CN112516454A - Magnetic suspension artificial heart pump - Google Patents
Magnetic suspension artificial heart pump Download PDFInfo
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- CN112516454A CN112516454A CN202011356085.9A CN202011356085A CN112516454A CN 112516454 A CN112516454 A CN 112516454A CN 202011356085 A CN202011356085 A CN 202011356085A CN 112516454 A CN112516454 A CN 112516454A
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- magnet
- impeller
- blood
- artificial heart
- heart pump
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- 239000000725 suspension Substances 0.000 title abstract description 30
- 210000004369 blood Anatomy 0.000 claims description 77
- 239000008280 blood Substances 0.000 claims description 77
- 238000005119 centrifugation Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 2
- 239000002473 artificial blood Substances 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 4
- 210000000601 blood cell Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 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
- 238000002513 implantation Methods 0.000 description 1
- 238000005339 levitation Methods 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
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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, wherein a moving magnet is assembled at the bottom of a first impeller, and a centrifugal part with the impeller is suspended in an accommodating cavity by utilizing the repulsion force generated to the moving magnet by utilizing a first magnet horizontally arranged below the moving magnet. In addition, the second magnet vertically arranged on the side surface of the moving magnet is utilized to generate eccentric magnetic force to the moving magnet, the centrifugal piece driving the impeller is driven to rotate in the accommodating cavity, the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to being implanted into 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 variable-speed and variable-capacity mini pump used for completely replacing the heart to work, 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 during working, blades can damage blood components, 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 harsh 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 artificial heart design supported by the traditional bearing. The prior 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 that the existing centrifugal blood pump is large in size, complex in structure, difficult to implant in a body and the like.
In order to realize 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 blood collection device comprises a shell, a blood collection device and a blood collection device, wherein the shell is hollow inside to form an accommodating cavity, and the accommodating cavity is externally provided with a blood inlet and a blood outlet;
the centrifugal piece is positioned in the accommodating cavity, and a first impeller is arranged on one surface, close to the blood inlet, of the centrifugal piece;
a magnet, comprising: the moving magnet and the fixed magnet are embedded into the bottom of the shell, and the moving magnet is assembled 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 moving magnet, generates repulsive force to the moving magnet and suspends the centrifugal piece in the accommodating cavity; and
the second magnet is vertically arranged on the side face of the movable magnet and generates eccentric magnetic force on the movable magnet to drive the centrifugal piece to rotate in the accommodating cavity and drive the first impeller to rotate so as 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 number of the moving magnets is multiple, the multiple moving magnets are uniformly arranged under the first impeller at intervals along the circumferential direction to form a magnetic suspension rotating main body, and a step is formed between the magnetic suspension rotating main body and the first impeller.
Preferably, the number of the first magnet and the second magnet is the same as that of the moving magnets, and the first magnet and the second magnet are assembled together in pairs and are circumferentially distributed in the bottom of the shell.
Preferably, the first and second magnets assembled in pairs form a "" -shape.
Preferably, the centrifuge further comprises a second impeller arranged near the bottom of the accommodating cavity, and the second impeller rotates to centrifuge blood at the bottom of the accommodating cavity.
Preferably, the moving magnet is embedded in the magnetically levitated rotating body between the first and second impellers.
Preferably, the second impeller is smaller than the first impeller, and the centrifugal action of the second impeller is smaller than that of the first impeller when the second impeller rotates synchronously.
Preferably, the assembled outer contour of the moving magnet and the centrifugal piece matches the inner contour of the accommodating cavity.
Preferably, at least one flow channel which is longitudinally communicated is arranged in the middle of the centrifugal piece, and during centrifugation, a liquid flow from top to bottom is formed through the flow channel to enable the blood at the bottom of the containing cavity to flow 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 movable magnet is assembled at the bottom of the first impeller, and the centrifugal piece with the impeller is suspended in the accommodating cavity by utilizing the repulsion force generated to the movable magnet by utilizing the first magnet horizontally arranged below the movable magnet. In addition, the second magnet vertically arranged on the side surface of the moving magnet is utilized to generate eccentric magnetic force to the moving magnet, the centrifugal piece driving the impeller is driven to rotate in the accommodating cavity, the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to being implanted into 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 embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like 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 an external structure of a magnetic suspension artificial heart pump according to an embodiment of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of a magnetically levitated artificial heart pump according to an embodiment of the present invention;
FIG. 3 is a schematic longitudinal sectional view of a magnetically levitated artificial heart pump according to another embodiment of the present invention;
FIG. 4 is a top view of a centrifugal part of a magnetic levitation artificial heart pump, wherein a longitudinally through flow channel is not arranged in the middle of the centrifugal part;
fig. 5 is a bottom view of a centrifugal part of a magnetic suspension artificial heart pump, wherein a longitudinally through flow channel is not arranged in the middle of the centrifugal part.
In the above drawings:
1. a housing; 11. an accommodating chamber; 12. recessing; 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 suspension rotating main body; 7. and a flow passage.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to optimize the structure of the centrifugal artificial blood pump, the 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 suspension artificial heart pump, which includes: a housing 1, a centrifuge 2 and a magnet 3.
The casing 1 is cylindrical, and may be in other shapes suitable for blood centrifugation, such as volute, cuboid, cube, and cone. The inside of the shell 1 is hollow to form a containing cavity 11, the containing cavity 11 is externally provided with a blood inlet 4 and a blood outlet 5, the blood inlet 4 is used for introducing blood into the containing cavity 11, and the blood outlet 5 is used for leading out 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 single-sided impeller centrifuge, i.e., a first impeller 21 is provided on a side close to the blood inlet 4. The centrifuge 2 rotates in the receiving chamber, and the blood introduced through the blood inlet 4 is centrifuged by the first impeller 21 and then is discharged through the blood outlet 5.
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 below the moving magnet 31, and generates a repulsive force to the moving magnet 31 to suspend the centrifugal member 2 in the accommodation chamber 11.
Further, the number of the moving magnets 31 is multiple, the multiple moving magnets 31 are uniformly arranged under the first impeller 21 at intervals along the circumferential direction to form the magnetic suspension rotating body 6, and a step is formed between the magnetic suspension rotating body 6 and the first impeller 21. The outward magnetic poles of the plurality of moving magnets 31 have the same magnetic polarity, and the inward magnetic poles of the plurality of moving magnets 31 also have the same magnetic polarity. Correspondingly, the number of the first magnets 321 is the same as the number of the moving magnets 31. Similarly, the first magnets 321 are circumferentially and uniformly arranged at intervals 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 polarity of each first magnet 321 toward the moving magnet 31 is the same, and the magnetic polarity of each first magnet 321 toward the moving magnet 31 is the same as the magnetic polarity of each moving magnet 31 toward the first magnet 321. Thus, the first magnet 321 generates a repulsive force to 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 part of the accommodating chamber 11 by controlling the magnitude of the repulsive force generated by the first magnet 321 to the moving magnet 31. Therefore, the structure inside the accommodating cavity 11 is optimized, the accommodating cavity volume 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 a side surface of the moving magnet 31, and generates an eccentric magnetic force on the moving magnet 31 to drive the centrifugal piece 2 to rotate in the accommodating cavity 11, so as to drive the first impeller 21 to rotate to centrifuge blood entering the accommodating cavity 11.
The number of the second magnets 322 is the same as the number of the moving magnets 31. Similarly, the second magnets 322 are circumferentially and uniformly spaced at the bottom of the housing 1, and the spacing between the two second magnets 3 is equal to the spacing between the two moving magnets 31. The magnetic polarity of each second magnet 322 facing the moving magnet 31 is the same, the magnetic polarity of each second magnet 322 facing the moving magnet 31 may be the same as the magnetic polarity of each moving magnet 31 facing the second magnet 322, and the magnetic polarity of each second magnet 322 facing the moving magnet 31 may be opposite to the magnetic polarity of each moving magnet 31 facing the second magnet 321. Thus, the first magnet 321 may generate a repulsive force or an attractive force with respect 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 or attractive forces) to the moving magnet 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, and can drive the centrifugal member 2 to rotate in the accommodating chamber 11. Thus, the space occupied by the magnet is greatly reduced by the vertical assembly mode of the magnet for centrifugal driving, and the volume of the whole artificial heart pump is reduced.
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 and second magnets 321 and 322 assembled in pairs form a "". 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 and second magnets 321 and 322 assembled in pairs are embedded in the bottom of the receiving 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 in the embodiment of the invention is as follows: introducing blood into the receiving chamber 11 through the blood inlet 4; through the first magnet 321 horizontally arranged at the bottom of the accommodating cavity and under the driven magnet 31, repulsive force is generated on the driven magnet 31, and the centrifugal piece 2 and the first impeller 21 are suspended in the accommodating cavity 11; 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, and the first impeller 21 is driven to rotate 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 movable magnet is assembled at the bottom of the first impeller, and the centrifugal piece with the impeller is suspended in the accommodating cavity by utilizing the repulsion force generated to the movable magnet by utilizing the first magnet horizontally arranged below the movable magnet. In addition, the second magnet vertically arranged on the side surface of the moving magnet is utilized to generate eccentric magnetic force to the moving magnet, the centrifugal piece driving the impeller is driven to rotate in the accommodating cavity, the volume of the magnetic suspension artificial blood pump is reduced, and the magnetic suspension artificial blood pump is beneficial to being implanted into a body.
As shown in fig. 1, 3, 4 and 5, the embodiment of the invention discloses a magnetic suspension artificial heart pump, the centrifugal part 2 is a double-sided impeller centrifugal part, specifically, on the basis of the above description, the centrifugal part 2 further comprises a second impeller 22 arranged near the bottom of the accommodating cavity 11, and the second impeller 22 rotates to centrifuge blood at the bottom of the accommodating cavity. The moving magnet 31 is embedded in the magnetically levitated rotating body 6 between the first and second impellers 21 and 22.
In holding chamber 11, there is the clearance centrifugation piece 2 with hold chamber 11 bottom, and in centrifugal process, blood got into easily and holds 11 bottom clearances of chamber, was difficult to discharge, has greatly influenced centrifugal effect. In the embodiment of the invention, the second impeller 22 is arranged near the bottom of the accommodating cavity 11 to form a centrifugal part of the double-sided impeller, and the double-sided impeller synchronously rotates and centrifuges under magnetic drive, so that the technical problem is effectively solved, and the centrifugation efficiency is improved.
Preferably, with reference to fig. 4 and 5, the second impeller 22 is smaller than the first impeller 21, and the centrifugal action of the second impeller 22 is smaller than that of the first impeller 21 when rotating synchronously. In the embodiment of the present invention, the first impeller 21 mainly functions due to the centrifugation of blood in the accommodating chamber 11, the second impeller 22 mainly functions to assist the blood remaining in the bottom gap of the accommodating chamber, and the amount of remaining blood is small, and the second impeller 22 functions as an auxiliary. Based on the above description, designing the second impeller 22 to be smaller than the first impeller 21 prevents the second impeller 22 from being designed to be excessively large, destroying blood cells, or affecting the centrifugal vortex formed by the first impeller 21 in the accommodation 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 centrifugal piece 2 matches the inner contour of the receiving chamber 11. That is, the inner contour of the bottom of the receiving cavity 11 forms two continuous steps, so that the bottom of the housing 1 forms a coupler portion which is mated with the pair-assembled first and second magnets 321 and 322 in a "L" shape. At this time, the middle of the bottom of the shell 1 is designed to be a plane, and an inward recess does not need to be designed, so that the recess design is prevented from occupying redundant space. Under the same condition, 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 in 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 the first magnet 321 horizontally arranged at the bottom of the accommodating cavity and the repulsive force generated below the driven magnet 31 to 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, so that the centrifugal piece 2 is driven to rotate in the accommodating cavity 11, and the first impeller 21 and the second impeller 22 are driven to synchronously rotate 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, and aims at the problem that blood is easy to remain in the bottom gap of the accommodating cavity, and the centrifugal efficiency is improved by utilizing the design of the double-faced impeller and performing auxiliary centrifugation on the remaining blood at the lower part through the second impeller on the premise of not damaging blood cells.
As shown in fig. 2 and fig. 3, the embodiment of the invention discloses a magnetic suspension artificial heart pump, wherein at least one flow channel 7 which is longitudinally communicated is arranged in the middle of a centrifugal piece 2, a liquid flow from top to bottom is formed through the flow channel 7 in the centrifugation, and 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 part with the longitudinal through flow channel disclosed in the embodiment of the invention is as follows: introducing blood into the receiving chamber 11 through the blood inlet 4; through the first magnet 321 horizontally arranged at the bottom of the accommodating cavity and below the driven magnet 31, repulsive force is generated on the driven magnet 31, and the centrifugal piece 2, the first impeller 21 and/or the second impeller 22 are suspended in the accommodating cavity 11; 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, the centrifugal part 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 blood entering the accommodating cavity 11, and after centrifugation, the blood is led out through the blood outlet 5; during centrifugation, a flow from top to bottom is formed in the flow channel 7 due to the action of the first impeller 21 and/or the second impeller 22, and blood at the bottom of the accommodating chamber 11 is directed to the blood outlet.
In the embodiment of the invention, the longitudinal through flow channel is designed in the middle of the centrifugal piece, which is the same as the design purpose of the second impeller, and the problem that blood is easy to remain in the bottom gap of the accommodating cavity is solved. The design of the through flow channel is not easy to damage blood cells, and under the action of the impeller, the flow channel forms a liquid flow from top to bottom to lead the blood remained at the bottom of the accommodating cavity out of the blood outlet, so that the centrifugal efficiency is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A magnetically levitated artificial heart pump, comprising:
the blood collection device comprises a shell, a blood collection device and a blood collection device, wherein the shell is hollow inside to form an accommodating cavity, and the accommodating cavity is externally provided with a blood inlet and a blood outlet;
the centrifugal piece is positioned in the accommodating cavity, and a first impeller is arranged on one surface, close to the blood inlet, of the centrifugal piece;
a magnet, comprising: the moving magnet and the fixed magnet are embedded into the bottom of the shell, and the moving magnet is assembled 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 moving magnet, generates repulsive force to the moving magnet and suspends the centrifugal piece in the accommodating cavity; and
the second magnet is vertically arranged on the side face of the movable magnet and generates eccentric magnetic force on the movable magnet to drive the centrifugal piece to rotate in the accommodating cavity and drive the first impeller to rotate so as to centrifuge blood entering the accommodating cavity.
2. The magnetically levitated artificial heart pump of claim 1, wherein said blood inlet is located at an upper portion of said housing and said blood outlet is located at a side of said housing.
3. The magnetically levitated artificial heart pump of claim 2, wherein the moving magnet is a plurality of moving magnets, and the plurality of moving magnets are uniformly spaced along the circumferential direction under the first impeller to form a magnetically levitated rotating body, and a step is formed between the magnetically levitated rotating body and the first impeller.
4. The magnetically levitated artificial heart pump of claim 3, wherein said first and second magnets are assembled together in pairs and circumferentially distributed within said housing bottom as are said moving magnets.
5. The magnetically levitated artificial heart pump of claim 4, wherein said first and second magnets assembled in pairs are formed in a "" -shape.
6. The magnetically levitated artificial heart pump of claim 5, wherein the centrifugal member further includes a second impeller disposed proximate the bottom of the receiving chamber, the second impeller rotating to centrifuge blood at the bottom of the receiving chamber.
7. The magnetically levitated artificial heart pump of claim 6, wherein said moving magnet is embedded within the magnetically levitated rotating body between said first impeller and said second impeller.
8. The magnetically levitated artificial heart pump of claim 7, wherein the second impeller is smaller than the first impeller, and wherein the second impeller has a smaller centrifugal effect than the first impeller when synchronously rotated.
9. The magnetically levitated artificial heart pump of any one of claims 1 to 8, wherein an outer contour of the assembled moving magnet and centrifugal member matches an inner contour of the receiving cavity.
10. The magnetically levitated artificial heart pump of claim 9, wherein at least one flow channel is provided in the middle of said centrifugal member, and wherein a top-down flow is formed through said flow channel during centrifugation to flow blood at the bottom of said containing chamber to said blood outlet.
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 true CN112516454A (en) | 2021-03-19 |
| CN112516454B 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 |
| US20010039369A1 (en) * | 1999-12-14 | 2001-11-08 | Terentiev Alexandre N. | Blood pump system |
| 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 |
| US20140296615A1 (en) * | 2011-08-17 | 2014-10-02 | Novita Therapeutics, Llc | Blood pump systems and methods |
| US20160235900A1 (en) * | 2015-02-13 | 2016-08-18 | Thoratec Corporation | Impeller suspension mechanism for heart 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 |
-
2020
- 2020-11-26 CN CN202011356085.9A patent/CN112516454B/en active Active
Patent Citations (8)
| 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 |
| US20010039369A1 (en) * | 1999-12-14 | 2001-11-08 | Terentiev Alexandre N. | Blood pump system |
| 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 |
| US20140296615A1 (en) * | 2011-08-17 | 2014-10-02 | Novita Therapeutics, Llc | Blood pump systems and methods |
| US20160235900A1 (en) * | 2015-02-13 | 2016-08-18 | Thoratec Corporation | Impeller suspension mechanism for heart 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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| CN112516454B (en) | 2024-04-09 |
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