CN108113778B - Sectional type aortic branch type tectorial membrane support - Google Patents
Sectional type aortic branch type tectorial membrane support Download PDFInfo
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- CN108113778B CN108113778B CN201810133271.2A CN201810133271A CN108113778B CN 108113778 B CN108113778 B CN 108113778B CN 201810133271 A CN201810133271 A CN 201810133271A CN 108113778 B CN108113778 B CN 108113778B
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- stent graft
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- 210000002489 tectorial membrane Anatomy 0.000 title claims abstract description 198
- 210000002376 aorta thoracic Anatomy 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 38
- 238000009958 sewing Methods 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 9
- 210000000709 aorta Anatomy 0.000 claims description 8
- 210000003270 subclavian artery Anatomy 0.000 claims description 6
- 239000003566 sealing material Substances 0.000 claims description 4
- 239000003550 marker Substances 0.000 claims 2
- 239000012528 membrane Substances 0.000 claims 1
- 206010002895 aortic dissection Diseases 0.000 abstract description 9
- 239000008280 blood Substances 0.000 abstract description 5
- 210000004369 blood Anatomy 0.000 abstract description 5
- 230000004083 survival effect Effects 0.000 abstract description 4
- 206010002329 Aneurysm Diseases 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 230000011218 segmentation Effects 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229920006254 polymer film Polymers 0.000 description 5
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 4
- 208000007474 aortic aneurysm Diseases 0.000 description 4
- 210000002168 brachiocephalic trunk Anatomy 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction 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
- A61F2/02—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
Abstract
The invention provides a sectional aortic branch type covered stent, which comprises the following components: the first section branch tectorial membrane support, the second section branch tectorial membrane support, the third section branch tectorial membrane support, first section branch tectorial membrane support, second section branch tectorial membrane support and third section branch tectorial membrane support comprise outer main part support and inlayer branch support respectively, wherein inlayer branch support includes upper strata branch support and lower floor's support, seam each other between upper strata branch support, lower floor's support, upper strata branch support and the lower floor's support is connected, adopts the structural style of segmentation + branch, upper strata branch support extends to branch vessel in order to supply blood for branch vessel, lower floor's support extends to the back end descending aorta in order to supply blood for the back end. The invention can effectively improve the survival rate of the ascending aortic dissection and/or the aneurysm and reduce the death rate of open surgery.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a sectional aortic branch type tectorial membrane stent.
Background
The aortic dissection mainly means that the intima is torn locally and is impacted by strong blood, so that the intima is gradually stripped and expanded and the like, a true cavity and a false cavity are formed in the artery, a patient is caused to have clinical manifestations such as tearing pain and the like, the aorta belongs to a main blood vessel of a human body, the aorta bears direct pressure from heart beating, the blood flow is large, once the intima layer tearing phenomenon occurs to the patient, the death phenomenon can be caused if the patient is not treated in time, and the life safety of the patient is seriously threatened. The aortic dissection patient with the arch part is involved in aortic arch part operation, which involves more important blood vessels, the operation needs longer time, the operation is more complicated, bleeding is easy to occur, and the aortic dissection patient has higher mortality rate, and the operation wound in the blood vessel cavity is small, and the mortality rate is lower than that of the open operation. There is currently no suitable endoluminal stent for the aortic dissection and/or aneurysm, while for aortic arch branch vessel treatment is a challenge for current stent design. At present, the existing peritoneal stent or branch stent cannot better solve the problem of ascending aortic dissection and/or aneurysm, and has higher risk of death and technical requirements of operation in open operation, and long recovery time of postoperative patients, so the sectional aortic branch type tectorial stent can effectively improve the survival rate of the ascending aortic dissection and/or aneurysm and reduce the death rate of open operation.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a sectional aortic branch type covered stent which can effectively improve the survival rate of an ascending aortic dissection and/or an aneurysm and reduce the death rate of an open operation.
The technical scheme adopted by the invention for solving the technical problems is as follows: a segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support and the outer layer main body support all comprise a near-heart end and a telecentric end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing way, the upper layer branch support and the lower layer support are connected with each other in a sewing way, the telecentric ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with anchoring areas, the outer layer main body support of the first section branch tectorial membrane support is placed in an ascending aorta vessel, the distal end of the upper branch stent graft of the first section extends into the innominate arterial vessel, the distal end of the lower branch stent graft of the first section is flush with the distal end of the outer body stent graft of the first section, the proximal end of the outer body stent graft of the second section is connected with the distal end anchoring zone of the lower branch stent graft of the first section in an anchoring manner, the distal end of the upper branch stent graft of the second section extends into the left common carotid vessel, the distal end of the lower branch stent graft of the second section is flush with the outer body stent graft of the second section, the proximal end of the outer body stent graft of the third section is connected with the distal end anchoring zone of the lower branch stent graft of the second section in an anchoring manner, the distal end of the upper-layer branch stent of the third-section branch stent-graft extends into the left subclavian artery vessel, and the distal end of the lower-layer branch stent-graft extends into the arch or descending aorta.
Further, the diameters of the lower-layer brackets from the first-section branch tectorial membrane bracket to the third-section branch tectorial membrane bracket are all larger than the diameter of the upper-layer branch bracket, and the sum of the diameters of the lower-layer bracket and the upper-layer branch bracket is equal to the diameter of the outer-layer main body bracket.
Further, a metal mark is arranged on an anchoring area from the first section of branch tectorial membrane support to the distal end of the lower layer support of the second section of branch tectorial membrane support, the distance between the metal mark and the distal end of the lower layer support is 2-3cm, the proximal end of the outer layer main body support of the second section of branch tectorial membrane support is anchored at the metal mark of the lower layer support of the first section of branch tectorial membrane support, and the proximal end of the outer layer main body support of the third section of branch tectorial membrane support is anchored at the metal mark of the lower layer support of the second section of branch tectorial membrane support.
Further, the diameter of the near-core end of the outer-layer main body stent of the second-section branch stent-graft is 20% -30% larger than that of the metal mark of the lower-layer stent of the first-section branch stent-graft, and the diameter of the near-core end of the outer-layer main body stent of the third-section branch stent-graft is 20% -30% larger than that of the metal mark of the lower-layer stent of the second-section branch stent-graft.
Further, gaps are formed at the joints of the outer layer main body supports, the upper layer branch supports and the lower layer supports of the first section branch tectorial membrane support to the third section branch tectorial membrane support, fillers are filled in the gaps, and the fillers are sealing materials.
Further, the proximal end of the outer layer main body bracket from the first section branch tectorial membrane bracket to the third section branch tectorial membrane bracket is provided with an umbrella skirt part for anchoring.
Further, the sectional aortic branch type tectorial membrane stent further comprises a fourth section tectorial membrane stent, the fourth section tectorial membrane stent comprises a proximal end and a distal end, a metal mark is arranged on an anchoring area of the distal end of the lower layer stent of the third section of branch tectorial membrane stent, the proximal end of the fourth section of tectorial membrane stent is in anchoring connection with a metal mark of the distal end of the lower layer stent of the third section of branch tectorial membrane stent, the distal end of the fourth section of tectorial membrane stent extends into the descending aorta, and the diameter of the proximal end of the fourth section of tectorial membrane stent is 20% -30% larger than that of the lower layer stent of the third section of branch tectorial membrane stent.
Further, an umbrella skirt part for anchoring is arranged at the proximal end of the fourth section of tectorial membrane bracket.
Further, the sectional aortic branch type tectorial membrane stent is made of a polymer film.
The invention has the advantages that: the invention adopts a sectional and branched structure form, which is formed by anchoring and connecting a first section of branched tectorial membrane bracket to a third section of branched tectorial membrane bracket and a fourth section of tectorial membrane bracket, wherein the first section of branched tectorial membrane bracket to the third section of branched tectorial membrane bracket are respectively composed of an inner layer and an outer layer, the outer layer is a main body bracket, the inner layer is a branched bracket, the inner layer is composed of an upper layer branched bracket and a lower layer bracket, the upper layer branched bracket extends to a branched blood vessel to supply blood for the branched blood vessel, and the lower layer bracket extends to a rear section of descending aorta to supply blood for the rear section. By this structure, the survival rate of the ascending aortic dissection and/or aneurysm can be effectively improved, and the death rate of open surgery can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a sectional aortic branch stent graft according to one embodiment of the present invention;
FIG. 2 is a schematic view of a second embodiment of a segmented aortic branch stent graft of the present invention;
FIG. 3 is a schematic view of a third embodiment of a segmented aortic branch stent graft of the present invention;
FIG. 4 is a schematic view of a sectional aortic branch stent graft according to the fourth embodiment of the invention;
FIG. 5 is a schematic view of the outer body stent of a segmented aortic branch stent graft of the present invention;
FIG. 6 is a block diagram of a first segment branch stent graft of a segmented aortic branch stent graft of the present invention;
FIG. 7 is a block diagram of a second-stage branch stent graft of a segmented aortic branch stent graft of the present invention;
FIG. 8 is a block diagram of a third branch stent graft in a third embodiment of a segmented aortic branch stent graft of the present invention;
FIG. 9 is a block diagram of a third branch stent graft in a first embodiment of a segmented aortic branch stent graft of the present invention;
fig. 10 is a block diagram of a fourth segment stent graft of a segmented aortic branch stent graft of the present invention.
Wherein: 1. ascending aortic blood vessels; 2. a innominate arterial vessel; 3. left common carotid vessel; 4. left subclavian arterial vessel; 5. descending aorta; 6. the outer layer main body bracket of the first section of branch tectorial membrane bracket; 7. the upper layer branch bracket of the first section branch tectorial membrane bracket; 8. a first section of branch tectorial membrane bracket lower bracket; 9. the outer layer main body bracket of the second section of branch tectorial membrane bracket; 10. a second section of branch stent graft is a branch stent on the upper layer; 11. a second section of branch tectorial membrane bracket lower bracket; 12. the outer layer main body bracket of the third section of branch tectorial membrane bracket; 13. a third section of branch stent graft is a branch stent on the upper layer; 14. a third section of branch tectorial membrane bracket lower bracket; 15. a fourth section of the covered stent; 16. a filler; 17. a metal mark; 18. an umbrella skirt.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Embodiment one: a segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support and the outer layer main body support respectively comprise a near-heart end and a telecentric end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing way, the upper layer branch support and the lower layer support are mutually connected in a sewing way, the telecentric ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with anchoring areas, the outer layer main body stent 6 of the first section branch tectorial membrane stent is placed in the ascending aorta vessel 1, the distal end of the upper layer branch stent 7 of the first section branch tectorial membrane stent extends into the innominate artery vessel 2, the distal end of the lower layer stent 8 of the first section branch tectorial membrane stent is flush with the distal end of the outer layer main body stent 6 of the first section branch tectorial membrane stent, the proximal end of the outer layer main body stent 9 of the second section branch tectorial membrane stent is connected with the distal end anchoring area of the lower layer stent 7 of the first section branch tectorial membrane stent in an anchoring manner, the distal end of the upper layer branch stent 10 of the second section branch tectorial membrane stent extends into the left common carotid vessel 3, the distal end of the lower layer stent 11 of the second section branch tectorial membrane stent is flush with the outer layer main body stent 9 of the second section branch tectorial membrane stent, the proximal end of the outer layer main body support 12 of the third-section branch tectorial membrane support is connected with the distal end anchoring area of the lower layer support 11 of the second-section branch tectorial membrane support in an anchoring manner, the distal end of the upper layer branch support 13 of the third-section branch tectorial membrane support extends into the left subclavian artery vessel 4, and the distal end of the lower layer support 14 of the third-section branch tectorial membrane support extends into the descending aorta 5.
Further, the diameters of the lower-layer brackets from the first-section branch tectorial membrane bracket to the third-section branch tectorial membrane bracket are all larger than the diameter of the upper-layer branch bracket, and the sum of the diameters of the lower-layer bracket and the upper-layer branch bracket is equal to the diameter of the outer-layer main body bracket.
Further, a metal mark 17 is arranged on an anchoring area of the distal end of the lower layer support from the first section branch tectorial membrane support to the second section branch tectorial membrane support, the distance between the metal mark 17 and the distal end of the lower layer support is 2-3cm, the proximal end of the outer layer main body support of the second section branch tectorial membrane support is anchored at the metal mark 17 of the lower layer support of the first section branch tectorial membrane support, and the proximal end of the outer layer main body support of the third section branch tectorial membrane support is anchored at the metal mark 17 of the lower layer support of the second section branch tectorial membrane support.
Further, the diameter of the proximal end of the outer layer main body stent 9 of the second-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 9 of the first-section branch stent graft, and the diameter of the proximal end of the outer layer main body stent 12 of the third-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 11 of the second-section branch stent graft.
Further, the proximal ends of the outer body stents of the first to third branch stent-grafts are provided with sheds 18 for anchoring.
Further, the sectional aortic branch type tectorial membrane stent is made of a polymer film.
Embodiment two: a segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support and the outer layer main body support respectively comprise a near-heart end and a telecentric end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing way, the upper layer branch support and the lower layer support are mutually connected in a sewing way, the telecentric ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with anchoring areas, the outer layer main body stent 6 of the first section branch tectorial membrane stent is placed in the ascending aorta vessel 1, the distal end of the upper layer branch stent 7 of the first section branch tectorial membrane stent extends into the innominate artery vessel 2, the distal end of the lower layer stent 8 of the first section branch tectorial membrane stent is flush with the distal end of the outer layer main body stent 6 of the first section branch tectorial membrane stent, the proximal end of the outer layer main body stent 9 of the second section branch tectorial membrane stent is connected with the distal end anchoring area of the lower layer stent 8 of the first section branch tectorial membrane stent in an anchoring manner, the distal end of the upper layer branch stent 10 of the second section branch tectorial membrane stent extends into the left common carotid vessel 3, the distal end of the lower layer stent 11 of the second section branch tectorial membrane stent is flush with the outer layer main body stent 9 of the second section branch tectorial membrane stent, the proximal end of the outer layer main body support 12 of the third-section branch tectorial membrane support is connected with the distal end anchoring area of the lower layer support 11 of the second-section branch tectorial membrane support in an anchoring manner, the distal end of the upper layer branch support 13 of the third-section branch tectorial membrane support extends into the left subclavian artery vessel 4, and the distal end of the lower layer support 14 of the third-section branch tectorial membrane support extends into the descending aorta 5.
Further, the diameters of the lower-layer brackets from the first-section branch tectorial membrane bracket to the third-section branch tectorial membrane bracket are all larger than the diameter of the upper-layer branch bracket, and the sum of the diameters of the lower-layer bracket and the upper-layer branch bracket is equal to the diameter of the outer-layer main body bracket.
Further, a metal mark 17 is arranged on an anchoring area of the distal end of the lower layer support from the first section branch tectorial membrane support to the second section branch tectorial membrane support, the distance between the metal mark 17 and the distal end of the lower layer support is 2-3cm, the near-heart end of the outer layer main body support 9 of the second section branch tectorial membrane support is anchored at the metal mark 17 of the lower layer support 8 of the first section branch tectorial membrane support, and the near-heart end of the outer layer main body support 12 of the third section branch tectorial membrane support is anchored at the metal mark 17 of the lower layer support 11 of the second section branch tectorial membrane support.
Further, the diameter of the proximal end of the outer layer main body stent 9 of the second-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 8 of the first-section branch stent graft, and the diameter of the proximal end of the outer layer main body stent 12 of the third-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 11 of the second-section branch stent graft.
Further, gaps are formed at the joints of the outer layer main body supports, the upper layer branch supports and the lower layer supports of the first section branch tectorial membrane support to the third section branch tectorial membrane support, fillers 16 are filled in the gaps, and the fillers 16 are made of sealing materials.
Further, the proximal ends of the outer body stents of the first to third branch stent-grafts are provided with sheds 18 for anchoring.
Further, the sectional aortic branch type tectorial membrane stent is made of a polymer film.
Embodiment III: a segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support, the third section branch tectorial membrane support, the fourth section tectorial membrane support 15, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support, the outer layer main body support and the fourth section tectorial membrane support 15 all comprise a near-heart end and a far-heart end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing manner, the upper layer branch support and the lower layer support are mutually connected in a sewing manner, the far-heart ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with an anchoring area, the outer layer main body stent 6 of the first section branch tectorial membrane stent is placed in the ascending aorta vessel 1, the distal end of the upper layer branch stent 7 of the first section branch tectorial membrane stent extends into the innominate artery vessel 2, the distal end of the lower layer stent 8 of the first section branch tectorial membrane stent is flush with the distal end of the outer layer main body stent 6 of the first section branch tectorial membrane stent, the proximal end of the outer layer main body stent 9 of the second section branch tectorial membrane stent is connected with the distal end anchoring area of the lower layer stent 8 of the first section branch tectorial membrane stent in an anchoring manner, the distal end of the upper layer branch stent 10 of the second section branch tectorial membrane stent extends into the left common carotid vessel 3, the distal end of the lower layer stent 11 of the second section branch tectorial membrane stent is flush with the outer layer main body stent 9 of the second section branch tectorial membrane stent, the proximal end of the outer layer main body support 12 of the third-section branch tectorial membrane support is connected with the distal end anchoring area of the lower layer support 11 of the second-section branch tectorial membrane support in an anchoring manner, the distal end of the upper layer branch support 13 of the third-section branch tectorial membrane support extends into the left subclavian artery blood vessel 4, the distal end of the lower layer support 14 of the third-section branch tectorial membrane support extends to the arch part, the proximal end of the fourth-section tectorial membrane support 15 is connected with the distal end anchoring area of the lower layer support 14 of the third-section branch tectorial membrane support in an anchoring manner, and the distal end of the fourth-section tectorial membrane support 15 extends into the descending aorta 5.
Further, the diameters of the lower-layer brackets from the first-section branch tectorial membrane bracket to the third-section branch tectorial membrane bracket are all larger than the diameter of the upper-layer branch bracket, and the sum of the diameters of the lower-layer bracket and the upper-layer branch bracket is equal to the diameter of the outer-layer main body bracket.
Further, a metal mark 17 is arranged on an anchoring area of the distal end of the lower-layer support from the first-section branch tectorial membrane support to the third-section branch tectorial membrane support, the distance between the metal mark 17 and the distal end of the lower-layer support is 2-3cm, the proximal end of the outer-layer main body support 9 of the second-section branch tectorial membrane support is anchored at the metal mark 17 of the lower-layer support 8 of the first-section branch tectorial membrane support, the proximal end of the outer-layer main body support 12 of the third-section branch tectorial membrane support is anchored at the metal mark 17 of the lower-layer support 11 of the second-section branch tectorial membrane support, and the proximal end of the fourth-section tectorial membrane support 15 is anchored at the metal mark 17 of the distal end of the lower-layer support 14 of the third-section branch tectorial membrane support.
Further, the diameter of the proximal end of the outer layer main body stent 9 of the second-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 8 of the first-section branch stent graft, the diameter of the proximal end of the outer layer main body stent 12 of the third-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 11 of the second-section branch stent graft, and the diameter of the proximal end of the fourth-section stent graft 15 is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 14 of the third-section branch stent graft.
Further, the proximal ends of the outer body stents of the first to third branch stent-grafts are provided with sheds 18 for anchoring.
Further, the proximal end of the fourth stent graft 15 is provided with an umbrella skirt 18 for anchoring.
Further, the sectional aortic branch type tectorial membrane stent is made of a polymer film.
Embodiment four: a segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support, the third section branch tectorial membrane support, the fourth section tectorial membrane support 15, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support, the outer layer main body support and the fourth section tectorial membrane support 15 all comprise a near-heart end and a far-heart end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing manner, the upper layer branch support and the lower layer support are mutually connected in a sewing manner, the far-heart ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with an anchoring area, the outer layer main body stent 6 of the first section branch tectorial membrane stent is placed in the ascending aorta vessel 1, the distal end of the upper layer branch stent 7 of the first section branch tectorial membrane stent extends into the innominate artery vessel 2, the distal end of the lower layer stent 8 of the first section branch tectorial membrane stent is flush with the distal end of the outer layer main body stent 6 of the first section branch tectorial membrane stent, the proximal end of the outer layer main body stent 9 of the second section branch tectorial membrane stent is connected with the distal end anchoring area of the lower layer stent 8 of the first section branch tectorial membrane stent in an anchoring manner, the distal end of the upper layer branch stent 10 of the second section branch tectorial membrane stent extends into the left common carotid vessel 3, the distal end of the lower layer stent 11 of the second section branch tectorial membrane stent is flush with the outer layer main body stent 9 of the second section branch tectorial membrane stent, the proximal end of the outer layer main body support 12 of the third-section branch tectorial membrane support is connected with the distal end anchoring area of the lower layer support 11 of the second-section branch tectorial membrane support in an anchoring manner, the distal end of the upper layer branch support 13 of the third-section branch tectorial membrane support extends into the left subclavian artery blood vessel 4, the distal end of the lower layer support 14 of the third-section branch tectorial membrane support extends to the arch part, the proximal end of the fourth-section tectorial membrane support 15 is connected with the distal end anchoring area of the lower layer support 14 of the third-section branch tectorial membrane support in an anchoring manner, and the distal end of the fourth-section tectorial membrane support 15 extends into the descending aorta 5.
Further, the diameters of the lower-layer brackets from the first-section branch tectorial membrane bracket to the third-section branch tectorial membrane bracket are all larger than the diameter of the upper-layer branch bracket, and the sum of the diameters of the lower-layer bracket and the upper-layer branch bracket is equal to the diameter of the outer-layer main body bracket.
Further, a metal mark 17 is arranged on an anchoring area of the distal end of the lower-layer stent of the first-section branch stent graft to the third-section branch stent graft, the distance between the metal mark 17 and the distal end of the lower-layer stent graft is 2-3cm, the proximal end of the outer-layer main body stent 9 of the second-section branch stent graft is anchored at the metal mark 17 of the lower-layer stent 8 of the first-section branch stent graft, the proximal end of the outer-layer main body stent 12 of the third-section branch stent graft is anchored at the metal mark 17 of the lower-layer stent 11 of the second-section branch stent graft, and the proximal end of the fourth-section stent graft 15 is anchored at the distal-end metal mark 17 of the lower-layer stent 14 of the third-section branch stent graft.
Further, the diameter of the proximal end of the outer layer main body stent 9 of the second-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 8 of the first-section branch stent graft, and the diameter of the proximal end of the outer layer main body stent 12 of the third-section branch stent graft is 20% -30% larger than the diameter of the metal mark 17 of the lower layer stent 11 of the second-section branch stent graft.
Further, gaps are formed at the joints of the outer layer main body supports, the upper layer branch supports and the lower layer supports of the first section branch tectorial membrane support to the third section branch tectorial membrane support, fillers 16 are filled in the gaps, and the fillers 16 are made of sealing materials.
Further, the proximal ends of the outer body stents of the first to third branch stent-grafts are provided with sheds 18 for anchoring.
Further, the proximal end of the fourth stent graft 15 is provided with an umbrella skirt 18 for anchoring.
Further, the sectional aortic branch type tectorial membrane stent is made of a polymer film.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. A segmented aortic branch stent graft, comprising: the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support, the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively composed of an outer layer main body support and an inner layer branch support, wherein the inner layer branch support comprises an upper layer branch support and a lower layer support, the upper layer branch support, the lower layer support and the outer layer main body support all comprise a near-heart end and a telecentric end, the near-heart ends of the upper layer branch support and the lower layer support are respectively connected with the near-heart end of the outer layer main body support in a sewing way, the upper layer branch support and the lower layer support are connected with each other in a sewing way, the telecentric ends of the lower layer supports of the first section branch tectorial membrane support, the second section branch tectorial membrane support and the third section branch tectorial membrane support are respectively provided with anchoring areas, the outer layer main body support of the first section branch tectorial membrane support is placed in an ascending aorta vessel, the distal end of the upper branch stent graft of the first section extends into the innominate arterial vessel, the distal end of the lower branch stent graft of the first section is flush with the distal end of the outer body stent graft of the first section, the proximal end of the outer body stent graft of the second section is connected with the distal end anchoring zone of the lower branch stent graft of the first section in an anchoring manner, the distal end of the upper branch stent graft of the second section extends into the left common carotid vessel, the distal end of the lower branch stent graft of the second section is flush with the outer body stent graft of the second section, the proximal end of the outer body stent graft of the third section is connected with the distal end anchoring zone of the lower branch stent graft of the second section in an anchoring manner, the distal end of the upper-layer branch stent of the third-section branch stent-graft extends into the left subclavian artery vessel, and the distal end of the lower-layer branch stent-graft extends into the arch or descending aorta.
2. The segmented aortic branch stent graft of claim 1, wherein the diameter of the lower stent graft of the first to third branch stent grafts is greater than the diameter of the upper stent graft, and the sum of the diameter of the lower stent graft and the diameter of the upper stent graft is less than or equal to the diameter of the outer body stent graft.
3. The segmented aortic branch stent graft of claim 1, wherein the distal anchor region of the lower stent is provided with a metallic mark which is 2-3cm from the distal end of the lower stent, the proximal end of the outer main body stent of the second branch stent graft is anchored to the metallic mark of the lower stent of the first branch stent graft, and the proximal end of the outer main body stent of the third branch stent graft is anchored to the metallic mark of the lower stent of the second branch stent graft.
4. A segmented aortic branch stent graft as claimed in claim 3, wherein the diameter of the proximal end of the outer body stent of the second-segment branched stent graft is 20% -30% greater than the diameter of the metal marker of the lower body stent of the first-segment branched stent graft, and the diameter of the proximal end of the outer body stent of the third-segment branched stent graft is 20% -30% greater than the diameter of the metal marker of the lower body stent of the second-segment branched stent graft.
5. The segmented aortic branch stent graft of claim 1, wherein the outer body stent, the upper branch stent and the lower branch stent of the first to third branch stent grafts are provided with slits at the joints, and the slits are filled with filler, and the filler is a sealing material.
6. A segmented aortic branch stent graft according to any one of claims 1 to 5, wherein the proximal ends of the outer body struts of the first to third branch stent grafts are provided with sheds for anchoring.
7. A segmented aortic branch stent graft as claimed in claim 3, further comprising a fourth segment stent graft comprising a proximal end and a distal end, wherein the distal anchoring zone of the lower stent of the third segment stent graft is provided with a metallic mark, the proximal end of the fourth segment stent graft is anchored to the metallic mark of the distal end of the lower stent of the third segment stent graft, the distal end of the fourth segment stent graft extends into the descending aorta, and the proximal end of the fourth segment stent graft has a diameter 20% -30% greater than the diameter of the metallic mark of the lower stent of the third segment stent graft.
8. The segmented aortic branch stent graft of claim 7, wherein the proximal end of the fourth segment of stent graft is provided with a sheds for anchoring.
9. The segmented aortic branch stent graft of claim 1, wherein the segmented aortic branch stent graft is a polymeric membrane.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107748A2 (en) * | 2013-01-04 | 2014-07-10 | W.L. Gore & Associates, Inc. | Implantable intralumenal device |
| CN205924246U (en) * | 2016-03-21 | 2017-02-08 | 中国医科大学附属第一医院 | Release of aortic aneurysm blood vessel support |
| WO2017203056A1 (en) * | 2016-05-26 | 2017-11-30 | Swiss Capital – Engineering Ag | A vascular medical device and system |
| CN208525134U (en) * | 2018-02-09 | 2019-02-22 | 戴向晨 | A kind of novel sectional aortic branch type overlay film frame |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7887575B2 (en) * | 2002-05-22 | 2011-02-15 | Boston Scientific Scimed, Inc. | Stent with segmented graft |
| US10357353B2 (en) * | 2012-04-12 | 2019-07-23 | Sanford Health | Combination double-barreled and debranching stent grafts and methods for use |
| US10368977B2 (en) * | 2015-12-29 | 2019-08-06 | Cook Medical Technologies Llc | Endograft with at least two branch portions |
-
2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107748A2 (en) * | 2013-01-04 | 2014-07-10 | W.L. Gore & Associates, Inc. | Implantable intralumenal device |
| CN205924246U (en) * | 2016-03-21 | 2017-02-08 | 中国医科大学附属第一医院 | Release of aortic aneurysm blood vessel support |
| WO2017203056A1 (en) * | 2016-05-26 | 2017-11-30 | Swiss Capital – Engineering Ag | A vascular medical device and system |
| CN208525134U (en) * | 2018-02-09 | 2019-02-22 | 戴向晨 | A kind of novel sectional aortic branch type overlay film frame |
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