CN104548229B - A kind of heart assistance beating system based on piezoelectric effect - Google Patents
A kind of heart assistance beating system based on piezoelectric effect Download PDFInfo
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- CN104548229B CN104548229B CN201410826361.1A CN201410826361A CN104548229B CN 104548229 B CN104548229 B CN 104548229B CN 201410826361 A CN201410826361 A CN 201410826361A CN 104548229 B CN104548229 B CN 104548229B
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- Prior art keywords
- heart
- piezo
- composite material
- heartbeat
- wall
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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
- A61M60/50—Details relating to control
-
- 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
Abstract
The invention discloses a kind of novel, based on piezoelectric effect heart assistance beating systems.This system feature are as follows: system includes the assist pulsation net being made of soft alloy and piezo-electricity composite material and control module, the pulsating net include with for providing the outer wall alloy mesh supported, the inner wall alloy mesh being bonded completely with heart and the shape adjuster being made of between two walls piezoelectric ceramics, the control module includes heartbeat inductor, intelligent processing module and power supply module, the system can incude heartthrob, and pulsatile range is adjusted, be conducive to heart and restore normal function.
Description
Technical field
The present invention relates to medical equipment apparatus field more particularly to a kind of heart assistance beating systems.
Background technique
Heartbeat can be such that blood is recycled, nutrition required for providing for each portion's conveyed of body and the friendship for carrying out oxygen
It changes.When heart is because of severe and disease wound, partially or completely loss of function and when cannot be given treatment to conventional method, doctor now
The method for the treatment of technology first is that the natural heart using allogeneic is transplanted, but this method is because for heart person source difficulty,
Exist after transplanting and the problems such as is immunoreacted, repels, therefore rather than later total ideal solution party.In recent years, clinically lead to
The heart that disease damage is often partially or completely substituted using made device, compensates its physiological function.
It the use of more heart assistance beating instrument is at present left ventricular assist device, its working principle is that being connected by pipeline
External air source provides pulsatile flow power, and atrium sinistrum or left ventricle blood flow are introduced the auxiliary pump housing, enters through pump housing driving blood flow
Aorta, to substitute left heart blood-pumping function.But current merging mechanical blood pump can influence the homeostasis of collective, with complication
Form show as infection, bleeding, thromboembolism, organ failure, right heart failure and device damage etc., the dress of common diaphragm pump
Set that rate of breakdown is very high and service life is short.On the other hand, blood pump cannot be synchronous with heartbeat, thus cannot in heart
The physical stress variation in portion is adapted, and influences the functional rehabilitation of heart.
Authorization Notice No. is that the utility model patent of CN202569021 proposes and a kind of influences heartbeat using Fluid pressure
The heart assistance circulatory system of amplitude, system include scalable cystidium, support frame, fluid media (medium) and are filled with or extract out fluid
Pump, system structure is complex, and device is more.
Above-mentioned patent and the prior art have the following technical defects: system to itself heart destroy it is larger, easily cause bleeding,
The complication such as thrombus and infection, system structure is complicated, and volume is larger, and power consumption is high, short using the time.
Summary of the invention
In view of the above problems in the prior art, the heart assistance beating that the present invention provides a kind of based on piezoelectric effect
System, can experience the frequency and amplitude of heartbeat, and heart is cooperated to be finely adjusted its pulsatile range, injure to heart
It is few, and not will cause bleeding and thrombus problem.
System includes the assist pulsation net being made of soft alloy and piezo-electricity composite material and control module.
The assist pulsation net includes and is used to provide the outer wall alloy mesh of support, closes with the inner wall that heart is bonded completely
The shape adjuster being made of between golden net and two walls piezo-electricity composite material.
The alloy network exterior insulation is only that the part that shape adjuster connects is equipped with conductiving point, for being shape
Adjuster power supply.
The shape adjuster is realized that the composite material includes outer layer metal electrode by multiple piezo-electricity composite materials
Layer A, intermediate piezoceramics layer and inner layer metal electrode layer B, three layers are closely as one." the metal electrode layer A " is removed and is done
Electrode, which uses, also to be needed as metal negative, need to be using ductility is low, has certain thickness sheet metal." the metal electrode layer B "
Only make electrode use, it is desirable that ductility is fine.The Novel piezoelectric composite material uses N-type double-spiral structure.Described is new
Type piezo-electricity composite material " piezoceramics layer " double helix circle center line connecting need to be overlapped with axis.
After energization, it is axially elongated that voltage by metal electrode occurs that " piezoceramics layer " every piece of disk, simultaneously " gold
Belong to electrode layer A " shape invariance, therefore shunk close to the piezoelectric ceramics of the side A with respect to the side B, expands full wafer ceramics along axial screw shape,
Change inner wall shape, and then influences the shrinkage of heart.
The control module includes heartbeat inductor, intelligent processing module and power supply module.
The heartbeat inductor is used to incude the frequency and amplitude of heartbeat, and the intelligent processing module is used
In the data for receiving heartbeat inductor, the output voltage of power supply module is adjusted, thus change the deformation stroke of piezoelectric material,
The final adjusting realized to heartbeat amplitude, the power supply module are connected with alloy network, are Piezoelectric anisotropy by alloy network
Material power supply.
The thermos have the advantages that the system can incude heartthrob, and pulsatile range is adjusted, is conducive to heart
Restore normal function.Realize that electricity consumption is small to the miscellaneous function of heartbeat using piezo-electricity composite material in system, it is small in size,
It is light-weight, the long period can be used.System is fully recessed into body, and not will cause bleeding without destruction to blood vessel and ventricle
With the complication such as thrombus.
Detailed description of the invention
Fig. 1 is the system block diagram in the present embodiment
Fig. 2 is schematic diagram of auxiliary pulsatile net in the present embodiment
Fig. 3 is side view when the piezo-electricity composite material in the embodiment of the present invention is not powered on
Fig. 4 is side view when the piezo-electricity composite material in the embodiment of the present invention is powered
Specific embodiment
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of novel heart
Dirty assist pulsation system, with reference to the accompanying drawings of the specification, further illustrating the embodiments of the present invention are made.
As shown in Figure 1, system includes the assist pulsation net being made of soft alloy and piezo-electricity composite material and control module.
The control module includes heartbeat inductor, intelligent processing module and power supply module.
The schematic diagram of auxiliary pulsatile net is as shown in Fig. 2, it wraps heart outer layer, with heart closely close to described
Assist pulsation net include and for providing between the outer wall net supported, the inner wall net and two walls that are bonded completely with heart by piezoelectricity
The shape adjuster of composite material composition.
The inside and outside wall can be made of conductive soft alloy, and alloy network exterior insulation is only that shape adjuster phase
The part connect is equipped with conductiving point, for powering for shape adjuster.
The shape adjuster is realized that the piezo-electricity composite material includes for doing electricity by multiple piezo-electricity composite materials
" the metal electrode layer A " of pole and metal negative；For doing " the metal electrode layer B " of electrode；For providing " the piezoelectricity of piezoelectric effect
Ceramic layer ".
" the metal electrode layer A " is also needed as metal negative except doing electrode and use, and holding own form is not after powered up
It is poor to generate deformation with " piezoceramics layer ", therefore ductility need to be used slightly lower or have certain thickness sheet metal for malleable, such as yellow
Copper sheet etc.." metal electrode layer A " need to combine closely with piezoceramics layer.
" the metal electrode layer B " only makees electrode use, it is desirable that ductility is fine, and silver layer burning infiltration or vacuum coating can be used
Mode realize.
" piezoceramics layer " is required in deformation, and deformation stroke is larger, and angle change can not occur for position after deformation
Change, highs and lows line is by axle center, and in the axial direction, the center of circle O1, O2 need to be on axis in deformation direction.
In no power, piezoceramics layer tightens, and side view (Fig. 3) is in English alphabet " N " type, and top view single-screw is in mosquito
Fragrant shape.
After energization, since " metal electrode layer A " deformation occurs, therefore shrinks, make with respect to the side B close to the piezoelectric ceramics of the side A
Full wafer ceramics along axial screw shape along axis elongation, meanwhile, helical structure can also accumulate the miniature deformation of every layer of spiral disk, most
It realizes eventually and is axially obtaining the purpose of larger stroke, as shown in Figure 4.
It acts on changeable inner wall shape simultaneously by multiple shape adjusters, and then influences the shrinkage of heart.
The heartbeat inductor is used to incude the frequency and amplitude of heartbeat.The inductor can be cardiac pressure
Sensor or venous pressure sensor.
The intelligent processing module is used to receive the data of heartbeat inductor, adjusts the output electricity of power supply module
Pressure, thus change the deformation stroke of piezoelectric material, the final adjusting realized to heartbeat amplitude.The module can be by microprocessor
It realizes.
The power supply module is connected with alloy network, is piezo-electricity composite material power supply by alloy network.
It may be noted that the description in this specification is for illustrative purposes only, and should not be construed to of the invention
Limitation, protection scope of the present invention are only dependent upon the protection scope of claims.
Claims (1)
- The system 1. a kind of heart assistance based on piezoelectric effect is beaten, it is characterized in that:System includes control module and the assist pulsation net that is made of soft alloy and piezo-electricity composite material,The assist pulsation net include for provide the outer wall alloy mesh of support, the inner wall alloy mesh being bonded completely with heart and The shape adjuster being made of between two walls piezoelectric ceramics, the outer wall alloy mesh and inner wall alloy mesh exterior insulation, with The part that shape adjuster connects is equipped with conductiving point, for transmitting electric energy for shape adjuster,The shape adjuster is realized that the piezo-electricity composite material is coated using upper layer and lower layer by multiple piezo-electricity composite materials Metal electrode, centre are the three-layer composite structure of piezoelectric ceramics, which is N-type double-spiral structure, two layers of spiral Center is overlapped, and can be extended in the axial direction toward both sides from shaft core position after energization, to change inner wall shape, and then be influenced The shrinkage of heart,The control module includes heartbeat inductor, intelligent processing module and power supply module,The heartbeat inductor is used to incude the frequency and amplitude of heartbeat, and the intelligent processing module is for connecing Get into the frame of mind for work the data of dirty beating inductor, adjusts the output voltage of power supply module, to change the deformation stroke of piezo-electricity composite material, The final adjusting realized to heartbeat amplitude, the power supply module by with the outer wall alloy mesh and the inner wall Alloy network is connected, and powers for piezo-electricity composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826361.1A CN104548229B (en) | 2014-12-25 | 2014-12-25 | A kind of heart assistance beating system based on piezoelectric effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826361.1A CN104548229B (en) | 2014-12-25 | 2014-12-25 | A kind of heart assistance beating system based on piezoelectric effect |
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| Publication Number | Publication Date |
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| CN104548229A CN104548229A (en) | 2015-04-29 |
| CN104548229B true CN104548229B (en) | 2019-03-19 |
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| CN201410826361.1A Active CN104548229B (en) | 2014-12-25 | 2014-12-25 | A kind of heart assistance beating system based on piezoelectric effect |
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| US3827426A (en) * | 1971-07-16 | 1974-08-06 | P Sawyer | Prosthetic pump |
| US4621617A (en) * | 1981-06-29 | 1986-11-11 | Sharma Devendra N | Electro-magnetically controlled artificial heart device for compressing cardiac muscle |
| US4731076A (en) * | 1986-12-22 | 1988-03-15 | Baylor College Of Medicine | Piezoelectric fluid pumping system for use in the human body |
| US4919661A (en) * | 1987-07-09 | 1990-04-24 | John Gibney | Autogeneous pumping chamber and procedures therefor |
| US6099460A (en) * | 1998-04-28 | 2000-08-08 | Denker; Stephen | Electromagnetic heart assist technique and apparatus |
| AUPQ100699A0 (en) * | 1999-06-17 | 1999-07-08 | Northern Sydney Area Health Service | An assist device for the failing heart |
| WO2001067985A1 (en) * | 2000-03-10 | 2001-09-20 | Paracor Surgical, Inc. | Expandable cardiac harness for treating congestive heart failure |
| US6887192B1 (en) * | 2000-09-08 | 2005-05-03 | Converge Medical, Inc. | Heart support to prevent ventricular remodeling |
| US20050020871A1 (en) * | 2003-07-21 | 2005-01-27 | Piergiorgio Tozzi | Artificial contractile tissue |
| US7935045B2 (en) * | 2005-04-06 | 2011-05-03 | The Texas A&M University System | Device for proactive modulation of cardiac strain patterns |
| US7715927B1 (en) * | 2007-03-21 | 2010-05-11 | Pacesetter, Inc. | Implantable myocardial infarction patch having electroactive polymer |
| EP2520252A1 (en) * | 2008-02-11 | 2012-11-07 | Corassist Cardiovascular Ltd. | Ventricular function assisting devices and methods of use thereof |
| CN102872486A (en) * | 2009-10-23 | 2013-01-16 | 杨碧波 | Cardiac impulse assist system |
| CN102038979B (en) * | 2009-10-23 | 2013-07-24 | 杨碧波 | Heart impulse assisting system |
| CN102107030B (en) * | 2009-12-28 | 2013-07-17 | 杨碧波 | Cardiac impulse assist device, cardiac impulse assist system and method for treating cardiac failure |
| CN102499872B (en) * | 2011-10-17 | 2014-06-18 | 南京大学 | Direct heart-assist device based on artificial muscle network |
| CN202569021U (en) * | 2012-03-21 | 2012-12-05 | 杭州凯健医疗器械有限公司 | Cardiac circulation assistance system |
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Effective date of registration: 20170630 Address after: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Applicant after: Chen Xiangning Address before: Private Economic Development Zone Zhenjiang city Jiangsu province 212021 Runzhou District run Hing Road East Applicant before: ZHENJIANG FENGCHENG CIVIL NETWORKING DEVICE TECHNOLOGY CO., LTD. |
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Effective date of registration: 20191125 Address after: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Patentee after: Luo Yilin Address before: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Patentee before: Chen Xiangning |
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Effective date of registration: 20210111 Address after: Room 343, pan Zhonglai building, 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210046 Patentee after: Nanjing Xinde Technology Co.,Ltd. Address before: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Patentee before: Luo Yilin |
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