CN107485740A - A kind of kuppe in artificial heart centrifugal pump - Google Patents
A kind of kuppe in artificial heart centrifugal pump Download PDFInfo
- Publication number
- CN107485740A CN107485740A CN201710952042.9A CN201710952042A CN107485740A CN 107485740 A CN107485740 A CN 107485740A CN 201710952042 A CN201710952042 A CN 201710952042A CN 107485740 A CN107485740 A CN 107485740A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- artificial heart
- kuppe
- cover body
- flow guide
- 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.)
- Pending
Links
Classifications
-
- 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
- A61M2206/00—Characteristics of a physical parameter; associated device therefor
- A61M2206/10—Flow characteristics
Abstract
The invention provides a kind of kuppe in artificial heart centrifugal pump, it is arranged at the suction inlet of centrifugal pump inner impeller and is connected with the blade in impeller, it includes the cover body of top seal, bottom opening, the cross-sectional area of the opening of the top of the cover body to bottom becomes larger, the outer surface of the cover body is provided with some flow guide bars, inner surface setting has some guiding gutters, the flow guide bar is extended from the top of the outer surface of cover body to bottom, and the top of the guiding gutter from the inner surface of cover body extends to bottom.The guiding gutter of kuppe inner surface setting of the present invention can promote the blood flow between guiding gutter inner surface, reduce blood in the delay of deflection cone bottom, reduce the generation of thrombus.
Description
Technical field
The invention belongs to medical instruments field, more particularly, to a kind of kuppe in artificial heart centrifugal pump.
Background technology
The serious heart failure incidence of disease rises year by year, but is available for that the heart donor of transplanting is considerably less, and artificial heart can be solved effectively
The problem of certainly donor lacks, artificial heart can be divided into TAH and ventricular assist device from operation principle.Artificial heart
In most important part be impeller, the problem of artificial heart faces maximum at this stage is haemolysis caused by heart pump operation process
With blood coagulation problem.The development experience of artificial heart beating pump, there are the rotary pump of axle and a process of magnetic suspension pump, wherein magnetcisuspension
Floating pump includes magnetically levitated centrifugal pump and magnetic levitation axial flow pump, can effectively solve destruction and sealing of the mechanical bearing to haemocyte and ask
Topic.
Artificial heart at this stage, when user is in the sleeping and active procedure such as lie is carried out, due to discontinuity, it can lead
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.
The content of the invention
In view of this, the present invention is directed to propose a kind of kuppe in artificial heart centrifugal pump, to solve above-mentioned ask
Topic.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of kuppe in artificial heart centrifugal pump, the kuppe are arranged at the suction of artificial heart pump's inner impeller
Porch is simultaneously connected with the blade in impeller, and it includes the cover body of top seal, bottom opening, top to the bottom of the cover body
The cross-sectional area of opening become larger, the outer surface of the cover body is provided with some flow guide bars, and inner surface setting has some
Bar guiding gutter, the flow guide bar are extended from the top of the outer surface of cover body to bottom, the guiding gutter by cover body inner surface
Top extends to bottom.
Further, the flow guide bar is the radial projection extended from covering on top to bottom, its edge and cover body
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 peak 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
Top from curve to cover body outer surface extend.
Further, the quantity of the flow guide bar is 4-11 bars.
Further, top extension of the guiding gutter along the curve where blade to the inner surface of the shell.
Further, the width of the guiding gutter is 0.3-11mm, depth 0.2-1.5mm.
Further, the quantity of the guiding gutter is 1-10 bars.
The present invention also proposes that one kind is used for artificial heart centrifugal pump, and above-mentioned water conservancy diversion is provided with the impeller of the centrifugal pump
Cover.
Relative to prior art, the kuppe of the present invention in artificial heart centrifugal pump has the advantage that：
(1) guiding gutter of the kuppe inner surface setting of the present invention in artificial heart centrifugal pump can promote to lead
Blood flow between chute inner surface, blood is reduced in the delay of deflection cone bottom, reduces the generation of thrombus；
(2) projection of the water conservancy diversion cover outer surface of the present invention in artificial heart centrifugal pump can strengthen deflection cone and
The intensity of blade connection, ensure that deflection cone is firm in rotary course；
(3) curved surface of the water conservancy diversion cover outer surface of the present invention in artificial heart centrifugal pump can be to the stream of inflow pump
Body plays guide functions, and the outer surface of the kuppe that compares is the situation of same thickness, and the connection curved surface between flow guide bar can be effective
Increase the channel volume that fluid enters in pump, be advantageous to blood flow.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 be the embodiment of the present invention described in be used for artificial heart centrifugal pump in kuppe schematic perspective view (due to
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
Render)；
Fig. 2 is the main structure diagram of the kuppe being used in artificial heart centrifugal pump described in the embodiment of the present invention；
Fig. 3 is the D-D profiles of the kuppe being used in artificial heart centrifugal pump described in the embodiment of the present invention.
Description of reference numerals：
1st, cover body；2nd, flow guide bar；3rd, guiding gutter.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be to mechanically connect, can be joined directly together, can also be indirectly connected by intermediary.For the ordinary skill people of this area
For member, the concrete meaning of above-mentioned term in the present invention can be understood by concrete condition.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As Figure 1-3, a kind of kuppe in artificial heart centrifugal pump, kuppe are arranged in artificial heart pump
It is connected at the suction inlet of impeller and with the blade in impeller, it includes the cover body of top seal, bottom opening, and the top of cover body is extremely
The cross-sectional area of the opening of bottom becomes larger.
As shown in figures 1 and 3, the outer surface of cover body is provided with 4-11 bar flow guide bars, and flow guide bar constitutes the " bone of kuppe
Bone support ", flow guide bar are extended from the top of the outer surface of cover body to bottom, the round and smooth company of blade in the end and impeller of flow guide bar
Connect, and flow guide bar extends along the curve where blade or straight line to the top of cover body outer surface.The flow guide bar is by cover body top
The outer surface rounding off of the radial projection that portion extends to bottom, its edge and cover body, formed between adjacent flow guide bar
The round and smooth curved surface to concave.Liquid is set to be flowed from the round and smooth curved surface to direction blade, the minimum point of curved surface and flow guide bar
Vertical range between peak is 0.2-10mm.Kuppe is collectively constituted by the curved surface between flow guide bar and adjacent guide bar
Outer surface.The structure to enter pump fluid rise guide functions, while the flow guide bar being connected with blade can increase kuppe and
The intensity of blade connection, ensure the stability of connection.
As shown in Fig. 2 the inner surface setting of cover body has a 1-10 bar guiding gutters, guiding gutter from cover body inner surface top to
Bottom extends.Guiding gutter extends along the curve where blade or straight line to the top of the inner surface of the shell.The width of guiding gutter is
0.3-11mm, depth 0.2-1.5mm.The effect of water conservancy diversion cover inner surface guiding gutter：In rotary course, blood can pass through water conservancy diversion
The guiding gutter flowing of inner surface is bored, blood is reduced and is trapped in deflection cone lower end, so as 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 architectural feature of water conservancy diversion cover inner surface and outer surface can be respectively used to different deflection cones, also may be used
It is present in simultaneously on same kuppe.
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
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (9)
- A kind of 1. kuppe in artificial heart centrifugal pump, it is characterised in that：The kuppe is arranged at artificial heart pump It is connected at the suction inlet of inner impeller and with the blade in impeller, it includes the cover body of top seal, bottom opening, the cover body The cross-sectional area of the opening of top to bottom becomes larger, and the outer surface of the cover body is provided with some flow guide bars, inner surface Some guiding gutters are provided with, the flow guide bar is extended from the top of the outer surface of cover body to bottom, and the guiding gutter is by cover body Inner surface top to bottom extend.
- 2. the kuppe according to claim 1 in artificial heart centrifugal pump, it is characterised in that：The flow guide bar is The outer surface rounding off of the radial projection extended from covering on top to bottom, its edge and cover body, described adjacent leads The round and smooth curved surface to concave is formed between stream bar.
- 3. the kuppe according to claim 2 in artificial heart centrifugal pump, it is characterised in that：The curved surface is most Vertical range between low spot and the peak of flow guide bar is 0.2-10mm.
- 4. the kuppe according to claim 2 in artificial heart centrifugal pump, it is characterised in that：The flow guide bar End and the round and smooth connection of blade in impeller, and top extension of the flow guide bar along the curve where blade to cover body outer surface.
- 5. the kuppe according to claim 1 in artificial heart centrifugal pump, it is characterised in that：The flow guide bar Quantity is 4-11 bars.
- 6. the kuppe according to claim 1 in artificial heart centrifugal pump, it is characterised in that：The guiding gutter edge Curve where blade extends to the top of the inner surface of the shell.
- 7. the kuppe according to claim 6 in artificial heart centrifugal pump, it is characterised in that：The guiding gutter Width is 0.3-11mm, depth 0.2-1.5mm.
- 8. the kuppe according to claim 6 in artificial heart centrifugal pump, it is characterised in that：The guiding gutter Quantity is 1-10 bars.
- 9. one kind is used for artificial heart centrifugal pump, it is characterised in that：It is provided with the impeller of the centrifugal pump in claim 1-8 Any described kuppe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952042.9A CN107485740A (en) | 2017-09-30 | 2017-09-30 | A kind of kuppe in artificial heart centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952042.9A CN107485740A (en) | 2017-09-30 | 2017-09-30 | A kind of kuppe in artificial heart centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107485740A true CN107485740A (en) | 2017-12-19 |
Family
ID=60653514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710952042.9A Pending CN107485740A (en) | 2017-09-30 | 2017-09-30 | A kind of kuppe in artificial heart centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107485740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111798430A (en) * | 2020-07-05 | 2020-10-20 | 张晓东 | Platform and method for identifying thrombus on axis of centrifugal pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097186A (en) * | 1976-11-18 | 1978-06-27 | Worthington Pump, Inc. | Multi-stage ring type centrifugal pumps with inducer means |
| US6527699B1 (en) * | 2000-06-02 | 2003-03-04 | Michael P. Goldowsky | Magnetic suspension blood pump |
| US20090149950A1 (en) * | 2006-05-31 | 2009-06-11 | Richard Wampler | Heart assist device |
| US20130294886A1 (en) * | 2008-12-24 | 2013-11-07 | Dominick Daniel Martino | Prime mover |
| CN103702693A (en) * | 2011-07-18 | 2014-04-02 | 卡龙心脏科技有限公司 | Cardiac pump |
| CN208809183U (en) * | 2017-09-30 | 2019-05-03 | 清华大学天津高端装备研究院 | A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump |
-
2017
- 2017-09-30 CN CN201710952042.9A patent/CN107485740A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097186A (en) * | 1976-11-18 | 1978-06-27 | Worthington Pump, Inc. | Multi-stage ring type centrifugal pumps with inducer means |
| US6527699B1 (en) * | 2000-06-02 | 2003-03-04 | Michael P. Goldowsky | Magnetic suspension blood pump |
| US20090149950A1 (en) * | 2006-05-31 | 2009-06-11 | Richard Wampler | Heart assist device |
| US20130294886A1 (en) * | 2008-12-24 | 2013-11-07 | Dominick Daniel Martino | Prime mover |
| CN103702693A (en) * | 2011-07-18 | 2014-04-02 | 卡龙心脏科技有限公司 | Cardiac pump |
| CN208809183U (en) * | 2017-09-30 | 2019-05-03 | 清华大学天津高端装备研究院 | A kind of pod and a kind of artificial heart centrifugal pump for artificial heart centrifugal pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111798430A (en) * | 2020-07-05 | 2020-10-20 | 张晓东 | Platform and method for identifying thrombus on axis of centrifugal pump |
| CN111798430B (en) * | 2020-07-05 | 2021-03-26 | 西安医学院第二附属医院 | Platform and method for identifying thrombus on axis of centrifugal pump |
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