CN205698666U - External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump - Google Patents
External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump Download PDFInfo
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- CN205698666U CN205698666U CN201620190847.5U CN201620190847U CN205698666U CN 205698666 U CN205698666 U CN 205698666U CN 201620190847 U CN201620190847 U CN 201620190847U CN 205698666 U CN205698666 U CN 205698666U
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Abstract
The utility model belongs to medical instruments field, relates to a kind of artificial heart auxiliary device for treating the heart failure that acute cardiogenic shock causes, especially a kind of external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump.The utility model uses bearing-free magnetic liquid suspension technology to instead of conventional centrifugal blood pump mechanical bearing and drives, vane rotor is suspended in magnetic field without any Mechanical Contact, and position and the speed of vane rotor is accurately regulated by digital signal processor system, farthest reduce the destruction to haemocyte and blood formed element (blood platelet, clotting factor etc.).Use the method for heparin coating simultaneously on blood pump inwall and vane rotor surface, further reduce the use of anticoagulant in blood coagulation and thrombosis and supporting process, thus decrease the complication of patient's intraoperative hemorrhage.This system has simple in construction, operating is reliable, maintain easily and the features such as stepless time adjustment, may be used for the heart failure being caused by the acute cardiogenic shock that a variety of causes causes, merge use with oxygenator, it is possible to be applied to auxiliary circulation and blood oxygenation in extracorporal circulatory system membrane lung (ECMO) treatment.
Description
Technical field:
The invention belongs to medical instruments field, relate to a kind of external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump dress
Put.
Background technology:
The incidence of disease of angiocardiopathy becomes ascendant trend year by year, cardiogenic shock, and it is dead that cardiac failure belongs to critical sufferer
Rate of dying is high, and no matter artificial ventricle's servicing unit is as remedy measures, or transitional support the as heart transplant all has
Highly important clinical value.
Artificial ventricle's servicing unit, through the development of decades, experienced by pneumatic pump of beating, mechanical bearing formula centrifugal pump, arrives
Current state-of-the art magnetic suspension centrifugal blood pump.Artificial ventricle's servicing unit is divided into the short-term for the treatment of acute cardiogenic shock non-in vitro
Implanted servicing unit, and treatment latter stage heart failure be chronically implanted formula servicing unit.Current domestic research and development are to plant for a long time mostly
Enter formula servicing unit, but this be chronically implanted formula servicing unit, from cost and practicality, be not all suitable for acute heart source
Property the caused invertibity heart failure of shock treatment.
Content of the invention:
It is an object of the invention to provide a kind of stable performance, volume is little, low in energy consumption, the external non-built-in mode magnetic of simple in construction
Suspension ventricle assists centrifugal blood pump.
The object of the present invention is achieved like this, and the external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump of the present invention is
By blood pump shell, liquid inlet stream mouth, magnetic levitation impeller rotor, rotor magnetic ring, liquid discharge head piece, bearing-free motor, motor coil
Collectively constitute.For avoiding blood coagulation and thrombosis, the pedestal of magnetic levitation impeller rotor is the design of permanent magnetism hollow ring, in its pedestal
Portion arranges described rotor magnetic ring, uses a kind of more effectively anti-at pump housing endophragm and the outer surface of magnetic levitation impeller rotor simultaneously
Solidifying antithrombotic method heparin coating method, is wherein provided with described liquid inlet stream mouth and liquid on described blood pump shell
Go out head piece, and described magnetic levitation impeller rotor and rotor magnetic ring be set in the inside of its blood pump shell part protruding below,
And the outside of described blood pump shell part protruding below is the respective openings part phase configuration with above-mentioned bearing-free motor；Institute
It is provided with above-mentioned motor coil on the bearing-free motor stated.
This blood pump is electric drive, uses the centrifugal pump of bearing-free motor technology.After bearing-free motor is energized, electric current leads to
Cross motor coil and produce the electromagnetic field rotating, due to magnetic fields, make permanent magnetic ring-shaped vane rotor rotate in liquid in pump, outstanding
Float in pump in liquid.Vane rotor is suspended in magnetic field with pump inwall without any Mechanical Contact, and it is centrifugal that vane rotor produces
Blood is axially sucked blood pump by gravitation from the liquid inlet stream mouth being positioned in the middle part of the pump housing, and blood is by being positioned under the influence of centrifugal force
The liquid discharge head piece of blood pump periphery is radially discharged, it is achieved pump blood process.
It during pump blood, is positioned at the radial position of the position sensor control vane rotor of bearing-free motor, control
Circuit regulation magnetic field makes vane rotor be always positioned at center.Electronic Control accurately regulates vane rotor radial position and rotating speed,
The inclination of axial location and vane rotor also passively regulates to be in stablizes.
Vane rotor pedestal uses the design of permanent magnetism hollow ring, when rotor suspension rotates in blood, by liquid inlet stream
The blood that mouth sucks, a part axially downwardly passes through the vane rotor magnet ring center of hollow, then from the outside axle of vane rotor magnet ring
To flowing up, finally rotate under the effect of the centrifugal force producing at vane rotor, radially from the liquid discharge head piece of blood pump periphery
Discharge (Fig. 3).The blood flow type of flow in this pump, creates the souring overall to vane rotor during pump blood,
Prevent blood coagulation and thrombosis.Simultaneously whole blood pump inwall and vane rotor outer surface all use heparin coating method, enter one
Step avoids the formation of blood coagulation and thrombus.
It is an advantage of the current invention that the present invention uses bearing-free magnetic liquid suspension technology to instead of conventional centrifugal blood pump mechanical axis
Holding driving, vane rotor is suspended in without any Mechanical Contact in magnetic field, and is accurately regulated leaf by digital signal processor system
The position of wheel rotor and speed, farthest reduce to haemocyte and blood formed element (blood platelet, clotting factor etc.)
Destruction.The employing of heparin coating method on blood pump inwall and vane rotor surface simultaneously, further reduces blood coagulation and thrombus
The use of anticoagulant in formation and supporting process, thus decrease the complication of patient's intraoperative hemorrhage.This system has knot
Structure is simple, and operating is reliable, maintains easily and the feature such as stepless time adjustment, may be used for by a variety of causes cause acute cardiogenic
Suffer a shock caused heart failure, merge use with oxygenator, it is possible to be applied to auxiliary in extracorporal circulatory system membrane lung (ECMO) treatment
Circulation and blood oxygenation.
Brief description:
Fig. 1 is external non-built-in mode magnetic suspension ventricle provided by the present invention auxiliary centrifugal blood pump sectional view.
Fig. 2 is the magnetic suspension centrifugal blood pump pump housing provided by the present invention and vane rotor schematic three dimensional views.
Fig. 3 magnetic suspension provided by the present invention centrifugal blood pump blood flow schematic diagram.
In figure, 1 blood pump shell；2 liquid inlet stream mouths；3 magnetic levitation impeller rotors；4 rotor magnetic rings；5 liquid discharge head pieces；6 nothings
Bearing electric machine；7 motor coils；8 blood flow paths.
Detailed description of the invention:
As it is shown in figure 1, provided by the present invention is a kind of external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump, mainly
Including blood pump shell 1；Liquid inlet stream mouth 2；Magnetic levitation impeller rotor 3；Rotor magnetic ring 4；Liquid discharge head piece 5；Bearing-free motor 6；
Motor coil 7 collectively constitutes.In order to avoid the formation of blood coagulation and thrombus, magnetic levitation impeller rotor 3 pedestal uses permanent magnetism hollow ring
Shape designs (as shown in the figure), and its base interior arranges described rotor magnetic ring 4, and blood pump inwall and whole magnetic levitation impeller turn simultaneously
The outer surface of son 3 uses heparin coating method.On described blood pump shell 1, it is wherein provided with described liquid inlet stream mouth 2 He
Liquid discharge head piece 5, and the base of described magnetic levitation impeller rotor 3 is set in the inside of its blood pump shell 1 part protruding below
The rotor magnetic ring 4 of seating portion and corresponding configuration, and the outside of described blood pump shell 1 part protruding below is shaftless with above-mentioned
Respective openings part phase configuration (as shown in the figure) of bearing motor 6；It is provided with above-mentioned motor coil on described bearing-free motor 6
7。
After bearing-free motor 6 switches on power, when electric current is by motor coil 7, produce the electromagnetic field rotating, in magnetic field
Under effect, permanent magnetic ring-shaped magnetic levitation impeller rotor 3 is started by rotor magnetic ring 4 to rotate, and produces centrifugal force and is suspended in pump
In blood.In rotary course, (shaftless) vane rotor 3 and the blood pump inwall of suspension produce without any Mechanical Contact, vane rotor 3
Blood is axially sucked blood pump by raw centrifugal gravitation from the liquid inlet stream mouth 2 of blood pump, under the influence of centrifugal force, blood by
The liquid discharge head piece 5 being positioned at blood pump periphery is radially discharged, and the radial position of vane rotor 3 and rotating speed are passed through position by control circuit
Position sensor in electric-motor pump groove, is regulated accurately, at the axial location of vane rotor 3 and inclination also passive regulation
In stable rotation.Owing to this magnetic suspension blood pump does not exist mechanical wear and frictional heat, reduce and haemocyte and blood are had
Form the mechanical damage of point (blood platelet, clotting factor etc.), serve good blood conservation effect.
Due to the hollow ring design of vane rotor 3, part axially flows into the blood of blood pump, axially downwardly passes through hollow
Vane rotor magnet ring center, more axially upwardly move from rotor magnetic ring 4 is outside, and under the influence of centrifugal force, radially from blood pump
The liquid discharge head piece 5 of periphery is discharged, this type of flow 8 (as shown in Figure 3) washing away vane rotor 3, and blood pump inwall
Use heparin coating method with vane rotor 3 outer surface, blood coagulation and thrombus will not be produced.
Magnetic levitation technology in the present invention, the combination of hollow ring permanent magnetism vane rotor and heparin coating method, add
The stability of this external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump device, dependable with function, it is particularly well-suited to
Treatment acute myocardial infarction, the heart failure that after severe myocarditis, and openheart surgery, complicated with acute cardiogenic shock is caused.
Claims (1)
1. an external non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump, it includes blood pump shell (1), liquid inlet stream mouth (2),
Magnetic levitation impeller rotor (3), rotor magnetic ring (4), liquid discharge head piece (5), bearing-free motor (6), and motor coil (7), wherein
Magnetic levitation impeller rotor (3) pedestal is permanent magnetism hollow ring, and its base interior arranges described rotor magnetic ring (4), blood pump simultaneously
The outer surface of inwall and whole magnetic levitation impeller rotor (3) uses heparin coating method, wherein on described blood pump shell (1)
It is provided with described liquid inlet stream mouth (2) and liquid discharge head piece (5), and interior in its blood pump shell (1) part protruding below
Portion arranges the base part of described magnetic levitation impeller rotor (3) and the rotor magnetic ring (4) of corresponding configuration, and outside described blood pump
The outside of shell (1) part protruding below is the respective openings part phase configuration with above-mentioned bearing-free motor (6)；Described is shaftless
It is provided with above-mentioned motor coil (7) on bearing motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620190847.5U CN205698666U (en) | 2016-03-14 | 2016-03-14 | External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620190847.5U CN205698666U (en) | 2016-03-14 | 2016-03-14 | External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump |
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| Publication Number | Publication Date |
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| CN205698666U true CN205698666U (en) | 2016-11-23 |
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| CN201620190847.5U Active CN205698666U (en) | 2016-03-14 | 2016-03-14 | External non-built-in mode magnetic suspension ventricle auxiliary centrifugal blood pump |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107296988A (en) * | 2017-06-19 | 2017-10-27 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | On-bladed blood pump |
| CN107519549A (en) * | 2017-09-30 | 2017-12-29 | 清华大学天津高端装备研究院 | A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller |
| CN110496258A (en) * | 2018-05-18 | 2019-11-26 | 江苏心佑医疗器械有限公司 | Forth generation artificial heart Permanent-magnet bearing rotary pump |
| CN110585502A (en) * | 2019-09-03 | 2019-12-20 | 中国医学科学院阜外医院 | In vitro short-medium-period magnetic suspension centrifugal blood pump |
| CN110711275A (en) * | 2019-11-18 | 2020-01-21 | 苏州心擎医疗技术有限公司 | Motor for extracorporeal blood pump, and extracorporeal blood pump system |
| CN111282060A (en) * | 2020-03-18 | 2020-06-16 | 上海市东方医院（同济大学附属东方医院） | Extracorporeal membrane oxygenation device |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2020-07-13 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
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2016
- 2016-03-14 CN CN201620190847.5U patent/CN205698666U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| CN107296988A (en) * | 2017-06-19 | 2017-10-27 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | On-bladed blood pump |
| CN107519549A (en) * | 2017-09-30 | 2017-12-29 | 清华大学天津高端装备研究院 | A kind of new Single Degree of Freedom Magnetic suspension centrifugal impeller |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN110496258A (en) * | 2018-05-18 | 2019-11-26 | 江苏心佑医疗器械有限公司 | Forth generation artificial heart Permanent-magnet bearing rotary pump |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| CN110585502A (en) * | 2019-09-03 | 2019-12-20 | 中国医学科学院阜外医院 | In vitro short-medium-period magnetic suspension centrifugal blood pump |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN110711275B (en) * | 2019-11-18 | 2021-04-27 | 苏州心擎医疗技术有限公司 | Motor for extracorporeal blood pump, and extracorporeal blood pump system |
| CN110711275A (en) * | 2019-11-18 | 2020-01-21 | 苏州心擎医疗技术有限公司 | Motor for extracorporeal blood pump, and extracorporeal blood pump system |
| CN111282060A (en) * | 2020-03-18 | 2020-06-16 | 上海市东方医院（同济大学附属东方医院） | Extracorporeal membrane oxygenation device |
| US11964145B2 (en) | 2020-07-13 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
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