CN107519549A - A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller - Google Patents
A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller Download PDFInfo
- Publication number
- CN107519549A CN107519549A CN201710923463.9A CN201710923463A CN107519549A CN 107519549 A CN107519549 A CN 107519549A CN 201710923463 A CN201710923463 A CN 201710923463A CN 107519549 A CN107519549 A CN 107519549A
- Authority
- CN
- China
- Prior art keywords
- cavity
- boss
- shell
- magnetic suspension
- blade
- 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
- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 208000002925 dental caries Diseases 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims description 5
- 239000008280 blood Substances 0.000 abstract description 11
- 210000004369 blood Anatomy 0.000 abstract description 11
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010018910 Haemolysis Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 230000008588 hemolysis Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Classifications
-
- 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
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart 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
-
- 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
Abstract
The invention provides a kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller, including stationary parts and vane rotor, stationary parts is shell, shell is provided with pump inlet and pump discharge, the vane rotor includes setting the boss of blade and cylinder inside the housing, circumferencial direction of the blade along boss upper surface is uniformly arranged, the through hole of cylinder is offered at the center of boss, kuppe is provided with above through hole, the edge of kuppe and the leading edge of blade connect, circumferencial direction of the outside of through hole along boss offers some first cavitys, first magnet is installed in the first cavity；Pallet is provided with below shell, some second cavitys is offered inside it, the second magnet, first cavity and corresponding setting above and below the second cavity is installed in the second cavity.Receded disk impeller of the present invention can ensure that blood is run in loop, avoid lubricating, seal and blood pollution problem.
Description
Technical field
The invention belongs to medical instruments field, more particularly, to a kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller.
Background technology
The serious heart failure incidence of disease rises year by year, but is available for that the heart donor of transplanting is considerably less, and artificial heart can be solved effectively
The problem of certainly donor lacks, attended class from operation principle and be divided into TAH and ventricular assist device.Artificial heart is most important
It is impeller, the problem of facing maximum is haemolysis caused by heart pump operation process and blood coagulation problem.
The development experience of artificial heart beating pump, the rotary pump and magnetic suspension pump for having axle.Magnetic suspension pump can be solved effectively
Certainly destruction and sealing problem of the mechanical bearing to haemocyte, including magnetically levitated centrifugal pump and magnetic levitation axial flow pump.
The content of the invention
The present invention relates to a kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller, the impeller using single-degree-of-freedom magnetic suspension from
Heart pump is designed, the conventional centrifugal that compares impeller, and rotor part is placed with pump housing, ensureing blood in loop completely
Operation, avoid lubricating, seal and blood pollution problem.To reach above-mentioned purpose, the technical scheme is that being achieved in that
's：
A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller, including stationary parts and vane rotor, the stationary parts
For shell, the roof of the shell offers import, and side wall offers outlet, and the vane rotor includes setting inside the housing
Blade and cylinder boss, circumferencial direction of the blade along boss upper surface is uniformly arranged, at the center of the boss
The through hole of cylinder is offered, kuppe, the edge of the kuppe and the leading edge of blade are provided with above the through hole
Connection, the circumferencial direction of the outside of the through hole along boss offer some first cavitys, and the is provided with first cavity
One magnet；Pallet is provided with below the housing, some second cavitys is offered inside it, is provided with second cavity
Second magnet, first cavity and corresponding setting above and below the second cavity.
Further, the surface of the kuppe is by top rounding off to its edge, and top to bottom is transversal
Area becomes larger.
Further, the quantity of the blade is 2-6.
Relative to prior art, new Single Degree of Freedom Magnetic suspension centrifugal impeller of the present invention has the advantage that：
New Single Degree of Freedom Magnetic suspension centrifugal impeller of the present invention is designed using single-degree-of-freedom magnetically levitated centrifugal pump,
The conventional centrifugal that compares impeller, rotor part are placed with shell, ensureing that blood is run in loop, avoid moistening completely
Sliding, sealing and blood pollution problem.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the new Single Degree of Freedom Magnetic suspension centrifugal impeller sectional view described in the embodiment of the present invention；
Fig. 2 is vane rotor schematic diagram in the new Single Degree of Freedom Magnetic suspension centrifugal impeller described in the embodiment of the present invention；
Fig. 3 shows for the bottom surface of impeller boss in the new Single Degree of Freedom Magnetic suspension centrifugal impeller described in the embodiment of the present invention
It is intended to.
Description of reference numerals：
1st, shell；2nd, import；3rd, outlet, 4, blade；5th, boss；6th, kuppe；8th, the first magnet；9th, pallet；10th, second
Magnet；11st, through hole；12nd, the first cavity；
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller, including stationary parts and vane rotor, it is quiet
Stop part is shell 1, and the roof of shell 1 offers import 2, and side wall offers outlet 3, vane rotor include be arranged on shell
Boss 5 and blade 4 inside 1, boss 5 are along the circumferential direction uniformly arranged in cylinder, blade 4, and quantity is 2-6.Reference picture
3, offer the through hole 11 of cylinder at the center of boss 5, the circumferencial direction of the outside of through hole 11 along boss 5 offers some the
One cavity 12, the first magnet 8 is installed in the first cavity 12, and be encapsulated in the first cavity 12；It is straight where the leading edge of blade 4
Line overlaps with the straight line where the inwall of through hole 11.The lower section of shell 1 is provided with pallet 9, and pallet 9 is in cylinder, its internal edge
Circumferencial direction offers some second cavitys, the second magnet 10 is provided with second cavity, and be encapsulated in the second cavity；
First cavity 12 and corresponding setting above and below the second cavity.
Reference picture 2, the top of the cylindrical through hole 11 opened up at the center of boss 5 are provided with kuppe 6, kuppe 6
Edge be connected with the leading edge of blade 4.The surface of kuppe 6 is by top rounding off to its edge, and top to bottom
Cross-sectional area become larger.
When outer power-equipment, such as motor, when driving the rotation of pallet 9, the effect of external magnetic field causes vane rotor to rotate.
In vane rotor rotation process, blood, which can integrally include kuppe 6 to vane rotor, has a upward buoyancy lift to act on, the work
With causing rotor to rise certain distance, it is avoided that between vane rotor and shell 1 and Mechanical Contact occurs, ensure vane rotor outside
Suspension in shell 1.
In the process of running, blood enters in shell 1 from import 2, the centrifugal force caused by vane rotor rotates, blood
Flow direction outlet 3, completes blood flow process.
The surface of kuppe 6 is gone out to become larger in uniformly smooth streamlined by the cross-sectional area at top to bottom, this
The shape of sample be avoided that operation in mismatched due to solid shape caused by grinding and destruction of the solid to blood；The single-degree-of-freedom
Magnetically levitated centrifugal pump designs, and is avoided that the lubrication and sealing problem of conventional centrifugal impeller, blood is run in loop,
Blood is avoided to pollute.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (4)
- A kind of 1. new Single Degree of Freedom Magnetic suspension centrifugal impeller, it is characterised in that：The receded disk impeller includes stationary parts And vane rotor, the stationary parts are shell (1), the roof of the shell (1) offers import (2), and side wall offers out Mouth (3), the vane rotor include being arranged on the internal blade (4) of shell (1) and the boss (5) of cylinder, the blade (4) It is uniformly arranged along the circumferencial direction of boss (5) upper surface, the through hole (11) of cylinder is offered at the center of the boss (5), Kuppe (6) is provided with above the through hole (11), the edge of the kuppe (6) is connected with the leading edge of blade (4), institute State circumferencial direction of the outside of through hole (11) along boss (5) and offer some first cavitys (12), first cavity (12) is interior First magnet (8) is installed；Pallet (9) is provided with below the shell (1), offers some second cavitys, institute inside it State and the second magnet (10) is installed in the second cavity, first cavity (12) and corresponding setting above and below the second cavity.
- 2. new Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1, it is characterised in that：The kuppe (6) surface is by top rounding off to its edge, and the cross-sectional area of top to bottom becomes larger.
- 3. new Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1, it is characterised in that：The blade (4) Quantity be 2-6.
- 4. new Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1, it is characterised in that：The pallet (9) In cylinder, its circumferential direction inside direction opens up some second cavitys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923463.9A CN107519549A (en) | 2017-09-30 | 2017-09-30 | A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923463.9A CN107519549A (en) | 2017-09-30 | 2017-09-30 | A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107519549A true CN107519549A (en) | 2017-12-29 |
Family
ID=60683990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923463.9A Pending CN107519549A (en) | 2017-09-30 | 2017-09-30 | A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107519549A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010970A (en) * | 2018-06-15 | 2018-12-18 | 杭州光启医疗科技发展有限公司 | Pump installation for department of cardiovascular surgery |
| CN110947040A (en) * | 2019-12-18 | 2020-04-03 | 山东大学 | Extracorporeal circulation blood pump and method |
| CN112302954A (en) * | 2020-05-27 | 2021-02-02 | 中山市羽顺热能技术设备有限公司 | Hanging stove magnetic suspension water pump |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017103A (en) * | 1989-03-06 | 1991-05-21 | St. Jude Medical, Inc. | Centrifugal blood pump and magnetic coupling |
| US6171078B1 (en) * | 1997-09-04 | 2001-01-09 | Sulzer Electronics Ag | Centrifugal pump |
| JP2002089491A (en) * | 2000-09-11 | 2002-03-27 | Jms Co Ltd | Turbo blood pump |
| US20030039544A1 (en) * | 2001-08-10 | 2003-02-27 | Kenji Yamazaki | Blood pump |
| US20040047753A1 (en) * | 2000-03-27 | 2004-03-11 | David Horvath | Ventricular assist system secondary impeller |
| CN101041091A (en) * | 2007-04-25 | 2007-09-26 | 上海大学 | Magnetic suspension manual heart pump |
| US20070280841A1 (en) * | 2006-01-13 | 2007-12-06 | Larose Jeffrey A | Hydrodynamic thrust bearings for rotary blood pumps |
| CN102247628A (en) * | 2010-05-17 | 2011-11-23 | 北京天高智机技术开发公司 | Implantable magnetic liquid suspension centrifugal blood pump |
| CN102891553A (en) * | 2011-07-20 | 2013-01-23 | 莱维特朗尼克斯有限责任公司 | Magnetic rotor and rotation pump with a magnetic rotor |
| CN203609698U (en) * | 2013-10-23 | 2014-05-28 | 北京航天控制仪器研究所 | Implantable type left ventricular auxiliary system |
| CN104826183A (en) * | 2015-05-26 | 2015-08-12 | 山东大学 | Blood flow guide device of centrifugal magnetic suspension artificial heart pump |
| CN205055004U (en) * | 2015-09-25 | 2016-03-02 | 济南大学 | Adopt artifical blood pump of hydraulic suspension bearing |
| CN105641762A (en) * | 2016-03-14 | 2016-06-08 | 正仁（北京）医疗仪器有限公司 | In-vitro non-implantable maglev heart chamber assisting centrifugal blood pump |
| CN205698666U (en) * | 2016-03-14 | 2016-11-23 | 正仁（北京）医疗仪器有限公司 | External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump |
| CN106574628A (en) * | 2014-06-17 | 2017-04-19 | 同心医疗器械（美国）有限公司 | Centrifugal blood pump impeller and flow path |
| CN209361471U (en) * | 2017-09-30 | 2019-09-10 | 清华大学天津高端装备研究院 | A kind of novel Single Degree of Freedom Magnetic suspension centrifugal impeller |
-
2017
- 2017-09-30 CN CN201710923463.9A patent/CN107519549A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017103A (en) * | 1989-03-06 | 1991-05-21 | St. Jude Medical, Inc. | Centrifugal blood pump and magnetic coupling |
| US6171078B1 (en) * | 1997-09-04 | 2001-01-09 | Sulzer Electronics Ag | Centrifugal pump |
| US20040047753A1 (en) * | 2000-03-27 | 2004-03-11 | David Horvath | Ventricular assist system secondary impeller |
| JP2002089491A (en) * | 2000-09-11 | 2002-03-27 | Jms Co Ltd | Turbo blood pump |
| US20030039544A1 (en) * | 2001-08-10 | 2003-02-27 | Kenji Yamazaki | Blood pump |
| US20070280841A1 (en) * | 2006-01-13 | 2007-12-06 | Larose Jeffrey A | Hydrodynamic thrust bearings for rotary blood pumps |
| CN101041091A (en) * | 2007-04-25 | 2007-09-26 | 上海大学 | Magnetic suspension manual heart pump |
| CN102247628A (en) * | 2010-05-17 | 2011-11-23 | 北京天高智机技术开发公司 | Implantable magnetic liquid suspension centrifugal blood pump |
| CN102891553A (en) * | 2011-07-20 | 2013-01-23 | 莱维特朗尼克斯有限责任公司 | Magnetic rotor and rotation pump with a magnetic rotor |
| CN203609698U (en) * | 2013-10-23 | 2014-05-28 | 北京航天控制仪器研究所 | Implantable type left ventricular auxiliary system |
| CN106574628A (en) * | 2014-06-17 | 2017-04-19 | 同心医疗器械（美国）有限公司 | Centrifugal blood pump impeller and flow path |
| CN104826183A (en) * | 2015-05-26 | 2015-08-12 | 山东大学 | Blood flow guide device of centrifugal magnetic suspension artificial heart pump |
| CN205055004U (en) * | 2015-09-25 | 2016-03-02 | 济南大学 | Adopt artifical blood pump of hydraulic suspension bearing |
| CN105641762A (en) * | 2016-03-14 | 2016-06-08 | 正仁（北京）医疗仪器有限公司 | In-vitro non-implantable maglev heart chamber assisting centrifugal blood pump |
| CN205698666U (en) * | 2016-03-14 | 2016-11-23 | 正仁（北京）医疗仪器有限公司 | External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump |
| CN209361471U (en) * | 2017-09-30 | 2019-09-10 | 清华大学天津高端装备研究院 | A kind of novel Single Degree of Freedom Magnetic suspension centrifugal impeller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109010970A (en) * | 2018-06-15 | 2018-12-18 | 杭州光启医疗科技发展有限公司 | Pump installation for department of cardiovascular surgery |
| CN110947040A (en) * | 2019-12-18 | 2020-04-03 | 山东大学 | Extracorporeal circulation blood pump and method |
| CN112302954A (en) * | 2020-05-27 | 2021-02-02 | 中山市羽顺热能技术设备有限公司 | Hanging stove magnetic suspension water pump |
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