CN112933397A - Integrated dynamic liquid suspension blood pump - Google Patents
Integrated dynamic liquid suspension blood pump Download PDFInfo
- Publication number
- CN112933397A CN112933397A CN202110099816.4A CN202110099816A CN112933397A CN 112933397 A CN112933397 A CN 112933397A CN 202110099816 A CN202110099816 A CN 202110099816A CN 112933397 A CN112933397 A CN 112933397A
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- CN
- China
- Prior art keywords
- stator
- iron core
- centrifugal impeller
- blood pump
- stator iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000008280 blood Substances 0.000 title claims abstract description 37
- 210000004369 blood Anatomy 0.000 title claims abstract description 37
- 239000006194 liquid suspension Substances 0.000 title abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 239000012224 working solution Substances 0.000 claims 1
- 208000007536 Thrombosis Diseases 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000005345 coagulation Methods 0.000 abstract description 3
- 230000015271 coagulation Effects 0.000 abstract description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001483 mobilizing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Abstract
The invention discloses an integrated moving liquid suspension blood pump which comprises a centrifugal impeller, stator iron core teeth, a stator armature, a stator iron core yoke and a motor controller, wherein a rotor permanent magnet is arranged in the centrifugal impeller, the stator iron core teeth are arranged on the outer side of the centrifugal impeller, the stator iron core yoke is arranged at the bottom of the stator iron core teeth, the stator armature is arranged on the outer side of the side surface of the stator iron core teeth, and the stator armature is electrically connected with the motor controller. By providing a rotor permanent magnet in the centrifugal impeller, the impeller rotates at high speed under the action of a rotating magnetic field obtained by a stator electromagnetic field. The motor and the centrifugal rotor with the structure have no shaft and bearing parts, mechanical friction resistance is eliminated, the possibility of thrombus caused by dead angle coagulation of blood under centrifugal force is avoided, a permanent service life can be obtained theoretically, and the motor and the centrifugal rotor have irreplaceable super-strong functions in occasions requiring long-term maintenance-free reliable operation.
Description
Technical Field
The invention relates to the technical field of blood pumps, in particular to an integrated dynamic liquid suspension blood pump.
Background
The structure of the blood pump in the prior art is that the impeller of the blood pump is driven to rotate by the torque output by power equipment such as a micro motor or a hand-operated drive and the like through a transmission shaft of a centrifugal impeller, blood or a gas medium is driven to an outlet from an inlet of a pump shell, and the oxygen content in the blood is increased in the centrifugal pump. The structure of such centrifugal pumps can be summarized in two major components: the pump body and the power equipment, and most of the power equipment are motors.
The essential parts of the structure are a connecting shaft and a bearing between the pump body and the motor, but when the centrifugal pump is used for oxygenation of blood, centrifugal force is added to the blood when the centrifugal pump runs at high speed, the blood is easy to be solidified on the connecting shaft and the bearing, so that extra burden is caused, thrombus affects the use of the whole blood pump, and bottlenecks of the reliability, power density and efficiency of the whole system are caused.
Disclosure of Invention
Therefore, the invention provides an integrated dynamic liquid suspension blood pump, which aims to solve the problem that the blood pump in the prior art adopts a connecting shaft and a bearing, so that the centrifugal force is easily increased to blood, and the blood is easily solidified on the connecting shaft and the bearing, so that the use of the whole blood pump is influenced.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to the invention, the integrated moving liquid suspension blood pump comprises a centrifugal impeller, stator iron core teeth, a stator armature, a stator iron core yoke and a motor controller, wherein a rotor permanent magnet is arranged in the centrifugal impeller, the stator iron core teeth are arranged on the outer side of the centrifugal impeller, the stator iron core yoke is arranged at the bottom of the stator iron core teeth, the stator armature is arranged on the outer side of the side surface of the stator iron core teeth, and the stator armature is electrically connected with the motor controller.
Furthermore, the integrated dynamic liquid suspension blood pump also comprises a volute, and the centrifugal impeller is arranged inside the volute.
Further, the integrated dynamic liquid suspension blood pump further comprises a water inlet and a water outlet, wherein the water inlet is positioned above the centrifugal impeller, and the water outlet is positioned on the side part of the centrifugal impeller.
Further, the cross section of the centrifugal impeller is in an I shape.
Further, the rotor permanent magnet is disposed in a partial space of the bottom of the centrifugal impeller.
Further, the stator core yoke is in a disc shape.
Further, the water inlet is cylindrical in the vertical direction.
Further, the water outlet is cylindrical in the horizontal direction.
Further, the motor controller is a variable frequency motor controller.
The invention has the following advantages:
the centrifugal impeller is provided with the rotor permanent magnet, and the centrifugal impeller rotates at a high speed under the action of a rotating magnetic field obtained by a stator electromagnetic field. The motor and the centrifugal rotor with the structure have no shaft and bearing parts, mechanical friction resistance is eliminated, the possibility of thrombus caused by dead angle coagulation of blood under centrifugal force is avoided, a permanent service life can be obtained theoretically, and the motor and the centrifugal rotor have irreplaceable super-strong functions in occasions requiring long-term maintenance-free reliable operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic diagram illustrating an integrated pump for mobilizing suspended blood according to an exemplary embodiment;
in the figure: 11. a water outlet; 12. a volute; 13. a water inlet; 14. a centrifugal impeller; 15. a rotor permanent magnet; 16. stator core teeth; 17. a stator core yoke; 18. a stator armature; 19. a motor controller.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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 invention.
According to an embodiment of the present invention, an integrated hydrodynamic suspension blood pump is provided, as shown in fig. 1, including a centrifugal impeller 14, stator core teeth 16, a stator armature 18, a stator core yoke 17, and a motor controller 19, wherein a rotor permanent magnet 15 is disposed in the centrifugal impeller 14, the stator core teeth 16 are disposed outside the centrifugal impeller 14, the stator core yoke 17 is mounted at the bottom of the stator core teeth 16, the stator armature 18 is disposed outside the side surface of the stator core teeth 16, and the stator armature 18 is electrically connected to the motor controller 19.
The present invention rotates at a high speed under the action of a rotating magnetic field obtained by a stator electromagnetic field by providing a rotor permanent magnet 15 in a centrifugal impeller 14. The motor and the centrifugal rotor with the structure have no shaft and bearing parts, mechanical friction resistance is eliminated, the possibility of thrombus caused by dead angle coagulation of blood under centrifugal force is avoided, a permanent service life can be obtained theoretically, and the motor and the centrifugal rotor have irreplaceable super-strong functions in occasions requiring long-term maintenance-free reliable operation.
The integrated dynamic liquid suspension blood pump also comprises a volute 12, and the centrifugal impeller 14 is arranged inside the volute 12. The integrated dynamic liquid suspension blood pump further comprises a water inlet 13 and a water outlet 11, wherein the water inlet 13 is positioned above the centrifugal impeller 14, and the water outlet 11 is positioned on the side of the centrifugal impeller 14. Proper clearance needs to be maintained between the stator core teeth 16 and the magnetic poles of the rotor, and dry-wet separation is achieved by the volute 12.
The centrifugal impeller 14 is i-shaped in cross section. The rotor permanent magnet 15 is disposed in a partial space of the bottom of the centrifugal impeller.
The stator core yoke 17 is in the shape of a circular disk. The stator core teeth 16 are bent by 90 degrees, so that the originally flat structure of the motor is changed into a cylindrical structure.
The water inlet 13 is formed in a cylindrical shape in the vertical direction. The water outlet 11 is cylindrical in the horizontal direction. The flow of liquid from the inlet 13 to the outlet 11 is achieved.
The motor controller 19 is a variable frequency motor controller. The motor is designed as a permanent magnet synchronous high-speed motor, the maximum rotating speed is 8000 rpm, a frequency converter is used for soft start and controlling the rotating speed, and the motor runs stably, efficiently and silently through reasonable electromagnetic design.
The invention can combine the rotor structure of the motor and the centrifugal impeller 14 into a whole, the motor and the centrifugal pump share one integrated rotor, and the integrated rotor is in a floating state in work and does not generate friction contact with any part, and the integrated rotor structure has no bearing moving liquid suspension, thereby eliminating the friction loss and fault points of the bearing, reducing the volume and the weight, improving the overall energy efficiency, reducing the operation noise, greatly reducing the cost in batch production, and greatly improving the product performance and the economic benefit.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides an integration working solution suspension blood pump which characterized in that, includes centrifugal impeller, stator iron core tooth, stator armature, stator iron core yoke and machine controller, wherein, be provided with the rotor permanent magnet in the centrifugal impeller, the outside of centrifugal impeller is provided with stator iron core tooth, install the bottom of stator iron core tooth the stator iron core yoke, the side outside of stator iron core tooth is equipped with the stator armature, the stator armature with the machine controller electricity is connected.
2. The integrated hydrodynamic suspension blood pump of claim 1, further comprising a volute, the centrifugal impeller being disposed inside the volute.
3. The integrated hydrodynamic suspension blood pump of claim 2, further comprising a water inlet and a water outlet, wherein the water inlet is located above the centrifugal impeller and the water outlet is located at a side of the centrifugal impeller.
4. The integrated hydrodynamic suspension blood pump of claim 1, wherein the centrifugal impeller is i-shaped in cross-section.
5. The integrated hydrodynamic suspension blood pump according to claim 4, wherein the rotor permanent magnet is disposed in a partial space at the bottom of the centrifugal impeller.
6. The integrated hydrodynamic suspension blood pump of claim 1, wherein the stator core yoke is disc-shaped.
7. The integrated hydrodynamic suspension blood pump of claim 3, wherein the water inlet is vertically cylindrical.
8. The integrated hydrodynamic suspension blood pump of claim 3, wherein the water outlet is horizontally cylindrical.
9. The integrated hydrodynamic suspension blood pump of claim 1, wherein the motor controller is a variable frequency motor controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110099816.4A CN112933397A (en) | 2021-01-25 | 2021-01-25 | Integrated dynamic liquid suspension blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110099816.4A CN112933397A (en) | 2021-01-25 | 2021-01-25 | Integrated dynamic liquid suspension blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112933397A true CN112933397A (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110099816.4A Pending CN112933397A (en) | 2021-01-25 | 2021-01-25 | Integrated dynamic liquid suspension blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112933397A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207518385U (en) * | 2017-12-07 | 2018-06-19 | 上海宇塚电子科技有限公司 | Artificial heart disc type electric machine winding arrangement |
| WO2020220857A1 (en) * | 2019-04-29 | 2020-11-05 | 苏州苏磁智能科技有限公司 | High-efficiency magnetic coupling and levitation pump |
| CN112121249A (en) * | 2020-10-21 | 2020-12-25 | 山东大学 | In-vitro centrifugal magnetic suspension artificial heart pump and use method |
-
2021
- 2021-01-25 CN CN202110099816.4A patent/CN112933397A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207518385U (en) * | 2017-12-07 | 2018-06-19 | 上海宇塚电子科技有限公司 | Artificial heart disc type electric machine winding arrangement |
| WO2020220857A1 (en) * | 2019-04-29 | 2020-11-05 | 苏州苏磁智能科技有限公司 | High-efficiency magnetic coupling and levitation pump |
| CN112121249A (en) * | 2020-10-21 | 2020-12-25 | 山东大学 | In-vitro centrifugal magnetic suspension artificial heart pump and use method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20210611 |