CN208809183U - A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump - Google Patents
A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump Download PDFInfo
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- CN208809183U CN208809183U CN201721282844.5U CN201721282844U CN208809183U CN 208809183 U CN208809183 U CN 208809183U CN 201721282844 U CN201721282844 U CN 201721282844U CN 208809183 U CN208809183 U CN 208809183U
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- centrifugal pump
- artificial heart
- cover
- flow guide
- pod
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Abstract
The utility model provides a kind of pod for artificial heart centrifugal pump and a kind of artificial heart centrifugal pump, it is set at the suction inlet of centrifugal pump inner impeller and is connect with the blade in impeller, it includes top closed, bottom opening cover, the cross-sectional area of the opening of the top of the cover to bottom becomes larger, the outer surface of the cover is provided with several flow guide bars, inner surface is provided with several diversion trenches, the flow guide bar is extended from the top of the outer surface of cover to bottom, and the diversion trench is extended from the top of the inner surface of cover to bottom.The diversion trench of water conservancy diversion cover inner surface setting described in the utility model can promote the blood flow between diversion trench inner surface, reduce blood in the delay of deflection cone bottom, reduce the generation of thrombus.
Description
Technical field
The utility model belongs to medical instruments field, more particularly, to a kind of pod for artificial heart centrifugal pump.
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
The problem of certainly donor lacks, artificial heart can be divided into full artificial heart and ventricular assist device from working principle.Artificial heart
In most important component be impeller, it is haemolysis caused by heart pump operation process that artificial heart faces maximum problem at this stage
And blood coagulation problem.The development experience of artificial heart beating pump has the rotary pump of axis and a process of magnetic suspension pump, wherein magnetcisuspension
Floating pump includes that magnetically levitated centrifugal pump and magnetic levitation axial flow pump, and can effectively solve mechanical bearing and asks the destruction and sealing of haemocyte
Topic.
Artificial heart at this stage due to discontinuity, can be led when user is in the active procedures such as crouch and lie
The pump housing is caused to be unable to even running, in addition, blood, which enters in impeller, directly and blade contact to cause grinding to blood and broken
It is bad.
Summary of the invention
In view of this, the utility model is directed to a kind of pod for artificial heart centrifugal pump, it is above-mentioned to solve
Problem.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of pod for artificial heart centrifugal pump, the pod are set to the sucking of artificial heart pump's inner impeller
It is connect at mouthful and with the blade in impeller comprising top closed, bottom opening cover, top to the bottom of the cover
The cross-sectional area of opening becomes larger, and the outer surface of the cover is provided with several flow guide bars, and inner surface is provided with several
Diversion trench, the flow guide bar from the top of the outer surface of cover to bottom extend, the diversion trench by cover inner surface top
Portion extends to bottom.
Further, the flow guide bar is the radial protrusion extended from covering on top to bottom, edge and cover
Outer surface rounding off, form the round and smooth curved surface to concave between the adjacent flow guide bar.
Further, the vertical range between the minimum point of the curved surface and the highest point of flow guide bar is 0.2-10mm.
Further, the round and smooth connection of blade in the end and impeller of the flow guide bar, and flow guide bar is along where blade
Curve to the top of cover outer surface extend.
Further, the quantity of the flow guide bar is 4-11 item.
Further, the diversion trench extends along the curve where blade to the top of the inner surface of the shell.
Further, the width of the diversion trench is 0.3-11mm, depth 0.2-1.5mm.
Further, the quantity of the diversion trench is 1-10 item.
The utility model also proposes that one kind is used for artificial heart centrifugal pump, is provided with above-mentioned lead in the impeller of the centrifugal pump
Stream cover.
Compared with the existing technology, the pod described in the utility model for artificial heart centrifugal pump has following excellent
Gesture:
(1) diversion trench that the water conservancy diversion cover inner surface described in the utility model for artificial heart centrifugal pump is arranged can promote
Blood flow between diversion trench inner surface reduces blood in the delay of deflection cone bottom, reduces the generation of thrombus；
(2) protrusion of the water conservancy diversion cover outer surface described in the utility model for artificial heart centrifugal pump can enhance deflection cone
The intensity connected with blade guarantees that deflection cone is firm in rotary course；
(3) curved surface of the water conservancy diversion cover outer surface described in the utility model for artificial heart centrifugal pump can be to inflow pump
The case where fluid plays guide functions, and the outer surface of the pod that compares is same thickness, the connection curved surface between flow guide bar can have
Effect increases the channel volume that fluid enters in pump, is conducive to blood flow.
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 be the utility model embodiment described in for artificial heart centrifugal pump pod stereoscopic schematic diagram (by
After Fig. 1 is adjusted to the lines figure of black and white, the shape and structure of flow guide bar can not clearly illustrate, therefore part has been carried out in Fig. 1
Rendering)；
Fig. 2 is the front view structure signal described in the utility model embodiment for the pod of artificial heart centrifugal pump
Figure；
Fig. 3 is the D-D sectional view described in the utility model embodiment for the pod of artificial heart centrifugal pump.
Description of symbols:
1, cover；2, flow guide bar；3, 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 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, can be directly connected, it can also be indirectly connected through an intermediary.For the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood by concrete condition.
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 pod for artificial heart centrifugal pump, pod are set to artificial heart pump's internal lobe
It is connect at the suction inlet of wheel and with the blade in impeller comprising top closed, bottom opening cover, the top bottom of to of cover
The cross-sectional area of the opening in portion becomes larger.
As shown in figures 1 and 3, the outer surface of cover is provided with 4-11 flow guide bar, and flow guide bar constitutes the " bone of pod
Bone bracket ", flow guide bar are extended from the top of the outer surface of cover to bottom, the round and smooth company of blade in the end and impeller of flow guide bar
Connect, and flow guide bar along where blade curve or straight line to the top of cover outer surface extend.The flow guide bar is by cover top
The outer surface rounding off of the radial protrusion that portion extends to bottom, edge and cover is formed between adjacent flow guide bar
The round and smooth curved surface to concave.Flow liquid from the round and smooth curved surface to direction blade, the minimum point of curved surface and flow guide bar
Vertical range between highest point is 0.2-10mm.Pod is collectively constituted by the curved surface between flow guide bar and adjacent guide item
Outer surface.The structure to enter pump fluid rise guide functions, while the flow guide bar being connected with blade can increase pod and
The intensity of blade connection, guarantees the stability of connection.
As shown in Fig. 2, the inner surface of cover is provided with 1-10 diversion trench, diversion trench from the top of the inner surface of cover to
Bottom extends.Diversion trench along where blade curve or straight line to the top of the inner surface of the shell extend.The width of diversion trench is
0.3-11mm, depth 0.2-1.5mm.The effect of water conservancy diversion cover inner surface diversion trench: in rotary course, blood can pass through water conservancy diversion
The diversion trench flowing for boring inner surface, reduces blood and is trapped in deflection cone lower end, to reduce thrombus.
The novel guide cone can be applied in the centrifugal pump of any artificial heart, including single-degree-of-freedom magnetically levitated centrifugal pump and
Suspension of five-freedom degree magnetic centrifugal pump；The structure feature of pod the inner surface and the outer surface can be respectively used to different deflection cones, can also
It exists simultaneously on same pod.
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 (8)
1. a kind of pod for artificial heart centrifugal pump, it is characterised in that: the pod is set in artificial heart pump
It is connect at the suction inlet of impeller and with the blade in impeller comprising top closed, bottom opening cover, the top of the cover
The cross-sectional area of the opening of portion to bottom becomes larger, and the outer surface of the cover is provided with several flow guide bars, and inner surface is set
Several diversion trenches are equipped with, the flow guide bar is extended from the top of the outer surface of cover to bottom, and the diversion trench is by cover
The top of inner surface extends to bottom, and the flow guide bar is the radial protrusion extended from covering on top to bottom, edge
With the outer surface rounding off of cover, the round and smooth curved surface to concave is formed between the adjacent flow guide bar.
2. the pod according to claim 1 for artificial heart centrifugal pump, it is characterised in that: the curved surface it is minimum
Vertical range between point and the highest point of flow guide bar is 0.2-10mm.
3. the pod according to claim 1 for artificial heart centrifugal pump, it is characterised in that: the end of the flow guide bar
End and the round and smooth connection of blade in impeller, and flow guide bar extends along the curve where blade to the top of cover outer surface.
4. the pod according to claim 1 for artificial heart centrifugal pump, it is characterised in that: the number of the flow guide bar
Amount is 4-11 item.
5. the pod according to claim 1 for artificial heart centrifugal pump, it is characterised in that: the diversion trench along
Curve where blade extends to the top of the inner surface of the shell.
6. the pod according to claim 5 for artificial heart centrifugal pump, it is characterised in that: the width of the diversion trench
Degree is 0.3-11mm, depth 0.2-1.5mm.
7. the pod according to claim 5 for artificial heart centrifugal pump, it is characterised in that: the number of the diversion trench
Amount is 1-10 item.
8. a kind of artificial heart centrifugal pump, it is characterised in that: be provided in the impeller of the centrifugal pump any in claim 1-7
The pod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282844.5U CN208809183U (en) | 2017-09-30 | 2017-09-30 | A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721282844.5U CN208809183U (en) | 2017-09-30 | 2017-09-30 | A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208809183U true CN208809183U (en) | 2019-05-03 |
Family
ID=66267121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721282844.5U Active CN208809183U (en) | 2017-09-30 | 2017-09-30 | A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208809183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485740A (en) * | 2017-09-30 | 2017-12-19 | 清华大学天津高端装备研究院 | A kind of kuppe in artificial heart centrifugal pump |
-
2017
- 2017-09-30 CN CN201721282844.5U patent/CN208809183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485740A (en) * | 2017-09-30 | 2017-12-19 | 清华大学天津高端装备研究院 | A kind of kuppe in artificial heart centrifugal pump |
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