CN102973303B - Aortic-arch covered stent-graft vessel - Google Patents
Aortic-arch covered stent-graft vessel Download PDFInfo
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- CN102973303B CN102973303B CN201210558648.1A CN201210558648A CN102973303B CN 102973303 B CN102973303 B CN 102973303B CN 201210558648 A CN201210558648 A CN 201210558648A CN 102973303 B CN102973303 B CN 102973303B
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- side wall
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- aortic arch
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- 210000002376 aorta thoracic Anatomy 0.000 title claims abstract description 39
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 70
- 210000001367 artery Anatomy 0.000 claims abstract description 49
- 230000000994 depressogenic effect Effects 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000008280 blood Substances 0.000 claims description 7
- -1 poly tetrafluoroethylene Polymers 0.000 claims description 6
- 208000006735 Periostitis Diseases 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 210000003460 periosteum Anatomy 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229940058401 polytetrafluoroethylene Drugs 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000017531 blood circulation Effects 0.000 abstract description 17
- 210000000709 aorta Anatomy 0.000 abstract description 12
- 230000003902 lesion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 abstract 1
- 210000002168 brachiocephalic trunk Anatomy 0.000 description 9
- 210000001168 carotid artery common Anatomy 0.000 description 9
- 210000003270 subclavian artery Anatomy 0.000 description 7
- 239000007943 implant Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 210000003484 anatomy Anatomy 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 206010002329 Aneurysm Diseases 0.000 description 3
- 206010016717 Fistula Diseases 0.000 description 3
- 238000002224 dissection Methods 0.000 description 3
- 230000003890 fistula Effects 0.000 description 3
- 208000025494 Aortic disease Diseases 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 231100000915 pathological change Toxicity 0.000 description 2
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- 238000009738 saturating Methods 0.000 description 2
- 210000002489 tectorial membrane Anatomy 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 210000002385 vertebral artery Anatomy 0.000 description 2
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 208000031226 Hyperlipidaemia Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 206010002895 aortic dissection Diseases 0.000 description 1
- 210000001765 aortic valve Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 201000001421 hyperglycemia Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002697 interventional radiology Methods 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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Classifications
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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
- A61F2/02—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
- A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
Landscapes
- Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (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
The invention discloses an aortic-arch covered stent-graft, which comprises an aortic stent-graft and three branch artery stent-grafts, wherein a sunk part is arranged in the aortic stent-graft and comprises a left-side wall close to a proximal end, a right-side wall far away from the proximal end and a bottom wall for connecting the left-side wall with the right-side wall; two openings are arranged on one side wall in the left-side wall with the right-side wall of the sunk part, and one or two openings are arranged in the other side wall; an inner chimney graft with a caliber comparative with the openings is fixedly arranged in each opening; and the branch artery stent-grafts are respectively arranged in the chimney grafts. The stent-graft system with the structure can isolate aortic lesions involving the aortic arch and the ascending aorta and reconstruct the blood flow of branch arteries, is suitable for various normal and changing blood vessels, has a wide range of application, avoids customized stents, and can be in mass production. The time is effectively saved, and the operation is easy.
Description
Technical field
The present invention relates to implantable vessel field, more specifically refer to a kind of aortic arch overlay film frame type blood vessel.
Background technology
Aneurysm of thoracic aorta and dissection of aorta are the catastrophic disease of serious threat broad masses of the people life, high without active treatment disability rate, mortality rate.In recent years, along with hypertension, hyperlipidemia, hyperglycemia, the increasing of wound sickness rate, the sickness rate of aneurysm of thoracic aorta and dissection of aorta significantly raises.At present aorta intra-cavity stent prothesis good effect is adopted to this, and obtain develop rapidly.But involve the Aortic arch aneurysm of brachiocephalic trunk, left common carotid artery and left subclavian artery opening, difficult point that dissection of aorta is this treatment technology always.In order to ensure that support fixedly secures endaortic, prevent blood flow from leaking into support from the proximal part of support or distal end, the nearly heart of Intravascular stent for aorta used at present or distal end need the anchorage zone of at least 15mm simultaneously.Unison aortic dry nodule or aortic dissection involving the head arm, left common carotid artery and left subclavian artery open aortic arch, currently on the market when the stent in the treatment, will be different levels of sealing branch arteries, can't even through cavity treatment technology.
3 branch vessel because each patient's aortic arch sends: brachiocephalic trunk, left common carotid artery and left subclavian artery traveling are not quite similar, and clinically aortic arch and branch vessel thereof to walk row variation incidence rate higher.Aortic arch send 2 branches as: right brachiocephalic trunk and left common carotid artery be dry (13%) altogether, left common carotid artery is sent (9%) by right brachiocephalic trunk, a few peoples are without brachiocephalic trunk tremulous pulse, and aortic arch directly sends 4 branches: right subclavian artery, right common carotid artery, left common carotid artery, left subclavian artery.Vertebral artery directly sends much from aortic arch, such aortic arch sends out out 4 branches: brachiocephalic trunk, left common carotid artery, left subclavian artery, vertebral artery (selecting from " the clinical vascular anatomy interventional radiology tremulous pulse collection of illustrative plates " of Dan Hong chief editor).Once there is blood vessel to walk row variation, support and blood vessel just do not match, and just can not complete intracavity repairing and treating.The aortic branch support that the concrete anatomy of external with good grounds patient customizes especially.In operation, require simultaneously by its side opening align fingers tremulous pulse when initiative pulse support blood vessel being implanted aortic disease position, ensure that bifurcated artery blood flow is unobstructed, then implant small rack in bifurcated artery.But this method has following shortcoming: 1, support will the anatomy concrete according to patient customize especially, costly and not can manufacture; 2, customize the support used time longer, emergency operation patient can not be used for; 3, complicated operation, requires that each side opening aims at the bifurcated artery involved respectively exactly during support release, then may cause bifurcated artery circulatory disorders, occur corresponding complication if any deviation, seriously can threat to life.
In addition, application publication number is that the Chinese invention patent of CN102641164A discloses a kind of branching type aortic blood guard system, comprise an initiative pulse support blood vessel and three bifurcated artery stented vessel, the stage casing of aorta vessel is provided with depressed part, depressed part is provided with three side openings, and three bifurcated artery stented vessel are sub-packed in three side openings.Although this branching type aortic blood guard system can completely cut off the aortic disease involving aortic arch and ascending aorta, the blood flow of bifurcated artery can be rebuild, avoid customizing support, can to produce in batches and for emergency operation, but this aortic blood guard system needs the depressed part of reserved larger space to adapt to the bending of bifurcated artery support and adjustment angle, otherwise bifurcated artery support meeting serious distortion, pressurized and thrombosis, but, the aortic stents space of comparatively large then its underpart, space of depressed part narrows accordingly, therefore aortic stents supply of blood flow amount is inevitable influenced, especially brachiocephalic trunk, in addition, for the patient that some blood vessel travelings are comparatively special, such aortic blood guard system also cannot be suitable for.
Summary of the invention
The invention provides a kind of aortic arch overlay film frame type blood vessel, there is the shortcomings such as above-mentioned deficiency to solve existing stented vessel.
The present invention adopts following technical scheme:
A kind of aortic arch overlay film frame type blood vessel, comprise an initiative pulse support blood vessel and three bifurcated artery stented vessel, described initiative pulse support blood vessel is offered one section of depressed part, described depressed part comprises the left side wall near proximal part, away from right side wall and the connection left side of proximal part, the diapire of right side wall, one of them sidewall in the left side wall of described depressed part and right side wall offers two openings, another sidewall then offers one or two opening, the inner chimney support that each opening internal fixtion one section of bore is suitable with opening, described bifurcated artery stented vessel is sub-packed in described inner chimney support.
Above-mentioned diapire is the arc-shaped be bent upwards, and the cross section of described depressed part is crescent.
Further, above-mentioned inner chimney support extends along the initiative pulse support blood vessel sidewall deviating from depressed part direction, the outer surface of inner chimney support is coated by the first tunica vasculose, the second tunica vasculose that its underpart is sutured on initiative pulse support blood vessel sidewall by both sides supports fixing, second tunica vasculose extends to the outside at inner chimney support two ends, wherein, the second tunica vasculose near depressed part one end is amounted to vertically upward and is sutured in initiative pulse support blood vessel sidewall, the second tunica vasculose away from depressed part one end then tilts upward to be amounted to and is sutured on initiative pulse support blood vessel sidewall, the two sides that second tunica vasculose is amounted to offer the breach corresponding with inner chimney support.
One is embodiment preferably, and above-mentioned left side wall and right side wall are equipped with two openings, and described opening divides the both sides occuping left and right side wall top respectively side by side.
This stent also comprises one for the blood vessel blocking device of one of them inner chimney support of shutoff and a bifurcated artery stented vessel, described blood vessel blocking device comprises the support of the caliber after propping up slightly larger than described inner chimney support, this support appearance wall is coated by a tunica vasculose, support is built-in with part-blood periosteum, and the tunica vasculose of support two side ends is equipped with an aperture.
As the another kind of embodiment of this programme, above-mentioned left side wall offers two openings, and right side wall offers an opening, and two openings of left side wall divide the both sides occuping left side wall top side by side, the opening of right side wall and its top inscribe.
This programme also has a kind of embodiment, and namely above-mentioned left side wall offers two openings, and right side wall offers an opening, and two openings of left side wall divide the both sides occuping left side wall top side by side, the opening of right side wall and its top inscribe.
Above-mentioned initiative pulse support blood vessel and bifurcated artery stented vessel include stainless steel stent and are covered in the tubular film on this stainless steel stent, described stainless steel stent selects the material with good biocompatibility and support force, comprise the macromolecular material that nickel-base alloy, cobalt-base alloys, 316 medical stainless steels, marmem or degradable maybe can fall, described tubular film is poly tetrafluoroethylene, polyester fiber film, polyamide membrane or polypropylene screen.
Further, above-mentioned inner chimney support comprises the little pipe support of rustless steel and a tubular film that plural section equidistantly distributes, the little pipe support of described rustless steel is formed by connecting by described tubular film, and wherein, the little pipe support of rustless steel being arranged in the inner chimney support of two openings arranged side by side is mutually staggered.The spacing of the little pipe support of adjacent two rustless steel is greater than the length of the little pipe support of rustless steel.
Again further, the initiative pulse support blood vessel being positioned on opening part and the tangent inner chimney support of initiative pulse support blood vessel and be positioned at depressed part left and right sidewall top peak is equipped with a developing mark, two adjacent inner chimney supports are also provided with developing mark at the position that opening is tangent, described developing mark is the proper constituent of support itself, or has the material of good biocompatibility and not saturating X-ray characteristic.
From the above-mentioned description to structure of the present invention, compared to the prior art, tool of the present invention has the following advantages:
1, stent of the present invention, three or four openings are provided with at the left and right sidewall of its depressed part, and communicate with inner chimney support, bifurcated artery stented vessel selects optimum route to be implanted to three Main Branches artery blood flow passages from several inner chimney support, does not need the anatomy customization concrete according to patient.Initiative pulse support blood vessel of the present invention and bifurcated artery stented vessel are structure independently, be applicable to the blood vessel of various normal and variation out of shape, can according to the concrete condition of pathological changes, select initiative pulse support blood vessel and the bifurcated artery stented vessel of suitable dimension respectively, be combined into the stented vessel system of the most applicable a set of patient, avoid customizing support, can produce in batches, and effectively save time and effect of processing ease.
2, this structure stand type blood vessel safely, effectively can completely cut off and involve aortic arch and Study on Ascending Aortic Lesions, and applied widely, support release procedure is simple.As long as Study on Ascending Aortic Lesions distance aortic valve and coronary ostium have certain distance, it can completely cut off by this aortic arch overlay film frame type vascular system effectively, safely, rebuild the bifurcated artery of aortic arch easily simultaneously, alternative full Aortic arch replacement operation, avoids wound and the risk of open chest surgery.Because bifurcated artery stented vessel is implanted to each bifurcated artery channel of blood flow from the left and right sidewall of depressed part, therefore, this support is without the need to aiming at opening one by one with each bifurcated artery channel of blood flow, when initiative pulse support blood vessel is positioned at thoracic aorta, be easy to the opening of aortic arch bifurcated artery to be positioned between the left and right sidewall of depressed part.A crescent-shaped space is had between initiative pulse support blood vessel and aorta wall, because above-mentioned crescent-shaped space communicates with inner chimney carrier openings and bifurcated artery opening simultaneously, so initiative pulse support blood vessel is upon discharge, can not shutoff bifurcated artery, avoid the risk of bifurcated artery ischemia.Due to the existence of above-mentioned crescent-shaped space, during intracavitary therapy, seal wire and conduit have enough working places, by inner chimney carrier openings through crescent-shaped space, in quick feeding bifurcated artery, and implant bifurcated artery stented vessel, rebuild aortic arch three Main Branches artery blood flow passages, thus the pathological changes of involving aortic arch is completely cut off completely beyond this cover initiative pulse support blood vessel system, its operation is comparatively simple, has the advantages such as the high and post-operative complication of success rate of operation is few.
3, the initiative pulse support blood vessel of this structure stand type blood vessel is connected by inner chimney support with between branch vessel support, has sufficiently long anchorage zone, good stability, not easily internal fistula occurs between two stands.Inner chimney creatively props up and is placed in initiative pulse support blood vessel and becomes the part of its structure by the present invention, further developing existing chimney technology, both anchorage zone was added, rebuild the advantage of branch blood flow, abandoned again existing chimney support and be positioned at and outside aorta tectorial membrane stent, be extruded the shortcoming that internal fistula more easily occurs for distortion and main body aorta tectorial membrane stent.Grappling narrow range between aortic arch windowing stent main body current both at home and abroad and branch stent, more easily there is internal fistula and stent migration in less stable compared with the present invention.
4, this structure stand type blood vessel, brachiocephalic trunk and left common carotid artery branch channel of blood flow preferably can implant bifurcated artery stented vessel from proximal part side, its blood flow is in liberal supply, more meet Human Physiology, the blood flow of the initiative pulse support blood vessel below depressed part only supplies left subclavian artery and descending aorta.
5, the little pipe support of rustless steel being arranged in the inner chimney support of two openings arranged side by side is mutually staggered, is just in the other side's clearance space, can be compressed into small size shape, convenient operation when the little pipe support of two inner chimney supports compresses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the embodiment of the present invention one top view;
Fig. 3 be in Fig. 2 A to cutaway view Amplified image;
Fig. 4 is the structural representation of coated second tunica vasculose of inner chimney support of the present invention;
Fig. 5 is the structural representation of blood vessel blocking device of the present invention;
Fig. 6 is that stent of the present invention discharges in thoracic aorta, and three branch vessel give the structural representation after bifurcated artery blood vessel;
Fig. 7 is the top view of the embodiment of the present invention two;
Fig. 8 is the top view of the embodiment of the present invention three.
Detailed description of the invention
With reference to the accompanying drawings the specific embodiment of the present invention is described.
Embodiment one
With reference to Fig. 1 and Fig. 6, a kind of aortic arch overlay film frame type blood vessel, comprises an initiative pulse support blood vessel 1 and three bifurcated artery stented vessel 2, and wherein the front portion of bifurcated artery stented vessel 2 is designed for straight barrel type or caliber reduces to distal end gradually from proximal part.Initiative pulse support blood vessel 1 is offered one section of depressed part 11, depressed part 11 comprises the left side wall 111 near proximal part, the right side wall 112 away from proximal part and connects the diapire 113 of left and right sidewall 111,112, the arc-shaped of diapire 113 for being bent upwards, left side wall 111 and right side wall 112 are equipped with two openings 12, and opening 12 divides the both sides occuping left and right side wall 111,112 top respectively side by side.
With reference to Fig. 2, Fig. 3 and Fig. 4, the inner chimney support 13 that each opening 12 internal fixtion one section of bore is suitable with opening 12, bifurcated artery stented vessel 2 is sub-packed in inner chimney support 13.Inner chimney support 13 extends along initiative pulse support blood vessel 1 direction deviating from depressed part 11 direction, the outer surface of inner chimney support 13 is coated by the first tunica vasculose, the second tunica vasculose 14 that its underpart is sutured on initiative pulse support blood vessel 1 sidewall by both sides supports fixing, second tunica vasculose 14 extends to the outside at inner chimney support 13 two ends, wherein, the second tunica vasculose 14 near depressed part 11 one end is amounted to vertically upward and is sutured in initiative pulse support blood vessel 1 sidewall, the second tunica vasculose 14 away from depressed part 11 one end tilts upward to be amounted to and is sutured on initiative pulse support blood vessel 1 sidewall, the two sides that second tunica vasculose 14 is amounted to offer the breach corresponding with inner chimney support 13.For the ease of the implantation of bifurcated artery stented vessel 2 and the smooth and easy of blood flow, one-tenth obtuse angle, the bottom design of the inner chimney support 13 that the second tunica vasculose 14 inclined plane is corresponding with it.
Continue with reference to Fig. 2 and Fig. 4, inner chimney support 13 comprises the little pipe support 131 of rustless steel and a tubular film 132 that plural section equidistantly distributes, the little pipe support 131 of rustless steel is formed by connecting by tubular film 132, wherein, the little pipe support of rustless steel 131 being arranged in the inner chimney support 13 of two openings 12 arranged side by side is mutually staggered.The spacing of the little pipe support of adjacent two rustless steel 131 is greater than the length of the little pipe support 131 of rustless steel, and the staggered distance of two inner chimney supports 13 is the difference of the spacing of the little pipe support of adjacent two rustless steel 131 and the length of the little pipe support 131 of rustless steel just.
With reference to Fig. 5, this stent also comprises one for the blood vessel blocking device 15 of one of them inner chimney support 13 of shutoff, blood vessel blocking device 15 comprises the support 151 of the caliber after propping up slightly larger than inner chimney support 13, this support 151 appearance wall is coated by a tunica vasculose 152, support 151 is built-in with part-blood periosteum, the tunica vasculose 152 of support two side ends is equipped with an aperture 153, certainly also can carry out shutoff with other blood vessel blocking devices existing.With reference to Fig. 6, for the patient of some blood vessels normal Ji Yousantiao branch out of shape, article three, bifurcated artery stented vessel 2 selects optimum route to be implanted to three Main Branches artery blood flow passages from four inner chimney supports 13, wherein, brachiocephalic trunk branch channel of blood flow preferably can implant bifurcated artery stented vessel 2 from proximal part side, and 13, another one inner chimney support stops blood flow to pass through by blood vessel blocking device 15 shutoff; For blood vessel special four branch vessel that have out of shape, then increase bifurcated artery stented vessel 2; In addition, if only have the patient of two branch vessel, then respectively can implant a bifurcated artery stented vessel 2 from depressed part 11 left and right sides inner chimney support 13,13, two other inner chimney support is connected by another bifurcated artery stented vessel 2.
Above-mentioned initiative pulse support blood vessel 1 and bifurcated artery stented vessel 2 include stainless steel stent and are covered in the tubular film on this stainless steel stent, wherein stainless steel stent adopts the medical stainless steel alloy ring with good biocompatibility, chemical stability and machinery, physical property, as the macromolecular material that nickel-base alloy, cobalt-base alloys, 316 medical stainless steels, marmem or degradable maybe can fall; And tubular film is poly tetrafluoroethylene, polyester fiber film, polyamide membrane or polypropylene screen.In addition, with reference to Fig. 3, the initiative pulse support blood vessel 1 being positioned on opening 12 place and the tangent inner chimney support 13 of initiative pulse support blood vessel 1 and be positioned at depressed part 11 left and right sidewall 111,112 top peak is equipped with a developing mark 16, in addition, an another adjacent inner chimney support 13 is also provided with developing mark 16 at the position that opening 12 is tangent, described developing mark is the proper constituent of support itself, or has the material of good biocompatibility and not saturating X-ray characteristic.
Embodiment two
With reference to Fig. 7, the present embodiment is substantially identical with embodiment one, its main distinction is that the right side wall 112 of depressed part 11 offers an opening 12, this opening and right side wall 112 top inscribe, present embodiment is less relative to the scope of application of embodiment one and selectivity is narrower, be mainly used in the patient that aorta vessel branch does not increase, this embodiment need not use the blood vessel blocking device 15 in embodiment one, reduces operation operation.
Embodiment three
With reference to Fig. 8, the difference of this embodiment and embodiment two is that the left side wall 111 of depressed part 11 offers two openings 12, and right side wall 112 offers an opening 12.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading scope.
Claims (9)
1. an aortic arch overlay film frame type blood vessel, comprise an initiative pulse support blood vessel and three bifurcated artery stented vessel, described initiative pulse support blood vessel is offered one section of depressed part, described depressed part comprises the left side wall near proximal part, away from right side wall and the connection left side of proximal part, the diapire of right side wall, it is characterized in that: the left side wall of described depressed part offers two openings, right side wall offers one or two opening, the inner chimney support that each opening internal fixtion one section of bore is suitable with opening, described inner chimney support extends along the initiative pulse support blood vessel sidewall deviating from depressed part direction, described bifurcated artery stented vessel is sub-packed in described inner chimney support.
2. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 1, it is characterized in that: described diapire is the arc-shaped be bent upwards, the cross section of described depressed part is crescent.
3. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 1, it is characterized in that: the outer surface of described inner chimney support is coated by the first tunica vasculose, the second tunica vasculose that its underpart is sutured on initiative pulse support blood vessel sidewall by both sides supports fixing, second tunica vasculose extends to the outside at inner chimney support two ends, wherein, the second tunica vasculose near depressed part one end is amounted to vertically upward and is sutured in initiative pulse support blood vessel sidewall, the second tunica vasculose away from depressed part one end then tilts upward to be amounted to and is sutured on initiative pulse support blood vessel sidewall, the two sides that second tunica vasculose is amounted to offer the breach corresponding with inner chimney support.
4. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 1, is characterized in that: described left side wall and right side wall are equipped with two openings, and described opening divides the both sides occuping left and right side wall top respectively side by side.
5. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 4, it is characterized in that: this stent also comprises one for the blood vessel blocking device of one of them inner chimney support of shutoff and a bifurcated artery stented vessel, described blood vessel blocking device comprises the support of the caliber after propping up slightly larger than described inner chimney support, this support appearance wall is coated by a tunica vasculose, support is built-in with part-blood periosteum, and the tunica vasculose of support two side ends is equipped with an aperture.
6. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 1, it is characterized in that: described left side wall offers two openings, right side wall offers an opening, and two openings of left side wall divide the both sides occuping left side wall top side by side, the opening of right side wall and its top inscribe.
7. a kind of aortic arch overlay film frame type blood vessel as described in as arbitrary in claim 1-6, it is characterized in that: described initiative pulse support blood vessel and bifurcated artery stented vessel include the stainless steel stent with good biocompatibility and support force and the tubular film be covered on this stainless steel stent, and described tubular film is poly tetrafluoroethylene, polyester fiber film, polyamide membrane or polypropylene screen.
8. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 1, it is characterized in that: described inner chimney support comprises the little pipe support of rustless steel and a tubular film that plural section equidistantly distributes, the little pipe support of described rustless steel is formed by connecting by described tubular film, wherein, the little pipe support of rustless steel being arranged in the inner chimney support of two openings arranged side by side is mutually staggered.
9. a kind of aortic arch overlay film frame type blood vessel as claimed in claim 8, is characterized in that: the spacing of the little pipe support of adjacent two rustless steel is greater than the length of the little pipe support of rustless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558648.1A CN102973303B (en) | 2012-12-21 | 2012-12-21 | Aortic-arch covered stent-graft vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558648.1A CN102973303B (en) | 2012-12-21 | 2012-12-21 | Aortic-arch covered stent-graft vessel |
Publications (2)
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| CN102488575A (en) * | 2011-11-11 | 2012-06-13 | 许尚栋 | Aortic windowing stent |
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