CN105251068A - Electromagnetic-permanent magnetism bidirectional driving type artificial heart pump - Google Patents
Electromagnetic-permanent magnetism bidirectional driving type artificial heart pump Download PDFInfo
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- CN105251068A CN105251068A CN201510571682.6A CN201510571682A CN105251068A CN 105251068 A CN105251068 A CN 105251068A CN 201510571682 A CN201510571682 A CN 201510571682A CN 105251068 A CN105251068 A CN 105251068A
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- haematodocha
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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
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/562—Electronic control means, e.g. for feedback regulation for making blood flow pulsatile in blood pumps that do not intrinsically create pulsatile flow
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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
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
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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
- A61M60/40—Details relating to driving
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- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
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- Cardiology (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses an electromagnetic-permanent magnetism bidirectional driving type artificial heart pump employing artificial heart elastic blood sacs with simple structure and easy making; two nipple-shape bosses facing inwards and outwards are arranged on the elastic blood sac, and respectively provided with a central hole, thus replacing artificial heart valves of complex structures, and realizing unidirectional imbibition and unidirectional apocenosis; the artificial heart elastic blood sacs are driven by an electromagnetic-permanent magnetism bidirectional driving mechanism having only one armature, so the two elastic blood sacs are alternatively switch between a diastole work state and a contraction work state, thus alternatively realizing imbibition and apocenosis process, outputting pulse type blood flow like a natural heart, preventing technical directional errors of a continuous blood pump, and well simulating the work process of the natural heart; in addition, the elastic blood sacs are made of elastic telescopic materials, streamline form is realized inside, so cells in the blood cannot be damaged, and thromboses are hard to form, thus well replacing the work of a natural heart of a human being or vertebrate.
Description
Technical field
the present invention relates to a kind of electromagnetic-permanent magnetic bi-directional drive type artificial heart pump.
Background technology
heart disease is the second largest killer of human death.Human heart due to illness damage and partially or completely afunction and whole body normal circulation can not be maintained time, a kind of machinery of artificial material manufacture can be transplanted temporarily or for good and all partially or completely to replace cardiac function, promote blood circulation, this sampling device that is artificial heart, this is also that largely solving at present can not the problem of heart transplantation in time because donor is not enough for solving the effective means of heart disease in whole latter stage except heart transplantation.
at present, artificial heart mainly adopts the blood pump of two kinds of different principle, namely based on the pulsed displacement pump of Cardiac valve prosthesis, with the continuous pump of uninterrupted pump blood.But still there is such or such problem in these two kinds of artificial heart pumps at present, can not simulating nature action of the heart and function well.
the working method of pulsed volume blood pump, be very similar to natural animal hearts, its key member is Cardiac valve prosthesis, it is the check valve that control cardiac flow, its structure has close relationship with the quality of artificial heart function, its from nineteen sixty first Application in clinical, afterwards through years of researches, successively experienced by mechanical prosthetic valve, biological tissue's lobe, get involved the stage such as lobe.But Cardiac valve prosthesis is extremely complicated, and manufacturing cost is high, and easily form blood clotting, i.e. thrombosis in motive position.
such as, China Patent Publication No. is 1093005, during name is called " integral artificial heart-lung pump ", in this kind of artificial heart-lung pump, blood storing capsule is installed in pump and inserts in torso model, and such structure easily forms thrombosis in human body, and Cardiac valve prosthesis not easily manufactures.China Patent No. is 99126700.1, provides a kind of artificial heart of gas-electricity one formula in the patent that name is called " gas-electricity one formula blood pump, gas-electricity one formula artificial heart ", but its internal structure is complicated, substantially cannot realize manufacturing, and it is high to realize cost.For another example China Patent Publication No. is 103656770, and name is called " artificial heart blood pump based on minitype cylinder drives ", also there is same problem, and minitype cylinder needs the thoracic cavity on human body to connect two tracheas to external, very easily causes the discomfort of user.
because pulsed volume blood pump exists the technical bottleneck of Cardiac valve prosthesis aspect, the artificial heart of development in the recent period, mostly tends to the continuous pump adopting uninterrupted pump blood.Such as, China Patent Publication No. is 102019002A, name is called in the patent of " a kind of Implanted hollow minimal axial blood pump ", and China Patent Publication No. is 10237598, name is called in the patent of " compact axial-flow magnetic-levitation artificial heart pump ", both all have employed axial-flow pump, although it compares gear pump and vane pump, less can destroy the cell in blood, but running up of its component, the destructive rate of the cell in blood is still higher, and due to axial-flow pump be a kind of continuous pump, it can not the work process of simulating nature heart, can be described as the selectivity mistake of technique direction.
Summary of the invention
the object of the invention is the shortcoming in order to overcome prior art, provide a kind of with Electromagnetic Drive, pulse blood supply formula artificial heart pump.
for achieving the above object, the technical solution used in the present invention is:
a kind of electromagnetic-permanent magnetic bi-directional drive type artificial heart pump, described artificial heart pump comprises two elasticity haematodocha and the electromagnetic-permanent magnetic dual direction drive mechanism for ordering about the work of two described elasticity haematodocha, each described elasticity haematodocha includes the cystidium with closed inner chamber be made up of retractable material, the end of described cystidium has the first projection recessed in described closed inner chamber, from the second projection that described closed inner chamber is outwardly, described first projection offers the first liquid flow hole, described second projection offers the second liquid flow hole, the outside described cystidium being positioned at described first projection is provided with the feed flow portion possessed for sap cavity, the outside described cystidium being positioned at described second projection is provided with the discharge opeing portion possessing exhaust chamber, described elasticity haematodocha has diastole duty and shrinks duty, when described cystidium side direction tension, described elasticity haematodocha is in diastole duty, described first liquid flow hole is opened and is made the described sap cavity that supplies be connected with described closed inner chamber and form imbibition check valve, blood enters in the closed inner chamber of described elasticity haematodocha by described for sap cavity, described second liquid flow hole closes, when described cystidium side loaded, described elasticity haematodocha is in contraction duty, described first liquid flow hole closes, described second liquid flow hole is opened and is made described exhaust chamber be connected with described closed inner chamber and form discharge opeing check valve, blood is entered in described exhaust chamber by the closed inner chamber of described elasticity haematodocha
described electromagnetic-permanent magnetic dual direction drive mechanism is located between two described elasticity haematodocha, described electromagnetic-permanent magnetic dual direction drive mechanism comprises the hollow form yoke be fixedly installed, be housed in the DC coil in described yoke inner chamber regularly, be located in the armature in described DC coil regularly, lay respectively at described armature both sides and can two pressing plates of relatively described armature axially-movable, the end each described pressing plate closing on described armature is all fixedly provided with permanent magnet, the end pole described permanent magnet of described armature both sides closing on described armature is arranged on the contrary, the other end of described pressing plate is fixedly connected with the side of described cystidium, the relatively described yoke of opposite side of described cystidium is fixedly installed.
preferably, described first projection and described second projection are all in nipple-like.
preferably, described first liquid flow hole is the streamlined bellmouth orifice that ecto-entad aperture diminishes gradually, the streamlined bellmouth orifice that described second liquid flow hole diminishes gradually in aperture from inside to outside.
preferably, described feed flow portion, described discharge opeing portion are all in streamlined.
preferably, the closed inner chamber of two described cystidiums forms left ventricle and the right ventricle of described artificial heart respectively, accordingly, and the left atrium and the right atrium that form described artificial heart for sap cavity respectively in two described feed flow portions.
preferably, on described electromagnetic-permanent magnetic dual direction drive mechanism, the magnetic force of the described permanent magnet on the described pressing plate in left side is greater than the magnetic force of described permanent magnet on the described pressing plate in right side.
preferably, described pressing plate comprises the sliding part be located at sliding axially in described yoke inner chamber, connecting portion for being fixedly connected with described cystidium, the outer face of described connecting portion is in the cambered surface consistent with the side end face appearance profile of described cystidium, and the outer face of described connecting portion is together with the side end face fixed bonding of described cystidium.
further, described permanent magnet is embedded regularly in described sliding part.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: electromagnetic-permanent magnetic bi-directional drive type artificial heart pump of the present invention, wherein adopt a kind of structure simple, easily manufactured elasticity haematodocha, with inside and outside on this haematodocha, middle two porose nipple-like projections, replace the Cardiac valve prosthesis that structure is extremely complicated, realize unidirectional imbibition and unidirectional discharge opeing, driven by electromagnetic-permanent magnetic dual direction drive mechanism again, two elasticity haematodocha are alternately changed between diastole duty and contraction duty, thus alternately realize the process of imbibition and discharge opeing.Be installed in people or vertebrate thoracic cavity, blood constantly can enter two elasticity haematodocha, then flows out from elasticity haematodocha after it shrinks and supply blood to human or animal's health.This artificial heart pump can output class like the pulsed blood flow of natural heart, avoid technical side tropism's mistake of continuous blood pump, imitated the work process of natural heart well.Meanwhile, what elasticity haematodocha adopted is resilientiy stretchable material, and inside is streamlined, can not damage, also not easily form thrombosis to the cell in blood, can substitute the work of people or vertebrates nature heart well.
Accompanying drawing explanation
accompanying drawing 1, accompanying drawing 2 are used for an embodiment of Single Cardiac Ventricle for the present invention, and wherein accompanying drawing 1 is the cystidium of elasticity haematodocha schematic diagram when being in diastole duty; Accompanying drawing 2 is the schematic diagram that the cystidium of elasticity haematodocha is in when shrinking duty;
accompanying drawing 3, accompanying drawing 4 are used for a Biventricular embodiment for the present invention, and wherein, accompanying drawing 3 is the schematic diagram of artificial heart pump of the present invention when being in diastole duty;
accompanying drawing 4 is the schematic diagram that artificial heart pump of the present invention is in when shrinking duty.
wherein: 100, elasticity haematodocha; 1, cystidium; 10, closed inner chamber; 11, first is protruding; 12, the first liquid flow hole; 13, second is protruding; 14, the second liquid flow hole; 2, feed flow portion; 21, for sap cavity; 22, supply opening; 3, discharge opeing portion; 31, exhaust chamber; 32, leakage fluid dram;
200, driving mechanism; 4, yoke; 5, DC coil; 6, armature; 7, pressing plate; 71, sliding part; 72, connecting portion; 8, permanent magnet.
Detailed description of the invention
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
see Fig. 1, Figure 2 shows that the embodiment of elasticity haematodocha 100 for Single Cardiac Ventricle.This elasticity haematodocha 100 comprises the cystidium 1 with closed inner chamber 10 be made up of retractable material, the end of this cystidium 1 to have in closed inner chamber 10 the second projection 13 that the first recessed projection 11, self-enclosed inner chamber 10 are outwardly, first projection 11 offers the first liquid flow hole 12, second projection 13 offers the second liquid flow hole 14, wherein on cystidium 1, the first protruding 11 and second projection 13 is located at the two ends of cystidium 1 respectively.When cystidium 1 is subject to lateral force, its internal capacity is expanded, cystidium 1 inside will produce so-called " negative pressure ", namely elasticity haematodocha 100 bears the effect of environmental stress, as shown by the arrows in Figure 1, under the effect of this pressure, second liquid flow hole 14 at the outwardly second protruding 13 places closes, and open to first liquid flow hole 12 at the projecting inward first protruding 11 places, it is inner that blood stream flows into cystidium 1 by outside.When cystidium 1 is subject to lateral pressure, its internal capacity shrinks, cystidium 1 internal pressure will be greater than external environment condition pressure, internal pressure distribution as shown by the arrows in Figure 2, under the effect of this pressure, the first liquid flow hole 12 to the projecting inward first protruding 11 places closes, and second liquid flow hole 14 at the outwardly second protruding 13 places is opened, and blood stream flows to outside by cystidium 1 inside.
see the biventricular artificial heart pump of a kind of electromagnetic-permanent magnetic bi-directional drive shown in Fig. 3, Fig. 4, this artificial heart pump mainly comprises two elasticity haematodocha 100 and for ordering about the flexible electromagnetic-permanent magnetic dual direction drive mechanism 200 of this two elasticity haematodocha 100.
these two elasticity haematodocha 100 include the cystidium 1 with closed inner chamber 10 be made up of retractable material, the end of this cystidium 1 to have in closed inner chamber 10 the second projection 13 that the first recessed projection 11, self-enclosed inner chamber 10 are outwardly, first projection 11 offers in the first liquid flow hole 12, second projection 13 and offer the second liquid flow hole 14.When cystidium 1 is subject to the pulling force of side direction, cystidium 1 diastole and cause its internal capacity to expand, the first liquid flow hole 12 can be opened and be connected with closed inner chamber 10, and now the second liquid flow hole 14 closes; When cystidium 1 is subject to the pressure of side direction, cystidium 1 shrinks and causes its internal capacity to reduce, and the first liquid flow hole 12 closes, and now the second liquid flow hole 14 is opened and is connected with closed inner chamber 10.
shown in Fig. 3, Fig. 4, outside cystidium 1 being positioned at the first projection 11 is provided with the feed flow portion 2 possessed for sap cavity 21, and outside cystidium 1 being positioned at the second projection 13 is provided with the discharge opeing portion 3 possessing exhaust chamber 31.Feed flow portion 2 has the supply opening 22 be communicated with for sap cavity 21, discharge opeing portion 3 has the leakage fluid dram 32 be connected with exhaust chamber 31.
elasticity haematodocha 100 has diastole duty and shrinks duty, when cystidium 1 side direction tension, namely elasticity haematodocha 100 is in diastole duty and causes internal capacity to expand, now the first liquid flow hole 12 is opened and makes to be connected with closed inner chamber 10 by the first liquid flow hole 12 for sap cavity 21, and the second liquid flow hole 14 is closed, now liquid stream can enter from supply opening 22 and enter the closed inner chamber 10 of cystidium 1 through the first liquid flow hole 12 for sap cavity 21 again, realizes feed flow; When cystidium 1 side loaded, namely elasticity haematodocha 100 is in and shrinks duty and cause internal capacity to reduce, now the first liquid flow hole 12 is closed, second liquid flow hole 14 is opened and exhaust chamber 31 is connected with closed inner chamber 10 by the second liquid flow hole 14, now liquid stream can enter exhaust chamber 31 from closed inner chamber 10 by the second liquid flow hole 14, discharge through leakage fluid dram 32 again, realize discharge opeing.
like this, that is be provided with the first protruding 11 formation imbibition check valves of the first liquid flow hole 12, be provided with the second liquid flow hole 14 second protruding 13 then forms discharge opeing check valve.On each elasticity haematodocha 100, the closed inner chamber 10 of cystidium 1 forms the ventricle of artificial heart, and feed flow portion 2 then forms atrium for sap cavity 21.
in the above-described embodiments, first protruding 11 and second projection 13 is all in nipple-like, the streamlined bellmouth orifice that first liquid flow hole 12 diminishes gradually in ecto-entad aperture, the streamlined bellmouth orifice that second liquid flow hole 14 diminishes gradually in aperture from inside to outside, so just, can when cystidium 1 be subject to lateral force, first protruding 11 place's tensions and the first liquid flow hole 12 is opened, second protruding 13 place's tensions and the second liquid flow hole 14 is closed; When cystidium 1 is subject to lateral pressure, first protruding 11 place's pressurizeds and the first liquid flow hole 12 is closed, second protruding 13 place's pressurizeds and the second liquid flow hole 14 is opened.Feed flow portion 2 and discharge opeing portion 3 are all arranged to streamlined.When specifically arranging, cystidium 1 and feed flow portion 2, discharge opeing portion 3 are wholely set, and feed flow portion 2 and discharge opeing portion 3 are positioned at same one end of cystidium 1.
electromagnetic-permanent magnetic dual direction drive mechanism 200 is located between two elasticity haematodocha 100, elasticity haematodocha 100 on the left of electromagnetic-permanent magnetic dual direction drive mechanism 200 forms left atrium and the left ventricle of heart, and the elasticity haematodocha 100 on the right side of driving mechanism 200 forms right atrium and the right ventricle of heart.
this electromagnetic-permanent magnetic dual direction drive mechanism 200 comprise be fixedly installed hollow form yoke 4, be housed in DC coil 5 in yoke 4 inner chamber regularly, be located in armature 6 in DC coil 5 regularly, the two ends of armature 6 are respectively equipped with a pressing plate 7, each pressing plate 7 all can be arranged by armature 6 relatively with moving vertically, the end each pressing plate 7 closing on armature 6 is all fixedly provided with permanent magnet 8, the other end of pressing plate 7 is fixedly connected with the side of cystidium 1, and the relative yoke 4 of opposite side of cystidium 1 is fixedly installed.
here, pressing plate 7 comprises the sliding part 71 be located at sliding axially in yoke 4 inner chamber, connecting portion 72 for being fixedly connected with cystidium 1, permanent magnet 8 is embedded regularly in sliding part 71, and the magnetic pole permanent magnet 8 of both sides closing on the end of armature 6 is arranged on the contrary, even the permanent magnet 8 in left side is N pole near the end of armature 6, then the permanent magnet 8 on right side is then S pole near the end of armature 6.Both sides yoke 4 being positioned at armature 6 have the sliding tray matched with sliding part 71, and sliding tray provides sliding part 71 with slide-and-guide.The outer face of connecting portion 72 is in the cambered surface consistent with the side end face appearance profile of cystidium 1, and the outer face of connecting portion 72 is together with the side end face fixed bonding of cystidium 1.
like this, by generation current after DC coil 5 is energized, armature 6 produces magnetic, the magnetic pole at armature 6 two ends should be contrary with magnetic pole both sides permanent magnet 8 closing on armature 6 respectively, even the permanent magnet 8 in left side is N pole near the end of armature 6, the permanent magnet 8 on right side is S pole near the end of armature 6, being then energized, rear armature 6 left end is N pole, right-hand member is S pole.Like this, between armature 6 and permanent magnet 8 repulsion effect under, pressing plate 7 outwards slides and applies the extruding force of side direction to cystidium 1; And when after DC coil 5 power-off, armature 6 no longer presents magnetic, but due to armature 6 are ferromagnetic metals, produce captivation between permanent magnet 8 and armature 6, make pressing plate 7 slide towards armature 6 and apply the pulling force of cystidium 1 side direction, namely realize automated backhaul after DC coil 5 power-off.
when DC coil 5 is not energized, attract each other because of gravitation between the permanent magnet 8 of both sides and armature 6, pressing plate 7 is made to apply cystidium 1 with the pulling force of side direction, thus make the elasticity haematodocha 100 of both sides be in diastole duty, second liquid flow hole 14 is closed, and the first liquid flow hole 12 is opened, outside liquid stream is entered by supply opening 22 and enters in the closed inner chamber 10 of cystidium 1 through the first liquid flow hole 12 again for sap cavity 21, as shown in Figure 3; When DC coil 5 is energized, Magnet 6 produces magnetic, magnetic force is produced between the permanent magnet 8 of both sides and armature 6, the relative armature 6 of the pressing plate 7 of both sides is outwards slided vertically, this makes pressing plate 7 apply cystidium 1 with the pressure of side direction, thus make elasticity haematodocha 100 to the conversion of contraction duty, first liquid flow hole 12 is closed, and the second liquid flow hole 14 is opened, liquid stream in cystidium 1 closed inner chamber 10 enters exhaust chamber 31 by the second liquid flow hole 14, and discharge through leakage fluid dram 32 and supply blood to health, as shown in Figure 4; Then DC coil 5 power-off, make elasticity haematodocha 100 transfer to for diastole duty again, circulation like this just can realize the ALT pulse work process of the imbibition-discharge opeing of artificial heart.
general electromagnetic drive mechanism is all armature motion, can not carry out bi-directional drive, and in the present invention, armature 6 is fixing simultaneously, coordinates the permanent magnet 8 at two ends, can realize two-way simultaneous very easily and drive.
in above-mentioned electromagnetic-permanent magnetic dual direction drive mechanism 200, the pressing plate 7 only adopting an armature 6 just can order about both sides moves vertically, the pressing plate 7 promoting both sides when DC coil 5 is energized outwards moves and makes elasticity haematodocha 100 be converted to contraction duty, and after DC coil 5 power-off, realize automated backhaul and make elasticity haematodocha 100 change position diastole duty, and then artificial heart pump is constantly worked, its structure very simple, is easy to realize.
when specifically arranging, the pressure due to the left ventricle of heart is greater than the pressure of right ventricle, and on electromagnetic-permanent magnetic dual direction drive mechanism 200, on left side pressing plate 7, the magnetic force of permanent magnet 8 should be greater than the magnetic force of permanent magnet 8 on the pressing plate 7 of right side.
to sum up, electromagnetic-permanent magnetic bi-directional drive type artificial heart pump of the present invention, the artificial heart elasticity haematodocha 100 wherein adopting a kind of structure simple, easily manufactured, with inside and outside, middle two porose nipple-like projections on this elasticity haematodocha 100, replace the Cardiac valve prosthesis that structure is extremely complicated, realize unidirectional imbibition and unidirectional discharge opeing, driven by electromagnetic-permanent magnetic dual direction drive mechanism 200 again, two elasticity haematodocha 100 are alternately changed between diastole duty and contraction duty, thus alternately realizes the process of imbibition and discharge opeing.Be installed in people or vertebrate thoracic cavity, blood constantly can enter two elasticity haematodocha 100, then flows out from elasticity haematodocha 100 after it shrinks and supply blood to human or animal's health.This artificial heart pump can output class like the pulsed blood flow of natural heart, avoid technical side tropism's mistake of continuous blood pump, imitated the work process of natural heart well.Meanwhile, what elasticity haematodocha adopted is resilientiy stretchable material, and its inside is streamlined, can not damage, also not easily form thrombosis to the cell in blood, can substitute the work of people or vertebrates nature heart well.
above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. an electromagnetic-permanent magnetic bi-directional drive type artificial heart pump, it is characterized in that: described artificial heart pump comprises two elasticity haematodocha and for ordering about the flexible electromagnetic-permanent magnetic dual direction drive mechanism of two described elasticity haematodocha, each described elasticity haematodocha includes the cystidium with closed inner chamber be made up of retractable material, the end of described cystidium has the first projection recessed in described closed inner chamber, from the second projection that described closed inner chamber is outwardly, described first projection offers the first liquid flow hole, described second projection offers the second liquid flow hole, the outside described cystidium being positioned at described first projection is provided with the feed flow portion possessed for sap cavity, the outside described cystidium being positioned at described second projection is provided with the discharge opeing portion possessing exhaust chamber, described elasticity haematodocha has diastole duty and shrinks duty, when described cystidium side direction tension, described elasticity haematodocha is in diastole duty, described first liquid flow hole is opened and is made the described sap cavity that supplies be connected with described closed inner chamber and form imbibition check valve, blood enters in the closed inner chamber of described elasticity haematodocha by described for sap cavity, described second liquid flow hole closes, when described cystidium side loaded, described elasticity haematodocha is in contraction duty, described first liquid flow hole closes, described second liquid flow hole is opened and is made described exhaust chamber be connected with described closed inner chamber and form discharge opeing check valve, blood is entered in described exhaust chamber by the closed inner chamber of described elasticity haematodocha
Described electromagnetic-permanent magnetic dual direction drive mechanism is located between two described elasticity haematodocha, described electromagnetic-permanent magnetic dual direction drive mechanism comprises the hollow form yoke be fixedly installed, be housed in the DC coil in described yoke inner chamber regularly, be located in the armature in described DC coil regularly, lay respectively at described armature both sides and can two pressing plates moving vertically of relatively described armature, the end each described pressing plate closing on described armature is all fixedly provided with permanent magnet, the end pole described permanent magnet of described armature both sides closing on described armature is arranged on the contrary, the other end of described pressing plate is fixedly connected with the side of described cystidium, the relatively described yoke of opposite side of described cystidium is fixedly installed.
2. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1, is characterized in that: described first projection and described second projection are all in nipple-like.
3. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1 and 2, it is characterized in that: described first liquid flow hole is the streamlined bellmouth orifice that ecto-entad aperture diminishes gradually, the streamlined bellmouth orifice that described second liquid flow hole diminishes gradually in aperture from inside to outside.
4. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1, is characterized in that: described feed flow portion, described discharge opeing portion are all in streamlined.
5. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1, it is characterized in that: the closed inner chamber of two described cystidiums forms left ventricle and the right ventricle of described artificial heart respectively, accordingly, the left atrium and the right atrium that form described artificial heart for sap cavity respectively in two described feed flow portions.
6. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1 or 5, it is characterized in that: on described electromagnetic-permanent magnetic dual direction drive mechanism, the magnetic force of the described permanent magnet on the described pressing plate in left side is greater than the magnetic force of described permanent magnet on the described pressing plate in right side.
7. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 1, it is characterized in that: described pressing plate comprises the sliding part be located at sliding axially in described yoke inner chamber, connecting portion for being fixedly connected with described cystidium, the outer face of described connecting portion is in the cambered surface consistent with the side end face appearance profile of described cystidium, and the outer face of described connecting portion is together with the side end face fixed bonding of described cystidium.
8. electromagnetic-permanent magnetic bi-directional drive type artificial heart pump according to claim 7, is characterized in that: described permanent magnet is embedded regularly in described sliding part.
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| CN105641763A (en) * | 2016-04-12 | 2016-06-08 | 上海理工大学 | Separated electromagnetic coupling blood pump system |
| CN106730080A (en) * | 2017-02-04 | 2017-05-31 | 上海理工大学 | A kind of electromagnetic drive pump |
| CN111840680A (en) * | 2020-08-25 | 2020-10-30 | 沈喆 | Magnetic unloading blood pump based on magnetofluid propulsion technology |
| CN114367032A (en) * | 2022-01-06 | 2022-04-19 | 中国科学院力学研究所 | Flexible diaphragm, electromagnetic drive bag type artificial heart and control method |
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| CN1093005A (en) * | 1993-03-31 | 1994-10-05 | 赵伟 | Integral artificial heart-lung pump |
| US20020116055A1 (en) * | 2000-04-25 | 2002-08-22 | The Penn State Research Foundation | Artificial heart with arrhythmia signalling |
| CN1775314A (en) * | 2005-11-25 | 2006-05-24 | 沈阳工业大学 | Magnetic controlled valveless pulsate blood pump |
| WO2015092732A1 (en) * | 2013-12-18 | 2015-06-25 | GALLUCCI, Stefano | Artificial heart |
| CN103967739A (en) * | 2014-05-29 | 2014-08-06 | 苏州大学张家港工业技术研究院 | Electromagnetic plunger pump |
| CN204972440U (en) * | 2015-09-10 | 2016-01-20 | 苏州大学张家港工业技术研究院 | Two -way drive formula artificial heart pump of electromagnetism - permanent magnetism |
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