CN103480053A - Magnetism-driven blood pump system - Google Patents
Magnetism-driven blood pump system Download PDFInfo
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- CN103480053A CN103480053A CN201310468758.3A CN201310468758A CN103480053A CN 103480053 A CN103480053 A CN 103480053A CN 201310468758 A CN201310468758 A CN 201310468758A CN 103480053 A CN103480053 A CN 103480053A
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- blood
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- blood pump
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- 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
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Anesthesiology (AREA)
- Cardiology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention relates to a magnetism-driven blood pump system which comprises a magnetic driving part, a blood driving part and a blood pump body. The blood driving part comprises a solid permanent magnet and a soft shell, wherein the solid permanent magnet is wrapped by the soft shell and placed in the blood pump body. An internal chamber of the blood pump body is divided into a left chamber and a right chamber, wherein the left chamber and the right chamber are relatively independent. Coils of the magnetic driving part are arranged on the two sides of the blood pump body. The left side of the left chamber is provided with a first blood channel and a second blood channel. The first blood channel is connected with a front blood path. The second blood channel is connected with a blood storing bag. The right side of the right chamber is provided with a third blood channel and a fourth blood channel. The third blood channel is connected with the blood storing bag. The fourth blood channel is connected with a rear blood path. One-way valves are arranged at the joints of the four blood channels and the blood pump body respectively. The magnetism-driven blood pump system changes the blood flow driving mode of an existing blood pump, effectively reduces damage to blood cells in the driving process, has the advantages of being balanced in flow and capable of moving in two directions, increases blood supply flow, and is more economical, practical and convenient to use clinically in hospitals.
Description
Technical field
The present invention relates to a kind of cardiac operation under direct vision extracorporeal circulation of blood pump, be specifically related to a kind of magnetic drive blood pump system.
Background technology
The blood pump that cardiac operation under direct vision extracorporeal circulation is both at home and abroad used at present mainly contains two types, and a kind of is roller pump, the extruding driving blood flow by roller bearing to pump line.Another kind is centrifugal blood pump, and impeller or turbine by rotation make blood flow to the direct effect of blood.Two kinds of blood pumps have destruction to the visible component of blood, and roller pump to the destruction of blood more so, and generally, after running 1 to 2 hours, patient can hemoglobinuria in various degree occur because of erythrocytic breaking.The present invention adopts the power part that soft blood drive parts are blood drive, has avoided existing blood pump to the rolling and stirring action of blood, and blood constituent is better protected.
Summary of the invention
The present invention is exactly the technical problem that solves blood constituent protection in extracorporeal circulation of blood, and a kind of magnetic drive blood pump system is provided.
The technical scheme that the present invention solves the problems of the technologies described above employing is:
A kind of magnetic drive blood pump system, comprise magnetic drive parts, blood drive parts, the blood pump pump housing, be characterized in: the blood drive parts comprise solid permanent magnet, soft shell, solid permanent magnet is wrapped in soft shell, the blood drive parts are placed in the blood pump pump housing, blood pump pump housing inner room is divided into to two relatively independent left chamber and right chamber, and blood pump pump housing both sides are equipped with the coil of magnetic drive parts.
The left chamber left side is provided with first and second blood channel, the first blood channel connects the preorder bloody path, the second blood channel connects storage blood bag, right chamber right side is provided with third and fourth road blood channel, the 3rd blood channel connects storage blood bag, the 4th blood channel connects the postorder bloody path, and four blood channels and blood pump pump housing junction are provided with check valve.
Two coils are the interval hot-wire coil, i.e. coil B outage during loop A energising, coil B energising during the loop A outage.
Soft shell is made by hyperelastic elastomeric material.The blood drive parts are positioned at blood pump pump housing central authorities, and the whole blood pump pump housing seals by injecting glue.
The invention has the beneficial effects as follows: the driving pumps such as the present invention and existing centrifugal pump and roll pump are compared, and because the magnetic field that adopts coil electricity to form drives the blood drive component movement, thereby realize blood drive.And using soft shell as pressure transmission medium, avoided driving pump directly to the extruding of hemocyte, from having reduced to the full extent the destruction of hemocyte.
But magnetic drive blood system of the present invention has way moving, the advantage of flow equilibrium.By changing the coil electricity frequency, thereby change the motion frequency of blood drive parts, reach the purpose of controlling the blood pump system blood flow.
The soft shell of blood pump of the present invention is macromolecule, nontoxic, high strength elastic thin film, not cracky.
The blood pump pump housing of the present invention and blood drive parts are tightly connected, and are separated by with aseptic thin-film, with magnetically-actuated.The soft outer casing rupture of blood pump prevents that outside air from entering the pump housing, even also can not cause blood excessive.
Magnetic drive blood pump system structure small-sized efficient of the present invention, be suitable for hospital clinical and use.
The accompanying drawing explanation
Fig. 1 is coil A energising of the present invention, blood flow graph during coil B outage;
Fig. 2 is coil A outage of the present invention, blood flow graph during coil B energising;
Fig. 3 is the overall structure schematic diagram of magnetic drive blood pump system of the present invention.
The specific embodiment
As shown in Figure 1 to Figure 3, magnetic drive blood pump system of the present invention, comprise magnetic drive parts, blood drive parts, the blood pump pump housing.
The blood drive parts comprise solid permanent magnet 5, soft shell 4, and solid permanent magnet 5 is wrapped in soft shell 4, and the blood drive parts are placed in the blood pump pump housing, and blood pump pump housing inner room is divided into to two relatively independent left chamber 12 and right chamber 13.Left chamber 12 left sides have first and second blood channel, and the first blood channel connects preorder bloody path 1 blood out, and the second blood channel connects storage blood bag 7, and first and second blood channel and blood pump pump housing junction are respectively arranged with first and second check valve 2,3.Right chamber right side has third and fourth road blood channel, and the 3rd blood channel connects the blood that storage blood bag 7 is come in, and the 4th blood channel connects postorder bloody path 10, and third and fourth blood channel and blood pump pump housing junction are respectively arranged with third and fourth check valve 8,9.Two coils in the magnetic drive parts are placed in blood pump pump housing both sides.Soft shell 4 is made by hyperelastic elastomeric material 6.The blood pump pump housing is cylindric, and the blood drive parts are positioned at blood pump pump housing central authorities, and the whole blood pump pump housing seals by injecting glue simultaneously.
After outside hot-wire coil produces magnetic field, drive magnetic material integral body and move within the specific limits, for blood flow produces thrust.And soft shell 4 drops to minimum by the destruction to blood in the blood pump drives process.Produce magnetic field and the large I in magnetic field after coil electricity by Current Control.Two coil design are the interval energising simultaneously, coil B14 outage during loop A 11 energising, and during loop A 11 outage, coil B14 energising, realize the bidirectional-movement of blood drive parts with this.
Fig. 2 is magnetic blood pump drives system coil A11 energising, blood flow graph during coil B14 outage.The blood drive parts move towards left side.Left chamber 12 spaces reduce, and it is large that pressure becomes.First check valve 2 at the first blood channel place is closed, and second check valve 3 at the second blood channel place is opened, and blood is entered in storage blood bag 7 by left chamber 12.
Fig. 3 is magnetic blood pump drives system coil A11 outage, blood flow graph during coil B14 energising.The blood drive parts move towards right side.Left chamber 12 spaces become large, and pressure diminishes.First check valve 2 at the first blood channel place is opened, and second check valve 3 at the second blood channel place is closed, and blood is entered in left chamber 12 as shown in Figure 2 by preorder bloody path 1.
When loop A 11 outages, during coil B14 energising, left chamber 12 spaces increase, 13 spaces, right blood chamber diminish simultaneously, the 3rd check valve 8 at the 3rd blood channel place is closed, and the 4th check valve 9 at the 4th blood channel place is opened, and the blood of right chamber 13 flows into postorder bloody path 10.And, when left chamber 12 spaces diminish, right chamber 13 spaces increase, the 3rd check valve 8 at the 3rd blood channel place is opened, and the 4th check valve 9 at the 4th blood channel place is closed, and blood enters right chamber 13 by storage blood bag 7.As can be seen here, during magnetic drive blood pump system work of the present invention, blood chamber, left and right is anti-phase synchronous, and same width, with frequency and same capacity.Greatly improved work efficiency.
Claims (5)
1. a magnetic drive blood pump system, comprise magnetic drive parts, blood drive parts, the blood pump pump housing, it is characterized in that: described blood drive parts comprise solid permanent magnet (5), soft shell (4), solid permanent magnet (5) is wrapped in soft shell (4), the blood drive parts are placed in the blood pump pump housing, blood pump pump housing inner room is divided into to two relatively independent left chamber (12) and right chamber (13), and described blood pump pump housing both sides are equipped with the coil of magnetic drive parts.
2. magnetic drive blood pump system according to claim 1, it is characterized in that: described left chamber (12) left side is provided with first and second blood channel, the first blood channel connects preorder bloody path (1), the second blood channel connects storage blood bag (7), right chamber right side is provided with third and fourth road blood channel, the 3rd blood channel connects storage blood bag (7), and the 4th blood channel connects postorder bloody path (10), and four blood channels and blood pump pump housing junction are provided with check valve.
3. magnetic drive blood pump system according to claim 1, it is characterized in that: described two coils are the interval hot-wire coil, i.e. coil B outage during loop A energising, coil B energising during the loop A outage.
4. magnetic drive blood pump system according to claim 1, it is characterized in that: described soft shell (4) is made by hyperelastic elastomeric material (6).
5. magnetic drive blood pump system according to claim 1, it is characterized in that: described blood drive parts are positioned at blood pump pump housing central authorities, and the whole blood pump pump housing seals by injecting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468758.3A CN103480053A (en) | 2013-10-10 | 2013-10-10 | Magnetism-driven blood pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310468758.3A CN103480053A (en) | 2013-10-10 | 2013-10-10 | Magnetism-driven blood pump system |
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| Publication Number | Publication Date |
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| CN103480053A true CN103480053A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310468758.3A Pending CN103480053A (en) | 2013-10-10 | 2013-10-10 | Magnetism-driven blood pump system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845766A (en) * | 2014-03-07 | 2014-06-11 | 上海市杨浦区市东医院 | Non-contact electromagnetic coupling cylindrical liquid pump system |
| CN112675420A (en) * | 2020-12-21 | 2021-04-20 | 北京工业大学 | Rotary volumetric blood pump |
| US11596783B2 (en) | 2018-03-06 | 2023-03-07 | Indiana University Research & Technology Corporation | Blood pressure powered auxiliary pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253837A (en) * | 1999-12-21 | 2000-05-24 | 马惠生 | Method for making assisted circulation of ventriculus cordis and its device |
| US20030147754A1 (en) * | 2000-03-04 | 2003-08-07 | Eistrup Sebastian Schulte | Blood pump |
| US20080269880A1 (en) * | 2007-04-25 | 2008-10-30 | Robert Jarvik | Blood pump bearings with separated contact surfaces |
| WO2011045167A1 (en) * | 2009-10-15 | 2011-04-21 | Gambro Lundia Ab | Membrane pump system |
| US20110257462A1 (en) * | 2008-10-06 | 2011-10-20 | Indiana University and Technology Corporation | Active or passive assistance in the circulatory system |
| CN102319457A (en) * | 2011-08-25 | 2012-01-18 | 苏州同心医疗器械有限公司 | A kind of self-damping suppresses the magnetic suspension manual heart blood pump rotor and the method for preparing of vibration |
| WO2013082621A1 (en) * | 2011-12-03 | 2013-06-06 | Indiana University Research And Technology Corporation | Cavopulmonary viscous impeller assist device and method |
-
2013
- 2013-10-10 CN CN201310468758.3A patent/CN103480053A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253837A (en) * | 1999-12-21 | 2000-05-24 | 马惠生 | Method for making assisted circulation of ventriculus cordis and its device |
| US20030147754A1 (en) * | 2000-03-04 | 2003-08-07 | Eistrup Sebastian Schulte | Blood pump |
| US20080269880A1 (en) * | 2007-04-25 | 2008-10-30 | Robert Jarvik | Blood pump bearings with separated contact surfaces |
| US20110257462A1 (en) * | 2008-10-06 | 2011-10-20 | Indiana University and Technology Corporation | Active or passive assistance in the circulatory system |
| WO2011045167A1 (en) * | 2009-10-15 | 2011-04-21 | Gambro Lundia Ab | Membrane pump system |
| CN102319457A (en) * | 2011-08-25 | 2012-01-18 | 苏州同心医疗器械有限公司 | A kind of self-damping suppresses the magnetic suspension manual heart blood pump rotor and the method for preparing of vibration |
| WO2013082621A1 (en) * | 2011-12-03 | 2013-06-06 | Indiana University Research And Technology Corporation | Cavopulmonary viscous impeller assist device and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845766A (en) * | 2014-03-07 | 2014-06-11 | 上海市杨浦区市东医院 | Non-contact electromagnetic coupling cylindrical liquid pump system |
| CN103845766B (en) * | 2014-03-07 | 2016-06-22 | 上海市杨浦区市东医院 | Untouchable electromagnetic coupled cylinder type liquid pumping system |
| US11596783B2 (en) | 2018-03-06 | 2023-03-07 | Indiana University Research & Technology Corporation | Blood pressure powered auxiliary pump |
| CN112675420A (en) * | 2020-12-21 | 2021-04-20 | 北京工业大学 | Rotary volumetric blood pump |
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Application publication date: 20140101 |