CN104174078A - Left ventricle auxiliary device - Google Patents
Left ventricle auxiliary device Download PDFInfo
- Publication number
- CN104174078A CN104174078A CN201410468040.9A CN201410468040A CN104174078A CN 104174078 A CN104174078 A CN 104174078A CN 201410468040 A CN201410468040 A CN 201410468040A CN 104174078 A CN104174078 A CN 104174078A
- Authority
- CN
- China
- Prior art keywords
- ventricle
- outer tube
- tube
- section
- 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.)
- Granted
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
The invention discloses a left ventricle auxiliary device. The left ventricle auxiliary device comprises an outer tube, a ventricle side suction component and a discharging section sacculus tube, wherein the outer tube comprises a ventricle section located in the left ventricle and an artery section located in the aorta, first suction meshes are formed in the ventricle section, first discharge meshes are formed in the artery section, and the outer tube is communicated with an external driving device; the ventricle side suction component is arranged in the ventricle section; the two ends of the discharging section sacculus tube are sealed and fixed to the outer wall of the artery section in a sleeved mode, and second discharge meshes are formed in the discharging section sacculus tube, are staggered with the first discharge meshes in position and do not overlap with the first discharge meshes. According to the left ventricle auxiliary device, through suction and pressing of the external driving device, blood is sucked into the outer tube from the left ventricle through the ventricle side suction component, the blood is discharged from the outer tube to the aorta through the discharging section sacculus tube to achieve one cycle, and the blood in the left ventricle is pumped into the aorta. The left ventricle auxiliary device is simple in structure and high in reliability and does not destroy blood cells, and wounds of the body tissues are small.
Description
Technical field
The present invention relates to interventional medical device technical field, particularly a kind of left ventricular assist device.
Background technology
In recent years, cardiovascular disease incidence rate increases.According to World Health Organization's investigation, at present, cardiovascular disease accounts for 30% left and right of all diseases, estimate that the year two thousand twenty cardiovascular disease will account for 40% of all diseases, wherein, numerous diseases finally has influence on left ventricular function, causes the left ventricular function such as left ventricular insufficiency, cardiogenic shock disease.
For left ventricular function disease, Chinese scholars proposes new method, and left ventricular assist device (Left ventricular assist devices, english abbreviation is LVAD) is for left heart insufficiency patient, by left ventricular blood liquid drainage to aorta, thereby circulatory support is provided.LVAD is divided into the other type of embedded type and body by whether implanting; Be divided into jerk type and axial flow type by blood flow form.
Traditional left ventricular assist device is to implant by surgical operation, and by punching on left ventricle and aorta, centre arranges pump, sets up passage.
It is large that surgical operation is implanted wound, at present, the more percutaneous left ventricular assist device of clinical practice mainly contains ECMO system (Extracorporeal membrane oxygenation, english abbreviation is Ecmo), intra aortic balloon counterpulsation (intra-aortic balloon counter pulsation, english abbreviation is IABP), Tandem Heart percutaneous left ventricular assist device and Impella ventricle auxiliary system.Ecmo system is in aorta and cardinal vein, to implant respectively two conduits, conduit in cardinal vein connects external artificial lung, external artificial lung connects axial-flow pump or jerk pump, connect again the conduit in aorta, shortcoming is to set up to need external artificial lung, complex structure, and pulmonary circulation is interrupted, easily cause lung Intravascular Thrombus to form, and easy massive hemorrhage.After Intra-aortic Balloon Pump is to get involved a long ball capsule at aorta, and sacculus, along with heartbeat charge, exhaust, strengthens blood supply of cardiac muscle, and shortcoming is the function that depends on ventricle, job insecurity.Tandem Heart system is by forming to the effuser of left ventricle to the inflow pipe of left atrium, external central pump, femoral artery puncture through femoral venous puncture, set up left atrium to femoral artery drainage channel, shortcoming is to have two place's wounds large, and complicated operation, needs atrial septal puncture.Impella system is made up of to the conduit of left ventricle femoral artery puncture, catheter proximal end has the blood flow entrance of cage shape, be positioned at ascending aorta and have flow export, between inflow entrance and flow export, there is axial-flow pump, by left ventricular blood liquid drainage to aorta, shortcoming is the rotating speed that flow depends on pump, and high speed rotating blade may destroy erythrocyte etc.
In sum, complete under the prerequisite of left ventricle miscellaneous function, how to solve existing left ventricular assist device structure and complicated operation, job insecurity, the problem large to human tissue cell's wound, becomes those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of left ventricular assist device, completing under the prerequisite of left ventricle miscellaneous function, with simplified structure and operation, improve functional reliability, reduce the wound to tissue and cell.
For achieving the above object, the invention provides following technical scheme:
A kind of left ventricular assist device, comprising:
Outer tube, described outer tube comprises the ventricle section that is arranged in left ventricle and the artery segment that is arranged in aorta, offers the first suction mesh on the tube wall of described ventricle section, offers the first discharge mesh on the tube wall of described artery segment, the sealing of described outer tube one end, the other end is used for being communicated with external driver device;
Ventricular side pumping part, be arranged in described ventricle section, in the time of described external driver device suction, for the blood of left ventricle being incorporated in the tube chamber of described outer tube, in the time of described external driver device punching press, discharge from described ventricle section for the blood that stops described outer tube;
Discharge section balloon tube, on its sealed at both ends outer wall that is fixed in described artery segment, on described tube wall of discharging section balloon tube, offer the second discharge mesh, stagger and do not overlap in the described second position of discharging mesh and described the first discharge mesh, in the time of described external driver device suction, described discharge section balloon tube sealing paste is combined on the outer wall of described artery segment, in the time of described external driver device punching press, described exhaust section balloon tube 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 balloon tube, on its sealed at both ends inwall that is fixed on described ventricle section, on described pumping stages balloon tube, offer the second suction mesh, stagger and do not overlap in the described second position that sucks mesh and described the first suction mesh, described pumping stages balloon tube is ductile material, in the time of described external driver device suction, the inwall of described pumping stages balloon tube and described ventricle section forms gap, in the time of described external driver device punching press, described pumping stages balloon tube sealing paste is combined on the inwall of described ventricle section.
Preferably, in above-mentioned left ventricular assist device, described ventricular side pumping part is to be arranged on described ventricle intrasegmental part and the one-way valve between described ventricle section and described artery segment, and the one-way conduction direction of described one-way valve is to point to artery segment by ventricle section.
Preferably, in above-mentioned left ventricular assist device, also comprise the joint being connected with the distal end of described outer tube, described joint is used for connecting described external driver device.
Preferably, in above-mentioned left ventricular assist device, described joint comprises the first branched pipe and the second branched pipe, and described the first branched pipe is connected with described external driver device;
Also comprise guidewire lumen, guidewire lumen is through the inside of described outer tube, and the proximal part of described guidewire lumen and the sealing of the proximal part of described outer tube are fixing, and stretches out the proximal part of described outer tube, the end seal of the distal end of described guidewire lumen and described the second branched pipe is fixed, and is communicated with outside.
Preferably, in above-mentioned left ventricular assist device, also comprise guidewire lumen, described guidewire lumen is fixed on the outer wall of proximal part of described outer tube.
Preferably, in above-mentioned left ventricular assist device, the proximal part of described guidewire lumen has to the cyclic structure of distal end direction bending.
Preferably, in above-mentioned left ventricular assist device, also comprise the development indicating being arranged on described outer tube and between described ventricle section and described artery segment.
Preferably, in above-mentioned left ventricular assist device, described outer tube is single layer structure, and described single layer structure is metal webmaster; Or described outer tube is multiple structure, comprise successively that from the inside to the outside internal layer, described internal layer are poly tetrafluoroethylene, intermediate layer and skin, described intermediate layer is steel wire or spring, described skin is nylon layer.
Preferably, in above-mentioned left ventricular assist device, 135 °～155 ° of the angles between ventricle section and the described artery segment of described outer tube.
Compared with prior art, the invention has the beneficial effects as follows:
In left ventricular assist device provided by the invention, ventricular side pumping part is arranged in the ventricle section of outer tube, discharges on the outer wall of the sealed at both ends artery segment that is enclosed within outer tube of section balloon tube.Left ventricular assist device is punctured in heart, make the ventricle section of outer tube be arranged in left ventricle, the artery segment of outer tube is arranged in aorta, ventricle section and artery segment are separated by left ventricle and the aortic valve between aorta, the complementary interference, when work, in the time that external driver device is aspirated, in outer tube, form negative pressure, under suction function, discharging section balloon tube is adsorbed on the outer wall that is fitted in artery segment, due to the second discharge mesh and first, to discharge the position of mesh staggered and do not overlap, therefore, discharging section balloon tube seals the discharge of first on artery segment mesh, the artery segment of outer tube is not communicated with aorta, meanwhile, ventricular side pumping part is under the swabbing action of external driver device, blood in left ventricle is aspirated to the ventricular side that enters outer tube, and enter in the whole tube chamber of outer tube, afterwards, when external driver device is in outer tube when punching press, ventricular side pumping part stop blood in outer tube from ventricle section discharged to left ventricle, meanwhile, under punching press effect, discharge the disengaging of section balloon tube and fit with the sealing of artery segment, form circulation gap between the two, first discharges mesh and second discharges mesh conducting, and blood enters aorta from the artery segment of outer tube.Suction and punching course by external driver device are realized a circulation, and the blood pump in left ventricle is entered to aorta.Left ventricular assist device of the present invention does not need to arrange the parts such as artificial lung, simple in structure, can not quit work because of the interruption of pulmonary circulation, reliability strengthens, and only need on health, offer a puncturing hole, little to systemic wound, and can hemocyte not produced and be destroyed.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
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 A in Fig. 1 is to partial schematic diagram;
Fig. 3 is the ventricle section of outer tube and the structural representation of pumping stages balloon tube of the left ventricular assist device in Fig. 1;
Fig. 4 is the artery segment and the structural representation of discharging section balloon tube of the outer tube of the left ventricular assist device in Fig. 1;
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 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 is that joint, 111 is that the first branched pipe, 112 is that the second branched pipe, 12 is that outer tube, 121 is that the first discharge mesh, 122 is that intermediate layer, 123 is that skin, 124 is that internal layer, 125 is that the first suction mesh, 13 is that guidewire lumen, 131 is that cyclic structure, 14 is that discharge balloon tube, 141 is that the second discharge mesh, 15 is that pumping stages balloon tube, 151 is that the second suction mesh, 16 is that development indicating, 18 is one-way valve.
Detailed description of the invention
Core of the present invention has been to provide a kind of left ventricular assist device, completes under the prerequisite of left ventricle miscellaneous function, simplifies the structure and operates, and has improved functional reliability, has reduced the wound to tissue and cell.
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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1-Figure 10, the embodiment of the present invention provides a kind of left ventricular assist device, comprises outer tube 12, ventricular side pumping part and discharges section balloon tube 14.Wherein, outer tube 12 comprises ventricle section and artery segment, and ventricle section and artery segment are adjacent, and outer tube 12 is harder, has good radial crush resistance energy, and when use, ventricle section is positioned at left ventricle, and artery segment is positioned at aorta, on the tube wall of ventricle section, offer the first suction mesh 125, on artery segment, offer the first discharge mesh 121, and one end of outer tube 12 sealing, the other end is used for being communicated with external driver device, and external driver device provides suction force and stamping press, ventricular side pumping part is arranged in ventricle section, in the time that external driver device is aspirated, ventricular side pumping part is incorporated into the blood in left ventricle in the tube chamber of outer tube 12, in the time of external driver device punching press, ventricular side pumping part stop blood in outer tube from ventricle section discharged to left ventricle, discharge on the sealed at both ends outer wall that is fixed in artery segment of section balloon tube 14, the first discharge mesh 121 is all covered and discharged in section balloon tube 14, and offer the second discharge mesh 141 on the tube wall of discharge section balloon tube 14, second to discharge mesh 141 staggered and do not overlap with the position of the first discharge mesh 121, discharging section balloon tube 14 is made up of the good medical material of tensile property, very thin, very soft, in the time that external driver device is aspirated, discharging section balloon tube 14 shrinks, sealing paste is combined on the outer wall of artery segment, first discharges mesh 121 and second discharges mesh 141 not conductings, in the time of external driver device punching press, discharging section balloon tube 14 expands, depart from laminating with the outer wall of artery segment, form gap, first discharges mesh 121 and second discharges mesh 141 conductings.
Work process and the operation principle of above-mentioned left ventricular assist device are: when operation, use heparin saline flusher, and aerofluxus, outer tube 12 is communicated with external driver device, the cavity heparin saline that external driver device is connected with outer tube 12 inner chambers rinses, and fills heparin saline, aerofluxus.Complete after the work that operation is necessary, the sheath pipe at seal wire femoral artery puncture position is penetrated to aorta, the final left ventricle that arrives, make the ventricle section of outer tube 12 be arranged in left ventricle, the artery segment of outer tube 12 is arranged in aorta, and ventricle section and artery segment are separated by left ventricle and the aortic valve between aorta.When work, in the time that external driver device is aspirated, the interior formation negative pressure of outer tube 12, under suction function, discharge section balloon tube 14 and be adsorbed contraction, be fitted on the outer wall of artery segment, due to the second discharge mesh 141 and first, to discharge the position of mesh 121 staggered and do not overlap, therefore, discharging section balloon tube 14 seals the discharge of first on artery segment mesh 121, first discharges mesh 121 and second discharges mesh 141 not conductings, the artery segment of outer tube 12 is not communicated with aorta, blood in aorta can not enter in outer tube 12, meanwhile, ventricular side pumping part is under the swabbing action of external driver device, blood suction in left ventricle is entered in the ventricle section of outer tube 12, and enter in the whole tube chamber of outer tube 12 and in the cavity of external driver device, this process has completed blood enters outer tube 12 operation from left ventricle, afterwards, external driver device is carried out punching press in outer tube 12, ventricular side pumping part stop blood in outer tube 12 from ventricle section discharged to left ventricle, meanwhile, under punching press effect, discharging section balloon tube 14 expands, its tube wall departs from the outer wall sealing laminating with artery segment, forms circulation gap between the two, and first discharges mesh 121 and second discharges mesh 141 conductings, blood enters aorta from the artery segment of outer tube 12, and this process completes blood and enters aortal operation from outer tube 12.Suction and punching course by external driver device are realized a circulation, and the blood pump in left ventricle is entered to aorta.
Can find out, left ventricular assist device of the present invention does not need to arrange the parts such as artificial lung, simple in structure, can not quit work because of the interruption of pulmonary circulation, reliability strengthens, and only need on health, offer a puncturing hole, little to systemic wound, and can hemocyte not produced and be destroyed.And external driver device can be aspirated and the adjusting of punching press frequency according to the actual pulse frequency of human body, realizes Frequency Synchronization, thereby realizes the miscellaneous function of left ventricle.
As shown in Fig. 1-Fig. 7, in the present invention's one specific embodiment, ventricular side pumping part is pumping stages balloon tube 15, be arranged on ventricle intrasegmental part, on the sealed at both ends inwall that is fixed on ventricle section, the first suction mesh 125 is covered in pumping stages balloon tube 14, on pumping stages balloon tube 15, offer the second suction mesh 151, second to suck mesh 151 staggered and do not overlap with the position of the first suction mesh 125, pumping stages balloon tube 15 is made up of the good medical material of tensile property, equally very thin very soft, concrete structure is referring to Fig. 3.
Pumping stages balloon tube 15 is in the time of work, in the time that external driver device is aspirated, the inner negative pressure that forms of outer tube 12, pumping stages balloon tube 15 shrinks under the swabbing action of negative pressure, shrinkage factor is greater than the shrinkage factor of outer tube 12, between pumping stages balloon tube 15 and the inwall of ventricle section, form circulation gap, first sucks mesh 125 and second sucks mesh 151 conductings, now, blood sucks in ventricle section from left ventricle, and flow into whole outer tube 12 tube chambers and external driver device, in the time of external driver device punching press, pumping stages balloon tube 15 expands, sealing paste is combined on the inwall of ventricle section, first sucks mesh 125 and second sucks mesh 151 not conductings, blood in outer tube 12 can be by the pumping stages balloon tube 15 of ventricle section discharged to left ventricle.
As Figure 8-Figure 10, in the present invention's one specific embodiment, ventricular side pumping part or for being arranged on ventricle intrasegmental part and the one-way valve between ventricle section and artery segment 18, the one-way conduction direction of one-way valve 18 be by ventricle section sensing artery segment.
Adopt operation principle and the work process of the ventricular side pumping part of one-way valve 18 to be: in the time that external driver device is aspirated, the interior formation negative pressure of outer tube 12, blood sucks mesh 125 by first in ventricle section and is inhaled into ventricle section, and under the effect of suction force, the blood that enters ventricle section enters artery segment by the one-way valve 18 being arranged between ventricle section and artery segment, and in the cavity of flow through whole outer tube 12 and external driver device, in the time of external driver device punching press, because one-way valve 18 has one-way conduction performance, only allow blood to circulate to artery segment from ventricle section, therefore, blood is stoped and flows to ventricle section by one-way valve 18, blood can not return to left ventricle from ventricle section, and can only be from discharging section balloon tube 14 discharged to aorta, completing blood is flowed to aortal by left ventricle.
As shown in Fig. 1-Figure 10, in the present embodiment, left ventricular assist device also comprises the joint 11 being connected with the distal end of outer tube 12, joint 11, for being connected with external driver device, according to the version of different external driver device and outer tube 12 structural change joints 11, only needs to change joint 11, increase the scope of application of left ventricular assist device, joint 11 is moulding, adopts plastics, and joint 11 screw threads are 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, provide the mounting structure of a kind of joint 11 forms and guidewire lumen 13, joint 11 comprises that the first branched pipe 111 and the second branched pipe 112, the first branched pipes 111 are connected with external driver device; Left ventricular assist device comprises guidewire lumen 13, for through seal wire, under the guide effect of seal wire and guidewire lumen 13, the sheath pipe at left ventricular assist device femoral artery puncture position is penetrated to aorta, finally arrives left ventricle.Guidewire lumen 13 in the present embodiment is through the inside of outer tube 12, the proximal part sealing of the proximal part of guidewire lumen 13 and outer tube 12 is fixing, and stretching out the proximal part of outer tube 12, the end seal of the distal end of guidewire lumen 13 and the second branched pipe 112 is fixed, and is communicated with outside.The mounting structure stability of this guidewire lumen 13 is high.
The mounting structure of joint 11 forms and guidewire lumen 13 is except adopting said structure, it can also be other structure, as shown in Fig. 5 and Fig. 9, joint 11 has a branched pipe, directly be connected with external driver device, guidewire lumen 13 is fixed on the outer wall of proximal part of outer tube 12, because length is shorter, therefore, the hardness of guidewire lumen 13 self can not affect the bending property of whole outer tube 12, can be more flexibly, puncture more quickly puts in place, and this guidewire lumen 13 can directly change outer tube 12 is outer, changes fast and easy.
Above two kinds of guidewire lumen 13 are further optimized, and as shown in Fig. 1-Figure 10, the proximal part of guidewire lumen 13 has to the cyclic structure 131 of distal end direction bending, is similar to pigtail shape.Because the proximal part of guidewire lumen 13 is arranged to bending cyclic structure 131, in the process puncturing in guidewire lumen 13, the tip of guidewire lumen 13 can be to tissue, and particularly wall of the heart causes damage.
In the present invention's one specific embodiment, as shown in Fig. 1-Figure 10, left ventricular assist device also comprises the development indicating 16 being arranged on outer tube 12 and between ventricle section and artery segment, the number of development indicating 16 is preferably two, region between two development indicatings 16 is exactly the region of puncturing that stops of left ventricular assist device, development indicating 16 is for the piercing process of left ventricular assist device, in the time that left ventricular assist device enters left ventricle through aorta, observe by development indicating 16 position that left ventricular assist device arrives, in the time that two development indicatings 16 are positioned at aortic valve both sides, stop puncture, left ventricular assist device is fixed, now, the ventricle section of outer tube 12 enters into left ventricle, and artery segment is arranged in aorta.
As optimization, the material of development indicating 16 is platinumiridio, gold etc., by developing apparatus, as X-ray, 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, and rheoforging comprises internal layer 124, intermediate layer 122 and outer 123 from the inside to the outside successively; Internal layer 124 is poly tetrafluoroethylene, there is coefficient of friction low, good biocompatibility, the advantage that greasy property is good, can disorganize cell, intermediate layer 122 is steel wire or spring, in suction and compression process, can keep outer tube 12 radially indeformable, there is good radial crush resistance, forward direction that simultaneously also can intensifier pushes performance, and outer 123 is nylon layer, as Pebax55D, there is good plasticity, make device in the time walking around curved blood vessel, there is good tracking performance and fracture resistance.
Outer tube 12 can also be double-decker, rheoforging, and internal layer is poly tetrafluoroethylene, skin is nylon, as Pebax63D.
In addition, outer tube 12 can also be single layer structure, and as shown in Fig. 6, Fig. 7 and Figure 10, single layer structure is metal webmaster.As long as make outer tube have good radial crush resistance and trafficability characteristic, the outer tube 12 of other material and structure is applicable equally.
As shown in Fig. 1-Figure 10, in the present embodiment, 135 °～155 ° of the angles between ventricle section and the artery segment of outer tube 12, more preferably 145 °, according to heart and aortal position relationship, determine the angle of ventricle section and artery segment, can facilitate outer tube 12 to insert in blood vessel.Certainly, according to different cardiac structures, different angles is set, does not limit to the scope cited with the present embodiment and numerical value.
In the present embodiment, the first suction mesh 125 and first is discharged mesh 121 and can, by laser boring, also can directly be holed, and hole penetrates the tube wall of outer tube 12, and hole, around without burr, prevents from forming little space and blood coagulation.
The material of discharging section balloon tube 14 can adopt nylon material, as PU8AE, in the time being under pressure, is easily out of shape, and the sacculus on similar foley's tube, punching press is inflatable, and pressure release is collapsible.The material of pumping stages balloon tube 15 can adopt nylon material, in the time being under pressure, is easily out of shape.The second suction mesh 151 and second is discharged mesh 141 and can, by laser boring, also can directly be holed.
Left ventricular assist device in the present invention sucks second on mesh 125 and pumping stages balloon tube 15 by multiple first on outer tube 12 and sucks mesh 151 inspiration blood, discharge blood by multiple first discharge mesh 121 of discharging on multiple the second discharge mesh 141 and the outer tube 12 on section balloon tube 14, the large flow that has ensured blood is carried, can substitute normal person's cardiac function completely, and blood directly, from left ventricle suction Oxygenated blood to aorta, meets the hematodinamics of human body.
The auxiliary treatment such as the left ventricular assist device in the present invention is applicable to before heart failure, cardiogenic shock, heart transplantation, and auxiliary Complex Coronary Lesions interventional therapy, also can be used for the rescue of cardiac arrest.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a left ventricular assist device, is characterized in that, comprising:
Outer tube (12), described outer tube (12) comprises the ventricle section that is arranged in left ventricle and the artery segment that is arranged in aorta, on the tube wall of described ventricle section, offer the first suction mesh (125), on the tube wall of described artery segment, offer the first discharge mesh (121), the sealing of described outer tube (12) one end, the other end is used for being communicated with external driver device;
Ventricular side pumping part, be arranged in described ventricle section, in the time of described external driver device suction, for the blood of left ventricle is incorporated in the tube chamber of described outer tube (12), in the time of described external driver device punching press, discharge from described ventricle section for the blood that stops described outer tube (12);
Discharge section balloon tube (14), on its sealed at both ends outer wall that is fixed in described artery segment, on described tube wall of discharging section balloon tube (14), offer the second discharge mesh (141), described second discharges mesh (141) staggers and does not overlap with the described first position of discharging mesh (121), in the time of described external driver device suction, described discharge section balloon tube (14) sealing paste is combined on the outer wall of described artery segment, in the time of described external driver device punching press, described exhaust section balloon tube (14) separates with the outer wall of described artery segment, form gap.
2. left ventricular assist device according to claim 1, it is characterized in that, described ventricular side pumping part is pumping stages balloon tube (15), on its sealed at both ends inwall that is fixed on described ventricle section, on described pumping stages balloon tube (15), offer the second suction mesh (151), described second sucks mesh (151) staggers and does not overlap with the described first position that sucks mesh (125), in the time of described external driver device suction, described pumping stages balloon tube (15) forms gap with the inwall of described ventricle section, in the time of described external driver device punching press, described pumping stages balloon tube (15) sealing paste is combined on the inwall of described ventricle section.
3. left ventricular assist device according to claim 1, it is characterized in that, described ventricular side pumping part is to be arranged on described ventricle intrasegmental part and the one-way valve (18) between described ventricle section and described artery segment, and the one-way conduction direction of described one-way valve (18) is to point to artery segment by ventricle section.
4. according to the left ventricular assist device described in claim 1-3 any one, it is characterized in that, also comprise the joint (11) being connected with the distal end of described outer tube (12), described joint (11) is for connecting described external driver device.
5. left ventricular assist device according to claim 4, it is characterized in that, described joint (11) comprises the first branched pipe (111) and the second branched pipe (112), and described the first branched pipe (111) is connected with described external driver device;
Also comprise guidewire lumen (13), guidewire lumen (13) is through the inside of described outer tube (12), the proximal part sealing of the proximal part of described guidewire lumen (13) and described outer tube (12) is fixing, and stretch out the proximal part of described outer tube (12), the end seal of the distal end of described guidewire lumen (13) and described the second branched pipe (112) is fixed, and is communicated with outside.
6. left ventricular assist device according to claim 4, is characterized in that, also comprises guidewire lumen (13), and described guidewire lumen (13) is fixed on the outer wall of proximal part of described outer tube (12).
7. according to the left ventricular assist device described in claim 5 or 6, it is characterized in that, the proximal part of described guidewire lumen (13) has the cyclic structure (131) to the bending of distal end direction.
8. according to the left ventricular assist device described in claim 1-3 any one, it is characterized in that, also comprise and be arranged on the development indicating (16) of described outer tube (12) above and between described ventricle section and described artery segment.
9. according to the left ventricular assist device described in claim 1-3 any one, it is characterized in that, described outer tube (12) is single layer structure, and described single layer structure is metal webmaster; Or, described outer tube is multiple structure, comprise successively from the inside to the outside internal layer (124), intermediate layer (122) and outer (123), described internal layer (124) is poly tetrafluoroethylene, described intermediate layer (122) is steel wire or spring, and described skin (123) is nylon layer.
10. according to the left ventricular assist device described in claim 1-3 any one, it is characterized in that 135 °～155 ° of the angles between ventricle section and the described artery segment of described outer tube (12).
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 true CN104174078A (en) | 2014-12-03 |
| CN104174078B 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) |
Cited By (6)
| 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 |
| CN110124133A (en) * | 2019-05-13 | 2019-08-16 | 青岛大学附属医院 | A kind of refractory heart failure left ventricular function auxiliary device |
| CN110974349A (en) * | 2019-11-25 | 2020-04-10 | 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 |
| CN114681788A (en) * | 2022-03-29 | 2022-07-01 | 南方医科大学珠江医院 | Heart auxiliary circulation device and control method thereof |
| CN110124133B (en) * | 2019-05-13 | 2024-04-26 | 青岛大学附属医院 | Intractable heart failure left ventricle function auxiliary device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504662A (en) * | 1967-05-16 | 1970-04-07 | Avco Corp | Intra-arterial blood pump |
| US3592184A (en) * | 1969-12-16 | 1971-07-13 | David H Watkins | Heart assist method and catheter |
| US3692018A (en) * | 1970-02-11 | 1972-09-19 | Robert H Goetz | Cardiac assistance device |
| 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 |
| US4301797A (en) * | 1977-05-12 | 1981-11-24 | Pollack Charles N | Balloon-tipped extracorporeal cannula apparatus and method for insertion of same |
| US4861330A (en) * | 1987-03-12 | 1989-08-29 | Gene Voss | Cardiac assist device and method |
| US5928132A (en) * | 1998-03-31 | 1999-07-27 | Datascope Investment Corp. | Closed chest intra-aortic balloon based ventricular assist device |
| US6132364A (en) * | 1995-07-10 | 2000-10-17 | H.D.S. Systems, Ltd. | Heart assist system and method |
| 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 |
| US20120053392A1 (en) * | 2006-06-12 | 2012-03-01 | Abiomed, Inc. | Method and apparatus for pumping blood |
| CN102488955A (en) * | 2011-12-07 | 2012-06-13 | 湖南埃普特医疗器械有限公司 | Balloon guide catheter, and preparation method thereof |
| 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 |
-
2014
- 2014-09-15 CN CN201410468040.9A patent/CN104174078B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3504662A (en) * | 1967-05-16 | 1970-04-07 | Avco Corp | Intra-arterial blood pump |
| US3592184A (en) * | 1969-12-16 | 1971-07-13 | David H Watkins | Heart assist method and catheter |
| US3692018A (en) * | 1970-02-11 | 1972-09-19 | Robert H Goetz | Cardiac assistance device |
| 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 |
| US4301797A (en) * | 1977-05-12 | 1981-11-24 | Pollack Charles N | Balloon-tipped extracorporeal cannula apparatus and method for insertion of same |
| US4861330A (en) * | 1987-03-12 | 1989-08-29 | Gene Voss | Cardiac assist device and method |
| US6132364A (en) * | 1995-07-10 | 2000-10-17 | 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 |
| US20120053392A1 (en) * | 2006-06-12 | 2012-03-01 | Abiomed, Inc. | Method and apparatus for pumping blood |
| CN102488955A (en) * | 2011-12-07 | 2012-06-13 | 湖南埃普特医疗器械有限公司 | Balloon guide catheter, and preparation method thereof |
| 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 |
Cited By (7)
| 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 |
| CN110124133A (en) * | 2019-05-13 | 2019-08-16 | 青岛大学附属医院 | A kind of refractory heart failure left ventricular function auxiliary device |
| CN110124133B (en) * | 2019-05-13 | 2024-04-26 | 青岛大学附属医院 | Intractable heart failure left ventricle function auxiliary device |
| CN110974349A (en) * | 2019-11-25 | 2020-04-10 | 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 |
| CN114681788A (en) * | 2022-03-29 | 2022-07-01 | 南方医科大学珠江医院 | Heart auxiliary circulation device and control method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104174078B (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9981078B2 (en) | Left ventricular assist device | |
| EP2195043B1 (en) | Intraatrial ventricular assist device | |
| JP2830440B2 (en) | Cannula | |
| US11285254B2 (en) | Extracorporeal life support system | |
| CN204147329U (en) | A kind of left ventricular assist device | |
| US20110230821A1 (en) | Manual assembly for cardio-circulatory resuscitation | |
| EP1839600A1 (en) | Expandable conduit-guide | |
| CN110665079B (en) | Left ventricle auxiliary device of percutaneous intervention | |
| CN104174078B (en) | A kind of left ventricular assist device | |
| WO2012123366A1 (en) | A therapeutic and surgical treatment method for providing circulatory assistance | |
| CN107684659A (en) | ECMO is intubated with two-chamber diplocardia room | |
| CN114177515A (en) | External left ventricle auxiliary device | |
| WO2011119060A2 (en) | Manual assembly for cardio-circulatory resuscitation | |
| WO2018133175A1 (en) | Slidable multi-lumen drainage tube | |
| CN102553058B (en) | Reverse arterial intubation tube | |
| CN111971081A (en) | Cannula system and method for cardiac volume reduction | |
| US11951296B2 (en) | Device for the ventricular emergency support | |
| CN211132392U (en) | Percutaneous left heart drainage tube | |
| TWI656890B (en) | Extracorporeal life support system | |
| CN207136838U (en) | Left room pulmonary artery central vein combines pressure catheter | |
| CN217015039U (en) | Transfemoral vein left atrium drainage tube | |
| US20220280768A1 (en) | Cannula for Endovascular Blood Circuit Support, Corresponding Assembly, Method and Cannula System | |
| CN217187391U (en) | Flat bipolar venous cannula for extracorporeal circulation | |
| US20220305250A1 (en) | Cannula System Comprising Two Cannulas and Corresponding Method | |
| CN201055545Y (en) | External beating type vesicle shaped blood pump |
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 |