CN209392477U - A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus - Google Patents
A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus Download PDFInfo
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- CN209392477U CN209392477U CN201721311019.3U CN201721311019U CN209392477U CN 209392477 U CN209392477 U CN 209392477U CN 201721311019 U CN201721311019 U CN 201721311019U CN 209392477 U CN209392477 U CN 209392477U
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- suspension
- thrombus
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Abstract
The utility model provides a kind of suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus, including stationary parts and vane rotor, stationary parts is shell, pump inlet and pump discharge are offered on shell, vane rotor includes the blade of setting inside the housing and cylindrical boss, and blade is along the circumferential direction uniformly arranged, and cylindrical through-hole is offered at the center of boss, the bottom of through-hole offers annular groove along the circumferencial direction of boss, is equipped with magnet in annular groove；It is provided with pallet below shell, the first cavity and the second cavity are provided in pallet, electromagnetic coil is provided in the first cavity, is provided with electromagnetic drive coil in the second cavity.Impeller described in the utility model use suspension of five-freedom degree magnetic Centrifugal Pump Design, the conventional centrifugal that compares impeller, vane rotor places completely and pump housing in, guarantee that blood is run in loop, lubrication, sealing and blood pollution problem are avoided, while calorific value is small, it is low in energy consumption.
Description
Technical field
The utility model belongs to field of medical device, more particularly, to a kind of five degree of freedom magnetic that can be reduced haemolysis and thrombus
Suspension centrifugal 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 can be reduced haemolysis and the suspension of five-freedom degree magnetic of thrombus is centrifugal
Impeller, the impeller are designed using suspension of five-freedom degree magnetic, are kept suspending using solenoid controlled rotor part, be driven using electromagnetism
Moving winding keeps rotating by rotor, the conventional centrifugal that compares impeller, and rotor part is placed completely in pump housing, guarantees blood
It is run in loop, avoids lubrication, sealing and blood pollution problem.The edge of rotor part is handled, and excellent
Change the distance between rotor and pump case, reduces grinding of the solid to haemocyte, reduce the generation of haemolysis.In operation can simultaneously
Increase blood to wash away solid wall surface, reduces the generation of blood coagulation and thrombus.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus, including stationary parts and impeller turn
Son, the stationary parts are shell, and the shell offers pump inlet and pump discharge, and the vane rotor includes being arranged outside
Blade inside shell, cylindrical boss and pod, the blade are uniformly arranged along the circumferencial direction of boss, the boss
Cylindrical through-hole is offered at center, the pod is set to the top of through-hole, the edge of the pod and blade
Leading edge connection, the bottom of the through-hole offers annular groove along the circumferencial direction of boss, is equipped in the annular groove
Magnet；
It is provided with pallet below the shell, multiple first cavitys and multiple second cavitys are provided in the pallet,
First cavity is surrounded on outside the boss setting, and the second cavity is set to the lower section of boss, is provided in first cavity
Electromagnetic coil is provided with electromagnetic drive coil in the second cavity.
Further, the distance between the outer profile of the vane rotor and shell are 0.2mm-10mm.
Further, the marginal portion or all roundings of the boss and blade or fillet.
Compared with the existing technology, described in the utility model to can be reduced haemolysis and the suspension of five-freedom degree magnetic of thrombus is centrifugal
Impeller has the advantage that
(1) the suspension of five-freedom degree magnetic receded disk impeller described in the utility model that can be reduced haemolysis and thrombus using five from
It is designed by degree magnetically levitated centrifugal pump, the conventional centrifugal that compares impeller, vane rotor is placed completely in pump housing, guarantees blood
It is run in loop, avoids lubrication, sealing and blood pollution problem, while calorific value is small, it is low in energy consumption；
(2) the suspension of five-freedom degree magnetic receded disk impeller described in the utility model that can be reduced haemolysis and thrombus is to impeller turn
The edge of son is handled, and optimizes the distance between vane rotor and shell, is reduced grinding of the solid to haemocyte, is reduced molten
The generation of blood；
(3) described in the utility model to can be reduced haemolysis and the suspension of five-freedom degree magnetic receded disk impeller of thrombus is being run
In, blood is flowed up from boss bottom along boss central through hole, reduces the generation of blood coagulation and thrombus.
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 the suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus described in the utility model embodiment
Cross-sectional view；
Fig. 2 is the suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus described in the utility model embodiment
The schematic perspective view of middle vane rotor；
Fig. 3 is the suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus described in the utility model embodiment
The bottom substance schematic diagram of middle vane rotor；
Fig. 4 is the suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus described in the utility model embodiment
In blood flow schematic diagram.
Description of symbols:
1, shell；2, pump inlet；3, pump discharge, 4, blade；5, boss；6, magnet；7, electromagnetic coil；8, electromagnetic drive line
Circle；9, through-hole；10, annular groove；11, pod.
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 1-3, a kind of suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus, including stationary part
Part and vane rotor, stationary parts are shell 1, and shell 1 offers pump inlet 2 and pump discharge 3, and vane rotor includes being arranged outside
Blade 4 inside shell 1, cylindrical boss 5, blade 4 are along the circumferential direction uniformly arranged, and offer cylinder at the center of boss 5
The through-hole 9 of shape.It mismatches to reduce internal solid shape and causes the grinding and destruction to blood, vane rotor further includes
Pod 11, pod 11 are set to the top of through-hole 9, and the edge of pod 11 is connect with the leading edge of blade 4.Through-hole 9
Bottom offers annular groove 10 along the circumferencial direction of boss 5, and magnet 6 is equipped in annular groove 10, and magnet 6 is encapsulated in groove
It is interior, cavity can also be opened up inside boss 5, in the cavity by the encapsulation of magnet 6；
As shown in Figure 1, the lower section of shell 1 is provided with pallet, multiple first cavitys and multiple second skies are provided in pallet
Chamber, the first cavity, which is surrounded on the outside of boss 5, to be arranged, and the second cavity is set to the lower section of boss 5, is provided in first cavity
Electromagnetic coil 7 is provided with electromagnetic drive coil 8 in second cavity.Electromagnetic coil 7 is respectively arranged in each first cavity.
The magnetic suspension receded disk impeller uses bearing-free technology.After electrical power, electromagnetic coil 7 produces under the function of current
Magnetisation field, under the influence of a magnetic field, vane rotor is stable to be suspended in shell 1.Electric current passes through electromagnetic drive coil 8 simultaneously,
Under magnetic fields, vane rotor rotates in shell 1.In the process of running, it is connect between vane rotor and shell 1 without machinery
Touching, avoids mutual frictional heat generation between solid components and damages to haemocyte, reduce the generation of haemolysis.
It, can be several by the outer surface of pod and inner surface setting in order to be further reduced grinding of the solid components to blood
(1-11 item) diversion trench, specifically, the surfaces externally and internally rounding off of the edge of diversion trench and pod 11, adjacent diversion trench
Between form the round and smooth curved surface to concave.Vertical range between the minimum point of the curved surface and the highest point of diversion trench is 0.2-
10mm, width 0.3-11mm.The round and smooth connection of blade 4 in the end and impeller of diversion trench, and diversion trench is along where blade
Curve to the top of 11 surfaces externally and internally of pod extend.
The distance between outer profile and shell 1 of vane rotor are 0.2mm-10mm.The marginal portion of boss 5 is all
Rounding or fillet.To avoid grinding of the solid components to haemocyte, the blade 4 of the receded disk impeller and the edge of boss 5, part
Or it is whole do rounding or fillet processing, this reduces the probability that haemolysis occurs to a certain extent.Meanwhile the vane rotor part
Larger apart from the distance between pump case 1, distance can allow blood effectively to pass through, be further reduced between 0.2mm-10mm
The generation of haemolysis.
As shown in figure 4, in actual operation, vane rotor is protected under the action of electromagnetic coil 7 and electromagnetic drive coil 8
Suspension and rotation in shell 1 are held, when blood flows into shell 1 from import 2, since rotor rotates the centrifugal force generated,
Blood flow direction outlet 3, completes blood flow process.In this process, blood has upward buoyance lift to the rotor part of rotation
Power effect, due to there is cylindrical through-hole 9 among boss 5, blood is from 5 bottom of boss along the through-hole 9 at 5 center of boss to upstream
It is dynamic, increase blood washing away to the through-hole 9 of 5 central cylindrical of 5 bottom of boss and boss, blood is avoided to be trapped in 5 bottom of boss,
Reduce the formation of blood coagulation and thrombus.
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 (3)
1. a kind of suspension of five-freedom degree magnetic receded disk impeller that can be reduced haemolysis and thrombus, it is characterised in that: the impeller includes quiet
Stop part and vane rotor, the stationary parts are shell (1), and the shell (1) offers pump inlet (2) and pump discharge (3),
The vane rotor includes blade (4), cylindrical boss (5) and pod (11) of the setting in shell (1) inside, described
Blade (4) is uniformly arranged along the circumferencial direction of boss (5), and cylindrical through-hole (9) is offered at the center of the boss (5),
The pod (11) is set to the top of through-hole (9), and the edge of the pod (11) is connect with the leading edge of blade (4),
The bottom of the through-hole (9) offers annular groove (10) along the circumferencial direction of boss (5), installation in the annular groove (10)
There are magnet (6)；
It is provided with pallet below the shell (1), multiple first cavitys and multiple second cavitys, institute are provided in the pallet
It states the first cavity and is surrounded on the outside of boss (5) and be arranged, the second cavity is set to the lower section of boss (5), sets in first cavity
It is equipped with electromagnetic coil (7), electromagnetic drive coil (8) is provided in the second cavity.
2. the suspension of five-freedom degree magnetic receded disk impeller according to claim 1 that can be reduced haemolysis and thrombus, feature exist
In: the distance between the outer profile of the vane rotor and shell (1) they are 0.2mm-10mm.
3. the suspension of five-freedom degree magnetic receded disk impeller according to claim 1 or 2 that can be reduced haemolysis and thrombus, feature
It is: the marginal portion or all roundings of the boss (5) and blade (4) or fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721311019.3U CN209392477U (en) | 2017-09-30 | 2017-09-30 | A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721311019.3U CN209392477U (en) | 2017-09-30 | 2017-09-30 | A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus |
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| Publication Number | Publication Date |
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| CN209392477U true CN209392477U (en) | 2019-09-17 |
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| CN201721311019.3U Active CN209392477U (en) | 2017-09-30 | 2017-09-30 | A kind of suspension of five-freedom degree magnetic receded disk impeller can be reduced haemolysis and thrombus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-09-30 CN CN201721311019.3U patent/CN209392477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107693869B (en) * | 2017-09-30 | 2024-04-02 | 北京安生生物技术有限责任公司 | Five-degree-of-freedom magnetic suspension centrifugal impeller capable of reducing hemolysis and thrombus |
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