CN107320216B - A integral type support for main iliac artery - Google Patents

A integral type support for main iliac artery Download PDF

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Publication number
CN107320216B
CN107320216B CN201710644952.0A CN201710644952A CN107320216B CN 107320216 B CN107320216 B CN 107320216B CN 201710644952 A CN201710644952 A CN 201710644952A CN 107320216 B CN107320216 B CN 107320216B
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stent
main
iliac artery
branch
metal
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CN107320216A (en
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周建
魏小龙
孙羽东
景在平
赵志青
朱江
吴雅妮
毛华娟
高斌
谢永富
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Shanghai Changhai Hospital
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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
    • A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
    • 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
    • A61F2002/065—Y-shaped blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The integrated stent for the main iliac artery comprises a metal stent and a coating layer, wherein the metal stent is provided with a main part, a first branch part and a second branch part which are communicated with each other, the integrated Y-shaped matched with the shape of the inner cavity of the main iliac artery, and the coating layer is arranged on the metal stent, and the metal stent is a tubular stent woven by metal wires. Because the split type stent is used in the main iliac artery in the past, and the integrated stent for the main iliac artery is an integrated stent specially used for main iliac artery occlusion intracavity treatment, the main part, the first branch part and the second branch part are connected into a whole, so that the whole stent is stabilized, and the stent can be prevented from being displaced under the high-speed impact of blood flow; in addition, because the main iliac artery occlusion lesion range is large, the stent can ensure complete isolation of lesions on the premise of safe and effective release, and simultaneously does not influence the intracavity treatment of subsequent distal lesions.

Description

A integral type support for main iliac artery
Technical Field
The invention belongs to the field of medical treatment, and particularly relates to an integrated stent for a main iliac artery.
Background
The main iliac artery occlusive disease refers to an arteriosclerotic disease affecting the distal end of abdominal aorta, as shown in fig. 2, the disease can cross the bifurcation of aorta and affect the bilateral iliac arteries, and patients can have clinical manifestations of visceral ischemia, lower limb ischemia or necrosis. According to the second edition of the cooperative tissue consensus for Panaxacia (TACSI) guidelines, the main iliac artery occlusion belongs to lesions above grade B. Intraluminal treatment is recommended for grade B lesions and open surgery is recommended for grade C, D lesions. With the continuous development of intraluminal techniques and the continuous updating of interventional devices, more and more severe aortic artery occlusive lesions can be treated using endovascular techniques or hybrid surgery. The choice of treatment regimen should be considered in combination with the severity of the citrus lesion, the overall general condition of the patient, and the skill level of the referring physician.
Three ways of access selection are provided when the intracavity treatment is carried out on the lower limb artery lesion, namely, retrograde puncture is carried out through the femoral artery on the same side. The second is by contralateral femoral artery retrograde puncture and "mountain-turning" technique (as shown in fig. 4). Thirdly, puncture through brachial artery. A potential drawback of the ipsilateral retrograde approach is the difficulty of puncture because the femoral artery distal to the occlusion is often inaccessible to pulsation, requiring the application of bony marker localization or ultrasound guided puncture if not accessible via this approach. Secondly, the approach operation is not easy to enter the true lumen at the aortic bifurcation site when the guide wire enters the subintimal membrane. Thirdly, the blood flow of the lesion part can be influenced by the compression hemostasis after the antegrade puncture. Although puncture techniques may sometimes be used to guide the guidewire back into the aortic true lumen, other approaches are generally preferred. Entry by the contralateral retrograde puncture "hill-turning" technique is the most common method. The 'mountain-turning' technology has the advantages of easy puncture, less complication, capability of treating the pathological changes at the proximal end of the superficial femoral artery and difficulty in causing the ischemia of the lower limb at the affected side by pressing the limb at the opposite side after the operation.
The intracavity interventional operation has the advantages of small wound, short hospitalization time and the like. The abdominal main-double iliac (femoral) artery artificial blood vessel bypass transplantation is mainly adopted for the complicated long-section main iliac artery occlusion, but the age of most patients is high, the general condition of the body is poor, the trauma of the surgical operation is large, the perioperative death rate and the postoperative complication incidence rate are high, and the application of the surgical operation is limited. The purpose of the intracavity interventional therapy is to recover the blood flow of the main iliac artery, and the complicated long-section main iliac artery occlusion is almost all serious non-thrombotic stenosis or occlusion at the bifurcation part of the abdominal aorta, and if only one side of the iliac artery is subjected to balloon dilatation or stent forming, the problems of angulation of blood vessels, obstruction of the blood flow on the opposite side and the like are easily caused, so that the osculating stent forming operation is advocated clinically and a good treatment effect is obtained. The anastomosis stent technology has the advantages of small longitudinal contraction, easy release and positioning, capability of reducing the unmatched area of the stent and the blood vessel per se to the maximum extent, reduction of turbulence and extravasated blood, increase of the patency rate of the blood vessel and the like. However, restenosis following surgery remains one of its major complications. This technique still has some limitations because it is difficult to open a stenosis by a lateral turn-up in the case of restenosis in the distal stent. However, the best mode for treating the diseases through the intracavity interventional operation is to use an integrated stent, the integrated stent shown in fig. 3 can restore the anatomical structure at the abdominal aorta bifurcation to the maximum extent, the anatomical fixing mode provides longitudinal supporting force to fix the stent by means of the natural anatomical structure at the aorta bifurcation, the probability that the stent is displaced towards the far end is greatly reduced, the stent can be tightly attached to the vessel wall, and internal leakage is prevented. Meanwhile, the hemodynamics in the integrated stent is closer to the natural physiological state, which is not only beneficial to the blood perfusion of the tissue organ at the far end, but also beneficial to reducing the incidence rate of restenosis in the stent. More importantly, once stenosis occurs in the stent or a distal limb artery is diseased, the integrated stent does not influence the contralateral mountain-turning technology to treat the unilateral limb blood vessel. At present, an integrated stent for treating main iliac artery occlusion is not available.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an integrated stent for intraluminal treatment which ensures complete coverage of a lesion while not affecting subsequent distal lesions on the premise of safe and effective release in the treatment of a major iliac artery occlusion disease.
The invention provides an integrated stent for a main iliac artery, which is characterized by comprising a metal stent, wherein the metal stent is provided with a main part, a first branch part and a second branch part positioned on the opposite side of the first branch part; and the coating layer is arranged on the metal support, the metal support is a tubular support formed by weaving metal wires, one end of the trunk part is respectively communicated with the end parts of the first branch part and the second branch part to form an integrated Y shape matched with the shape of the inner cavity of the main iliac artery, and the trunk part, the first branch part and the second branch part are communicated with each other.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein, the material of the coating layer is expanded polytetrafluoroethylene or fluorinated ethylene propylene.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: when the metal wire is combined with the coating layer, the metal wire is positioned at the outer side, the inner side or any one of the two layers of the coating layer.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein, the metal support is a round tube-shaped support formed by weaving metal wires, the outer diameter of the trunk part is 14-20 mm, and the length is 20-60 mm.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein, the diameter of the first branch part is 6-10 mm, and the length is 40-100 mm.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: the connecting part of the first branch part and the second branch part is provided with a plurality of metal mark points, and the metal mark points are used for marking the positions of the end parts of the main part, the first branch part and the second branch part and the position of the connecting part of the first branch part and the second branch part in the perspective process.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein, the metal wire is made of nickel-titanium alloy.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein the lengths of the first branch portion and the second branch portion are the same.
In addition, in the integrated stent for the main iliac artery provided by the invention, the integrated stent can also have the following characteristics: wherein the lengths of the first branch part and the second branch part are different.
Action and Effect of the invention
The integrated stent for the main iliac artery occlusion lesion comprises a metal stent, wherein the metal stent is provided with a main part, a first branch part and a second branch part positioned on the opposite side of the first branch part, one end of the main part is respectively communicated with the end parts of the first branch part and the second branch part to form an integrated Y shape matched with the shape of an inner cavity of the main iliac artery, and the main part, the first branch part and the second branch part are communicated with each other.
Because the main part, the first branch part and the second branch part are connected into a whole, the whole stent is stabilized, and the stent can be prevented from being displaced under the high-speed impact of blood flow.
In addition, since the conventional straight tubular stents used for peripheral arterial diseases are used in the main iliac artery occlusive lesions (including stenotic lesions), two or more than two covered stents or bare stents are required to be placed in parallel or in a cross mode during treatment, wherein the long-term patency rate of the bare stent implantation mode is not high, long-term restenosis and occlusion are easy to occur again, even serious ischemia occurs, a plurality of stents need to be implanted in the covered stent implantation mode, the cost is high, the original anatomical structure of the main iliac artery is changed, patients with the main iliac artery occlusive lesions usually have serious peripheral angiosclerosis lesions, the stents are implanted according to the mode, and the late treatment and patency rate of the patients are greatly influenced. The integrated stent can ensure complete coverage of lesion on the premise of safe and effective release, and simultaneously does not influence the intracavity treatment of subsequent distal lesion.
Drawings
FIG. 1 is a schematic exterior view of an integrated stent for the main iliac artery in an embodiment of the present invention;
FIG. 2 is a photograph of a schematic representation of a main iliac artery occlusion lesion in an embodiment of the present invention;
FIG. 3 is a photograph of a schematic representation of the use of an integrated stent in an embodiment of the present invention; and
figure 4 is a schematic illustration of a "mountain-flip" technique approach via contralateral femoral artery retrograde puncture.
Detailed Description
The main iliac artery occlusive disease refers to an arteriosclerotic disease affecting the distal end of abdominal aorta, as shown in fig. 2, the disease can cross the bifurcation of aorta and affect the bilateral iliac arteries, and patients can have clinical manifestations of visceral ischemia, lower limb ischemia or necrosis.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically describe the integrated stent of the main iliac artery.
Examples
The integrated stent 10 for the main iliac artery is a metal stent, and is a tubular stent woven by metal wires.
The integrated stent 10 comprises a main part 11, a first branch part 12, a second branch part 13, a plurality of metal mark points 14, a film coating layer, a nickel-titanium alloy barb and a sealing sleeve as shown in fig. 1.
One end of the trunk 11 is respectively communicated with the ends of the first branch part 12 and the second branch part 13, the second branch part 13 is positioned at the opposite side of the first branch part 12 to form an integrated Y shape (an inverted Y shape in the figure) matched with the shape of the main iliac artery inner cavity, and the trunk 11, the first branch part 12 and the second branch part 13 are communicated with each other.
In the embodiment, the metal stent is a round tube-shaped stent formed by weaving metal wires, the outer diameter of the trunk part 11 is 14-20 mm, and the length is 20-60 mm; the first branch part 12 has an outer diameter of 6 to 10mm and a length of 40 to 100 mm; the outer diameter of the second branch part 13 is 6-10 mm, and the length is 10-100 mm; the included angle between the first branch part 12 and the second branch part 13 is 30-60 degrees; the lengths of the first branch portion and the second branch portion may be the same; or may be different.
In the embodiment, the outer diameter of the trunk portion 11 is 18mm and the length is 25mm, and the outer diameter of the first branch portion 12 is 7mm and the length is 70 mm; the second branch part 13 has an outer diameter of 7mm and a length of 55 mm; the angle between the first branch portion 12 and the second branch portion 13 is 48 degrees.
The integrated stent 10 is a tubular stent woven by metal wires, in the embodiment, the integrated stent 10 is a ring stent woven by monofilaments, and the metal wires are made of nickel-titanium alloy.
A plurality of metal mark points 14 are arranged at the end parts of the main part 11, the first branch part 12 and the second branch part 13 and the joint of the first branch part 12 and the second branch part 13, and are used for marking the positions of the end parts of the main part 11, the first branch part 12 and the second branch part 13 and the position of the joint of the first branch part 12 and the second branch part 13 in the perspective process. In the embodiment, the number of the metal mark points 14 provided at the end of the trunk portion 11 is 2, the number provided at the end of the first branch portion 12 and the second branch portion 13 is 2, and the number provided at the connection portion of the first branch portion 12 and the second branch portion 13 is 1.
The coating layer is arranged on the metal support, and the material of the coating layer is expanded polytetrafluoroethylene or fluorinated ethylene propylene. Wherein, when the metal wire is combined with the coating layer, the metal wire can be positioned at the outer side, the inner side or between the two layers of the coating layer. In the embodiment, the coating layer is positioned on the outer side of the nickel-titanium alloy wire, and the material of the coating layer is expanded polytetrafluoroethylene.
The nickel-titanium alloy barb and a sealing sleeve are located at the end of the main portion 11, the sealing sleeve is used to tighten the main portion 11 on the front end of the delivery catheter, the material of the sealing sleeve is expanded polytetrafluoroethylene or fluorinated ethylene propylene, in the embodiment, the material of the sealing sleeve is expanded polytetrafluoroethylene.
When the stent is placed, the one-piece stent 10 is deployed from the anterior (aortic) end of the delivery catheter and towards the posterior (iliac) end as shown in fig. 3. The sealing sleeve is used to maintain the original position between the stent and the vessel wall.
Effects and effects of the embodiments
In the present embodiment, the trunk portion, the first branch portion, and the second branch portion of the integrated stent for the main iliac artery are integrally connected to stabilize the entire stent, so that the stent can be prevented from moving in the direct positions of the first branch portion, the second branch portion, and the trunk portion under the impact of high-speed blood flow.
The main iliac artery occlusion lesion range is large, the integrated stent of the embodiment can ensure complete coverage of lesions on the premise of safe and effective release, reconstruct a physiological main iliac bifurcation structure, adopt an operation method that a surgical instrument A shown in figure 4 enters the way through a contralateral retrograde puncture 'mountain-turning' technology without influencing the intracavity treatment of subsequent distal lesions, and reduce the pain of a patient because the 'mountain-turning' technology has the advantages of easy puncture, less complication, capability of treating the lesions at the proximal end of the superficial femoral artery and difficulty in causing ischemia of lower limbs at the affected side due to postoperative compression on the contralateral limbs.
In addition, the stent of the embodiment is provided with the film coating layer, so that the plugging range of the stent is expanded, and complete isolation of pathological changes is realized to the maximum extent.
Furthermore, the end parts of the main part and the branch part are respectively provided with a metal mark, so that the operation and the positioning are simple, and the bracket is easy to accurately release.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims (9)

1. An integrated stent for a main iliac artery, comprising:
a metal bracket having a stem portion, a first branch portion, and a second branch portion located opposite the first branch portion;
a film coating layer disposed on the metal support; and
a sealing sleeve for maintaining a position between the metal stent and a vessel wall,
wherein the metal stent is a tubular stent woven by metal wires,
the metal bracket is a round tube-shaped bracket woven by metal wires,
one end of the main part is respectively communicated with the end parts of the first branch part and the second branch part to form an integrated Y shape matched with the shape of the inner cavity of the main iliac artery,
the trunk portion, the first branch portion and the second branch portion are communicated with each other,
the end part of the main trunk part is provided with a metal mark point used for marking the position of the main trunk part in the perspective process,
the sealing sleeve is positioned at the other end of the main part and is made of expanded polytetrafluoroethylene or fluorinated ethylene propylene material,
the sealing sleeve is adapted to constrict the trunk portion at the forward end of the delivery catheter.
2. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
wherein, the metal wire is made of nickel-titanium alloy.
3. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
wherein the material of the coating layer is expanded polytetrafluoroethylene or fluorinated ethylene propylene.
4. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
when the metal wire is combined with the coating layer, the metal wire is positioned on the outer side, the inner side or sandwiched between the two coating layers.
5. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
wherein, the outer diameter of the main part is 14-20 mm, and the length is 20-60 mm.
6. The integrated stent for the main iliac artery of claim 5, wherein:
wherein, the external diameter of first branch portion is 6 ~ 10mm, and length is 40 ~ 100 mm.
7. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
the end parts of the first branch part and the second branch part and the joint of the first branch part and the second branch part are provided with a plurality of metal mark points which are used for marking the positions of the end parts of the first branch part and the second branch part and the joint of the first branch part and the second branch part in the perspective process.
8. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
wherein the lengths of the first branch portion and the second branch portion are the same.
9. The integrated stent for the main iliac artery as claimed in claim 1, wherein:
wherein the lengths of the first branch portion and the second branch portion are different.
CN201710644952.0A 2017-08-01 2017-08-01 A integral type support for main iliac artery Active CN107320216B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10857014B2 (en) * 2018-02-18 2020-12-08 Ram Medical Innovations, Llc Modified fixed flat wire bifurcated catheter and its application in lower extremity interventions
CN108553206A (en) * 2018-05-15 2018-09-21 中国医学科学院北京协和医院 Intravascular stent and blood vessel coating bracket
CN108836585B (en) * 2018-05-28 2021-07-30 上海长海医院 Y-shaped carotid stent with absorbable self-protruding membrane branch
CN110974483A (en) * 2019-12-10 2020-04-10 中国人民解放军陆军军医大学第一附属医院 Membrane-carried bifurcation stent for treating femoral artery opening lesion

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US6261316B1 (en) * 1999-03-11 2001-07-17 Endologix, Inc. Single puncture bifurcation graft deployment system
US6702847B2 (en) * 2001-06-29 2004-03-09 Scimed Life Systems, Inc. Endoluminal device with indicator member for remote detection of endoleaks and/or changes in device morphology
CN2675083Y (en) * 2004-01-06 2005-02-02 微创医疗器械(上海)有限公司 Stent graft for
CN101507666A (en) * 2008-02-11 2009-08-19 陈启星 Automatic flicking tubular blood vessel support after being pushed out from sleeve
JP5503001B2 (en) * 2009-07-31 2014-05-28 ヨーテック・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング One piece branch graft
CN201743799U (en) * 2010-08-08 2011-02-16 侯红军 Y-shaped aorta split pallial bracket
CN103598929B (en) * 2013-11-28 2016-04-20 先健科技(深圳)有限公司 Thoracic aorta covered bracket
CN203898496U (en) * 2014-05-19 2014-10-29 湖南埃普特医疗器械有限公司 Abdominal aorta stent
CN104706448B (en) * 2015-03-26 2017-03-08 黄连军 Overlay film frame and overlay film frame induction system
CN205041568U (en) * 2015-09-30 2016-02-24 韩新巍 Sealed mounting system of main common iliac artery tumour intracavity of type of falling Y integration

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