CN109939282A - A kind of percutaneous Left heart assistanee system - Google Patents
A kind of percutaneous Left heart assistanee system Download PDFInfo
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- CN109939282A CN109939282A CN201910330179.XA CN201910330179A CN109939282A CN 109939282 A CN109939282 A CN 109939282A CN 201910330179 A CN201910330179 A CN 201910330179A CN 109939282 A CN109939282 A CN 109939282A
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Abstract
The invention discloses a kind of percutaneous Left heart assistanee systems, are related to field of medical technology, its key points of the technical solution are that: the master controller including two-chamber blood pump and for controlling the operation of two-chamber blood pump；Master controller is connected with the electrocardioscanner for monitoring heart electrocardiosignal；Two-chamber blood pump includes flowing into chamber, the outflow chamber connecting with inflow chamber and blood pump dynamical system；It flows into chamber and is connected with blood introducing pipe, blood introduces the end merging atrium sinistrum managed far from two-chamber blood pump；Outflow chamber is connected with blood effuser, and end of the effuser far from two-chamber blood pump is placed in aorta by one or both sides femoral artery；It flows out and is equipped with unidirectional mechanical valve between chamber and blood effuser.With the haemodynamics that can stablize patient according to the electrocardiosignal of patients with cardiogenic shock, break vicious circle caused by cardiogenic shock, so as to avoid cardiogenic shock bring multiple organ failure, and it is small to the wound of patient body, convenient for carrying out the effect of interim circulatory support to patient.
Description
Technical field
The present invention relates to field of medical technology, more specifically, it relates to a kind of percutaneous Left heart assistanee system.
Background technique
Cardiogenic shock is that clinical vital myocarditis is clinically relatively conventional one of cardiovascular disease, causes cardiac muscle
Scorching virus is most common with Coxsackie virus second group, but exact pathogenesis is not fully understood at present.The clinic of myocarditis
Performance and prognosis are different, less serious case can no conscious sympton, and patient with severe symptoms is it occur frequently that serious hemodynamic responses, such as mental and physical efforts
Failure, cardiogenic shock, malignant arrhythmia are even died suddenly.Studies have shown that myocarditis causes the between twenty and fifty sudden cardiac death rate to be
8.6% to 12%.In addition, myocarditis leads to the disease incidence of dilated cardiomyopathy in a large-scale prospective cohort study
It is 9%.Severe fulminant myocarditis (fulminant myocarditis, FM) onset is anxious, state of an illness weight, and variation is fast, accounts for about acute
The 11% of myocarditis sum, prognosis is poor, and acute stage case fatality rate may be up to 10% to 20%.As identified rapidly, while giving strong
Change support, symptomatic treatment, can restore and leaves little sequelae completely more than 90% patient.
For FM so far without specific treatment, typically using suiting the medicine to the illness and supporting treatment.Have hemodynamic instability or
Episode of heart failure person generally gives a line supportive treatment repeatedly.Merge while positive inotropic medicament uses or nonjoinder uses
Hormone may restore myocardial function, but the decompensation that may also lead to haemodynamics is even dead.Therefore, in acute stage, especially
It is that refractory heart failure patient is usually suggested carrying out mechanical-assisted support at present, comprising: anti-through intra-aortic oalloon
It fights, percutaneous cardiopulmonary support system, ventricular assist device and extracorporeal membrane oxygenation etc..
It is in left subclavian artery by arterial system with remote and arteria renalis open proximal through intra-aortic balloon pump
Descending aorta is built into 1 conduit that air bag is housed, and the distal end of conduit connects counterpulsation instrument.In diastole air bag qi of chong channel ascending adversely, receive
Contracting phase air bags can make pressure reduction in descending aorta, the afterload drop of heart to play the role of accessory heart pump
Low, myocardium keto consumption reduces, and heart acting is reduced, and pressure in diastole descending aorta can also increased, in diastole
Coronary perfusion is increased, so that suppressed or ischemic cardiac muscle be made to restore function again.But IABP is to blood pressure and coronal
The influence of artery (coronary artery) blood flow depends on the function of Left Ventricular to be only capable of the patient of completeness haemodynamics collapse
The circulatory support of very little is enough provided.
Percutaneous cardiopulmonary support system (PCPS) is a kind of effective bed side auxiliary circulation support system carried out in recent years, is
One of the form of extracorporal circulatory system (cardiopulmonary bypass).The system establishes pipeline by percutaneous methods, with oxygenator to red blood cell
Oxygen conjunction is carried out, the function of lung is substituted；Circulation power is generated with centrifugal pump, the contractile function of left ventricle is substituted, to help patient's degree
Spend critical days.But the Left ventricle assist effect in PCPS still cannot be very satisfactory, especially can not rule out since flow assists
Therefore caused afterload problem should keep a close eye on the infull case of Severe Left Ventricular.With in the complication of PCPS
With insert cardiovascular system complication and auxiliary circulation caused by conduit cause thrombus block or bleeding based on.PCPS is generally only suitable for
Used in it is urgent when auxiliary circulation in short-term, recovery for extremely low heart function is simultaneously insufficient.
Ventricular assist device (VAD) can by the blood drainage of atrium or ventricle to auxiliary device, after being boosted by blood pump,
Arterial system is fed back to again, is played the role of partly or entirely substituting heart acting, is remained sanguimotor.Embedded type LVAD is by blood
Pump is implanted to patient's body (cavum peritoneale or spatium extraperitoneale), needs pipeline supply energy and the internal blood of compensation across skin
The volume of pump changes.It can only be disposable.Significantly increase use cost.
The essence of extracorporeal membrane oxygenation (ECMO) is a kind of heart-lung machine of improvement, and most crucial part is membrane lung and blood
Pump, plays artificial lung and the artificial heart respectively.When ECMO is operated, blood is drawn from vein, absorbs oxygen, discharge two by membrane lung
Carbonoxide.By the blood of gas exchanges, vein (VV access) can be returned under the promotion of pump, may also return to artery (VA access).
The former is mainly used for external Breathing Suppotion, and the latter can replace the blood-pumping function of heart because of blood pump, can be not only used for breathing branch in vitro
It holds, and can be used for heart support.When the lung function of patient is badly damaged, when invalid to conventional therapy, ECMO can undertake gas
Switching task makes lung be in resting state, is that the rehabilitation of patient obtains the quality time.The heart function of same patient is badly damaged
When, blood pump can replace cardiac pumping function, maintain blood circulation.Currently, ECMO be counted as extracorporal circulatory system support most before
The science and technology on edge.But since the auxiliary that the complexity of its operation can not be applied to urgent heart failure is supported, have in use certain
Limitation.In addition, the equipment of ECMO is also prohibitively expensive.
In the prior art, through intra-aortic balloon pump, percutaneous cardiopulmonary support system, left ventricular assist device, external film
Lung oxygen, which is closed, all has respective limitation for the circulatory support during fulminant myocarditis rescue.Thus, in urgent need to resolve
The problem of stating device, develop a kind of implantation and remove it is relatively simple, it is small to patient body wound, be applicable to face
When circulatory support patient, for clinical treatment have stronger practicability auxiliary circulation system.
Summary of the invention
The object of the present invention is to provide a kind of percutaneous Left heart assistanee systems, and having can be according to patients with cardiogenic shock
Electrocardiosignal stablize patient haemodynamics, break vicious circle caused by cardiogenic shock, so as to avoid heart source
Property shock bring multiple organ failure, and it is small to the wound of patient body, convenient for carrying out interim circulatory support to patient
Effect.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of percutaneous Left heart assistanee
System, the master controller including two-chamber blood pump and for controlling the operation of two-chamber blood pump；The master controller is connected with for monitoring
The electrocardioscanner of heart electrocardiosignal；The two-chamber blood pump includes flowing into chamber, the outflow chamber connecting with inflow chamber and and master control
The blood pump dynamical system of device connection processed；The inflow chamber is connected with blood and introduces pipe, and the blood, which introduces, manages far from two-chamber blood pump
End be placed in atrium sinistrum；The outflow chamber is connected with blood effuser, and end of the effuser far from two-chamber blood pump is by one
Side or two sides femoral artery are placed in aorta；Unidirectional mechanical valve is equipped between the outflow chamber and blood effuser.
By using above-mentioned technical proposal, in the process treated using percutaneous Left heart assistanee system to patient
In, by electrocardioscanner, convenient for monitoring the electrocardiosignal of patient in real time；Then, electrocardioscanner is by the patient's monitored
Electrocardiosignal is transferred to master controller, master controller receive after the electrocardiosignal of the patient to the electrocardiosignal carry out analysis with
Processing, then master controller issues blood pump dynamical system of the control command signal into two-chamber blood pump according to the electrocardiosignal, and
Blood pump dynamical system is controlled according to the electrocardiosignal to work；It can be two-chamber blood pump by the work of blood pump dynamical system
It extracts blood and power is provided.Under the swabbing action of two-chamber blood pump, is introduced and managed by blood, it can be by the oxygen at heart atrium sinistrum
In the inflow chamber for closing blood sucking two-chamber blood pump；By flowing into chamber, convenient for storing the oxygenated blood aspirated from atrium sinistrum；Pass through
With flow into the outflow chamber that connect of chamber, be pumped into outflow chamber to flowing into intracavitary oxygenated blood convenient for that will store, then will flow out intracavitary
Oxygenated blood pump out outflow chamber to blood effuser；By blood effuser, convenient for oxygenated blood is delivered to aorta；It is logical
Unidirectional mechanical valve is crossed, carries out one-way flow convenient for oxygenated blood；Pipe is introduced by two-chamber blood pump, blood, blood effuser, is used
In the electrocardioscanner for controlling the master controller of two-chamber blood pump and being connect with master controller, can be incited somebody to action according to the electrocardiosignal of patient
The oxygenated blood of patient atrium sinistrum is according to the period of setting, revolving speed and decimation in time to aorta, to assist supporting fulminant
Myocarditis merges the patient of cardiogenic shock or patients with acute myocardial infarction cardiogenic shock, when reducing patient's cardiogenic shock
Cardiac load increases blood perfusion in aorta.
The present invention is further arranged to: the blood pump dynamical system includes the driving device connecting with master controller and power supply
Device, the power supply device are connect with driving device；The driving device is the easypro compression system of machinery connecting with master controller；Institute
Stating mechanical easypro compression system includes the extrusion chamber and hydraulic cavities intracavitary positioned at outflow；It is equipped with and master controller and electricity in the hydraulic cavities
The liquid pump of source device connection；Elastic membrane is equipped between the extrusion chamber and hydraulic cavities；The power supply device includes that external power supply connects
Mouth and internal battery.
By using above-mentioned technical proposal, relaxed by the machinery that extrusion chamber, hydraulic cavities and the liquid pump in hydraulic cavities are constituted
Compression system, convenient for providing driving force for two-chamber blood pump, to realize the suction operation to blood；In the process for carrying out blood suction
In, liquid pump of the control information into hydraulic cavities is issued by master controller, and control liquid pump and work；Pass through the work of liquid pump
Make, suck or be discharged hydraulic intracavitary liquid, to form the blood transmitting pressure in extrusion chamber, generates blood flow；Pass through
Power supply device, convenient for the work power supply for mechanical easypro compression system；The power supply dress being made up of external power source interface and internal battery
It sets, meets fixed work and the in short-term dual requirements of mobile working for a long time convenient for two-chamber blood pump.
The present invention is further arranged to: the length that the blood introduces pipe is 74-76cm；The blood introduces pipe and is equipped with the
One filter, the first filter distance flows into chamber and blood introduces the junction 5cm of pipe.
It can prevent the oxygen extracted out of heart atrium sinistrum from closing by first filter by using above-mentioned technical proposal
Small thrombus enters inflow chamber in blood.
The present invention is further arranged to: the blood effuser length is 84-86cm；The blood effuser is equipped with second
Filter, junction 5cm of second filter apart from blood effuser and outflow chamber.
Thrombus small in oxygenated blood can be prevented through flowing out by the second filter by using above-mentioned technical proposal
Chamber enters body circulation.
The present invention is further arranged to: being connected between the inflow chamber and outflow chamber by medical catheter；It is described medical to lead
Pipe is equipped with first check-valve；The blood effuser be equipped with second check-valve, the second check-valve be located at the second filter and
It flows out between chamber.
By using above-mentioned technical proposal, by medical catheter, the oxygenated blood convenient for flowing into intracavitary is able to enter stream
Chamber out；By first check-valve, convenient for preventing oxygenated blood from generating adverse current from flowing into during chamber enters outflow chamber；Pass through
Second check-valve, convenient for prevent oxygenated blood from outflow chamber by blood effuser enter aorta during generate it is inverse
Stream.
The present invention is further arranged to: the blood effuser is the polyurethane catheter of 17F or two 15F.
By using above-mentioned technical proposal, by the polyurethane catheter of 17F or two 15F, so that blood effuser
With good extensibility and flex stiffiness；Meanwhile using polyurethane catheter as blood effuser, so that blood effuser has
Have the characteristics that good biocompatibility, blood compatibility and antithrombotic property are good, thus will not blood injury ingredient.
The present invention is further arranged to: the blood introduces the polyurethane catheter that pipe is 21F；The blood introduces the head of pipe
End is equipped with 1 stomidium and multiple lateral orifices.
By using above-mentioned technical proposal, using the polyurethane catheter of 21F as blood effuser, so that blood introduces pipe
Have the characteristics that good biocompatibility, blood compatibility and antithrombotic property are good, thus will not blood injury ingredient；Pass through blood
1 stomidium at introducing tube head end and multiple lateral orifices, in the two-chamber blood pump course of work, convenient for the oxygenated blood at heart atrium sinistrum
Liquid can smoothly enter into blood and introduce pipe.
The present invention is further arranged to: the blood effuser is through being equipped with water-filling ball at the abdominal aorta above arteria iliaca communis
Capsule.
By using above-mentioned technical proposal, by water-filling sacculus, convenient for being reduced in the short time or preventing blood to lower limb
Supply, to guarantee the preferential blood supply of the vitals such as heart, brain and kidney.
The present invention is further arranged to: the master controller is connected with pressure sensor and the warning of detection blood stream pressure
Device；The pressure sensor is connect with blood flow effuser；The attention device is connect with the outer wall of two-chamber blood pump.
By using above-mentioned technical proposal, by pressure sensor, convenient for the pressure of monitor blood flow；Pressure sensor will supervise
The blood stream pressure information measured is transferred to master controller, and master controller believes the blood stream pressure after receiving the blood stream pressure information
Breath is analyzed and is handled, and is controlled the duty cycle of liquid pump in the mechanical easypro compression system of adjustment according to the blood stream pressure information, turned
The parameters such as speed and working time, to regulate and control the operating of entire auxiliary circulation system；Master controller is according to pressure sensor simultaneously
The blood stream pressure delivering control command information monitored controls attention device work and issues caution sound to attention device, thus
Cause the attention of doctor.
The present invention is further arranged to: the two-chamber blood pump is equipped with internal layer and outer layer；The internal layer and outer layer pass through negative pressure
It is seamless chimeric；The outer layer is connect with blood pump dynamical system.
By using above-mentioned technical proposal, the internal layer and outer layer being fitted by negative pressure seamless, convenient for the displacement at any time of internal layer,
So as to reduce the use cost of the percutaneous Left heart assistanee system of bion.
In conclusion the invention has the following advantages: by electrocardioscanner, convenient for monitoring the electrocardio of patient in real time
Signal；Then, the electrocardiosignal of the patient monitored is transferred to master controller by electrocardioscanner, and master controller receives the trouble
The electrocardiosignal is analyzed and handled after the electrocardiosignal of person, then master controller issues control life according to the electrocardiosignal
Blood pump dynamical system of the signal into two-chamber blood pump is enabled, and blood pump dynamical system is controlled according to the electrocardiosignal and is worked；It is logical
The work of blood pump dynamical system is crossed, the swabbing action convenient for extracting for two-chamber blood pump provides power；It is introduced and is managed by blood, is convenient for
Two-chamber blood pump can extract the oxygenated blood at heart atrium sinistrum；By flowing into chamber, closed convenient for storing the oxygen aspirated from atrium sinistrum
Blood；By with flow into the outflow chamber that connect of chamber, convenient for storage is pumped into outflow chamber to flowing into intracavitary oxygenated blood, then general
It flows out intracavitary oxygenated blood and pumps out outflow chamber to blood effuser；By blood effuser, convenient for oxygenated blood is delivered to
Aorta；By unidirectional mechanical valve, one-way flow is carried out convenient for oxygenated blood；Pipe, blood are introduced by two-chamber blood pump, blood
Effuser, the master controller for controlling two-chamber blood pump and the electrocardioscanner connecting with master controller, can be according to patient's
Electrocardiosignal by the oxygenated blood of patient atrium sinistrum according to the period of setting, revolving speed and decimation in time to aorta, consequently facilitating
Auxiliary supports fulminant myocarditis to merge cardiogenic shock or cardiogenic shock complicating acute myocardial infarction, reduces patient's heart
Cardiac load when source property is suffered a shock increases blood perfusion in aorta.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the embodiment of the present invention；
Fig. 2 is the structural block diagram in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram that blood flow introduces tube head end in the embodiment of the present invention.
In figure: 1, two-chamber blood pump；2, master controller；3, electrocardioscanner；4, chamber is flowed into；5, chamber is flowed out；6, blood introduces
Pipe；7, blood effuser；8, unidirectional mechanical valve；9, power supply device；10, extrusion chamber；11, hydraulic cavities；12, liquid pump；13, elastic
Film；14, external power source interface interface；15, internal battery；16, first filter；17, the second filter；18, medical catheter；
19, first check-valve；20, second check-valve；21, stomidium；22, lateral orifices；23, water-filling sacculus；24, pressure sensor；25, alert
Show device；26, outer layer；27, internal layer；28, atrium sinistrum；29, aorta.
Specific embodiment
Below in conjunction with attached drawing 1-3, invention is further described in detail.
Embodiment: a kind of percutaneous Left heart assistanee system, as shown in Figure 1, Figure 2 and Figure 3, including two-chamber blood pump 1 and use
In the master controller 2 that control two-chamber blood pump 1 is run.Master controller 2 is connected with the cardioelectric monitor for monitoring heart electrocardiosignal
Instrument 3, electrocardioscanner 3 and master controller 2 are coupled.Two-chamber blood pump 1 include flow into chamber 4, with the outflow chamber 5 that connect of inflow chamber 4 and
The blood pump dynamical system being connect with master controller 2.It flows into chamber 4 and is connected with blood introducing pipe 6, blood introduces pipe 6 far from two-chamber blood
The end of pump 1 is placed in atrium sinistrum 28.Outflow chamber 5 is connected with blood effuser 7, and end of the effuser far from two-chamber blood pump 1 is by one
Side or two sides femoral artery are placed in aorta 29.Unidirectional mechanical valve 8 is installed between outflow chamber 5 and blood effuser 7.
In the present embodiment, master controller 2 is embedded microprocessor.Blood introduces pipe 6 and reaches the right side through femoral vein uplink
Atrium, then transatrial septal puncture, is placed into atrium sinistrum 28.Patient is treated using percutaneous Left heart assistanee system
During, by electrocardioscanner 3, convenient for monitoring the electrocardiosignal of patient in real time.Then, electrocardioscanner 3 will monitor
The electrocardiosignal of patient be transferred to master controller 2, master controller 2 receives after the electrocardiosignal of the patient to the electrocardiosignal
It is analyzed and is handled, then master controller 2 issues blood pump of the control command signal into two-chamber blood pump 1 according to the electrocardiosignal
Dynamical system, and blood pump dynamical system is controlled according to the electrocardiosignal and is worked.It, can by the work of blood pump dynamical system
Blood is extracted for two-chamber blood pump 1, and power is provided.Under the swabbing action of two-chamber blood pump 1, pipe 6 is introduced by blood, it can be by the heart
In the inflow chamber 4 of oxygenated blood sucking two-chamber blood pump 1 at dirty atrium sinistrum 28.By flowing into chamber 4, convenient for storing from atrium sinistrum
The oxygenated blood of 28 suctions.By with flow into the outflow chamber 5 that connect of chamber 4, convenient for the flowing of oxygenated blood that flows into chamber 4 and turn
It moves, then will flow out the oxygenated blood liquid pump 12 in chamber 5 and go out to flow out chamber 5 to blood effuser 7.By blood effuser 7, being convenient for will
Oxygenated blood is delivered to aorta 29.By unidirectional mechanical valve 8, one-way flow is carried out convenient for oxygenated blood.Pass through two-chamber blood
Pump 1, blood introduce pipe 6, blood effuser 7, the master controller 2 for controlling two-chamber blood pump 1 and the heart connecting with master controller 2
Pyroelectric monitor instrument 3, can according to the electrocardiosignal of patient by the oxygenated blood of patient atrium sinistrum 28 according to the period of setting, revolving speed and
Decimation in time is to aorta 29, consequently facilitating auxiliary supports fulminant myocarditis to merge cardiogenic shock or acute myocardial infarction AMI simultaneously
Patients with cardiogenic shock is sent out, cardiac load when patient's cardiogenic shock is reduced, increases blood perfusion in aorta 29.
Blood pump dynamical system includes the driving device connecting with master controller 2 and power supply device 9, power supply device 9 and driving
Device connection.Driving device is the easypro compression system of machinery connecting with master controller 2.The easypro compression system of machinery includes being located at outflow chamber 5
Interior extrusion chamber 10 and hydraulic cavities 11.The liquid pump 12 connecting with master controller 2 and power supply device 9 is installed in hydraulic cavities 11.It squeezes
It is separated between pressure chamber 10 and hydraulic cavities 11 by elastic membrane 13.Power supply device 9 includes external power source interface and internal battery 15.
In the present embodiment, liquid pump 12 is the miniature from suction pumps 12 of adjustable speed.Elastic membrane 13 is that coefficient of elasticity is big and energy
It is resistant to the bioprotein film of nearly ten thousand hypoelasticity deformation.Internal battery 15 is micro battery.By extrusion chamber 10,11 and of hydraulic cavities
The easypro compression system of the machinery that liquid pump 12 in hydraulic cavities 11 is constituted, convenient for providing driving force for two-chamber blood pump 1, thus realization pair
The suction operation of blood.During carrying out blood suction, control information is issued into hydraulic cavities 11 by master controller 2
Liquid pump 12, and control liquid pump 12 and work.By the work of liquid pump 12, sucking or the liquid being discharged in hydraulic cavities 11, thus
The blood formed in extrusion chamber 10 transmits pressure, generates blood flow.By power supply device 9, convenient for for mechanical easypro compression system
Work power supply.The power supply device 9 being made up of external power source interface and internal battery 15, meets for a long time convenient for two-chamber blood pump 1
Fixed work and the in short-term dual requirements of mobile working.
The length that blood introduces pipe 6 is 74-76cm.Blood introduce pipe 6 be equipped with first filter 16, first filter 16 away from
From the junction 5cm for flowing into chamber 4 and blood introducing pipe 6.
In the present embodiment, by first filter 16, the oxygenated blood extracted out of heart atrium sinistrum 28 can be prevented
Medium and small thrombus, which enters, flows into chamber 4.
7 length of blood effuser is 84-86cm.Blood effuser 7 is equipped with the second filter 17,17 distance of the second filter
The junction 5cm of blood effuser 7 and outflow chamber 5.
In the present embodiment, by the second filter 17, it can prevent thrombus small in oxygenated blood from entering through outflow chamber 5
Body circulation.
It flows between chamber 4 and outflow chamber 5 and is connected by medical catheter 18.Medical catheter 18 is equipped with first check-valve 19.Blood
Liquid stream outlet pipe 7 is equipped with second check-valve 20, and second check-valve 20 is located between the second filter 17 and outflow chamber 5.
In the present embodiment, medical catheter 18 is the conduit of polyurethane material.By medical catheter 18, convenient for flowing into chamber 4
Interior oxygenated blood is able to enter outflow chamber 5.By first check-valve 19, convenient for preventing oxygenated blood from entering from chamber 4 is flowed into
To outflow chamber 5 during generate adverse current.By second check-valve 20, convenient for preventing oxygenated blood from outflow chamber 5 by blood
Effuser 7 generates adverse current during entering aorta 29.
Blood effuser 7 is the polyurethane catheter of 17F or two 15F.
In the present embodiment, F is the symbol in French measuring system, indicates the diameter of blood effuser 7, wherein 1F is fixed
It is the 1/3 of 1mm, so diameter 1F ≈ 0.33mm.By the polyurethane catheter of 17F or two 15F, so that blood effuser
7 have good extensibility and flex stiffiness.Meanwhile using polyurethane catheter as blood effuser 7, so that blood effuser
7 have the characteristics that good biocompatibility, blood compatibility and antithrombotic property are good, thus will not blood injury ingredient.
Blood introduces the polyurethane catheter that pipe 6 is 21F.The head end that blood introduces pipe 6 is equipped with 1 stomidium 21 and multiple sides
Hole 22.
In the present embodiment, F is the symbol in French measuring system, indicates the diameter of blood effuser 7, wherein 1F is fixed
It is the 1/3 of 1mm, so diameter 1F ≈ 0.33mm.Using diameter is the polyurethane catheter of 21F as blood effuser 7, so that blood
Liquid introduce pipe 6 have the characteristics that good biocompatibility, blood compatibility and antithrombotic property are good, thus will not blood injury at
Point.1 stomidium 21 and multiple lateral orifices 22 that 6 head end of pipe is introduced by blood are convenient for the heart in 1 course of work of two-chamber blood pump
Oxygenated blood at dirty atrium sinistrum 28 can smoothly enter into blood and introduce pipe 6.
Blood effuser 7 is through being equipped with water-filling sacculus 23 at the abdominal aorta 29 above arteria iliaca communis.
In the present embodiment, physiological saline has been filled in water-filling sacculus 23.By water-filling sacculus 23, can subtract in the short time
Less or supply of the blood to lower limb is prevented, to guarantee the preferential blood supply of the vitals such as heart, brain and kidney.
Master controller 2 is connected with the pressure sensor 24 and attention device 25 of detection blood stream pressure；Pressure sensor 24 and blood
Flow effuser connection；Attention device 25 is connect with the outer wall of two-chamber blood pump 1.
In the present embodiment, by pressure sensor 24, real-time monitoring is carried out to the pressure of blood flow.Pressure sensor 24 will
The blood stream pressure information monitored is transferred to master controller 2, and master controller 2 receives after the blood stream pressure information to the blood flow pressure
Force information is analyzed and is handled, and the work week of liquid pump 12 in the mechanical easypro compression system of adjustment is controlled according to the blood stream pressure information
The parameters such as phase, revolving speed and working time, to regulate and control the operating of entire auxiliary circulation system.Master controller 2 is according to pressure simultaneously
The blood stream pressure delivering control command information that sensor 24 monitors controls the work of attention device 25 and issues to attention device 25
Caution sound, so as to cause the attention of doctor.
Two-chamber blood pump 1 is 26 double-layer structure of internal layer 27 and outer layer.Internal layer 27 and outer layer 26 are chimeric by negative pressure seamless.Outer layer
26 connect with blood pump dynamical system.
In the present embodiment, the internal layer 27 and outer layer 26 being fitted by negative pressure seamless, convenient for the displacement at any time of internal layer 27, from
And it can reduce the use cost of the percutaneous Left heart assistanee system of bion.
Working principle: it during being treated using percutaneous Left heart assistanee system to patient, is supervised by electrocardio
Instrument 3 is surveyed, convenient for monitoring the electrocardiosignal of patient in real time.Then, electrocardioscanner 3 transmits the electrocardiosignal of the patient monitored
To master controller 2, master controller 2 is analyzed and is handled to the electrocardiosignal after receiving the electrocardiosignal of the patient, then
Master controller 2 issues blood pump dynamical system of the control command signal into two-chamber blood pump 1 according to the electrocardiosignal, and according to the heart
Electric signal control blood pump dynamical system works.By the work of blood pump dynamical system, convenient for the pumping extracted for two-chamber blood pump 1
Suction effect provides power.Pipe 6 is introduced by blood, the oxygenated blood at heart atrium sinistrum 28 can be extracted convenient for two-chamber blood pump 1.
By flowing into chamber 4, convenient for storing the oxygenated blood aspirated from atrium sinistrum 28.By the outflow chamber 5 being connect with inflow chamber 4, it is convenient for
Storage to the oxygenated blood liquid pump 12 flowed into chamber 4 is entered to flow out chamber 5, the oxygenated blood liquid pump 12 in chamber 5 then will be flowed out and goes out to flow out
Chamber 5 is to blood effuser 7.By blood effuser 7, convenient for oxygenated blood is delivered to aorta 29.Pass through unidirectional mechanical valve
Film 8 carries out one-way flow convenient for oxygenated blood.Pipe 6, blood effuser 7, double for controlling are introduced by two-chamber blood pump 1, blood
The master controller 2 of chamber blood pump 1 and the electrocardioscanner 3 connecting with master controller 2, can be according to the electrocardiosignal of patient by patient
The oxygenated blood of atrium sinistrum 28 is according to the period of setting, revolving speed and decimation in time to aorta 29, consequently facilitating auxiliary is supported cruelly
Hair property myocarditis merges cardiogenic shock or cardiogenic shock complicating acute myocardial infarction, when reducing patient's cardiogenic shock
Cardiac load, increase aorta 29 in blood perfusion.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of percutaneous Left heart assistanee system, it is characterized in that: including two-chamber blood pump (1) and for controlling two-chamber blood pump (1)
The master controller (2) of operation；The master controller (2) is connected with the electrocardioscanner (3) for monitoring heart electrocardiosignal；Institute
Stating two-chamber blood pump (1) includes flowing into chamber (4), the outflow chamber (5) connecting with inflow chamber (4) and the blood connecting with master controller (2)
Pump power system；The inflow chamber (4) is connected with blood and introduces pipe (6), and the blood introduces pipe (6) far from two-chamber blood pump (1)
End be placed in atrium sinistrum (28)；The outflow chamber (5) is connected with blood effuser (7), and the effuser is far from two-chamber blood pump
(1) end is placed in aorta (29) by one or both sides femoral artery；It is set between the outflow chamber (5) and blood effuser (7)
There are unidirectional mechanical valve (8).
2. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the blood pump dynamical system packet
The driving device connecting with master controller (2) and power supply device (9) are included, the power supply device (9) connect with driving device；It is described
Driving device is the easypro compression system of machinery connecting with master controller (2)；The mechanical easypro compression system includes being located in outflow chamber (5)
Extrusion chamber (10) and hydraulic cavities (11)；It is equipped in the hydraulic cavities (11) and to be connect with master controller (2) and power supply device (9)
Liquid pump (12)；Elastic membrane (13) are equipped between the extrusion chamber (10) and hydraulic cavities (11)；The power supply device (9) includes external
Power interface and internal battery (15).
3. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the blood introduces pipe (6)
Length be 74-76cm；The blood introduces pipe (6) and is equipped with first filter (16), first filter (16) the distance stream
Enter chamber (4) and blood introduces the junction 5cm of pipe (6).
4. a kind of percutaneous Left heart assistanee system according to claim 3, it is characterized in that: the blood effuser (7)
Length is 84-86cm；The blood effuser (7) is equipped with the second filter (17), and second filter (17) is apart from blood
The junction 5cm of effuser (7) and outflow chamber (5).
5. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the inflow chamber (4) and stream
It is connected between chamber (5) by medical catheter (18) out；The medical catheter (18) is equipped with first check-valve (19)；The blood stream
Outlet pipe (7) be equipped with second check-valve (20), the second check-valve (20) be located at the second filter (17) with flow out chamber (5) it
Between.
6. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the blood effuser (7)
For the polyurethane catheter of 17F or two 15F.
7. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the blood introduces pipe (6)
For the polyurethane catheter of 21F；The head end that the blood introduces pipe (6) is equipped with 1 stomidium (21) and multiple lateral orifices (22).
8. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the blood effuser (7)
Through being equipped with water-filling sacculus (23) at the abdominal aorta (29) above arteria iliaca communis.
9. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the master controller (2) is even
It is connected to the pressure sensor (24) and attention device (25) of detection blood stream pressure；The pressure sensor (24) and blood flow effuser connect
It connects；The attention device (25) connect with the outer wall of two-chamber blood pump (1).
10. a kind of percutaneous Left heart assistanee system according to claim 1, it is characterized in that: the two-chamber blood pump (1) is set
There are internal layer (27) and outer layer (26)；The internal layer (27) and outer layer (26) are chimeric by negative pressure seamless；The outer layer (26) and blood
The connection of pump power system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910330179.XA CN109939282A (en) | 2019-04-23 | 2019-04-23 | A kind of percutaneous Left heart assistanee system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910330179.XA CN109939282A (en) | 2019-04-23 | 2019-04-23 | A kind of percutaneous Left heart assistanee system |
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| CN109939282A true CN109939282A (en) | 2019-06-28 |
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| CN201910330179.XA Pending CN109939282A (en) | 2019-04-23 | 2019-04-23 | A kind of percutaneous Left heart assistanee system |
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| CN110974318A (en) * | 2019-11-25 | 2020-04-10 | 西安马克医疗科技有限公司 | External simulation device and simulation system for transcatheter aortic valve replacement |
| CN111481763A (en) * | 2020-04-24 | 2020-08-04 | 南京鼓楼医院 | Pulse type artificial lung extracorporeal circulation manager |
| CN112516397A (en) * | 2020-12-19 | 2021-03-19 | 浙江大学医学院附属第一医院 | Self-pressurization flow-switching system and working method thereof |
| CN113907724A (en) * | 2021-11-09 | 2022-01-11 | 刘明明 | Pancreas overall microcirculation function evaluation and visualization method |
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Effective date of registration: 20240621 Address after: 515041 Guangdong city of Shantou province Chang Ping Road No. 57 Applicant after: THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIVERSITY MEDICAL College Country or region after: China Address before: 610000, No. 24, south section of Ring Road, Sichuan, Chengdu Applicant before: SICHUAN University Country or region before: China |