CN106473835B - Branched membrane-covered support and its transportation system and method for releasing - Google Patents
Branched membrane-covered support and its transportation system and method for releasing Download PDFInfo
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- CN106473835B CN106473835B CN201610885861.1A CN201610885861A CN106473835B CN 106473835 B CN106473835 B CN 106473835B CN 201610885861 A CN201610885861 A CN 201610885861A CN 106473835 B CN106473835 B CN 106473835B
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- quoit
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- main body
- tube
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- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
- A61F2002/075—Stent-grafts the stent being loosely attached to the graft material, e.g. by stitching
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
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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)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
A kind of branched membrane-covered support and its transportation system and method for releasing, it includes main body rack, branch stent and independent rack；The main body rack includes metallic framework and overlay film；The metallic framework includes several eyelets, and the node of each eyelet is in inverted V type；The front end of the metallic framework is set there are two the eyelet for not coating overlay film completely, is followed successively by the first quoit and the second quoit from outside to inside；The top of the inverted V type node of second quoit is equipped with guide collar；Control line is equipped in the metallic framework, which is successively threaded through in each guide collar；The branch stent is that outer wall is netted cylinder, set on the main body rack side close to one end of second quoit；The diameter of the branch stent is successively decreased outward by inner end, and the branch stent inner end is foldable to parallel with the main body rack；Orientation direction silk is additionally provided in the metallic framework；The independent rack is the tubular overlay film frame that can radially expand, and is set to inside the branch stent.
Description
Technical field
The invention belongs to the field of medical instrument technology, especially a kind of branched membrane-covered support and its transportation system and make point
The method that branch type overlay film frame is discharged from the transportation system.
Background technique
Using endovascular graft, overlay film frame is used to treat one that arotic disease is arotic disease treatment in recent years
Big progress, compared with traditional therapy, this technology have the advantages that wound slightly, few intercurrent disease, the death rate it is low etc..
But endovascular graft is primarily adapted for use in the lesion for not involving bifurcated artery at present, and clinically have one
Divide and be related to the lesion of bifurcated artery, such as arch of aorta false aneurysm, while completely cutting off lesion, three points of the arch of aorta
The opening of branch can be also closed, and be will affect the blood supply of bifurcated artery surely, caused adverse consequences.Currently, for involving bifurcated artery
Lesion can using implantation branched membrane-covered support mode be treated, but be implanted into branched membrane-covered support technology it is still few
It is few very few.It is more acurrate to be more easily successfully sent to branched membrane-covered support for the transportation system of branched membrane-covered support
Specified lesion locations are still urgent need to solve the problem in minimally-invasive treatment technical field.
Summary of the invention
The object of the present invention is to provide a kind of branched membrane-covered supports, simple with structure, easy to use, and control is accurate
The advantages of.
It is a further object of the present invention to provide a kind of transportation systems of branched membrane-covered support, can be in order to overlay film frame
Positioning and release, registration, release is accurate, improves success rate of operation.
Another object of the present invention is to provide a kind of method for releasing of branched membrane-covered support, easy to operate accurate, can
The position of overlay film frame, especially its bracket legs is accurately controlled according to lesion locations.
To achieve the above object, the present invention takes following technical scheme:
A kind of branched membrane-covered support, it includes main body rack, branch stent and independent rack；
The main body rack includes metallic framework and the overlay film for being coated on the metallic framework periphery；The metallic framework includes several
The node of eyelet, each eyelet is in inverted V type, which can radially fold；Before the metallic framework
End is set there are two the eyelet for not coating overlay film completely, is followed successively by the first quoit and the second quoit from outside to inside；It should
The top of the inverted V type node of second quoit is equipped with guide collar；Control line is equipped in the metallic framework, the control line outer end is successively
It is threaded through in each guide collar；
The branch stent is that outer wall is netted cylinder, set on the main body rack side close to the one of second quoit
End penetrates through with the overlay film of the main body rack and connects；The diameter of the branch stent is successively decreased outward by inner end, and in the branch stent
It holds foldable to parallel with the main body rack；Orientation direction silk is additionally provided in the metallic framework, which passes through this point
Branch bracket leads to outside；
The independent rack is the tubular overlay film frame that can radially expand, and is set to inside the branch stent.
Further, the guide collar is woven with second quoit by an one metal wire.
Further, the outer wall of the branch stent is grid-shaped or helical form, is memory alloy material.
Further, the diameter of the inner end of the branch stent is 1~20mm.
Further, branch stent outer wall periphery entirety overlay film or part overlay film.
Further, it is directly connected between the branch stent and the main body rack or is connected by polymeric membrane.
Further, it is metal wire that the control line, which is located at the part in the metallic framework, is located in the guide collar
Part be macromolecule flexible wire.
A kind of transportation system of the branched membrane-covered support, it includes outer tube and the middle pipe positioned at the outer tube；
Pipe is located at the outer tube lower end in this, has the accommodating for accommodating folded branched membrane-covered support empty above pipe in this
Between；Tube top face is equipped with inner tube in this, which is pierced by the outer tube and top is successively fixed with lower locking plate and lower lock collar；Under this
The upper locking plate that can be moved up and down along the inner tube is equipped between locking plate and lower lock collar；It is set between the lower locking plate and upper locking plate
There is compressed spring；Locking plate upper surface is equipped with several shrinkage pools on this, which is equipped with through-hole corresponding with each shrinkage pool；The inner tube
It is inside equipped with central tube, which is arranged with lock collar, which, which tries to get to the heart of a matter to extend downwards, is equipped with several lock pins, each to lock
Sell across the lower lock collar through-hole and bottom end be inserted on this in shrinkage pool of locking plate；Lock collar top surface is equipped with sharp mouth, the point on this
The duct being connected to the central tube is equipped in mouth；
The outer tube bottom end is equipped with first handle, and bottom of the tube passes through the first handle in this, and tube bottom end is equipped with second-hand in this
Handle；The central tube sequentially passes through the inner tube, middle pipe, the second handle, and bottom end is equipped with third handle；
The control line has a first end and a second end；The first end is fixed between the lower locking plate and upper locking plate,
It is also secured at the lower locking plate and upper locking plate inside the second end of all guide collars, which successively wears
Cross the outer tube, pipe, the second handle in this；Orientation direction silk bottom end sequentially passes through the outer tube, pipe, the second-hand in this
Handle.
Further, the upper locking plate, lower locking plate are polygonal star structure, the number at star angle and first metal
The inverted V type interstitial content of circle is consistent；The lock pin passes through the inverted V type node of first quoit.
A kind of method for releasing of the branched membrane-covered support, using above-mentioned transportation system, the method for releasing includes
The following steps:
A. will be put into the accommodating space after the branched membrane-covered support collapsible, install the control line, in
Heart pipe；
B drives in the wrong direction on orientation direction silk top out of common iliac artery or femoral artery through and out external, then will be described defeated
The outer tube of system is sent to be placed in the arch of aorta to be repaired；
C. it partially drops back the outer tube, the first quoit described in pre-release and the second quoit, so that the branch stent
It stretchs out；The position of the main body rack and branch stent is adjusted by the movement transportation system and orientation direction silk；
D. it moves forward the central tube and drives the lock pin mobile, make locking plate and lower locking plate in compressed spring
The lower separation of effect, unclamps inside control line first end and second end, discharges the first quoit and the second quoit further；
E. continue the outer tube of dropping back, so that the main body rack rear end fully opens, control line described in post-tensioning, so that control
Line processed completely disengages guide collar, and the main body rack front end is discharged completely；
F. orientation direction silk continues to stay in human body, and entire transportation system is withdrawn from human body completely；
G. by common iliac artery or femoral artery path, the independent overlay film frame is implanted to along the orientation direction silk described
In branch stent, by discharging independent overlay film frame completely, branch stent is expanded radially.
Further, the first orientation direction silk is equipped in the central tube, which sequentially passes through described
Sharp mouth, central tube, third handle.
The beneficial effects of the present invention are: branched membrane-covered support provided by the invention and its transportation system and method for releasing can
Widely it is applied to be related to the inner cavity insulation operation of bifurcated artery lesion.The branched membrane-covered support and its transportation system structure
Simply, easy to use, release and importing vessel branch to branch stent, which are not present, leads to bracket because branch stent discharges in advance
Diameter cannot import greatly very much the case where vessel branch；And to the pre-release technology of first and second quoit of main body rack front end and
The special construction design of branch stent can accurately control the position of overlay film frame, especially its branch stent according to lesion locations.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of branched membrane-covered support of the present invention；
Fig. 2 is the structural schematic diagram of the second quoit of branched membrane-covered support of the present invention；
Fig. 3 is the structural schematic diagram of the independent overlay film frame of branched membrane-covered support of the present invention；
Fig. 4 is the structural schematic diagram of the transportation system of branched membrane-covered support of the present invention；
Fig. 5, Fig. 6 are the status diagrams of branched membrane-covered support pre-release of the present invention；
Fig. 7, Fig. 8 are the schematic diagrames after control line of the present invention is opened；
Fig. 9, Figure 10 are that the outer tube of branched membrane-covered support of the present invention is dropped back completely, control line is pulled the signal recalled
Figure；
Figure 11 is that branched membrane-covered support front and back end of the present invention discharges completely open schematic diagram；
Figure 12 is that the independent overlay film frame of branched membrane-covered support of the present invention is implanted to the schematic diagram after vessel branch；
Figure 13 to Figure 20 is branched membrane-covered support of the present invention in the process schematic gradually discharged.
Specific embodiment
In order to better understand the present invention, preferred embodiments of the invention are described further with reference to the accompanying drawings.
As shown in Figure 1-Figure 3, the present invention provides a kind of branched membrane-covered support, it includes main body rack 1, branch stent 2
With independent rack 3.
The main body rack 1 includes metallic framework 11 and the overlay film 12 for being coated on 11 periphery of metallic framework, and covering material is
High molecular material.The metallic framework 11 includes several eyelets, and the node of each eyelet is in inverted V type, elasticity gold
Belonging to circle can radially fold.The front end of the metallic framework 11 set there are two completely cladding overlay film eyelet, by outside to
Inside it is followed successively by the first quoit 111 and the second quoit 112.The top of the inverted V type node of second quoit 112 is equipped with guiding
Circle 113.Control line 114 is equipped in the metallic framework 11, which is successively threaded through in each guide collar 113, is formed
Annulus fetters the first quoit 111 and the second quoit 112 in the circumferential.Preferably, the guide collar 113 and second gold medal
Belonging to circle 112 is an entirety, is woven by an one metal wire.The part that the control line 114 is located in the metallic framework 11 is
Metal wire, the part in the guide collar 113 are macromolecule flexible wire.
The branch stent 2 is that outer wall is netted cylinder, is set to 1 side of main body rack close to second quoit 112
One end, penetrate through and connect with the overlay film 12 of the main body rack 1.The outer wall of the branch stent 2 is preferably in open weave shape, can also be with
In monotonous helical shape or double-helix；It is preferable to use memory alloy wire braidings for the branch stent 2, have good radial and axial
Deformability.The branch stent 2 is designed in tapered type, and diameter is successively decreased outward by inner end, is in pyramid type or broadening formation, with master
1 junction diameter of body support frame is maximum, is 1~20mm.The outer diameter of the branch stent 2 is less than the internal diameter of vessel branch, so that
Branch stent 2 can smoothly fully enter vessel branch.Be directly connected between the branch stent 2 and the main body rack 1 or
It is connected by artificial blood vessel cloth or macromolecule flexible material, allows branch stent 2 with main body rack 1 in any angle, example
It is such as folded to parallel with the main body rack 1.It is additionally provided with orientation direction silk 115 in the metallic framework 11, the orientation direction silk 115 is logical
It crosses the branch stent 2 and leads to outside, for importing branch stent 2 in scheduled vessel branch.The 2 outer wall periphery of branch stent
Not overlay film, can also local overlay film, or whole overlay films, the preferential selection of covering material have the high molecular material of good plasticity,
So that branch stent 2 has good radial and axial deformability.
The independent rack 3 is the tubular overlay film frame that can radially expand, and is set to inside the branch stent 2.
As shown in Fig. 4-Figure 12, the present invention also provides a kind of transportation systems of above-mentioned branched membrane-covered support, it includes outer
Pipe 4 and the middle pipe 5 inside the outer tube 4.Pipe 5 is located at 4 interior lower end of outer tube in this, has above pipe 5 for holding in this
Receive the accommodating space of folded branched membrane-covered support.In this 5 top surface of pipe be equipped with inner tube 6, the inner tube 6 be pierced by the outer tube 4 and
Top is successively fixed with lower locking plate 61 and lower lock collar 63.Being equipped between the lower locking plate 61 and lower lock collar 63 can be along the inner tube
The 6 upper locking plates 62 moved up and down.Compressed spring 64 is equipped between the lower locking plate 61 and upper locking plate 62.Locking plate 62 on this
Upper surface is equipped with several shrinkage pools, which is equipped with through-hole corresponding with each shrinkage pool.It is equipped with central tube 7 in the inner tube 6, it should
7 top of central tube is arranged with lock collar 71, and 71 bottom surface of lock collar is extended downwardly equipped with several lock pins 72 on this, and each lock pin 72 passes through should
The through-hole of lower lock collar 63 and bottom end is inserted on this in shrinkage pool of locking plate 62.71 top surface of lock collar is equipped with sharp mouth 73, the point on this
The duct being connected to the central tube 7 is equipped in mouth 73.
4 bottom end of outer tube is equipped with first handle 41, and 5 bottom of pipe passes through the first handle 41 in this, and 5 bottom end of pipe is equipped in this
Second handle 51.The central tube 7 sequentially passes through the inner tube 6, middle pipe 5, the second handle 51, and bottom end is equipped with third handle
74。
The control line 114 has a first end and a second end.The first end is fixed on the lower locking plate 61 and upper locking plate 62
Between, it is also secured inside the second end of all guide collars 113 the lower locking plate 61 and upper locking plate 62, this
Two ends sequentially pass through the outer tube 4, pipe 5, the second handle 51 in this.115 bottom end of orientation direction silk sequentially pass through the outer tube 4,
Pipe 5, the second handle 51 in this.
Preferably, locking plate 62, lower locking plate 61 are polygonal star structure, the number at star angle and first quoit on this
111 inverted V type interstitial content is consistent；Each lock pin 72 passes through the inverted V type node of first quoit 111, fetters first metal
Circle 111 is radially expanded.
As shown in Fig. 5-Figure 12, the present invention also provides a kind of method for releasing of above-mentioned branched membrane-covered support, utilization is above-mentioned
Transportation system, the method for releasing include the following steps:
A. it will be put into the accommodating space after the branched membrane-covered support collapsible, which be installed
7；
B drives in the wrong direction on 115 top of orientation direction silk out of common iliac artery or femoral artery through and out external, then by the conveying
The outer tube 4 of system is placed in the arch of aorta to be repaired；
C. it partially drops back the outer tube 4, pre-release first quoit 111 and the second quoit 112, so that the branch stent
2 stretch out, and can continue in the circumferential to fetter the first quoit 111 and the second quoit 112 by control line 114, so that the
One quoit 111 and the second quoit 112 are in pre-release state, thus whole radially the having inside human vas of bracket
Biggish mobile space can smoothly enter into vessel branch convenient for branch stent 2, then pass through the mobile transportation system and orientation direction
Silk 115 adjusts the position of the main body rack 1 and branch stent 2；
D. it moves forward the central tube 7 and drives the lock pin 72 mobile, compressing locking plate 62 with lower locking plate 61
The effect of spring 64 is lower to be separated, and inside the first end and second end for unclamping control line 114, makes the first quoit 111 and the second metal
The further release of circle 112；
E. continue the outer tube 4 of dropping back, so that 1 rear end of main body rack fully opens, post-tensioning control line 114, so that control
Line 114 processed completely disengages guide collar 113, continues to move along central tube 7, and lock pin 72 is partially disengaged lower lock collar 63, the first metal
Circle 111 is completely released, which is discharged completely；
F. orientation direction silk 115 continues to stay in human body, and entire transportation system is withdrawn from human body completely；
G. after branched membrane-covered support is fully implanted in human body, since branch stent 2 is not opened up in vessel branch completely
It opens, good blood access cannot be formed, by common iliac artery or femoral artery path, which is drawn along the positioning
Seal wire 115 is implanted in the branch stent 2, by discharging independent overlay film frame 3 completely, branch stent 2 is expanded radially, is protected
Demonstrate,proving vessel branch has good blood access.
The process that branched membrane-covered support gradually discharges during surgery in the present embodiment is specific as shown in Figure 13 to Figure 20, step
It is rapid as follows: for ease of operation, the first orientation direction silk 75 to be equipped in the central tube 7, which successively wears
Cross the point mouth 73, central tube 7, third handle 74.The orientation direction silk 115 being reserved in outside transportation system is moved from common iliac artery, stock
Drive in the wrong direction in arteries and veins across, and stretch out with arteria brachialis opening that left subclavian artery distal end continues it is external, then by transportation system entirety
It is placed in the arch of aorta to be repaired (referring to Figure 13).Part recession outer tube 4, the first quoit of pre-release front end 111 and second
Quoit 112, so that the branch stent 2 of branched membrane-covered support is stretched out in the blood vessel (referring to Figure 14).Pass through mobile delivery system
It unites with orientation direction silk 115 and adjusts the position of main body rack 1 and branch stent 2, so that branch stent 2 enters under left clavicle
Artery (referring to Figure 15).Move forward central tube 7, so that upper locking plate 62 is separated with lower locking plate 61, unclamps the two of control line 114
End, to make front end the first quoit 111 and the second further release of quoit 112 (referring to Figure 16).Continue outer tube 4 of dropping back,
So that 1 rear end of main body rack fully opens (referring to Figure 17).Post-tensioning control line 114, so that control line 114 completely disengages guide collar
113, it is discharged after then turning on, 1 front end of main body rack is discharged completely (referring to Figure 18).Orientation direction silk 115 continues to stay in people
In vivo, entire transportation system is withdrawn from into human body completely (referring to Figure 19).After the branched membrane-covered support is fully implanted in human body,
Again by common iliac artery, femoral artery path, independent overlay film frame 3 is implanted in left subclavian artery along orientation direction silk 115,
Branch stent 2 is expanded under natural resiliency effect radially by the independent overlay film frame 3 discharged completely, is guaranteed under left clavicle
Artery has good blood access (referring to fig. 2 0)；The independent overlay film frame 3 is in broadening formation, bell-mouthed position position
In the distal end of left subclavian artery, guarantee that independent overlay film frame 3 has good adherence quality with left subclavian artery distal end.
The above is better embodiment of the present invention, can not to show the present invention, it is all spirit of the invention with
Made any modification, equivalent conversion and improvement etc. between principle, should all include within protection scope of the present invention.
Claims (2)
1. a kind of transportation system of branched membrane-covered support, which is characterized in that the branched membrane-covered support include main body rack,
Branch stent and independent rack；The main body rack includes metallic framework and the overlay film for being coated on the metallic framework periphery；The metal
Skeleton includes several eyelets, and the node of each eyelet is in inverted V type, which can radially fold；It should
The front end of metallic framework is set there are two the eyelet of cladding overlay film completely, is followed successively by the first quoit and the from outside to inside
Two quoits；The top of the inverted V type node of second quoit is equipped with guide collar；Control line, the control are equipped in the metallic framework
Line outer end processed is successively threaded through in each guide collar；The branch stent is that outer wall is netted cylinder, is set to the main body rack side
Close to one end of second quoit, penetrates through and connect with the overlay film of the main body rack；The diameter of the branch stent is outside by inner end
End is successively decreased, and the branch stent inner end is foldable to parallel with the main body rack；Orientation direction silk is additionally provided in the metallic framework,
The orientation direction silk leads to outside by the branch stent；The independent rack is the tubular overlay film branch that can radially expand
Frame is set to inside the branch stent；
The transportation system includes outer tube and the middle pipe positioned at the outer tube；Pipe is located at the outer tube lower end in this, manages in this
Top has the accommodating space for accommodating folded branched membrane-covered support；Tube top face is equipped with inner tube in this, which wears
The outer tube and top are successively fixed with lower locking plate and lower lock collar out；Being equipped between the lower locking plate and lower lock collar can be interior along this
The upper locking plate that pipe moves up and down；Compressed spring is equipped between the lower locking plate and upper locking plate；Locking plate upper surface is set on this
There are several shrinkage pools, which is equipped with through-hole corresponding with each shrinkage pool；It is equipped with central tube in the inner tube, central tube top set
Equipped with upper lock collar, which, which tries to get to the heart of a matter to extend downwards, is equipped with several lock pins, and each lock pin passes through the through-hole of the lower lock collar and bottom end
It is inserted on this in shrinkage pool of locking plate；Lock collar top surface is equipped with sharp mouth on this, is equipped with the duct being connected to the central tube in the point mouth；
The outer tube bottom end is equipped with first handle, and bottom of the tube passes through the first handle in this, and tube bottom end is equipped with second handle in this；It should
Central tube sequentially passes through the inner tube, middle pipe, the second handle, and bottom end is equipped with third handle；
The control line has a first end and a second end；The first end is fixed between the lower locking plate and upper locking plate, is passed through
It is also secured inside the second end of all guide collars between the lower locking plate and upper locking plate, which sequentially passes through this
Outer tube, pipe, the second handle in this；Orientation direction silk bottom end sequentially passes through the outer tube, pipe, the second handle in this.
2. the transportation system of branched membrane-covered support according to claim 1, which is characterized in that the upper locking plate, under
Locking plate is polygonal star structure, and the number at star angle is consistent with the inverted V type interstitial content of first quoit；The lock pin is worn
Cross the inverted V type node of first quoit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885861.1A CN106473835B (en) | 2016-10-11 | 2016-10-11 | Branched membrane-covered support and its transportation system and method for releasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885861.1A CN106473835B (en) | 2016-10-11 | 2016-10-11 | Branched membrane-covered support and its transportation system and method for releasing |
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| CN109567981B (en) * | 2017-09-29 | 2024-09-20 | 上海微创心脉医疗科技股份有限公司 | Support system, conveying device thereof, rear release structure and support |
| CN108143447B (en) * | 2017-12-26 | 2021-04-06 | 许尚栋 | Aortic dissection distal end breach plugging device |
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| CN106473835A (en) | 2017-03-08 |
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