CN110251754B - Double permanent magnet moving coil type blood pump - Google Patents
Double permanent magnet moving coil type blood pump Download PDFInfo
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- CN110251754B CN110251754B CN201910602498.1A CN201910602498A CN110251754B CN 110251754 B CN110251754 B CN 110251754B CN 201910602498 A CN201910602498 A CN 201910602498A CN 110251754 B CN110251754 B CN 110251754B
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- permanent magnet
- pump
- blood
- coil
- liquid cavity
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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
-
- 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
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
- A61M60/258—Piston 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
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/89—Valves
- A61M60/894—Passive valves, i.e. valves actuated by the blood
- A61M60/896—Passive valves, i.e. valves actuated by the blood having flexible or resilient parts, e.g. flap valves
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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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a double-permanent-magnet moving-coil type blood pump which comprises a base, wherein a pump shell is arranged on the base, an accommodating space is formed inside the pump shell, a pump liquid cavity is formed in one side of the accommodating space, a blood inlet and a blood outlet are formed in the pump liquid cavity, and check valves are arranged at the blood inlet and the blood outlet; a first permanent magnet is arranged in the accommodating space close to the pump liquid cavity, a second permanent magnet is arranged on the side far away from the pump liquid cavity, and a partition plate is arranged between the first permanent magnet and the second permanent magnet; pump fluid chamber department sets up the blood bag, the blood bag deviates from pump fluid chamber and connects in the piston laterally, the piston connects in guide arm one end, and after the guide arm other end passed first permanent magnet and baffle, connect in the spring limiting plate, installs the coil on the guide arm between first permanent magnet and the baffle, installs compression spring on the guide arm between baffle and the spring limiting plate, compression spring one end connects in the baffle, and the other end connects in the spring limiting plate. The invention has better blood pumping effect.
Description
Technical Field
The invention relates to medical auxiliary equipment, in particular to a double-permanent-magnet moving-coil type blood pump.
Background
The heart auxiliary device has good effect on the end-stage heart failure as an auxiliary treatment device, however, the development of the heart chamber auxiliary device is not independent of the development of a blood pump which is a core component, and the main function of the blood pump is to replace the ventricular output function and the recovery of blood loss in operation or be used for the perfusion of cardioplegia. At present, the types of blood pumps applied in the ventricular assist device are rolling blood pumps and centrifugal blood pumps, the rolling blood pumps push blood to flow by utilizing the rotation and rolling of a roller in a pump groove, but when the rolling blood pumps pump blood, the pump head generates large extrusion force on a pump pipe, which may cause hemolysis and micro-embolism; the centrifugal pump pushes blood to advance by utilizing vortex and centrifugal force generated by high-speed rotation inside the pump head, the development of the centrifugal pump is rapid, particularly the appearance of the centrifugal pumps of the second generation and the third generation, so that the haemolysis of the blood pump is further reduced, but the centrifugal pump is continuous blood flow during blood pumping and is inconsistent with pulsating blood pumping of the natural heart, experiments show that the blood vessel does not pulsate for a long time, so that the change of the aortic vessel wall structure and the reduction of the vasoconstriction function are caused, and the injury can be caused to the microcirculation and organs of a human body.
Disclosure of Invention
The invention aims to solve the problems and provides a double-permanent-magnet moving-coil blood pump with a good blood pumping effect.
In order to achieve the purpose, the invention adopts the following technical scheme: a double-permanent-magnet moving-coil blood pump is characterized by comprising a base, wherein a pump shell is arranged on the base, an accommodating space is formed inside the pump shell, a pump liquid cavity is formed in one side of the accommodating space, a blood inlet and a blood outlet are formed in the pump liquid cavity, and check valves are arranged at the blood inlet and the blood outlet;
a first permanent magnet is arranged in the accommodating space close to the pump liquid cavity, a second permanent magnet is arranged on the side far away from the pump liquid cavity, and a partition plate is arranged between the first permanent magnet and the second permanent magnet;
pump fluid chamber department sets up the blood bag, the blood bag deviates from pump fluid chamber and connects in the piston laterally, the piston connects in guide arm one end, and after the guide arm other end passed first permanent magnet and baffle, connect in the spring limiting plate, installs the coil on the guide arm between first permanent magnet and the baffle, installs compression spring on the guide arm between baffle and the spring limiting plate, compression spring one end connects in the baffle, and the other end connects in the spring limiting plate.
It is preferable that: the first permanent magnet is provided with an N pole at the side close to the pump liquid cavity and an S pole at the side far away from the pump liquid cavity; and the side of the second permanent magnet, which is close to the pump liquid cavity, is an S pole, and the side of the second permanent magnet, which is far away from the pump liquid cavity, is an N pole.
It is preferable that: the first permanent magnet is provided with an air hole for preventing negative pressure.
It is preferable that: the first permanent magnet is provided with a first permanent magnet hole, a plastic shaft sleeve is arranged in the first permanent magnet hole, and the guide rod penetrates through the plastic shaft sleeve.
It is preferable that: the accommodating space between the first permanent magnet and the partition plate is a middle coil movable cavity, and radiating holes are arranged on the upper side, the lower side, the front side and the rear side of the side wall of the middle coil movable cavity and respectively comprise an upper radiating hole, a lower radiating hole, a front radiating hole and a rear radiating hole;
the base is provided with a heat dissipation fan, and the heat dissipation fan is located below the heat dissipation holes in the lower side.
It is preferable that: the coil is a multilayer H-shaped coil.
It is preferable that: and the wire end of the coil is connected with a power supply through the upper side heat dissipation hole.
It is preferable that: the one-way valve is a double-blade butterfly valve.
It is preferable that: the pump case is composed of a semi-spherical pump head, a cylindrical pump main body and a rear cover.
Compared with the prior art, the invention has the following beneficial effects: compared with the common roller pump and centrifugal pump, the double permanent magnet moving coil type blood pump does not apply additional rigid extrusion force to blood or enable liquid to flow at a relatively high speed, and the damage degree to the blood is low. The invention is electromagnetically driven, the spring buffer can reduce the impact when the coil moves to the leftmost side or the rightmost side, and the spring can enable the coil to move and start more stably at the moment of power failure to power on, thereby further reducing the damage of mechanical push to blood compared with the traditional electromagnetic pulsation type blood pump. The invention has the advantages of reasonable design, compact structure, simple and convenient operation and strong anti-interference capability.
Drawings
Fig. 1 is a sectional view of the whole structure of the double permanent magnet moving coil type blood pump.
Fig. 2 is a structure diagram of a bilobed butterfly valve for a double permanent magnet moving coil type blood pump of the present invention.
Fig. 3 is a structure diagram of a multi-layer H-shaped coil for a double permanent magnet moving coil blood pump according to the present invention.
Fig. 4 is a schematic diagram of a working step of the double-permanent-magnet moving-coil blood pump of the present invention.
Fig. 5 is a schematic diagram of a working step of the double-permanent-magnet moving-coil blood pump of the present invention.
Fig. 6 is a schematic diagram of the working step two of the double permanent magnet moving coil type blood pump of the invention.
Fig. 7 is a schematic diagram of the working step two of the double permanent magnet moving coil type blood pump of the invention.
Detailed Description
Referring to fig. 1 to 3, the double permanent magnet moving coil type blood pump includes a base 11, a pump housing 2 is disposed on the base 11, an accommodating space is disposed inside the pump housing 2, a pump fluid cavity is disposed on one side of the accommodating space, a blood inlet 15 and a blood outlet 17 are disposed in the pump fluid cavity, and check valves 16 are disposed at the blood inlet 15 and the blood outlet 17.
A first permanent magnet 3 is arranged in the containing space close to the pump liquid cavity, a second permanent magnet 8 is arranged on the side departing from the pump liquid cavity, and a partition plate 100 is arranged between the first permanent magnet 3 and the second permanent magnet 8.
The blood sac 14 is arranged at the liquid cavity of the pump and is made of a material with better compression and tensile properties, the outer wall of the blood sac is wavy, and the inner wall of the blood sac is made of a polyurethane material with better blood compatibility. Blood bag 14 deviates from pump liquid chamber side and connects in piston 13, piston 13 connects in 6 one ends of guide arm, and 6 other ends of guide arm pass behind first permanent magnet 3 and baffle 100, connect in spring limiting plate 9, install coil 4 on the guide arm 6 between first permanent magnet 3 and the baffle 100, install compression spring 5 on the guide arm 6 between baffle 100 and the spring limiting plate 9, compression spring 5 one end connects in baffle 100, and the other end connects in spring limiting plate 9.
In this embodiment, the side of the first permanent magnet 3 close to the pump liquid cavity is an N pole, and the side away from the pump liquid cavity is an S pole; and the side of the second permanent magnet 8, which is close to the pump liquid cavity, is an S pole, and the side, which is far away from the pump liquid cavity, is an N pole.
In this embodiment, the first permanent magnet 3 is provided with an air hole for preventing negative pressure from being generated.
In this embodiment, the first permanent magnet 3 has a first permanent magnet hole, a plastic bushing 12 is installed in the first permanent magnet hole, and the guide rod 6 is inserted into the plastic bushing 12.
In this embodiment, the accommodating space between the first permanent magnet 3 and the partition 100 is a middle coil moving cavity, and heat dissipation holes are disposed on the upper side, the lower side, the front side and the rear side of the sidewall of the middle coil moving cavity, and respectively include an upper heat dissipation hole, a lower heat dissipation hole, a front heat dissipation hole and a rear heat dissipation hole;
the base 11 is provided with a heat dissipation fan 10, and the heat dissipation fan 10 is located below the heat dissipation holes at the lower side.
In this embodiment, the coil 4 is a multilayer H-shaped coil.
In this embodiment, the wire end of the coil 4 is connected to the power supply through the upper heat dissipation hole.
In this embodiment, the check valve 16 is a double-flap butterfly valve (double-flap check valve) made of a polymer material. Double-flap check valves (double-flap check valves) are prior art and will not be described in detail. It should be noted that, in the case of satisfying the function, the check valve may also be selected from other valves in the prior art.
In this embodiment, the pump case 2 is composed of a semi-spherical pump head 1, a cylindrical pump body, and a rear cover 7.
The pump shell 2 is made of transparent PMMA organic glass material, the inner wall is smooth, and the contact friction force is small. The first permanent magnet 3 and the second permanent magnet 8 are both made of sintered neodymium iron boron materials. The piston 13, the guide rod 6 and the spring limiting plate 9 are all made of medical high polymer materials. The compression spring 5 is made of a high-molecular non-metallic material and is an SPEC plastic spring with good antimagnetic performance.
Specifically, the pump liquid cavity on the left side in the drawing is located at the pump head 1 in the shape of a semicircular sphere, a blood inlet 15 and a blood outlet 17 are formed in the pump head 1, check valves are arranged in the blood inlet and the blood outlet, the check valves are double-leaf butterfly valves 16, a blood bag 14 for temporarily storing blood is arranged at the pump liquid cavity, the blood bag 14 is tightly sleeved on a piston, and the volume of the blood bag 14 is changed through the piston 13 connected with a guide rod 6 to push the blood to flow. The right end of the pump head 1 and the pump main body of the pump shell 2 are in threaded connection, and the blood inlet 15, the blood outlet 17 and the pump head 1 of the pump shell 2 are relatively fixed without gaps and are in interference fit.
The coil and the guide rod are relatively fixed and can move left and right along with the guide rod, the moving range is arranged between the first permanent magnet 3 fixed on the left side and the baffle (baffle) on the inner wall of the pump shell 2 on the right side, the left side of the first permanent magnet 3 is an N pole, the right side of the first permanent magnet is an S pole, the first permanent magnet is provided with an air hole, the plastic shaft sleeve 12 is embedded into the first permanent magnet hole, and the air hole avoids negative pressure generated when the moving cavity of the middle coil works. The front and the back of the side wall of the pump shell 2 of the middle coil movable cavity and the upper and the lower sides are all provided with heat dissipation holes to be communicated with the outside. Wherein, the through-hole (upside heat dissipation hole) of upside is less, and the end of a thread of the electrified coil is connected with an external power supply through the hole. When the heat dissipation fan 10 is operated, air enters from the lower side through holes (lower side heat dissipation holes) and is dissipated from the front and rear side through holes (front side heat dissipation holes and rear side heat dissipation holes), thereby achieving the purpose of dissipating heat from the coil 4.
The left end of the compression spring 5 is fixed on the partition board 100, the right end is fixed on the spring limit board 9, and the compression spring 5 is in the original length in the initial state. The second permanent magnet 8 is fixed relatively without gaps with the inner wall of the pump body and the rear cover 7. The rear cover 7 is connected with the pump body in a threaded manner.
The working process is as follows:
the method comprises the following steps: referring to fig. 4 and 5, in an initial state, the spring 5 is in an original length state, the coil 4 is located between the two permanent magnets, and the coil is tightly wound clockwise, so that the left end of the coil 4 is connected with the positive pole of the direct-current power supply, the right end of the coil 4 is connected with the negative pole of the direct-current power supply, and according to the electromagnetic effect, the left end of the coil 4 presents the N pole, and the right end presents the S pole, and attracts the first permanent magnet 3 and repels the second permanent magnet 8. According to the mechanics principle, the coil 4 will move to the left together with the guide rod 6 until the compression spring 5 is pressed to the shortest position within the elastic limit, after which the coil 4 is de-energized.
In the power-on process, the coil 4 and the guide rod 6 push the piston 13 to move leftwards to squeeze the pump liquid cavity, the volume of the blood sac 14 is reduced, the pressure is increased, a double-blade butterfly valve (a one-way valve 16) in the blood outlet 17 is opened, and blood flows out.
Step two: referring to fig. 6 and 7, the coil 4 is at the leftmost side of the movement range, and after the coil 4 is powered off, the compression spring 5 extends to restore to the original position, and meanwhile, the coil 4 is driven to return to the initial position.
After power failure, the spring 5 pushes the guide rod and the piston to move rightwards, the volume of the blood sac 14 in the left pump fluid cavity is increased, the pressure is reduced, a double-blade butterfly valve (one-way valve 16) in the blood inlet 15 is opened, and blood flows in.
The invention simulates the heart beating frequency by controlling the coil electrifying frequency, and the steps are repeated to complete the process of simulating the blood pumping.
The coils 4 are in a multilayer overlapping form, constant current is conducted among the multilayer coils 4 in a series connection mode, a relatively stable overlapping magnetic field is formed on the end faces of the coils 4, and a reliable environment is provided for the stability of the working state (the multilayer coils are H-shaped in appearance and are tightly wound clockwise, the number of winding layers of the coils on the two end faces is more than that of the middle of the coils, the coils and the guide rod are relatively fixed, the guide rod is driven to reciprocate left and right after the coils are electrified, an intermittent electrifying mode is adopted, and the frequency is consistent with the heart beating frequency). The movable coil type structure is adopted, so that the contact area between the parts and the inner wall of the pump shell is greatly reduced, the influence caused by part of sliding friction force is eliminated, and the working process is easier to realize. The base 11 fixes the position of the pump shell 2, so that the influence of the external environment is reduced, and the anti-interference capability of the device is further enhanced. The fan 10 of the base can effectively cool the coil 4 which is continuously electrified to work, thereby prolonging the working time of the blood pump.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, and all technical solutions belonging to the principle of the present invention belong to the protection scope of the present invention. Modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (6)
1. The double-permanent-magnet moving-coil blood pump is characterized by comprising a base (11), wherein a pump shell (2) is arranged on the base (11), an accommodating space is formed inside the pump shell (2), a pump liquid cavity is formed in one side of the accommodating space, a blood inlet (15) and a blood outlet (17) are formed in the pump liquid cavity, and check valves (16) are arranged at the blood inlet (15) and the blood outlet (17);
a first permanent magnet (3) is arranged in the accommodating space close to the pump liquid cavity, a second permanent magnet (8) is arranged on the side departing from the pump liquid cavity, and a partition plate (100) is arranged between the first permanent magnet (3) and the second permanent magnet (8);
the blood bag type blood pump is characterized in that a blood bag (14) is arranged at the position of a pump liquid cavity, the blood bag (14) deviates from the pump liquid cavity and is laterally connected to a piston (13), the piston (13) is connected to one end of a guide rod (6), the other end of the guide rod (6) penetrates through a first permanent magnet (3) and a partition plate (100) and then is connected to a spring limiting plate (9), a coil (4) is installed on the guide rod (6) between the first permanent magnet (3) and the partition plate (100), a compression spring (5) is installed on the guide rod (6) between the partition plate (100) and the spring limiting plate (9), one end of the compression spring (5) is connected to the partition plate (100), the other end of the compression spring (5) is connected to the spring limiting plate (9), and the coil (4) is a multilayer H-shaped coil;
the first permanent magnet (3) is provided with an N pole at the side close to the pump liquid cavity and an S pole at the side far away from the pump liquid cavity; the side of the second permanent magnet (8) close to the pump liquid cavity is an S pole, and the side of the second permanent magnet far away from the pump liquid cavity is an N pole;
the accommodating space between the first permanent magnet (3) and the partition plate (100) is a middle coil movable cavity, and heat dissipation holes are arranged on the upper side, the lower side, the front side and the rear side of the side wall of the middle coil movable cavity and respectively comprise an upper heat dissipation hole, a lower heat dissipation hole, a front heat dissipation hole and a rear heat dissipation hole;
the base (11) is provided with a heat dissipation fan (10), and the heat dissipation fan (10) is located below the heat dissipation holes in the lower side.
2. The dual permanent magnet moving coil blood pump of claim 1, wherein: and the first permanent magnet (3) is provided with an air hole for preventing negative pressure from generating.
3. The dual permanent magnet moving coil blood pump of claim 1, wherein: the first permanent magnet (3) is provided with a first permanent magnet hole, a plastic shaft sleeve (12) is installed in the first permanent magnet hole, and the guide rod (6) penetrates through the plastic shaft sleeve (12).
4. The dual permanent magnet moving coil blood pump of claim 1, wherein: and the wire end of the coil (4) is connected with a power supply through the upper side heat dissipation hole.
5. The dual permanent magnet moving coil blood pump of claim 1, wherein: the one-way valve (16) is a double-lobe butterfly valve.
6. The dual permanent magnet moving coil blood pump of claim 1, wherein: the pump shell (2) is composed of a semi-spherical pump head (1), a cylindrical pump main body and a rear cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602498.1A CN110251754B (en) | 2019-07-05 | 2019-07-05 | Double permanent magnet moving coil type blood pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602498.1A CN110251754B (en) | 2019-07-05 | 2019-07-05 | Double permanent magnet moving coil type blood pump |
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| Publication Number | Publication Date |
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| CN110251754A CN110251754A (en) | 2019-09-20 |
| CN110251754B true CN110251754B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910602498.1A Active CN110251754B (en) | 2019-07-05 | 2019-07-05 | Double permanent magnet moving coil type blood pump |
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| CN113990165B (en) * | 2021-11-13 | 2024-01-23 | 沈阳天仁合一科技有限公司 | Heart pump simulating device for automatic pulse finder |
| CN114005343A (en) * | 2021-11-13 | 2022-02-01 | 沈阳天仁合一科技有限公司 | Universal base for medical care end |
| CN113888945B (en) * | 2021-11-13 | 2024-01-23 | 沈阳天仁合一科技有限公司 | Closed bionic blood circulation system |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828371A (en) * | 1970-12-18 | 1974-08-13 | Arco Nuclear Co | Self-contained artificial heart |
| US3842440A (en) * | 1972-09-01 | 1974-10-22 | E Karlson | Implantable linear motor prosthetic heart and control system therefor |
| US3974854A (en) * | 1972-09-07 | 1976-08-17 | Kurpanek W H | Valve particularly adapted for utilization in controlling the flow of blood |
| CN1037278A (en) * | 1988-04-12 | 1989-11-22 | 莫斯科应用物理研究所 | Artificial heart |
| WO1990008260A1 (en) * | 1989-01-23 | 1990-07-26 | University Of South Florida | Magnetically actuated positive displacement pump |
| US4994078A (en) * | 1988-02-17 | 1991-02-19 | Jarvik Robert K | Intraventricular artificial hearts and methods of their surgical implantation and use |
| US5300111A (en) * | 1992-02-03 | 1994-04-05 | Pyxis, Inc. | Total artificial heart |
| RU2046607C1 (en) * | 1990-03-05 | 1995-10-27 | Воробьев Борис Федорович | Artificial heart |
| WO2003072161A2 (en) * | 2002-02-21 | 2003-09-04 | Design Mentor, Inc. | Fluid pump |
| CN102207077A (en) * | 2010-03-30 | 2011-10-05 | 罗伯特·博世有限公司 | Method of running diaphragm pump, diaphragm pump and use of diaphragm pump |
| 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 |
| CN105709287A (en) * | 2016-04-12 | 2016-06-29 | 上海理工大学 | Electromagnetic coil driving type blood pump system |
| CN106563182A (en) * | 2016-11-04 | 2017-04-19 | 上海理工大学 | Electromagnetic drive bidirectional pulsed blood pump |
| CN109793953A (en) * | 2019-01-17 | 2019-05-24 | 上海理工大学 | A kind of reciprocating blood pump of single-chamber of magnetic force and elastic force linkage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9500188B2 (en) * | 2012-06-11 | 2016-11-22 | Fresenius Medical Care Holdings, Inc. | Medical fluid cassettes and related systems and methods |
| EP2878819A3 (en) * | 2013-11-28 | 2015-10-21 | Teylor Intelligent Processes SL | Rear electromagnet suitable for vibrating pumps and valves |
| DE102016121333A1 (en) * | 2016-11-08 | 2018-05-09 | Lutz Holding GmbH | DOUBLE-MEMBRANE PUMP, METHOD FOR OPERATING SUCH A DOUBLE-MEMBRANE PUMP, AND A MEMBRANE PUMP |
-
2019
- 2019-07-05 CN CN201910602498.1A patent/CN110251754B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828371A (en) * | 1970-12-18 | 1974-08-13 | Arco Nuclear Co | Self-contained artificial heart |
| US3842440A (en) * | 1972-09-01 | 1974-10-22 | E Karlson | Implantable linear motor prosthetic heart and control system therefor |
| US3974854A (en) * | 1972-09-07 | 1976-08-17 | Kurpanek W H | Valve particularly adapted for utilization in controlling the flow of blood |
| US4994078A (en) * | 1988-02-17 | 1991-02-19 | Jarvik Robert K | Intraventricular artificial hearts and methods of their surgical implantation and use |
| CN1037278A (en) * | 1988-04-12 | 1989-11-22 | 莫斯科应用物理研究所 | Artificial heart |
| WO1990008260A1 (en) * | 1989-01-23 | 1990-07-26 | University Of South Florida | Magnetically actuated positive displacement pump |
| RU2046607C1 (en) * | 1990-03-05 | 1995-10-27 | Воробьев Борис Федорович | Artificial heart |
| US5300111A (en) * | 1992-02-03 | 1994-04-05 | Pyxis, Inc. | Total artificial heart |
| WO2003072161A2 (en) * | 2002-02-21 | 2003-09-04 | Design Mentor, Inc. | Fluid pump |
| CN102207077A (en) * | 2010-03-30 | 2011-10-05 | 罗伯特·博世有限公司 | Method of running diaphragm pump, diaphragm pump and use of diaphragm pump |
| 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 |
| CN105709287A (en) * | 2016-04-12 | 2016-06-29 | 上海理工大学 | Electromagnetic coil driving type blood pump system |
| CN106563182A (en) * | 2016-11-04 | 2017-04-19 | 上海理工大学 | Electromagnetic drive bidirectional pulsed blood pump |
| CN109793953A (en) * | 2019-01-17 | 2019-05-24 | 上海理工大学 | A kind of reciprocating blood pump of single-chamber of magnetic force and elastic force linkage |
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