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CN112773417B - Plugging device - Google Patents

Plugging device
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CN112773417B
CN112773417BCN201911073105.9ACN201911073105ACN112773417BCN 112773417 BCN112773417 BCN 112773417BCN 201911073105 ACN201911073105 ACN 201911073105ACN 112773417 BCN112773417 BCN 112773417B
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marking
structures
marking structure
film
occluder
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CN112773417A (en
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王高波
张翠茹
陈贤淼
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Lifetech Scientific Shenzhen Co Ltd
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Abstract

Translated fromChinese

本发明涉及一种封堵器。该封堵器包括封堵框架,封堵框架包括第一封堵单元、第二封堵单元和腰部,腰部的两端分别连接第一封堵单元和第二封堵单元,第一封堵单元上设置有多个第一标记结构,第二封堵单元上设置有多个第二标记结构,腰部上设置有多个第三标记结构,在医学影像设备下的光源的至少一入射方向下,多个第一标记结构的几何中心连线呈直线,多个第二标记结构的几何中心连线呈直线,多个第三标记结构的几何中心连线呈直线,并且,多个第一标记结构、多个第二标记结构和多个第三标记结构在医学影像设备下的显影强度不同、显影大小和/或显影形状不同。在手术过程中能够判断该封堵器释放形态是否良好。

Figure 201911073105

The present invention relates to an occluder. The occluder includes a blocking frame, the blocking frame includes a first blocking unit, a second blocking unit and a waist, two ends of the waist are respectively connected to the first blocking unit and the second blocking unit, the first blocking unit A plurality of first marking structures are arranged on the upper part, a plurality of second marking structures are arranged on the second blocking unit, and a plurality of third marking structures are arranged on the waist. Under at least one incident direction of the light source under the medical imaging equipment, The connecting lines of the geometric centers of the plurality of first marking structures are straight lines, the connecting lines of the geometric centers of the plurality of second marking structures are straight lines, the connecting lines of the geometric centers of the plurality of third marking structures are straight lines, and the plurality of first marking structures , The multiple second marking structures and the multiple third marking structures have different developing strengths, different developing sizes and/or different developing shapes under the medical imaging device. During the operation, it can be judged whether the release form of the occluder is good.

Figure 201911073105

Description

Translated fromChinese
封堵器occluder

技术领域technical field

本发明涉及植入式医疗器械领域,特别是涉及一种封堵器。The invention relates to the field of implantable medical devices, in particular to an occluder.

背景技术Background technique

本部分提供的仅仅是与本公开相关的背景信息,其并不必然是现有技术。This section provides merely background information related to the present disclosure and is not necessarily prior art.

心脏封堵器是一种治疗先天性心脏缺损的植入式医疗器械。传统的心脏封堵器通常由形状记忆合金制成,形状记忆合金自身在数字减影血管造影机(Digital subtractionangiography,简称DSA)等医学影像设备下可视,在没有额外设置显影标记结构的情况下,亦可保证植入手术顺利进行。A cardiac occluder is an implantable medical device for the treatment of congenital heart defects. Traditional cardiac occluders are usually made of shape memory alloys. The shape memory alloys themselves can be visualized under medical imaging equipment such as digital subtraction angiography (DSA), without additional visualization marking structures. , but also to ensure the smooth operation of implantation.

然而,对于由高分子材料制成的可吸收封堵器,高分子材料自身在DSA等医学影像设备下不可视或可视性较差,难以保证手术顺利进行。尽管有的可吸收封堵器上设置几个显影点以辅助判断可吸收封堵器的大体位置,但在手术过程中很难通过显影点去判断封堵器释放后的形态是否良好,使得手术操作困难,并增加手术过程中的风险。However, for the absorbable occluder made of polymer material, the polymer material itself cannot be seen or has poor visibility under medical imaging equipment such as DSA, and it is difficult to ensure the smooth operation of the operation. Although some absorbable occluders are provided with several developing points to assist in judging the general position of the absorbable occluder, it is difficult to judge whether the shape of the occluder after release is good or not through the developing points during the operation, which makes the operation difficult. Difficult to maneuver and increase risk during surgery.

发明内容SUMMARY OF THE INVENTION

基于此,有必要提供一种能够在手术过程中判断释放形态是否良好的封堵器。Based on this, it is necessary to provide an occluder that can judge whether the release form is good during the operation.

一种封堵器,包括封堵框架,所述封堵框架包括第一封堵单元、第二封堵单元和腰部,所述腰部的两端分别连接所述第一封堵单元和所述第二封堵单元,所述第一封堵单元上设置有多个第一标记结构,所述第二封堵单元上设置有多个第二标记结构,所述腰部上设置有多个第三标记结构,在医学影像设备下的光源的至少一入射方向下,所述多个第一标记结构的中心连线呈直线,所述多个第二标记结构的中心连线呈直线,所述多个第三标记结构的中心连线呈直线,并且,所述多个第一标记结构、所述多个第二标记结构和所述多个第三标记结构在医学影像设备下的显影强度不同、显影大小不同和/或显影形状不同。An occluder, comprising an occlusion frame, the occlusion frame comprising a first occlusion unit, a second occlusion unit and a waist, two ends of the waist are respectively connected to the first occlusion unit and the first occlusion unit Two blocking units, the first blocking unit is provided with a plurality of first mark structures, the second blocking unit is provided with a plurality of second mark structures, and the waist is provided with a plurality of third marks structure, in at least one incident direction of the light source under the medical imaging device, the center connecting lines of the plurality of first marking structures are straight lines, the center connecting lines of the plurality of second marking structures are straight lines, and the plurality of second marking structures are straight lines. The center connecting line of the third marking structure is a straight line, and the plurality of first marking structures, the plurality of second marking structures and the plurality of third marking structures have different developing intensities under medical imaging equipment, and Different sizes and/or different developed shapes.

在其中一个实施例中,所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同,且所述第一标记结构、所述第二标记结构和所述第三标记结构的厚度不同。In one of the embodiments, the densities of the materials of the first marking structure, the second marking structure and the third marking structure are different, and the first marking structure, the second marking structure and the The thicknesses of the third marking structures are different.

在其中一个实施例中,当所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同时,所述第一标记结构、所述第二标记结构和所述第三标记结构的之间的厚度差至少为80微米;并且,所述第一标记结构、所述第二标记结构和所述第三标记结构中的任一个的最小厚度为70微米。In one embodiment, when the densities of the materials of the first marking structure, the second marking structure and the third marking structure are different, the first marking structure, the second marking structure and all the The thickness difference between the third marking structures is at least 80 microns; and the minimum thickness of any one of the first marking structures, the second marking structures and the third marking structures is 70 microns.

在其中一个实施例中,当所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同,且所述第一标记结构所述第二标记结构和所述第三标记结构的厚度不同时,所述第一标记结构、所述第二标记结构和所述第三标记结构的表面积大小差异至少为0.2平方毫米;并且,所述第一标记结构、所述第二标记结构和所述第三标记结构的中的任一个的表面积的至少为0.2平方毫米。In one embodiment, when the densities of the materials of the first marking structure, the second marking structure and the third marking structure are different, and the first marking structure, the second marking structure and the third marking structure have different densities When the thickness of the third marking structure is different, the difference in surface area between the first marking structure, the second marking structure and the third marking structure is at least 0.2 square millimeters; The surface area of either of the second marking structure and the third marking structure is at least 0.2 square millimeters.

在其中一个实施例中,所述封堵器还包括第一阻流膜、第二阻流膜和第三阻流膜,所述第一阻流膜设置于所述第一封堵单元上,所述第二阻流膜设置于所述第二封堵单元上,所述第三阻流膜设置于所腰部上。In one embodiment, the occluder further comprises a first blocking film, a second blocking film and a third blocking film, the first blocking film is disposed on the first blocking unit, The second blocking film is arranged on the second blocking unit, and the third blocking film is arranged on the waist.

在其中一个实施例中,所述第一阻流膜包括层叠设置的第一上层膜和第一下层膜,所述多个第一标记结构设置于所述第一上层膜和所述第一下层膜之间;所述第二阻流膜包括层叠设置的第二上层膜和第二下层膜,所述多个第二标记结构设置于所述第二上层膜和所述第二下层膜之间;所述第三阻流膜包括层叠设置的第三上层膜和第三下层膜,所述多个第三标记结构设置于所述第三上层膜和所述第三下层膜之间。In one embodiment, the first flow blocking film includes a first upper layer film and a first lower layer film arranged in layers, and the plurality of first marking structures are arranged on the first upper layer film and the first lower layer film between the lower layer films; the second flow blocking film includes a second upper layer film and a second lower layer film that are arranged in layers, and the plurality of second mark structures are arranged on the second upper layer film and the second lower layer film between; the third flow blocking film includes a third upper layer film and a third lower layer film arranged in layers, and the plurality of third mark structures are arranged between the third upper layer film and the third lower layer film.

在其中一个实施例中,每个所述第一标记结构的边缘至所述第一阻流膜的边缘的距离为0~2毫米,每个所述第二标记结构的边缘至所述第二阻流膜的边缘的距离为0~2毫米,每个所述第三标记结构的边缘至所述第三阻流膜的边缘的距离为0~2毫米。In one embodiment, the distance from the edge of each of the first marking structures to the edge of the first blocking film is 0˜2 mm, and the distance from the edge of each of the second marking structures to the edge of the second The distance from the edge of the blocking film is 0-2 mm, and the distance from the edge of each of the third marking structures to the edge of the third blocking film is 0-2 mm.

在其中一个实施例中,当所述封堵器处于拉伸状态时,所述第一阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第一阻流膜的边缘收缩而形成第一袋状结构,所述多个第一标记结构位于所述第一袋状结构的内部;所述第二阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第二阻流膜的边缘收缩而形成第二袋状结构,所述多个第二标记结构位于所述第二袋状结构的内部;所述第三阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第三阻流膜的边缘收缩而形成第三袋状结构,所述多个第三标记结构位于所述第三袋状结构的内部。In one of the embodiments, when the occluder is in a stretched state, the center of the first blocking film extends toward the distal or proximal direction of the occluder, and the first obstruction film The edge of the blocking film shrinks to form a first bag-like structure, and the plurality of first marking structures are located inside the first pocket-like structure; extending in a distal direction or a proximal direction, and the edge of the second baffle film shrinks to form a second bag-like structure, and the plurality of second marking structures are located inside the second bag-like structure; the first The center of the three blocking membranes extends toward the distal or proximal direction of the occluder, and the edges of the third blocking membrane shrink to form a third bag-like structure, and the plurality of third marking structures inside the third bag-like structure.

在其中一个实施例中,所述第一标记结构的数量至少为3个,且在自然状态下,所述至少3个第一标记结构的连线为正多边形;In one embodiment, the number of the first marking structures is at least three, and in a natural state, the connecting lines of the at least three first marking structures are regular polygons;

所述第二标记结构的数量至少为3个,且在自然状态下,所述至少3个第二标记结构的连线为正多边形;The number of the second marking structures is at least three, and in a natural state, the connecting lines of the at least three second marking structures are regular polygons;

所述第三标记结构的数量至少为3个,且在自然状态下,所述至少3个第三标记结构的连线为正多边形。The number of the third marking structures is at least three, and in a natural state, the connecting lines of the at least three third marking structures are regular polygons.

在其中一个实施例中,所述封堵器还包括远端封头和远端标记结构,所述远端封头与所述第一封堵单元的远离所述腰部的一端相连,所述远端标记结构设于所述远端封头上,并且,所述远端标记结构与所述第一标记结构在医学影像设备下的显影强度不同、显影大小和/或显影形状不同。In one of the embodiments, the occluder further comprises a distal sealing head and a distal marking structure, the distal sealing head is connected with an end of the first occlusion unit away from the waist, the distal end The end marker structure is arranged on the distal end cap, and the distal marker structure and the first marker structure have different developing strengths, different developing sizes and/or different developing shapes under medical imaging equipment.

上述封堵器的多个第一标记结构、多个第二标记结构和多个第三标记结构在医学影像设备下的显影强度不同、显影大小不同和/或显影形状不同,从而可以通过医学影像设备识别封堵器的第一封堵单元、第二封堵单元和腰部;并且,在医学影像设备的光源的至少一入射方向下,多个第一标记结构的中心连线呈直线,多个第二标记结构的中心连线呈直线,多个第三标记结构的中心连线呈直线时,指示封堵器在缺损部位成型良好。因而,能够在手术过程中判断上述封堵器的释放形态是否良好。The multiple first marking structures, multiple second marking structures, and multiple third marking structures of the above-mentioned occluder have different developing strengths, different developing sizes and/or different developing shapes under medical imaging equipment, so that they can pass the medical image. The device identifies the first occlusion unit, the second occlusion unit and the waist of the occluder; and, under at least one incident direction of the light source of the medical imaging device, the center connecting lines of the plurality of first marking structures are straight, and the plurality of first marking structures are connected in a straight line. When the central connecting lines of the second marking structures are straight, and the central connecting lines of the plurality of third marking structures are straight, it indicates that the occluder is well formed at the defect site. Therefore, it is possible to judge whether the release form of the above-mentioned occluder is good or not during the operation.

附图说明Description of drawings

图1为一实施方式的封堵器的结构示意图;1 is a schematic structural diagram of an occluder according to an embodiment;

图2a为一实施方式的第一阻流膜和第一标记结构的设置关系示意图;FIG. 2a is a schematic diagram of the arrangement relationship between the first blocking film and the first marking structure according to an embodiment;

图2b为另一实施方式的第一阻流膜和第一标记结构的设置关系示意图;2b is a schematic diagram of the arrangement relationship between the first flow blocking film and the first marking structure according to another embodiment;

图3a为一实施方式的第一阻流膜和第一标记结构的设置关系示意图;3a is a schematic diagram of the arrangement relationship between the first flow blocking film and the first marking structure according to an embodiment;

图3b为另一实施方式的第一阻流膜和第一标记结构的设置关系示意图;3b is a schematic diagram of the arrangement relationship between the first flow blocking film and the first marking structure according to another embodiment;

图4a为一实施方式的第一阻流膜和第一标记结构的设置关系示意图;4a is a schematic diagram of the arrangement relationship between the first flow blocking film and the first marking structure according to an embodiment;

图4b为另一实施方式的第一阻流膜和第一标记结构的设置关系示意图;4b is a schematic diagram of the arrangement relationship between the first flow blocking film and the first marking structure according to another embodiment;

图5为一实施方式的封堵器的处于部分拉伸状态的示意图;5 is a schematic diagram of an occluder in a partially stretched state according to an embodiment;

图6一实施方式的封堵器的处于完全拉伸状态的示意图。Figure 6 is a schematic diagram of an occluder in a fully stretched state according to an embodiment.

具体实施方式Detailed ways

为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施,本领域技术人员可以在不违背本发明内涵的情况下做类似改进,因此本发明不受下面公开的具体实施的限制。In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.

除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

在介入医疗器械领域,定义“远端”为手术过程中远离操作者的一端,定义“近端”为手术过程中靠近操作者的一端。In the field of interventional medical devices, the "distal end" is defined as the end away from the operator during the operation, and the "proximal end" is defined as the end close to the operator during the operation.

请参阅图1,一实施方式的封堵器100,包括封堵框架20及多个第一标记结构30、多个第二标记结构40和多个第三标记结构50。在一实施方式中,封堵框架20为由多根丝线编织而成的网状结构。丝线的材质可以为在生物体内不可腐蚀的金属,例如,丝线可以为镍钛合金丝、钴铬合金丝或不锈钢丝等。或者,丝线的材质也可以为生物可降解材料。例如,生物可降解材料可以为聚消旋乳酸(PDLLA)、聚D-乳酸(PDLA)、聚L-乳酸(PLLA)、聚乙醇酸(PGA)、聚乳酸-羟基乙酸共聚物(PLGA)、聚羟基脂肪酸脂(PHA)、聚二氧环己酮(PDO)或聚己内酯(PCL)等。在一实施方式中,封堵框架20由3D打印形成。Referring to FIG. 1 , anoccluder 100 according to an embodiment includes anocclusion frame 20 and a plurality offirst marking structures 30 , a plurality ofsecond marking structures 40 and a plurality ofthird marking structures 50 . In one embodiment, theocclusion frame 20 is a mesh structure woven by a plurality of wires. The material of the wire can be a non-corrodible metal in vivo, for example, the wire can be a nickel-titanium alloy wire, a cobalt-chromium alloy wire, or a stainless steel wire. Alternatively, the material of the thread can also be a biodegradable material. For example, the biodegradable material can be polyracemic lactic acid (PDLLA), poly D-lactic acid (PDLA), poly L-lactic acid (PLLA), polyglycolic acid (PGA), polylactic-co-glycolic acid (PLGA), Polyhydroxyalkanoate (PHA), polydioxanone (PDO) or polycaprolactone (PCL), etc. In one embodiment, theocclusion frame 20 is formed by 3D printing.

封堵框架20包括第一封堵单元22、第二封堵单元24和腰部26。腰部26的两端分别与第一封堵单元22和第二封堵单元24连接,形成两端大中间小的两盘一腰结构。在一实施方式中,第一封堵单元22、第二封堵单元24和腰部26为一体式结构。Theocclusion frame 20 includes afirst occlusion unit 22 , asecond occlusion unit 24 and awaist portion 26 . Both ends of thewaist portion 26 are respectively connected with thefirst blocking unit 22 and thesecond blocking unit 24 to form a two-disk and one-waist structure with large ends and a small middle. In one embodiment, thefirst blocking unit 22 , thesecond blocking unit 24 and thewaist portion 26 are integral structures.

多个第一标记结构30设置于第一封堵单元22上,多个第二标记结构40设置于第二封堵单元24上,多个第三标记结构50设置于腰部26上。在医学影像设备的光影的至少一入射方向下,多个第一标记结构30的中心连线呈直线,多个第二标记结构40的中心连线呈直线,多个第三标记结构50的中心连线呈直线,并且,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同、显影大小不同和/或显影形状不同。A plurality offirst marking structures 30 are disposed on thefirst blocking unit 22 , a plurality ofsecond marking structures 40 are disposed on thesecond blocking unit 24 , and a plurality ofthird marking structures 50 are disposed on thewaist portion 26 . In at least one incident direction of light and shadow of the medical imaging device, the center lines of the plurality offirst marking structures 30 are straight lines, the center lines of the plurality ofsecond marking structures 40 are straight lines, and the centers of the plurality ofthird marking structures 50 are straight lines. The connection line is a straight line, and the multiplefirst marking structures 30 , the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing strengths, different developing sizes and/or different developing shapes under medical imaging equipment.

需要说明的是,当第一标记结构30、第二标记结构40和第三标记结构50为规则形状时,上述中心是指几何中心。当第一标记结构30、第二标记结构40和第三标记结构50为不规则形状时,上述中心是指重心。但无论是规则形状还是不规则形状,由于第一标记结构30、第二标记结构40和第三标记结构50的表面积很小,可认为第一标记结构30、第二标记结构40和第三标记结构50的连线均穿过几何中心或重心。It should be noted that, when thefirst marking structure 30 , thesecond marking structure 40 and the third markingstructure 50 are regular shapes, the above-mentioned center refers to the geometric center. When thefirst marking structure 30, thesecond marking structure 40 and the third markingstructure 50 are irregular in shape, the above-mentioned center refers to the center of gravity. However, whether it is a regular shape or an irregular shape, since the surface areas of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 are small, it can be considered that thefirst marking structure 30, thesecond marking structure 40 and the third marking structure The lines connecting thestructures 50 all pass through the geometric center or center of gravity.

还需要说明的是,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同、显影大小和/或显影形状不同是指以下几种并列情况:It should also be noted that the difference in development intensity, development size and/or development shape of the plurality offirst marking structures 30 , the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 under medical imaging equipment refers to the following Several parallel situations:

1、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同;1. The multiplefirst marking structures 30, the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing intensities under the medical imaging equipment;

2、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影大小不同;2. The development sizes of the plurality offirst marking structures 30, the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 under the medical imaging equipment are different;

3、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影形状不同;3. The developing shapes of the plurality offirst marking structures 30, the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 under the medical imaging equipment are different;

4、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同,且显影大小不同;4. The multiplefirst marking structures 30 , the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing intensities and different developing sizes under the medical imaging equipment;

5、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同,显影形状不同;5. The multiplefirst marking structures 30 , the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing strengths and different developing shapes under medical imaging equipment;

6、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影大小不同,且显影形状不同;6. The multiplefirst marking structures 30, the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing sizes and developing shapes under the medical imaging equipment;

7、多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度、显影大小和显影形状均不同。7. The multiplefirst marking structures 30 , the multiplesecond marking structures 40 and the multiplethird marking structures 50 have different developing strengths, developing sizes and developing shapes under medical imaging equipment.

在一实施方式中,显影强度不同是指辐射不透性不同或荧光强度不同。在一实施方式中,显影强度不同,使得在医学影像设备下,人眼可视的第一标记结构30、第二标记结构40和第三标记结构50的颜色不同。In one embodiment, the difference in development intensity refers to the difference in radiopacity or the difference in fluorescence intensity. In one embodiment, the developing intensities are different, so that the colors of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 visible to the human eye are different under the medical imaging device.

显影大小不同是在医学影像设备下,人眼可视的第一标记结构30、第二标记结构40和第三标记结构50的覆盖面积不同。The difference in developing size is that under medical imaging equipment, the coverage areas of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 visible to the human eye are different.

显影形状不同是指,例如,在一实施方式中,第一标记结构30为圆形、第二标记结构40为三角形、第三标记结构50为方形。在另一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的形状可以从月牙形、星形及其他规则形状或不规则形状中选择。Different developing shapes refer to, for example, in one embodiment, thefirst marking structure 30 is circular, thesecond marking structure 40 is triangular, and thethird marking structure 50 is square. In another embodiment, the shape of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 may be selected from crescent, star and other regular or irregular shapes.

在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的形状不同,并且,在医学影像设备下,人眼可视的第一标记结构30、第二标记结构40和第三标记结构50的颜色不同。In one embodiment, the shapes of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are different, and under the medical imaging device, thefirst marking structure 30 and the second marking structure visible to the human eye are 40 and thethird marking structure 50 are of different colors.

在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的材料为金属材料。例如,在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的材料为金、钽、铂、钨、铱等生物体不可吸收的金属。In one embodiment, the materials of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are metal materials. For example, in one embodiment, the materials of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 are gold, tantalum, platinum, tungsten, iridium and other metals that are not absorbed by biological bodies.

在另一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的材料为铁、镁等生物体可吸收金属。当丝线的材质也为生物可降解材料时,选用生物体可吸收金属制备第一标记结构30、第二标记结构40和第三标记结构50,使得封堵器100是完全可生物降解的,在完成封堵后,封堵器100完全降解,无任何金属残留,避免远期临床风险。In another embodiment, the materials of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are bioabsorbable metals such as iron and magnesium. When the material of the thread is also a biodegradable material, the bioabsorbable metal is selected to prepare thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50, so that theoccluder 100 is completely biodegradable. After the occlusion is completed, theoccluder 100 is completely degraded without any metal residue, thus avoiding long-term clinical risks.

在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的材料的密度不同,且第一标记结构30、第二标记结构40和第三标记结构50的厚度不同,使得第一标记结构30、第二标记结构40和第三标记结构50在医学影像设备下的显影强度不同。In one embodiment, the densities of the materials of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are different, and the thicknesses of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are different , so that the developing intensities of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 under the medical imaging equipment are different.

当第一标记结构30、第二标记结构40和第三标记结构50的材料相同时,一标记结构30、第二标记结构40和第三标记结构50的厚度不同,亦能使第一标记结构30、第二标记结构40和第三标记结构50在医学影像设备下的显影强度不同。但为了足够的区分度,第一标记结构30、第二标记结构40和第三标记结构50需要具有足够的厚度差,如此第一标记结构30、第二标记结构40和第三标记结构50之一的厚度会比较大,从而会导致输送困难。因此,选用不同密度的材料制备第一标记结构30、第二标记结构40和第三标记结构50,利用不同密度的材料自身在医学影像设备下的显影强度不同,并结合合适的厚度差,以在医学影像设备下获得足够的区分度,但又使第一标记结构30、第二标记结构40和第三标记结构50中任一个的厚度不至于过大,不会导致输送困难。When the materials of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are the same, the thicknesses of the markingstructure 30 , thesecond marking structure 40 and thethird marking structure 50 are different, so that thefirst marking structure 30. Thesecond marking structure 40 and thethird marking structure 50 have different developing intensities under medical imaging equipment. However, for sufficient discrimination, thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 need to have a sufficient thickness difference, so that thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 The thickness of one will be relatively large, which will lead to difficult transportation. Therefore, materials with different densities are used to prepare thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50, and the materials with different densities themselves have different developing strengths under the medical imaging equipment, and combined with the appropriate thickness difference, to A sufficient degree of discrimination can be obtained under the medical imaging device, but the thickness of any one of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is not too large to cause difficulty in delivery.

在一实施方式中,当第一标记结构30、第二标记结构40和第三标记结构50的材料的密度不同时,第一标记结构30、第二标记结构40和第三标记结构50的之间的厚度差至少为80微米,以使在医学影像设备下,第一标记结构30、第二标记结构40和第三标记结构50的所呈现的影像具有足够的色差,以使人眼能够区分。并且,第一标记结构30、第二标记结构40和第三标记结构50中的任一个的最小厚度为70微米。In one embodiment, when the densities of the materials of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are different, one of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is The thickness difference between them is at least 80 microns, so that under the medical imaging equipment, the images presented by thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 have sufficient color difference so that the human eye can distinguish . And, the minimum thickness of any one of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 is 70 micrometers.

需要说明的是,第一标记结构30、第二标记结构40和第三标记结构50的之间的厚度差至少为80微米是指第一标记结构30、第二标记结构40和第三标记结构50中,两两均存在厚度差,且两两的厚度差至少为80微米。例如,第一标记结构30的厚度比第二标记结构40的厚度大至少80微米,第二标记结构40的厚度比第三标记结构50的厚度至少大80微米。又如,第一标记结构30的厚度比第三标记结构40的厚度大至少80微米,第二标记结构40的厚度比第三标记结构50的厚度至少大80微米,且,第一标记结构30和第二标记结构40的厚度差至少为80微米。It should be noted that the thickness difference between thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is at least 80 μm means that thefirst marking structure 30 , thesecond marking structure 40 and the third marking structure In 50, there is a thickness difference between the two, and the thickness difference between the two is at least 80 microns. For example, the thickness of thefirst marking structure 30 is greater than the thickness of thesecond marking structure 40 by at least 80 micrometers, and the thickness of thesecond marking structure 40 is at least 80 micrometers greater than the thickness of thethird marking structure 50 . For another example, the thickness of thefirst marking structure 30 is greater than the thickness of thethird marking structure 40 by at least 80 microns, the thickness of thesecond marking structure 40 is at least 80 microns greater than the thickness of thethird marking structure 50, and thefirst marking structure 30 The difference in thickness with thesecond marking structure 40 is at least 80 microns.

设置第一标记结构30、第二标记结构40和第三标记结构50中的任一个的最小厚度为70微米,以保证第一标记结构30、第二标记结构40和第三标记结构50具有足够的清晰度,使得第一标记结构30、第二标记结构40和第三标记结构50的可视性较好;同时,使当第一标记结构30、第二标记结构40和第三标记结构50的材料相同时,第一标记结构30、第二标记结构40和第三标记结构50的之间的厚度差至少为80微米,以获得足够的区分度。最小厚度在70微米范围内及最小厚度差为80微米的组合,获得可视性、可视性区分度及合理的厚度,避免增加封堵器100的整体的柔顺性而增加输送的难度。The minimum thickness of any one of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is set to be 70 μm to ensure that thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 have sufficient The clarity of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 is better; at the same time, thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 When the materials are the same, the thickness difference between thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 is at least 80 microns, so as to obtain a sufficient degree of discrimination. The combination of the minimum thickness within the range of 70 microns and the minimum thickness difference of 80 microns achieves visibility, visibility and a reasonable thickness, and avoids increasing the overall flexibility of theoccluder 100 and increasing the difficulty of delivery.

在一实施方式中,第一标记结构30与第三标记结构50的厚度差至少为80微米,第二标记结构40的厚度与第一标记结构30的厚度相等。由于在轴向上,第一标记结构30与第三标记结构50相邻,第二标记结构40与第三标记结构50相邻,而第一标记结构30和第二标记结构40间隔设置,仅使第一标记结构30与第三标记结构50之间形成厚度差,第二标记结构40与第三标记结构50之间形成厚度差,而第一标记结构30和第二标记结构40不形成厚度差,亦能保证在医学影像设备下,能够识别和区分第一封堵单元22、第二封堵单元24和腰部26,并且,第一标记结构30、第二标记结构40和第三标记结构50中任一个的厚度不至于过大而影响输送。In one embodiment, the thickness difference between thefirst marking structure 30 and thethird marking structure 50 is at least 80 μm, and the thickness of thesecond marking structure 40 is equal to the thickness of thefirst marking structure 30 . Since in the axial direction, thefirst marking structure 30 is adjacent to thethird marking structure 50, thesecond marking structure 40 is adjacent to thethird marking structure 50, and thefirst marking structure 30 and thesecond marking structure 40 are arranged at intervals, only A thickness difference is formed between thefirst marking structure 30 and thethird marking structure 50, a thickness difference is formed between thesecond marking structure 40 and thethird marking structure 50, and a thickness difference is formed between thefirst marking structure 30 and thesecond marking structure 40 It can also ensure that thefirst blocking unit 22, thesecond blocking unit 24 and thewaist 26 can be identified and distinguished under the medical imaging equipment, and thefirst marking structure 30, thesecond marking structure 40 and the third marking structure The thickness of any one of 50 is not so large as to affect delivery.

在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的厚度相同,且第一标记结构30的材料、第二标记结构40的材料和第三标记结构50的材料的密度不同,使得第一标记结构30、第二标记结构40和第三标记结构50在医学影像设备下的显影强度不同。例如,在DSA影像设备下,密度较大的金属呈现亮黑色,密度较小的金属呈现灰色,由此可区分不同的标记结构,从而区分封堵框架20的不同部位。In one embodiment, the thicknesses of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are the same, and the materials of thefirst marking structure 30 , the materials of thesecond marking structure 40 and thethird marking structure 50 are The density of the materials is different, so that thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 have different developing intensities under the medical imaging equipment. For example, under the DSA imaging device, the metal with higher density appears bright black, and the metal with lower density appears gray, so that different marking structures can be distinguished, thereby distinguishing different parts of the blockingframe 20 .

在一实施方式中,当第一标记结构30、第二标记结构40和第三标记结构50的厚度相同,且第一标记结构30的材料、第二标记结构40的材料和第三标记结构50的材料的密度不同时,第一标记结构30、第二标记结构40和第三标记结构50的表面积大小差异至少为0.2mm2,以进一步使在医学影像设备下,第一标记结构30、第二标记结构40和第三标记结构50的所呈现的影像具有足够区分度,以使人眼能够区分。并且,第一标记结构30、第二标记结构40和第三标记结构50的中的任一个的表面积的至少为0.2mm2In one embodiment, when the thicknesses of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are the same, and the material of thefirst marking structure 30 , the material of thesecond marking structure 40 and thethird marking structure 50 are When the densities of the materials are different, the difference in surface area of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 is at least 0.2 mm2 , so that thefirst marking structure 30, thethird marking structure 30, the third marking structure The presented images of thesecond marking structure 40 and thethird marking structure 50 have sufficient discrimination for the human eye to distinguish. Also, the surface area of any one of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is at least 0.2 mm2 .

当第一标记结构30、第二标记结构40和第三标记结构50的表面积过大时,所匹配的输送鞘管的尺寸需要越大。因此,第一标记结构30、第二标记结构40和第三标记结构50的表面积应该控制在一定的范围内。但当第一标记结构30、第二标记结构40和第三标记结构50的表面积过小时,对封堵器100形态的指示效果不佳。因此,在一实施方式中,第一标记结构30、第二标记结构40和第三标记结构50的中的任一个的表面积至少为0.2mm2,并且第一标记结构30、第二标记结构40和第三标记结构50的表面积大小差异至少为0.2mm2,以获得较优的可视性及可视性区分度,且可以使用尺寸较小的输送鞘管进行输送。When the surface area of thefirst marker structure 30, thesecond marker structure 40 and thethird marker structure 50 is too large, the size of the matching delivery sheath needs to be larger. Therefore, the surface areas of thefirst marking structure 30, thesecond marking structure 40 and thethird marking structure 50 should be controlled within a certain range. However, when the surface areas of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are too small, the indication effect on the shape of theoccluder 100 is not good. Therefore, in one embodiment, the surface area of any one of thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 is at least 0.2 mm2 , and thefirst marking structure 30 , thesecond marking structure 40 The difference between the surface area and thethird marker structure 50 is at least 0.2 mm2 , so as to obtain better visibility and visibility discrimination, and a smaller size delivery sheath can be used for delivery.

需要说明的是,第一标记结构30、第二标记结构40和第三标记结构50的表面积大小差异至少为0.2mm2是指无论第一标记结构30、第二标记结构40和第三标记结构50分别为何种形状,无论三者的形状是否相同,第一标记结构30、第二标记结构40和第三标记结构50的面积大小差异至少为0.2mm2。并且,第一标记结构30、第二标记结构40和第三标记结构50中,两两均存在表面积差,且两两的表面积差至少为0.2mm2It should be noted that the difference between the surface areas of thefirst marking structure 30, thesecond markingstructure 40 and thethird marking structure 50 is at least 0.2 mm. Regardless of the shapes of thefirst marking structures 30 , thesecond marking structures 40 and thethird marking structures 50 , the difference in area size is at least 0.2 mm2 , regardless of the shapes of the three markingstructures 50 respectively. In addition, among thefirst marking structures 30 , thesecond marking structures 40 and thethird marking structures 50 , there is a difference in surface area between each of them, and the difference in surface area between the two is at least 0.2 mm2 .

在一实施方式中,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同,并且,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50的显影形状也不同,如此,能够更显著地区分封堵框架20的不同部位,有利于术者准确无误地识别封堵器100的释放形态,提高手术的成功率。In one embodiment, the plurality offirst marking structures 30 , the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 have different developing intensities under medical imaging equipment, and the plurality offirst marking structures 30 , the plurality of The developing shapes of thesecond marking structures 40 and the plurality ofthird marking structures 50 are also different. In this way, different parts of theocclusion frame 20 can be distinguished more significantly, which is beneficial for the operator to accurately identify the release form of theoccluder 100 , improve the success rate of surgery.

上述封堵器100的多个第一标记结构30、多个第二标记结构40和多个第三标记结构50分别设置于封堵框架20的第一封堵单元22、第二封堵单元24和腰部26上,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50在医学影像设备下的显影强度不同、显影大小不同或显影形状不同,从而可以通过医学影像设备识别封堵框架20的第一封堵单元22、第二封堵单元24和腰部26。The plurality offirst marking structures 30 , the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 of the above-mentionedoccluder 100 are respectively disposed on thefirst blocking unit 22 and thesecond blocking unit 24 of the blockingframe 20 . And on thewaist 26 , the plurality offirst marking structures 30 , the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 have different developing strengths, different developing sizes or different developing shapes under the medical imaging equipment, so that they can be passed through the medical imaging device. The imaging device identifies thefirst occlusion unit 22 , thesecond occlusion unit 24 and thewaist 26 of theocclusion frame 20 .

并且,在医学影像设备的光影的至少一个入射方向下,多个第一标记结构30的中心连线呈直线,多个第二标记结构40的中心连线呈直线,多个第三标记结构50的中心连线呈直线时,指示封堵器在缺损部位成型良好。因而,能够在手术过程中判断上述封堵器100的释放形态是否良好。In addition, in at least one incident direction of light and shadow of the medical imaging device, the center connecting lines of the plurality offirst marking structures 30 are straight lines, the center connecting lines of the plurality ofsecond marking structures 40 are straight lines, and the plurality ofthird marking structures 50 are straight lines. When the center line of the occluder is straight, it indicates that the occluder is well formed at the defect site. Therefore, it can be determined whether the release form of theoccluder 100 is good or not during the operation.

在一实施方式中,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50直接设置于封堵框架20上。例如,多个第一标记结构30缠绕于第一封堵单元22的丝线上,多个第二标记结构40缠绕于第二封堵单元24的丝线上,多个第三标记结构50缠绕于腰部26的丝线上。In one embodiment, a plurality offirst marking structures 30 , a plurality ofsecond marking structures 40 and a plurality ofthird marking structures 50 are directly disposed on the blockingframe 20 . For example, a plurality offirst marking structures 30 are wound on the wire of thefirst blocking unit 22, a plurality ofsecond marking structures 40 are wound on the wire of thesecond blocking unit 24, and a plurality ofthird marking structures 50 are wound on thewaist 26 on the silk thread.

在一实施方式中,封堵器100还包括第一阻流膜62、第二阻流膜64和第三阻流膜66,第一阻流膜62设置于第一封堵单元22上,第二阻流膜64设置于第二封堵单元24上,第三阻流膜66设置于腰部26上。设置第一阻流膜62、第二阻流膜64和第三阻流膜66,有利于避免残余分流,提高即时封堵性。In one embodiment, theoccluder 100 further includes afirst blocking film 62 , asecond blocking film 64 and athird blocking film 66 . Thefirst blocking film 62 is disposed on thefirst blocking unit 22 . Thesecond blocking film 64 is disposed on thesecond blocking unit 24 , and thethird blocking film 66 is disposed on thewaist portion 26 . The provision of the firstflow blocking film 62 , the secondflow blocking film 64 and the thirdflow blocking film 66 is beneficial to avoid residual shunting and improve the immediate blocking performance.

在一实施方式中,请一并参阅图1、图2a和图2b,多个第一标记结构30设置于第一阻流膜62上。请一并参阅图1、图3a和图3b多个第二标记结构40设置于第二阻流膜64上。请一并参阅图1、图4a和图4b,多个第三标记结构50设置于第三阻流膜66上。如此,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50不仅仅能够指示第一封堵单元22、第二封堵单元24和腰部26的释放形态,还能指示第一阻流膜62、第二阻流膜64和第三阻流膜66的形态。例如,指示第一阻流膜62、第二阻流膜64和第三阻流膜66展开良好,无卷边现象。In one embodiment, please refer to FIG. 1 , FIG. 2 a and FIG. 2 b together, a plurality offirst marking structures 30 are disposed on thefirst blocking film 62 . Please refer to FIG. 1 , FIG. 3 a and FIG. 3 b together. A plurality ofsecond marking structures 40 are disposed on thesecond blocking film 64 . Please refer to FIG. 1 , FIG. 4 a and FIG. 4 b together, a plurality ofthird marking structures 50 are disposed on thethird blocking film 66 . In this way, the plurality offirst marking structures 30 , the plurality ofsecond marking structures 40 and the plurality ofthird marking structures 50 can not only indicate the release form of thefirst blocking unit 22 , thesecond blocking unit 24 and thewaist 26 , but also The morphology of thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 can be indicated. For example, it indicates that the firstflow blocking film 62 , the secondflow blocking film 64 and the thirdflow blocking film 66 are well unfolded and have no curling phenomenon.

在一实施方式中,如图2a所示,第一标记结构30设置于第一阻流膜62的表面。如图3a所示,第二标记结构40设置于第二阻流膜64的表面。如图4a所示,第三标记结构50设置于第三阻流膜66的表面。可以采用粘结等固定方式分别将第一标记结构30、第二标记结构40和第三标记结构50固定于第一阻流膜62、第二阻流膜64和第三阻流膜66上。In one embodiment, as shown in FIG. 2 a , thefirst marking structure 30 is disposed on the surface of thefirst blocking film 62 . As shown in FIG. 3 a , thesecond marking structure 40 is disposed on the surface of thesecond blocking film 64 . As shown in FIG. 4 a , thethird marking structure 50 is disposed on the surface of thethird blocking film 66 . Thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 may be fixed on thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 by means of bonding or the like, respectively.

在一实施方式中,请再次参阅图2b,第一阻流膜62包括层叠设置的第一上层膜622和第一下层膜624,多个第一标记结构30设置于第一上层膜622和第一下层膜644之间。请再次参阅图3b,第二阻流膜64包括层叠设置的第二上层膜642和第二下层膜644,多个第二标记结构40设置于第二上层膜642和第二下层膜644之间。请再次参阅图4b,第三阻流膜66包括层叠设置的第三上层膜662和第三下层膜664,多个第三标记结构50设置于第三上层膜662和第三下层膜664之间。在一实施方式中,采用热熔焊接的方式将第一标记结构30固定于第一上层膜622和/或第一下层膜624上,将第二标记结构40固定于第二上层膜642和/或第二下层膜644上,将第三标记结构50固定于第三上层膜662和/或第三下层膜664上。上述设置方式能够防止第一标记结构30、第二标记结构40和/或第三标记结构50脱落。一方面,能够避免在输送过程中第一标记结构30、第二标记结构40和/或第三标记结构50脱落于输送鞘管中而使得封堵器100在医学影像设备下不可视或可视性较差,从而增加手术难度或导致手术不能进行;另一方面,避免在植入后,在内皮化前第一标记结构30、第二标记结构40和/或第三标记结构50脱落而引起不可控的风险。In one embodiment, please refer to FIG. 2b again, thefirst blocking film 62 includes a firstupper layer film 622 and a firstlower layer film 624 arranged in layers, and a plurality offirst marking structures 30 are disposed on the firstupper layer film 622 and the firstlower layer film 624 . between the firstlower film 644 . Referring to FIG. 3 b again, thesecond blocking film 64 includes a secondupper layer film 642 and a secondlower layer film 644 arranged in layers, and a plurality ofsecond marking structures 40 are disposed between the secondupper layer film 642 and the secondlower layer film 644 . Referring to FIG. 4b again, thethird blocking film 66 includes a thirdupper layer film 662 and a thirdlower layer film 664 arranged in layers, and a plurality ofthird marking structures 50 are disposed between the thirdupper layer film 662 and the thirdlower layer film 664 . In one embodiment, thefirst marking structure 30 is fixed on the firstupper film 622 and/or the firstlower film 624 by means of thermal fusion welding, and thesecond marking structure 40 is fixed on the secondupper film 642 and/or the firstlower film 624. On the secondlower layer film 644 , thethird marking structure 50 is fixed on the thirdupper layer film 662 and/or the thirdlower layer film 664 . The above arrangement can prevent thefirst marking structure 30 , thesecond marking structure 40 and/or thethird marking structure 50 from falling off. On the one hand, it can prevent thefirst marking structure 30, thesecond marking structure 40 and/or thethird marking structure 50 from falling off in the delivery sheath during the delivery process, so that theoccluder 100 is invisible or visible under the medical imaging equipment On the other hand, after implantation, thefirst marker structure 30, thesecond marker structure 40 and/or thethird marker structure 50 fall off before the endothelialization is avoided. uncontrollable risk.

在一实施方式中,第一阻流膜62、第二阻流膜64和第三阻流膜66均为单层结构,多个第一标记结构30、多个第二标记结构40和多个第三标记结构50分别设置于第一阻流膜62、第二阻流膜64和第三阻流膜66的内部或表面。In one embodiment, thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 are all single-layer structures, and a plurality offirst marking structures 30 , a plurality ofsecond marking structures 40 and a plurality of Thethird marking structures 50 are respectively disposed inside or on the surfaces of thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 .

当第一阻流膜62、第二阻流膜64和第三阻流膜66的厚度大于0.6毫米时,厚度过大,导致所需要的输送鞘管的尺寸较大,从而影响输送。当厚度小于0.02毫米时,阻流膜易破碎,例如在装载时,容易因拉伸而破碎。因此,在一实施方式中,无论第一阻流膜62、第二阻流膜64和第三阻流膜66之一或全部均为单层结构或双层结构,第一阻流膜62、第二阻流膜64和第三阻流膜66的厚度均在0.02~0.6毫米范围内。When the thickness of thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 is greater than 0.6 mm, the thickness is too large, resulting in a larger size of the required delivery sheath, thereby affecting the delivery. When the thickness is less than 0.02 mm, the baffle film is easily broken, for example, it is easily broken due to stretching during loading. Therefore, in one embodiment, no matter one or all of the firstflow blocking film 62 , the secondflow blocking film 64 and the thirdflow blocking film 66 are a single-layer structure or a double-layer structure, the firstflow blocking film 62 , The thicknesses of thesecond blocking film 64 and thethird blocking film 66 are both in the range of 0.02-0.6 mm.

在一实施方式中,当将封堵器100处于拉伸状态或部分拉伸状态(如图5所示)时,第一阻流膜62的中心向靠近封堵器100的远端101方向延伸,且第一阻流膜62的边缘收缩而形成第一袋状结构,第一标记结构30位于第一袋状结构的内部。第二阻流膜64的中心向靠近封堵器100的远端方向101延伸,且第二阻流膜64的边缘收缩而形成第二袋状结构,第二标记结构40位于第二袋状结构的内部。第三阻流膜66的中心向靠近封堵器100的远端101方向延伸,且第三阻流膜66的边缘收缩而形成第三袋状结构,第三标记结构50位于第三袋状结构的内部。在另外的实施方式中,第一阻流膜62的中心向靠近封堵器100的近端102方向延伸且边缘收缩,第二阻流膜64的中心向靠近封堵器100的近端102方向延伸且边缘收缩,第三阻流膜66的中心向靠近封堵器100的近端102方向延伸且边缘收缩。In one embodiment, when theoccluder 100 is in a stretched state or a partially stretched state (as shown in FIG. 5 ), the center of thefirst baffle film 62 extends toward the direction close to thedistal end 101 of theoccluder 100 , and the edge of thefirst baffle film 62 shrinks to form a first pocket structure, and thefirst marking structure 30 is located inside the first pocket structure. The center of thesecond blocking film 64 extends toward thedistal direction 101 of theoccluder 100 , and the edge of thesecond blocking film 64 shrinks to form a second pocket structure, and thesecond marking structure 40 is located in the second pocket structure internal. The center of thethird blocking film 66 extends toward thedistal end 101 of theoccluder 100 , and the edge of thethird blocking film 66 shrinks to form a third pocket structure, and thethird marking structure 50 is located in the third pocket structure internal. In another embodiment, the center of thefirst blocking film 62 extends toward theproximal end 102 of theoccluder 100 and the edge contracts, and the center of thesecond blocking film 64 extends toward theproximal end 102 of theoccluder 100 . Extending and shrinking at the edges, the center of the thirdflow blocking membrane 66 extends toward theproximal end 102 of theoccluder 100 and shrinks at the edges.

请一并参阅图5和图6,当封堵器100装载于输送鞘管200中时,封堵器100处于拉伸状态。第一标记结构30、第二标记结构40和第三标记结构50分别位于相应的袋状结构的内部,能够避免与输送鞘管200直接接触,从而避免第一标记结构30、第二标记结构40和第三标记结构50与输送鞘管200的内壁发生摩擦、剐蹭而导致第一标记结构30、第二标记结构40和第三标记结构50脱落的现象。Please refer to FIG. 5 and FIG. 6 together. When theoccluder 100 is loaded into thedelivery sheath 200 , theoccluder 100 is in a stretched state. Thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are respectively located inside the corresponding bag-like structures, which can avoid direct contact with thedelivery sheath 200 , thereby avoiding thefirst marking structure 30 and thesecond marking structure 40 and thethird marking structure 50 and the inner wall of thedelivery sheath 200 are rubbed and rubbed, causing thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 to fall off.

在一实施方式中,采用缝线缝合的方式分别将第一阻流膜62、第二阻流膜64和第三阻流膜66设置于第一封堵单元22、第二封堵单元24和腰部26上。In one embodiment, thefirst blocking film 62 , thesecond blocking film 64 and thethird blocking film 66 are respectively disposed on thefirst blocking unit 22 , thesecond blocking unit 24 and the On thewaist 26.

在一实施方式中,通过采用合理的缝合方式使得在拉伸状态,第一标记结构30、第二标记结构40和第三标记结构50分别位于相应的袋状结构的内部。例如,如图5所示,通过采用第一缝合线71和第二缝合线72将第一阻流膜62固定于第一封堵单元22内部。第一缝合线71比第二缝合线72更靠近第一阻流膜62的中心。第二阻流膜64和第三阻流膜66的固定方式相同,此处不再赘述。In one embodiment, thefirst marking structure 30 , thesecond marking structure 40 and thethird marking structure 50 are respectively located inside the corresponding bag-like structures in the stretched state by adopting a reasonable sewing method. For example, as shown in FIG. 5 , thefirst blocking membrane 62 is fixed inside thefirst blocking unit 22 by using thefirst suture 71 and thesecond suture 72 . Thefirst suture line 71 is closer to the center of thefirst baffle film 62 than thesecond suture line 72 . Thesecond blocking film 64 and thethird blocking film 66 are fixed in the same manner, and will not be repeated here.

在一实施方式中,每个第一标记结构30的边缘至第一阻流膜62的边缘的距离为0~2毫米。每个第二标记结构40的边缘至第二阻流膜64的边缘的距离为0~2毫米。每个第三标记结构50的边缘至第三阻流膜66的边缘的距离为0~2毫米。设置上述三个距离分别为0~2毫米,有利于识别第一封堵单元22、第二封堵单元24和腰部26的极限位置,从而有利于封堵器100的准确定位。In one embodiment, the distance from the edge of eachfirst marking structure 30 to the edge of thefirst blocking film 62 is 0˜2 mm. The distance from the edge of eachsecond marking structure 40 to the edge of thesecond blocking film 64 is 0˜2 mm. The distance from the edge of eachthird marking structure 50 to the edge of thethird blocking film 66 is 0˜2 mm. Setting the above three distances to be 0-2 mm is helpful for identifying the limit positions of thefirst blocking unit 22 , thesecond blocking unit 24 and thewaist 26 , thereby facilitating the accurate positioning of theoccluder 100 .

在一实施方式中,每个第一标记结构30的边缘至第一阻流膜62的边缘的距离为1~2毫米。每个第二标记结构40的边缘至第二阻流膜64的边缘的距离为1~2毫米。每个第三标记结构50的边缘至第三阻流膜66的边缘的距离为1~2毫米。如此,不仅仅利于封堵器100的准确定位,还有利于避免第一标记结构30、第二标记结构40和/第三标记结构50在装载或输送过程中易与输送鞘管的内壁剐蹭而脱落。In one embodiment, the distance from the edge of eachfirst marking structure 30 to the edge of thefirst blocking film 62 is 1˜2 mm. The distance from the edge of eachsecond marking structure 40 to the edge of thesecond blocking film 64 is 1˜2 mm. The distance from the edge of eachthird marking structure 50 to the edge of thethird blocking film 66 is 1˜2 mm. In this way, it is not only conducive to the accurate positioning of theoccluder 100, but also helps to prevent thefirst marking structure 30, thesecond marking structure 40 and/or thethird marking structure 50 from easily rubbing against the inner wall of the delivery sheath during loading or delivery. fall off.

在一实施方式中,第一标记结构30的数量至少为3个,且在自然状态下,所述至少3个第一标记结构30不在同一直线上。第二标记结构40的数量至少为3个,且在自然状态下,至少3个第二标记结构40不在同一直线上。第三标记结构50的数量至少为3个,且在自然状态下,至少3个第三标记结构50不在同一直线上。如此设置,避免在医学影像设备下,多个第一标记结构30重叠为一个点,多个第二标记结构40重叠为一个点及多个第三标记结构50重叠为一个点而影响封堵器100的整体形态的可视性的判断,有利于手术顺利进行。In one embodiment, the number of thefirst marking structures 30 is at least three, and in a natural state, the at least three first markingstructures 30 are not on the same straight line. The number of thesecond marking structures 40 is at least three, and in a natural state, the at least threesecond marking structures 40 are not on the same straight line. The number of thethird marking structures 50 is at least three, and in a natural state, the at least threethird marking structures 50 are not on the same straight line. In this way, under the medical imaging equipment, a plurality offirst marking structures 30 are overlapped to form a point, a plurality ofsecond marking structures 40 are overlapped to form a point, and a plurality ofthird marking structures 50 are overlapped to form a point, which will affect the occluder. The visibility of the overall shape of the judgment of 100 is conducive to the smooth operation of the operation.

当标记结构的数量过多时,一方面增加成本,另一方面如果标记结构由生物体不可吸收的材料制成,会导致过多的异物留存而可能产生远期临床风险,也会影响输送性能。因此,在一实施方式中,第一标记结构30的数量为3~12个,第二标记结构40的数量为3~12个,第三标记结构50的数量为3~12个。When the number of marker structures is too large, on the one hand, the cost will be increased. On the other hand, if the marker structures are made of non-absorbable materials, it will lead to excessive retention of foreign bodies, which may cause long-term clinical risks, and also affect the delivery performance. Therefore, in one embodiment, the number of thefirst marking structures 30 is 3-12, the number of thesecond marking structures 40 is 3-12, and the number of thethird marking structures 50 is 3-12.

在一实施方式中,至少3个第一标记结构30均匀分布,至少3个第二标记结构40均匀分布,至少3个第三标记结构50均匀分布。以第一标记结构30为例,均匀分布是指,多个第一标记结构30的中心连线成正多边形或任意相邻两个第一标记结构30的距离相等。多个第二标记结构40均匀分布和多个第三标记结构50均匀分布具有相同的含义,此处不在赘述。In one embodiment, at least three first markingstructures 30 are uniformly distributed, at least threesecond marking structures 40 are uniformly distributed, and at least threethird marking structures 50 are uniformly distributed. Taking thefirst marking structures 30 as an example, the uniform distribution means that the centers of the plurality offirst marking structures 30 are connected to form a regular polygon or the distance between any two adjacentfirst marking structures 30 is equal. The uniform distribution of the plurality ofsecond marking structures 40 and the uniform distribution of the plurality ofthird marking structures 50 have the same meaning, which will not be repeated here.

在一实施方式中,第一标记结构30的数量为三个,三个第一标记结构30的中心连线成正三角形。第二标记结构40的数量为三个,三个第二标记结构40的中心连线成正三角形。第三标记结构50的数量为三个,三个第三标记结构50的中心连线成正三角形。如此设置,使用最少数量的第一标记结构30、最少数量的第二标记结构40和最少数量的第三标记结构50,能够避免过多的非生物可吸收的异物残留及避免对封堵器100的输送性能产生不利影响。并且,无论医学影像设备的光源的入射方向如何,投影形态均不变,均可以通过标记结构的位置和标记结构之间的长度判断封堵器100的形态。同时,方便操作,对医学影像设备的光影的入射方向不做过多的强制要求,有利于缩短手术时间。In one embodiment, the number of thefirst marking structures 30 is three, and the centers of the three first markingstructures 30 are connected to form an equilateral triangle. The number of thesecond marking structures 40 is three, and the centers of the threesecond marking structures 40 are connected to form an equilateral triangle. The number of thethird marking structures 50 is three, and the centers of the threethird marking structures 50 are connected to form an equilateral triangle. In this way, the use of the minimum number offirst marking structures 30 , the minimum number ofsecond marking structures 40 and the minimum number ofthird marking structures 50 can avoid excessive non-bioabsorbable foreign matter remaining and avoid theocclusion device 100 . adversely affect the transport performance. In addition, regardless of the incident direction of the light source of the medical imaging device, the projection shape remains unchanged, and the shape of theoccluder 100 can be determined by the positions of the marking structures and the length between the marking structures. At the same time, it is convenient to operate, and does not impose too many mandatory requirements on the incident direction of light and shadow of the medical imaging equipment, which is beneficial to shorten the operation time.

进一步地,在手术过程中,当第一封堵单元22释放时,可能会有第一封堵单元22或第二封堵单元24的一部分盘面卡在缺损部位的现象发生,按上述方式设置,不论哪个部位受到挤压,都可以通过标记结构的位置和标记结构之间的长度判断封堵器100的形态。Further, during the operation, when thefirst blocking unit 22 is released, there may be a phenomenon that a part of the disk surface of thefirst blocking unit 22 or thesecond blocking unit 24 is stuck at the defect site. No matter which part is squeezed, the shape of theoccluder 100 can be judged by the position of the marking structures and the length between the marking structures.

在一实施方式中,第一标记结构30的数量为三个,三个第一标记结构30的连线成三角形。并且,其中两个第一标记结构30的中心连线穿过第一阻流膜62的中心,或两个第一标记结构30的中心连线穿过第一封堵单元22的中心。第二标记结构40的数量为三个,三个第二标记结构40的中心连线成三角形。并且,其中两个第二标记结构40的中心连线穿过第二阻流膜64的中心,或两个第二标记结构40的中心连线穿过第二封堵单元24的中心。第三标记结构50的数量为三个,三个第三标记结构50的中心连线成三角形。并且,其中两个第三标记结构50的中心连线穿过第三阻流膜66的中心,或两个第三标记结构50的中心连线穿过腰部26的中心。如此设置,以第一标记结构30为例,在医学影像设备的光影的某一入射方向下,三个第一标记结构30的连线(穿过中心)的长度与第一阻流膜62的宽度(例如,当第一阻流膜62为圆形时,宽度为直径。当第一阻流膜62为椭圆形时,宽度为长轴的长度)的差值为0~2毫米。如此,进一步利于至少封堵框架20的各个部位的边缘形态。In one embodiment, the number of thefirst marking structures 30 is three, and the connecting lines of the three first markingstructures 30 form a triangle. In addition, the center line of the twofirst marking structures 30 passes through the center of thefirst blocking film 62 , or the center line of the twofirst marking structures 30 passes through the center of thefirst blocking unit 22 . The number of thesecond marking structures 40 is three, and the centers of the threesecond marking structures 40 are connected to form a triangle. In addition, the center line of the twosecond marking structures 40 passes through the center of thesecond blocking film 64 , or the center line of the twosecond marking structures 40 passes through the center of thesecond blocking unit 24 . The number of thethird marking structures 50 is three, and the centers of the threethird marking structures 50 are connected to form a triangle. In addition, the center line of the twothird marking structures 50 passes through the center of the thirdflow blocking film 66 , or the center line of the twothird marking structures 50 passes through the center of thewaist portion 26 . In this way, taking thefirst marking structure 30 as an example, in a certain incident direction of light and shadow of the medical imaging device, the length of the connecting lines (passing through the center) of the three first markingstructures 30 is the same as the length of thefirst blocking film 62 . The difference in width (for example, when thefirst blocking film 62 is circular, the width is the diameter; when thefirst blocking film 62 is oval, the width is the length of the major axis) is 0˜2 mm. In this way, it is further advantageous to block at least the edge shape of each part of theframe 20 .

在一实施方式中,第一标记结构30的数量为2个,且两个第一标记结构30的中心连线穿过第一阻流膜62的中心,或两个第一标记结构30的中心连线穿过第一封堵单元22的中心。第二标记结构40的数量为2个,两个第二标记结构40的中心连线穿过第二阻流膜64的中心,或两个第二标记结构40的中心连线穿过第二封堵单元24的中心。第三标记结构50的数量为2个,两个第三标记结构50的中心连线穿过第三阻流膜66的中心,或两个第三标记结构50的中心连线穿过腰部26的中心。In one embodiment, the number of thefirst marking structures 30 is two, and the center line connecting the twofirst marking structures 30 passes through the center of the firstflow blocking film 62 , or the center of the twofirst marking structures 30 The connecting line passes through the center of thefirst blocking unit 22 . The number of thesecond marking structures 40 is two, and the center line of the twosecond marking structures 40 passes through the center of thesecond blocking film 64 , or the center line of the twosecond marking structures 40 passes through thesecond sealing film 64 . Block the center of theunit 24 . The number of thethird marker structures 50 is 2, the center line of the twothird marker structures 50 passes through the center of the thirdflow blocking film 66 , or the center line of the twothird marker structures 50 passes through thewaist 26 . center.

在一实施方式中,多个第一标记结构30设置于第一阻流膜62上。多个第二标记结构40设置于第二阻流膜64上。多个第三标记结构50直接设置于腰部26上。并且,多个第三标记结构50缠绕于腰部26的丝线上,并且,多个第三标记结构50沿腰部26的周向设置,且多个第三标记结构50位于同一平面上。如此,不仅能够较好地区分第一封堵单元22、第二封堵单元24和腰部,还有利于提高腰部26的支撑性能,使得在血流的冲击下,能够避免封堵器20移位。In one embodiment, the plurality offirst marking structures 30 are disposed on thefirst blocking film 62 . A plurality ofsecond marking structures 40 are disposed on thesecond blocking film 64 . A plurality ofthird marking structures 50 are disposed directly on thewaist portion 26 . In addition, the plurality ofthird marker structures 50 are wound on the wire of thewaist portion 26 , and the plurality ofthird marker structures 50 are arranged along the circumferential direction of thewaist portion 26 , and the plurality ofthird marker structures 50 are located on the same plane. In this way, not only thefirst blocking unit 22, thesecond blocking unit 24 and the waist can be better distinguished, but also the support performance of thewaist 26 can be improved, so that the displacement of theoccluder 20 can be avoided under the impact of blood flow .

请再次参阅图5,在一实施方式中,封堵器100还包括远端封头80和设置于远端封头80上的远端标记结构90。远端封头80与第一封堵单元22相连,用于固定第一封堵单元22的丝线的自由端。Referring to FIG. 5 again, in one embodiment, theoccluder 100 further includes adistal sealing head 80 and adistal marking structure 90 disposed on thedistal sealing head 80 . Thedistal sealing head 80 is connected to thefirst blocking unit 22 for fixing the free end of the wire of thefirst blocking unit 22 .

在封堵器100的自然状态下,至少两个第一标记结构30与远端标记结构90的连线呈三角形。在手术过程中,该三角形的高度会不断变小而使至少两个第一标记结构30与远端标记结构90的连线变成一直线,当变成直线时即表示封堵器100与缺损部位的贴壁良好,可以停止牵拉操作而继续释放封堵器100的第二封堵单元24。设置远端标记结构90有利于进一步提高手术操作的便利性。In the natural state of theoccluder 100 , the connecting lines between the at least twofirst marker structures 30 and thedistal marker structures 90 are in a triangle shape. During the operation, the height of the triangle will continue to decrease so that the line connecting the at least twofirst marker structures 30 and thedistal marker structure 90 becomes a straight line. When it becomes a straight line, it means theoccluder 100 and the defect. The site is well attached to the wall, and the pulling operation can be stopped to continue releasing thesecond occluding unit 24 of theoccluder 100 . Providing thedistal marker structure 90 is beneficial to further improve the convenience of the surgical operation.

远端标记结构90与第一标记结构30在医学影像设备下的显影强度不同、显影大小和/或显影形状不同。显影强度不同、显影大小和显影形状不同的实现方式与上述相同,此处不在赘述。Thedistal marking structure 90 and thefirst marking structure 30 have different developing strengths, different developing sizes and/or different developing shapes under the medical imaging equipment. The implementation manners of different developing intensities, developing sizes and developing shapes are the same as above, and will not be repeated here.

远端标记结构90与第一标记结构30在医学影像设备下的显影强度不同和/或显影形状不同,使得在手术过程中,能够区分远端标记结构90和第一标记结构30,有利于判断两个第一标记结构30与远端标记结构90的连线所成三角形的高度变化,使手术顺利进行。Thedistal marking structure 90 and thefirst marking structure 30 have different developing strengths and/or different developing shapes under medical imaging equipment, so that during the operation, thedistal marking structure 90 and thefirst marking structure 30 can be distinguished, which is beneficial to judgment The height of the triangle formed by the connecting lines of the twofirst marking structures 30 and thedistal marking structures 90 changes, so that the operation can be carried out smoothly.

以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

Translated fromChinese
1.一种封堵器,包括封堵框架,其特征在于,所述封堵框架包括第一封堵单元、第二封堵单元和腰部,所述腰部的两端分别连接所述第一封堵单元和所述第二封堵单元,所述第一封堵单元上设置有多个第一标记结构,所述第二封堵单元上设置有多个第二标记结构,所述腰部上设置有多个第三标记结构,在医学影像设备下的光源的至少一入射方向下,所述多个第一标记结构的中心连线呈直线,所述多个第二标记结构的中心连线呈直线,所述多个第三标记结构的中心连线呈直线,并且,所述多个第一标记结构、所述多个第二标记结构和所述多个第三标记结构在医学影像设备下的显影强度不同、显影大小不同和/或显影形状不同,所述第一标记结构和/或所述第二标记结构和/或所述第三标记结构的数量至少为3个,且在自然状态下,所述至少3个第一标记结构和/或所述至少3个第二标记结构和/或所述至少3个第三标记结构不在同一直线上。1. An occluder comprising an occlusion frame, characterized in that the occlusion frame comprises a first occlusion unit, a second occlusion unit and a waist, two ends of the waist are respectively connected to the first seal. A blocking unit and the second blocking unit, the first blocking unit is provided with a plurality of first marking structures, the second blocking unit is provided with a plurality of second marking structures, and the waist is provided with There are a plurality of third marking structures, and in at least one incident direction of the light source under the medical imaging device, the central connecting lines of the plurality of first marking structures are straight lines, and the central connecting lines of the plurality of second marking structures are straight lines. A straight line, the center connecting line of the plurality of third marking structures is a straight line, and the plurality of first marking structures, the plurality of second marking structures and the plurality of third marking structures are under the medical imaging equipment Different developing strengths, different developing sizes and/or different developing shapes, the number of the first marking structure and/or the second marking structure and/or the third marking structure is at least 3, and in the natural state However, the at least three first marking structures and/or the at least three second marking structures and/or the at least three third marking structures are not on the same straight line.2.根据权利要求1所述的封堵器,其特征在于,所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同,且所述第一标记结构、所述第二标记结构和所述第三标记结构的厚度不同。2 . The occluder according to claim 1 , wherein the density of materials of the first marking structure, the second marking structure and the third marking structure is different, and the first marking structure , the thicknesses of the second marking structure and the third marking structure are different.3.根据权利要求1或2所述的封堵器,其特征在于,当所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同时,所述第一标记结构、所述第二标记结构和所述第三标记结构的之间的厚度差至少为80微米;并且,所述第一标记结构、所述第二标记结构和所述第三标记结构中的任一个的最小厚度为70微米。3. The occluder according to claim 1 or 2, wherein when the density of the materials of the first marking structure, the second marking structure and the third marking structure is different, the first marking structure The thickness difference between a marking structure, the second marking structure and the third marking structure is at least 80 microns; and the first marking structure, the second marking structure and the third marking structure The minimum thickness of either is 70 microns.4.根据权利要求1所述的封堵器,其特征在于,当所述第一标记结构、所述第二标记结构和所述第三标记结构的材料的密度不同,且所述第一标记结构所述第二标记结构和所述第三标记结构的厚度不同时,所述第一标记结构、所述第二标记结构和所述第三标记结构的表面积大小差异至少为0.2平方毫米;并且,所述第一标记结构、所述第二标记结构和所述第三标记结构的中的任一个的表面积的至少为0.2平方毫米。4 . The occluder according to claim 1 , wherein when the densities of the materials of the first marking structure, the second marking structure and the third marking structure are different, and the first marking structure When the thicknesses of the second marking structure and the third marking structure are different, the difference in surface area size between the first marking structure, the second marking structure and the third marking structure is at least 0.2 mm2; and , the surface area of any one of the first marking structure, the second marking structure and the third marking structure is at least 0.2 square millimeters.5.根据权利要求1所述的封堵器,其特征在于,所述封堵器还包括第一阻流膜、第二阻流膜和第三阻流膜,所述第一阻流膜设置于所述第一封堵单元上,所述第二阻流膜设置于所述第二封堵单元上,所述第三阻流膜设置于所腰部上。5 . The occluder according to claim 1 , wherein the occluder further comprises a first blocking film, a second blocking film and a third blocking film, and the first blocking film is provided with the first blocking film. 6 . On the first blocking unit, the second blocking film is disposed on the second blocking unit, and the third blocking film is disposed on the waist.6.根据权利要求5所述的封堵器,其特征在于,所述第一阻流膜包括层叠设置的第一上层膜和第一下层膜,所述多个第一标记结构设置于所述第一上层膜和所述第一下层膜之间;所述第二阻流膜包括层叠设置的第二上层膜和第二下层膜,所述多个第二标记结构设置于所述第二上层膜和所述第二下层膜之间;所述第三阻流膜包括层叠设置的第三上层膜和第三下层膜,所述多个第三标记结构设置于所述第三上层膜和所述第三下层膜之间。6 . The occluder according to claim 5 , wherein the first blocking film comprises a first upper film and a first lower film that are arranged in layers, and the plurality of first marking structures are arranged on the between the first upper layer film and the first lower layer film; the second flow blocking film includes a second upper layer film and a second lower layer film that are arranged in layers, and the plurality of second mark structures are arranged on the first Between the second upper layer film and the second lower layer film; the third flow blocking film includes a third upper layer film and a third lower layer film that are arranged in layers, and the plurality of third marking structures are arranged on the third upper layer film and the third underlayer film.7.根据权利要求5所述的封堵器,其特征在于,每个所述第一标记结构的边缘至所述第一阻流膜的边缘的距离为0~2毫米,每个所述第二标记结构的边缘至所述第二阻流膜的边缘的距离为0~2毫米,每个所述第三标记结构的边缘至所述第三阻流膜的边缘的距离为0~2毫米。7 . The occluder according to claim 5 , wherein the distance from the edge of each first marking structure to the edge of the first blocking film is 0-2 mm, and each of the first marking structures is 0-2 mm. 8 . The distance from the edge of the two marking structures to the edge of the second blocking film is 0-2 mm, and the distance from the edge of each third marking structure to the edge of the third blocking film is 0-2 mm .8.根据权利要求5所述的封堵器,其特征在于,当所述封堵器处于拉伸状态时,所述第一阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第一阻流膜的边缘收缩而形成第一袋状结构,所述多个第一标记结构位于所述第一袋状结构的内部;所述第二阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第二阻流膜的边缘收缩而形成第二袋状结构,所述多个第二标记结构位于所述第二袋状结构的内部;所述第三阻流膜的中心向靠近所述封堵器的远端方向或近端方向延伸,且所述第三阻流膜的边缘收缩而形成第三袋状结构,所述多个第三标记结构位于所述第三袋状结构的内部。8 . The occluder according to claim 5 , wherein when the occluder is in a stretched state, the center of the first baffle film is directed toward the distal end of the occluder or The proximal direction extends, and the edge of the first blocking film shrinks to form a first pocket structure, and the plurality of first marking structures are located inside the first pocket structure; the second blocking film The center of the occluder extends toward the distal or proximal direction of the occluder, and the edge of the second baffle film shrinks to form a second bag-like structure, and the plurality of second marking structures are located in the first The inside of the two bag-like structures; the center of the third blocking film extends toward the distal or proximal direction of the occluder, and the edge of the third blocking film shrinks to form a third pocket structure, the plurality of third marking structures are located inside the third pocket structure.9.根据权利要求1所述的封堵器,其特征在于,所述第一标记结构的数量至少为3个,且在自然状态下,所述至少3个第一标记结构的连线为正多边形;9 . The occluder according to claim 1 , wherein the number of the first marking structures is at least three, and in a natural state, the connection lines of the at least three first marking structures are positive. 10 . polygon;所述第二标记结构的数量至少为3个,且在自然状态下,所述至少3个第二标记结构的连线为正多边形;The number of the second marking structures is at least three, and in a natural state, the connecting lines of the at least three second marking structures are regular polygons;所述第三标记结构的数量至少为3个,且在自然状态下,所述至少3个第三标记结构的连线为正多边形。The number of the third marking structures is at least three, and in a natural state, the connecting lines of the at least three third marking structures are regular polygons.10.根据权利要求1所述的封堵器,其特征在于,所述封堵器还包括远端封头和远端标记结构,所述远端封头与所述第一封堵单元的远离所述腰部的一端相连,所述远端标记结构设于所述远端封头上,并且,所述远端标记结构与所述第一标记结构在医学影像设备下的显影强度不同、显影大小和/或显影形状不同。10 . The occluder according to claim 1 , wherein the occluder further comprises a distal sealing head and a distal marking structure, the distal sealing head being away from the first occlusion unit. 11 . One end of the waist is connected, the distal marking structure is arranged on the distal sealing head, and the distal marking structure and the first marking structure have different developing strengths and developing sizes under medical imaging equipment. and/or developed shapes are different.
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