CN202996155U - Heart chamber simulator driven by hydraulic or air-pressure artificial muscle - Google Patents
Heart chamber simulator driven by hydraulic or air-pressure artificial muscle Download PDFInfo
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- CN202996155U CN202996155U CN 201220659401 CN201220659401U CN202996155U CN 202996155 U CN202996155 U CN 202996155U CN 201220659401 CN201220659401 CN 201220659401 CN 201220659401 U CN201220659401 U CN 201220659401U CN 202996155 U CN202996155 U CN 202996155U
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Abstract
The utility model discloses a heart chamber simulator driven by a hydraulic or air-pressure artificial muscle. By using the simulator, a cardiac systolic and diastolic beating process pressure and chamber deformation can be actually reflected. The simulator comprises an outer sheath layer, a myocardium layer, cardiac valves and a closed hollow cavity formed between the outer sheath layer and the myocardium layer. A wall surface of the outer sheath layer is provided with a through hole, wherein input or output of a liquid (a gas) in the hollow cavity is via the through hole. Through changing the pressure in the hollow cavity, contraction and relaxation of a heart model can be realized. By using the model, a disadvantage that a contraction and relaxation pressure error caused by a pump which is used in an external circulation pipeline can be overcome, and a problem that a difference of the heart cavity deformation caused by external mechanical loading and the actual myocardial contraction and relaxation process deformation is large is solved; the heart chamber beating process deformation and a correct circulating pressure relationship are actually reflected.
Description
Technical field
The utility model relates to a kind of novel heart chamber simulator, is specifically related to the heart chamber simulator that a kind of hydraulic pressure or air pressure artificial-muscle drive.This simulator can be realized the simulation to heartbeat, 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 simulator is that it has following important meaning to the development of the intracardiac interventional medicine of Wicresoft for the equipment of simulation heartbeat and blood circulation process.At first, angiocardiopathy is the No.1 killer of human health, and each state all pays much attention to the medicine equipment research and development in heart Wicresoft's diagnosis and treatment fields.China medicine equipment enterprise also progressively begins to this high-end market seeking breakthrough, and the situation of being captured by offshore company to change market can present in the many decades in future and research and develop very widely situation.Many defectives such as zoopery is moved towards clinical necessary means as this series products, and existence configuration complexity, labor intensive and financial resources and experiment condition are limited, and be faced with the animal ethics problem, seriously hindered the research and development process of Medical Devices.Therefore towards the heart simulator of Wicresoft's diagnosis and treatment, can substitute to a certain extent zoopery, accelerate the innovation research and development of medicine equipment.Secondly, heart Wicresoft intervene operation requires very high to doctor's operant level, and operation carries out that in process, the doctor will suffer radiation injury, training of doctors process difficulty and have risk, and the simulator that needs can the realistic simulation human heart to beat is as auxiliary.In addition, the development of heart simulator also helps to provide important verification platform for the blood circulation of people's body, medical image processing etc.
At present, most of heart simulator is static medical model, is used for medical teaching, can't embody sanguimotor dynamic perfromance.The high-end heart simulator that some that develop in the recent period in the world can be simulated the heart behavioral characteristics mainly contains following two classes: 1, in outside fluid pressure line and the hydraulic pressure components and parts structure hydraulic circuit of connecting of cardiac module, adopt pump to provide power to realize blood circulation in hydraulic circuit; 2, do not provide power source in the hydraulic circuit of cardiac module build up outside, to the heart external shaft to or the load of side direction sanguimotor power is provided.For the former, use pump to realize the pressure in contrast that sanguimotor mode is corresponding with true circulation in the outer loop pipeline, toward the chamber interior filling liquid, the pressure chamber expansion simultaneously that raises, correspondence the chamber diastole; Pump liquid from chamber to the outside, pressure decreased chamber simultaneously shrinks.And the heartbeat truth is: cause internal pressure to raise after chamber shrinks, blood is won out; The chamber diastole, pressure decreased, blood can pour in.For the latter, the distortion of the chambers of the heart of generation is pushed the chambers of the heart by single-point or several point and is caused, the overall shrinkage of description cardiac muscle that can't be true to nature causes the analog distortion of liquid-circulating process serious.Therefore the simulation to heartbeat that realizes according to above-mentioned two kinds of principles can not reflect the heartbeat process really.
The utility model content
Can not correctly embody the corresponding relation of heart contraction and diastole course pressure height in order to overcome existing heart simulator, and the distortion that causes of external load can not embody myocardium overall shrinkage distortion and causes heart simulator can't truly reflect the problem of heartbeat process, the utility model proposes a kind of novel heart simulator, this simulator is pressed artificial-muscle to drive the chambers of the heart by liquid (gas) and is completed contraction and diastole, can either satisfy correct pressure dependence, also can embody the cardiac muscle the bulk deformation process, thereby reflection true to nature the heartbeat process.
The utility model is realized by following technical proposal:
The heart chamber simulator that a kind of hydraulic pressure or air pressure artificial-muscle drive, described simulator comprise outer sheath, myocardium, cardiac valves and be formed in outer sheath and myocardium between the hollow cavity (pressure chamber) that seals; Have through hole on the wall of described outer sheath, be used for liquid or gas inputing or outputing in hollow cavity; Its material of described epitheca is the hard macromolecular material, and described myocardium and valvular material are the macromolecular material that meets human body respective organization mechanical property.
Described epitheca, myocardium and cardiac valves are all bionical biological organization materials, and wherein: the epitheca material is preferably polyurethane, shore hardness 70～90; Myocardium and valvular material are preferably the TPE material, shore hardness 25 ~ 50.
Described cardiac valves is adhered on the 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.
Above-mentioned simulator can be realized contraction and the diastole of myocardium by the pressure that changes hollow cavity, be specially: when the hollow cavity external and internal pressure equates, continuation is inputted liquid (gas) body in hollow cavity, cavity internal pressure increases (changing to the diastole attitude corresponding to heart), and myocardium thickness is constant but produce local deformation; When the hollow cavity external and internal pressure equates, export liquid (gas) body in hollow cavity, cavity internal pressure reduces (changing to contracted state corresponding to heart), the myocardium less thick.State when the hollow cavity external and internal pressure equates is called the anatomical shape of the chambers of the heart, and the anatomical shape of the chambers of the heart is the intermediateness between contraction and diastole.
Advantage of the present utility model and beneficial effect are as follows:
The liquid (gas) that the utility model utilization is wrapped in outside heart chamber presses artificial-muscle (comprising myocardium, outer sheath and hollow cavity) to realize contraction and the diastole of chamber are driven, can overcome and use contraction that pump brings and the shortcoming of diastole pressure mistake in circulation line externally, and load the problem that causes chambers of the heart deformation and actual myocardial contraction and diastole process deformation gap larger by exterior mechanical, reflected really the deformation of chambers of the heart hopping process and correct circulating pressure relation.
Description of drawings
Fig. 1 is human heart (left ventricle) anatomical structure.
Fig. 2 is the utility model heart simulator (left ventricle) structural representation.
Fig. 3 is the utility model heart simulator (left ventricle) intermediateness.
Fig. 4 is the diastole change procedure of the utility model heart simulator (left ventricle).
Fig. 5 is the contraction change process of the utility model heart simulator (left ventricle).
In figure: the 1-cardiac muscle; The 2-chambers of the heart; The 3-myocardium; The 4-hollow cavity; 5-through hole (feed liquor/gas port); The 6-outer sheath; The 7-bicuspid valve; The 8-aortic valve.
Embodiment
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Fig. 1 is the anatomical structure of human heart, and human heart mainly 1 is made of cardiac muscle, and atrium sinistrum, left ventricle, atrium dextrum, right ventricle four chambeies are arranged, and separates by the interval between left atrium and between left and right ventricles, between atrium and ventricle, valve is arranged.But because the atrium is consistent with the driving deformation process of ventricle, therefore in accompanying drawing and explanation, all adopt left ventricle object as an illustration, can this be extrapolated to other three chambers.
The structure of the utility model heart simulator as shown in Figure 2, form at the hollow cavity (pressure chamber) 4 that on the basis of human heart, cardiac muscle 1 is split as by sealing between myocardium 3, outer sheath 6 and the myocardium 3 of inside and outer sheath 6, have on the wall of outer sheath 6 and pass into or the through hole 5 of sucking-off liquid (gas) body.Myocardium 3 and cardiac valves (bicuspid valve 7 and aortic valve 8) are made by the macromolecular material that meets human body respective organization mechanical property, are preferably the TPE material, shore hardness 25 ~ 50; Outer sheath 6 is made by the hard macromolecular material, is preferably polyurethane, shore hardness 70～90.Cardiac valves and myocardium 3 connected modes are bonding, and the position meets human anatomic structure (the 556 powerful bonding glue that bonding employing China letter tackifier (Shenzhen) company limited produces, the agent that is being situated between is 768); Outer sheath 6 is fixed together by bonding mode with the part of myocardium 3 except hollow cavity 4.Pass into or sucking liquid or gas in pressure chamber 4 by feed liquor/gas port, to change the pressure in pressure chamber, can realize contraction and the diastole of the chambers of the heart 2.
The anatomical shape of the chambers of the heart be between shrink and the intermediateness of diastole as shown in Figure 3, when this state changes to contracted state, the constant generation of myocardium thickness local deformation, when this state changes to the diastole attitude, the attenuation of myocardium thickness.
The diastole change procedure of heart simulator as shown in Figure 4.The simulator original state is chambers of the heart contraction state (Fig. 4 (a)), through feed liquor/gas port sucking liquid in the pressure chamber, causes pressure in pressure cavity to reduce, and bicuspid valve is opened thereupon, and liquid enters the chambers of the heart, and the chambers of the heart begins to expand.Expansion process is divided two stages, first stage, and myocardium thickness is constant, and its local deformation returns to state of nature (Fig. 4 (b)); Second stage, the attenuation gradually of myocardium thickness is until the chambers of the heart increases to diastole maximum rating (Fig. 4 (c)).
The contraction change process of heart simulator as shown in Figure 5.The simulator original state is chambers of the heart diastole state (Fig. 5 (a)), through feed liquor/gas port infusion fluid in the pressure chamber, causes pressure in pressure cavity to increase, and aortic valve is opened thereupon, and liquid is discharged from the chambers of the heart, and the chambers of the heart begins to shrink.Contraction process divides two stages, first stage, and myocardium thickness is thickening gradually, returns to state of nature (Fig. 5 (b)); Second stage, myocardium thickness is constant, local deformation, the chambers of the heart is reduced to and shrinks minimum state (Fig. 5 (c)).
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.
Claims (4)
1. the heart chamber simulator that drives of a hydraulic pressure or air pressure artificial-muscle is characterized in that: described simulator comprise outer sheath, myocardium, cardiac valves and be formed in outer sheath and myocardium between the hollow cavity that seals; Have through hole on the wall of described outer sheath, be used for liquid or gas inputing or outputing in hollow cavity.
2. heart chamber simulator according to claim 1, it is characterized in that: its material of described epitheca is the hard macromolecular material, described myocardium and valvular material are the macromolecular material that meets human body respective organization mechanical property.
3. heart chamber simulator according to claim 1 and 2, it is characterized in that: described epitheca material is polyurethane, shore hardness 70～90; Described myocardium and valvular material are the TPE material, shore hardness 25～50.
4. heart chamber simulator according to claim 1 is characterized in that: described cardiac valves is adhered on the myocardium upper surface, and described outer sheath and the myocardium part except hollow cavity is fixed together by bonding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659401 CN202996155U (en) | 2012-11-30 | 2012-11-30 | Heart chamber simulator driven by hydraulic or air-pressure artificial muscle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659401 CN202996155U (en) | 2012-11-30 | 2012-11-30 | Heart chamber simulator driven by hydraulic or air-pressure artificial muscle |
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| Publication Number | Publication Date |
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| CN202996155U true CN202996155U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220659401 Expired - Fee Related CN202996155U (en) | 2012-11-30 | 2012-11-30 | Heart chamber simulator driven by hydraulic or air-pressure artificial muscle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854544A (en) * | 2012-11-30 | 2014-06-11 | 中国科学院沈阳自动化研究所 | Heart chamber simulator driven by hydraulic or air-pressure artificial muscle |
| CN114288019A (en) * | 2021-10-23 | 2022-04-08 | 周文博 | Simulator, prosthetic heart valve, method for manufacturing prosthetic heart valve and arm, and prediction method |
-
2012
- 2012-11-30 CN CN 201220659401 patent/CN202996155U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854544A (en) * | 2012-11-30 | 2014-06-11 | 中国科学院沈阳自动化研究所 | Heart chamber simulator driven by hydraulic or air-pressure artificial muscle |
| CN103854544B (en) * | 2012-11-30 | 2016-04-13 | 中国科学院沈阳自动化研究所 | The heart chamber simulator that hydraulic pressure or air pressure artificial-muscle drive |
| CN114288019A (en) * | 2021-10-23 | 2022-04-08 | 周文博 | Simulator, prosthetic heart valve, method for manufacturing prosthetic heart valve and arm, and prediction method |
| CN114288019B (en) * | 2021-10-23 | 2023-12-12 | 周文博 | Simulator, chamber arm for chamber model, valve arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20171130 |