CN104346987A - Heart chamber simulator driving mechanism - Google Patents
Heart chamber simulator driving mechanism Download PDFInfo
- Publication number
- CN104346987A CN104346987A CN201310347527.7A CN201310347527A CN104346987A CN 104346987 A CN104346987 A CN 104346987A CN 201310347527 A CN201310347527 A CN 201310347527A CN 104346987 A CN104346987 A CN 104346987A
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- driving mechanism
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- piston
- heart
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- 210000005242 cardiac chamber Anatomy 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 6
- 230000009467 reduction Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 238000010009 beating Methods 0.000 abstract description 3
- 230000010247 heart contraction Effects 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract 2
- 210000004165 myocardium Anatomy 0.000 description 19
- 239000000463 material Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 6
- 210000003709 heart valve Anatomy 0.000 description 5
- 241000463219 Epitheca Species 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 210000004115 mitral valve Anatomy 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 210000001765 aortic valve Anatomy 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000035487 diastolic blood pressure Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Algebra (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a heart chamber simulator driving mechanism, which comprises a motor, a speed reducer, a crank shaft connecting rod mechanism, a linear guide rail and a piston air cylinder, wherein an output end of the motor is connected with an input shaft of the speed reducer, an output shaft of the speed reducer is connected with one end of the linear guide rail through the crank shaft connecting rod mechanism, the other end of the linear guide rail is connected with the piston air cylinder through a shaft coupler, an air hole is formed in the side wall of the piston air cylinder, and the air hole is connected with a heart chamber simulator through a pipeline. The driving mechanism belongs to a driving mechanism capable of providing a pulsation type power source for the heart chamber simulator according to the set frequency and discharge capacity. The driving mechanism has the advantages that the pulsation feature of the beating of the heart chamber simulator can be realized, meanwhile, the beating frequency and the discharge capacity can be respectively regulated, and the human body heart beating process is more really simulated.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of heart chamber simulator driving mechanism.This driving mechanism is used for the intracardiac interventional medical device research and development of auxiliary Wicresoft, blood circulation and medical image research and training doctor.
Background technology
Heart chamber simulator driving mechanism is for driving heart chamber simulator to carry out the driving mechanism of regular motion according to required mode, be that simulation human heart is beated and a sanguimotor gordian technique, the development for minimally invasive heart interventional medicine has great importance.
At present, most of heart simulator is static medical model, for medical teaching, does not have power drive portion, cannot embody sanguimotor dynamic perfromance.Some developing in the recent period in the world can simulate the high-end heart simulator of heart behavioral characteristics, its driving mainly contains following two classes: 1, connect fluid pressure line and hydraulic component structure hydraulic circuit in cardiac module outside, adopt pump to provide power to realize blood circulation in hydraulic circuit; Do not there is provided power source in the hydraulic circuit of 2, cardiac module build up outside, provide sanguimotor power to the load of heart exterior axis or side direction.For the former, use pump to realize sanguimotor mode in outer loop pipeline contrary with the corresponding pressure that truly circulates, inject liquid toward chamber interior, pressure raises chamber expansion simultaneously, correspond to chamber diastole; Externally pump liquid from chamber, pressure reduces chamber contraction simultaneously.And heartbeat truth is: cause internal pressure to raise after chamber contraction, blood is won out; Chamber diastole, pressure reduces, and blood can pour in.For the latter, the chambers of the heart distortion of generation extrudes the chambers of the heart by single-point or several point and causes, and the overall shrinkage of description cardiac muscle that cannot be true to nature, causes the analog distortion of liquid-circulating process serious.Therefore the simulation to heartbeat realized according to above-mentioned two kinds of drive principle can not reflect heartbeat process really.
Summary of the invention
Correctly can not embody distortion that the corresponding relation of the height of pressure in heart contraction and diastole process and external load cause and can not embody the distortion of myocardium overall shrinkage in order to overcome existing heart simulator and cause heart simulator truly cannot reflect the problem of heartbeat process, the invention provides a kind of driving mechanism of heart chamber simulator, this driving mechanism adopts step working method can simulate the hopping process of human heart pulsating, correct pressure dependence can either be met, also the bulk deformation process of cardiac muscle can be embodied, thus true to nature reflect heartbeat process.
Technical scheme of the present invention is:
A kind of heart chamber simulator driving mechanism, this driving mechanism comprises motor, speed reduction unit, crankshaft connecting rod system, line slideway and piston-cylinder; Wherein: the input shaft of the output shaft connection reducer of described motor, the output shaft of speed reduction unit connects one end of line slideway by crankshaft connecting rod system, the other end of described line slideway connects piston-cylinder by shaft coupling; Described piston-cylinder sidewall has pore, and described pore connects described heart chamber simulator by pipeline.
The other end of described line slideway is connected with the piston rod of piston-cylinder by shaft coupling.
End face relative with piston rod on described piston-cylinder offers the hole be communicated with ambient atmosphere.
Described crankshaft connecting rod system comprises crank, discharge capacity regulating tank and connecting rod, and crank is provided with discharge capacity regulating tank, and connecting rod is provided with hole pin, crank and connecting rod is flexibly connected through pin-and-hole and discharge capacity regulating tank by bearing pin.Described discharge capacity regulating tank is out the elongate holes on crank, and described bearing pin can move back and forth in this elongate holes.
Heart chamber simulator can carry out regulating system air capacity by changing by discharge capacity regulating tank change crank and connecting rod link position.
Heart chamber simulator structure of the present invention is as follows:
This heart chamber simulator comprises outer sheath, myocardium, cardiac valves and is formed in the hollow cavity (pressure chamber) closed between outer sheath and myocardium; The wall of described outer sheath has through hole, the inputing or outputing in hollow cavity for liquid or gas; Its material of described epitheca is hard macromolecular material, and described myocardium and valvular material are the macromolecular material meeting human body respective organization mechanical property.
Described epitheca, myocardium and cardiac valves are all bionical biological organization materials, wherein: epitheca material is preferably polyurethane, and shore hardness 70 ~ 90; Myocardium and valvular material are preferably TPE material, shore hardness 25 ~ 50.
Described cardiac valves is adhered on myocardium upper surface, and its bonding location meets human anatomic structure; Described outer sheath and the myocardium part except hollow cavity is fixed together by bonding mode.
Principle of work of the present invention is as follows:
This drive unit adopts linkage assembly and guiding rail mechanism rotation to be converted to rectilinear motion to drive cylinder moving, and adopt piston-cylinder as topworks, gas is as final Power output medium.The pneumatic driven power source of pulsating can be provided according to specifying the frequency that requires and discharge capacity for heart chamber simulator by controlling speed reduction unit and motor.
This drive unit can realize the two groups of actions of air-breathing and exhaust, the driving power of the pulsating of different frequency can be provided according to system requirements, can change cylinder location carrys out regulating system air capacity simultaneously, can realize carrying out regular driving to heart chamber simulator according to required mode of motion.
Beneficial effect of the present invention is as follows:
1, the present invention utilizes pneumatic step drive circuit to drive for the heart chamber simulator of ad hoc structure.Realize to-and-fro movement by driven by motor linkage assembly and line slideway, by driving cylinder piston to realize air-breathing and exhaust event, driving heart chamber simulator to realize pulsating and to beat effect.By regulating the rotating speed adjustable heart chamber simulator Beating Rate of motor, by adjusting cylinders installation site, the often rich discharge capacity of adjustable adjustment heart chamber simulator.
2, the present invention can simulate heart and to pulse really hopping process, the often rich output quantity of heartbeat can be controlled simultaneously, the key parameters such as jumping frequency rate, overcome the shortcoming of contraction and the diastolic pressures mistake using pump to bring in outside circulation line, and cause by exterior mechanical loading the problem that chambers of the heart deformation and actual myocardial contraction and diastole process deformation gap are larger.
Accompanying drawing explanation
Fig. 1 heart simulator driving mechanism structure figure;
Fig. 2 is the structural representation of crankshaft connecting rod system in Fig. 1;
In figure: 1-motor; 2-speed reduction unit; 3-crankshaft connecting rod system; 31-crank; 32-discharge capacity regulating tank; 33-connecting rod; 4-line slideway; 5-shaft coupling; 6-piston rod; 7-piston-cylinder; 8-pore; 9-hole.
Fig. 3 is heart simulator structural representation of the present invention; In figure: the 12-chambers of the heart; 13-myocardium; 14-hollow cavity; 15-through hole (feed liquor/gas port); 16-outer sheath; 17-bicuspid valve; 18-aortic valve.
Duty in the middle of Fig. 4 heart simulator drives.
Fig. 5 heart simulator drives air-breathing duty.
Fig. 6 heart simulator drives exhaust work state.
Embodiment
Below in conjunction with drawings and Examples in detail the present invention is described in detail.
As shown in Figure 1, heart chamber simulator driving mechanism of the present invention comprises motor 1, speed reduction unit 2, crankshaft connecting rod system 3, line slideway 4 and piston-cylinder 7; The input shaft of the output shaft connection reducer 2 of described motor 1, the output shaft of speed reduction unit 2 connects one end of line slideway 4 by crankshaft connecting rod system 3, the other end of described line slideway 4 is connected with the piston rod 6 of piston-cylinder 7 by shaft coupling 5; Described piston-cylinder 7 sidewall has pore 8, and described pore 8 connects described heart chamber simulator (being connected with its through hole 15) by pipeline.End face relative with piston rod 6 on described piston-cylinder 7 offers the hole 9 be communicated with ambient atmosphere.
As shown in Figure 2, described crankshaft connecting rod system 3 comprises crank 31, discharge capacity regulating tank 32 and connecting rod 33, and crank 31 is provided with discharge capacity regulating tank 32, and connecting rod 33 is provided with empty pin, crank 31 and connecting rod 33 is flexibly connected through pin-and-hole and discharge capacity regulating tank 32 by bearing pin.Described discharge capacity regulating tank is out the elongate holes on crank, and described bearing pin can move back and forth in this elongate holes.
Heart chamber simulator can carry out regulating system air capacity by changing by discharge capacity regulating tank change crank and connecting rod link position.
The structure of described heart chamber simulator as shown in Figure 3, cardiac muscle is split as by the basis of human heart and is made up of the myocardium 13 of inside, outer sheath 16 and the hollow cavity (pressure chamber) 14 closed between myocardium 13 and outer sheath 16, the wall of outer sheath 16 has and passes into or the through hole 15 of sucking-off liquid (gas) body.Myocardium 13 and cardiac valves (bicuspid valve 17 and aortic valve 18) are made by the macromolecular material meeting human body respective organization mechanical property, are preferably TPE material, shore hardness 25 ~ 50; Outer sheath 16 is made by hard macromolecular material, is preferably polyurethane, shore hardness 70 ~ 90.Cardiac valves is bonding with myocardium 13 connected mode, and position meets human anatomic structure (556 strong adherence glue that letter tackifier (Shenzhen) company limited of bonding employing China produces, the agent that is situated between is 768); Outer sheath 16 and myocardium 13 part except hollow cavity 14 is fixed together by bonding mode.Passed in pressure chamber 14 by feed liquor/gas port or sucking liquid or gas, to change the pressure in pressure chamber, contraction and the diastole of the chambers of the heart 12 can be realized.
Above-mentioned simulator can realize contraction and the diastole of myocardium by the pressure changing hollow cavity, be specially: when hollow cavity external and internal pressure is equal, continue in hollow cavity, input liquid (gas) body, cavity internal pressure increase (corresponding to heart to diastole state change), myocardium thickness constant but produce local deformation; When hollow cavity external and internal pressure is equal, export liquid (gas) body in hollow cavity, cavity internal pressure reduces (changing to contracted state corresponding to heart), myocardium less thick.State when hollow cavity external and internal pressure is equal is called the anatomical shape of the chambers of the heart, and the anatomical shape of the chambers of the heart is between shrinking the intermediateness between diastole.
Heart chamber simulator driving mechanism of the present invention is by motor 1 driving crank linkage assembly 3, by the interaction of crankshaft connecting rod system 3 with line slideway 4, motor 1 is converted to rectilinear motion, rectilinear motion is converted to the change of pneumatic volume and pressure by piston-cylinder 7, thus drives heart chamber simulator.
Fig. 4 is driving mechanism original operating state of the present invention, and in this case, the pressure chamber in heart chamber simulator mediates nature relaxed state, and linkage assembly mediates stroke state.This state is intermediate state, and when connecting rod continues to rotate counterclockwise, system is in air-breathing impulse stroke, and the chambers of the heart expands, and when connecting rod rotates clockwise, system is in instroke duty, and the chambers of the heart shrinks.
Fig. 5 is driving mechanism air-breathing impulse stroke end state of the present invention, system is from exhaust work end of travel (connecting rod is in low order end position), linkage assembly rotarily drives line slideway to left movement, cylinder carries out air-breathing work, causes the pressure in pressure cavity of heart chamber simulator to reduce, and mitral valve is opened, when arriving shown position when moving, slide block reaches range left, and system reaches air-breathing duty end, and the chambers of the heart expands and reaches maximum volume.
Fig. 6 is driving mechanism exhaust work end of travel state of the present invention, system is from air-breathing duty end (slide block is in high order end position), linkage assembly rotarily drives line slideway and moves right, cylinder is exhausted work, and cause the pressure in pressure cavity of heart chamber simulator to increase, the chambers of the heart outwardly discharges liquid, when arriving shown position when moving, slide block reaches range to the right, and system arrives exhaust work state end, and the chambers of the heart shrinks and reaches minimum volume.
Claims (5)
1. a heart chamber simulator driving mechanism, is characterized in that: this driving mechanism comprises motor, speed reduction unit, crankshaft connecting rod system, line slideway and piston-cylinder; Wherein: the input shaft of the output shaft connection reducer of described motor, the output shaft of speed reduction unit connects one end of line slideway by crankshaft connecting rod system, the other end of described line slideway connects piston-cylinder by shaft coupling; Described piston-cylinder sidewall has pore, and described pore connects described heart chamber simulator by pipeline.
2. heart chamber simulator driving mechanism according to claim 1, is characterized in that: the other end of described line slideway is connected with the piston rod of piston-cylinder by shaft coupling.
3. heart chamber simulator driving mechanism according to claim 1, is characterized in that: end face relative with piston rod on described piston-cylinder offers the hole be communicated with ambient atmosphere.
4. heart chamber simulator driving mechanism according to claim 1, it is characterized in that: described crankshaft connecting rod system comprises crank, discharge capacity regulating tank and connecting rod, connecting rod is provided with pin-and-hole, crank is provided with discharge capacity regulating tank, crank and connecting rod is flexibly connected through pin-and-hole and discharge capacity regulating tank by bearing pin.
5. heart chamber simulator driving mechanism according to claim 1, it is characterized in that: described discharge capacity regulating tank is out the elongate holes on crank, described bearing pin can move back and forth in this elongate holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310347527.7A CN104346987B (en) | 2013-08-09 | 2013-08-09 | Heart chamber simulator driving mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310347527.7A CN104346987B (en) | 2013-08-09 | 2013-08-09 | Heart chamber simulator driving mechanism |
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| Publication Number | Publication Date |
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| CN104346987A true CN104346987A (en) | 2015-02-11 |
| CN104346987B CN104346987B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310347527.7A Expired - Fee Related CN104346987B (en) | 2013-08-09 | 2013-08-09 | Heart chamber simulator driving mechanism |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261274A (en) * | 2015-11-13 | 2016-01-20 | 苏州大学 | Piston type ventricle simulator for in-vitro simulation circulation system |
| CN105976685A (en) * | 2016-07-15 | 2016-09-28 | 陕西科技大学 | Device for simulating heart power |
| CN106033032A (en) * | 2016-07-08 | 2016-10-19 | 中国计量大学 | Simulating chamber for simulating blood circulation in vitro and implementing method thereof |
| 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 |
| 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 |
| WO2021005938A1 (en) * | 2019-07-05 | 2021-01-14 | 朝日インテック株式会社 | Cardiac simulator |
| CN112419854A (en) * | 2020-11-19 | 2021-02-26 | 北京理工大学 | Multi-point driving type heart beating simulator |
| CN112837594A (en) * | 2021-02-08 | 2021-05-25 | 中国人民解放军联勤保障部队第九〇〇医院 | Heart rhythm demonstration model capable of adjusting beating rhythm |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
| CN113763794A (en) * | 2021-09-10 | 2021-12-07 | 杭州大牧医疗科技有限公司 | Respiratory motion simulation device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261274A (en) * | 2015-11-13 | 2016-01-20 | 苏州大学 | Piston type ventricle simulator for in-vitro simulation circulation system |
| CN105261274B (en) * | 2015-11-13 | 2018-11-30 | 苏州大学 | Piston type ventricle simulator for in-vitro simulation circulation system |
| CN106033032A (en) * | 2016-07-08 | 2016-10-19 | 中国计量大学 | Simulating chamber for simulating blood circulation in vitro and implementing method thereof |
| CN106033032B (en) * | 2016-07-08 | 2018-09-28 | 中国计量大学 | For in-vitro simulated sanguimotor simulation chamber and implementation method |
| CN105976685A (en) * | 2016-07-15 | 2016-09-28 | 陕西科技大学 | Device for simulating heart power |
| 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 |
| WO2021005938A1 (en) * | 2019-07-05 | 2021-01-14 | 朝日インテック株式会社 | Cardiac simulator |
| CN112419854A (en) * | 2020-11-19 | 2021-02-26 | 北京理工大学 | Multi-point driving type heart beating simulator |
| CN112419854B (en) * | 2020-11-19 | 2021-09-10 | 北京理工大学 | Multi-point driving type heart beating simulator |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
| CN112837594A (en) * | 2021-02-08 | 2021-05-25 | 中国人民解放军联勤保障部队第九〇〇医院 | Heart rhythm demonstration model capable of adjusting beating rhythm |
| CN112837594B (en) * | 2021-02-08 | 2024-05-03 | 中国人民解放军联勤保障部队第九〇〇医院 | Rhythm demonstration model capable of adjusting beat rhythm |
| CN113763794A (en) * | 2021-09-10 | 2021-12-07 | 杭州大牧医疗科技有限公司 | Respiratory motion simulation device |
| CN113763794B (en) * | 2021-09-10 | 2022-04-12 | 杭州大牧医疗科技有限公司 | Respiratory motion simulation device |
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| Publication number | Publication date |
|---|---|
| CN104346987B (en) | 2017-04-26 |
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