CN108785770A - A kind of external blood pump that can reduce haemolysis - Google Patents
A kind of external blood pump that can reduce haemolysis Download PDFInfo
- Publication number
- CN108785770A CN108785770A CN201810351043.2A CN201810351043A CN108785770A CN 108785770 A CN108785770 A CN 108785770A CN 201810351043 A CN201810351043 A CN 201810351043A CN 108785770 A CN108785770 A CN 108785770A
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- Prior art keywords
- pump
- haemolysis
- boss
- axis
- cavity
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Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Anesthesiology (AREA)
- Cardiology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of external blood pumps that can reduce haemolysis, including pump case；Pump case is equipped with pump inlet and pump discharge；A cavity is equipped in pump case, the cavity is connected to pump inlet and pump discharge；Rotatable vane rotor is equipped in cavity；The vane rotor lower end stretches out cavity and extends to pump case；The part that vane rotor stretches out pump case is connect by sealing element and bearing with pump case, and vane rotor bottom connects motor.The external blood pump of the present invention that haemolysis can be reduced, the blood pump are to have an axis centrifugal pump, and to be placed on pump outer for the components such as bearing, and not with contacting blood, processing technology is simple, low cost, and can effectively reduce the generation of haemolysis.
Description
Technical field
The invention belongs to medical instruments fields, can be widely used for can subtract in extracorporeal circulation apparatus more particularly, to a kind of
The external blood pump of few haemolysis.
Background technology
Blood pump is also known as artificial heart pump, the blood pump that can be divided into implantable blood pump and external auxiliary device.Implantable
Blood pump can be divided into full artificial heart and ventricular assisted device according to supplementary mode, and pump volume is small, and control is complicated, and cost is higher.Body
The general volume of blood pump in outer auxiliary device is larger, but cost is relatively low, makes the important component of extracorporeal circulation apparatus, can part
Or the pump machine energy of heart is substituted completely, the therapy of the good blood circulation situation of whole body is maintained, is mainly used for outside angiocarpy
Section's operation, oncotherapy, extracorporeal membrane oxygenation (ECMO), organ transplantation and other shell fields.
External blood pump clinically has two kinds of roller pump and centrifugal pump.Roller pump is not easily shifted, difficult management, and in pump blood
Larger extruding force is will produce simultaneously, causes haemolysis, therefore in the preferred centrifugal pump of first aid profession as external blood pump.But current body
Outer blood pump still has higher price, the problem of complication such as haemolysis easily occurs.
Invention content
In view of this, the present invention is directed to propose a kind of external blood pump that can reduce haemolysis, to overcome lacking for the prior art
It falls into, which is to have an axis centrifugal pump, and it is outer that the components such as bearing are placed on pump, and not with contacting blood, processing technology is simple, low cost,
And the generation of haemolysis can be effectively reduced.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of external blood pump that can reduce haemolysis, including pump case；Pump case is equipped with pump inlet and pump discharge；Pump is outer
A cavity is equipped in shell, the cavity is connected to pump inlet and pump discharge；Rotatable vane rotor is equipped in cavity；The leaf
Wheel rotor lower end stretches out cavity and extends to pump case；The part that vane rotor stretches out pump case is outer by sealing element and bearing and pump
Shell connects, and vane rotor bottom connects motor.
Further, there are a groove, sealing element and bearings to be fastened on the groove for the pump case bottom outer surface
It is interior；Sealing element is located at the upper end of bearing, and is bonded with the top of groove.
Further, the groove is ladder-like, and the internal diameter of upper end is less than the internal diameter of lower end；The sealing element is located at groove
Upper end, bearing is located at the lower end of groove, and the bottom of bearing is concordant with the bottom of groove.
Further, the vane rotor includes several blades, deflection cone, boss and axis, and several blades, deflection cone and
There are spacing between the peripheral wall of cavity for boss；The deflection cone is corresponding with the position of pump inlet, and between the two there are
Spacing；The deflection cone, several blades and boss are set gradually from top to bottom, and adjacent the two is fixedly connected；The axis upper end
The region that through-hole and several blades among boss surround at least is sequentially passed through under to connect with deflection cone bottom；It stretches the lower end of axis
Go out cavity and extends to pump case；Position of the axle position below cavity is connect with pump case gap.
Further, several blades are uniformly distributed along deflection cone bottom cylindrical week, and several blades, deflection cone and axis are constituted
" umbrella " shape；Several blades all extend to outside boss；The position that pump case is stretched out in the axis lower end passes through sealing element and bearing and pump
Cage connection, and the bottom of axis connects motor by shaft coupling.
Further, the boss is cyclic annular, and the internal diameter of boss is more than the diameter of axis；The upper end of axis and deflection cone one at
Type is detachably connected, and the mode being detachably connected can be threaded connection, grafting etc.；Position and pump of the axle position below cavity
Housing slot is 0.02-0.2 μm.
Further, boss upper surface is tilted down from centre to edge, and the lateral surface of boss is the up big and down small conical surface；
Blood pump impeller diameter is 40-80mm.
Further, the outside the boss face and the junction of lower surface, the junction of inner peripheral surface and lower surface, inner peripheral surface
It is equipped with rounding with the junction of upper surface.
Further, the cavity is up big and down small ladder-like.
Further, the pump inlet is located at the top of pump case, and pump discharge is located at the side of pump case.
Compared with the existing technology, a kind of external blood pump that can reduce haemolysis of the present invention has the advantage that：
(1) compared with electromagnetic levitation type, there are axis connection, control simple, stable connection；
(2) bearing is placed on outside pump, not with contacting blood, reduces haemolysis；And processing cost is low, does not also need costliness
Parts of bearings
(3) processing technology is good, and the gap between pump bottom case heat exchange axis can drop to 0.02-0.2 μm, and the routine of red blood cell
Diameter is at 8 μm, thus red blood cell cannot be introduced into gap, greatly reduce the generation of haemolysis.
(4) rotating speed is relatively low, therefore blade reduces the abrasion of red blood cell, greatly reduces haemolysis.
A kind of external blood pump that can reduce haemolysis of the present invention, the rotation of blade, deflection cone and boss composition pump
Part.Diameter relative to existing general magnetic suspension blood pump is between 20-40mm, in flow 4-6L/min, lift 80-
Under conditions of 120mmHg, the 2800-3200rpm the case where, one kind of the present invention can be reduced for the rotating speed of magnetic suspension blood pump
The external blood pump of haemolysis, using existing processing technology can (namely axis and cavity lower end pump by the spacing between axis and pump lower casing
Gap at cage connection between the two) control is at 0.2-2 μm, and the blood pump impeller diameter is between 40-80mm, corresponding
Under the conditions of flow and lift, corresponding rotating speed is 1900-2500rpm.In addition, spacing (namely the axis between control shaft and pump lower casing
With the gap of cavity lower end pump case junction between the two) control is at 0.2-2 μm, and the average diameter of red blood cell is 7-8 μm,
Red blood cell cannot be introduced into axis and pump the gap between lower casing, can reduce the generation of haemolysis and thrombus.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the stereogram of the external blood pump that can reduce haemolysis described in the embodiment of the present invention；
Fig. 2 is the vertical view of the external blood pump that can reduce haemolysis described in the embodiment of the present invention；
Fig. 3 is the sectional view in the faces A-A in Fig. 2；
Fig. 4 is the front view of the external blood pump that can reduce haemolysis described in the embodiment of the present invention；
Fig. 5 is the sectional view in the faces B-B in Fig. 4；
Fig. 6 is the stereogram of the vane rotor of the external blood pump that can reduce haemolysis described in the embodiment of the present invention.
Reference sign：
1- pump cases；2- pump inlets；3- pump discharges；4- cavitys；5- vane rotors；501- blades；502- deflection cones；503-
Boss；504- axis；6- sealing elements；7- bearings；8- motors；9- shaft couplings.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To express or implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in figures 1 to 6, a kind of external blood pump that can reduce haemolysis, including pump case 1；Pump case 1 be equipped with pump into
Mouth 2 and pump discharge 3；A cavity 4 is equipped in pump case 1, the cavity 4 is connected to pump inlet 2 and pump discharge 3；It is equipped in cavity 4
Rotatable vane rotor 5；5 lower end of the vane rotor stretches out cavity 4 and extends to pump case 1；Vane rotor 5 stretches out pump case
1 part is connect by sealing element 6 and bearing 7 with pump case 1, and 5 bottom of vane rotor connects motor 8.Sealing element can be with
It is bio-compatibility Glan circle and gasket etc..
There are a groove, sealing element 6 and bearings 7 to be fastened in the groove for 1 bottom outer surface of the pump case；Sealing
Part 6 is located at the upper end of bearing 7, and is bonded with the top of groove.
The groove is ladder-like, and the internal diameter of upper end is less than the internal diameter of lower end；The sealing element 6 is located at the upper end of groove,
Bearing 7 is located at the lower end of groove, and the bottom of bearing 7 is concordant with the bottom of groove.
The vane rotor 5 include several blades 501, deflection cone 502, boss 503 and axis 504, and several blades 501,
There are spacing between the peripheral wall of cavity 4 for deflection cone 502 and boss 503；The position phase of the deflection cone 502 and pump inlet 2
It is corresponding, and there are spacing between the two；The deflection cone 502, several blades 501 and boss 503 are set gradually from top to bottom, and
It is both adjacent to be fixedly connected；504 upper end of the axis at least sequentially passes through columned through-hole among boss 503 and several under
The region that blade 501 surrounds is connect with 502 bottom of deflection cone；The lower end of axis 504 stretches out cavity 4 and extends to pump case 1；Axis 504
Position positioned at 4 lower section of cavity is connect with 1 gap of pump case.There are spacing between columned through-hole and axis.Deflection cone, blade
Be fixedly connected with composition rotating part with boss, when processing, can process axis and boss together, then by blade and boss, deflection cone and
Blade passes through laser welding.
Several blades 501 are uniformly distributed along 502 bottom cylindrical week of deflection cone, and several blades 501, deflection cone 502 and axis
504 constitute " umbrella " shape；Several blades 501 all extend to outside boss 503；The position that pump case 1 is stretched out in 504 lower end of the axis passes through
Sealing element 6 and bearing 7 are connect with pump case 1, and the bottom of axis 504 connects motor 8 by shaft coupling 9.
The boss 503 is cyclic annular, and the internal diameter of boss 503 is more than the diameter of axis 504；The upper end of axis 504 and deflection cone 502
It is integrally formed；It is 0.05 μm that axis 504, which is located at the position of 4 lower section of cavity and 1 gap of pump case,.
503 upper surface of boss is tilted down from centre to edge, and the lateral surface of boss 503 is the up big and down small conical surface；Blood
The a diameter of 60mm of impeller of pump；The inner circumferential of boss 503 is cylindrical surface.
503 lateral surface of the boss and the junction of lower surface, the junction of inner peripheral surface and lower surface, inner peripheral surface and upper table
The junction in face is equipped with rounding.
The cavity 4 is up big and down small ladder-like.
The pump inlet 2 is located at the top of pump case 1, and pump discharge 3 is located at the side of pump case 1.
The total quantity of above-mentioned blade 501 is 5.
The course of work of the present embodiment is：
8 drive shaft 504 of motor rotates, and then deflection cone 502 and blade 501 is driven to rotate.In the process of running, blood from
Pump inlet 2 flows into, and due to the centrifugal force that the rotation of blade 501 generates, blood flows to pump discharge 3, completes blood flow process.At this
During a, due to there is gap between the circular through hole at 503 center of axis 504 and boss, blood can between the two clearance flow
Go out, increases fluid and 503 centered cylinder wall surface of boss and 504 surface of axis are washed away.The fluid edge of 503 bottom of boss is driven simultaneously
Gap between boss 503 and axis 504 flows up.It avoids blood from being trapped in 503 bottom of boss, is further reduced the shape of thrombus
At.
Compare magnetic suspension pump, the external blood pump that can reduce haemolysis described in the present embodiment, using there is the pump of axis 504, adds
Work technique is simpler, without complicated control system, and runs highly stable.Since sealing element 6 and bearing 7 are all placed on pump
In lower casing (pump case bottom is far from 4 side of cavity), not with contacting blood, the problem of bearing 7 is to the abrasion of blood is can avoid, is had
Effect reduces the generation of haemolysis.Because bearing 7 is placed on except blood, therefore 7 material of bearing does not need expensive special substance, has
Effect reduces 7 cost of bearing.Meanwhile existing processing technology can control the spacing between axis 504 and pump lower casing at 0.05 μm,
And the average diameter of red blood cell is 7-8 μm, red blood cell cannot be introduced into axis 504 and pump the gap between lower casing, reduce haemolysis and blood
The generation of bolt.The external blood pump that can reduce haemolysis described in the present embodiment is more slightly larger than the volume of general electromagnetic levitation type blood pump, but
Rotating speed is smaller, and lift can be effectively ensured, and reduces abrasion of the blade 501 to red blood cell, reduces haemolysis to the full extent.
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
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of external blood pump that can reduce haemolysis, it is characterised in that：Including pump case (1)；Pump case (1) be equipped with pump into
Mouth (2) and pump discharge (3)；A cavity (4) is equipped in pump case (1), the cavity (4) connects with pump inlet (2) and pump discharge (3)
It is logical；Rotatable vane rotor (5) is equipped in cavity (4)；Vane rotor (5) lower end is stretched out cavity (4) and is extended to outside pump
Shell (1)；The part that vane rotor (5) stretches out pump case (1) is connect by sealing element (6) and bearing (7) with pump case (1), and
Vane rotor (5) bottom connects motor (8).
2. the external blood pump according to claim 1 that haemolysis can be reduced, it is characterised in that：Pump case (1) bottom
There are a groove, sealing element (6) and bearings (7) to be fastened in the groove for outer surface；Sealing element (6) is located at bearing (7)
Upper end, and be bonded with the top of groove.
3. the external blood pump according to claim 2 that haemolysis can be reduced, it is characterised in that：The groove be it is ladder-like,
The internal diameter of upper end is less than the internal diameter of lower end；The sealing element (6) is located at the upper end of groove, and bearing (7) is located at the lower end of groove, and
The bottom of bearing (7) is concordant with the bottom of groove.
4. the external blood pump according to claim 1 that haemolysis can be reduced, it is characterised in that：Vane rotor (5) packet
Include several blades (501), deflection cone (502), boss (503) and axis (504), and several blades (501), deflection cone (502) and
There are spacing between the peripheral wall of cavity (4) for boss (503)；The deflection cone (502) is opposite with the position of pump inlet (2)
It answers, and there are spacing between the two；The deflection cone (502), several blades (501) and boss (503) are set successively from top to bottom
It sets, and adjacent the two is fixedly connected；Axis (504) upper end boss (503) is at least sequentially passed through under if intermediate through-hole and
The region that cured leaf piece (501) surrounds is connect with deflection cone (502) bottom；The lower end of axis (504) is stretched out cavity (4) and is extended to outside pump
Shell (1)；Axis (504) is located at the position below cavity (4) and is connect with pump case (1) gap.
5. the external blood pump according to claim 4 that haemolysis can be reduced, it is characterised in that：It leads on several blades (501) edges
Flow cone (502) bottom cylindrical week is uniformly distributed, and several blades (501), deflection cone (502) and axis (504) constitute " umbrella " shape；If
Cured leaf piece (501) all extends to boss (503) outside；The position that pump case (1) is stretched out in axis (504) lower end passes through sealing element
(6) it is connect with pump case (1) with bearing (7), and the bottom of axis (504) connects motor (8) by shaft coupling (9).
6. the external blood pump according to claim 4 that haemolysis can be reduced, it is characterised in that：The boss (503) is cyclic annular,
And the internal diameter of boss (503) is more than the diameter of axis (504)；The upper end of axis (504) is with deflection cone (502) integrated molding or detachably
Connection；It is 0.02-0.2 μm that axis (504), which is located at position below cavity (4) with pump case (1) gap,.
7. the external blood pump that can reduce haemolysis according to claim 4 or 6, it is characterised in that：Boss (503) upper surface
It is tilted down from centre to edge, the lateral surface of boss (503) is the up big and down small conical surface；Blood pump impeller diameter is 40-80mm.
8. the external blood pump according to claim 7 that haemolysis can be reduced, it is characterised in that：On the outside of the boss (503)
The junction of face and lower surface, the junction of inner peripheral surface and lower surface, inner peripheral surface and upper surface junction be equipped with rounding.
9. the external blood pump according to claim 1 that haemolysis can be reduced, it is characterised in that：The cavity (4) is upper big
Under it is small ladder-like.
10. the external blood pump according to claim 1 that haemolysis can be reduced, it is characterised in that：The pump inlet (2) is located at
The top of pump case (1), pump discharge (3) are located at the side of pump case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351043.2A CN108785770A (en) | 2018-04-18 | 2018-04-18 | A kind of external blood pump that can reduce haemolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351043.2A CN108785770A (en) | 2018-04-18 | 2018-04-18 | A kind of external blood pump that can reduce haemolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108785770A true CN108785770A (en) | 2018-11-13 |
Family
ID=64094367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810351043.2A Pending CN108785770A (en) | 2018-04-18 | 2018-04-18 | A kind of external blood pump that can reduce haemolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108785770A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665078A (en) * | 2019-10-31 | 2020-01-10 | 北京清科博动科技有限公司 | Centrifugal heart pump with low hemolysis rate |
| CN111494741A (en) * | 2020-05-25 | 2020-08-07 | 清华大学 | Artificial lung for extracorporeal circulation |
| CN113546297A (en) * | 2021-07-14 | 2021-10-26 | 清华大学 | Implanted miniature magnetic suspension axial flow blood pump |
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| US5147187A (en) * | 1990-04-16 | 1992-09-15 | Nikkiso Co., Ltd. | Blood pump and extracorporeal blood circulating apparatus |
| CA2101085A1 (en) * | 1992-08-20 | 1994-02-21 | Kazuyuki Ito | Blood pump |
| JP2002089491A (en) * | 2000-09-11 | 2002-03-27 | Jms Co Ltd | Turbo blood pump |
| JP2003052809A (en) * | 2001-08-10 | 2003-02-25 | San Medical Gijutsu Kenkyusho:Kk | Blood pump |
| CN202236531U (en) * | 2010-03-12 | 2012-05-30 | 缪新元 | Blood pump capable of driving rotating body by motor through shaft |
| CN202761778U (en) * | 2012-08-03 | 2013-03-06 | 上海交通大学医学院附属上海儿童医学中心 | Novel centrifugal blood pump |
| WO2014000753A1 (en) * | 2012-06-28 | 2014-01-03 | Rheinisch-Westfälische Technische Hochschule Aachen | Centrifugal blood pump apparatus |
| 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 |
| CN107693869A (en) * | 2017-09-30 | 2018-02-16 | 北京安生生物技术有限责任公司 | A kind of suspension of five-freedom degree magnetic receded disk impeller that can reduce haemolysis and thrombus |
| CN209301837U (en) * | 2018-04-18 | 2019-08-27 | 清华大学天津高端装备研究院 | A kind of external blood pump that can reduce haemolysis |
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| 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 |
| US5147187A (en) * | 1990-04-16 | 1992-09-15 | Nikkiso Co., Ltd. | Blood pump and extracorporeal blood circulating apparatus |
| CA2101085A1 (en) * | 1992-08-20 | 1994-02-21 | Kazuyuki Ito | Blood pump |
| JP2002089491A (en) * | 2000-09-11 | 2002-03-27 | Jms Co Ltd | Turbo blood pump |
| JP2003052809A (en) * | 2001-08-10 | 2003-02-25 | San Medical Gijutsu Kenkyusho:Kk | Blood pump |
| CN202236531U (en) * | 2010-03-12 | 2012-05-30 | 缪新元 | Blood pump capable of driving rotating body by motor through shaft |
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| CN202761778U (en) * | 2012-08-03 | 2013-03-06 | 上海交通大学医学院附属上海儿童医学中心 | Novel 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 |
| CN107693869A (en) * | 2017-09-30 | 2018-02-16 | 北京安生生物技术有限责任公司 | A kind of suspension of five-freedom degree magnetic receded disk impeller that can reduce haemolysis and thrombus |
| CN209301837U (en) * | 2018-04-18 | 2019-08-27 | 清华大学天津高端装备研究院 | A kind of external blood pump that can reduce haemolysis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665078A (en) * | 2019-10-31 | 2020-01-10 | 北京清科博动科技有限公司 | Centrifugal heart pump with low hemolysis rate |
| CN111494741A (en) * | 2020-05-25 | 2020-08-07 | 清华大学 | Artificial lung for extracorporeal circulation |
| CN113546297A (en) * | 2021-07-14 | 2021-10-26 | 清华大学 | Implanted miniature magnetic suspension axial flow blood pump |
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