CN2558386Y - Spiral mixed-flow impeller for auxiliary ventricle blood pump - Google Patents
Spiral mixed-flow impeller for auxiliary ventricle blood pump Download PDFInfo
- Publication number
- CN2558386Y CN2558386Y CN 02238176 CN02238176U CN2558386Y CN 2558386 Y CN2558386 Y CN 2558386Y CN 02238176 CN02238176 CN 02238176 CN 02238176 U CN02238176 U CN 02238176U CN 2558386 Y CN2558386 Y CN 2558386Y
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- China
- Prior art keywords
- spiral
- impeller
- blood pump
- cone
- cone axis
- 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.)
- Expired - Lifetime
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- 210000004369 blood Anatomy 0.000 title claims abstract description 27
- 239000008280 blood Substances 0.000 title claims abstract description 27
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000002861 ventricular Effects 0.000 abstract 1
- 230000002949 hemolytic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 206010018910 Haemolysis Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000008588 hemolysis Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010019280 Heart failures Diseases 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 241000283898 Ovis Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 206010007625 cardiogenic shock Diseases 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- External Artificial Organs (AREA)
Abstract
The utility model relates to a spiral blending-flow impeller for ventricular assisting blood pump, which is composed of a cone axis 1 and a spiral single impeller, wherein the top of the cone axis 1 is provided with a spherical cone head 11, a spiral single impeller 2 is arranged on the cone surface, the spiral blending impeller is integrated with axial-flow and centrifugal pumps, so that the movement of the blood in the cone blending-flow impeller is slow without any abrupt-turning, thereby having less damage on the blood. The utility model has simple structure and easy maintenance.
Description
Technical field
This utility model relates to a kind of impeller of pump, the spiral mixed flow impeller of using in particular for ventricle auxiliary blood pump.
Background technology
The statistics of World Health Organization (WHO) shows that heart failure disease and cardiogenic shock disease are day by day seriously threatening human beings'health.Therefore,, then can make very big contribution, must have the social benefit and the prospect of marketing widely for the cause of healing the wounded and rescue the dying if can develop the artificial heart auxiliary device.Through looking into, that uses in the artificial heart auxiliary device has pulsating blood pump and rotary blood pump two big classes.And the pulsating blood pump life-span is shorter, and the rotary blood pump life-span is longer.So countries such as U.S., day, Europe all finish and develop rotary blood pump mutually.Use the mechanical pump pumping blood, require pump to have biocompatibility.In rotary blood pump, axial wheel (see figure 1) commonly used and centrifugal impeller, one of index of weighing its biocompatibility is hemolytic index (being after blood is carried by pump, the erythrocyte death toll that contains in the 100L blood).Show that after deliberation axial wheel is bad at high pressure and low discharge operating mode haemolysis performance, centrifugal impeller will suddenly turn 90 ° owing to inlet extremely exports and bend, and the haemolysis performance is also not so good.This just requires us to design the impeller of new model to satisfy the operation technique requirement of artificial heart auxiliary device.
Summary of the invention
According to background technology, the purpose of this utility model is to force blood progressively gentlely axial flow and Radial Flow to be become mixed flow for ventricle auxiliary-rotation blood pump provides a kind of can formation, improvement is by the loss of inlet to the change flow direction of outlet, thus a kind of spiral list vane type mixed flow impeller that is arranged on the diminished shaft of reduction hemolytic index.
To achieve these goals, this utility model is achieved through the following technical solutions:
A kind of ventricle auxiliary blood pump spiral mixed flow impeller, by cone axis (1), spiral list blade (2) is formed, wherein the geometry of cone axis (1) is a cone, be shaped on spherical spindle nose (11) at the top of cone axis (1), on its conical surface, be shaped on spiral list blade (2), be shaped on connecting hole in the bottom of cone axis (1) with motor shaft (41).
Owing to adopted technique scheme, the utlity model has following advantage and effect:
1, spiral mixed flow impeller of the present utility model is used for the XZ-1 heart pump.Through doing hemolytic test with Sanguis caprae seu ovis, its hemolytic index is NIH=(0.091 ± 0.009) g/100L, its work efficiency η=0.15.Similarity condition uses the axial flow blood pump impeller down, its hemolytic index is NIH=(0.18 ± 0.015) g/100L, its work efficiency η=0.13, the two is compared and uses spiral mixed flow impeller of the present utility model, than using the axial flow blood pump impeller, its hemolytic index reduced near half, it is nearly 2% that work efficiency has improved, visible effect of the present utility model is fine.
2, this utility model is simple in structure, and working service is repaired simple and easy.
Description of drawings
Fig. 1 is the structural upright sketch map of the axial flow blood pump impeller commonly used
Fig. 2 is this utility model structural entity schematic perspective view
Fig. 3 is this utility model operating position sketch map in heart pump
Among the figure: 1-cone axis, 11-spindle nose, 2-spiral list blade, the 3-pump housing, 31-inlet, 32-outlet, 4-motor, 41-motor shaft, 5-bearing, 6-lip seal pad, 7-sealing gasket
The specific embodiment
By shown in Figure 2, this utility model is by cone axis 1, spiral list blade 2 is formed, wherein the geometry of cone axis 1 is a cone, be shaped on spherical spindle nose 11 at the top of cone axis 1, on its conical surface, be shaped on spiral list blade 2, be shaped on connecting hole (not shown) in the bottom of cone axis 1 with motor shaft 41.
As seen from the figure, the spiral mixed flow impeller can integrate axial flow and centrifugal two kinds of pumping principles, make blood enter the conical entrance that flows to mixed flow impeller behind the pump earlier, produce axially-movable along blade passage then, meanwhile rotatablely moving of conical mixed flow impeller can produce the centrifugal pumping effect, therefore, the motion of blood in impeller eased up, non-vortex, do not take a sudden turn fully, so very little to the damage of blood.
By figure also as can be known, spherical spindle nose 11 can convection cell plays and increases the inductive effect of steady shunting, and on the conical surface, good basis has been prepared in the vortex-free motion on blade to follow-up, and the aspect has also satisfied the requirement of safe handling in addition.
The coning angle of cone axis 1, the helical angle of spiral list blade 2 and a pitch of fins directly have influence on service behaviour and the work efficiency of blood pump with the spiral mixed flow impeller, and these parameters require to determine according to concrete operation technique.
By shown in Figure 3, its heart pump is by the pump housing 3, motor 4, and bearing 5, lip seal pad 6, sealing gasket 7 is formed, and wherein cone axis 1 is affixed by the connecting hole and the motor shaft 41 usefulness keys of cone axis 1 bottom.
Claims (2)
1, a kind of ventricle auxiliary blood pump spiral mixed flow impeller, mainly by cone axis (1), spiral list blade (2) is formed, it is characterized in that: the geometry of cone axis (1) is a cone, be shaped on spherical spindle nose (11) at the top of cone axis (1), on its conical surface, be shaped on spiral list blade (2), be shaped on connecting hole in the bottom of cone axis (1) with motor shaft (41).
2, ventricle auxiliary blood pump according to claim 1 spiral mixed flow impeller is characterized in that: at the axle end system connecting hole of cone axis (1), affixed with key and motor shaft (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238176 CN2558386Y (en) | 2002-06-19 | 2002-06-19 | Spiral mixed-flow impeller for auxiliary ventricle blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238176 CN2558386Y (en) | 2002-06-19 | 2002-06-19 | Spiral mixed-flow impeller for auxiliary ventricle blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558386Y true CN2558386Y (en) | 2003-07-02 |
Family
ID=33711938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02238176 Expired - Lifetime CN2558386Y (en) | 2002-06-19 | 2002-06-19 | Spiral mixed-flow impeller for auxiliary ventricle blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558386Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488577C (en) * | 2006-02-10 | 2009-05-20 | 北京航空航天大学 | Outer bearing type artificial heart blood pump |
| CN105498002A (en) * | 2015-12-23 | 2016-04-20 | 丰凯医疗器械（上海）有限公司 | Blood pumping impeller |
| CN106902404A (en) * | 2015-12-23 | 2017-06-30 | 丰凯医疗器械（上海）有限公司 | Percutaneous auxiliary blood pumping device |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| CN116317290A (en) * | 2022-09-20 | 2023-06-23 | 安徽通灵仿生科技有限公司 | Catheter pump motor |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN116785583A (en) * | 2022-03-15 | 2023-09-22 | 上海微创心力医疗科技有限公司 | Impeller structure, heart pump and heart assist system |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US12121713B2 (en) | 2019-09-25 | 2024-10-22 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible blood conduits |
| US12161857B2 (en) | 2018-07-31 | 2024-12-10 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12220570B2 (en) | 2018-10-05 | 2025-02-11 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12409310B2 (en) | 2019-12-11 | 2025-09-09 | Shifamed Holdings, Llc | Descending aorta and vena cava blood pumps |
| US12465748B2 (en) | 2019-08-07 | 2025-11-11 | Supira Medical, Inc. | Catheter blood pumps and collapsible pump housings |
-
2002
- 2002-06-19 CN CN 02238176 patent/CN2558386Y/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100488577C (en) * | 2006-02-10 | 2009-05-20 | 北京航空航天大学 | Outer bearing type artificial heart blood pump |
| CN105498002A (en) * | 2015-12-23 | 2016-04-20 | 丰凯医疗器械（上海）有限公司 | Blood pumping impeller |
| CN106902404A (en) * | 2015-12-23 | 2017-06-30 | 丰凯医疗器械（上海）有限公司 | Percutaneous auxiliary blood pumping device |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12161857B2 (en) | 2018-07-31 | 2024-12-10 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US12220570B2 (en) | 2018-10-05 | 2025-02-11 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US12465748B2 (en) | 2019-08-07 | 2025-11-11 | Supira Medical, Inc. | Catheter blood pumps and collapsible pump housings |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US12121713B2 (en) | 2019-09-25 | 2024-10-22 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible blood conduits |
| US12102815B2 (en) | 2019-09-25 | 2024-10-01 | Shifamed Holdings, Llc | Catheter blood pumps and collapsible pump housings |
| US12409310B2 (en) | 2019-12-11 | 2025-09-09 | Shifamed Holdings, Llc | Descending aorta and vena cava blood pumps |
| CN116785583A (en) * | 2022-03-15 | 2023-09-22 | 上海微创心力医疗科技有限公司 | Impeller structure, heart pump and heart assist system |
| CN116317290A (en) * | 2022-09-20 | 2023-06-23 | 安徽通灵仿生科技有限公司 | Catheter pump motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING AEROSPACE DRIVING FORCE INSTITUTE Free format text: FORMER NAME OR ADDRESS: NO.11 INST (BEIJING), CHINESE AEROSPACE SCI. + TECH. GROUP CORP. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Beijing Inst. of Aerospace Dynamics Patentee before: No. 11 Research Institute (Beijing), China Aerospace Science and Technology Coop |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120619 Granted publication date: 20030702 |