CN207306753U - Ventricle simulator and ventricle test device - Google Patents
Ventricle simulator and ventricle test device Download PDFInfo
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- CN207306753U CN207306753U CN201720147138.3U CN201720147138U CN207306753U CN 207306753 U CN207306753 U CN 207306753U CN 201720147138 U CN201720147138 U CN 201720147138U CN 207306753 U CN207306753 U CN 207306753U
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Abstract
The utility model discloses ventricle simulator and ventricle test device.The ventricle simulator, including：Wholeheartedly chamber enclosure, inside have a cavity；With a flexible sheet, to simulate ventricular diastole or contraction by elastic deformation, the inside of the ventricle shell is arranged at so that the cavity is separated into disconnected two chamber.The ventricle simulator of the utility model, ventricular diastole or contraction are simulated by its elastically deformable using flexible sheet, piston simulation ventricle is avoided to shrink and diastole mechanism difference problem with natural myocardium of ventricle, and piston simulation ventricle negative pressure problem, and avoid liquid capsule simulation ventricular filling amount and liquid capsule simulation ventricle win output can not matching problem, so that the mechanism of simulation and natural ventricle are more closely, ensure that the accuracy of simulation.In addition, the assembling with external component is also more simple.The ventricle test device of the utility model draws simulation ventricular pressure volume curve ring easy to ventricular systole and the measurement of diastole simulation ventricular volume.
Description
Technical field
The technical field of circulatory system equipment is the utility model is related to, in particular to ventricle simulator and ventricle
Test device.
Background technology
The in-vitro simulated circulatory system has the function of the device for simulating blood circulation of human body, aids in filling available for artificial ventricle
Put, the test and evaluation of artificial blood vessel and artificial valve.Simulation ventricle is the nucleus module of simulation circulating system, it can be simulated certainly
So physiological parameter such as the heart rate of ventricle, stroke volume, ventricular pressure, heart output, systole phase diastolic ratio.Ventricle is simulated by outside
Dynamical element drives, the contraction and diastole of property performance period, forms external streams and circulates.
The simulation ventricle in the simulation circulating system of domestic application mainly has two kinds at present, and one kind is piston simulation ventricle,
Another kind is liquid capsule simulation ventricle [Chinese invention 200610116448.5].Piston simulates ventricle such as Chinese patent
CN105261274A, is specially：For the piston type ventricle simulator of the in-vitro simulated circulatory system, including ventricle, piston, driving
Mechanism, the lower end of ventricle are provided with inlet and liquid outlet, piston and core indoor wall clearance fit, and piston connects with driving mechanism
Connect, driving mechanism driving piston moves along a straight line downwards.Weighing apparatus power spring is additionally provided with, weighing apparatus power spring passes through connector and driving mechanism
Connection.The power spring that weighs is magnetic spring.Driving mechanism is linear motor, and the mover of linear motor is connected with piston.Driving mechanism
For ball screw motor, the ball screw of ball screw motor is connected with piston.Mover is connected with piston thread.Liquid capsule simulates the heart
Room such as Chinese patent CN101147706A, is specially：Available for intervention valve and the dress of other artificial performance in vitro tests
Put, include the interface of connection dynamical system, temperature varying system and resistance system, be provided with the oscillometer and its that can produce Pulsating Flow
It is connected can built-in valve one section of blood vessel, blood vessel outer cladding liquid capsule.Oscillometer connects one section of band left ventricular outflow tract view, aorta petal
The sustainer of ring, left and right animal coronarius or human body.By connecting artificial blood vessel or sustainer with annulus, artificial valve
Film is sewn in blood vessel near-end or annulus.The blood vessel that oscillometer is connected, outside are wrapped with liquid capsule again, in the blood vessel near-end of connection and remote
End is equipped with the interface that can connect pressure monitoring.
Above in the prior art, piston simulation ventricle drives reciprocating motion of the pistons by motor driving piston rod, realizes simulation
The contraction and diastole of ventricle, its major defect can not simulate the passive full of ventricle, cause diastole negative pressure, stiff piston ventricle
Water-hammer effects are had, cause the burr of ventricle corrugating；Liquid capsule simulation ventricle mainly forms simulation by elastic material
Ventricle, its myocardial contraction to natural heart has preferable simulation effect with diastole, but liquid capsule simulates the systole phase liquid of ventricle
Stream filling volume is won output with the simulation ventricle liquid stream of diastole and can not be matched completely, while liquid capsule simulation ventricle connects with external module
Inconvenience is connect, difficulty is caused to actual use.
Utility model content
In view of this, on the one hand the purpose of the utility model embodiment is to provide a kind of ventricle simulator, the ventricle
Simulator can accurately simulate nature ventricle, as more simple with the assembling of external component when testing.
A kind of ventricle simulator, including：
Wholeheartedly chamber enclosure, inside have a cavity；
With a flexible sheet, to simulate ventricular diastole or contraction by elastic deformation, the ventricle shell is arranged at
Inside the cavity is separated into disconnected two chamber.
Further, the inner surface of the ventricle shell is equipped with the step surface installed for the flexible sheet.
Further, it is provided with an opening at the top of the ventricle shell.
Further, the bottom of the ventricle shell offers 5 through holes.
Further, one is further included the flexible sheet to be installed on to the installed part of the ventricle enclosure.
Further, the installed part is the pressing plate of rigidity.
Further, flexible sheet is installed on the ventricle shell by the installed part by spiro connecting piece.
Further, the pressing plate is offered with the through hole installed for the spiro connecting piece.
Further aspect is that providing a kind of ventricle test device, which tests the purpose of the utility model embodiment
More accurate, assembling is more simple.
A kind of ventricle test device, to test the physiological parameter of the diastole of ventricle or contraction, including：
One ventricle simulator described above；
One level monitoring part, for monitoring the liquid level of the indoor liquid of a simulator wherein chamber；
One extrusion, to apply extruding force to the flexible sheet；
One drive component, to drive the extrusion movement to produce the extruding force.
Further, the driving component for can straight reciprocating motion drive component.
The ventricle simulator of the utility model, using flexible sheet by its elastically deformable come simulate ventricular diastole or
Shrink, avoid piston simulation ventricle and natural myocardium of ventricle contraction and diastole mechanism difference problem, and piston simulation ventricle is born
Stress problems, and avoid liquid capsule simulation ventricular filling amount and liquid capsule simulation ventricle win output can not matching problem so that mould
The mechanism of plan is with natural ventricle more closely, ensure that the accuracy of simulation.In addition, the assembling with external component is also more simple
It is single.
To enable the above-mentioned purpose of the utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the structure diagram for the ventricle simulator that the utility model embodiment is provided.
Fig. 2 shows the structure diagram for the ventricle test device that the utility model embodiment is provided.
Main element symbol description：
10-ventricle simulator；110-ventricle shell；111-chamber；112-through hole；12-bullet
Property diaphragm；13-installed part；14-spiro connecting piece；100-ventricle test device；20-extrusion；
30-drive component；40-level monitoring part；50-liquid.
Embodiment
For the ease of understanding the utility model, ventricle simulator is more fully retouched below with reference to relevant drawings
State.The preferred embodiment of ventricle simulator is given in attached drawing.But ventricle simulator can be in many different forms
To realize, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make to simulate ventricle to fill
The disclosure put more thorough and comprehensive.
The term used in the various embodiments of the disclosure is only used for the purpose of description specific embodiment and not anticipates
In the various embodiments of the limitation disclosure.As used herein, singulative is intended to also include plural form, unless context is clear
Chu it is indicated otherwise.Unless otherwise defined, otherwise all terms (including technical term and scientific terminology) used herein have
There is the implication identical with the various normally understood implications of embodiment one skilled in the art of the disclosure.The term
(term such as limited in the dictionary generally used) is to be interpreted as having and situational meaning in the related technical field
Identical implication and the implication of Utopian implication or overly formal will be interpreted as having, unless in the various of the disclosure
It is clearly defined in embodiment.
In the description of the utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplify description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
Combined in an appropriate manner in any one or more embodiments or example.
In the description of the utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be the company inside mechanical connection or electrical connection or two elements
It is logical, it can be directly connected, can also be indirectly connected by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, presented above be not intended to limit the suitable of the element
Sequence and/or importance.The purpose presented above for being only used for differentiating an element and other elements.For example, the first user fills
Put and indicate different user device with second user device, although the two is all user apparatus.For example, each of the disclosure is not being departed from
In the case of the scope of kind embodiment, the first element is referred to alternatively as the second element, and similarly, the second element is also referred to as first
Element.
It should be noted that：, can be by the first composition member if a constituent element ' attach ' to another constituent element by description
Part is directly connected to the second constituent element, and " connection " the 3rd can be formed between the first constituent element and the second constituent element
Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that be in the first constituent element
And second be not present the 3rd constituent element between constituent element.
In addition, indefinite article " one kind " before key element of the present invention or component and "one" quantitative requirement to key element or component
(i.e. occurrence number) unrestriction.Therefore "one" or " one kind " should be read as including one or at least one, and odd number
The key element or component of form also include plural form, unless the obvious purport of the quantity refers to singulative.
Please refer to Fig.1.The ventricle simulator 10 of the utility model embodiment includes：
Wholeheartedly chamber enclosure 110, inside have a cavity；
With a flexible sheet 12, to simulate ventricular diastole or contraction by elastic deformation, the ventricle of shell is arranged at
Shell 110 by cavity to be separated into disconnected two chamber 111.
In above-described embodiment, ventricular diastole or contraction are simulated by its elastically deformable using flexible sheet 12, avoided
Piston simulation ventricle and natural myocardium of ventricle shrink with diastole mechanism difference problem, and piston simulation ventricle negative pressure problem,
And avoid liquid capsule simulation ventricular filling amount and liquid capsule simulation ventricle win output can not matching problem so that the mechanism of simulation with
Natural ventricle is more closely, ensure that the accuracy of simulation.
Above-mentioned ventricle shell 110 can be cylindrical shape, its internal cavity is surrounded by side wall and bottom wall.Open at its top
Mouthful, bottom wall closing.Two chambers 111 that cavity is separated to form by flexible sheet 12 are respectively to be enclosed by side wall, flexible sheet 12
Into being surrounded by side wall, bottom wall, flexible sheet 12, respectively positioned at top and bottom.111 bore of chamber positioned at top is more than
Positioned at the bore of the chamber 111 of bottom.For chamber 111 positioned at top to house liquid 50, the liquid 50 detection is located at bottom
The change of cavity volume.
Flexible sheet 12 refers to elastically-deformable diaphragm can occur.The elastic deformation of flexible sheet 12, enables to outside
(such as extruding force) makes under boundary's active force, and flexible sheet 12 deforms, to simulate the state of ventricular contraction；After external force is removed, bullet
Property diaphragm 12 restPose, at this time simulate ventricular diastole state.By varying the thickness and value of elastic of flexible sheet 12,
Realize the change of compliance value, realize the simulation of nature heart difference physiological status, including normal healthy state and heart failure state
Cardiac function is simulated.
Flexible sheet 12 can be used made by the material with high elastic modulus, can both use the metal of such as aluminium alloy
Material, can also use rubber, such as ethylene propylene diene rubber rubber, nitrile rubber, or use such as PP plastic cement.
Flexible sheet 12 can be it is discoid, such as its can be middle part slightly after, edge is thin.
Set-up mode of the above-mentioned flexible sheet 12 in ventricle shell 110, it is to be understood that the edge part of flexible sheet 12
It is connected to the inner surface of ventricle shell 110.Flexible sheet 12 is set in 110 inner surface of ventricle shell in order to preferably realize
Put, there are a variety of implementations.In the first implementation, the inner surface of ventricle shell 110 is equipped with to pacify for flexible sheet 12
The step surface of dress.Step surface can be level-one step surface.In the embodiment of this step surface, the bore of bottom chamber 111 is small
In the bore of top chamber 111.
In second of implementation, the inner surface of ventricle shell 110 is equipped with flange.Flange refers to protrude from ventricle shell
The structure of 110 inner surface.Flange is annular flange.Flange peripheral is arranged in the inner surface of ventricle shell 110, here,
Axial direction of the face perpendicular to ventricle shell 110 where " circumferential direction " refers to flange.In this kind of implementation, the mouth of bottom chamber 111
Footpath can be same as the bore of top chamber 111.
In the third implementation, groove is set in the inner surface of ventricle shell 110, the groove is to accommodating flexible sheet
12 edge.Groove can use interference fit with flexible sheet 12, to reach close installation.Groove can be annular bar-shaped trough, axis
To the inner surface for being arranged in ventricle shell 110.
The bottom of ventricle shell 110 offers through hole 112, such as 5, is respectively liquid flow inlet installation threaded hole, liquid stream
Outlet installation threaded hole, monitoring device installation threaded hole, test equipment mounting hole, spilled water hole.Here, it is necessary to explanation, liquid
Inflow entrance installation threaded hole is for installing the through hole 112 passed through for spiro connecting piece 14 used in liquid flow inlet (such as pipe fitting).Liquid stream
Outlet installation threaded hole is used for installing the through hole 112 passed through for spiro connecting piece 14 used in fluid outlet (such as pipe fitting).Monitoring device
It is for installing the through hole 112 passed through for spiro connecting piece 14 used in monitoring device to install threaded hole.Test equipment mounting hole is to use
Come the through hole 112 for supplying test equipment to pass through；Spilled water hole is for the hole for unnecessary liquid 50 is discharged.
In this example, one is further included flexible sheet 12 to be installed on to the installed part 13 inside ventricle shell 110.The installation
The effect of part 13 is fixed except installing support to flexible sheet 12, can also be played a protective role to flexible sheet 12.
The way of realization of installed part 13 can be with certain rigid pressing plate.Here, rigid purpose is to ensure bullet
Ventricle shell 110 is divided into disconnected two chamber by property diaphragm 12.Pressing plate can be plectane.
Installed part 13 by flexible sheet 12 be installed on the ventricle shell 110 implementation have it is a variety of.Can use can
The mode of dismounting, such as fastener, clamping or sliding.Fastener connection can be spiro connecting piece 14 or clamping piece.Clamping refers to pacifying
Piece installing 13 sets block tongue, is arranged at the matched card slot of the block tongue in the inner surface of ventricle shell 110, block tongue and card slot can use
Known all forms.It is sliding to refer to set draw runner in installed part 13, it is arranged at the block tongue phase in the inner surface of ventricle shell 110
The sliding slot of cooperation, block tongue and card slot can use known all forms.
For flexible sheet 12 is installed on the implementation of ventricle shell 110 by installed part 13 by spiro connecting piece 14,
Pressing plate is offered with the through hole installed for spiro connecting piece 14.It can set as flexible sheet 12 and lead to for what spiro connecting piece 14 passed through
Hole, can also be not provided with the through hole passed through for spiro connecting piece 14 certainly.In the case of the through hole for being not provided with passing through for spiro connecting piece 14, bullet
Property diaphragm 12 be less than the size of installed part 13, flexible sheet 12 can be pressed together on installed part 13 and ventricle shell by such installed part 13
Between 110 inner surface.
Refer to Fig. 2.The ventricle test device 100 of the present embodiment, to test the physiology of the diastole of ventricle or contraction ginseng
Number, including：
One ventricle simulator 10 described above；
One extrusion 20, to apply extruding force to flexible sheet 12；
One drive component 30, to drive extrusion 20 to move to produce extruding force.
It is understood that above-mentioned physiological parameter includes but not limited to heart rate, stroke volume, ventricular pressure, heart output, contraction
Phase diastolic ratio etc..
Above-mentioned drive component 30 can be for can straight reciprocating motion drive component 30.In this way, drive component 30 drives
Extrusion 20 pumps.When 20 downward process of extrusion is moved, extrusion 20 is pressed down against flexible sheet 12, ventricle mould
Intend the inside of device 10 and produce pressure, realize the systole phase simulation of ventricle simulator 10；During 12 upward drawback movement of flexible sheet,
Extrusion 20 is separated with flexible sheet 12, and flexible sheet 12 restPoses, and realizes that flexible sheet 12 simulates ventricular diastole
Simulation.
Here, can the drive component 30 of straight reciprocating motion can include cylinder mechanism, motor-driven cylinder mechanism, feed screw nut's machine
Structure etc..
For extrusion 20 using the pressure head of elastic construction, pressure head can be the analogous shape of conehead.
It should be noted that the liquid level of 50 solution of liquid wherein built in a chamber 111 of ventricle simulator 10 with
The up and down motion of flexible sheet 12 and change, level monitoring part 40 can calculate elasticity by changing to the liquid level of liquid 50
Diaphragm 12 simulates the variable quantity of ventricular systole and diastolic volume.
You need to add is that the correlation computations process for the physiological parameter that this ventricle test device 100 is tested is as follows：
The compliance index of natural ventricle：C=Δ P/ Δ V, the i.e. minimum pressure difference of ventricular end-diastolic pressure and ventricular diastole
Value and the ratio of ventricular diastole filling volume.
Flexible sheet 12 simulates the time T of ventricular diastole：Flexible sheet 12 simulates ventricular diastole filling volume V and elasticity
Diaphragm 12 simulates the ratio of ventricular diastole filling velocity μ.
The calculation formula for simulating ventricular diastole filling velocity μ is as follows：
In above-mentioned calculating, Pa flexible sheets 12 simulate the vein pond pressure of ventricle leading portion；
Ps systems flexible sheet 12 simulates the pressure inside ventricle；
L systems flexible sheet 12 simulates ventricle and the length of vein pond connecting pipe；
D systems pipe diameter；
V systems flexible sheet 12 simulates ventricular diastole filling volume；
50 flow velocity of μ a systems liquid；
μ s systems flexible sheet 12 simulates ventricle liquid stream back-flow velocity；
50 density of ρ systems liquid；
G systems gravity constant.
The ventricle simulator 10 of the utility model has the advantage that：
1st, ventricle simulator 10 overcomes piston simulation ventricular diastole simulation ventricle negative pressure problem, while elastic membrane
Piece 12 simulates ventricle and the mechanism of natural myocardium of ventricle elastic shrinkage and diastole is more like.
2nd, ventricle simulator 10 realizes simulation ventricular diastole liquid stream filling volume and systole phase liquid stream pollex amount phase
With
3rd, ventricle simulator 10 and external component assembly and connection are simple and convenient, it can be achieved that modular assembly and disassembly
4th, the systolic volume of ventricle simulator 10 and diastolic volume can monitor in real time, and monitoring method is simple, into
This is low, easy to implement.
It is above-mentioned not address part, suitable for the prior art.
Although more above used the term for representing structure, such as " ventricle shell ", " flexible sheet " etc., do not arrange
Except the possibility using other terms.The use of these items is only for more easily describe and explain the sheet of the utility model
Matter；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be described with power
Subject to the protection domain that profit requires.
Claims (10)
- A kind of 1. ventricle simulator, it is characterised in that including：Wholeheartedly chamber enclosure, inside have a cavity；With a flexible sheet, to simulate ventricular diastole or contraction by elastic deformation, the interior of the ventricle shell is arranged at Portion by the cavity to be separated into disconnected two chamber.
- 2. ventricle simulator according to claim 1, it is characterised in that the inner surface of the ventricle shell be equipped with to For the step surface of flexible sheet installation.
- 3. ventricle simulator according to claim 1, it is characterised in that be provided with one at the top of the ventricle shell and open Mouthful.
- 4. ventricle simulator according to claim 1, it is characterised in that the bottom of the ventricle shell offers 5 Through hole.
- 5. ventricle simulator according to claim 1, it is characterised in that further include one flexible sheet to be pacified Installed part loaded on the ventricle enclosure.
- 6. ventricle simulator according to claim 5, it is characterised in that the installed part is the pressing plate of rigidity.
- 7. ventricle simulator according to claim 6, it is characterised in that the installed part is by spiro connecting piece by elastic membrane Piece is installed on the ventricle shell.
- 8. ventricle simulator according to claim 7, it is characterised in that the pressing plate is offered to be spirally connected with for described The through hole of part installation.
- A kind of 9. ventricle test device, to test the physiological parameter of the diastole of ventricle or contraction, it is characterised in that including：One ventricle simulator as claimed in claim 1；One level monitoring part, for monitoring the liquid level of the indoor liquid of a simulator wherein chamber；One extrusion, to apply extruding force to the flexible sheet；One drive component, to drive the extrusion movement to produce the extruding force.
- 10. ventricle test device according to claim 9, it is characterised in that the driving component is can linear reciprocation fortune Dynamic drive component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147138.3U CN207306753U (en) | 2017-02-17 | 2017-02-17 | Ventricle simulator and ventricle test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147138.3U CN207306753U (en) | 2017-02-17 | 2017-02-17 | Ventricle simulator and ventricle test device |
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| Publication Number | Publication Date |
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| CN207306753U true CN207306753U (en) | 2018-05-04 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190820 Address after: 215163 Building 311-312, No. 8 Jinfeng Road, Science and Technology City, Suzhou High-tech Zone, Jiangsu Province Patentee after: SUZHOU XINQING MEDICAL TECHNOLOGY Co.,Ltd. Address before: 215000 No. 178 Ganjiang East Road, Suzhou City, Jiangsu Province Patentee before: Soochow University |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 801, 802, 803 and 804, Building 7, No. 188 Fuchunjiang Road, High-tech Zone, Suzhou, Jiangsu, 215000 Patentee after: Xinqing Medical (Suzhou) Co.,Ltd. Address before: 215163 311-312, building 2, No.8 Jinfeng Road, science and Technology City, high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU XINQING MEDICAL TECHNOLOGY Co.,Ltd. |