CN103656770B - Based on the artificial heart blood pump that minitype cylinder drives - Google Patents
Based on the artificial heart blood pump that minitype cylinder drives Download PDFInfo
- Publication number
- CN103656770B CN103656770B CN201310676536.0A CN201310676536A CN103656770B CN 103656770 B CN103656770 B CN 103656770B CN 201310676536 A CN201310676536 A CN 201310676536A CN 103656770 B CN103656770 B CN 103656770B
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- CN
- China
- Prior art keywords
- blood
- minitype cylinder
- piston boit
- artificial heart
- 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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Classifications
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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
- A61M60/20—Type thereof
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
- A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
-
- 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
- A61M60/40—Details relating to driving
Abstract
Based on the artificial heart blood pump that minitype cylinder drives, comprise minitype cylinder, the pump housing and piston boit; Piston boit and blood diaphragm are divided into upper chamber and lower chambers pump housing inner chamber, and blood diaphragm is elastomer and reciprocating between upper chamber and lower chambers with piston boit; Upper chamber be pump haemocoele room and be provided with insert check valve enter blood mouth and blood outlet, make one-way flow to control blood flow; Bottom chamber is fixed with chute and has the QI KOU of gas circuit turnover; The cylinder piston rod being fixed on the minitype cylinder of bottom chamber is connected with the slide block slided in chute, and slide block is connected with piston boit by connecting rod, minitype cylinder by gas circuit be placed in external solenoid directional control valve and source of the gas is connected; Source of the gas carries out inflation/deflation by switching solenoid directional control valve to minitype cylinder, makes cylinder piston rod promote slide block, and then drives piston boit to move reciprocatingly by connecting rod, realizes the function of artificial heart blood pump.The present invention can accurately control blood pump decrement, has the advantage that volume is little, air consumption is few.
Description
Technical field
The present invention relates to a kind of artificial organ device, be specifically related to a kind of artificial heart blood pump driven based on minitype cylinder, belong to technical field of medical instruments.
Background technology
Blood pump is as the core component of artificial heart, ventricular assist device, and the power source that its driving device adopts and the drives structure matched with it, determine the design of whole system to a great extent.Wherein, the type blood pump of beating is not only because natural imitation cardiac rhythm is beated, be conducive to the blood microcirculation perfusion of each main organs, and compared with the centrifugal pump of continuous pump blood, axial-flow pump, the type blood pump of beating can avoid high-speed rotating impeller and other mechanical wear to the damage of hemocyte.
Pneumatics is using air and noble gas as working media, and the quantity delivered of air is sufficient and without the need to cost, does not pollute, even if in very little space, also can realize tiny reciprocating action.Pneumatic drive system generally provides pressure by external power source, drives the barrier film that is closed in rigid chamber shell or capsule to move reciprocatingly, thus the blood of presses against diaphragm or capsule opposite side, and under the cooperation of check valve or valve, realizes directed blood-pumping function.The advantage of this drive form is blood pump barrier film or capsule uniform force, can not produce local pressure excessive and damage capsule.The general positive and negative pressure by adjustment source of the gas, conversion driving frequency and contraction relaxation cycle ratio, change aperture and the duration of ventilation of valve, regulate the physical signs such as heart rate, cardiac output, blood pressure waveform, make blood pump adapt to the body requirement of human body or laboratory animal, the development of artificial heart has great importance.
Typical pneumatic blood pump Abiomed BVS5000, Luo Ye pumps etc., although shape size is different, mostly close the configuration of injection blood mouth, blood outlet, pump chamber and check valve to the impact of its blood flow.But traditional pneumatic blood pump is when driving implantable artificial heart, due to the real time status of barrier film or capsule cannot be seen, thus suitably bleed pressure can not be adjusted, cause the excessive or air feed air pressure of air feed air pressure not enough, also exist oversize simultaneously, be difficult to the problems such as implantation, become the bottleneck problem that the development of such blood pump faces.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of artificial heart blood pump driven based on minitype cylinder is provided, by controlling the stroke of minitype cylinder piston rod, reaching the effect accurately controlling blood pump decrement, there is the advantage that volume is little, air consumption is few simultaneously.
The technical scheme that the present invention solves its technical problem is:
Based on the artificial heart blood pump that minitype cylinder drives, be placed in inside of human body, it comprises minitype cylinder, the pump housing and piston boit;
Described piston boit and inner circumferential are fixed on this piston boit upper periphery and the blood diaphragm that periphery is fixed on pump housing internal chamber wall is divided into mutually isolated upper chamber and lower chambers pump housing inner chamber, this blood diaphragm is elastomer, and reciprocating between this upper chamber and lower chambers with described piston boit;
Described upper chamber is pump haemocoele room and is provided with into blood mouth and blood outlet, and this enters blood mouth and blood outlet is respectively arranged with check valve, makes one-way flow to control blood flow;
Described bottom chamber is fixed with chute and has the QI KOU of gas circuit turnover;
Described minitype cylinder is fixed on described bottom chamber, the cylinder piston rod of this minitype cylinder is connected with the slide block slided in described chute, this slide block is connected with described piston boit by connecting rod, and described minitype cylinder is connected with the solenoid directional control valve and source of the gas that are placed in human external successively by described gas circuit;
Described source of the gas carries out inflation/deflation by switching described solenoid directional control valve to described minitype cylinder, described cylinder piston rod is made to promote described slide block, and then drive described piston boit to move reciprocatingly by described connecting rod, make blood from described in enter blood mouth flow into and flowed out by blood outlet, realize the function of described artificial heart blood pump.
Further, the described pump housing is cylindric, and described piston boit is cylindric, and described blood diaphragm is that annular seal arrangement is in case Hemostatic Oral Liquid flows into lower chambers from described upper chamber.
Further, described piston boit is made by light material and is fixed as one with described blood diaphragm.
Further, for being slidably matched between described slide block and described chute, lubricating condition is good, and described slide block does linear slide in this chute.
Further, the external diameter of described minitype cylinder is 4mm, and effective travel is 6mm.
Further, described connecting rod one end is hinged on below described piston boit, and the other end is hinged on described slide block.
Further, described in enter blood mouth and be connected with Human left ventricle, described blood outlet is connected with human aortic.
The present invention, in conjunction with pneumatics and type blood pump technology of beating, utilizes the reciprocating motion of cylinder piston rod to cause the volume of pump haemocoele room to change, and then the working condition of simulating nature heart; By regulating the commutating period of solenoid directional control valve, control the reciprocating speed of minitype cylinder close with natural heart; By adjusting the volume size of upper chamber or selecting suitable cylinder piston rod effective travel, the output blood volume controlling to beat to meet back-up needs, and produces suitable power output to meet the injection pressure of physiological condition.
Compared with prior art, invention achieves following beneficial effect: first traditional, pneumatic blood pump adopts gas directly to compress diaphragm or capsule, due to the real time status of diaphragm or capsule cannot be seen, suitably can not adjust bleed pressure, cause the excessive or air feed air pressure of air feed air pressure not enough, and the present invention being by controlling stretching out and retracting of minitype cylinder piston rod, indirectly compressing diaphragm or capsule, it by changing the stroke of minitype cylinder or changing length of connecting rod, can reach and accurately control its decrement; Secondly, traditional, pneumatic blood pump exists oversize, is difficult to the problems such as implantation, and structure of the present invention is simple, and its characteristic size can be very nearly the same with now up-to-date hydraulic suspension type artificial heart, well solves oversize, is difficult to the problem implanted; Finally, because minitype cylinder own vol is little, its air consumption, much smaller than traditional, pneumatic blood pump device, therefore can carry source of the gas by external, and carries out the mode of timing inflation to source of the gas, solves the problem that the main equipments such as external outfit air compressor machine are difficult to carry.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Wherein 1 is upper chamber, and 2 is blood diaphragms, and 3 is lower chambers, and 4 is piston boits, and 5 is connecting rods, and 6 is chutes, 7 is slide blocks, and 8 is cylinder piston rods, and 9 is minitype cylinders, and 10 is check valves, and 11 is solenoid directional control valves, 12 is sources of the gas, and 13 is pump housings, and A is into blood mouth, and B is blood outlet, and C is QI KOU.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail, and following embodiment is implemented premised on technical solution of the present invention, gives detailed embodiment and concrete operating process.It should be pointed out that to those skilled in the art, without departing from the principles and spirit of the present invention, done any amendment, equivalent replacement, modification and improvement, all should belong to protection scope of the present invention.
Incorporated by reference to consulting Fig. 1 and Fig. 2, illustrate the artificial heart blood pump driven based on minitype cylinder, be placed in inside of human body, it comprises minitype cylinder 9, the pump housing 13 and piston boit 4.
The described pump housing 13 is cylindric; Described piston boit 4 is cylindric, is made by light material; Described piston boit 4 and blood diaphragm 2 are divided into mutually isolated upper chamber 1 and lower chambers 3 this pump housing 13 inner chamber.Described blood diaphragm 2 is annular seal arrangement, and its inner circumferential is fixed on this piston boit 4 upper periphery, and periphery is fixed on the internal chamber wall of the pump housing 13, and described piston boit 4 is fixed as one, in case Hemostatic Oral Liquid flows into lower chambers 3 from described upper chamber 1 with described blood diaphragm 2.Described blood diaphragm 2 is elastomer, and it is reciprocating between this upper chamber 1 and lower chambers 3 with described piston boit 4.
Described upper chamber 1 is pump haemocoele room, and it is provided with into blood mouth A and blood outlet B, and this enters blood mouth A and blood outlet B is respectively arranged with check valve 10, only makes one-way flow to control blood flow; Described enter blood mouth A be connected with Human left ventricle, described blood outlet B is connected with human aortic.
Bottom in described lower chambers 3 is fixed with chute 6 and has QI KOU C, so that the turnover of gas circuit.
Described minitype cylinder 9 adopts horizontal assembly method, is fixed in described lower chambers 3, and the external diameter of this minitype cylinder 9 is 4mm, and effective travel is 6mm.The cylinder piston rod 8 of described minitype cylinder 9 is connected with slide block 7 by bolt, and this slide block 7 is arranged in described chute 6, and and for being slidably matched between described chute 6, lubricating condition is good, and described slide block 7 does linear slide in this chute 6.Described slide block 7 is connected with described piston boit 4 by connecting rod 5, and this connecting rod 5 one end is hinged on below described piston boit 4, and the other end is hinged on described slide block 7.Described minitype cylinder is connected with the solenoid directional control valve 11 and source of the gas 12 that are placed in human external successively by the described gas circuit by QI KOU C.
Described source of the gas 12 carries out inflation/deflation by switching described solenoid directional control valve 11 to described minitype cylinder 9, described cylinder piston rod 8 is made to promote described slide block 7, and then drive described piston boit 4 to move reciprocatingly by described connecting rod 5, make blood from described in enter blood mouth A and flow into, and flowed out by blood outlet B, thus realize the function of described artificial heart blood pump.
The work process of the described artificial heart blood pump based on minitype cylinder driving is as follows: when starting working, the check valve 10 entering blood mouth A is opened, blood passes through to flow into upper chamber 1 into blood mouth A, now, minitype cylinder 9 is in retracted mode, be placed in external solenoid directional control valve 11 to commutate, the rodless cavity that the gas of source of the gas 12 enters minitype cylinder 9 by the air inlet pipeline of QI KOU C is inflated, the rod chamber of minitype cylinder 9 by gas exhaust piping via QI KOU C aerofluxus, gas push cylinder piston rod 8 stretches out, slide block 7 slides in chute 6, drivening rod 5 does oscillating motion simultaneously, because connecting rod 5 upper end and piston boit 4 are chain connections, therefore, connecting rod 5 pushes up piston boit 4 and moves upward, and then the blood in upper chamber 1 is extruded, now the blood pressure of upper chamber 1 increases, the check valve 10 entering blood mouth A is greater than outside chamber due to intracavity blood pressure, enter blood mouth A to close, intracavity blood pressure washes the check valve 10 of blood outlet B open, and be mapped in aorta by check valve 10 and go, this process is equivalent to the systole of nature heart, then, be placed in external solenoid directional control valve 11 action, the rod chamber that the gas of source of the gas 12 enters minitype cylinder 9 by QI KOU C is inflated, the rodless cavity of minitype cylinder 9 is exhausted by gas exhaust piping, gas push cylinder piston rod 8 is retracted, slide block 7 slides in chute 6, connecting rod 5 upper end draws piston boit 4 to move downward simultaneously, now upper chamber 1 pressure reduces, the check valve 10 of blood outlet B is closed, the check valve 10 that blood passes through blood mouth A flows in upper chamber 1, and this process is equivalent to the relaxing period of nature heart, described artificial heart blood pump so completes one action circulation, along with blood pump constantly works, realizes the blood supply function that it replaces nature heart.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (7)
1., based on the artificial heart blood pump that minitype cylinder drives, be placed in inside of human body, it is characterized in that: described artificial heart blood pump comprises minitype cylinder, the pump housing and piston boit;
Described piston boit and inner circumferential are fixed on this piston boit upper periphery and the blood diaphragm that periphery is fixed on pump housing internal chamber wall is divided into mutually isolated upper chamber and lower chambers pump housing inner chamber, this blood diaphragm is elastomer, and reciprocating between this upper chamber and lower chambers with described piston boit;
Described upper chamber is pump haemocoele room and is provided with into blood mouth and blood outlet, and this enters blood mouth and blood outlet is respectively arranged with check valve, makes one-way flow to control blood flow;
Described bottom chamber is fixed with chute and has the QI KOU of gas circuit turnover;
Described minitype cylinder is fixed on described bottom chamber, the cylinder piston rod of this minitype cylinder is connected with the slide block slided in described chute, this slide block is connected with described piston boit by connecting rod, and described minitype cylinder is connected with the solenoid directional control valve and source of the gas that are placed in human external successively by described gas circuit;
Described source of the gas is inflated described minitype cylinder by switching described solenoid directional control valve, described cylinder piston rod is made to promote described slide block, and then drive described piston boit to move reciprocatingly by described connecting rod, make blood from described in enter blood mouth flow into and flowed out by blood outlet, realize the function of described artificial heart blood pump.
2. the artificial heart blood pump driven based on minitype cylinder according to claim 1, it is characterized in that: the described pump housing is for cylindric, described piston boit is cylindric, and described blood diaphragm is that annular seal arrangement is in case Hemostatic Oral Liquid flows into lower chambers from described upper chamber.
3. the artificial heart blood pump driven based on minitype cylinder according to claim 2, is characterized in that: described piston boit is made by light material and is fixed as one with described blood diaphragm.
4. the artificial heart blood pump driven based on minitype cylinder according to claim 1, is characterized in that: for being slidably matched between described slide block and described chute, and lubricating condition is good, and described slide block does linear slide in this chute.
5. the artificial heart blood pump driven based on minitype cylinder according to claim 1, is characterized in that: the external diameter of described minitype cylinder is 4mm, and effective travel is 6mm.
6. the artificial heart blood pump driven based on minitype cylinder according to claim 1, is characterized in that: described connecting rod one end is hinged on below described piston boit, and the other end is hinged on described slide block.
7. the artificial heart blood pump driven based on minitype cylinder according to claim 1, is characterized in that: described in enter blood mouth and be connected with Human left ventricle, described blood outlet is connected with human aortic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676536.0A CN103656770B (en) | 2013-12-11 | 2013-12-11 | Based on the artificial heart blood pump that minitype cylinder drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676536.0A CN103656770B (en) | 2013-12-11 | 2013-12-11 | Based on the artificial heart blood pump that minitype cylinder drives |
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| Publication Number | Publication Date |
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| CN103656770A CN103656770A (en) | 2014-03-26 |
| CN103656770B true CN103656770B (en) | 2015-10-14 |
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| CN201310676536.0A Expired - Fee Related CN103656770B (en) | 2013-12-11 | 2013-12-11 | Based on the artificial heart blood pump that minitype cylinder drives |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2635634C1 (en) * | 2016-12-07 | 2017-11-14 | Федеральное государственное бюджетное учреждение "Федеральный научный центр трансплантологии и искусственных органов имени академика В.И. Шумакова" Министерства здравоохранения Российской Федерации (ФГБУ "ФНЦТИО им. ак. В.И. Шумакова" Минздрава России) | Pneumatic actuator for artificial heart ventricles |
| EP3600479A1 (en) * | 2017-03-31 | 2020-02-05 | Corwave SA | Implantable pump system having a rectangular membrane |
| CN107456616A (en) * | 2017-08-04 | 2017-12-12 | 中国医学科学院阜外医院 | Heart analog machine |
| WO2019024111A1 (en) * | 2017-08-04 | 2019-02-07 | 中国医学科学院阜外医院 | Cardiac simulation device |
| CN107424497A (en) * | 2017-08-25 | 2017-12-01 | 深圳市应孕而生健康管理有限公司 | A kind of diagnosis by feeling the pulse simulator and simulation blood supply device |
| CN110264810B (en) * | 2019-05-23 | 2023-09-26 | 南京航空航天大学 | Pulse pressure reproduction device and pulse training method |
| CN110339412B (en) * | 2019-07-15 | 2020-10-30 | 燕山大学 | Pulsating artificial blood pump |
| CN111438883A (en) * | 2020-03-23 | 2020-07-24 | 深圳市肯嘉科技有限公司 | Single-finger vertical pneumatic clamp |
| CN112810695A (en) * | 2021-01-28 | 2021-05-18 | 徐州工业职业技术学院 | Automatic automobile parking aligning device and method |
| CN113647379A (en) * | 2021-07-18 | 2021-11-16 | 华中科技大学同济医学院附属协和医院 | Non-hemolysis continuous-jumping off-body heart transfer device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7390294B2 (en) * | 2004-05-28 | 2008-06-24 | Ethicon Endo-Surgery, Inc. | Piezo electrically driven bellows infuser for hydraulically controlling an adjustable gastric band |
| CN101269245B (en) * | 2008-05-15 | 2011-07-20 | 上海交通大学 | Ultrasonic motor drive diaphragm type blood pump |
| CN101856521B (en) * | 2010-04-28 | 2011-12-28 | 湖南人文科技学院 | Heart assisting blood pumping device |
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2013
- 2013-12-11 CN CN201310676536.0A patent/CN103656770B/en not_active Expired - Fee Related
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| CN103656770A (en) | 2014-03-26 |
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