CN108671297A - Centrifugal pump device with filter - Google Patents
Centrifugal pump device with filter Download PDFInfo
- Publication number
- CN108671297A CN108671297A CN201810605526.0A CN201810605526A CN108671297A CN 108671297 A CN108671297 A CN 108671297A CN 201810605526 A CN201810605526 A CN 201810605526A CN 108671297 A CN108671297 A CN 108671297A
- Authority
- CN
- China
- Prior art keywords
- filter
- fluid
- pump device
- rotor
- centrifugal pump
- 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
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
Abstract
The present invention relates to bio-medical technology fields, and in particular to a kind of centrifugal pump device with filter can be applied to for example external ventricle circulatory assit system comprising：Enclosure of pump head, enclosure of pump head have vessel, fluid inlet and fluid outlet；Fluid is blood；Rotor, rotor are set in vessel, and rotor can suspend and rotate, and the centrifugal force generated using rotation is guided the fluid entered in vessel from fluid inlet to fluid outlet；Rotor includes the first magnetic part；Drive system, drive system include the second magnetic part, and the second magnetic part attracts each other with the first magnetic part；Fluid outlet is equipped with filter.In the fluid outlet of enclosure of pump head, filter is set, the filtration device structure includes mobile jib, multiple support portions and multiple interconnecting pieces, particularly suitable for being filtered and decomposing to thrombus, is inherently eliminated the safety problem that thrombus is brought, to extend the service life of blood pump, while enhancing safety in utilization.
Description
Technical field
The present invention relates to bio-medical technology fields, and in particular to one kind can be applied to for example external ventricle circulatory assit
The centrifugal pump device with filter of system.
Background technology
It is auxiliary that the Chinese patent literature of Publication No. CN205698666U discloses a kind of external non-built-in mode magnetic suspension ventricle
Centrifugal blood pump is helped, as shown in Figure 1, the patent document proposes to use heparin coating in blood pump inner wall and vane rotor surface, to subtract
The formation of few blood coagulation and thrombus.
It is found through experiment that above-mentioned heparin coating acts on limited, centrifugal blood pump device for reducing blood coagulation and the formation of thrombus
Inevitably still there is thrombosed problem when in use, sustainability and peace that blood pump uses cannot be met well
Full property requirement.
Invention content
In view of this, the purpose of the present invention is improving the prior art, a kind of centrifugation that the service life is longer, safer is provided
Formula pump installation.
Specifically, the above-mentioned purpose of the present invention is achieved through the following technical solutions：
A kind of centrifugal pump device, including：Enclosure of pump head, the enclosure of pump head have vessel, fluid inlet and fluid outlet；Institute
It is blood to state fluid；Rotor, the rotor are set in the vessel, and the rotor can suspend and rotate, and are generated using rotation
Centrifugal force the fluid entered in the vessel from the fluid inlet is guided to the fluid outlet；The rotor includes
First magnetic part；Drive system, the drive system include the second magnetic part, second magnetic part and described first
Magnetic part attracts each other；The fluid outlet is equipped with filter；It is characterized in that, the filter includes mobile jib and support
Body, the arranged direction of the mobile jib are parallel to the transmission direction of the fluid, and the supporter includes the runner with the fluid
Multiple support portions that wall fits, the supporter further include multiple interconnecting pieces for connecting the mobile jib.
The mobile jib, the multiple support portion and the approximate crown shape of the multiple interconnecting piece overall structure of the filter
Shape.
As a further improvement, the interconnecting piece is S-shaped flexible jointing-rod.
As a further improvement, described mobile jib one end is equipped with recoverer.Alternatively, the filter at least partly by can
The high molecular material and/or alloy material of degradation are formed.Preferably, degradable the materials'use lactic acid polymer and alloy
The combination of material.
As a further improvement, the surface of the inner wall of the enclosure of pump head and/or the rotor coats anticoagulant material
Coating.Preferably, the anticoagulant material includes hydrophilic polymer and/or haemocyanin.
As a further improvement, the filter is integrally formed with the enclosure of pump head or the filter is independent
Molding.
As a further improvement, the filter includes at least two, and at least two filter passes through twist-tie
Realization superposition is closed or is oppositely arranged to use.
Compared to the prior art, the present invention has the advantages that：
（1）In view of centrifugal blood pump device is inevitably present thrombosed problem when in use, in the stream of enclosure of pump head
Body outlet setting filter, which includes mobile jib, multiple support portions and multiple interconnecting pieces, particularly suitable for thrombus into
Row filtering and decomposition, are inherently eliminated the safety problem that thrombus is brought, and to extend the service life of blood pump, while enhancing makes
Use safety;
（2）On this basis, it is S-shaped flexible jointing-rod further to make interconnecting piece, has better mistake relative to straight-bar structure
Filter effect;
（3）On this basis, so that filter is individually recycled, alternatively, make filter at least partly by that can drop
The material of solution is formed.In this way, when the service life of filter is used up, easily it can be replaced or be reset;
（4）On this basis, it includes at least two further to make filter, and at least two filters are by reversing combination or phase
Superposition, which uses, to be realized to setting, to further enhance filter effect, is prolonged the service life;
（5）The considerations of for processability, filter and enclosure of pump head using being integrally formed, certain filter can also individually at
Type.
Description of the drawings
Fig. 1 is the structural schematic diagram of prior art pump installation；
Fig. 2 is the overall structure diagram of pump installation of the present invention；
Fig. 3 is the filter structure schematic representation of pump installation of the present invention；
Fig. 4 is the improvement schematic diagram of the filtration device structure of pump installation of the present invention；
Fig. 5 is that multiple filters of pump installation of the present invention are superimposed the schematic diagram used.
Reference sign：1, enclosure of pump head；2, rotor；3, drive system；4, filter；4-1, mobile jib；4-2, support
Body；4-3, recoverer.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing：
As shown in Fig. 2, a kind of centrifugal pump device of the present invention, including：Enclosure of pump head 1, enclosure of pump head 1 have vessel, fluid
Entrance and fluid outlet；Fluid is blood；Rotor 2, rotor 2 are set in vessel, and rotor 2 can suspend and rotate, and utilize rotation
The centrifugal force of generation guides the fluid entered in vessel from fluid inlet to fluid outlet；Rotor 2 includes the first magnetic portion
Part；Drive system 3, drive system 3 include the second magnetic part, and the second magnetic part attracts each other with the first magnetic part；Stream
Body exit is equipped with filter 4.
Fig. 3 shows that the concrete structure of filter 4, filter 4 include mobile jib 4-1 and supporter 4-2, the arrangement of mobile jib 4-1
It is oriented parallel to the transmission direction of fluid, supporter 4-2 includes the multiple support portions to fit with the flow path wall of fluid, supporter
4-2 further includes multiple interconnecting pieces for connecting mobile jib 4-1.Mobile jib 4-1, multiple support portions and the multiple interconnecting pieces of filter 4
The approximate crown shapes of overall structure.
Fig. 4 is especially further improved interconnecting piece, and it is specially S-shaped flexible jointing-rod to make interconnecting piece, relative to straight
Rod structure has better filter effect.
When the service life of filter 4 is used up, in order to make it easily be replaced or be reset, further make filtering
Device can be recycled individually, as shown in figure 3, being for example equipped with recoverer 4-3 in the one end mobile jib 4-1；Alternatively, making filter 4 extremely
Small part is formed by degradable material.Preferably, the combination of degradable materials'use lactic acid polymer and alloy material.
As a further improvement, the surface of the inner wall and/or rotor of enclosure of pump head coats anticoagulant material coating.It is preferred that
, anticoagulant material includes hydrophilic polymer and/or haemocyanin.
As being further improved for enhancing filter effect, it includes at least two to make filter, as shown in figure 5, two filterings
Device 4a, 4b realize that superposition uses by reversing to combine or be oppositely arranged, and to further enhance filter effect, extend and use the longevity
Life.
Finally, for processability the considerations of, for filter with enclosure of pump head using being integrally formed, certain filter can also be single
Alone become type.
It should be understood that the above-mentioned specific implementation mode of the present invention is only as citing, that is, spiritual not office of the invention
It is limited to content described in above-mentioned specific implementation mode, and should includes all possible etc. based on above-mentioned specific implementation mode
Effect transformation.
Claims (10)
1. a kind of centrifugal pump device, including：
Enclosure of pump head, the enclosure of pump head have vessel, fluid inlet and fluid outlet；
The fluid is blood；
Rotor, the rotor are set in the vessel, and the rotor can suspend and rotate, will using the centrifugal force that rotation generates
The fluid entered in the vessel from the fluid inlet is guided to the fluid outlet；
The rotor includes the first magnetic part；
Drive system, the drive system include the second magnetic part, second magnetic part and first magnetic part
It attracts each other；
The fluid outlet is equipped with filter；
It is characterized in that, the filter includes mobile jib and supporter, the arranged direction of the mobile jib is parallel to the fluid
Transmission direction, the supporter include the multiple support portions to fit with the flow path wall of the fluid, and the supporter further includes
Multiple interconnecting pieces for connecting the mobile jib.
2. centrifugal pump device according to claim 1, which is characterized in that the mobile jib of the filter, described more
A support portion and the approximate crown shapes of the multiple interconnecting piece overall structure.
3. centrifugal pump device according to claim 1, which is characterized in that the interconnecting piece is S-shaped flexible jointing-rod.
4. centrifugal pump device according to claim 1, which is characterized in that described mobile jib one end is equipped with recoverer.
5. centrifugal pump device according to claim 1, which is characterized in that the filter at least partly by degradable
High molecular material and/or alloy material formed.
6. centrifugal pump device according to claim 5, which is characterized in that the degradable materials'use lactic acid polymerization
The combination of object and alloy material.
7. centrifugal pump device according to claim 1, which is characterized in that the inner wall of the enclosure of pump head and/or described
The surface of rotor coats anticoagulant material coating.
8. centrifugal pump device according to claim 7, which is characterized in that the anticoagulant material includes hydrophilic polymer
Object and/or haemocyanin.
9. centrifugal pump device according to claim 1, which is characterized in that the filter and enclosure of pump head one
Molding or the filter are separately formed.
10. centrifugal pump device according to claim 1, which is characterized in that the filter includes at least two, described
At least two filters combine or are oppositely arranged realization superposition use by reversing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605526.0A CN108671297A (en) | 2018-06-13 | 2018-06-13 | Centrifugal pump device with filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605526.0A CN108671297A (en) | 2018-06-13 | 2018-06-13 | Centrifugal pump device with filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108671297A true CN108671297A (en) | 2018-10-19 |
Family
ID=63810869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810605526.0A Pending CN108671297A (en) | 2018-06-13 | 2018-06-13 | Centrifugal pump device with filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108671297A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135253A (en) * | 1976-11-30 | 1979-01-23 | Medtronic, Inc. | Centrifugal blood pump for cardiac assist |
| US20050288703A1 (en) * | 2004-06-25 | 2005-12-29 | Angiodynamics, Inc. | Blood clot filter |
| US20100185043A1 (en) * | 2007-03-20 | 2010-07-22 | Ventrassist Pty Ltd | Heart assist device, cannula and filter therefor |
| CN202326264U (en) * | 2011-11-03 | 2012-07-11 | 江苏海狮泵业制造有限公司 | Centrifugal pump with filter crushing device |
| CN105641762A (en) * | 2016-03-14 | 2016-06-08 | 正仁（北京）医疗仪器有限公司 | In-vitro non-implantable maglev heart chamber assisting centrifugal blood pump |
| CN106401818A (en) * | 2015-07-30 | 2017-02-15 | 德尔福技术有限公司 | Fluid delivery module |
| CN207261299U (en) * | 2017-08-14 | 2018-04-20 | 瑞安市博纳汽车部件有限公司 | Blade wheel structure for pump |
| CN209347744U (en) * | 2018-06-13 | 2019-09-06 | 苏州心擎医疗技术有限公司 | Centrifugal pump device with filter |
-
2018
- 2018-06-13 CN CN201810605526.0A patent/CN108671297A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135253A (en) * | 1976-11-30 | 1979-01-23 | Medtronic, Inc. | Centrifugal blood pump for cardiac assist |
| US20050288703A1 (en) * | 2004-06-25 | 2005-12-29 | Angiodynamics, Inc. | Blood clot filter |
| US20100185043A1 (en) * | 2007-03-20 | 2010-07-22 | Ventrassist Pty Ltd | Heart assist device, cannula and filter therefor |
| CN202326264U (en) * | 2011-11-03 | 2012-07-11 | 江苏海狮泵业制造有限公司 | Centrifugal pump with filter crushing device |
| CN106401818A (en) * | 2015-07-30 | 2017-02-15 | 德尔福技术有限公司 | Fluid delivery module |
| CN105641762A (en) * | 2016-03-14 | 2016-06-08 | 正仁（北京）医疗仪器有限公司 | In-vitro non-implantable maglev heart chamber assisting centrifugal blood pump |
| CN207261299U (en) * | 2017-08-14 | 2018-04-20 | 瑞安市博纳汽车部件有限公司 | Blade wheel structure for pump |
| CN209347744U (en) * | 2018-06-13 | 2019-09-06 | 苏州心擎医疗技术有限公司 | Centrifugal pump device with filter |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 801, 802, 803 and 804, Building 7, No. 188 Fuchunjiang Road, High-tech Zone, Suzhou, Jiangsu, 215000 Applicant after: Xinqing Medical (Suzhou) Co.,Ltd. Address before: Floor 1, Building 13, 101Park, No. 158, Jinfeng Road, Technopole, High tech Zone, Suzhou City, Jiangsu Province, 215163 Applicant before: SUZHOU XINQING MEDICAL TECHNOLOGY Co.,Ltd. |
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| CB02 | Change of applicant information |