CN104174078B - A kind of left ventricular assist device - Google Patents
A kind of left ventricular assist device Download PDFInfo
- Publication number
- CN104174078B CN104174078B CN201410468040.9A CN201410468040A CN104174078B CN 104174078 B CN104174078 B CN 104174078B CN 201410468040 A CN201410468040 A CN 201410468040A CN 104174078 B CN104174078 B CN 104174078B
- Authority
- CN
- China
- Prior art keywords
- ventricle
- outer tube
- section
- tube
- mesh
- Prior art date
- 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.)
- Active
Links
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
Abstract
This application discloses a kind of left ventricular assist device, including: outer tube, outer tube includes the ventricle section being positioned in left ventricle and the artery segment being positioned in aorta, ventricle section offers the first suction mesh, the first discharge mesh, outer tube connection external driver device is offered on artery segment；Ventricular side pumping part, is arranged in ventricle section；Discharging section balloon tube, its two ends seal and are fixed on the outer wall of artery segment, discharge section balloon tube and offer the second discharge mesh, stagger and do not overlap in the second position discharging mesh and the first discharge mesh.In this left ventricular assist device, by suction and the punching press of external driver device, utilize ventricular side pumping part to be sucked outer tube from left ventricle by blood, utilize discharge section balloon tube by blood from outer bank of tubes to aorta, realize a circulation, the blood pump in left ventricle is entered aorta.The left ventricular assist device simple in construction of the present invention, highly reliable, little to the wound of bodily tissue, and hemocyte will not be produced destruction.
Description
Technical field
The present invention relates to interventional medical device technical field, particularly to a kind of left ventricular assist device.
Background technology
In recent years, cardiovascular disease incidence rate increases.Investigate according to World Health Organization (WHO), at present, the heart
Angiopathy accounts for about the 30% of all diseases, it is contemplated that the year two thousand twenty cardiovascular disease will account for all diseases
40%, wherein, numerous diseases eventually affects left ventricular function, causes left ventricular insufficiency, cardiogenic shock
Deng left ventricular function disease.
For left ventricular function disease, Chinese scholars proposes new method, left ventricular assist device (Left
Ventricular assist devices, english abbreviation is LVAD) it is for left heart insufficiency patient, by a left side
Myocardial blood drains into aorta, thus provides circulatory support.LVAD is divided into implantation by whether implanting
Type and the other type of body；It is divided into jerk type and axial flow type by blood liquid form.
Traditional left ventricular assist device is to be implanted by surgical operation, by left ventricle and aorta
Punching, centre arranges pump, sets up passage.
It is big that surgical operation implants wound, and at present, the more percutaneous left ventricular assist device of clinical practice is main
(Extracorporeal membrane oxygenation, english abbreviation is ECMO system
Ecmo), intra aortic balloon counterpulsation (intra-aortic balloon counter pulsation, english abbreviation
For IABP), Tandem Heart percutaneous left ventricular assist device and Impella ventricle auxiliary system.Ecmo
System is to implant two conduits in aorta and cardinal vein respectively, and the conduit in cardinal vein connects external people
Work lung, external artificial lung connects axial-flow pump or jerk pump, reconnects the conduit in aorta, and shortcoming is to build
Vertical needing external artificial lung, structure is complicated, and pulmonary circulation is interrupted, and easily causes thrombosis in Pulmonary Vascular, and easily
Massive hemorrhage.After Intra-aortic Balloon Pump is to get involved a long sacculus at aorta, and sacculus is jumped along with heart
Dynamic charge, exhaust, strengthens blood supply of cardiac muscle, and shortcoming is to rely on the function of ventricle, job insecurity.Tandem
Heart system is by through the inflow pipe of femoral venous puncture to left atrium, external central pump, femoral artery puncture
Effuser to left ventricle forms, and sets up left atrium to femoral artery drainage channel, and shortcoming is to have wound at two
Greatly, operation complexity, need atrial septal puncture.Impella system is by femoral artery puncture leading to left ventricle
Pipe forms, and catheter proximal end has the blood inflow entrance of caged, and being positioned at ascending aorta has a flow export, inflow entrance and
Having axial-flow pump between flow export, left ventricle blood is drained into aorta, shortcoming is that flow depends on pump
Rotating speed, high-speed rotation blade may destroy erythrocyte etc..
In sum, on the premise of completing left ventricle miscellaneous function, how to solve existing left ventricle auxiliary
Help apparatus structure and operation complexity, job insecurity, the problem big to human tissue cell's wound, become
Those skilled in the art problem demanding prompt solutions.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of left ventricular assist device, complete left ventricle
On the premise of miscellaneous function, to simplify structurally and operationally, improve functional reliability, reduce tissue
Wound with cell.
For reaching above-mentioned purpose, the present invention provides techniques below scheme:
A kind of left ventricular assist device, including:
Outer tube, described outer tube includes the ventricle section being positioned in left ventricle and the artery segment being positioned in aorta,
Offer the first suction mesh on the tube wall of described ventricle section, the tube wall of described artery segment offers first
Discharging mesh, described outer tube one end is closed, and the other end is used for connecting external driver device；
Ventricular side pumping part, is arranged in described ventricle section, when described external driver device is aspirated,
For the blood in left ventricle being incorporated in the tube chamber of described outer tube, when described external driver device punching press
Time, for stoping the blood in described outer tube to be discharged from described ventricle section；
Discharging section balloon tube, its two ends seal and are fixed on the outer wall of described artery segment, described discharge section ball
Offering the second discharge mesh on the tube wall of capsule pipe, described second discharges mesh discharges mesh with described first
Position stagger and do not overlap, when described external driver device is aspirated, described discharge section balloon tube seal
It is fitted on the outer wall of described artery segment, when described external driver device punching press, described discharge section sacculus
Pipe separates with the outer wall of described artery segment, forms gap.
Preferably, in above-mentioned left ventricular assist device, described ventricular side pumping part is pumping stages ball
Capsule pipe, its two ends seal and are fixed on the inwall of described ventricle section, described pumping stages balloon tube offers
Second sucks mesh, and described second sucks mesh staggers with the described first position sucking mesh and does not overlaps,
Described pumping stages balloon tube is ductile material, when described external driver device is aspirated, and described pumping stages
The inwall of balloon tube and described ventricle section forms gap, when described external driver device punching press, described in take out
Inhale section balloon tube sealing paste to be combined on the inwall of described ventricle section.
Preferably, in above-mentioned left ventricular assist device, described ventricular side pumping part is for being arranged on
State ventricle intrasegmental part and the one-way valve between described ventricle section and described artery segment, described unidirectional
The one-way conduction direction of valve is to be pointed to artery segment by ventricle section.
Preferably, in above-mentioned left ventricular assist device, also include being connected with the distal end of described outer tube
Joint, described joint is used for connecting described external driver device.
Preferably, in above-mentioned left ventricular assist device, described joint includes the first branched pipe and second
Branched pipe, described first branched pipe is connected with described external driver device；
Also include guidewire lumen, guidewire lumen through the inside of described outer tube, the proximal part of described guidewire lumen with
The proximal part of described outer tube seals fixing, and stretches out the proximal part of described outer tube, the telecentricity of described guidewire lumen
The end seal with described second branched pipe is held to fix, and and ft connection.
Preferably, in above-mentioned left ventricular assist device, also include that guidewire lumen, described guidewire lumen are fixed
On the outer wall of the proximal part of described outer tube.
Preferably, in above-mentioned left ventricular assist device, the proximal part of described guidewire lumen has to telecentricity
The cyclic structure of extreme direction bending.
Preferably, in above-mentioned left ventricular assist device, also include being arranged on described outer tube and being positioned at
Development indicating between described ventricle section and described artery segment.
Preferably, in above-mentioned left ventricular assist device, described outer tube is single layer structure, described monolayer
Structure is metal webmaster；Or, described outer tube is multiple structure, includes internal layer, institute the most successively
Stating internal layer is poly tetrafluoroethylene, intermediate layer and outer layer, and described intermediate layer is steel wire or spring, described
Outer layer is nylon layer.
Preferably, in above-mentioned left ventricular assist device, the ventricle section of described outer tube and described artery segment
Between angle 135 °～155 °.
Compared with prior art, the invention has the beneficial effects as follows:
In the left ventricular assist device that the present invention provides, ventricular side pumping part is arranged on the ventricle section of outer tube
In, discharge section balloon tube two ends sealing shroud on the outer wall of the artery segment of outer tube.By left ventricular assist device
Being punctured in heart, make the ventricle section of outer tube be positioned in left ventricle, the artery segment of outer tube is positioned in aorta,
Ventricle section and artery segment are separated by the aortic valve between left ventricle with aorta, complementary interference, during work,
When external driver device is aspirated, in outer tube, form negative pressure, under suction function, discharge section balloon tube quilt
Absorption is fitted on the outer wall of artery segment, discharges mesh due to second and staggers in the first position discharging mesh
Arrange and do not overlap, therefore, discharging section balloon tube and the first discharge mesh on artery segment is sealed, outer tube
Artery segment do not connect with aorta, meanwhile, ventricular side pumping part taking out in external driver device
Under suction effect, the blood in left ventricle is drawn into the ventricular side of outer tube, and enters the whole pipe of outer tube
In chamber；Afterwards, when external driver device punching press in outer tube, ventricular side pumping part stops in outer tube
Blood from ventricle section arrange to left ventricle, meanwhile, under punching press effect, discharge section balloon tube depart from
Sealing with artery segment is fitted, and forms passage gaps between the two, and first discharges mesh and second discharges net
Hole turns on, and blood enters aorta from the artery segment of outer tube.By suction and the punching of external driver device
Press through Cheng Shixian mono-circulation, the blood pump in left ventricle is entered aorta.The left ventricle auxiliary of the present invention
Device need not arrange the parts such as artificial lung, simple in construction, will not stop work because of the interruption of pulmonary circulation
Making, reliability strengthens, and has only to offer a puncturing hole on health, little to the wound of bodily tissue,
And hemocyte will not be produced and destroy.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural representation of the first left ventricular assist device that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is that the A in Fig. 1 is to partial schematic diagram；
Fig. 3 is that the ventricle section of the outer tube of the left ventricular assist device in Fig. 1 is shown with the structure of pumping stages balloon tube
It is intended to；
Fig. 4 is that the artery segment of the outer tube of the left ventricular assist device in Fig. 1 shows with the structure discharging section balloon tube
It is intended to；
The structural representation of the second left ventricular assist device that Fig. 5 provides for the embodiment of the present invention；
The structural representation of the third left ventricular assist device that Fig. 6 provides for the embodiment of the present invention；
Fig. 7 is that the B in Fig. 6 is to partial schematic diagram；
The structural representation of the 4th kind of left ventricular assist device that Fig. 8 provides for the embodiment of the present invention；
The structural representation of the 5th kind of left ventricular assist device that Fig. 9 provides for the embodiment of the present invention；
The structural representation of the 6th kind of left ventricular assist device that Figure 10 provides for the embodiment of the present invention.
In above-mentioned Fig. 1-Figure 10,11 for joint, 111 be the first branched pipe, 112 be the second branched pipe, 12
For outer tube, 121 be the first discharge mesh, 122 be intermediate layer, 123 be outer layer, 124 be internal layer, 125 be
First suck mesh, 13 be guidewire lumen, 131 be cyclic structure, 14 for discharging balloon tube, 141 being second
Discharge mesh, 15 be pumping stages balloon tube, 151 be the second suction mesh, 16 be development indicating, 18 for single
To valve.
Detailed description of the invention
The core of the present invention there is provided a kind of left ventricular assist device, completes left ventricle miscellaneous function
Under premise, simplify structurally and operationally, improve functional reliability, reduce tissue and cell
Wound.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1-Figure 10, embodiments provide a kind of left ventricular assist device, including outer tube 12,
Ventricular side pumping part and discharge section balloon tube 14.Wherein, outer tube 12 includes ventricle section and artery segment, the heart
Room section is adjacent with artery segment, and outer tube 12 is harder, has good radial crush resistance energy, during use, ventricle
Section is positioned at left ventricle, and artery segment is positioned at aorta；The first suction net is offered on the tube wall of ventricle section
Hole 125, artery segment offers the first discharge mesh 121, and one end of outer tube 12 is closed, and the other end is used
In connection external driver device, external driver device provides suction force and stamping press；Ventricular side pumping part
Being arranged in ventricle section, when external driver device is aspirated, ventricular side pumping part is by the blood in left ventricle
Liquid is incorporated in the tube chamber of outer tube 12, when external driver device punching press, outside ventricular side pumping part stops
Blood in pipe is arranged to left ventricle from ventricle section；The two ends sealing discharging section balloon tube 14 is fixed in artery segment
Outer wall on, the first discharge mesh 121 is all covered and is discharging in section balloon tube 14, and discharge section sacculus
Offering the second discharge mesh 141 on the tube wall of pipe 14, second discharges mesh 141 and first discharges mesh 121
Position staggered and do not overlap, discharge section balloon tube 14 and be made up of the preferable medical material of tensile property,
The thinnest, the softest, when external driver device is aspirated, to discharge section balloon tube 14 and shrink, sealing paste is combined in dynamic
On the outer wall of arteries and veins section, first discharges mesh 121 is not turned on the second discharge mesh 141, when external drive fills
When putting punching press, discharge section balloon tube 14 and expand, depart from laminating with the outer wall of artery segment, form gap, the
One discharges mesh 121 turns on the second discharge mesh 141.
Work process and the operation principle of above-mentioned left ventricular assist device be: during operation, rushes with heparin saline
Cleaning device, and aerofluxus, connect outer tube 12 with external driver device, in external driver device and outer tube 12
The cavity that chamber connects heparin saline rinses, and fills heparin saline, aerofluxus.Complete the work that operation is necessary
After work, the sheath pipe at seal wire femoral artery puncture position is penetrated aorta, eventually arrives at left ventricle, outside making
The ventricle section of pipe 12 is positioned in left ventricle, and the artery segment of outer tube 12 is positioned in aorta, ventricle section and tremulous pulse
Section is separated by the aortic valve between left ventricle with aorta.During work, when external driver device is aspirated,
Form negative pressure in outer tube 12, under suction function, discharge the adsorbed contraction of section balloon tube 14, be fitted in dynamic
On the outer wall of arteries and veins section, due to second discharge mesh 141 staggered with the position of the first discharge mesh 121 and
Do not overlap, therefore, discharge section balloon tube 14 and the first discharge mesh 121 on artery segment is sealed, first row
Go out mesh 121 to be not turned on the second discharge mesh 141, then the artery segment of outer tube 12 does not connects with aorta,
Blood in aorta will not enter in outer tube 12, and meanwhile, ventricular side pumping part is in external drive
Under the swabbing action of device, the blood in left ventricle is drawn in the ventricle section of outer tube 12, and enters
Entering in the whole tube chamber of outer tube 12 and in the cavity of external driver device, this process completes blood from the left heart
Room enters the operation of outer tube 12；Afterwards, external driver device carries out punching press in outer tube 12, and ventricular side is taken out
Inhaling parts stops the blood in outer tube 12 to be arranged to left ventricle from ventricle section, meanwhile, under punching press effect,
Discharging section balloon tube 14 to expand, its tube wall departs from the outer wall with artery segment and seals laminating, is formed between the two
Passage gaps, first discharges mesh 121 turns on the second discharge mesh 141, and blood is from the tremulous pulse of outer tube 12
Section enters in aorta, and this process completes blood and enters the operation of aorta from outer tube 12.Driven by outside
Suction and the punching course of dynamic device realize a circulation, and the blood pump in left ventricle is entered aorta.
It can be seen that the left ventricular assist device of the present invention need not arrange the parts such as artificial lung, structure letter
Single, will not quit work because of the interruption of pulmonary circulation, reliability strengthens, and has only to open on health
If a puncturing hole, little to the wound of bodily tissue, and hemocyte will not be produced destruction.And outward
Portion's driving means can carry out the regulation of suction and punching press frequency according to the actual pulse frequency of human body, it is achieved
Frequency Synchronization, thus realize the miscellaneous function of left ventricle.
As shown in Fig. 1-Fig. 7, in the present invention one specific embodiment, ventricular side pumping part is pumping stages ball
Capsule pipe 15, is arranged on ventricle intrasegmental part, and two ends seal and are fixed on the inwall of ventricle section, aspirates first
Mesh 125 covers in pumping stages balloon tube 14, and pumping stages balloon tube 15 offers the second suction mesh
151, the second suction mesh 151 is staggered with the position of the first suction mesh 125 and does not overlaps, pumping stages
Balloon tube 15 is made up of the preferable medical material of tensile property, and the thinnest the softest, concrete structure sees Fig. 3.
Operationally, when external driver device is aspirated, outer tube 12 is internally formed negative pumping stages balloon tube 15
Pressure, pumping stages balloon tube 15 shrinks under the swabbing action of negative pressure, and shrinkage factor is more than the shrinkage factor of outer tube 12,
Then forming passage gaps between the inwall of pumping stages balloon tube 15 and ventricle section, first sucks mesh 125 and the
Two suck mesh 151 turns on, and now, blood sucks in ventricle section from left ventricle, and flows into whole outer tube 12
Tube chamber and external driver device, when external driver device punching press, pumping stages balloon tube 15 expands, close
Sealing label is combined on the inwall of ventricle section, and first sucks mesh 125 is not turned on, outward with the second suction mesh 151
Blood in pipe 12 will not be by pumping stages balloon tube 15 row of ventricle section to left ventricle.
As Figure 8-Figure 10, in the present invention one specific embodiment, ventricular side pumping part or for arrange
At ventricle intrasegmental part and the one-way valve between ventricle section and artery segment 18, the list of one-way valve 18
It is to be pointed to artery segment by ventricle section to conducting direction.
Then operation principle and the work process of the ventricular side pumping part of employing one-way valve 18 is: work as outside
During driving means suction, forming negative pressure in outer tube 12, blood is by the first suction mesh 125 in ventricle section
It is inhaled into ventricle section, and under the effect of suction force, enters the blood of ventricle section by being arranged on ventricle section
With the one-way valve 18 between artery segment enters artery segment, and flow through whole outer tube 12 and external drive dress
In the cavity put, when external driver device punching press, owing to one-way valve 18 has one-way conduction performance,
Only allowing blood to circulate to artery segment from ventricle section, therefore, blood is flowed to ventricle by one-way valve 18 prevention
Section, then blood will not from ventricle section return left ventricle, and can only from discharge section balloon tube 14 row to aorta,
Complete blood by left ventricle to the flowing of aorta.
As shown in Fig. 1-Figure 10, in the present embodiment, left ventricular assist device also includes and the telecentricity of outer tube 12
The joint 11 that end connects, joint 11 is for connecting with external driver device, according to different external drive dresses
Put and the version of outer tube 12 structural change joint 11, only need to change joint 11, increase left ventricle
The scope of application of auxiliary device, joint 11 is moulding, uses plastics, and joint 11 screw thread is standard Luer
Joint design.Certainly, external driver device can also directly be connected with outer tube 12.
As shown in Fig. 1, Fig. 6, Fig. 8 and Figure 10, in the present embodiment, it is provided that a kind of joint 11 form and
The mounting structure of guidewire lumen 13, joint 11 includes the first branched pipe 111 and the second branched pipe 112, first point
Arm 111 is connected with external driver device；Left ventricular assist device includes guidewire lumen 13, is used for through seal wire,
Under the guide effect of seal wire and guidewire lumen 13, by the sheath at left ventricular assist device femoral artery puncture position
Pipe penetrates aorta, eventually arrives at left ventricle.Guidewire lumen 13 in the present embodiment is through in outer tube 12
Portion, the proximal part of guidewire lumen 13 seals fixing with the proximal part of outer tube 12, and stretches out the proximal part of outer tube 12,
The distal end of guidewire lumen 13 and the end seal of the second branched pipe 112 are fixed, and and ft connection.This lead
The mounting structure stability in silk chamber 13 is high.
The mounting structure of joint 11 form and guidewire lumen 13 is in addition to using said structure, it is also possible to for it
Its structure, as shown in figs. 5 and 9, joint 11 has a branched pipe, directly connects with external driver device
Connect, on the outer wall of the proximal part that guidewire lumen 13 is fixed on outer tube 12, owing to length is shorter, therefore, seal wire
The hardness in chamber 13 self does not interferes with the bending property of whole outer tube 12, can more flexible, wear more quickly
Thorn puts in place, and this guidewire lumen 13 directly can be replaced outside outer tube 12, changes fast and easy.
Both the above guidewire lumen 13 is optimized further, as shown in Fig. 1-Figure 10, the proximal part tool of guidewire lumen 13
The cyclic structure 131 of oriented distal end direction bending, is similar to pigtail shape.Near due to guidewire lumen 13
Heart end is arranged to the cyclic structure 131 of bending, then during guidewire lumen 13 punctures, and the point of guidewire lumen 13
End will not be to tissue, and particularly wall of the heart causes damage.
In the present invention one specific embodiment, as shown in Fig. 1-Figure 10, left ventricular assist device also includes arranging
Development indicating 16 on outer tube 12 and between ventricle section and artery segment, the number of development indicating 16 is excellent
Electing two as, the region between two development indicatings 16 is exactly the stopping penetrating area of left ventricular assist device,
Development indicating 16 is for the piercing process of left ventricular assist device, when left ventricular assist device is through aorta
When entering left ventricle, observe, by development indicating 16, the position that left ventricular assist device arrives, when two show
When shadow indicating 16 is positioned at aortic valve both sides, stops puncturing, left ventricular assist device is fixed, now,
The ventricle section of outer tube 12 enters in left ventricle, and artery segment is positioned in aorta.
As optimization, the material of development indicating 16 is platinumiridio, gold etc., by developing apparatus, such as X
Light, observes the position of development indicating 16.
As Figure 1-Figure 4, in the present embodiment, outer tube 12 is multiple structure, can be three-decker,
Rheoforging, includes internal layer 124, intermediate layer 122 and outer layer 123 the most successively；Internal layer 124 is poly-
Tetrafluoroethylene, has coefficient of friction low, good biocompatibility, the advantage that greasy property is good, no
Can destroy histiocyte, intermediate layer 122 is steel wire or spring, outside keeping in suction and compression process
Pipe 12 is radially the most indeformable, has good radial crush resistance, the most also the forward direction of intensifier can push property
Can, outer layer 123 is nylon layer, such as Pebax55D, has good plasticity so that device is walking around bending
There is during blood vessel good tracking performance and fracture resistance.
Outer tube 12 can also is that double-decker, rheoforging, and internal layer is poly tetrafluoroethylene, and outer layer is Buddhist nun
Dragon, such as Pebax63D.
Additionally, outer tube 12 can also is that single layer structure, as shown in Fig. 6, Fig. 7 and Figure 10, single layer structure is
Metal webmaster.As long as making outer tube have good radial crush resistance and pass through property, other material and structure
Outer tube 12 is equally applicable.
As shown in Fig. 1-Figure 10, in the present embodiment, the angle between ventricle section and the artery segment of outer tube 12
135 °～155 °, more preferably 145 °, according to the position relationship of heart Yu aorta, determine ventricle section
With the angle of artery segment, outer tube 12 can be facilitated to insert in blood vessel.Certainly, according to different cardiac structures
Different angles, not limitation and the scope cited by the present embodiment and numerical value are set.
In the present embodiment, the first suction mesh 125 and the first discharge mesh 121 can pass through laser boring,
Also can directly hole, hole penetrates the tube wall of outer tube 12, impulse-free robustness around hole, prevents from forming little space and coagulating
Blood.
The material discharging section balloon tube 14 can use nylon material, such as PU8AE, holds when being under pressure
Yielding, on similar foley's tube sacculus, punching press is inflatable, and pressure release is collapsible.Pumping stages balloon tube
The material of 15 can use nylon material, is easily deformed when being under pressure.Second sucks mesh 151 and the
Two discharge mesh 141 can pass through laser boring, it is possible to directly hole.
Left ventricular assist device in the present invention is sucked mesh 125 by multiple first on outer tube 12 and is taken out
Inhale the second suction mesh 151 inspiration blood on section balloon tube 15, multiple by discharge on section balloon tube 14
The second multiple first discharge mesh 121 discharged on mesh 141 and outer tube 12 discharge blood, it is ensured that blood
The conveying of big flow, can substitute the cardiac function of normal person completely, and blood directly contains from left ventricle suction
Oxygen blood, to aorta, meets the hematodinamics of human body.
Before left ventricular assist device in the present invention is applicable to heart failure, cardiogenic shock, heart transplantation
Deng auxiliary treatment, and auxiliary Complex Coronary Lesions interventional therapy is it can also be used to the rescue of cardiac arrest.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a left ventricular assist device, it is characterised in that including:
Outer tube (12), described outer tube (12) includes the ventricle section being positioned in left ventricle and is positioned at aorta
In artery segment, the tube wall of described ventricle section offers the first suction mesh (125), described artery segment
Tube wall on offer the first discharge mesh (121), described outer tube (12) one end is closed, and the other end is used
In connection external driver device；
Ventricular side pumping part, is arranged in described ventricle section, when described external driver device is aspirated,
For the blood in left ventricle being incorporated in the tube chamber of described outer tube (12), when described external drive fills
When putting punching press, it is used for stoping the blood in described outer tube (12) to be discharged from described ventricle section；
Discharging section balloon tube (14), its two ends seal and are fixed on the outer wall of described artery segment, described row
Offering the second discharge mesh (141) on the tube wall of the section of going out balloon tube (14), described second discharges mesh
(141) stagger and do not overlap with the described first position discharging mesh (121), when described external drive
During device suction, described discharge section balloon tube (14) sealing paste is combined on the outer wall of described artery segment, when
During described external driver device punching press, the outer wall of described discharge section balloon tube (14) and described artery segment divides
From, form gap.
Left ventricular assist device the most according to claim 1, it is characterised in that described ventricular side is taken out
Inhaling parts is pumping stages balloon tube (15), and its two ends seal and are fixed on the inwall of described ventricle section, institute
Stating and offer the second suction mesh (151) on pumping stages balloon tube (15), described second sucks mesh (151)
Stagger and do not overlap with the described first position sucking mesh (125), when described external driver device is aspirated
Time, described pumping stages balloon tube (15) forms gap, when described outside is driven with the inwall of described ventricle section
During dynamic device punching press, described pumping stages balloon tube (15) sealing paste is combined on the inwall of described ventricle section.
Left ventricular assist device the most according to claim 1, it is characterised in that described ventricular side is aspirated
Parts are to be arranged on described ventricle intrasegmental part and unidirectional between described ventricle section and described artery segment
Valve (18), the one-way conduction direction of described one-way valve (18) is to be pointed to artery segment by ventricle section.
4. according to the left ventricular assist device described in any one of claim 1-3, it is characterised in that also wrap
Including the joint (11) that the distal end with described outer tube (12) is connected, described joint (11) is used for connecting
Described external driver device.
Left ventricular assist device the most according to claim 4, it is characterised in that described joint (11)
Including the first branched pipe (111) and the second branched pipe (112), described first branched pipe (111) and institute
State external driver device to connect；
Also including guidewire lumen (13), guidewire lumen (13) is through the inside of described outer tube (12), institute
The proximal part of the proximal part and described outer tube (12) of stating guidewire lumen (13) seals fixing, and stretches out described
The proximal part of outer tube (12), the distal end of described guidewire lumen (13) and described second branched pipe (112)
End seal fix, and and ft connection.
Left ventricular assist device the most according to claim 4, it is characterised in that also include guidewire lumen
(13), on the outer wall of the proximal part that described guidewire lumen (13) is fixed on described outer tube (12).
7. according to the left ventricular assist device described in claim 5 or 6, it is characterised in that described seal wire
The proximal part in chamber (13) has the cyclic structure (131) to the bending of distal end direction.
8. according to the left ventricular assist device described in any one of claim 1-3, it is characterised in that also wrap
Include the development indicating being arranged on described outer tube (12) above and between described ventricle section and described artery segment
(16)。
9. according to the left ventricular assist device described in any one of claim 1-3, it is characterised in that described
Outer tube (12) is single layer structure, and described single layer structure is metal webmaster；Or, described outer tube is multilamellar
Structure, includes internal layer (124), intermediate layer (122) and outer layer (123) the most successively, described
Internal layer (124) is poly tetrafluoroethylene, and described intermediate layer (122) are steel wire or spring, described outside
Layer (123) is nylon layer.
10. according to the left ventricular assist device described in any one of claim 1-3, it is characterised in that described
Angle between ventricle section and the described artery segment of outer tube (12) 135 °～155 °.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468040.9A CN104174078B (en) | 2014-09-15 | 2014-09-15 | A kind of left ventricular assist device |
| US15/022,801 US9981078B2 (en) | 2014-09-15 | 2014-09-28 | Left ventricular assist device |
| PCT/CN2014/087651 WO2016041220A1 (en) | 2014-09-15 | 2014-09-28 | Left ventricle assist device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468040.9A CN104174078B (en) | 2014-09-15 | 2014-09-15 | A kind of left ventricular assist device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104174078A CN104174078A (en) | 2014-12-03 |
| CN104174078B true CN104174078B (en) | 2016-09-21 |
Family
ID=51955601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410468040.9A Active CN104174078B (en) | 2014-09-15 | 2014-09-15 | A kind of left ventricular assist device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104174078B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876217A (en) * | 2019-01-29 | 2019-06-14 | 哈尔滨工业大学（深圳） | Ventricular assist device line outlet waterproof construction |
| CN110974349B (en) * | 2019-11-25 | 2022-08-02 | 湖南瑞康通科技发展有限公司 | Bolt taking device and bolt taking assembly |
| CN112843463A (en) * | 2019-11-28 | 2021-05-28 | 丁海雁 | Artery blood circulation pipeline assembly and artificial artery blood extracorporeal circulation system |
| CN114681788B (en) * | 2022-03-29 | 2023-08-29 | 南方医科大学珠江医院 | Heart auxiliary circulation device and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504662A (en) * | 1967-05-16 | 1970-04-07 | Avco Corp | Intra-arterial blood pump |
| US3692018A (en) * | 1970-02-11 | 1972-09-19 | Robert H Goetz | Cardiac assistance device |
| US4301797A (en) * | 1977-05-12 | 1981-11-24 | Pollack Charles N | Balloon-tipped extracorporeal cannula apparatus and method for insertion of same |
| CN204147329U (en) * | 2014-09-15 | 2015-02-11 | 湖南埃普特医疗器械有限公司 | A kind of left ventricular assist device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592184A (en) * | 1969-12-16 | 1971-07-13 | David H Watkins | Heart assist method and catheter |
| US4014317A (en) * | 1972-02-18 | 1977-03-29 | The United States Of America As Represented By The Department Of Health, Education And Welfare | Multipurpose cardiocirculatory assist cannula and methods of use thereof |
| US4861330A (en) * | 1987-03-12 | 1989-08-29 | Gene Voss | Cardiac assist device and method |
| US6007479A (en) * | 1996-07-08 | 1999-12-28 | H.D.S. Systems Ltd. | Heart assist system and method |
| US5928132A (en) * | 1998-03-31 | 1999-07-27 | Datascope Investment Corp. | Closed chest intra-aortic balloon based ventricular assist device |
| US6136025A (en) * | 1999-07-27 | 2000-10-24 | Barbut; Denise R. | Endoscopic arterial pumps for treatment of cardiac insufficiency and venous pumps for right-sided cardiac support |
| US7914436B1 (en) * | 2006-06-12 | 2011-03-29 | Abiomed, Inc. | Method and apparatus for pumping blood |
| CN102488955B (en) * | 2011-12-07 | 2013-06-05 | 湖南埃普特医疗器械有限公司 | Balloon guide catheter, and preparation method thereof |
-
2014
- 2014-09-15 CN CN201410468040.9A patent/CN104174078B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504662A (en) * | 1967-05-16 | 1970-04-07 | Avco Corp | Intra-arterial blood pump |
| US3692018A (en) * | 1970-02-11 | 1972-09-19 | Robert H Goetz | Cardiac assistance device |
| US4301797A (en) * | 1977-05-12 | 1981-11-24 | Pollack Charles N | Balloon-tipped extracorporeal cannula apparatus and method for insertion of same |
| CN204147329U (en) * | 2014-09-15 | 2015-02-11 | 湖南埃普特医疗器械有限公司 | A kind of left ventricular assist device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104174078A (en) | 2014-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9981078B2 (en) | Left ventricular assist device | |
| CN204147329U (en) | A kind of left ventricular assist device | |
| EP2195043B1 (en) | Intraatrial ventricular assist device | |
| CN104174078B (en) | A kind of left ventricular assist device | |
| CN105498002A (en) | Blood pumping impeller | |
| US10307575B2 (en) | Antegrade hemodynamic support | |
| CN107106206A (en) | Self sealss sleeve pipe | |
| CN110665079B (en) | Left ventricle auxiliary device of percutaneous intervention | |
| CN109939282A (en) | A kind of percutaneous Left heart assistanee system | |
| CN107684659A (en) | ECMO is intubated with two-chamber diplocardia room | |
| JP2001523529A (en) | Cardiac assist system with cannula pump | |
| CN114177515A (en) | External left ventricle auxiliary device | |
| WO2018133175A1 (en) | Slidable multi-lumen drainage tube | |
| CN117085241A (en) | External pulse type minimally invasive interventional ventricular mechanical auxiliary device | |
| CN106075619A (en) | A kind of Coronary vein blood flow drainage device | |
| CN111971081A (en) | Cannula system and method for cardiac volume reduction | |
| US11951296B2 (en) | Device for the ventricular emergency support | |
| CN210131233U (en) | Percutaneous left heart drainage tube | |
| CN107567339A (en) | Casing bit, artificial lung | |
| CN207136838U (en) | Left room pulmonary artery central vein combines pressure catheter | |
| TWI656890B (en) | Extracorporeal life support system | |
| CN217015039U (en) | Transfemoral vein left atrium drainage tube | |
| US20220280768A1 (en) | Cannula for Endovascular Blood Circuit Support, Corresponding Assembly, Method and Cannula System | |
| CN109316641A (en) | A kind of artificial heart device | |
| US20220305250A1 (en) | Cannula System Comprising Two Cannulas and Corresponding Method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151231 Address after: 510110, room 1, No. 707, compound 91, Dongchuan Road, Dongshan District, Guangdong, Guangzhou Applicant after: Jin Lijun Applicant after: Hunan Aipute Medical Equipment Co., Ltd. Address before: 411400 Xiangxiang Road, Xiangxiang Economic Development Zone, Hunan, China, No. 009, No. Applicant before: Hunan Aipute Medical Equipment Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |