interval between the two first magnets 321 is equal to the interval between the two moving magnets 31. The magnetic properties of the magnetic poles of each first magnet 321 toward the moving magnet 31 are the same, and the magnetic properties of the magnetic poles of each first magnet 321 toward the moving magnet 31 are the same as the magnetic properties of the magnetic poles of each moving magnet 31 toward the first magnet 321. In this way, the repulsive force generated by the first magnet 321 against the moving magnet 31.
In the embodiment of the present invention, the first impeller 21 on the centrifugal member 2 is controlled not to contact the upper portion of the accommodating chamber 11 by controlling the repulsive force of the first magnet 321 to the moving magnet 31. In this way, the structure inside the accommodating cavity 11 is optimized, the volume of the accommodating cavity is reduced, the volume of the whole artificial heart pump is reduced, and the artificial heart pump is easy to implant into a human body.
The second magnet 322 is vertically disposed on the side of the moving magnet 31, and generates an eccentric magnetic force to the moving magnet 31, so as to drive the centrifuge 2 to rotate in the accommodating chamber 11, and drive the first impeller 21 to rotate to centrifuge the blood entering the accommodating chamber 11.
The number of second magnets 322 is the same as the number of moving magnets 31. Also, the second magnets 322 are circumferentially uniformly spaced at the bottom of the housing 1, and the interval between the two second magnets 3 is equal to the interval between the two moving magnets 31. The magnetic properties of the magnetic poles of each second magnet 322 facing the moving magnet 31 may be the same as the magnetic properties of the magnetic poles of each moving magnet 31 facing the second magnet 322, and the magnetic properties of the magnetic poles of each second magnet 322 facing the moving magnet 31 may be opposite to the magnetic properties of the magnetic poles of each moving magnet 31 facing the second magnet 321. In this way, the first magnet 321 may generate a repulsive force or a attractive force to the moving magnet 31.
In the embodiment of the present invention, since the plurality of second magnets 322 simultaneously generate eccentric magnetic forces (repulsive forces or attractive forces) to the moving magnets 31 at multiple points on the circumference of the bottom of the accommodating chamber, the generated magnetic forces have a certain eccentric angle with respect to the center of the centrifugal member 2, so that the centrifugal member 2 can be driven to rotate in the accommodating chamber 11. Thus, by vertically assembling the magnets for centrifugal drive, the space occupied by the magnets is greatly reduced, reducing the volume of the overall artificial heart pump.
The first magnet 321 and the second magnet 322 are assembled together in pairs and are circumferentially distributed in the bottom of the housing 1. The first magnet 321 and the second magnet 322 assembled in pairs form a "master" shape. The first magnet 321 and the second magnet 322 are assembled together in pairs, which is beneficial to saving space and reducing the volume of the whole artificial heart pump.
Referring to fig. 2, since the first magnet 321 and the second magnet 322 assembled together in pairs are embedded in the bottom of the accommodating chamber 11, the middle thickness of the bottom of the housing 1 is large. Preferably, the bottom outer surface of the housing 1 forms an inward recess 12. In this way, the weight of the artificial heart pump is further reduced.
The working principle of the magnetic suspension artificial heart pump with the single-sided impeller centrifugal piece disclosed by the embodiment of the invention is as follows: introducing blood into the receiving chamber 11 through the blood inlet 4; the centrifugal piece 2 and the first impeller 21 are suspended in the accommodating cavity 11 by a first magnet 321 horizontally arranged at the bottom of the accommodating cavity, and a repulsive force is generated on the moving magnet 31 under the driven magnet 31; the second magnet 322 vertically arranged at the bottom of the accommodating cavity 11 and the side surface of the driven magnet 31 generate eccentric magnetic force on the driven magnet 31 to drive the centrifugal piece 2 to rotate in the accommodating cavity 11 and drive the first impeller 21 to rotate so as to centrifuge blood entering the accommodating cavity 11; after centrifugation, blood is drawn through the blood outlet 5.
Compared with the prior art, the embodiment of the invention further optimizes the structure of the magnetic suspension artificial heart pump, the moving magnet is assembled at the bottom of the first impeller, and the centrifugal piece with the impeller is suspended in the accommodating cavity by the repulsive force generated by the moving magnet by utilizing the first magnet horizontally arranged below the moving magnet. In addition, the second magnet vertically arranged on the side surface of the movable magnet is utilized to generate eccentric magnetic force on the movable magnet, and the centrifugal piece with the impeller is driven to rotate in the accommodating cavity, so that the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to implantation in a body.
As shown in fig. 1, 3, 4 and 5, the embodiment of the present invention discloses a magnetic suspension artificial heart pump, wherein the centrifugal member 2 is a double-sided impeller centrifugal member, and specifically, on the basis of the above description, the centrifugal member 2 further comprises a second impeller 22 disposed near the bottom of the accommodating chamber 11, and the second impeller 22 rotates to centrifuge the blood at the bottom of the accommodating chamber. The moving magnet 31 is embedded in the magnetically levitated rotating body 6 between the first impeller 21 and the second impeller 22.
In holding chamber 11, centrifuge 2 and hold chamber 11 bottom and have the clearance, in the centrifugation in-process, blood gets into holding chamber 11 bottom clearance easily, is difficult to discharge, has greatly influenced centrifugal effect. According to the embodiment of the invention, the second impeller 22 is arranged near the bottom of the accommodating cavity 11 to form the centrifugal part of the double-sided impeller, and the double-sided impeller synchronously rotates and is centrifugally driven by magnetism, so that the technical problems are effectively solved, and the centrifugal efficiency is improved.
Preferably, referring to fig. 4 and 5, the second impeller 22 is smaller than the first impeller 21, and the centrifugal effect of the second impeller 22 is smaller than that of the first impeller 21 when rotated synchronously. In the embodiment of the invention, the primary centrifugal effect is on the upper part due to the centrifugal effect of the blood realized in the accommodating chamber 11, the first impeller 21 plays a primary role, the second impeller 22 plays a secondary role mainly for the blood remaining in the bottom gap of the accommodating chamber, the residual blood amount is small, and the second impeller 22 plays a secondary role. Based on the above description, the second impeller 22 is designed to be smaller than the first impeller 21, preventing the second impeller 22 from being designed to be excessively large, damaging blood cells, or affecting centrifugal vortex formed by the first impeller 21 in the accommodating chamber 11.
Referring to fig. 3, since the second impeller 22 is smaller than the first impeller 21, a step is formed between the second impeller 22 and the magnetically levitated rotating body 6. Further, the outer contour of the assembled moving magnet 31 and centrifuge 2 matches the inner contour of the receiving chamber 11. That is, the inner contour of the bottom of the receiving chamber 11 forms two continuous steps, so that the bottom of the housing 1 forms an assembly portion that matches the "l" shape formed by the pair of the first magnet 321 and the second magnet 322 assembled. At this time, the middle of the bottom of the shell 1 is designed to be a plane, so that an inward recess is not required to be formed, and the recess is prevented from occupying redundant space. Under the same conditions, the volume of the shell 1 is reduced.
The working principle of the magnetic suspension artificial heart pump with the double-sided impeller centrifugal piece disclosed by the embodiment of the invention is as follows: introducing blood into the receiving chamber 11 through the blood inlet 4; the centrifugal piece 2, the first impeller 21 and the second impeller 22 are suspended in the accommodating cavity 11 by a first magnet 321 horizontally arranged at the bottom of the accommodating cavity, and a repulsive force is generated on the moving magnet 31 under the driven magnet 31; the second magnet 322 vertically arranged at the bottom of the accommodating cavity 11 and the side surface of the driven magnet 31 generate eccentric magnetic force on the moving magnet 31 to drive the centrifugal piece 2 to rotate in the accommodating cavity 11 and drive the first impeller 21 and the second impeller 22 to synchronously rotate so as to centrifuge blood entering the accommodating cavity 11; after centrifugation, blood is drawn through the blood outlet 5.
Compared with the prior art, the embodiment of the invention further optimizes the structure of the magnetic suspension artificial heart pump, aims at the problem that blood is easy to remain in the bottom gap of the accommodating cavity, and improves the centrifugal efficiency by utilizing the design of the double-sided impeller and carrying out auxiliary centrifugation on the blood remaining at the lower part through the second impeller on the premise of not damaging blood cells.
As shown in fig. 2 and 3, the embodiment of the invention discloses a magnetic suspension artificial heart pump, wherein at least one longitudinally penetrating runner 7 is arranged in the middle of a centrifugal member 2, and a liquid flow from top to bottom is formed through the runner 7 in the centrifugation, so that blood at the bottom of a containing cavity 11 flows to a blood outlet.
The working principle of the magnetic suspension artificial heart pump with the centrifugal piece with the longitudinal through flow passage disclosed by the embodiment of the invention is as follows: introducing blood into the receiving chamber 11 through the blood inlet 4; the centrifugal member 2, the first impeller 21 and/or the second impeller 22 are suspended in the accommodating chamber 11 by a first magnet 321 horizontally disposed at the bottom of the accommodating chamber, under the driven magnet 31, generating repulsive force to the moving magnet 31; the second magnet 322 vertically arranged at the bottom of the accommodating cavity 11 and the side surface of the driven magnet 31 generate eccentric magnetic force on the driven magnet 31, so that the centrifugal piece 2 is driven to rotate in the accommodating cavity 11, the first impeller 21 and/or the second impeller 22 are driven to synchronously rotate to centrifuge the blood entering the accommodating cavity 11, and after centrifugation, the blood is led out through the blood outlet 5; in centrifugation, a flow of liquid from top to bottom is established in the flow channel 7 by the action of the first impeller 21 and/or the second impeller 22, and the blood at the bottom of the receiving chamber 11 is caused to flow towards the blood outlet.
The second impeller is designed to have the same purpose, and in the embodiment of the invention, the longitudinal through flow passage is designed in the middle of the centrifugal part, so that the problem that blood is easy to remain in the bottom gap of the accommodating cavity is solved. Through the design of the runner, blood cells are not easy to damage, and under the action of the impeller, the runner is utilized to form liquid flow from top to bottom to lead out the blood remained at the bottom of the accommodating cavity from the blood outlet, so that the centrifugal efficiency is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A magnetic levitation artificial heart pump, wherein the artificial heart pump is disposed in an intake body, the artificial heart pump comprising:
the shell is hollow in the interior to form a containing cavity, and the containing cavity is externally provided with a blood inlet and a blood outlet;
the centrifugal part comprises a first impeller arranged on one surface close to the blood inlet and a second impeller arranged close to the bottom of the accommodating cavity; the second impeller rotates to centrifuge blood at the bottom of the accommodating cavity, the second impeller is smaller than the first impeller, and the centrifugal effect of the second impeller is smaller than that of the first impeller when the second impeller rotates synchronously;
a magnet, comprising: the movable magnet is assembled to the bottom of the first impeller, and is embedded into the magnetic suspension rotating main body between the first impeller and the second impeller;
the fixed magnet includes: a first magnet and a second magnet;
the first magnet is horizontally arranged below the movable magnet, generates repulsive force on the movable magnet, and floats the centrifugal piece in the accommodating cavity; and
The second magnet is vertically arranged on the side surface of the movable magnet, generates eccentric magnetic force on the movable magnet, drives the centrifugal piece to rotate in the accommodating cavity, and drives the first impeller to rotate so as to centrifuge blood entering the accommodating cavity;
the first magnet and the second magnet are assembled together in pairs and are embedded into the bottom of the accommodating cavity of the shell to form a matched assembly part with the first magnet and the second magnet assembled in pairs, and the outer outline of the moving magnet and the centrifugal piece after being assembled is matched with the inner outline of the accommodating cavity;
at least one longitudinally-through runner is arranged in the middle of the centrifugal piece, and a liquid flow from top to bottom is formed through the runner in the centrifugation process, so that blood at the bottom of the accommodating cavity flows to the blood outlet.
2. A magnetically levitated artificial heart pump according to claim 1, wherein the blood inlet is located in an upper portion of the housing and the blood outlet is located on a side of the housing.
3. A magnetically levitated artificial heart pump as claimed in claim 2, wherein the plurality of moving magnets are arranged at regular intervals in the circumferential direction under the first impeller to form magnetically levitated rotating bodies, and a step is formed between the magnetically levitated rotating bodies and the first impeller.
4. A magnetic levitation artificial heart pump as in claim 3, wherein the first magnet and the second magnet are the same number as the moving magnet and are circumferentially distributed within the bottom of the housing.
5. A magnetic levitation artificial heart pump as defined in claim 4, wherein the first magnet and the second magnet assembled in pairs form a "master" shape.
6. A magnetically levitated artificial heart pump according to claim 1, wherein the moving magnet is embedded in a magnetically levitated rotating body between the first impeller and the second impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356085.9A CN112516454B (en) | 2020-11-26 | 2020-11-26 | Magnetic suspension artificial heart pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356085.9A CN112516454B (en) | 2020-11-26 | 2020-11-26 | Magnetic suspension artificial heart pump |
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| Publication Number | Publication Date |
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| CN112516454A CN112516454A (en) | 2021-03-19 |
| CN112516454B true CN112516454B (en) | 2024-04-09 |
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| CN202011356085.9A Active CN112516454B (en) | 2020-11-26 | 2020-11-26 | Magnetic suspension artificial heart pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302661B1 (en) * | 1996-05-03 | 2001-10-16 | Pratap S. Khanwilkar | Electromagnetically suspended and rotated centrifugal pumping apparatus and method |
| CN101601875A (en) * | 2009-06-11 | 2009-12-16 | 浙江大学 | The blood passive control suspension bearing that is used for applied to implantable centrifugal blood pump |
| CN107693869A (en) * | 2017-09-30 | 2018-02-16 | 北京安生生物技术有限责任公司 | A kind of suspension of five-freedom degree magnetic receded disk impeller that can reduce haemolysis and thrombus |
| 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 |
| CN111249551A (en) * | 2020-01-21 | 2020-06-09 | 深圳汉诺医疗科技有限公司 | Worm type pump head for artificial heart, artificial heart pump and ECMO equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010039369A1 (en) * | 1999-12-14 | 2001-11-08 | Terentiev Alexandre N. | Blood pump system |
| CN103957957B (en) * | 2011-08-17 | 2017-08-15 | 弗洛福沃德医药股份有限公司 | Blood pump systems |
| US10245361B2 (en) * | 2015-02-13 | 2019-04-02 | Tc1 Llc | Impeller suspension mechanism for heart pump |
-
2020
- 2020-11-26 CN CN202011356085.9A patent/CN112516454B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6302661B1 (en) * | 1996-05-03 | 2001-10-16 | Pratap S. Khanwilkar | Electromagnetically suspended and rotated centrifugal pumping apparatus and method |
| CN101601875A (en) * | 2009-06-11 | 2009-12-16 | 浙江大学 | The blood passive control suspension bearing that is used for applied to implantable centrifugal blood pump |
| CN107693869A (en) * | 2017-09-30 | 2018-02-16 | 北京安生生物技术有限责任公司 | A kind of suspension of five-freedom degree magnetic receded disk impeller that can reduce haemolysis and thrombus |
| 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 |
| CN111249551A (en) * | 2020-01-21 | 2020-06-09 | 深圳汉诺医疗科技有限公司 | Worm type pump head for artificial heart, artificial heart pump and ECMO equipment |
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| CN112516454A (en) | 2021-03-19 |
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