CN109966575A - A kind of single saccule counterpulsation formula left ventricular assist device - Google Patents
A kind of single saccule counterpulsation formula left ventricular assist device Download PDFInfo
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- CN109966575A CN109966575A CN201910368492.2A CN201910368492A CN109966575A CN 109966575 A CN109966575 A CN 109966575A CN 201910368492 A CN201910368492 A CN 201910368492A CN 109966575 A CN109966575 A CN 109966575A
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- China
- Prior art keywords
- micropump
- sacculus
- left ventricular
- counterpulsation
- assist device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002861 ventricular Effects 0.000 title claims abstract description 28
- 210000005077 saccule Anatomy 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 210000005240 left ventricle Anatomy 0.000 claims abstract description 9
- 239000008280 blood Substances 0.000 claims description 12
- 210000004369 blood Anatomy 0.000 claims description 12
- 230000035479 physiological effects, processes and functions Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 claims 1
- 210000002216 heart Anatomy 0.000 abstract description 7
- 238000002513 implantation Methods 0.000 abstract description 4
- 210000003462 vein Anatomy 0.000 abstract description 4
- 210000004556 brain Anatomy 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000004060 metabolic process Effects 0.000 abstract description 2
- 210000000056 organ Anatomy 0.000 abstract description 2
- 230000010412 perfusion Effects 0.000 abstract description 2
- 206010019280 Heart failures Diseases 0.000 description 4
- 210000000709 aorta Anatomy 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 210000003157 atrial septum Anatomy 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 210000003748 coronary sinus Anatomy 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002473 artificial blood Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000004 hemodynamic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000803 paradoxical effect Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000037921 secondary disease Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
- A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/04—General characteristics of the apparatus implanted
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/04—Heartbeat characteristics, e.g. ECG, blood pressure modulation
Abstract
It include sacculus, conduit, micropump 1, micropump 2, control system, EGC sensor and fluid source the present invention provides a kind of single saccule counterpulsation formula left ventricular assist device；Sacculus is placed in left ventricle, sacculus connecting tube one end, and the conduit other end is connected to micropump 1 and micropump 2, and micropump 1 and micropump 2 are connected to fluid source.A kind of single saccule counterpulsation formula left ventricular assist device of the present invention, it is simple with implantation, the characteristics of patient's resume speed is fast and cost economic, it can quickly substitute the left ventricular function of patient, the perfusion for facilitating the organs functions such as improvement brain, heart and tail vein, it is horizontal to improve human metabolism.
Description
Technical field
The invention belongs to medical instruments fields, more particularly, to a kind of single saccule counterpulsation formula left ventricular assist device.
Background technique
There are about 4,000,000 heart failure patients in the current 35-74 years old adult in China, for endstage cardiac insufficiency patient,
The clinical effectiveness of heart transplant is substantially better than simple drug control heart failure.But there is a serious shortage of while facing row to heart donor
The problem of different reaction, infection and other secondary diseases, and the development of left ventricular assist device, it is increasingly becoming the weight for solving serious heart failure
Want approach.
The main experienced three stages of the development of left ventricular assist device, the first generation is bionical beating pump, by pneumatically or electrically
Diaphragm blood pump is driven, pulsation blood flow is generated, is commonly used for transplanting preceding bridging therapy, but its volume is big, noise is big, appeal
High, the disadvantages of blood pump inner membrance is tearable and valve is easy to aging, patients ' life quality is seriously affected, it sometimes appear that fatal is concurrent
Disease.Second generation left ventricular assist device volume is smaller, and infection rate is lower, and noise is obviously reduced, and can significantly improve life
Quality.Third generation left ventricular assist device further reduces the volume of artificial blood pump, using magnetic levitation technology, has preferable
Hemodynamic characteristics can reduce bleeding and thrombus complication.But it is multiple to there is implantation in above-mentioned existing left ventricular assist device
Problem miscellaneous, cost is high and patient recovery times are long.
Summary of the invention
In view of this, the present invention is directed to propose a kind of single saccule counterpulsation formula left ventricular assist device, has implantation simply, patient
The characteristics of resume speed is fast and cost economic, can quickly substitute the left ventricular function of patient, help to improve brain, heart etc.
It is horizontal to improve human metabolism for the perfusion of organ function and tail vein.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of single saccule counterpulsation formula left ventricular assist device, including sacculus, conduit, micropump 1, micropump 2, control system,
EGC sensor and fluid source；Sacculus is placed in left ventricle, sacculus connecting tube one end, and the conduit other end is connected to micropump 1
And micropump 2, micropump 1 and micropump 2 are connected to fluid source.
Fluid is driven into sacculus by micropump 1 from fluid source, and micropump 2 returns fluid from sacculus to fluid source
It is interior；EGC sensor and the signal receiving end of control system connect, and EGC sensor acquires the Human Physiology telecommunications of human epidermal
Number；Control system controls micropump 1 and micropump 2 will be in fluid source according to the collected physiology signal of EGC sensor
Fluid extraction or be driven into sacculus.
Further, 1 signal output end of pump of control system is connect with 1 signal input part of pump of micropump 1.
Further, 2 signal input part of pump of 2 signal output end of the pump connection micropump 2 of control system.
Further, fluid source is gaseous fluid source or liquid fluid source.
Further, sacculus is blood compatibility material sacculus, and conduit is blood compatibility material conduit.
Compared with the existing technology, a kind of single saccule counterpulsation formula left ventricular assist device of the present invention, has the advantage that
A kind of single saccule counterpulsation formula left ventricular assist device of the present invention has the advantages that first, this single saccule counterpulsation formula is left
Heart auxiliary device can be implanted into through the apex of the heart, atrial septum, aorta petal or coronary sinus vein, have the characteristics that implantation is simple；The
Two, this single saccule counterpulsation formula left ventricular assist device has no mechanical damage to blood；Third, this single saccule counterpulsation formula left ventricular assist device
It is low using economic cost.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.
In the accompanying drawings:
Fig. 1 is a kind of single saccule counterpulsation formula left ventricular assist device schematic illustration of the present invention；
Fig. 2 is a kind of single saccule counterpulsation formula left ventricular assist device structural schematic diagram of the present invention；
Fig. 3 is a kind of single saccule counterpulsation formula left ventricular assist device explanatory diagram of the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, a kind of single saccule counterpulsation formula left ventricular assist device, including sacculus, conduit, micropump 1, micropump
2, control system, EGC sensor and fluid source；Sacculus is placed in left ventricle, sacculus connecting tube one end, the conduit other end
It is connected to micropump 1 and micropump 2, micropump 1 and micropump 2 are connected to fluid source.
Fluid is driven into sacculus by micropump 1 from fluid source, and micropump 2 returns fluid from sacculus to fluid source
It is interior；EGC sensor and the signal receiving end of control system connect, and EGC sensor acquires the Human Physiology telecommunications of human epidermal
Number；Control system controls micropump 1 and micropump 2 will be in fluid source according to the collected physiology signal of EGC sensor
Fluid extraction or be driven into sacculus.
As shown in Fig. 2, 1 signal output end of pump of control system is connect with 1 signal input part of pump of micropump 1.
As shown in Fig. 2, 2 signal input part of pump of 2 signal output end of the pump connection micropump 2 of control system.
As shown in Figure 1, fluid source is gaseous fluid source or liquid fluid source.
As shown in Figure 1, sacculus is blood compatibility material sacculus, conduit is blood compatibility material conduit.
The Human Physiology electric signal of EGC sensor acquisition human epidermal；Control system is collected according to EGC sensor
Fluid in fluid source is extracted out or is driven into sacculus by physiology signal, control micropump.
Fluid in fluid source can be carbon dioxide gas or physiological saline etc..EGC sensor is placed directly against human body table
At Pi Shang, such as hand pulse etc..
In the present embodiment, sacculus can be implanted to left ventricle through the apex of the heart, atrial septum, aorta petal or coronary sinus vein
In, as shown in Figure 1, sacculus functions as left ventricle, for squeezing into human vas blood from left ventricle, guarantee blood
Liquid stream is to whole body.EGC sensor is arranged on human epidermal, and at hand pulse, obtained electrocardiosignal is transferred to control system
System, control system output a control signal to micropump 1 or micropump 2, realize the full or emptying of sacculus, to assist realizing left
The function of ventricle.
In the present embodiment:
As shown in figure 3, processor module is STM32F103ZET6 processor.
As shown in figure 3, the ADC123_INx of the signal output end connection STM32F103ZET6 processor of EGC sensor is fixed
Adopted pin.
As shown in figure 3, power module 3.3V output end be separately connected STM32F103ZET6 processor VDD pin and
VDDA pin.
As shown in figure 3, the TIM2_CH2 of the PWM interface connection STM32F103ZET6 processor of micropump 1 defines pin.
As shown in figure 3, the TIM3_CH2 of the PWM interface connection STM32F103ZET6 processor of micropump 2 defines pin.
As shown in figure 3,1 import of micropump, by conduit communicated air bags, the outlet of micropump 2 passes through conduit communicated air bags.
As shown in figure 3, power module is YS-5D3312H type dual output power supply.
In the present embodiment, in ventricular diastole, STM32F103ZET6 processor receives EGC sensor and acquires signal, leads to
It crosses TIM2_CH2 and defines pin transmission pwm control signal to micropump 1,1 import of micropump at this time sucks fluid in air bag, through going out
Mouth is drained into fluid source, and air bag empties at this time, and blood flows into left ventricle；In paradoxical expansion, STM32F103ZET6 processor
Pin, which is defined, by TIM3_CH2 sends pwm control signal to micropump 2,2 import of micropump at this time sucks fluid in fluid source,
It is drained into air bag through outlet, keeps air bag full, the blood stream in left ventricle is entered in aorta, then flows to whole body everywhere.
The above is merely preferred embodiments of the present invention, it is not intended to limit the invention, all within the spirits and principles of the present invention,
Any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of single saccule counterpulsation formula left ventricular assist device, it is characterised in that: including sacculus, conduit, micropump 1, micropump 2,
Control system, EGC sensor and fluid source；The sacculus is placed in left ventricle, and the sacculus is connected to the tube at one end,
The conduit other end is connected to the micropump 1 and the micropump 2, the micropump 1 and the micropump 2 are connected to the stream
Body source；
Fluid is driven into the sacculus by the micropump 1 from the fluid source, and the micropump 2 is by fluid from the ball
It is returned in capsule in the fluid source；The EGC sensor is connect with the signal receiving end of the control system, the electrocardio
The Human Physiology electric signal of sensor acquisition human epidermal；The control system is according to the collected human body of the EGC sensor
Physiological signal controls the micropump 1 and the micropump 2 for the fluid in the fluid source and extracts or be driven into the sacculus out
It is interior.
2. a kind of single saccule counterpulsation formula left ventricular assist device according to claim 1, it is characterised in that: the control system
1 signal output end of pump connect with 1 signal input part of pump of the micropump 1.
3. a kind of single saccule counterpulsation formula left ventricular assist device according to claim 1, it is characterised in that: the control system
2 signal output end of pump connect 2 signal input part of pump of the micropump 2.
4. a kind of single saccule counterpulsation formula left ventricular assist device according to claim 1, it is characterised in that: the fluid source is
Gaseous fluid source or liquid fluid source.
5. a kind of single saccule counterpulsation formula left ventricular assist device according to claim 1, it is characterised in that: the sacculus is blood
Liquid phase capacitive material sacculus, the conduit are blood compatibility material conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368492.2A CN109966575A (en) | 2019-05-05 | 2019-05-05 | A kind of single saccule counterpulsation formula left ventricular assist device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910368492.2A CN109966575A (en) | 2019-05-05 | 2019-05-05 | A kind of single saccule counterpulsation formula left ventricular assist device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109966575A true CN109966575A (en) | 2019-07-05 |
Family
ID=67072808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910368492.2A Pending CN109966575A (en) | 2019-05-05 | 2019-05-05 | A kind of single saccule counterpulsation formula left ventricular assist device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109966575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110559497A (en) * | 2019-09-19 | 2019-12-13 | 厦门大学附属第一医院 | heart auxiliary support balloon system, manufacturing method thereof and heart auxiliary device |
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2019
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Cited By (2)
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