CN2880096Y - External bearing type artificial heart blood circulation pump - Google Patents
External bearing type artificial heart blood circulation pump Download PDFInfo
- Publication number
- CN2880096Y CN2880096Y CN 200620003622 CN200620003622U CN2880096Y CN 2880096 Y CN2880096 Y CN 2880096Y CN 200620003622 CN200620003622 CN 200620003622 CN 200620003622 U CN200620003622 U CN 200620003622U CN 2880096 Y CN2880096 Y CN 2880096Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- bearing
- fixed
- bearing type
- housing
- 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.)
- Expired - Lifetime
Links
- 230000017531 blood circulation Effects 0.000 title abstract description 4
- 210000004369 blood Anatomy 0.000 claims abstract description 30
- 239000008280 blood Substances 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims description 10
- 208000007536 Thrombosis Diseases 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 7
- 210000003743 erythrocyte Anatomy 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 206010018910 Haemolysis Diseases 0.000 description 3
- 230000008588 hemolysis Effects 0.000 description 3
- 206010019280 Heart failures Diseases 0.000 description 2
- 238000009098 adjuvant therapy Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000005259 peripheral blood Anatomy 0.000 description 1
- 239000011886 peripheral blood Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an external bearing type artificial heart blood circulation pump, comprising a housing, a solid-core support body with a basiconic head fixed inside the housing, an external bearing-type rotor and an outpour tube connected with the empennage of the housing. The external bearing-type rotor is composed of a rotor housing, a hollow wheelboss which is fixed inside the rotor housing and has a similar head shape of the solid-core support body, a helical rotor impeller which is fixed between the inside wall of the rotor housing and the outside wall of the hollow wheelboss, a permanent magnet which is fixed on the outside wall of the hollow wheelboss, a bearing which is fixed on the outside wall of the hollow wheelboss, and a coil which is encased around the permanent magnet. The external bearing-type rotor enwraps the head of the solid-core support body and is enwrapped and fixed by the housing. Because the utility model is an external bearing-type rotor, the bearing is fixed outside the rotor, thereby the requirement of manufacturing technology of the bearing is not high, the model is esay to produce, install and lubricate the bearing; the more important is that the damage to the blood formed element, in particular to erythrocyte is little and decreases the thrombus forming inside the pump.
Description
Technical field
This utility model relates to the mobile blood pump of a kind of accessory heart inner blood, refers to a kind of outer bearing type artifical heart blood pump especially.
Background technology
Clinically, need carry out auxiliary treatment by artificial mechanical's device for heart failure patient.At present, artificial mechanical's adjuvant therapy device commonly used has centrifugal pump, axial-flow pump and pulsate pump, is mainly used in ventricle auxiliary treatment and total artificial heart.Because axial flow blood pump has characteristics such as volume is little, efficient is high, implantable, so axial flow blood pump is the present research focus of artificial ventricle's adjuvant therapy device clinically.
Modal axial-flow pump all is an inner bearing formula artificial heart blood pump.Existing inner bearing formula artificial heart blood pump is the inner bearing structure, and the spring bearing that promptly drives the impeller of rotor rotation is positioned at rotor or impeller hub inside.Because the wheel hub inner space is narrow and small, this structure has proposed very high specification requirement for the material and the processing technique of bearing, has brought very burden for simultaneously the lubricated of bearing, and forms thrombosis easily at these positions.
In order to guarantee the normal operation of artificial heart blood pump, present stage, main in the world popular solution was to use non-lubricating ceramic bearing, ruby bearing or utilization magnetic suspension rotor.Though the lubrication problem of bearing when these schemes have solved running, their processing technique are all comparatively complicated, the specification requirement that has is domestic can't to be reached, and causes cost to improve greatly; And the thrombosis problem does not still solve.Particularly, for blood formed element, particularly the destruction of erythrocyte is quite big with the gap leakage current between the casing and high shearing force for rotor blade, and the haemolysis performance issue that causes thus can't overcome.
Summary of the invention
For the high shear force that solves inner bearing formula artificial heart blood pump lubrication problem, when running impeller of rotor blade tip to the blood formed element easy thrombosed problem of destruction problem and bearing place of erythrocyte particularly, the purpose of this utility model provides a kind of outer bearing type artifical heart blood pump.
For achieving the above object, this utility model is taked following design: a kind of outer bearing type artifical heart blood pump is characterized in that: solid supporter, outer bearing type artifical rotor and the outflow pipeline that links to each other with the shell afterbody that it is taper by shell, fixing head in the enclosure mainly constitute;
Described outer bearing type artifical rotor by the rotor casing, be fixed on the shape of the rotor casing inside hollow wheel hub similar, be fixed on screw type impeller of rotor between rotor casing inner wall and the hollow wheel hub outer wall, be fixed on the permanent magnet of rotor casing outer wall to solid supporter nose shape, the coil combination that is fixed on the bearing of rotor casing outer wall and is enclosed within the permanent magnet outer wall forms;
Described outer bearing type artifical rotor is wrapped by described shell after being enclosed within the head of described solid supporter.
Described rotor casing, wheel hub and impeller of rotor are structure as a whole.
There is not the gap between described impeller of rotor and the rotor casing.
Because this utility model is the outer bearing type artifical rotor, its bearing fixing is in the rotor outside, so, not high to the manufacture process requirement of bearing, be convenient to processing and manufacturing, installation, and be convenient to bearing lubrication; The more important thing is that to blood formed element, particularly erythrocytic destruction is little, reduce haemolysis; Reduce the formation of the inner thrombosis of the pump housing.
Description of drawings
Fig. 1 is this utility model outer bearing type artifical heart blood pump structural representation
Fig. 2 is this utility model outer bearing type artifical heart blood pump decomposition texture sketch map
Fig. 3 is the cutaway view of this utility model outer bearing type artifical heart blood pump
Fig. 4 is the side view of this utility model outer bearing type artifical heart blood pump
The specific embodiment
As Fig. 1～shown in Figure 4, the disclosed outer bearing type artifical heart blood pump of this utility model mainly by shell 1, to be fixed on head in the shell 1 be that solid supporter 2, outer bearing type artifical rotor 3 and the outflow pipeline 4 that links to each other with shell 1 afterbody of taper constitutes.
Outer bearing type artifical rotor 3 by rotor casing 31, be fixed on the shape of the rotor casing 31 inside hollow wheel hub 32 similar, be fixed on screw type impeller of rotor 33 between rotor casing 31 inwalls and hollow wheel hub 32 outer walls, be fixed on the permanent magnet 34 of rotor casing 31 outer walls to solid supporter 2 nose shapes, the coil 36 that is fixed on the bearing 35 of rotor casing 31 outer walls and is enclosed within permanent magnet 34 outer walls combines.
Above-mentioned outer bearing type artifical rotor 3 is wrapped by shell 1 after being enclosed within the head of solid supporter 2.
After this utility model outer bearing type artifical blood pump is installed between failure heart and the trunk, connect the power supply at shell interior loop two ends, make and flow through electric current generation magnetic field in the coil, this magnetic field and permanent magnet interact, promoting rotor casing, impeller and wheel hub by outer bearing rotates together, blood (shown in arrow among Fig. 1) flows out through flowing out pipeline along the outer wall of solid supporter under the promotion of impeller of rotor.
During fabrication, rotor casing 31, wheel hub 32 and impeller of rotor 33 can be made one.Advantage of the present utility model:
1, low cost of manufacture is easy to processing.Because this utility model is the outer bearing type artifical rotor, its bearing fixing is in the rotor outside, so, not high to the manufacture process requirement of bearing, be convenient to processing and manufacturing, installation, low cost of manufacture.
2, be convenient to bearing lubrication.Because this utility model is an outer bearing, so, realize that for lubricated being easy to of bearing the running of bearing is stable more, reliable.
3, little to the destruction of erythrocyte.Because this utility model impeller of rotor is fixed between rotor casing inner wall and the hollow wheel hub outer wall, and there is not the gap between the rotor casing, when blood flow, do not exist erythrocyte is carried out destructive gap stream shearing force, so this utility model is little to the destruction of erythrocyte, fundamentally solved tip clearance stream to blood formed element, mainly be the destruction of erythrocyte, avoided the influence of bearing, promptly reduce haemolysis blood formed element.
4, reduce the thrombosis problem.Thrombosis mainly results from the non-stationary flow zone of liquid flow in the blood pump, and for example traditional inner bearing formula blood pump is around bearing, because have bigger turbulent area, blood flow rate changes, so, easily cause thrombosis.And this utility model has been owing to adopted the outer bearing type artifical design, thus the turbulent area that causes when having avoided the bearing peripheral blood to flow, thus avoided because the built-in thrombosis that causes of bearing reduces the formation of the inner thrombosis of the pump housing.
The above is the specific embodiment of the present utility model and the know-why used, and is any based on the equivalent transformation on the technical solutions of the utility model basis, all belongs within this utility model protection domain.
Claims (3)
1, a kind of outer bearing type artifical heart blood pump is characterized in that: solid supporter, outer bearing type artifical rotor and the outflow pipeline that links to each other with the shell afterbody that it is taper by shell, fixing head in the enclosure mainly constitute;
Described outer bearing type artifical rotor by the rotor casing, be fixed on the shape of the rotor casing inside hollow wheel hub similar, be fixed on screw type impeller of rotor between rotor casing inner wall and the hollow wheel hub outer wall, be fixed on the permanent magnet of rotor casing outer wall to solid supporter nose shape, the coil combination that is fixed on the bearing of rotor casing outer wall and is enclosed within the permanent magnet outer wall forms;
Described outer bearing type artifical rotor is wrapped by described shell after being enclosed within the head of described solid supporter.
2, outer bearing type artifical heart blood pump according to claim 1 is characterized in that: described rotor casing, wheel hub and impeller of rotor are structure as a whole.
3, outer bearing type artifical heart blood pump according to claim 1 is characterized in that: do not have the gap between described impeller of rotor and the rotor casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620003622 CN2880096Y (en) | 2006-02-10 | 2006-02-10 | External bearing type artificial heart blood circulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620003622 CN2880096Y (en) | 2006-02-10 | 2006-02-10 | External bearing type artificial heart blood circulation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2880096Y true CN2880096Y (en) | 2007-03-21 |
Family
ID=37879935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620003622 Expired - Lifetime CN2880096Y (en) | 2006-02-10 | 2006-02-10 | External bearing type artificial heart blood circulation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2880096Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488577C (en) * | 2006-02-10 | 2009-05-20 | 北京航空航天大学 | Outer bearing type artificial heart blood pump |
| 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) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
-
2006
- 2006-02-10 CN CN 200620003622 patent/CN2880096Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488577C (en) * | 2006-02-10 | 2009-05-20 | 北京航空航天大学 | Outer bearing type artificial heart blood pump |
| 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 |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100488577C (en) | Outer bearing type artificial heart blood pump | |
| CN2880096Y (en) | External bearing type artificial heart blood circulation pump | |
| CN103191476B (en) | Single-fulcrum magnetomotive centrifugal blood pump | |
| CN205163763U (en) | Axial compressor blood vessel pump of no bearing of rotor magnetism liquid suspension | |
| CN108175884B (en) | Ventricular assist pump | |
| CN102397598B (en) | Compact axial-flow magnetic-levitation artificial heart pump | |
| CN201618200U (en) | Intravascular mini blood supply pump | |
| CN107890590B (en) | Dynamic magnetic balance suspension centrifugal blood pump | |
| CN102247628B (en) | Implantable magnetic liquid suspension centrifugal blood pump | |
| CN200977306Y (en) | Minitype implantable axial flow type heart assist blood pump | |
| CN201710717U (en) | Miniature screw rod type blood pump | |
| CN107693869A (en) | A kind of suspension of five-freedom degree magnetic receded disk impeller that can reduce haemolysis and thrombus | |
| CN104258481B (en) | Magnetic suspension axial flow type spiral driving device | |
| CN107837430A (en) | A kind of magnetic suspension shaft streaming self power generation artificial heart pump | |
| CN104162191B (en) | A kind of liquid magnetic suspension shaft streaming assistant blood pump for heart | |
| US20030147754A1 (en) | Blood pump | |
| CN108273148A (en) | A kind of heat sink of implantable cardiac auxiliary blood pump | |
| CN111870752B (en) | Magnetic liquid coupling passive suspension type double-suction centrifugal blood pump | |
| WO2017196271A1 (en) | Internal axial flow blood pump with passive magnets and hydrodynamic radial bearing | |
| WO2015039605A1 (en) | Implanted self-suspended axial flow blood pump | |
| CN106512118A (en) | Totally-implanted magnetic liquid dual-suspension axial-flow blood pump | |
| WO2019041394A1 (en) | Blood pumping device | |
| CN103591028A (en) | Apex implantable centrifugal pump used in treatment of heart function failure | |
| CN205055004U (en) | Adopt artifical blood pump of hydraulic suspension bearing | |
| WO2023226916A1 (en) | Magnetic suspension type centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090520 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090520 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |