CN205322884U - Novel axial -flow type artificial heart pump - Google Patents
Novel axial -flow type artificial heart pump Download PDFInfo
- Publication number
- CN205322884U CN205322884U CN201620002404.9U CN201620002404U CN205322884U CN 205322884 U CN205322884 U CN 205322884U CN 201620002404 U CN201620002404 U CN 201620002404U CN 205322884 U CN205322884 U CN 205322884U
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- magnetic suspension
- reluctance motor
- switched reluctance
- axial
- suspension switched
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Abstract
The utility model relates to an artificial heart pump field, the problem that solve are novel axial -flow type artificial heart pump who provides simple structure, control stability, low power dissipation. The device includes stator shell, radial permanent magnetism bearing, magnetic suspension switched reluctance motor stator core, magnetic suspension switched reluctance motor stator winding, axial electromagnetic bearing, blood input port, magnetic suspension switched reluctance motor rotor impeller, magnetic suspension pivot, blood delivery outlet and concave type mouth, be equipped with magnetic suspension switched reluctance motor rotor impeller in the middle of the magnetic suspension pivot, the axial left end is equipped with axial electromagnetic bearing, both ends are equipped with blood input port and blood delivery outlet respectively about the stator shell, and axial right side inner wall central point puts and is equipped with concave type mouth, and radial inner wall intermediate position is equipped with magnetic suspension switched reluctance motor stator core and magnetic suspension switched reluctance motor stator winding, and magnetic suspension switched reluctance motor stator core axial both sides are equipped with a radial permanent magnetism bearing respectively. The device can be used to the artificial heart pump field.
Description
Technical field
This utility model relates to a kind of artificial heart pump, particularly relates to a kind of Novel axial flow type artificial heart pump。
Background technology
Third generation artificial heart pump, adopts magnetic levitation technology, has without friction, and low-loss, simple in construction, efficiency advantages of higher, its control mode mainly includes active levitation, driven suspension and mix suspending。Wherein, active levitation is electromagnetic suspension, is characterized as being control flexibly, and system stability is high, but power consumption is bigger；Driven suspension is permanent magnet suspension, is characterized as being and regulates without electromagnetism, without power consumption, but driven suspension poor stability；In current artificial heart pump research adopt mix suspendings to control, i.e. electromagnetism and permanent magnetism mix suspending, on the basis of permanent magnet bias, in addition electromagnetism regulates, and while ensureing stable suspersion, reduces electromagnetic power consumption more。
Double winding 12/8 pole magnetic suspension switched reluctance motor, have rotating speed higher, without frictional dissipation, advantages of simple structure and simple, and double winding includes main winding and levitation force winding, and main winding provides motor torque, and levitation force winding realizes radial position and regulates, easy to control。
Summary of the invention
Technical problem to be solved in the utility model is: overcome the shortcomings such as existing artificial heart pump volume is big, structure is complicated, energy consumption is high, take magnetic levitation control technology and magnetic suspension switched reluctance motor actuation techniques, it is provided that a kind of size is little, simple in construction, control is stable, energy consumption is low Novel axial flow type artificial heart pump。Technical scheme is: a kind of Novel axial flow type artificial heart pump, including stator casing, radial permanent magnet bearing, magnetic suspension switched reluctance motor stator core, magnetic suspension switched reluctance motor stator winding, axial electromagnetic bearings, blood input port, magnetic suspension switched reluctance motor impeller of rotor, magnetic suspension rotating shaft, blood outlet and concave port；Being provided with magnetic suspension switched reluctance motor impeller of rotor in the middle of described magnetic suspension rotating shaft, axial left end is provided with axial electromagnetic bearings；Being respectively arranged at two ends with blood input port and blood outlet about described stator casing, axially inwall center, right side is provided with concave port, and inner radial wall centre position is provided with magnetic suspension switched reluctance motor stator core；Described magnetic suspension switched reluctance motor stator core is wound with magnetic suspension switched reluctance motor stator winding；Described magnetic suspension switched reluctance motor stator core is axially respectively provided on two sides with a radial permanent magnet bearing。
The technical solution of the utility model also has: described magnetic suspension switched reluctance motor stator core, inclined double wedge shape；Described magnetic suspension switched reluctance motor impeller of rotor, inclined foliaceous, drive blood to flow vertically during rotation；Described magnetic suspension switched reluctance motor stator core and magnetic suspension switched reluctance motor impeller of rotor are 12/8 toothing。
The technical solution of the utility model also has: said two radial permanent magnet bearing, and the mode of magnetizing is axial charging, and N pole is on the right side, and S pole, on a left side, produces radial permanent magnet repulsion and axial permanent magnet expulsive force to the right in magnetic suspension rotating shaft；The passive magnetic suspension of radial direction that described radial permanent magnet repulsion realizes magnetic suspension switched reluctance motor impeller of rotor；Described axial permanent magnet expulsive force to the right, the axial liquid counteracting force to the left produced during for offsetting and driving blood axially flowing to the right。
The technical solution of the utility model also has: after the energising of described axial electromagnetic bearings, produces electromagnetic attraction axially to the left, it is achieved the axial location of magnetic suspension rotating shaft regulates in magnetic suspension rotating shaft。
The technical solution of the utility model also has: described magnetic suspension switched reluctance motor stator winding, including main winding and levitation force winding；After the energising of described main winding, with magnetic suspension switched reluctance motor stator core and magnetic suspension switched reluctance motor impeller of rotor combined effect, generation electromagnetic rotating power, it is achieved the rotation of magnetic suspension switched reluctance motor impeller of rotor drives；After the energising of described levitation force winding, with magnetic suspension switched reluctance motor stator core and magnetic suspension switched reluctance motor impeller of rotor combined effect, generation is binary electromagnetic attraction radially, it is achieved the radial position of magnetic suspension rotating shaft regulates。
The technical solution of the utility model also has: described magnetic suspension rotating shaft right-hand member is spur shape, in axial failure of adjustment situation, can withstand on high speed rotating in the concave port of right side, increase heart pump stability。
The technical solution of the utility model also has: blood of human body, under the driving of magnetic suspension switched reluctance motor impeller of rotor, is flowed into by blood input port, blood outlet flows out, it is achieved blood drive function。
Advantageous Effects of the present utility model is: described magnetic suspension switched reluctance motor impeller of rotor, has both made magnetic suspension switched reluctance motor rotor conducting magnetic circuit, makes again impeller of rotor and drives blood flowing, and then simplifies artificial heart pump configuration；Said two radial permanent magnet bearing, both provided radial direction passive magnetic suspension, the axial liquid counteracting force to the left produced when offsetting again blood flowing, and then reduced system electromagnetic power consumption；Described magnetic suspension switched reluctance motor stator winding provides electromagnetic rotating power and the binary electromagnetic attraction of radial direction, and described axial electromagnetic bearings provides axial magnetic captivation, and the stable suspersion jointly realizing artificial heart pump drives；Described magnetic suspension rotating shaft right-hand member is spur shape, in axial failure of adjustment situation, withstands on high speed rotating in the concave port of right side, increases artificial heart pump's stability。
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of this utility model。
Fig. 2 is the A-A direction view of one embodiment of this utility model。
In figure: 1 be stator casing, 2 be radial permanent magnet bearing, 3 be magnetic suspension switched reluctance motor stator core, 4 be magnetic suspension switched reluctance motor stator winding, 5 be axial electromagnetic bearings, 6 be blood input port, 7 be magnetic suspension switched reluctance motor impeller of rotor, 8 be magnetic suspension rotating shaft, 9 be blood outlet, 10 for concave port。
Detailed description of the invention
This utility model is made up of stator casing 1, radial permanent magnet bearing 2, magnetic suspension switched reluctance motor stator core 3, magnetic suspension switched reluctance motor stator winding 4, axial electromagnetic bearings 5, blood input port 6, magnetic suspension switched reluctance motor impeller of rotor 7, magnetic suspension rotating shaft 8, blood outlet 9 and concave port 10；Being provided with magnetic suspension switched reluctance motor impeller of rotor 7 in the middle of described magnetic suspension rotating shaft 8, axial left end is provided with axial electromagnetic bearings 5；Described stator casing about 1 is respectively arranged at two ends with blood input port 6 and blood outlet 9, and axially inwall center, right side is provided with concave port 10, and inner radial wall centre position is provided with magnetic suspension switched reluctance motor stator core 3；Described magnetic suspension switched reluctance motor stator core 3 is wound with magnetic suspension switched reluctance motor stator winding 4；Described magnetic suspension switched reluctance motor stator core 3 is axially respectively provided on two sides with a radial permanent magnet bearing 2。
Passive magnetic suspension realizes: during this Novel axial flow type artificial heart pump's normal operation, drives blood axially to flow to the right, and then magnetic suspension rotating shaft 8 can be subject to axial liquid counteracting force to the left。Two radial permanent magnet bearing 2, the mode of magnetizing is axial charging, and N pole is on the right side, and S pole, on a left side, produces radial permanent magnet repulsion and axial permanent magnet expulsive force to the right in magnetic suspension rotating shaft 8；Wherein radial permanent magnet repulsion realizes the passive magnetic suspension of radial direction of magnetic suspension rotating shaft 8, and axially permanent magnet expulsive force to the right is for offsetting axial liquid counteracting force to the left。
Active adjustment realizes: magnetic suspension switched reluctance motor stator winding 4 is wound on magnetic suspension switched reluctance motor stator core 3, including main winding and levitation force winding, after levitation force winding energising, interact with magnetic suspension switched reluctance motor stator core 3 and magnetic suspension switched reluctance motor impeller of rotor 7, magnetic suspension rotating shaft 8 produces radially binary electromagnetic attraction, by controlling electrical current size, radially binary electromagnetic attraction size can be changed, and then dynamically regulate the radial direction two degrees of freedom position of magnetic suspension rotating shaft 8；After axial electromagnetic bearings 5 energising, magnetic suspension rotating shaft 8 produces electromagnetic attraction axially to the left, by controlling electrical current size, thus it is possible to vary axially electromagnetic attraction size to the left, and then dynamically regulate the axial location of magnetic suspension rotating shaft 8；Due to axial electromagnetic bearings 5, can only producing electromagnetic attraction axially to the left, namely require when magnetic suspension rotating shaft 8 is in longitudinal balance position, axially permanent magnet expulsive force to the right should be greater than the maximum of axial liquid counteracting force to the left；And magnetic suspension rotating shaft right-hand member is spur shape, in axial failure of adjustment situation, the right side inner high speed rotating of concave port 10 can be withstood on, increase artificial heart pump's job stability。
Rotate to drive and realize: magnetic suspension switched reluctance motor stator winding 4 is wound on magnetic suspension switched reluctance motor stator core 3, including main winding and levitation force winding, after main winding energising, interact with magnetic suspension switched reluctance motor stator core 3 and magnetic suspension switched reluctance motor impeller of rotor 7, produce electromagnetic rotating power, drive magnetic suspension switched reluctance motor impeller of rotor 7 to rotate；Magnetic suspension switched reluctance motor stator core 3, inclined double wedge shape, is 12 toothings, magnetic suspension switched reluctance motor impeller of rotor 7, and inclined foliaceous is 8 toothings, and namely the two constitutes 12/8 toothing；Magnetic suspension switched reluctance motor impeller of rotor 7, under electromagnetic rotating power effect, rotates and drives blood to flow vertically。
The work process of a kind of Novel axial flow type artificial heart pump: levitation force winding energising in magnetic suspension switched reluctance motor stator winding 4, regulate magnetic suspension rotating shaft 8 radial position, axial electromagnetic bearings 5 is energized, and regulates magnetic suspension rotating shaft 8 axial location, and then realizes stable state magnetic suspension；Main winding energising in magnetic suspension switched reluctance motor stator winding 4, driving magnetic suspension switched reluctance motor impeller of rotor 7 to rotate, blood, under magnetic suspension switched reluctance motor impeller of rotor 7 drives, is flowed into by blood input port 6, blood outlet 9 flows out, and then realizes artificial heart pump's blood supply function。
Claims (7)
1. a Novel axial flow type artificial heart pump, it is characterised in that: include stator casing (1), radial permanent magnet bearing (2), magnetic suspension switched reluctance motor stator core (3), magnetic suspension switched reluctance motor stator winding (4), axial electromagnetic bearings (5), blood input port (6), magnetic suspension switched reluctance motor impeller of rotor (7), magnetic suspension rotating shaft (8), blood outlet (9) and concave port (10)；Being provided with magnetic suspension switched reluctance motor impeller of rotor (7) in the middle of described magnetic suspension rotating shaft (8), axial left end is provided with axial electromagnetic bearings (5)；Described stator casing (1) left and right is respectively arranged at two ends with blood input port (6) and blood outlet (9), axially inwall center, right side is provided with concave port (10), and inner radial wall centre position is provided with magnetic suspension switched reluctance motor stator core (3)；Described magnetic suspension switched reluctance motor stator core (3) is wound with magnetic suspension switched reluctance motor stator winding (4)；Described magnetic suspension switched reluctance motor stator core (3) is axially respectively provided on two sides with a radial permanent magnet bearing (2)。
2. a kind of Novel axial flow type artificial heart pump according to claim 1, it is characterised in that: described magnetic suspension switched reluctance motor stator core (3), inclined double wedge shape；Described magnetic suspension switched reluctance motor impeller of rotor (7), inclined foliaceous, drive blood to flow vertically during rotation；Described magnetic suspension switched reluctance motor stator core (3) and magnetic suspension switched reluctance motor impeller of rotor (7) are 12/8 toothing。
3. a kind of Novel axial flow type artificial heart pump according to claim 1, it is characterized in that: said two radial permanent magnet bearing (2), the mode of magnetizing is axial charging, N pole is on the right side, S pole is on a left side, at magnetic suspension rotating shaft (8) upper generation radial permanent magnet repulsion and axial permanent magnet expulsive force to the right；Described radial permanent magnet repulsion realizes the passive magnetic suspension of radial direction of magnetic suspension switched reluctance motor impeller of rotor (7)；Described axial permanent magnet expulsive force to the right, the axial liquid counteracting force to the left produced during for offsetting and driving blood axially flowing to the right。
4. a kind of Novel axial flow type artificial heart pump according to claim 1, it is characterized in that: after described axial electromagnetic bearings (5) energising, at magnetic suspension rotating shaft (8) the axial electromagnetic attraction to the left of upper generation, it is achieved the axial location of magnetic suspension rotating shaft (8) regulates。
5. a kind of Novel axial flow type artificial heart pump according to claim 1 or claim 2, it is characterised in that: described magnetic suspension switched reluctance motor stator winding (4), including main winding and levitation force winding；After the energising of described main winding, with magnetic suspension switched reluctance motor stator core (3) and magnetic suspension switched reluctance motor impeller of rotor (7) combined effect, produce electromagnetic rotating power, it is achieved the rotation of magnetic suspension switched reluctance motor impeller of rotor (7) drives；After the energising of described levitation force winding, with magnetic suspension switched reluctance motor stator core (3) and magnetic suspension switched reluctance motor impeller of rotor (7) combined effect, produce radially binary electromagnetic attraction, it is achieved the radial position of magnetic suspension rotating shaft (8) regulates。
6. a kind of Novel axial flow type artificial heart pump according to claim 1, it is characterized in that: described magnetic suspension rotating shaft (8) right-hand member is spur shape, in axial failure of adjustment situation, right side concave port (10) inner high speed rotating can be withstood on, increase heart pump stability。
7. a kind of Novel axial flow type artificial heart pump according to claim 1, it is characterized in that: blood of human body is under the driving of magnetic suspension switched reluctance motor impeller of rotor (7), flowed into by blood input port (6), flowed out by blood outlet (9), it is achieved blood drive function。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002404.9U CN205322884U (en) | 2016-01-05 | 2016-01-05 | Novel axial -flow type artificial heart pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002404.9U CN205322884U (en) | 2016-01-05 | 2016-01-05 | Novel axial -flow type artificial heart pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205322884U true CN205322884U (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620002404.9U Expired - Fee Related CN205322884U (en) | 2016-01-05 | 2016-01-05 | Novel axial -flow type artificial heart pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205322884U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN111525766A (en) * | 2019-02-01 | 2020-08-11 | 白骑士液体处理公司 | Pump with magnets for journaling and magnetically axially positioning its rotor and related method |
| 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 |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
-
2016
- 2016-01-05 CN CN201620002404.9U patent/CN205322884U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | 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 |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| CN111525766A (en) * | 2019-02-01 | 2020-08-11 | 白骑士液体处理公司 | Pump with magnets for journaling and magnetically axially positioning its rotor and related method |
| CN111525766B (en) * | 2019-02-01 | 2022-12-02 | 白骑士液体处理公司 | Pump with magnets for magnetically axially positioning its rotor and associated method |
| 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 |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20170105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |