CN208448253U - A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring - Google Patents
A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring Download PDFInfo
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- CN208448253U CN208448253U CN201721304667.6U CN201721304667U CN208448253U CN 208448253 U CN208448253 U CN 208448253U CN 201721304667 U CN201721304667 U CN 201721304667U CN 208448253 U CN208448253 U CN 208448253U
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Abstract
The utility model provides a kind of Single Degree of Freedom Magnetic suspension centrifugal impeller that reduction thrombus occurs, including stationary parts and vane rotor, stationary parts is shell, shell is equipped with pump inlet and pump discharge, vane rotor includes the blade and cylindrical boss of setting inside the housing, cylindrical through-hole is offered at the center of boss, the circumferencial direction of the outer lateral edge boss of through-hole offers several first cavitys, is equipped with the first magnet in the first cavity；Pallet is provided with below shell, several second cavitys are offered inside it, second magnet is installed in the second cavity, pod is provided with above through-hole, the edge of pod and the leading edge of blade are connected as an entirety, axis is provided with below pod, the top of axis and the inner surface of pod are tangent, and bottom is connect with impeller housing.Receded disk impeller described in the utility model ensure that blood is run in loop, avoid lubrication, sealing and blood pollution problem.
Description
Technical field
The utility model belongs to field of medical device, more particularly, to a kind of single-degree-of-freedom magnetic suspension that reduction thrombus occurs
Receded disk impeller.
Background technique
Serious heart failure disease incidence rises year by year, but considerably less for the heart donor of transplanting, and artificial heart can be solved effectively
It the problem of certainly donor lacks, attends class from working principle and is divided into full artificial heart and ventricular assist device.Artificial heart is most important
It is impeller, facing maximum problem 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 axis.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.
Summary of the invention
In view of this, the utility model is directed to a kind of Single Degree of Freedom Magnetic suspension centrifugal leaf that reduction thrombus occurs
Wheel, the impeller are designed using single-degree-of-freedom magnetically levitated centrifugal pump, for the suspension of five-freedom degree magnetic centrifugal pump that compares, processing and manufacturing
More easily, attracting each other between unique diversion trench and axis guarantees that pump can steadily be operated in any angle, while optimizing structure and subtracting
Few grinding of the solid to haemocyte increases blood and washes away to wall surface, to reduce the generation of haemolysis and thrombus.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring, including stationary parts and vane rotor, institute
Stating stationary parts is shell, there is pump inlet and pump discharge on the shell, and the vane rotor includes being arranged inside the housing
Blade and cylindrical boss, the blade be along the circumferential direction uniformly arranged, offer cylinder at the center of the boss
Through-hole, the circumferencial direction of the outer lateral edge boss of through-hole offers several first cavitys, is equipped with first in first cavity
Magnet；Be provided with pallet below the shell, inside offer several second cavitys, is equipped in second cavity
Two magnet, first cavity and corresponding setting above and below the second cavity are provided with pod above the through-hole, described to lead
The leading edge of the edge and blade of flowing cover is connected as an entirety, and axis, the top of the axis are provided with below the pod
Tangent with the inner surface of pod, bottom and impeller housing connect into an entirety.
Further, third magnet is installed in the top of the pod, is equipped in the top of the axis and third
The 4th magnet that magnet attracts each other.
Further, the surface of the pod is fairing ace, and the cross-sectional area of top to bottom becomes larger.
Further, the inner surface of the pod is provided with several diversion trenches, and the diversion trench is along the top of pod
It is extended radially to the edge of pod.
Further, the diameter of the axis is less than the diameter of through-hole, forms annular space between the two.
Further, the number of the diversion trench is 1-10 item.
Further, the quantity of the blade is 2-6.
Compared with the existing technology, the Single Degree of Freedom Magnetic suspension centrifugal impeller described in the utility model for reducing thrombus and occurring
It has the advantage that
(1) the Single Degree of Freedom Magnetic suspension centrifugal impeller described in the utility model for reducing thrombus generation uses single-degree-of-freedom
Magnetically levitated centrifugal pump design, the conventional centrifugal that compares impeller, rotor part are placed completely and in impeller housing, guarantee that blood exists
It is run in loop, avoids lubrication, sealing and blood pollution problem；
(2) described in the utility model to reduce third in the Single Degree of Freedom Magnetic suspension centrifugal impeller pod that thrombus occurs
Magnet and the 4th magnet on axis top attract each other, guarantee pump any angle can even running, be able to satisfy complete for installing
The normal activity of the patient of artificial heart or ventricular assist device make simultaneously because fluid acts on the buoyancy lift of vane rotor
Pod is separated with axis, is guaranteed do not have any Mechanical Contact between rotor and impeller housing and axis in operational process, is reduced to blood
The destruction of cell；
(3) described in the utility model to reduce in the Single Degree of Freedom Magnetic suspension centrifugal impeller that thrombus occurs table in pod
The plurality of guiding gutter in face can increase blood flow, and the blood reduced between water conservancy diversion cover inner surface and axis upper surface is detained, to subtract
The generation of few thrombus；
(4) the Single Degree of Freedom Magnetic suspension centrifugal impeller described in the utility model for reducing thrombus generation is in operational process
In, boss bottom fluid is flowed up along the gap between boss and axis, avoids gap between boss bottom surface and boss and axis
The delay of middle fluid reduces thrombosis.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is cuing open for the Single Degree of Freedom Magnetic suspension centrifugal impeller that reduction thrombus occurs described in the utility model embodiment
View；
Fig. 2 is the schematic diagram of boss bottom surface described in the utility model embodiment；
Fig. 3 is the schematic diagram of pod described in utility model embodiment；
Fig. 4 is the blood flow during Single Degree of Freedom Magnetic suspension centrifugal impeller operation described in utility model embodiment
Schematic diagram.
Description of symbols:
1, shell；2, import；3, outlet, 4, blade；5, boss；6, pod；7, axis；8, the first magnet；9, pallet；
10, the second magnet；11, through-hole；12, the first cavity；13, third magnet；14, the 4th magnet；15, diversion trench；
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should 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 describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring, including stationary parts and leaf
Rotor is taken turns, stationary parts is shell 1, and the shell 1 is equipped with pump inlet 2 and pump discharge 3, and vane rotor includes being arranged in shell
Boss 5 and 2-6 blade 4 inside 1, boss 5 is cylindrical, and blade 4 is along the circumferential direction uniformly arranged, referring to Fig. 2, boss 5
Center at offer cylindrical through-hole 11, the circumferencial direction of the outer lateral edge boss 5 of through-hole 11 offers several first cavitys
12, the first magnet 8 is installed in the first cavity 12, and be encapsulated in the second cavity；The lower section of shell 1 is provided with pallet 9, in
Portion offers several second cavitys, the second magnet 10 is equipped in the second cavity, and be encapsulated in the second cavity；First cavity 12
With setting corresponding above and below the second cavity, the top of through-hole 11 is provided with pod 6, before the edge of pod 6 and blade 4
Edge is connected as an entirety, and the lower section of pod 6 is provided with axis 7, and the top of axis 7 and the inner surface of pod 6 are tangent, bottom with
Impeller housing 1 connects.
Referring to 1 and 3, third magnet 13 is installed in the top of pod 6, is equipped in the top of axis 7 and third magnet
13 the 4th magnet 14 to attract each other.The surface of pod 6 is fairing ace, and the cross-sectional area of top to bottom gradually becomes
Greatly.
When external magnetic field changes, external magnetic field is in the first magnet 8, the rotation of impeller rotor.It is rotated in vane rotor
In the process, fluid can have the buoyancy lift lifted a upwards effect to blade 4, this buoyancy lift makes vane rotor rise a spacing
From, to there be gap between pod 6 and axis 7, there is no Mechanical Contact between vane rotor and impeller housing 1 and axis 7, protect
Suspension of the vane rotor in shell 1 is demonstrate,proved, destruction of the mechanical part to haemocyte is reduced.
The active force between third magnet 13 that the 4th magnet 14 and pod 6 of 7 top of axis installation are installed is attraction,
This can guarantee pump any angle can even running, if this impeller is used for human body as full artificial heart or indirect labor's heart
It is dirty, it is able to satisfy the seat of the physiological activity of human normal, crouches, move, lying.
The inner surface of pod 6 is machined with plurality of guiding gutter 15, and the inner surface of pod 6 is provided with 1-10 diversion trench
15, diversion trench 15 extends along the top of pod 6 to the edge of pod 6 and radial, bending direction and the bending of blade 4
Direction is identical, and shape and blade 4 are same or similar.In rotary course, blood can be flowed by diversion trench 15, increase pod
Blood flow between 6 and axis 7, the blood reduced between 6 inner surface of pod and 7 upper surface of axis is detained, to reduce thrombus.
Referring to Fig. 4, in the process of running, blood enters from import 2, due to the centrifugal force that vane rotor rotation generates, blood
Liquid stream completes blood flow process to outlet 3.In this process, due between the through-hole 11 of 5 central circular of axis 7 and boss
There is gap, blood can be flowed out from gap between the two, increase fluid to 7 surface of inner wall and axis of 5 central through hole 11 of boss
It washes away.Gap of the fluid of 5 bottom of boss between boss 5 and axis 77 is driven to flow up simultaneously.Blood is avoided to be trapped in convex
5 bottom of platform, is further reduced the formation of thrombus.
Compared to more traditional receded disk impeller, the vane rotor of the utility model is placed completely in impeller housing 1, is guaranteed
Blood is run in loop, avoids lubrication, sealing and blood pollution problem.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring, it is characterised in that: the impeller includes static
Component and vane rotor, the stationary parts are shell (1), and the shell (1) is equipped with pump inlet (2) and pump discharge (3), institute
The vane rotor stated includes boss (5) of the setting in shell (1) internal blade (4) and cylinder, and the blade (4) is circumferentially
Direction is uniformly arranged, and cylindrical through-hole (11), the outer lateral edge boss of through-hole (11) are offered at the center of the boss (5)
(5) circumferencial direction offers several first cavitys (12), is equipped with the first magnet (8) in first cavity (12)；It is described
Pallet (9) are provided with below shell (1), inside offer several second cavitys, be equipped with second in second cavity
Magnet (10), first cavity (12) and corresponding setting above and below the second cavity are provided with above the through-hole (11) and lead
Stream cover (6), the edge of the pod (6) and the leading edge of blade (4) are connected as an entirety, under the pod (6)
Side is provided with axis (7), and the top of the axis (7) and the inner surface of pod (6) are tangent, and bottom is connected as with impeller housing (1)
One entirety.
2. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1 for reducing thrombus and occurring, it is characterised in that: institute
It states and is equipped in the top of pod (6) third magnet (13), is equipped in the top of the axis (7) and third magnet (13) phase
The 4th magnet (14) mutually attracted.
3. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1 or 2 for reducing thrombus and occurring, feature exist
In: the surface of the pod (6) is fairing ace, and the cross-sectional area of top to bottom becomes larger.
4. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 3 for reducing thrombus and occurring, it is characterised in that: institute
The inner surface for stating pod (6) is provided with several diversion trenches (15), and the diversion trench (15) is along the top of pod (6) to water conservancy diversion
The edge of cover (6) extends radially.
5. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1 for reducing thrombus and occurring, it is characterised in that: institute
The diameter for stating axis (7) is less than the diameter of through-hole (11), forms annular space between the two.
6. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 4 for reducing thrombus and occurring, it is characterised in that: institute
The number for stating diversion trench (15) is 1-10 item.
7. the Single Degree of Freedom Magnetic suspension centrifugal impeller according to claim 1 for reducing thrombus and occurring, it is characterised in that: institute
The quantity for stating blade (4) is 2-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304667.6U CN208448253U (en) | 2017-09-30 | 2017-09-30 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721304667.6U CN208448253U (en) | 2017-09-30 | 2017-09-30 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
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| Publication Number | Publication Date |
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| CN208448253U true CN208448253U (en) | 2019-02-01 |
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| CN201721304667.6U Active CN208448253U (en) | 2017-09-30 | 2017-09-30 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469168A (en) * | 2017-09-30 | 2017-12-15 | 北京安生生物技术有限责任公司 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
| CN110064084A (en) * | 2019-04-03 | 2019-07-30 | 湖州露湖鄱生物科技有限公司 | A kind of magnetic suspension centrifugal blood pump |
| CN112516454A (en) * | 2020-11-26 | 2021-03-19 | 深圳汉诺医疗科技有限公司 | Magnetic suspension artificial heart pump |
-
2017
- 2017-09-30 CN CN201721304667.6U patent/CN208448253U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469168A (en) * | 2017-09-30 | 2017-12-15 | 北京安生生物技术有限责任公司 | A kind of Single Degree of Freedom Magnetic suspension centrifugal impeller for reducing thrombus and occurring |
| CN107469168B (en) * | 2017-09-30 | 2024-04-02 | 北京安生生物技术有限责任公司 | Single-degree-of-freedom magnetic suspension centrifugal impeller for reducing thrombus |
| CN110064084A (en) * | 2019-04-03 | 2019-07-30 | 湖州露湖鄱生物科技有限公司 | A kind of magnetic suspension centrifugal blood pump |
| CN112516454A (en) * | 2020-11-26 | 2021-03-19 | 深圳汉诺医疗科技有限公司 | Magnetic suspension artificial heart pump |
| CN112516454B (en) * | 2020-11-26 | 2024-04-09 | 深圳汉诺医疗科技有限公司 | Magnetic suspension artificial heart pump |
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