CN110338948A - Aortic branch support system - Google Patents
Aortic branch support system Download PDFInfo
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- CN110338948A CN110338948A CN201910728646.4A CN201910728646A CN110338948A CN 110338948 A CN110338948 A CN 110338948A CN 201910728646 A CN201910728646 A CN 201910728646A CN 110338948 A CN110338948 A CN 110338948A
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- 241000463219 Epitheca Species 0.000 claims abstract description 40
- 210000000709 aorta Anatomy 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 210000001835 viscera Anatomy 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010057521 Peripheral artery aneurysm Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000003090 iliac artery Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000001361 intraarterial administration Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 210000003270 subclavian artery Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000012800 visualization 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
- A61F2/856—Single tubular stent with a side portal passage
-
- 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
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
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- 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)
- Prostheses (AREA)
Abstract
A kind of aortic branch support system, belongs to medical instruments field comprising: main body rack folds unit including multiple main bodys for having elasticity and connecting into tubular from beginning to end；Split type supporting stand is at least arranged one, including multiple Split folding units that there is elasticity and connect into tubular from beginning to end, the inner cavity connection of Split type supporting stand and main body rack；Regulating mechanism is at least arranged one, and regulating mechanism folds unit at least two main bodys and is connected, and so that the main body connecting with regulating mechanism is folded the main body folding unit of unit and sandwiched in-between and is converted to unfolded state by folded state；Epitheca is set on the outside of main body rack and Split type supporting stand；Guide device is arranged on the axis direction of main body rack and epitheca；Aortic branch support system is in local release conditions, and the outer diameter of main body rack and Split type supporting stand is less than the diameter of the arch of aorta, to facilitate the axial angle of adjustment Split type supporting stand, is selected into branch vessel.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of aortic branch support system.
Background technique
The intracavitary therapy for involving the arotic disease of aortic branch blood vessel is current diagnosis and treatment difficult point.Intracavitary recovery technique
It is the major technique of current treatment arotic disease, but it is closely distally required to one section of normal aorta wall blood vessel in lesion
Carry out the attaching of bracket.Arotic disease in face of involving arch of aorta branch vessel has on the normal aorta wall in proximal end
Important branch's supply vessels, traditional intracavitary restorative procedure will cover these branch vessels, and vitals or internal organs is caused to lack
Blood.Solve the problems, such as that this technical solution specifically includes that parallel bracket technology, windowing stent technology, branch stent technology at present.
One, parallel bracket technology (parallel graft): including chimney bracket (chimneygraft), periscope bracket
(snorkel graftor periscopegraft), sandwich bracket (sandwich graft) technology.Major problem is that
There is interior leakage (also known as leakage in I type) in the gap (gutter) between two parallel brackets, additionally, due to parallel bracket
Radial expansion force mismatches and the effect of angle distortion, and the bracket long term of small diameter is easy occlusion.
Two, windowing stent technology is the currently used method for handling complicated arotic disease, according to the opportunity of windowing
Being divided into customization windowing again, (off the shelf fenestrated stentgraft, i.e., producer is according to patient anatomy's art
It is preceding that window is outputed on bracket), pre- windowing (physician modified fenestrated stentgraft, i.e. operation doctor
Teacher discharges bracket after outputing window in vitro in art according to visualisation again), orthotopic fenestration (insitu fenestrated
After stentgraft, that is, surgical doctor release bracket, window is outputed in vivo).Exist for customization windowing and pre- windowing, releases
Be difficult to adjust rack body the case where making window align fingers blood vessel after putting, although and orthotopic fenestration without this situation, art
In windowing in vivo increase the risk of injury of blood vessel and internal organs infraction, and there is also dangers of leaking out at window.
Three, branch stent is the intracavitary repair mode that comparison is suitble to human physiological structure, because branch vessel is directly to stitch
System theoretically avoids the generation of interior leakage on main body rack.Branch stent mainly has the branch stent sewed in art at present
(physician modified branched stentgraft) and finished product branch stent, such as Caster bracket on the market
With common iliac artery branch stent (IBD).Caster bracket needs individually to establish subclavian artery access and there are branch's seal wire and masters
Body tangles problem.IBD bracket is mainly used for the treatment of iliac artery aneurysm；The branch stent sewed in art is deposited as pre- windowing stent
It is difficult to adjust the problem of position is with align fingers blood vessel after release.
In conclusion the problem that the difficulty that branch stent position alignment branch vessel exists in the prior art is big.
Summary of the invention
The purpose of the present invention is to provide a kind of aortic branch support systems, are less than master in its outer diameter of partially unfolded orientation
The diameter of the arch of aorta is selected into branch vessel conducive to the axial angle of adjustment Split type supporting stand.
The embodiment of the present invention is achieved in that
A kind of aortic branch support system comprising:
Main body rack, including multiple flexible main bodys fold unit, and multiple main bodys fold unit head and the tail and connect
At tubular；
Split type supporting stand is at least arranged one, and the Split type supporting stand includes multiple flexible Split folding units, multiple
The Split folding unit head and the tail connect into tubular, and the inner cavity of the Split type supporting stand is connected to the inner cavity of the main body rack；
Regulating mechanism is at least arranged one, and the regulating mechanism folds unit at least two main bodys and is connected, and makes
The main body connecting with the regulating mechanism folds the main body folding unit of unit and sandwiched in-between can be by rolling over
Overlapping state is converted to unfolded state；
Epitheca is set on the outside of the main body rack and the Split type supporting stand in folded state；
Guide device is arranged on the axis direction of the main body rack and the epitheca.
In presently preferred embodiments of the present invention,
Under partially unfolded orientation, the part of the Split type supporting stand and main body rack is in extended state, also, the master
The diameter of body support frame and the Split type supporting stand is less than the diameter of the arch of aorta；
Under fully unfolded position, the main body rack and the Split type supporting stand are cylindrical shape；
Under folded state, the epitheca is set on the outside of the main body rack and the Split type supporting stand.
In presently preferred embodiments of the present invention,
The main body rack is formed at least one recessed area under folded state, and the Split type supporting stand is located at the indent
In region.
In presently preferred embodiments of the present invention, the main body folds unit and includes main body framework and be attached to the main body framework
On film.
In presently preferred embodiments of the present invention, the Split folding unit is including seperated skeleton and is attached to the seperated skeleton
On film.
In presently preferred embodiments of the present invention, the regulating mechanism includes: constraint set and fetters seal wire, described to fetter the one of set
End folds unit with the main body and is connected, and the other end is sheathed on the constraint seal wire, and the part main body is made to fold unit
It is crimped to folded state.
It further include the seeker of taper in presently preferred embodiments of the present invention, positioned at the front end of the epitheca, the seeker
It is arranged in the guide device.
In presently preferred embodiments of the present invention, the guide device is seal wire.
In presently preferred embodiments of the present invention, the film uses polytetrafluoroethylene (PTFE) material, the main body framework and seperated bone
Frame uses Nitinol material.
In presently preferred embodiments of the present invention, the epitheca is cylindrical shape, and the epitheca is made of flexible material.
The beneficial effect of aortic branch support system provided in an embodiment of the present invention is:
In the aortic branch support system, main body rack includes that multiple flexible main bodys fold unit, Duo Gezhu
Body folds unit head and the tail and connects into tubular；Split type supporting stand is at least arranged one, and Split type supporting stand includes multiple flexible fissions
Unit is folded, multiple Split folding unit head and the tail connect into tubular, and the inner cavity of Split type supporting stand is connected to the inner cavity of main body rack；It adjusts
Section mechanism and at least two main bodys fold unit and are connected, and make the main body connecting with regulating mechanism folding unit and are folded in its it
Between main body fold unit unfolded state can be converted to by folded state；Epitheca is set in the main body rack in folded state
With Split type supporting stand outside；Guide device is arranged on the axis direction of main body rack and epitheca；
In application, using guide device by inside epitheca and epitheca main body rack and Split type supporting stand guide to the arch of aorta
Corresponding position, then withdraws from epitheca, at this point, the part of main body rack and Split type supporting stand are in unfolded state, and main body branch
The outer diameter of frame and Split type supporting stand is less than the diameter of the arch of aorta, to facilitate the axial angle of adjustment Split type supporting stand, is selected into branch
Blood vessel will not generate leakage situation since the inner cavity of Split type supporting stand is connected to the inner cavity of main body rack.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of aortic branch support system provided in an embodiment of the present invention；
The structural representation of Fig. 2 regulating mechanism provided in an embodiment of the present invention；
Fig. 3 aortic branch support system provided in an embodiment of the present invention is switched to the signal of unfolded state by folded state
Figure；
Fig. 4 is installation steps signal of the aortic branch support system provided in an embodiment of the present invention in the arch of aorta
Figure；
Fig. 5 another aortic branch support system provided in an embodiment of the present invention switches to unfolded state by folded state
Schematic diagram；
Fig. 6 is installation steps of another aortic branch support system provided in an embodiment of the present invention in the arch of aorta
Schematic diagram.
In figure: the 10- arch of aorta；20- branch vessel；100- main body rack；110- main body folds unit；120-
Recessed area；200- Split type supporting stand；210- Split folding unit；300- regulating mechanism；310- constraint set；320- constraint
Seal wire；400- epitheca；500- guide device；510- branch seal wire；600- seeker.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that the instructions such as term " center ", "upper", "lower", "left", "right"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.This
Outside, term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
As shown in Figures 1 to 6；A kind of aortic branch support system provided in an embodiment of the present invention, is mainly used for involving
The intracavitary therapy of the arotic disease of aortic branch blood vessel.
The aortic branch support system includes: main body rack 100, Split type supporting stand 200, regulating mechanism 300, epitheca 400
With guide device 500.
It is specific:
Shown in as shown in Figure 1, Figure 3 and Figure 4, main body rack 100 includes that multiple flexible main bodys fold unit 110, multiple
Main body folds 110 head and the tail of unit and connects into tubular, and main body folds unit 110 can switch in folded state and unfolded state, folding
When overlapping state, the outer diameter of main body rack 100 is less than the diameter of the arch of aorta 10, and main body folding unit 110, which is in, is fully deployed shape
When state, 100 outer diameter of main body rack is adapted with the diameter of the arch of aorta 10, and then main body rack 100 is made to be attached to the arch of aorta
10 inner wall；
Split type supporting stand 200 is at least arranged one, referring to Fig. 3 and Fig. 4, shows the application signal an of Split type supporting stand 200
Figure shows the application schematic diagram of two Split type supporting stands 200 referring to Fig. 5；Split type supporting stand 200 includes multiple flexible points
Body folds unit 210, and multiple 210 head and the tail of Split folding unit connect into tubular, the inner cavity of Split type supporting stand 200 and main body rack
100 inner cavity connection, similar to 100 principle of main body rack, Split type supporting stand 200 can switch in folded state and unfolded state,
When folded state, the outer diameter of Split type supporting stand 200 is less than the diameter of the arch of aorta 10 and branch vessel 20, Split folding unit 210
When in fully unfolded position, 200 outer diameter of Split type supporting stand is adapted with the diameter of branch vessel 20, and then makes Split type supporting stand 200
It is attached to the inner wall of branch vessel 20；
Regulating mechanism 300 folds unit 110 at least two main bodys and is connected, and makes the main body connecting with regulating mechanism 300
Unfolded state can be converted to by folded state by folding the main body folding unit 110 of unit 110 and sandwiched in-between；
Epitheca 400 is set in 200 outside of main body rack 100 and Split type supporting stand in folded state, plays assembly main body
The effect of bracket 100 and Split type supporting stand 200, at the same time it can also which main body rack 100 and Split type supporting stand 200 are maintained at rugosity
State；
Guide device 500 is arranged on the axis direction of main body rack 100 and epitheca 400, and guide device 500 plays guiding
Effect, and then make epitheca 400 that main body rack 100 and Split type supporting stand 200 be driven to be introduced to endaortic corresponding position.
In application, using guide device 500 by the main body rack 100 and Split type supporting stand inside epitheca 400 and epitheca 400
Then 200 guidance withdraw from epitheca 400, at this point, 100 part of main body rack and Split type supporting stand to the corresponding position of the arch of aorta 10
200 are in unfolded state, and the outer diameter of main body rack 100 and Split type supporting stand 200 is less than the diameter of the arch of aorta 10, thus side
Just the axial angle for adjusting Split type supporting stand 200, is selected into branch vessel 20, inner cavity and main body rack 100 due to Split type supporting stand 200
Inner cavity connection, leakage situation will not be generated, and then can ensure the smooth of the arotic disease for involving aortic branch blood vessel
Treatment.
As shown in figure 3, in presently preferred embodiments of the present invention, in application, main body rack 100 and Split type supporting stand 200 are according to figure
Show arrow direction, there are following several use states:
Folded state makes main body rack 100 at this point, epitheca 400 is set in 200 outside of main body rack 100 and Split type supporting stand
It is bound in inside epitheca 400, and then is conveniently moved under the guidance of guide device 500 actively completely with Split type supporting stand 200
The corresponding position of arteries and veins.
Partially unfolded orientation, at this point, Split type supporting stand 200, generally in stretching, extension situation, the part of main body rack 100, which is in, stretches
Exhibition state (it is rugosity that another part of main body rack 100, which is conditioned the constraint of mechanism 300), also, main body rack 100 at this time
It is less than the diameter of the arch of aorta 10 with the diameter of Split type supporting stand 200, so that it is conducive to the axial angle of adjustment Split type supporting stand 200, choosing
Enter branch vessel 20；
Fully unfolded position at this point, main body rack 100 and Split type supporting stand 200 are released completely, and expands into as cylinder
Shape, main body rack 100 are supported in the arch of aorta 10, and Split type supporting stand 200 is supported in branch vessel 20, are propped up respectively to play
Support the effect of aorta and branch vessel 20；
In presently preferred embodiments of the present invention, main body rack 100 is formed at least one recessed area 120 under folded state,
Split type supporting stand 200 is located in recessed area 120.Referring to Fig. 3, a Split type supporting stand 200 and recessed area 120 are shown
Application schematic diagram shows the application schematic diagram of two Split type supporting stands 200 and two recessed areas 120 referring to Fig. 5；This implementation
In example, the effect that main body rack 100 is formed with recessed area 120 is to facilitate receiving branch stent, reduces aortic branch bracket
The overall volume of system, convenient for being moved in the arch of aorta 10.
In presently preferred embodiments of the present invention, main body folds unit 110 and includes main body framework and be attached in main body framework
Film, film are switched over main body framework in the state of folding and unfolding；
Similarly, Split folding unit 210 includes seperated skeleton and the film that is attached on seperated skeleton, film with point
Body skeleton is switched in the state of folding and unfolding.
In presently preferred embodiments of the present invention, above-mentioned film can use polytetrafluoroethylene (PTFE) material, main body framework and fission
Skeleton can use Nitinol material.
Nitinol is a kind of marmem, and marmem is can be by the plastic deformation of itself a certain specific
At a temperature of be automatically restored to the special alloy of original-shape.20% or more, fatigue life up to 107 times, damps its expansion and contraction
Characteristic is 10 times higher than common spring, and corrosion resistance can satisfy medicine better than medical stainless steel best at present
Application demand is a kind of good functional material.Also, in addition to unique shape memory function, also have wear-resistant, anti-
The excellent characteristics such as corrosion and super-elasticity.
As shown in Fig. 2 and Fig. 3 and Fig. 5, in presently preferred embodiments of the present invention, regulating mechanism 300 includes: constraint 310 Hes of set
Seal wire 320 is fettered, one end of constraint set 310 folds unit 110 with two main bodys and is connected, and the other end is sheathed on constraint seal wire
On 320, the multiple main bodys for folding two above-mentioned main bodys between unit 110 and two main bodys folding units 110 fold unit
110 are crimped to folded state.
When concrete application, two parts are can be set in constraint set 310, and a part constraint set 310 is distributed in main body rack 100
Side, the other sides that another part constraint set 310 is distributed in main body rack 100, also, the constraint set 310 of each section by
Multiple 310 compositions of multiple constraints set axially arranged along main body rack 100；Using multiple constraints set 310, can will be connected thereto
Two main bodys fold unit 110 and be folded in multiple main bodys that two main bodys fold between unit 110 and fold unit 110 along axis
To being uniformly bound to folded state.When extracting constraint seal wire 320, at this point, multiple constraints set 310 is in release conditions, no
Unit 110 is folded to main body again and applies pulling force, correspondingly, main body folds unit 110 and is sufficiently spread out as cylindrical shape.
Preferably, above-mentioned constraint set 310 can choose medical cotton thread or staple.
As shown in Figure 1, the aortic branch support system further includes the seeker of taper in presently preferred embodiments of the present invention
600, seeker 600 is located at the front end of epitheca 400, and seeker 600 is arranged in guide device 500, plays to epitheca 400 in master
The mobile guiding role of intra-arterial.
Preferably, above-mentioned guide device 500 is using seal wire made of superhard material.
In presently preferred embodiments of the present invention, epitheca 400 is cylindrical shape, and epitheca 400 is made of flexible material, to make epitheca
400 shape can adaptively change according to the shape in the arch of aorta 10.
As shown in figure 4, illustrating the side to perform the operation using the aortic branch support system in the embodiment of the present invention below
Method (wherein, the aortic branch support system use a Split type supporting stand 200, each step according to arrow direction in figure into
Row):
Under step A original state, main body rack 100 and Split type supporting stand 200 are bound in epitheca 400, are filled using guidance
It sets 500 drive seekers 600 and epitheca 400 is moved to the corresponding position of the arch of aorta 10；
Step B withdraws from epitheca 400, at this point, the part of main body rack 100 and Split type supporting stand 200 are in unfolded state；
Step C sequentially passes through the partially unfolded main body rack 100 and whole exhibitions by introducing another branch's seal wire 510
The inner cavity for the Split type supporting stand 200 opened, into branch vessel 20, to establish seal wire access；
Step D extracts constraint seal wire 320, so that all main body racks 100 is completely in unfolded state, then, withdraws and draw
Split type supporting stand 200 is placed in branch vessel 20 by top guide 600.
As shown in fig. 6, explanation utilizes another aortic branch support system progress hand in the embodiment of the present invention below
(wherein, which uses two Split type supporting stands 200 to the method for art, and each step is according to arrow side in figure
To progress):
Under step A original state, main body rack 100 and two Split type supporting stands 200 are bound in epitheca 400, using drawing
Lead the corresponding position that device 500 drives seeker 600 and epitheca 400 to be moved to the arch of aorta 10；
Step B withdraws from epitheca 400, at this point, the part of main body rack 100 and two Split type supporting stands 200 are in expansion shape
State；By introducing Ling Lianggen branch seal wire 510, two points for sequentially passing through the partially unfolded main body rack 100 and being all unfolded
The inner cavity of body support frame 200, into corresponding two branch vessels 20, to establish seal wire access；
Step C extracts constraint seal wire 320, so that all main body racks 100 is completely in unfolded state, then, withdraws and draw
Two Split type supporting stands 200 are placed in corresponding branch vessel 20 by top guide 600.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of aortic branch support system characterized by comprising
Main body rack, including multiple flexible main bodys fold unit, and multiple main bodys fold unit head and the tail and connect into cylinder
Shape；
Split type supporting stand is at least arranged one, and the Split type supporting stand includes multiple flexible Split folding units, multiple described
Split folding unit head and the tail connect into tubular, and the inner cavity of the Split type supporting stand is connected to the inner cavity of the main body rack；
Regulating mechanism is at least arranged one, and the regulating mechanism is connected at least two main bodys folding units, makes and institute
Stating the main body folding unit of the main body folding unit and sandwiched of regulating mechanism connection in-between can be by rugosity
State is converted to unfolded state；
Epitheca is set on the outside of the main body rack and the Split type supporting stand in folded state；
Guide device is arranged on the axis direction of the main body rack and the epitheca.
2. aortic branch support system according to claim 1, which is characterized in that
Under partially unfolded orientation, the part of the Split type supporting stand and main body rack is in extended state, also, the main body branch
The diameter of frame and the Split type supporting stand is less than the diameter of the arch of aorta；
Under fully unfolded position, the main body rack and the Split type supporting stand are cylindrical shape；
Under folded state, the epitheca is set on the outside of the main body rack and the Split type supporting stand.
3. aortic branch support system according to claim 1, which is characterized in that
The main body rack is formed at least one recessed area under folded state, and the Split type supporting stand is located at the recessed area
It is interior.
4. aortic branch support system according to claim 1, which is characterized in that it includes master that the main body, which folds unit,
Body skeleton and the film being attached in the main body framework.
5. aortic branch support system according to claim 1, which is characterized in that the Split folding unit includes point
Body skeleton and the film being attached on the seperated skeleton.
6. aortic branch support system according to any one of claims 1-5, which is characterized in that the adjusting machine
Structure includes: constraint set and constraint seal wire, and one end of the constraint set folds unit with the main body and is connected, and the other end is sheathed on
On the constraint seal wire, so that the part main body is folded unit and be crimped to folded state.
7. aortic branch support system according to claim 1, which is characterized in that further include the seeker of taper, position
In the front end of the epitheca, the seeker is arranged in the guide device.
8. aortic branch support system according to claim 1, which is characterized in that the guide device is seal wire.
9. aortic branch support system according to claim 4 or 5, which is characterized in that
The film uses polytetrafluoroethylene (PTFE) material, and the main body framework and seperated skeleton use Nitinol material.
10. aortic branch support system according to claim 1, which is characterized in that the epitheca is cylindrical shape, described
Epitheca is made of flexible material.
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| CN201910728646.4A CN110338948A (en) | 2019-08-07 | 2019-08-07 | Aortic branch support system |
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| CN201910728646.4A CN110338948A (en) | 2019-08-07 | 2019-08-07 | Aortic branch support system |
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