CN209471635U - Pulsatile cardiac model - Google Patents
Pulsatile cardiac model Download PDFInfo
- Publication number
- CN209471635U CN209471635U CN201820929696.XU CN201820929696U CN209471635U CN 209471635 U CN209471635 U CN 209471635U CN 201820929696 U CN201820929696 U CN 201820929696U CN 209471635 U CN209471635 U CN 209471635U
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- Prior art keywords
- water pump
- electric water
- cardiac
- display device
- simulation
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- 230000000747 cardiac effect Effects 0.000 title claims abstract description 63
- 230000000541 pulsatile effect Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000004088 simulation Methods 0.000 claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims abstract description 10
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000036772 blood pressure Effects 0.000 abstract description 4
- 238000012549 training Methods 0.000 abstract description 4
- 230000001575 pathological effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 7
- 230000007170 pathology Effects 0.000 description 6
- 230000010349 pulsation Effects 0.000 description 6
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007918 intramuscular administration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 239000012890 simulated body fluid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Instructional Devices (AREA)
- External Artificial Organs (AREA)
Abstract
The utility model discloses a kind of pulsatile cardiac models, including simulating cardiac module, pressure sensor, display device, control unit, electric water pump, human-computer interaction interface and liquid reserve tank, the liquid outlet of liquid reserve tank is connected with the inlet of simulation cardiac module, the liquid outlet of simulation cardiac module is connected with the refluxing opening of liquid reserve tank, electric water pump is installed in input duct, electric water pump is connected with control unit, pressure sensor is for detecting fluid pressure, and pressure sensor is connected with display device, the human-computer interaction interface is connected with control unit and display device.The utility model fidelity is high, the cardiac pulse state in the case of different pathological can be drawn up by pulsatile cardiac pattern die, and the various physiological signals such as can recorde and show heart blood pressure, electrocardio, heart sound, palmic rate, deformation quantity by display device, and it is shown by way of numerical value or chart, training of more convenient realization to operator.
Description
Technical field
The utility model relates to a kind of pulsatile cardiac models, belong to medical educational clothing arts.
Background technique
Learn relevant medical knowledge in order to facilitate medical student or intern, usual tutor needs to use human organ
Model is explained and is demonstrated, and for simulating division of cardiology trainee, tutor will often use simulation cardiac module, the prior art
In, the analogue simulation to human body simulation heart is always the research hotspot of medical instruments field, grasps and present the simulation heart in real time
Dirty real-time status is also extremely important.However, simulation cardiac module used at present is mostly static hard model, only
It is only capable of showing the construction of simulation heart, dynamic demonstration can not be carried out, and inconvenient student carries out observational learning and carries out other
The operation of instrument, and existing simulation cardiac module can only observe its static structure characteristic, it can not observational study dynamic life
Manage characteristic and its corresponding physiological parameter.The driving mechanism of blood pulse is imitated for driving simulation cardiac module according to operation
The desired effect of personnel does regular movement, is that anthropomorphic phantom's pseudocardia is beated and a sanguimotor key technology,
It is of great significance for the development of the teaching of simulation heart and medical research.
The characteristic of its high-pressure and low-pressure of the liquid of pulse transformation allows to simulate the effect of heart pump blood, existing offer
The device of pulse is usually by pressure pulse system (such as piston system), dynamical system (such as current stabilization pump), pipe line parts, electric-controlled
The driving member of the composition such as system processed, data acquisition test system, this mode mechanism for providing liquid pulse effect is more, volume
It is larger, and piston and cylinder body rub have the hidden danger of liquid leakage for a long time, and service life is bad, and this mode single pulse
Amount is fixed, and if necessary to change, needs to change the stroke of piston system, and route-variable piston mechanism is more complicated, and variable
Path increment it is little.
Therefore, in view of the deficiencies of the prior art, a kind of pulsatile cardiac model is designed, it appears meaningful.
Summary of the invention
In view of the deficiencies of the prior art, the utility model proposes a kind of pulsatile cardiac models, it is intended to solve the existing simulation heart
Dirty model can not achieve the pulsed analog blood flow effect of emulation, the non-intuitive problem of teaching efficiency.
The utility model realizes that the technical solution of above-mentioned purpose is a kind of pulsatile cardiac model, including simulation heart mould
Type, pressure sensor, display device, control unit, level-one electric water pump, second-stage electric water pump, human-computer interaction interface and liquid storage
Case, the liquid reserve tank are equipped with water outlet and refluxing opening, and the simulation cardiac module is equipped with inlet and liquid outlet, and liquid reserve tank goes out
The mouth of a river is connected with the inlet of simulation cardiac module by input duct, the liquid outlet and liquid reserve tank of the simulation cardiac module
Refluxing opening be connected by liquid outlet pipe, the level-one electric water pump and second-stage electric water pump are mounted in input duct,
And the level-one electric water pump is located between simulation cardiac module liquid outlet and second-stage electric water pump, the level-one electric water pump connects
It is connected to and is respectively connected with water pump driving device with second-stage electric water pump, and the water pump driving device is connected with control unit.Institute
It states pressure sensor to be installed on the input duct or liquid outlet pipe or simulation cardiac module, and pressure sensor and display fill
It sets and is connected, the human-computer interaction interface is connected with control unit and display device.
Further, above-mentioned pulsatile cardiac model, in which: further include temperature detecting element and heater, the temperature
Detecting element and heater are connected with control unit, and the temperature detecting element is for surveying the liquid in liquid reserve tank
Temperature, and by measured data feedback to control unit, the heater is for heating the liquid in liquid reserve tank.
Further, above-mentioned pulsatile cardiac model, in which: the input duct be equipped with flowmeter, the flowmeter and
Display device is connected, and shows fluid flow by display device.
Further, above-mentioned pulsatile cardiac model, in which: further include heart rate sensor and/or stress strain gauge
And/or EGC sensor and/or heart sound transducer, the heart rate sensor, stress strain gauge, EGC sensor, heart sound
Sensor is mounted on simulation cardiac module, and heart rate sensor, stress strain gauge, EGC sensor, heart sound sense
Device is connected with display device.
Further, above-mentioned pulsatile cardiac model, in which: the flowmeter, heart rate sensor, ess-strain sensing
Device, EGC sensor, heart sound transducer are connected with data processing module, and the data processing module is connected with display device
It connects.
The substantive distinguishing features outstanding and significant progress of the utility model are embodied in: (1) the utility model fidelity
Height, can draw up the cardiac pulse state in the case of different pathological by pulsatile cardiac pattern die, and can be with by display device
Recording and displaying heart blood pressure, electrocardio, heart sound, palmic rate, deformation quantity and its due to deformation generate stress, etc. various physiology
Signal, and shown by way of data processing module handles tracer signal and passes through numerical value or chart, it is more convenient
Training of the realization to operator；(2) the utility model is by using two-stage electric water pump control mode, respectively to fluid flow
Controlled with liquid pulsation, emulate it is more accurate, compared with the prior art in by piston system complete pulse action, realization
Volume with driving mechanism is greatly reduced on the basis of existing mechanism same effect, increases service life and reduces system
Cause this；(3) the utility model is additionally provided with temperature detecting element and heater, so that blood of human body temperature is simulated, so that the heart
The emulation of dirty pulsation is more true.
Detailed description of the invention
Fig. 1 is pulsatile cardiac model attachment structure schematic diagram；
Fig. 2 is destined to the Acceleration pulse figure of motor driver；
Fig. 3 is speed waveform figure of the second-stage electric water pump according to servomechanism control output；
Fig. 4 is the pressure waveform figure of second-stage electric water pump output.
In figure, the meaning of each appended drawing reference are as follows: 1- simulates cardiac module, 2- pressure sensor, 3- display device, 4- level-one
Electric water pump, 41- level-one water pump driving device, 5- second-stage electric water pump, 51- second level water pump driving device, 6- human-computer interaction circle
Face, 7- control unit, 8- temperature detecting element, 9- heater, 10- liquid reserve tank, 11- flowmeter, 12- data processing module.
Specific embodiment
Just attached drawing in conjunction with the embodiments below, is described in further detail specific embodiment of the present utility model, so that this
Utility model technical solution is more readily understood, grasps, to make relatively sharp define to the protection scope of the utility model.
As shown in Figure 1, the utility model pulsatile cardiac model includes simulation cardiac module 1, pressure sensor 2, display dress
3, control unit 7, level-one electric water pump 4, second-stage electric water pump 5, human-computer interaction interface 6 and liquid reserve tank 10 are set, liquid reserve tank 10 is set
There are water outlet and refluxing opening, simulation cardiac module 1 is equipped with inlet and liquid outlet, the water outlet and simulation heart mould of liquid reserve tank 10
The inlet of type 1 is connected by input duct, simulates the liquid outlet of cardiac module 1 and the refluxing opening of liquid reserve tank 10 by going out liquid
Pipeline is connected, to constitute a complete liquid flow circuits, the level-one electric water pump 4 and second-stage electric water pump 5 are equal
It is installed in input duct, and level-one electric water pump 4 is located between the liquid outlet and second-stage electric water pump 5 of simulation cardiac module 1,
Level-one electric water pump 4 is used to apply fluctuation pressure, level-one electric water to liquid for controlling fluid flow, second-stage electric water pump 5
Pump 4 is connected with level-one water pump driving device 41, and second-stage electric water pump is connected with second level water pump driving device 51, and level-one electric water
Pump drive 41 and second-stage electric water pump driving device 51 are connected with control unit 7.The sensor 2 is installed on described
In input duct or liquid outlet pipe or simulation cardiac module 1, and pressure sensor 2 is connected with display device 3.The man-machine friendship
Mutual interface 6 is connected with control unit 7 and display device 3.Operator assigns operational order by man-machine interface 6, and control is single
Member 7 controls each element according to operational order and executes corresponding movement, and display device 3 is for showing the corresponding data of element, just
Data are intuitively understood in operator.
Preferably, flowmeter 11 is additionally provided in the input duct, flowmeter 11 is connected with display device 3, by aobvious
Showing device 3 shows fluid flow.
In addition, trainee learns heart pathology knowledge for convenience, cardiac module 1 is simulated other than pressure sensor 2
It further include the one or more of heart rate sensor, stress strain gauge, EGC sensor, heart sound transducer, wherein pressure passes
Sensor is used to detect the pressure value in cardiac module, and heart rate sensor is used to record the number and frequency of simulation cardiac module 1
Rate, what the deformation quantity of simulation cardiac module 1 and deformation generated when stress strain gauge is used to measure heart contraction, expansion answers
Power, EGC sensor are used to the electrocardiosignal of acquisition and recording simulation cardiac module 1, and heart sound transducer is used to acquisition and recording and simulates the heart
The cardiechema signals of dirty model 1, above-mentioned each sensor are connected with display device 3.Preferably, above-mentioned each sensor is respectively mounted
In the intramuscular of simulation cardiac module 1, heart overall appearance is not influenced, the physiological parameter measured is more true and reliable, Er Qieke
To measure record heart blood pressure, electrocardio, heart sound, palmic rate, deformation quantity and its various physiology such as stress generated due to deformation
Signal, and shown by way of data processing module handles tracer signal and passes through numerical value or chart, and by arteries and veins
Dynamic pump realizes the bouncing effect of heart, therefore can simulate the heart operating condition under different conditions by adjusting jerk pump, more just
Just training of the realization to operator.
Due to needing data to be shown numerous, above-mentioned pressure sensor 2, heart rate sensor, stress strain gauge, electrocardio
Sensor, heart sound transducer and flowmeter 11 are connected with data processing module 12, the data processing module 12 and display
Device is connected.
In addition, being additionally provided with temperature detecting element 8 and heater 9, institute to simulate realistically out the effect of cardiac pulse
It states temperature detecting element 8 and heater 9 is connected with control unit 7, the temperature detecting element 8 is used for in liquid reserve tank 10
Liquid carries out thermometric, and feeds back to control unit, and the heater 9 is for heating the liquid in liquid reserve tank 10.Control
Unit 7 adds the liquid in liquid reserve tank 10 by program controlled heater device 9 and temperature detecting element 8, control heater 9
Fluid temperature in liquid reserve tank 10 is fed back to control unit 7 to the liquid in liquid reserve tank 10 by temperature detecting element 8 by heat,
Pid algorithm specifically can be used, to guarantee that the fluid temperature in liquid reserve tank 10 is stablized in 36.5 ~ 37.5 constant temperature, to simulate
Blood of human body temperature out, so that more true by pulsatile cardiac model emulation.
Described control unit 7 can be band analog output function or PWM(Pulse Width Modulation pulse is wide
Degree modulation) output function MCU(Micro Controller Unit micro-control unit), be also possible to PLC(programmable logic
Controller).The level-one electric water pump 4 and second-stage electric water pump 5 can be diaphragm pump, impeller pump, gear pump, peristaltic pump, leaf
One kind of piece pump or centrifugal pump, by the pressure waveform curve for selecting the different available different accuracies of water pump.
The ripple control method of the utility model is as follows: operator is by 6 adjusting parameter of human-computer interaction interface to set mould
The fluctuation pressure and frequency of pseudocardia model 1, control unit 7 export corresponding control signal, control according to the data of interactive interface
Signal processed includes that frequency setting is set with pressure, and frequency setting passes through the period for changing control unit output signal, control unit 7
The stable operation revolving speed of level-one electric water pump 4 is controlled, to determine pressure in the output size and pipe-line system of flow most
Low value.Control unit 7 is converted into corresponding control voltage by that will control signal, changes the output power of second-stage electric water pump 5
And the variation of revolving speed, so that periodic pulsation effect is generated, thus simulated body fluid pulsation effect, and pass through display device 3
Display waveform figure.
Specifically, it is 1 ~ 15L/min that described control unit 7, which controls fluid flow by level-one electric water pump 4, to obtain
One flow steady and with certain pressure, plays the role of pressurization.Control unit 7 passes through control second-stage electric water pump driving
Device 51 exports the one or more of basic square wave, T-wave, triangular wave, sine wave or waveform customization, to simulate not
Same pulse state.
Here case study on implementation description is made of gear pump, gear pump pump output flow is fixed and invariable, and simulates heart mould
Type 1 can be considered pipeline model, and for pipeline model, output flow is approximate with output pressure proportional.Pass through program meter
It calculates these values and then sends revolving speed control command to servomechanism to realize waveform, change operating parameter: such as the speed of service, plus-minus
Fast, high low speed duration etc., the approach of realization has: input waveform variable and selection wave function formula.
For example, control unit 7 inputs to electricity as shown in Fig. 2, gear pump controls output revolving speed according to motor driver 51
The acceleration wave shape function of machine actuating device 51 be v=akt+b(wherein a be gear pump acceleration, k, b be constant, t be accelerate
Time), operator sets the acceleration-deceleration of waveform by changing variable a.As shown in figure 3, and gear pump often transfers outflow
Fixed, so pump output Q=vt, pump output is directly proportional to speed, and pump output is also directly proportional to manifold pressure, so output
Pressure P wavy curve is as shown in figure 4, can determine that gear pump is defeated by adjusting the size of acceleration and the initial velocity of gear pump
The variation of pressure waveform curve out.By the different variables of input, the pulse state of different simulation cardiac modules 1 can be obtained,
And different heart pathologies corresponds to different cardiac pulse states, therefore, by setting different variables, can simulate each
The different heart pathologies of kind.
The utility model application method is as follows: (1) operator selects different heart pathologies by human-computer interaction interface 3, (2)
It is selected according to input, control unit control level-one water pump and second level water pump make corresponding movement, so that at simulation cardiac module 1
In pulse state, (3) show the data of each sensor under the pulse state by display device, so that practitioner be allowed to know
Under this kind of pathology, the data of specific each sensor detected.
By above description as can be seen that simulation cardiac module described in the utility model, fidelity is high, pulsation can be passed through
Cardiac module 1 simulates the state of cardiac pulse, and it is each to simulate that operator can set different parameters according to actual needs
Cardiac pulse state under kind of heart pathology, and by display device 3 can recorde and show heart blood pressure, electrocardio, heart sound,
Palmic rate, deformation quantity and its due to deformation generate stress, etc. various physiological signals, and by data processing module processing note
Record signal is simultaneously shown, training of more convenient realization to operator by way of numerical value or chart；Also, this reality
Fluid flow and liquid pulsation are controlled respectively by using two-stage electric water pump control mode with novel, emulation is more
Accurately, compared with the prior art in by piston system complete pulse action, realize and existing mechanism same effect on the basis of
The volume for greatly reducing driving mechanism, increases service life and reduces manufacturing cost；In addition, the utility model is also set
There are temperature detecting element 8 and heater 9, so that blood of human body temperature is simulated, so that the emulation of cardiac pulse is more true.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (5)
1. a kind of pulsatile cardiac model, it is characterised in that: single including simulation cardiac module, pressure sensor, display device, control
Member, level-one electric water pump, second-stage electric water pump, human-computer interaction interface and liquid reserve tank, the liquid reserve tank are equipped with water outlet and reflux
Mouthful, the simulation cardiac module is equipped with inlet and liquid outlet, and the water outlet of liquid reserve tank and the inlet of simulation cardiac module are logical
Input duct to be crossed to be connected, the liquid outlet of the simulation cardiac module is connected with the refluxing opening of liquid reserve tank by liquid outlet pipe,
The level-one electric water pump and second-stage electric water pump are mounted in input duct, and the level-one electric water pump is located at the simulation heart
Between dirty model liquid outlet and second-stage electric water pump, the level-one electric water pump, which is connected with, is respectively connected with water with second-stage electric water pump
Pump drive, and the water pump driving device is connected with control unit, the pressure sensor is installed on the inlet tube
In road or liquid outlet pipe or simulation cardiac module, and pressure sensor is connected with display device, the human-computer interaction interface and
Control unit and display device are connected.
2. pulsatile cardiac model according to claim 1, it is characterised in that: further include temperature detecting element and heating
Device, the temperature detecting element and heater are connected with control unit, and the temperature detecting element is used for in liquid reserve tank
Liquid carries out thermometric, and by measured data feedback to control unit, the heater be used for the liquid in liquid reserve tank into
Row heating.
3. pulsatile cardiac model according to claim 1, it is characterised in that: the input duct is equipped with flowmeter, institute
It states flowmeter to be connected with display device, fluid flow is shown by display device.
4. pulsatile cardiac model according to claim 3, it is characterised in that: further include that heart rate sensor and/or stress are answered
Become sensor and/or EGC sensor and/or heart sound transducer, the heart rate sensor, stress strain gauge, electrocardio sensing
Device, heart sound transducer are mounted on simulation cardiac module, and heart rate sensor, stress strain gauge, EGC sensor, the heart
Sound sensor is connected with display device.
5. pulsatile cardiac model according to claim 4, it is characterised in that: the flowmeter, heart rate sensor, stress are answered
Become sensor, EGC sensor, heart sound transducer to be connected with data processing module, the data processing module and display fill
It sets and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929696.XU CN209471635U (en) | 2018-06-15 | 2018-06-15 | Pulsatile cardiac model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820929696.XU CN209471635U (en) | 2018-06-15 | 2018-06-15 | Pulsatile cardiac model |
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| Publication Number | Publication Date |
|---|---|
| CN209471635U true CN209471635U (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820929696.XU Expired - Fee Related CN209471635U (en) | 2018-06-15 | 2018-06-15 | Pulsatile cardiac model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682255A (en) * | 2018-06-15 | 2018-10-19 | 同济大学 | Pulsatile cardiac model and its ripple control method |
-
2018
- 2018-06-15 CN CN201820929696.XU patent/CN209471635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682255A (en) * | 2018-06-15 | 2018-10-19 | 同济大学 | Pulsatile cardiac model and its ripple control method |
| CN108682255B (en) * | 2018-06-15 | 2024-04-26 | 同济大学 | Pulsation heart model and pulsation control method thereof |
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