CN1559626A - Passive magnetik floating permanent heart ventricle auxiliary propeller-type blood pump - Google Patents
Passive magnetik floating permanent heart ventricle auxiliary propeller-type blood pump Download PDFInfo
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- CN1559626A CN1559626A CNA2004100141650A CN200410014165A CN1559626A CN 1559626 A CN1559626 A CN 1559626A CN A2004100141650 A CNA2004100141650 A CN A2004100141650A CN 200410014165 A CN200410014165 A CN 200410014165A CN 1559626 A CN1559626 A CN 1559626A
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- rotor
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- blood pump
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Abstract
A permanent propeller-type blood pump for helping the failed heart is composed of rotor and stator. It features that a permanent-magnet bearing is used to realize passive magnetic floating for separating rotor from stator to avoid mechanical abrasion, and the physiological saline and heparin and directly introduced to it for avoiding blood coagulation.
Description
Affiliated technical field
The present invention relates to medical instruments field, refer in particular to the auxiliary impeller blood of the permanent ventricle of passive magnetic floating, be mainly used in auxiliary depleted heart, to keep normal blood circulation.
Background technology
Existing permanent ventricular assist device all is the floating sickle pump of electromagnetism magnetic at present, and its advantage is not have Mechanical Contact between rotor and the stator, can not produce mechanical friction and wearing and tearing, can permanently use; Owing to there is not the problem of frictional heat, therefore can not produce thrombosis in addition.Electromagnetism magnetic is floating to need electric magnet, and rotor position measurement and feedback control system, and control system keeps rotor and stator to break away from according to the measured value DM of rotor-position, is in suspended state.This method not only causes the complex structure of system, increases the volume and weight of device, and consumes extra electric energy.
Summary of the invention
The present invention aims to provide the auxiliary impeller blood of the permanent ventricle of a kind of passive magnetic floating, and it has overcome, and electromagnetism magnetic is floating must to increase electric magnet and relevant measurement and control system thereof, thereby complex structure, has increased the defective of the volume and weight of device.
The object of the present invention is achieved like this:
Device is made up of rotor and stator, places the coil of wire and ferrum stamen in the middle of the pump case appearance, and two ends respectively are provided with a big magnet ring, constitute stator jointly.Rotor is by the driving magnet steel that is positioned at pump case inside and divide and to be located at two beads at two ends, and the impeller that is located at front end constitutes jointly.For anti-hemostasis-coagulation and thrombosis, the design of device afterbody has saline and heparin syringe.
After stator feeds electric current, produce the electromagnetic field of rotation, drive the rotor magnetic steel rotation, be fastened on epitrochanterian impeller and rotate therewith, thereby drive the blood rotation, produce centrifugal force, blood is axially sucked by the import of pump case, radially discharges, and finishes blood-pumping function.The suspension of rotor realizes that by Permanent-magnet bearing the macro ring of bearing is fixed on the stator, and little ring is fixed on the rotor.
Permanent-magnet bearing is made of macro ring and little ring, and its effect and function are: large and small annular permanent-magnet steel is coaxial to be arranged in the same way, and wherein macro ring is fixed, and little ring can move axially; The equal axial charging of large and small magnet ring, direction is identical; Because the action of a magnetic field, when distance between the large and small ring reduced, two interannulars produced repulsive force, its axial component performance spring action, and its radial component plays the bearing effect.
Its advantage is: utilize Permanent-magnet bearing to reach maglev purpose, kept the floating advantage of electromagnetism magnetic, overcome simultaneously the floating account of electromagnetism magnetic problem, and do not need to increase electric magnet and relevant measurement and control system thereof, do not consume extra electric energy.
Description of drawings
Fig. 1 is a structural representation of the present invention
1. the coil of wire and ferrum stamen; 2. driving magnet steel; 3. annular permanent magnet (greatly) magnet steel; 4. annular permanent magnet magnet steel (little); 5. impeller; 6. pump case; 7. impregnator.
The specific embodiment
As shown in Figure 1, device is made of rotor and stator.Place the coil of wire and ferrum stamen 1 in the middle of pump case 6 appearances, two ends respectively are provided with a big magnet ring 3, constitute stator jointly.Rotor is by the driving magnet steel 2 that is positioned at pump case 6 inside and divide and be located at two beads 4 at two ends, and the impeller 5 that is located at front end constitutes jointly.For anti-hemostasis-coagulation and thrombosis, the design of device afterbody has saline and heparin syringe 7.
After coil of wire energising, rotor just rotates, and throws off with stator contact, and impeller drives the blood rotation, generation centrifugal force, so blood enters pump case from pump intake, again in circumferential discharge; Because impregnator does not stop injecting normal saline and heparin in pump, whole rotor is not influenced by heparin can produce blood coagulation and thrombosis on the surface.Owing to there is not mechanical wear, the use of device is nonvolatil.
Claims (2)
1. the permanent ventricle of passive magnetic floating is assisted impeller blood, device is made of rotor and stator, the middle coil of wire and the ferrum stamen (1) placed that it is characterized in that pump case (6) appearance, two ends respectively are provided with a big magnet ring (3), common formation stator, rotor is located at two beads (4) at two ends by being positioned at the inner driving magnet steel (2) of pump case (6) and dividing, and the common formation of impeller (5) that is located at front end.
2. the permanent ventricle of passive magnetic floating according to claim 1 is assisted impeller blood, it is characterized in that the design of device afterbody has saline and heparin syringe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100141650A CN1559626A (en) | 2004-02-26 | 2004-02-26 | Passive magnetik floating permanent heart ventricle auxiliary propeller-type blood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100141650A CN1559626A (en) | 2004-02-26 | 2004-02-26 | Passive magnetik floating permanent heart ventricle auxiliary propeller-type blood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1559626A true CN1559626A (en) | 2005-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100141650A Pending CN1559626A (en) | 2004-02-26 | 2004-02-26 | Passive magnetik floating permanent heart ventricle auxiliary propeller-type blood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1559626A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8690749B1 (en) | 2009-11-02 | 2014-04-08 | Anthony Nunez | Wireless compressible heart pump |
| CN105477706A (en) * | 2016-01-14 | 2016-04-13 | 山东大学 | Double-stator hybrid supporting artificial heart pump |
| 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 |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
-
2004
- 2004-02-26 CN CNA2004100141650A patent/CN1559626A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8690749B1 (en) | 2009-11-02 | 2014-04-08 | Anthony Nunez | Wireless compressible heart pump |
| CN105477706A (en) * | 2016-01-14 | 2016-04-13 | 山东大学 | Double-stator hybrid supporting artificial heart pump |
| CN105477706B (en) * | 2016-01-14 | 2018-01-26 | 山东大学 | Bimorph transducer mixing bearing artificial heart pump |
| 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 |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| 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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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |