CN105797226A - Magnetic suspension roller type heart pump - Google Patents
Magnetic suspension roller type heart pump Download PDFInfo
- Publication number
- CN105797226A CN105797226A CN201610262567.5A CN201610262567A CN105797226A CN 105797226 A CN105797226 A CN 105797226A CN 201610262567 A CN201610262567 A CN 201610262567A CN 105797226 A CN105797226 A CN 105797226A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- tingia
- drives
- pump
- blood
- 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
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
- A61M60/20—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
- A61M60/40—Details relating to driving
-
- 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
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/12—Blood circulatory system
Abstract
The invention belongs to the field of biomedical engineering, and relates to a magnetic suspension roller type heart pump, in particular to a magnetic suspension type driving tooth blade pump system for extracorporeal circulation. The system is composed of a driver (1), a pump body (2), a permanent magnet slave driving ring (3), an impeller device (4) and tooth blades (5). A permanent magnet is an annular permanent magnet in multi-antipode radial magnetization. A radial tooth bade-shaped impeller is arranged in the blood pump body. The current of a coil in the driver changes to generate a changing magnetic field so as to drive the annular permanent magnet to rotate in a non-contact mode, and then the permanent magnet drives the impeller device to rotate so as to supply blood to a human body. According to the system, the rotating magnetic field is adopted to directly provide kinetic energy for the blood pump, the blood pump body does not emit heat, the tooth blade pump can reduce backflow and increase the flow, and rolling is omitted so that damage to blood can be avoided.
Description
Technical field
The present invention relates to a kind of extracorporeal circulation electromagnetic levitation type and drive tingia pumping system, belong to biomedical engineering field.
Background technology
Medical Cardiopulmonary Bypass is the necessary equipment in cardiac operation, has wide application at present by constantly improving in medical treatment.Blood pump is wherein medical equipment for blood perfusion, and its structure is made up of pump head, main frame.Pump head is the parts directly contacting blood, is a kind of disposable apparatus.In current extracorporeal circulation, the blood pump for irrigating purpose is mainly rolling-type and centrifugal two kinds.Both equipment is respectively arranged with advantage and the defect of oneself.
As described in CN201045340 roller rolling press pump, occlusion pump advantage is that groundwater increment is stable, and perfusion will not be produced impact by load resistance, and its shortcoming is that Blood damage is relatively big, can only continuously run several hours；When structure bulky runs, apart from patient, therefore pipe-line system is long farther out, and priming volume is bigger.
As CN104373357 medical magnetic based on log spiral impeller and sliding bearing drives described in centrifugal pump, centrifugal pump advantage is that Blood damage is less, but owing to blood flow rate is high, blood flow also results in a certain amount of damage with the friction avoided；Reduce pipe-line system priming volume to reduce.Its shortcoming is to Peripheral resistance sensitive, irrigates less stable.
In CN104373356 described in semi-magnetic suspension centrifugal pump, its magnetic suspension driving is dependent on active rotation magnet ring and is rotated by magnetic coupling principle with driven magnet ring, its advantage is non-contact type transmission, it is possible to reduce mechanical friction and conduction of heat are thus reducing Blood damage.Shortcoming is that drivewheel quality is big, during high speed rotating due to after magnetic field phenomenon cause throwing switch, owing to magnetic torsion deficiency drives instability during the slow-speed of revolution.
Summary of the invention
For overcoming above-mentioned drawback, inherit advantage, the invention provides a kind of extracorporeal circulation electromagnetic levitation type and drive tingia pumping system, leakage blood is reduced by magnetic coupling non-contact type transmission, reduce pipeline and reduce priming volume, tingia engagement pushes the mini-flow under blood reduces the impact of load resistance without backflow and is capable of the slow-speed of revolution, and it is few little to Blood damage to engage contact surface.
Inventive technique scheme:
The electromagnetic levitation type of a kind of extracorporeal circulation drives tingia pumping system, and this system is made up of driver 1, the pump housing 2, the driven driving ring 3 of permanent magnet, impeller unit 4, tingia 5.Permanent magnet is annular permanent magnet multipair pole radial magnetizing, and blood pump is originally internal comprises footpath tingia shape impeller.Driver interior loop curent change produces variation magnetic field thus non-contact type drives magnet ring to rotate, and then permanent magnet impeller device rotates, for human body blood supply.The present invention adopts rotating excitation field directly to provide kinetic energy for blood pump, and blood pump body is without heating, and tingia pump can reduce backflow, improves flow, and does not have rolling to damage blood.
Accompanying drawing explanation
Fig. 1 is the aufbauprinciple schematic diagram that electromagnetic levitation type drives an embodiment of tingia pumping system.
Fig. 2 is the system sectional view in embodiment.
Fig. 3 is that electromagnetic levitation type drives tingia pumping system tingia contact schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing 2-3, the embodiment in the present invention is described specifically
The electromagnetic levitation type of the present embodiment drives in tingia pumping system, and in driver 1 coil, curent change drives the driven driving ring 3 of permanent magnet of radial magnetizing in the pump housing 2 to rotate.The driven driving ring 3 impeller device 4 of permanent magnet rotates, and is reached for the purpose of human body blood supply.
The pump housing 2 shell is fixed, and the driven driving ring 3 of permanent magnet is integrally forming with impeller unit 4.The driven driving ring 3 of permanent magnet rotates and drives drive rod rotation, to tingia 5 engagement in rotation in drive link impeller device 4, the process of engagement forms the separate chamber comprising blood, forms non-return valve function, from without producing backflow so that system is not affected by load resistance change.Tooth page engagement process keeps single-contact transmission torsion, thus the contact area reducing the field of conjugate action reduces Blood damage.
Impeller unit 4 one end and pump case base contacts, whole impeller unit 4 remainder is vacant state under static or motion.When moving radially in impeller unit 4, magnetic density increases, and resistance increases, the internal reinstatement state of impeller unit 4, keeps radially stable, and impeller unit 4 is axially attracted by the driven driving ring 3 of permanent magnet, keeps axially stable, it is achieved monolithic stability suspends.
Driver coil adjusts curent change according to necessary flow, control magnet ring rotating speed, namely by realizing controlling the purpose of the acceleration-deceleration motion that curent change gradient reaches to control impeller, formation pulsation type drives, whole process adopts magnetically-actuated, exempt Mechanical Contact, it is to avoid the generation of the problems such as contact sealing.
This medical magnetic floated driving tingia pumping system is a kind of multipurpose magnetic suspension blood pump, and alternative occlusion pump is for the perfusion system of extracorporeal circulation, and in hgher efficiency, safety is better.Centrifugal pump can also be substituted for multiclass extracorporeal circulation, such as ECMO and organ transplantation charge pump.Native system compares conventional pump, and mechanical friction contact is less, and caloric value is relative reduction also, and Blood damage is little, and required pipe-line system reduces priming volume less, reduces operation risk.
The above is a kind of case study on implementation of the present invention, it is not limited to the present invention.Those skilled in that art, to above change and change, as long as in broad scope of the present invention, all should belong to scope.
Claims (5)
1. extracorporeal circulation electromagnetic levitation type drives tingia pumping system, including driver (1), the pump housing (2), the driven driving ring (3) of permanent magnet, impeller unit (4), tingia (5).
Described driver comprises coil in (1), drives permanent magnetic drive ring (3) to rotate by changing coil by curent change non-contact type, and permanent-magnetic clamp rotates and drives chain extension bar to rotate
The described pump housing (2) comprises the driven driving ring (3) of permanent magnet and impeller unit (4).
2. electromagnetic levitation type described in claim 1 drives tingia pumping system, it is characterised in that the pump housing (2) shell is fixed, and comprises the driven driving ring (3) of permanent magnet, impeller unit (4) in it.
3. electromagnetic levitation type described in claim 1 drives tingia pumping system, it is characterised in that permanent magnet driven driving ring (3) and impeller unit (4) integrated equipment.
4. electromagnetic levitation type described in claim 1 drives tingia pumping system, it is characterised in that have a driven driving ring (3) of permanent magnet, it is characterised in that permanent magnet is annular permanent magnet, arranges with multipair pole radial magnetizing.
5. electromagnetic levitation type described in claim 1 drives tingia pumping system, it is characterized in that, it is tingia type blade design in impeller unit (4), forms separate chamber one by one by engagement and reach the pump blood purpose without backflow, tingia (5) engagement process keeps single-contact transmission torsion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141309 | 2016-03-14 | ||
| CN2016101413091 | 2016-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105797226A true CN105797226A (en) | 2016-07-27 |
Family
ID=56457637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610262567.5A Pending CN105797226A (en) | 2016-03-14 | 2016-04-25 | Magnetic suspension roller type heart pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105797226A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997029795A1 (en) * | 1996-02-20 | 1997-08-21 | Kriton Medical, Inc. | Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings |
| US5840070A (en) * | 1996-02-20 | 1998-11-24 | Kriton Medical, Inc. | Sealless rotary blood pump |
| CN104324428A (en) * | 2014-10-17 | 2015-02-04 | 山东科技大学 | Magnetic liquid suspension centrifugal device |
| CN104373357A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical magnetic drive centrifugal pump based on logarithmic spiral impeller and sliding bearings |
| CN104373356A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical semi-maglev centrifugal pump based on steel ball |
| CN204910253U (en) * | 2015-03-24 | 2015-12-30 | 山东科技大学 | Centrifugal magnetic suspension leaf wheel transmission |
| CN205867185U (en) * | 2016-03-14 | 2017-01-11 | 正仁（北京）医疗仪器有限公司 | Magnetic suspension roller -type heart pump |
-
2016
- 2016-04-25 CN CN201610262567.5A patent/CN105797226A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997029795A1 (en) * | 1996-02-20 | 1997-08-21 | Kriton Medical, Inc. | Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings |
| US5840070A (en) * | 1996-02-20 | 1998-11-24 | Kriton Medical, Inc. | Sealless rotary blood pump |
| CN104324428A (en) * | 2014-10-17 | 2015-02-04 | 山东科技大学 | Magnetic liquid suspension centrifugal device |
| CN104373357A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical magnetic drive centrifugal pump based on logarithmic spiral impeller and sliding bearings |
| CN104373356A (en) * | 2014-11-14 | 2015-02-25 | 中国科学院苏州生物医学工程技术研究所 | Medical semi-maglev centrifugal pump based on steel ball |
| CN204910253U (en) * | 2015-03-24 | 2015-12-30 | 山东科技大学 | Centrifugal magnetic suspension leaf wheel transmission |
| CN205867185U (en) * | 2016-03-14 | 2017-01-11 | 正仁（北京）医疗仪器有限公司 | Magnetic suspension roller -type heart pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU708476B2 (en) | Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings | |
| CN103877630B (en) | Axial magnetic unload-type axial-flow pump heart-assist device | |
| CN102397598B (en) | Compact axial-flow magnetic-levitation artificial heart pump | |
| CN108883218B (en) | Axial flow blood pump with radially offset rotors | |
| JP3834610B2 (en) | Artificial heart pump with hydrodynamic bearing | |
| CN105477706B (en) | Bimorph transducer mixing bearing artificial heart pump | |
| CN107837430A (en) | A kind of magnetic suspension shaft streaming self power generation artificial heart pump | |
| CN107890590B (en) | Dynamic magnetic balance suspension centrifugal blood pump | |
| CN104258481B (en) | Magnetic suspension axial flow type spiral driving device | |
| CN103977464A (en) | Implantable miniature axial blood pump with gradually-changing flow zone at outlet | |
| CN104307063A (en) | Magnetic resistance suspension centrifugal type device | |
| CN101015716A (en) | Implanted non-contact minisize axial-flow blood pump | |
| CN104373356B (en) | A kind of medical semi-magnetic suspension centrifugal pump based on steel ball | |
| CN102619721B (en) | Multistage electromagnetic incentive type piston pump in linear reciprocation | |
| CN205867185U (en) | Magnetic suspension roller -type heart pump | |
| CN104324428A (en) | Magnetic liquid suspension centrifugal device | |
| Wampler et al. | A sealless centrifugal blood pump with passive magnetic and hydrodynamic bearings | |
| CN105797226A (en) | Magnetic suspension roller type heart pump | |
| CN102705246B (en) | Impeller-suspended superminiature pump | |
| CN104373357A (en) | Medical magnetic drive centrifugal pump based on logarithmic spiral impeller and sliding bearings | |
| WO2021120724A1 (en) | Extracorporeal circulation blood pump and method | |
| Li et al. | Development of a new left ventricular assist device: the dynamic aortic valve | |
| CN103480053A (en) | Magnetism-driven blood pump system | |
| Qian et al. | A novel permanent maglev impeller TAH: Most requirements on blood pumps have been satisfied | |
| CN204419600U (en) | A kind of magnetic based on spiral of Archimedes impeller and rolling bearing drives centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |
|
| WD01 | Invention patent application deemed withdrawn after publication |