CN109528368A - Heart isolating device - Google Patents
Heart isolating device Download PDFInfo
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- CN109528368A CN109528368A CN201811475777.8A CN201811475777A CN109528368A CN 109528368 A CN109528368 A CN 109528368A CN 201811475777 A CN201811475777 A CN 201811475777A CN 109528368 A CN109528368 A CN 109528368A
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- cradling piece
- head end
- fixed part
- isolating device
- heart
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- 239000012528 membrane Substances 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract description 9
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 206010019280 Heart failures Diseases 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000005242 cardiac chamber Anatomy 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010002329 Aneurysm Diseases 0.000 description 1
- 208000009042 Anterior Wall Myocardial Infarction Diseases 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 208000006029 Cardiomegaly Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 206010000891 acute myocardial infarction Diseases 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 201000009658 anterolateral myocardial infarction Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000003130 cardiopathic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 210000005003 heart tissue Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007914 intraventricular administration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 230000003680 myocardial damage Effects 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
- A61F2002/8483—Barbs
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of heart isolating devices.The heart isolating device includes: distensible apparatus main body and polymeric membrane, and the polymeric membrane is attached in described device main body；Described device main body is in umbrella, and it is enclosed by more cradling pieces, the head end of the cradling piece is for being bonded core indoor wall, position of the cradling piece between head end and tail end has extended outward to form at least one fixed part, the fixed part is configured to after being pierced into core indoor wall, is the power for being bonded core indoor wall that the head end of cradling piece provides.Of the invention one has technical effect that, improves the compactness that heart isolating device is bonded with core indoor wall, promotes the effect of heart isolating device volume reduction choked flow.
Description
Technical field
The present invention relates to medical instruments fields, more particularly, to a kind of heart isolating device.
Background technique
Cardiopathic in recent years treat has significant progress, but the mental and physical efforts as one of the final final result of all heart diseases
Failure lacks threatens human health always.The reason of leading to heart failure, is numerous, and one of most common cause of disease is Acute myocardial stalk
Extremely.Acute myocardial infarction AMI leads to the generation of Heart enlargement and heart failure, especially due to myocardial damage and subsequent scarring
It is patient's more easily generation heart failure that Anterior wall myocardial infarction merges aneurysm, not only influences the quality of life of patient, also
Cause the financial burden of huge family and society.
Intervention is mostly used to perform the operation the treatment of heart failure at present, by the left heart of heart isolating device implantation patient a kind of
Room.Compared with traditional surgery, this therapeutic modality has many advantages, such as that small wound, few intercurrent disease, operating time are short, gradually by
Doctor and patient are favored.But there is many defects for traditional heart isolating device.
On the one hand, existing heart isolating device and ventricle wall to be bonded situation poor, cause blood can by device and
The engagement edge position of ventricle wall leak to inside ventricle diseased region, becomes so as to cause the volume reduction resistance flowing effect of device
Difference, easy initiation diseased region continue to expand outwardly.On the other hand, existing heart isolating device, structure are being implanted to
Behind left ventricle inside, stability is poor, and device is easy to cause to be displaced phenomenon with the contractile motion of heart.
Therefore, it is necessary to a kind of novel heart isolating device be proposed, to overcome drawbacks described above.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of heart isolating device.
According to the first aspect of the invention, a kind of heart isolating device is provided, which includes: distensible device master
Body and polymeric membrane, the polymeric membrane are attached in described device main body；
Described device main body is in umbrella, and is enclosed by more cradling pieces, and the head end of the cradling piece is for being bonded the heart
Chamber interior walls, position of the cradling piece between head end and tail end have extended outward to form at least one fixed part, the fixation
Portion is configured to after being pierced into core indoor wall, is the power for being bonded core indoor wall that the head end of cradling piece provides.
Optionally, there are multiple bifurcateds, multiple bifurcateds are by the head end of the cradling piece to its tail on the cradling piece
End is sequentially distributed, and the bifurcated constitutes the fixed part.
Optionally, multiple fixed parts from the head end of the cradling piece to tail end, in umbrella-shaped device main body radial direction side
Upward length is successively successively decreased.
Optionally, the head end of the cradling piece is greater than fixed part in umbrella in the length of umbrella-shaped device main body in the radial direction
The length of apparatus main body in the radial direction.
Optionally, the head end of the cradling piece is configured as pasting under the elastic restoring force effect of its own with core indoor wall
It is combined；The head end that the fixed part is configured as cradling piece provides the power of additional fitting core indoor wall.
Optionally, multiple fixed parts equidistantly distribute on the cradling piece.
Optionally, the polymeric membrane is attached on the inner surface of cradling piece；Either, the polymeric membrane is at least arranged
Have two layers, is respectively attached to the inner surface and the outer surface of cradling piece, the polymeric membrane of the fixed part on outer surface.
Optionally, the angular range between the head end of the cradling piece and the fixed part is 15 ° -60 °.
Optionally, it is attached with another polymeric membrane respectively in the inner surface and the outer surface of the fixed part.
Optionally, further includes: pedestal, the pedestal are located at the bottom end of described device main body, the pedestal and the bracket
The tail end of bar connects.
Of the invention one has technical effect that, by the head end of the cradling piece in apparatus main body in conjunction with wall of the heart and
Position between tail end has extended outward to form at least one fixed part, and heart isolating device can be improved and be bonded with core indoor wall
Compactness, promoted the volume reduction choked flow of heart isolating device effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the structural schematic diagram for the heart isolating device that the specific embodiment of the invention provides；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is another structural schematic diagram for the heart isolating device that the specific embodiment of the invention provides；
Fig. 4 is the application schematic diagram of heart isolating device of the present invention；
Fig. 5 is the another application schematic diagram of heart isolating device of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 and Fig. 3 respectively illustrates two kinds of structural schematic diagrams of heart isolating device provided by the invention, can be with from figure
Find out the two different improvement structures of the heart isolating device, Fig. 2 is the partial enlarged view of Fig. 1, and Fig. 4 and Fig. 5 are respectively illustrated
Two kinds of application schematic diagrams of heart isolating device provided by the invention for specific location of the isolating device in heart, are set
Mode etc. is set to be illustrated.It is detailed to carry out such as structure, the principles of heart isolating device of the present invention for present Fig. 1 to Fig. 5
Most description.
The present invention provides a kind of heart isolating device, which includes: distensible apparatus main body 1 and macromolecule
Film.The apparatus main body 1 is in beveled structure, and the polymeric membrane is attached on the distensible apparatus main body.Work as isolating device
Be implanted into intra-ventricle, ventricle diseased region is isolated in two parts, the polymeric membrane be used for flow to the blood of lesion portion into
Row stops.Wherein, described device main body is in umbrella, and is enclosed by more cradling pieces, in more branch of circumferencial direction arrangement
Hack lever, which gradually spreads to extend outwardly, constitutes the umbrella-shaped device main body.
Further, the head end 11 of the cradling piece is for being bonded core indoor wall, and the cradling piece 10 is in head end and tail end
Between position extended outward to form at least one fixed part 12.In the present embodiment, the fixed part 12 can pass through cutting
Technique be integrally formed on the cradling piece 10, can also be made up of technique familiar to those skilled in the art, this implementation
Example does not limit this.The head end 11 of the cradling piece and at least one fixed part 12 are used for and ventricle both facing to core indoor wall
Inner wall fitting is pierced into core indoor wall, which is fixed on intra-ventricle.It should be strongly noted that this implementation
" head end " refers in the apparatus main body of umbrella in example, and cradling piece is to external diffusion, one end of opening." tail end " on the other side is
Cradling piece is in apparatus main body far from the other end of head end.
As shown in figures 1 and 3, the head end 11 of the cradling piece is above the fixed part 12, and the head fixed part 12 divides
Position of the cloth between the head end and tail end of the cradling piece, the fixed part 12 are configured to after being pierced into core indoor wall, are
The head end 11 of cradling piece provides the power of fitting core indoor wall.In this way, the head end of cradling piece can be bonded with core indoor wall, blood is avoided
Diseased region is flowed to by the gap between apparatus main body and core indoor wall, ventricle volume reduction resistance flowing effect is caused to be deteriorated.
The quantity of the fixed part 12 can be one or more.For example, passing through a bifurcated on the cradling piece 10
It is formed with the head end 11 and a fixed part 12 of a cradling piece, is formed with one by bifurcated twice on the cradling piece 10
The head end 11 of cradling piece and two fixed parts 12.Those skilled in the art can select to be arranged what quantity was suitable for according to actual needs
The number of fixed part.The fixed part is configured to be pierced into core indoor wall.For example, in the fixed part and one towards inner wall
End is provided with anchoring structure, which can be pierced into inner wall, which is fixed on inside ventricle.Multiple fixed parts
It is pierced into core indoor wall respectively, when wall motion of systole, multiple fixed parts and wall of the heart form firm connection, can be to avoid
A possibility that the problems such as heart isolating device is displaced, reverses, reduction failure of apparatus.
In the present embodiment, position of the cradling piece 10 between head end and tail end is formed at least one fixed part 12.
As shown in Fig. 2, multiple fixed parts 12, which are sequentially distributed, leans on the position of near head end in the cradling piece 10.Alternatively, being also possible in institute
It states on a determining position of cradling piece, cutting bifurcated forms multiple fixed parts, i.e., multiple fixed parts are stretched out from same position to be pierced
Enter wall of the heart.Above two optionally embodiment is all within the protection scope of heart isolating device provided by the invention.
Heart isolating device provided in this embodiment, applied in the interventional therapy of heart, in apparatus main body and heart
Position between the head end and tail end of the cradling piece that wall combines has extended outward to form at least one fixed part, is made by fixed part
The head end of cradling piece is closely bonded with core indoor wall, to improve the compactness that heart isolating device is bonded with core indoor wall.
Compared to traditional heart isolating device, multiple fixed parts are successively pierced into wall of the heart, form firm connection with core indoor wall,
The problem of avoiding device shifts.Multiple fixed parts are pierced into the power that interior wall tissue gives bracket rod head end fitting core indoor wall,
It can be bonded effect with reinforced support rod head end and core indoor wall, between avoiding blood from passing through between apparatus main body and core indoor wall
Clearance flow causes ventricle volume reduction resistance flowing effect to be deteriorated to diseased region.
Optionally, there are multiple bifurcateds on the cradling piece 10.As shown in figure 3, three bifurcateds are by the cradling piece 10
Head end to its tail end is sequentially distributed, and the bifurcated constitutes the fixed part 12.In this embodiment, the cradling piece 10 from
Bifurcated is formed with multiple fixed parts 12 on head end to the different location of tail end, and each fixed part 12 is both facing to core indoor wall.It compares
In only one fixed part 12 the case where, this heart isolating device can increase fixed part 12 and wall of the heart tissue is fixed connects
The stability connect, multiple fixed parts 12, which are pierced into interior wall tissue, to provide an effect towards wall of the heart to the head end of cradling piece
Power, the component of this active force in the horizontal direction can be such that the head end of cradling piece fits tightly on core indoor wall, effectively right
The blood for flowing to lesion portion is stopped, and the volume reduction resistance flowing effect of heart isolating device has been obviously improved.
In addition, being additionally provided with developing apparatus on the fixed part 12.After the heart isolating device is implanted into patient's ventricle,
Whether can be bonded with core indoor wall by the position of accurate judgement isolating device in image of having an X-rayed or make film, cradling piece,
So that it is guaranteed that the personal safety of patient.
In a kind of possible embodiment, multiple fixed parts 12 from 10 head end of cradling piece to tail end,
The length of umbrella-shaped device main body 1 in the radial direction is successively successively decreased.As shown in figure 3, showing a kind of tool, there are three fixed parts 12
Heart isolating device.In this embodiment, three fixed parts 12 are sequentially distributed downwards from the head end of cradling piece 10, and three solid
Determining the length in the horizontal direction of portion 12 is respectively X2、X3、X4.Wherein, X2> X3> X4.In this manner it is ensured that each fixed part 12
It can be pierced into core indoor wall, and organize the formation of firm connection with core indoor wall.
As shown in figure 4, ventricle is in irregular cone, core indoor wall is to gradually inside contracting at the apex of the heart, close to apex of the heart direction
Fixed part 12 only need to go out shorter length from bifurcated on cradling piece 10 and can be pierced into interior wall tissue.It is more in the present embodiment
A fixed part adapts to the shape of ventricle, effectively increases in the umbrella-shaped device main body fixed part that length is successively successively decreased in the radial direction
The binding force of cradling piece and core indoor wall, the head end and core indoor wall for facilitating cradling piece fit closely.
Preferably, the length of the fixed part 12 accounts for the 25%-75% of the length of the head end 11 of the cradling piece.Due to branch
The needs of head end 11 of hack lever are bonded with core indoor wall, and fixed part 12 is located at the lower section of the head end 11 of cradling piece, needs to be pierced into the heart
Chamber interior walls.Therefore, the length of the fixed part 12 accounts for the length 25%-75% of the head end 11 of the cradling piece within the scope of this,
Fixed part may be implemented preferably to be combined with the head end of cradling piece with core indoor wall.It will be appreciated by those skilled in the art that, it is right
In different fixed parts, the percentage that the length of fixed part accounts for the length of the head end of cradling piece is different.For example, three fixed parts from
The head end of the cradling piece is successively distributed downwards, and the accounting of each fixed part length is followed successively by 75%, 50%, 25%.
Correspondingly, the length of the head end 11 of the cradling piece accounts for the 15%-40% of 1 length of described device main body.Such as Fig. 3 institute
Show, since fixed part 12 is formed from the head end bifurcated of cradling piece 10, the court that the head end 11 of cradling piece is given by fixed part 12
To the pretightning force of core indoor wall, so that the head end 11 and the inner wall of ventricle of cradling piece fit closely.And the head end 11 of cradling piece
Length and the area of the position, fitting that are bonded are closely related.For different heart isolating devices, by the length of the head end of cradling piece
Degree account for the length control of described device main body in 15%-40% within the scope of this, it can be achieved that be preferably bonded effect, cradling piece
Head end will not be interfered with its intraventricular hetero-organization, it is ensured that the stability of heart isolating device.
Optionally, multiple fixed parts 12 equidistantly distribute on the cradling piece 10.In this way, multiple fixed parts 12 with
The compliance of core indoor wall is preferable, can form stable combination.Each fixed part can undertake the active force of same size,
When wall motion of systole, each fixed part can reduce a possibility that isolating device is displaced, is broken, and have preferable
Fatigue strength facilitates the stability for promoting isolating device.
Further, the head end 11 of the cradling piece is greater than fixed part in the length of umbrella-shaped device main body 1 in the radial direction
12 length in umbrella-shaped device main body 1 in the radial direction.As shown in figure 3, the head end 11 of cradling piece is radial in umbrella-shaped device main body 1
Length on direction is X1, three length in the horizontal direction of fixed part 12 are respectively X2、X3、X4.Due in apparatus main body 1
On, the head end 11 of cradling piece is higher than multiple fixed parts 12, and the head end 11 of cradling piece will be fitted on core indoor wall.Therefore, it props up
The head end of hack lever is greater than the length of fixed part radially in umbrella-shaped device main body in the length of umbrella-shaped device main body in the radial direction
Degree is bonded effect with lifting bracket rod head end and core indoor wall.
In alternatively possible embodiment, the head end 11 of the cradling piece is configured as restoring in the elasticity of its own
Power effect is lower to fit together with core indoor wall.The head end 11 that the fixed part 12 is configured as cradling piece provides additional fitting
The power of core indoor wall.As shown in Figure 4 and Figure 5, the mode that two kinds of heart isolating device of the present invention is optionally implanted into ventricle is shown,
One is isolating devices to be implanted into intra-ventricle through the apex of the heart, and another kind is that isolating device is carefully implanted into intra-ventricle.Actually it had been implanted into
Cheng Zhong, after isolating device is opened by balloon inflation, cradling piece is opened around by center, and cradling piece utilizes the spy of own material
Property, elastic restoring force can make the head end of cradling piece form first be bonded with core indoor wall.Due to fixed part and cradling piece
There are certain angles between head end, and after fixed part is pierced into core indoor wall, fixed part will receive one towards wall of the heart
Active force, the component of this active force in the horizontal direction can make the head end of cradling piece provide additional active force, make cradling piece
Head end fit tightly on core indoor wall, strengthen cradling piece with the further of core indoor wall and be bonded effect.By above-mentioned
Isolating device can closely, firmly be bonded with ventricle, promote heart isolating device by the collective effect of two kinds of progressive modes
Volume reduction resistance flowing effect.
Specifically, the angular range between the head end 11 and the fixed part 12 of the cradling piece is 15 ° -60 °.Such as Fig. 2
Shown, after fixed part 12 is pierced into core indoor wall, fixed part 12 will receive the active force towards wall of the heart, this effect
The component of power in the horizontal direction can be such that the head end 11 of cradling piece fits tightly on core indoor wall.The head end of the cradling piece
Angular range between 11 and the fixed part 12 is related with the component size that the head end of cradling piece is subject to.Preferably, the branch
Angular range between the head end 11 and the fixed part 12 of hack lever is 25 ° -45 °, in this way, the head end of cradling piece can be better
It is fitted on core indoor wall, to completely cut off the blood for flowing to lesion portion, promotes the volume reduction resistance flowing effect of heart isolating device.
Optionally, the polymeric membrane is attached on the inner surface of cradling piece.Polymeric membrane makes blood for blood to be isolated
It will not be flow to the outside of isolating device, play the role of closure.Wherein, the polymeric membrane is attached respectively at least provided with two layers
Connect the inner surface and the outer surface in cradling piece, the polymeric membrane of the fixed part on outer surface.On cradling piece
Polymeric membrane be bonded completely with core indoor wall closely, will not make blood flow that can flow to diseased region by both gap location.
Preferably, it is attached with another polymeric membrane respectively in the inner surface and the outer surface of the fixed part.It is attached on fixed part
The polymeric membrane connect can be used as another choked flow barrier, stop to enter diseased region by the blood of bracket rod head end, it is ensured that heart
The volume reduction resistance flowing effect of isolating device.As shown in Figure 4 and Figure 5, polymeric membrane 3 and outer surface on cradling piece inner surface are attached at
On another polymeric membrane 4 can be and be made of identical or different material, for example, EPTFE, PET film, polyurethane etc..
Further, heart isolating device provided in this embodiment further include: pedestal 2, the pedestal 2 are located at described device
The bottom end of main body 1, the pedestal 2 are connect with the tail end of the cradling piece 10.Pedestal 2 can be formed by NITI braidings or height
Molecular material is molded, for isolating device to be fixed on intra-ventricle.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of heart isolating device characterized by comprising distensible apparatus main body and polymeric membrane, the macromolecule
Film is attached in described device main body；
Described device main body is in umbrella, and is enclosed by more cradling pieces, and the head end of the cradling piece is for being bonded intra-ventricle
Wall, position of the cradling piece between head end and tail end have extended outward to form at least one fixed part, the fixed part quilt
It is configured to after being pierced into core indoor wall, is the power for being bonded core indoor wall that the head end of cradling piece provides.
2. heart isolating device according to claim 1, which is characterized in that there are multiple bifurcateds on the cradling piece, it is more
A bifurcated is sequentially distributed by head end to its tail end of the cradling piece, and the bifurcated constitutes the fixed part.
3. heart isolating device according to claim 2, which is characterized in that more from the head end of the cradling piece to tail end
A fixed part successively successively decreases in the length of umbrella-shaped device main body in the radial direction.
4. heart isolating device according to claim 1, which is characterized in that the head end of the cradling piece is in umbrella-shaped device master
The length of body in the radial direction is greater than length of the fixed part in umbrella-shaped device main body in the radial direction.
5. heart isolating device according to claim 1, which is characterized in that the head end of the cradling piece is configured as at it
The elastic restoring force effect of itself is lower to fit together with core indoor wall；The head end that the fixed part is configured as cradling piece provides
The power of additional fitting core indoor wall.
6. heart isolating device according to claim 1, which is characterized in that multiple fixed parts are equidistantly distributed in institute
It states on cradling piece.
7. heart isolating device according to claim 1, which is characterized in that the polymeric membrane is attached at the interior of cradling piece
On surface；Either, the polymeric membrane is respectively attached to the inner surface and the outer surface of cradling piece, institute at least provided with two layers
State the polymeric membrane of the fixed part on outer surface.
8. heart isolating device according to claim 1, which is characterized in that the head end of the cradling piece and the fixed part
Between angular range be 15 ° -60 °.
9. heart isolating device according to claim 1, which is characterized in that in the inner surface and the outer surface of the fixed part
It is attached with another polymeric membrane respectively.
10. heart isolating device according to claim 1, which is characterized in that further include: pedestal, the pedestal are located at institute
The bottom end of apparatus main body is stated, the pedestal is connect with the tail end of the cradling piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475777.8A CN109528368B (en) | 2018-12-04 | 2018-12-04 | Cardiac isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475777.8A CN109528368B (en) | 2018-12-04 | 2018-12-04 | Cardiac isolation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109528368A true CN109528368A (en) | 2019-03-29 |
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| CN111110938A (en) * | 2020-01-14 | 2020-05-08 | 启晨(上海)医疗器械有限公司 | Ventricular assist device and using method thereof |
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