CN1559361A - Artificial cardiac valve pump - Google Patents
Artificial cardiac valve pump Download PDFInfo
- Publication number
- CN1559361A CN1559361A CNA2004100141646A CN200410014164A CN1559361A CN 1559361 A CN1559361 A CN 1559361A CN A2004100141646 A CNA2004100141646 A CN A2004100141646A CN 200410014164 A CN200410014164 A CN 200410014164A CN 1559361 A CN1559361 A CN 1559361A
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- Prior art keywords
- stator
- blood
- rotor
- cardiac valve
- valve pump
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- 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.)
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Abstract
An artificial cardiac valve pump for helping the failing heart by installing it in the heart is coposed of the rotor consisting of magnetic steel and blade wheel made of ferromagnetic material and the stator consisting of coil, iron core and guide blade at output position. Its shape and volume are same as those of natural valve.
Description
Affiliated technical field
The present invention relates to medical instruments field, refer in particular to a kind of artificial heart valve pump, be mainly used in auxiliary depleted heart, to keep normal blood circulation.
Background technology
Artificial heart valve and the artificial heart pump who uses clinically all has separately shortcoming and advantage at present.Artificial valve can substitute the natural heart valve that lost efficacy, and stops backflow of blood, keeps blood unidirectional, unobstructed mobile, and has long survival period (many decades); But the support of valve internal support limb, the bridge pier in the river causes that blood produces stagnation point and vortex, causes thrombosis easily; Artificial heart pump can be assisted depleted cardiac muscle, finishes blood-pumping function, but generally all needs the outer anatomic space of occupying volume, and the blood circulation of nature is caused interference.
Summary of the invention
The purpose of this invention is to provide a kind of artificial heart valve pump, it is a kind of new ideas, and two combine into one with existing artificial heart valve and artificial heart pump; Have dual-use function, can keep the blood one-way flow, can finish blood-pumping function again, it adopts the identical shape and size of cardiac valve, does not need extra anatomic space.
The object of the present invention is achieved like this:
Device adopts the identical shape and size of cardiac valve, is made up of rotor and stator.Stator pack vinculum volume and ferrum stamen, stator is provided with stator in the exit position; Rotor is made of magnet steel and impeller, and impeller is formed by ferrimagnet processing and coating, and it plays the effect of magnetic loop simultaneously again.
Rotor rotation after coil of wire energising drives blood rotation and axial flow, and the effect of stator is a rotational component of eliminating blood flow, reduces the destruction of blood.
Its advantage is:
(1) two combine into one with existing artificial heart valve and artificial heart pump, has dual-use function, can keep the blood one-way flow, stops backflow of blood, can increase the pressure of blood again, and auxiliary depleted ventricle is kept normal blood pressure;
(2) have the identical shape and size of cardiac valve, be placed in the identical position of cardiac valve, do not need extra anatomic space.
(3) do not have bearing in the pump, rotor reduce by liquid film and stator between friction; Rotor outer surface is selected high-abrasive material for use, prolongs to use the increase time.
Description of drawings
Fig. 1 is a structural representation of the present invention
1. the stator coil of wire and ferrum stamen; 2. rotor magnetic steel; 3. impeller; 4. exit guide blade.
The specific embodiment
As shown in Figure 1, device adopts the identical shape and size of cardiac valve, is made up of rotor and stator.Stator pack vinculum volume and ferrum stamen 1, stator is provided with stator 4 in the exit position; Rotor is made of magnet steel 2 and impeller 3, and impeller 3 is processed by ferrimagnet, and its plays the effect of magnetic loop simultaneously again.Rotor rotation after coil of wire energising drives blood rotation and axial flow, shown in the figure arrow.The effect of stator 4 is rotational components of eliminating blood flow, reduces the destruction of blood.
The whole device of the embodiment of the invention weighs 40 grams, comprising rotor 11 grams; 24.7 millimeters of maximum outside diameters, 12.7 millimeters of this director's degree, at natural ventricular diastole, rotating speed needs 1500 rev/mins when keeping aortic pressure 80 millimetress of mercury; At natural Ventricular systole, rotor can produce 10 liters/minute flow under same rotating speed, and blood pressure reaches 120 millimetress of mercury, and wherein the valve pump increases blood pressure 40 millimetress of mercury, i.e. ventricle load shedding 40 millimetress of mercury.The present invention carries out animal experiment in Zhenjiang City No.1 People's Hospital, confirms to substitute cardiac valve and auxiliary depleted ventricle with it, and be feasible.
Claims (1)
1. the artificial heart valve pump is characterized in that device adopts the identical shape and size of cardiac valve, form by rotor and stator, and stator pack vinculum volume and ferrum stamen (1), stator is provided with stator (4) in the exit position; Rotor is made of magnet steel (2) and impeller (3), and impeller (3) is formed by ferrimagnet processing and coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100141646A CN100536801C (en) | 2004-02-26 | 2004-02-26 | Artificial cardiac valve pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100141646A CN100536801C (en) | 2004-02-26 | 2004-02-26 | Artificial cardiac valve pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559361A true CN1559361A (en) | 2005-01-05 |
| CN100536801C CN100536801C (en) | 2009-09-09 |
Family
ID=34440232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100141646A Expired - Fee Related CN100536801C (en) | 2004-02-26 | 2004-02-26 | Artificial cardiac valve pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100536801C (en) |
Cited By (6)
| 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 |
| 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 |
-
2004
- 2004-02-26 CN CNB2004100141646A patent/CN100536801C/en not_active Expired - Fee Related
Cited By (8)
| 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 |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100536801C (en) | 2009-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20110226 |