CN212630955U - Modular type abdominal aorta bifurcation type tectorial membrane stent - Google Patents
Modular type abdominal aorta bifurcation type tectorial membrane stent Download PDFInfo
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- CN212630955U CN212630955U CN202020220288.4U CN202020220288U CN212630955U CN 212630955 U CN212630955 U CN 212630955U CN 202020220288 U CN202020220288 U CN 202020220288U CN 212630955 U CN212630955 U CN 212630955U
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- abdominal aorta
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- iliac artery
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- 210000000702 aorta abdominal Anatomy 0.000 title claims abstract description 59
- 210000002489 tectorial membrane Anatomy 0.000 title abstract description 10
- 210000003090 iliac artery Anatomy 0.000 claims abstract description 47
- 210000000709 aorta Anatomy 0.000 claims description 13
- 230000003187 abdominal effect Effects 0.000 claims description 11
- 238000002513 implantation Methods 0.000 claims description 5
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 2
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000003902 lesion Effects 0.000 abstract description 4
- 208000031481 Pathologic Constriction Diseases 0.000 abstract description 3
- 230000036262 stenosis Effects 0.000 abstract description 3
- 208000037804 stenosis Diseases 0.000 abstract description 3
- 210000003484 anatomy Anatomy 0.000 abstract description 2
- 230000036285 pathological change Effects 0.000 abstract description 2
- 231100000915 pathological change Toxicity 0.000 abstract description 2
- 230000001435 haemodynamic effect Effects 0.000 abstract 1
- 210000001367 artery Anatomy 0.000 description 8
- 239000002473 artificial blood Substances 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 230000000004 hemodynamic effect Effects 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a modular abdominal aorta bifurcation type tectorial membrane support, be used for planting in abdominal aorta, second end in first side iliac artery including first end first support module and with first support module cooperation is connected and is used for planting in the second side iliac artery's second support module. The utility model provides a modular abdominal aorta bifurcation type tectorial membrane support accords with abdominal aorta and the structure of two side iliac arteries, accords with abdominal aorta and iliac artery's anatomical structure and haemodynamics, and the stenosis and the block lesion of processing abdominal aorta bifurcation department that can be better satisfy the treatment method of using the wicresoft intracavity and treat the terminal pathological change that reaches two side iliac arteries starting department of abdominal aorta simultaneously, have improved the convenience of operation, have reduced the operation hidden danger.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to modular abdominal aorta bifurcation type tectorial membrane support.
Background
The traditional surgical treatment method for treating the stenosis or occlusive lesion at the abdominal active bifurcation at present is to perform abdominal aorta-iliac artery artificial blood vessel circumfluence by opening the abdomen.
The biggest defect of the abdominal aorta-iliac artery artificial blood vessel circumfluence is that the wound is large, general anesthesia and an open abdominal operation are needed, and the operative complications and the perioperative period have high mortality rate. At present, the minimally invasive intracavity treatment method for treating the stenosis or occlusive lesion at the abdominal active bifurcation is to implant a kissing stent in the tail end of the abdominal aorta and the iliac arteries at both sides. The method for the treatment of the implantation of the anastomotic stent has the defects that no stent suitable for the diameter of the abdominal aorta exists, two stents suitable for the diameter of the iliac artery are arranged in the abdominal aorta in parallel, the method is not suitable for the anatomical structure and the hemodynamics of the abdominal aorta, the long-term patency rate is low, the mountain-turning operation of the future intracavity treatment cannot be carried out, and hidden troubles are brought to the secondary treatment of the lesions of the abdominal aorta and the lower limb arteries.
Therefore, how to improve the operation convenience of the abdominal aorta-iliac artery artificial blood vessel circumfluence and reduce the operation hidden trouble becomes a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modular aorta abdominalis bifurcate type tectorial membrane support, this tectorial membrane support accords with the dissection result and the hemodynamics of aorta abdominalis and iliac artery, improves the operation convenience of aorta abdominalis-iliac artery artificial blood vessel reposition of redundant personnel art and reduces the operation hidden danger.
In order to achieve the above object, the present invention provides a modular type aorta abdominalis type covered stent, which comprises a first end used for being planted in the aorta abdominalis, a second end used for being planted in the first side iliac artery and a second stent module matched with and connected with the first stent module and used for being planted in the second side iliac artery.
Optionally, the first end of the first stent module is an abdominal aorta stent with an equal diameter, the second end of the first stent module is a first iliac artery stent with an equal diameter, and the sum of the diameters of the first iliac artery stent and the second stent module is equal to the diameter of the abdominal aorta stent; and the second stent module and the first iliac artery stent are arranged at the same end of the abdominal aorta stent.
Optionally, the first iliac artery stent and the second stent module are equal in diameter.
Optionally, the abdominal aortic stent is integrally provided with the first iliac stent.
Optionally, the first rack module and the second rack module are provided with an overlapping assembly area which is matched with each other, and the overlapping assembly area is provided with a positioning mechanism.
Optionally, the length of the abdominal aorta stent for implantation in the abdominal aorta is 40-60 mm.
Optionally, the first iliac artery stent and the second stent module are equal in length and are both 60-80 mm.
Optionally, the first stent module and the second stent module each include a stent framework and a covering film disposed on an outer surface of the stent framework.
Optionally, the stent framework is a nickel-titanium alloy stent, and the covering membrane is an expanded polytetrafluoroethylene covering membrane.
Compared with the prior art, the utility model provides a modular abdominal aorta branching type tectorial membrane support includes first support module and second support module, and the second end stroke of the relative first support module of second support module and first support module divides piece or branching formula design, and the first end of first support module can be planted in the end of abdominal aorta. The second end of the first support module can be planted at the starting end of the first side iliac artery connected with the tail end of the abdominal aorta, the diameter of the first support module meets the requirement of the abdominal aorta, and the second support module can be matched and connected with the first support module and can be planted at the starting end of the second side iliac artery connected with the tail end of the abdominal aorta. Through the forked design of above-mentioned modular abdominal aorta forked type tectorial membrane support, accord with the structure and the hemodynamics of abdominal aorta bifurcation department, improve the unobstructed rate of blood, and then improved the operation convenience of abdominal aorta bifurcation department, reduced the hidden danger that later stage artery pathological change brought.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of a modular covered stent of the abdominal aortic bifurcation according to an embodiment of the present invention.
Wherein:
1-a first stent module, 11-an abdominal aorta stent, 12-a first iliac artery stent, 2-a second stent module, 3-an overlapping assembly region.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic view illustrating a modular type aorta-abdominalis bifurcation stent according to an embodiment of the present invention.
The utility model provides a modular abdominal aorta bifurcation type tectorial membrane support includes first support module 1 and second support module 2, and the second end stroke of second support module 2 and first support module 1 relatively first support module 1 divides the piece or the bifurcated design, and the first end of first support module 1 can be planted in the end of abdominal aorta. The second end of the first stent module 1 can be implanted at the beginning of the first side iliac artery connected with the tail end of the abdominal aorta, the diameter of the first stent module is set to meet the requirement of the abdominal aorta, and the second stent module 2 can be connected with the first stent module 1 in a matched manner and can be implanted at the beginning of the second side iliac artery connected with the tail end of the abdominal aorta. When the artificial blood vessel diversion operation is carried out, the first end of the first stent module 1 is implanted at the first end of the abdominal aorta through a minimally invasive incision, the second end of the first stent module 1 is implanted at the starting end of the first side iliac artery communicated with the tail end of the abdominal aorta to fix the first stent module 1, then the second stent module 2 is implanted at the starting end of the second side iliac artery communicated with the abdominal aorta, and the second stent module 2 is connected with the first stent module 1; the diameter of the second end of the first support module 1 and the diameter of the second support module 2 meet the supporting requirements of the first side iliac artery and the second side iliac artery respectively, and the diameter of the first end of the first support module 1 meets the supporting requirements of the abdominal aorta support 11, so that the patency rate of the bifurcation of the abdominal aorta and the iliac artery (the first side iliac artery and the second side iliac artery) is ensured, the operation convenience is improved, and the postoperative hidden danger is reduced.
The modular type aorta abdominalis bifurcation stent provided by the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.
In the embodiment of the present invention as shown in fig. 1, the two ends of the first stent module 1 comprise two cylindrical sections, in other words, the first end of the first stent module 1 is an abdominal aorta stent 11 with a larger diameter and used for being implanted at the end of the abdominal aorta, the second end is a first iliac artery stent 12 with a smaller diameter and used for being implanted at the beginning of the first iliac artery at the end of the communicating abdominal aorta, the diameter of the second stent module 2 is used for being implanted at the beginning of the second iliac artery at the end of the communicating abdominal aorta, the first iliac artery stent 12 and the second stent module 2 are disposed at the same end of the abdominal aorta stent 11, and the sum of the diameters of the first iliac artery stent 12 and the second stent module 2 is generally set to be equal to the diameter of the aorta stent.
The first iliac artery stent 12 and the second stent module 2 form a bifurcated design relative to the abdominal aorta stent 11, so that the stent implanted at the bifurcation of the abdominal aorta can be fully supported by each section of stent. It should be noted that the abdominal aorta stent 11, the first iliac artery stent 12 and the second stent module 2 can ensure the smooth blood circulation; the utility model discloses a key point lies in not the concrete structure of each support, but lies in that the support of modular and forked formula design and each section can fully support the artery of corresponding section to improve the operation convenience, reduce the hidden danger of performing the operation.
Since the first and second iliac arteries on both sides of the distal bifurcation of the abdominal aorta are generally similar in size, the diameters of the first and second iliac stents 12 and 12 are generally set equal. And in order to improve the convenience of implantation of the modular type aorta-abdominalis bifurcation stent, in the utility model provides an embodiment, the first iliac artery stent 12 and the aorta-abdominalis stent 11 adopt an integrated form, and the second stent module 2 can be assembled with the first stent module 1 and the aorta-abdominalis stent 11 in a solid manner, so that the second stent module 2 and the first iliac artery stent 12 are connected in parallel at the end of the aorta-abdominalis stent 11.
Specifically, the matching connection part of the abdominal aorta stent 11 and the second stent module 2 is provided with an overlapping assembly area 3, and the two are connected and assembled through the overlapping assembly area 3, so that the reliability of the modular type abdominal aorta bifurcation type covered stent connection is improved.
Further, in order to ensure that the assembly is in place, a positioning mechanism which is matched with the overlapping assembly area 3 can be arranged in the overlapping assembly area 3, so that the overlapping assembly area 3 is prevented from being installed in place. For example, the overlapping assembly regions 3 respectively disposed on the abdominal aorta stent 11 and the second stent module 2 may be assembled by nesting, the positioning mechanism may be a mechanism in which an annular positioning rib and a positioning groove are matched to realize stop positioning, or a mechanism in which a positioning protrusion and a positioning hole are matched to be adopted as required. The positioning mechanism and the assembly connection between the first stent module 1 and the abdominal aortic stent 11 are not important for the protection of the present application, and the structure thereof can be set by referring to the existing positioning mechanism and the transition structure between the stents.
Considering the need of the abdominal aorta-iliac artery artificial blood vessel transflow operation and the structure and size of the human abdominal aorta and iliac artery bifurcation, the length of the abdominal aorta stent 11 for implantation is set between 40-60 mm, and the length of the first iliac artery stent 12 and the second stent module 2 (or called as second iliac artery stent) is set between 60-80 mm. The diameter of the abdominal aorta stent 11 is set between 16 mm and 20mm, the diameters of the first iliac artery stent 12 and the second stent module 2 are set between 8 mm and 10mm, and the sum of the diameters of the first iliac artery stent 12 and the second stent module 2 is guaranteed to be equal to or slightly smaller than the diameter of the abdominal aorta stent 11.
The diameters of the overlapping assembly areas 3 of the abdominal aorta stent 11 and the second stent module 2 are equal to the diameter of the second stent module 2, and the length is 20mm, so that the connection strength between the first stent module 1 and the second stent module 2 can be satisfied.
In the above embodiment, the first stent module 1 and the second stent module 2 are both membrane-covered stents, and include a stent framework and a membrane covering outside the stent framework, the stent framework can select a titanium-nickel alloy stent with better biocompatibility, the membrane can select an expanded polytetrafluoroethylene film as required, the titanium-nickel alloy and the expanded polytetrafluoroethylene are both existing materials, the stent membrane can be realized by conventional techniques, and only the smoothness of blood inside the stent needs to be ensured.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The modular type aorta abdominalis bifurcation stent provided by the present invention is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A modular type aorta abdominalis bifurcation type covered stent is characterized by comprising a first stent module (1) and a second stent module, wherein the first end of the first stent module is used for being implanted in the aorta abdominalis, the second end of the first stent module is used for being implanted in a first side iliac artery, and the second stent module (2) is matched and connected with the first stent module (1) and is used for being implanted in a second side iliac artery;
the first end of the first stent module (1) is an abdominal aorta stent (11) with the same diameter, the second end of the first stent module (1) is a first iliac artery stent (12) with the same diameter, and the sum of the diameters of the first iliac artery stent (12) and the second stent module (2) is equal to the diameter of the abdominal aorta stent (11); and the second stent module (2) and the first iliac artery stent (12) are arranged at the same end of the abdominal aorta stent (11).
2. The modular aortic-bifurcation stent according to claim 1, wherein the first iliac stent (12) and the second stent module (2) have the same diameter.
3. The modular aortic bifurcation stent according to claim 2, characterized in that the abdominal aortic stent (11) is integrally provided with the first iliac stent (12).
4. Modular stent graft according to claim 3, characterised in that the first stent module (1) and the second stent module (2) are provided with cooperating overlapping assembly areas (3), the overlapping assembly areas (3) being provided with positioning means.
5. The modular type aorta abdominalis bifurcation stent according to claim 4, wherein the aorta abdominalis stent (11) has a length of 40-60 mm for implantation in the aorta abdominalis.
6. The modular aortic-bifurcation stent according to claim 5, wherein the first iliac stent (12) and the second stent module (2) have equal length and are each 60-80 mm.
7. A modular aortic-bifurcation stent according to any one of claims 1 to 6, wherein the first stent module (1) and the second stent module (2) each comprise a stent framework and a graft provided on the outer surface of the stent framework.
8. The modular aortic-abdominal bifurcation stent according to claim 7, wherein the stent framework is a nitinol stent and the stent is an expanded polytetrafluoroethylene stent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220288.4U CN212630955U (en) | 2020-02-27 | 2020-02-27 | Modular type abdominal aorta bifurcation type tectorial membrane stent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220288.4U CN212630955U (en) | 2020-02-27 | 2020-02-27 | Modular type abdominal aorta bifurcation type tectorial membrane stent |
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| CN212630955U true CN212630955U (en) | 2021-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117653405A (en) * | 2023-11-29 | 2024-03-08 | 首都医科大学附属北京友谊医院 | Ball-expanding type tectorial membrane stent for arterial occlusion |
-
2020
- 2020-02-27 CN CN202020220288.4U patent/CN212630955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117653405A (en) * | 2023-11-29 | 2024-03-08 | 首都医科大学附属北京友谊医院 | Ball-expanding type tectorial membrane stent for arterial occlusion |
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