CN114681115A - Film-coated tube shaping device and method and preparation method of film-coated stent - Google Patents

本发明提供了一种覆膜管定型装置及定型方法、覆膜支架的制备方法，所述覆膜管定型装置包括主管段、至少两个分叉管段以及至少两个分支管段；所述主管段与至少两个所述分叉管段的近端可拆卸地连接；每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接。如此设置，使得所述覆膜管定型装置包括主管段、分叉管段以及分支管段三个部分，三个部分能够分别置入分叉覆膜管的主体段、分叉段以及分支段，每个部分能够分别与分叉覆膜管的各个部分相互适配，进而降低分叉覆膜管在定型过程中被撕裂的风险，提高定型之后的分叉覆膜管的合格率，降低了定型工序的难度，降低生产损耗以及生产成本。

The invention provides a film-covered tube shaping device, a shaping method, and a preparation method of a covered stent. The film-covered tube shaping device includes a main pipe section, at least two bifurcated pipe sections and at least two branch pipe sections; the main pipe section Removably connected with the proximal ends of at least two of the bifurcated pipe sections; the distal end of each of the bifurcated pipe sections is detachably connected with the proximal end of one of the branch pipe sections, respectively. In this way, the film-coated tube sizing device includes three parts: a main pipe section, a bifurcated pipe section and a branch pipe section. Parts can be adapted to each part of the bifurcated film-coated tube, thereby reducing the risk of the bifurcated film-coated tube being torn during the shaping process, improving the pass rate of the bifurcated coating tube after shaping, and reducing the shaping process. The difficulty of reducing production loss and production cost.

覆膜管定型装置及定型方法、覆膜支架的制备方法Covered tube shaping device and shaping method, and preparation method of covered stent

技术领域technical field

本发明涉及医疗器械领域，特别涉及一种覆膜管定型装置及定型方法、覆膜支架的制备方法。The invention relates to the field of medical devices, in particular to a film-covered tube shaping device and shaping method, and a preparation method of a covered stent.

背景技术Background technique

近年来，覆膜支架已经成为人工血管的主流产品，主要用于治疗主动脉夹层和动脉瘤等疾病。覆膜支架主要包括金属支架和覆膜，覆膜主要起到阻血作用，金属支架主要用于支撑覆膜保持其形状。覆膜的材质主要是聚四氟乙烯和聚酯等。传统的覆膜支架上的覆膜一般是由平面覆膜经过缝合而形成的覆膜管，其存在如下缺陷：在缝合处渗水量大，使得覆膜管的强度降低；缝合主要依靠手工完成，生产效率低，甚至缝合失败导致产品报废。目前发展的覆膜管为一体式的覆膜管，其通过编织工艺直接编织出覆膜管，不再需要后续手工缝合成管状。显而易见地，这一工艺很好地克服了由平面覆膜经过缝合而形成的覆膜管的不足。In recent years, stent-grafts have become the mainstream product of artificial blood vessels, mainly used to treat diseases such as aortic dissection and aneurysm. The covered stent mainly includes a metal stent and a covering, the covering is mainly used to block blood, and the metal stent is mainly used to support the covering to maintain its shape. The material of the film is mainly PTFE and polyester. The covering on the traditional covered stent is generally a covered tube formed by suturing a flat covering, which has the following defects: a large amount of water seeps at the suture, which reduces the strength of the covered tube; the suturing is mainly done by hand, The production efficiency is low, and even the stitching failure causes the product to be scrapped. The currently developed coated tube is an integrated coated tube, which is directly woven into the coated tube through a weaving process, and no subsequent manual stitching is required to form a tube. Obviously, this process well overcomes the insufficiency of the coated tube formed by stitching the flat coating.

由于一体式的覆膜管呈扁平状，影响后续缝合支架等工序，因此需要将覆膜管定型装置置入一体式的覆膜管内部，对一体式的覆膜管进行定型。常规的覆膜管分为直覆膜管、锥形覆膜管和分叉覆膜管等。如图1所示，图1为一分叉覆膜管的示意图。分叉覆膜管10包括：主体段11、分叉段12以及分支段13，分叉段12的一端与主体段11连接，分叉段12的另一端与分支段13连接。然而，在对分叉覆膜管10进行定型的工序中，由于主体段11过渡至两个分叉段12时，结构发生变化，覆膜管定型装置从主体段11置入分叉覆膜管10中时，覆膜管定型装置的形状与主体段11或者分叉段12的结构不匹配，使分叉覆膜管10发生撕裂，尤其是分叉覆膜管10的薄弱点容易被撕裂，如果遇到两个分叉段12的径向尺寸大于主体段11的径向尺寸时，覆膜管定型装置则无法安装至其中，使得定型工序难度很大，进而降低覆膜产品的合格率，生产损耗大。Since the one-piece covered tube is flat, which affects subsequent procedures such as suturing the stent, it is necessary to insert the shaping device for the one-piece covered tube into the inside of the one-piece covered tube to shape the one-piece covered tube. Conventional coated tubes are divided into straight coated tubes, tapered coated tubes and bifurcated coated tubes. As shown in FIG. 1 , FIG. 1 is a schematic diagram of a bifurcated coated tube. The bifurcated coated tube 10 includes a main body section 11 , a bifurcated section 12 and a branch section 13 . However, in the process of shaping the bifurcated film-coated tube 10, due to the structural change when the main body section 11 transitions to the two bifurcated sections 12, the film-coated tube shaping device is inserted from the main body section 11 into the bifurcated film-coated tube 10, the shape of the film-coated tube shaping device does not match the structure of the main body section 11 or the bifurcated section 12, so that the bifurcated film-coated tube 10 is torn, especially the weak point of the bifurcated film-coated tube 10 is easily torn. If the radial dimension of the two bifurcated sections 12 is larger than the radial dimension of the main section 11, the film-coated tube shaping device cannot be installed in it, which makes the shaping process very difficult and reduces the qualification of the film-coated product. rate, the production loss is large.

因此，开发出一种能够与分叉覆膜管的结构匹配、使得分叉覆膜管不易撕裂，进而降低定型工序的难度、提高分叉覆膜管合格率的覆膜管定型装置，已成为覆膜加工厂家亟待解决的问题。Therefore, a film-coated tube shaping device has been developed that can match the structure of the bifurcated film-coated tube, so that the bifurcated film-coated tube is not easily torn, thereby reducing the difficulty of the shaping process and improving the qualification rate of the bifurcated film-coated tube. It has become an urgent problem to be solved by laminating manufacturers.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种覆膜管定型装置及定型方法、覆膜支架的制备方法，以解决在分叉覆膜管在定型工序中，定型工序难度大、分叉覆膜管易撕裂、合格率低的问题。The purpose of the present invention is to provide a film-coated tube shaping device, a shaping method, and a preparation method of a covered stent, so as to solve the problem that in the shaping process of the bifurcated membrane-coated tube, the shaping process is difficult and the bifurcated membrane-coated tube is easy to tear. , the problem of low pass rate.

为解决上述技术问题，本发明提供一种覆膜管定型装置，包括：主管段、至少两个分叉管段以及至少两个分支管段；所述主管段与至少两个所述分叉管段的近端可拆卸地连接；每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接。In order to solve the above technical problems, the present invention provides a film-coated pipe shaping device, comprising: a main pipe section, at least two bifurcated pipe sections and at least two branch pipe sections; The ends are removably connected; the distal end of each of the bifurcated tube segments is removably connected to the proximal end of one of the branch tube segments, respectively.

可选的，所述覆膜管定型装置包括两个所述分叉管段以及两个所述分支管段，所述分叉管段的远端的径向尺寸与所述分支管段的近端的径向尺寸相同，两个所述分叉管段的远端的径向尺寸之和大于所述主管段的远端的径向尺寸。Optionally, the film-coated tube sizing device includes two of the bifurcated tube sections and two of the branch tube sections, and the radial dimension of the distal end of the bifurcated tube section is the same as the radial dimension of the proximal end of the branch tube section. Having the same dimensions, the sum of the radial dimensions of the distal ends of the two bifurcated tubular segments is greater than the radial dimension of the distal ends of the main tubular segments.

可选的，两个所述分叉管段沿所述主管段的中心轴对称设置。Optionally, the two bifurcated pipe sections are symmetrically arranged along the central axis of the main pipe section.

可选的，所述分叉管段包括分叉端部以及手柄，所述分叉端部用于与一分叉覆膜管的分叉段相适配，所述分叉端部的远端与所述分支管段的近端可拆卸地连接，所述分叉端部的近端与所述手柄的远端连接，所述手柄的近端与所述主管段可拆卸地连接，所述主管段设有一与所述手柄相匹配的手柄通孔；所述手柄设置在所述手柄通孔内。Optionally, the bifurcated tube section includes a bifurcated end portion and a handle, the bifurcated end portion is adapted to fit with a bifurcated section of a bifurcated film-coated tube, and the distal end of the bifurcated end portion is compatible with the bifurcated end portion. The proximal end of the branch pipe section is detachably connected, the proximal end of the bifurcated end is connected with the distal end of the handle, and the proximal end of the handle is detachably connected with the main pipe section, the main pipe section is provided with a A handle through hole matched with the handle; the handle is arranged in the handle through hole.

可选的，所述覆膜管定型装置包括两个所述分叉管段，每个所述分叉管段包括一个所述分叉端部，两个所述分叉端部的近端的径向尺寸之和与所述主管段远端的径向尺寸相等，所述分叉端部的远端的径向尺寸大于所述分叉端部的近端的径向尺寸。Optionally, the film-coated tube shaping device includes two of the bifurcated tube sections, each of the bifurcated tube sections includes one of the bifurcated ends, and the radial direction of the proximal ends of the two bifurcated ends. The sum of the dimensions is equal to the radial dimension of the distal end of the main pipe section, and the radial dimension of the distal end of the bifurcated end is greater than the radial dimension of the proximal end of the bifurcated end.

可选的，每个所述分叉端部具有一轴线，两个所述分叉端部的轴线之间的夹角为锐角。Optionally, each of the bifurcated ends has an axis, and the included angle between the axes of the two bifurcated ends is an acute angle.

可选的，所述手柄为圆柱体结构。Optionally, the handle has a cylindrical structure.

可选的，所述手柄的远端突出于所述手柄通孔之外，所述手柄通孔的径向尺寸大于所述手柄的径向尺寸。Optionally, the distal end of the handle protrudes out of the handle through hole, and the radial dimension of the handle through hole is larger than the radial dimension of the handle.

可选的，所述手柄为多边体结构，所述手柄用于调整所述分叉端部，以使得所述分叉端部的轴线与所述分叉覆膜管的分叉段的轴线相重合。Optionally, the handle is a polygonal structure, and the handle is used to adjust the bifurcated end so that the axis of the bifurcated end is in line with the axis of the bifurcated section of the bifurcated film-coated tube. coincide.

可选的，所述分叉管段还包括定位体，所述定位体的两端分别与所述分叉端部以及所述手柄连接，所述定位体与所述手柄的轴线平行设置，所述定位体用于调整所述分叉端部，以使得所述分叉端部的轴线与所述分叉覆膜管的分叉段的轴线相重合。Optionally, the bifurcated pipe section further includes a positioning body, two ends of the positioning body are respectively connected to the bifurcated end and the handle, the positioning body is arranged parallel to the axis of the handle, the The positioning body is used to adjust the bifurcated end so that the axis of the bifurcated end coincides with the axis of the bifurcated section of the bifurcated film-coated tube.

可选的，所述定位体为多边形的杆件。Optionally, the positioning body is a polygonal rod.

可选的，所述定位体为长方体。Optionally, the positioning body is a cuboid.

可选的，所述定位体与所述手柄的长度之和大于所述手柄通孔的长度。Optionally, the sum of the lengths of the positioning body and the handle is greater than the length of the handle through hole.

可选的，所述定位体的材料为不锈钢或尼龙。Optionally, the material of the positioning body is stainless steel or nylon.

可选的，所述定位体的径向尺寸小于所述主管段的径向尺寸。Optionally, the radial dimension of the positioning body is smaller than the radial dimension of the main pipe section.

可选的，所述分叉端部、所述手柄以及所述定位体一体加工成型。Optionally, the bifurcated end, the handle and the positioning body are integrally formed.

可选的，所述覆膜管定型装置还包括第一连接部和第二连接部，所述第一连接部设置于所述分叉管段的远端，所述第二连接部设置于所述分支管段的近端；所述第一连接部与所述第二连接部相适配。Optionally, the film-coated tube shaping device further includes a first connection part and a second connection part, the first connection part is arranged at the distal end of the bifurcated tube segment, and the second connection part is arranged at the the proximal end of the branch pipe segment; the first connecting portion is adapted to the second connecting portion.

可选的，所述第一连接部与所述第二连接部之一者包括一凹槽，所述第一连接部与所述第二连接部之另一者包括一凸起，所述凹槽与所述凸起相适配。Optionally, one of the first connecting portion and the second connecting portion includes a groove, the other one of the first connecting portion and the second connecting portion includes a protrusion, and the concave The grooves fit with the protrusions.

可选的，所述覆膜管定型装置采用热膨胀系数大于60x 10^-6m/mk的材料制成。Optionally, the film-coated tube shaping device is made of a material with a thermal expansion coefficient greater than 60×10 ^-6 m/mk.

为解决上述技术问题，本发明还提供一种覆膜管的定型方法，用于分叉覆膜管的定型，所述分叉覆膜管包括相连的主体段、至少两个分叉段以及至少两个分支段，采用如上所述的覆膜管定型装置实现，所述覆膜管的定型方法包括：将每个所述分支管段分别从所述分叉覆膜管的远端置入到一个所述分支段中；将每个所述分叉管段分别从所述分叉覆膜管的近端置入到一个所述分叉段中；将每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接；将所述主管段从所述分叉覆膜管的近端置入到所述主体段中，并与所述至少两个分叉管段的近端可拆卸地连接。In order to solve the above-mentioned technical problems, the present invention also provides a method for shaping a film-coated pipe, which is used for shaping a bifurcated film-coated pipe, wherein the bifurcated film-coated pipe includes a connected main body section, at least two The two branch sections are realized by the above-mentioned film-coated tube shaping device, and the shaping method of the film-coated tube includes: inserting each of the branch tube sections from the distal end of the bifurcated film-coated tube into a In the branched section; each of the bifurcated tube sections is respectively inserted into one of the bifurcated sections from the proximal end of the bifurcated film-coated tube; the distal end of each of the bifurcated tube sections is respectively connected to the The proximal end of one of the branch tube sections is detachably connected; the main section is inserted into the main body section from the proximal end of the bifurcated coated tube, and is connected to the proximal end of the at least two bifurcated tube sections. The ends are detachably connected.

可选的，所述分叉管段包括分叉端部、定位体以及手柄，所述定位体的两端分别与所述分叉端部以及所述手柄连接；在将每个所述分支管段的远端分别与一个所述分支管段的近端可拆卸地连接之前，调整至少两个所述分叉管段的定位体的朝向，使得所述分叉端部与所述分叉段相适配。Optionally, the bifurcated pipe section includes a bifurcated end, a positioning body and a handle, and both ends of the positioning body are respectively connected to the bifurcated end and the handle; Before the distal ends are respectively detachably connected to the proximal ends of one of the branched pipe sections, the orientation of the positioning bodies of at least two of the branched pipe sections is adjusted so that the forked ends are adapted to the branched sections.

为解决上述技术问题，本发明还提供一种覆膜支架的制备方法，包括：利用如上所述的覆膜管定型装置对分叉覆膜管进行定型；将定型之后的分叉覆膜管与支架进行缝合形成覆膜支架。In order to solve the above technical problems, the present invention also provides a method for preparing a covered stent, comprising: using the above-mentioned film-covered tube shaping device to shape the bifurcated covered tube; The stent is sutured to form a covered stent.

在本发明提供的一种覆膜管定型装置及定型方法、覆膜支架的制备方法中，所述覆膜管定型装置包括主管段、至少两个分叉管段以及至少两个分支管段；所述主管段与至少两个所述分叉管段的近端可拆卸地连接；每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接。如此设置，使得所述覆膜管定型装置包括主管段、分叉管段以及分支管段三个部分，三个部分能够分别置入分叉覆膜管的主体段、分叉段以及分支段，每个部分能够分别与分叉覆膜管的各个部分相互适配，进而降低分叉覆膜管在定型过程中被撕裂的风险，提高定型之后的分叉覆膜管的合格率，降低了定型工序的难度，降低生产损耗以及生产成本。In a film-covered tube shaping device and shaping method, and a method for preparing a covered stent provided by the present invention, the film-covered tube shaping device includes a main pipe section, at least two bifurcated pipe sections and at least two branch pipe sections; the The main pipe section is detachably connected with the proximal ends of at least two of the bifurcated pipe sections; the distal end of each of the bifurcated pipe sections is detachably connected with the proximal end of one of the branch pipe sections, respectively. In this way, the film-coated tube sizing device includes three parts: a main pipe section, a bifurcated pipe section and a branch pipe section. Parts can be adapted to each part of the bifurcated film-coated tube, thereby reducing the risk of the bifurcated film-coated tube being torn during the shaping process, improving the pass rate of the bifurcated coating tube after shaping, and reducing the shaping process. The difficulty of reducing production loss and production cost.

附图说明Description of drawings

本领域的普通技术人员将会理解，提供的附图用于更好地理解本发明，而不对本发明的范围构成任何限定。其中：Those of ordinary skill in the art will appreciate that the accompanying drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention. in:

图1为一分叉覆膜管的示意图；Fig. 1 is the schematic diagram of a bifurcated film-coated tube;

图2为本发明一实施例的覆膜管定型装置的示意图；2 is a schematic diagram of a film-coated tube shaping device according to an embodiment of the present invention;

图3为本发明一实施例的主管段的示意图；3 is a schematic diagram of a main pipe section according to an embodiment of the present invention;

图4为图3所示的主管段的左视图；Figure 4 is a left side view of the main pipe section shown in Figure 3;

图5为本发明一实施例的两个分叉管段的主视图；5 is a front view of two bifurcated pipe sections according to an embodiment of the present invention;

图6为图5所示的分叉管段的俯视图；Figure 6 is a top view of the bifurcated pipe section shown in Figure 5;

图7为本发明一实施例的两个分支管段的示意图；7 is a schematic diagram of two branch pipe sections according to an embodiment of the present invention;

图8为图7所示的分支管段的左视图；Figure 8 is a left side view of the branch pipe section shown in Figure 7;

图9为本发明一实施例的覆膜管定型装置的使用方法的示意图。FIG. 9 is a schematic diagram of a method of using the film-coated tube shaping device according to an embodiment of the present invention.

附图中：In the attached picture:

10-分叉覆膜管，11-主体段，12-分叉段，13-分支段；10 - bifurcated coated tube, 11 - main body section, 12 - bifurcated section, 13 - branch section;

100-主管段，110-手柄通孔；100-main pipe section, 110-handle through hole;

200-分叉管段，201-第一分叉管段，202-第二分叉管段，210-分叉端部，220-手柄，230-定位体，231-窄边，232-宽边，240-第一连接部；200- bifurcated pipe section, 201- first bifurcated pipe section, 202- second bifurcated pipe section, 210- bifurcated end, 220-handle, 230-positioning body, 231-narrow side, 232-broad side, 240- the first connecting part;

300-分支管段，301-第一分叉管段，302-第二分叉管段，310-第二连接部。300 - branch pipe section, 301 - first branch pipe section, 302 - second branch pipe section, 310 - second connection part.

具体实施方式Detailed ways

为使本发明的目的、优点和特征更加清楚，以下结合附图和具体实施例对本发明作进一步详细说明。需说明的是，附图均采用非常简化的形式且未按比例绘制，仅用以方便、明晰地辅助说明本发明实施例的目的。此外，附图所展示的结构往往是实际结构的一部分。特别的，各附图需要展示的侧重点不同，有时会采用不同的比例。In order to make the objects, advantages and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in a very simplified form and are not drawn to scale, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention. Furthermore, the structures shown in the drawings are often part of the actual structure. In particular, each drawing needs to show different emphases, and sometimes different scales are used.

如在本说明书中所使用的，术语“或”通常是以包括“和/或”的含义而进行使用的，除非内容另外明确指出外。此外，在以下说明中，为了便于描述，使用了“远端”和“近端”；“近端”与“远端”表示相对的两端。另外，在下文的描述中，给出了大量具体的细节以便提供对本发明更为彻底的理解。然而，对于本领域技术人员而言显而易见的是，本发明可以无需一个或多个这些细节而得以实施。在其他的例子中，为了避免与本发明发生混淆，对于本领域公知的一些技术特征未进行描述。As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise. In addition, in the following description, for convenience of description, "distal end" and "proximal end" are used; "proximal end" and "distal end" denote opposite ends. Furthermore, in the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other instances, some technical features known in the art have not been described in order to avoid obscuring the present invention.

本发明实施例提供了一种覆膜管定型装置及定型方法、覆膜支架的制备方法，所述覆膜管定型装置包括主管段、至少两个分叉管段以及至少两个分支管段；所述主管段与至少两个所述分叉管段的近端可拆卸地连接；每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接。如此设置，使得所述覆膜管定型装置包括主管段、分叉管段以及分支管段三个部分，三个部分能够分别置入分叉覆膜管的主体段、分叉段以及分支段，每个部分能够分别与分叉覆膜管的各个部分相互适配，进而降低分叉覆膜管在定型过程中被撕裂的风险，提高定型之后的分叉覆膜管的合格率，降低了定型工序的难度，降低生产损耗以及生产成本。进一步的，所述分叉管段包括分叉端部以及手柄，所述手柄用于操作者将所述分叉端部从分叉覆膜管的近端置入所述分叉段。更进一步的，所述分叉管段还包括定位体，所述定位体的两端分别与所述分叉端部以及所述手柄连接，所述定位体用于确定所述分叉端部的轴线与所述分叉段的轴线重合，进而确保分叉端部能够与分叉段相适配。Embodiments of the present invention provide a film-covered tube shaping device, a shaping method, and a method for preparing a covered stent, wherein the film-covered tube shaping device includes a main pipe section, at least two bifurcated pipe sections, and at least two branch pipe sections; the The main pipe section is detachably connected with the proximal ends of at least two of the bifurcated pipe sections; the distal end of each of the bifurcated pipe sections is detachably connected with the proximal end of one of the branch pipe sections, respectively. In this way, the film-coated tube sizing device includes three parts: a main pipe section, a bifurcated pipe section and a branch pipe section. Parts can be adapted to each part of the bifurcated film-coated tube, thereby reducing the risk of the bifurcated film-coated tube being torn during the shaping process, improving the pass rate of the bifurcated coating tube after shaping, and reducing the shaping process. The difficulty of reducing production loss and production cost. Further, the bifurcated tube section includes a bifurcated end portion and a handle, and the handle is used for the operator to place the bifurcated end portion into the bifurcated section from the proximal end of the bifurcated coated tube. Further, the bifurcated pipe section further includes a positioning body, two ends of the positioning body are respectively connected with the bifurcated end and the handle, and the positioning body is used to determine the axis of the bifurcated end Coinciding with the axis of the bifurcated section, thereby ensuring that the bifurcated end can fit with the bifurcated section.

以下参考附图进行描述。The following description is made with reference to the accompanying drawings.

图1为一分叉覆膜管的示意图；图2为本发明一实施例的覆膜管定型装置的示意图；图3为本发明一实施例的主管段的示意图；图4为图3所示的主管段的左视图；图5为本发明一实施例的两个分叉管段的主视图；图6为图5所示的分叉管段的俯视图；图7为本发明一实施例的两个分支管段的示意图；图8为图7所示的分支管段的左视图；图9为本发明一实施例的覆膜管定型装置的使用方法的示意图。Fig. 1 is a schematic diagram of a bifurcated film-coated pipe; Fig. 2 is a schematic diagram of a film-coated pipe shaping device according to an embodiment of the present invention; Fig. 3 is a schematic diagram of a main pipe section of an embodiment of the present invention; Fig. 4 is shown in Fig. 3 Figure 5 is a front view of two bifurcated pipe sections according to an embodiment of the present invention; Figure 6 is a top view of the bifurcated pipe section shown in Figure 5; A schematic diagram of a branch pipe section; FIG. 8 is a left side view of the branch pipe section shown in FIG. 7 ; FIG. 9 is a schematic diagram of a method of using the film-coated pipe shaping device according to an embodiment of the present invention.

请参考图1至图8，在覆膜管定型的工序中，将覆膜管定型装置放置于所述分叉覆膜管10的内部，所述覆膜管定型装置的外表形状与所述分叉覆膜管10直接贴合并将所述分叉覆膜管10进行定型并支撑起来，定型后的分叉覆膜管10以便于后续缝合支架等工序，提高后续工序生产过程中的产品质量。请参考图1，靠近所述分叉覆膜管10的主体段11一侧为分叉覆膜管10的近端；靠近所述分叉覆膜管10的分支段13的一侧为分叉覆膜管10的远端。以下将采用如上的分叉覆膜管10的“近端”与“远端”表示与之相适配的覆膜管定型装置的各个部分的两端。Please refer to FIG. 1 to FIG. 8 , in the process of forming the coated tube, the forming device for the coated tube is placed inside the bifurcated coated tube 10 . The bifurcated film-coated tube 10 is directly attached and shaped and supported. The shaped bifurcated film-coated tube 10 facilitates subsequent procedures such as suturing the stent and improves product quality in the subsequent production process. Please refer to FIG. 1 , the side close to the main body section 11 of the bifurcated coated tube 10 is the proximal end of the bifurcated coated tube 10 ; the side close to the branch section 13 of the bifurcated coated tube 10 is the bifurcation The distal end of the covered tube 10. Hereinafter, the "proximal end" and "distal end" of the bifurcated coated tube 10 as above will be used to refer to the two ends of the respective parts of the coated tube shaping device adapted therewith.

如图2所示，所述覆膜管定型装置包括：主管段100、至少两个分叉管段200以及至少两个分支管段300。As shown in FIG. 2 , the film-coated pipe shaping device includes: a main pipe section 100 , at least two branch pipe sections 200 and at least two branch pipe sections 300 .

如图3所示，所述主管段100用于与分叉覆膜管10的主体段11相适配，例如，所述主体段11的形状为圆柱形，则所述主管段100的形状亦为圆柱形，所述主管段100的直径与所述主体段11的内径相适配，进而使得所述主管段100能够将所述主体段11进行定型并支撑起来。在其他的实施例中，所述主管段100的形状根据主体段11的形状的变化进行适应性的调整，例如是椭圆形等。As shown in FIG. 3 , the main pipe section 100 is adapted to fit with the main section 11 of the bifurcated film-coated pipe 10 . For example, if the main section 11 is cylindrical in shape, the main pipe section 100 also has a shape. Being cylindrical, the diameter of the main pipe section 100 is adapted to the inner diameter of the main body section 11 , so that the main pipe section 100 can shape and support the main body section 11 . In other embodiments, the shape of the main pipe section 100 is adaptively adjusted according to the change of the shape of the main body section 11 , such as an oval shape or the like.

如图2所示，所述分叉管段200与分叉段12相适配，例如，所述分叉段12的形状为斜圆柱体或者斜圆锥柱体，或者所述分叉段12与所述主体段11连接时其结构变为斜圆柱体、斜圆锥柱体时，所述分叉管段200用于与分叉覆膜管10贴合的部分的形状也是斜圆柱体或者斜圆锥柱体；所述分叉覆膜管10包括两个分叉段12，则覆膜管定型装置包括两个分叉管段200；两个所述分叉段12的轴线之间的夹角为锐角，两个所述分叉管段200的轴线之间的夹角也适应性的为锐角，进而使得分叉管段200能够将所述分叉段12进行定型并支撑起来。在本实施例中，如图2所示，优选的，两个分叉管段200分别为第一分叉管段201以及第二分叉管段202，两个分叉管段200沿主管段100的中心轴对称设置。当然，两个分叉管段200还可以不是对称设置，例如，两个分叉管段200与分叉段12接触的部分的形状可以是两种不同的形状或者不同的尺寸。在其他的实施例中，所述分叉管段200的数量以及形状可以根据分叉段12进行设置，例如分叉段12的数量为三个，所述分叉管段200的数量也为三个，各个分叉管段200之间的角度也可以根据各个分叉段12之间的角度进行适配。As shown in FIG. 2 , the bifurcated pipe section 200 is adapted to the bifurcated section 12. For example, the shape of the bifurcated section 12 is an oblique cylinder or an oblique conical cylinder, or the bifurcated section 12 and the When the main body section 11 is connected, its structure becomes an oblique cylinder or an oblique conical cylinder, and the shape of the part of the bifurcated tube section 200 used to fit the bifurcated film-coated tube 10 is also an oblique cylinder or an oblique conical cylinder. The bifurcated film-coated tube 10 includes two bifurcated sections 12, and the film-coated tube shaping device includes two bifurcated tube sections 200; the included angle between the axes of the two bifurcated sections 12 is an acute angle, and the two The included angle between the axes of each of the bifurcated pipe sections 200 is also adapted to be an acute angle, so that the bifurcated pipe section 200 can shape and support the bifurcated pipe section 12 . In this embodiment, as shown in FIG. 2 , preferably, the two bifurcated pipe sections 200 are a first bifurcated pipe section 201 and a second bifurcated pipe section 202 , and the two bifurcated pipe sections 200 are along the central axis of the main pipe section 100 . Symmetrical settings. Of course, the two bifurcated pipe sections 200 may not be symmetrically arranged, for example, the shapes of the parts of the two bifurcated pipe sections 200 in contact with the bifurcated section 12 may be two different shapes or different sizes. In other embodiments, the number and shape of the bifurcated pipe sections 200 may be set according to the bifurcated sections 12, for example, the number of the bifurcated sections 12 is three, and the number of the bifurcated pipe sections 200 is also three, The angles between the respective bifurcated pipe sections 200 may also be adapted according to the angles between the respective bifurcated sections 12 .

如图2与图7所示，所述分支管段300与分支段13相适配，分支段13的形状为圆柱形，则所述分支管段300的形状亦为圆柱形，所述分支管段300的直径与分支段13的内径相适配，例如分支管段300的外表面能够与分支段13相贴合，进而使得分支管段300能够将所述分支段13进行定型并支撑起来。在其他的实施例中，所述分支管段300的形状根据分支段13的形状的变化进行适应性的调整，例如是椭圆形等。As shown in FIG. 2 and FIG. 7 , the branch pipe section 300 is adapted to the branch section 13 , the shape of the branch section 13 is cylindrical, the shape of the branch pipe section 300 is also cylindrical, and the shape of the branch pipe section 300 is also cylindrical. The diameter matches the inner diameter of the branch section 13 , for example, the outer surface of the branch pipe section 300 can fit with the branch section 13 , so that the branch pipe section 300 can shape and support the branch section 13 . In other embodiments, the shape of the branch pipe section 300 is adaptively adjusted according to the change of the shape of the branch section 13 , for example, an ellipse shape.

如图2所示，所述主管段100与所述至少两个分叉管段200的近端可拆卸地连接。每个所述分叉管段200的远端分别与一个所述分支管段300的近端可拆卸地连接，例如，覆膜管定型装置优选包括两个分叉管段200，则覆膜管定型装置也包括对应数量的分支管段300，即包括两个分支管段300。优选的，两个分支管段300包括第一分支管段301以及第二分支管段302，第一分支管段301与第一分叉管段201连接，第二分支管段302与第二分叉管段202连接。可理解的，所述分叉管段200朝向所述分叉覆膜管10的近端的一端与所述主管段100连接、朝向所述分叉覆膜管10的远端的一端与所述分支管段300连接。在其他实施例中，若分叉管段200的数量为若干个，则分支管段300的数量与之相同，并与分叉管段200对应的连接起来，进而可以使得每个分叉管段300的远端均可以与一个分支管段300连接。如此设置，使得所述覆膜管定型装置包括主管段100、分叉管段200以及分支管段300三个部分，三个部分可拆卸地连接，使得三个部分能够分别置入所述分叉覆膜管10中，并拼装在一起，进而使得覆膜管定型装置具有如下优点：As shown in FIG. 2 , the main pipe section 100 is detachably connected to the proximal ends of the at least two bifurcated pipe sections 200 . The distal end of each bifurcated tube section 200 is detachably connected to the proximal end of one of the branch tube sections 300 respectively. For example, the film-coated tube shaping device preferably includes two bifurcated tube sections 200, then the film-covered tube shaping device also A corresponding number of branch pipe sections 300 are included, that is, two branch pipe sections 300 are included. Preferably, the two branch pipe sections 300 include a first branch pipe section 301 and a second branch pipe section 302 , the first branch pipe section 301 is connected with the first branch pipe section 201 , and the second branch pipe section 302 is connected with the second branch pipe section 202 . Understandably, one end of the bifurcated tube section 200 toward the proximal end of the bifurcated coated tube 10 is connected to the main section 100 , and one end of the bifurcated tube section 200 toward the distal end of the bifurcated coated tube 10 is connected to the branch. Pipe section 300 is connected. In other embodiments, if the number of bifurcated pipe sections 200 is several, the number of branch pipe sections 300 is the same, and is connected with the bifurcated pipe sections 200 correspondingly, so that the distal end of each bifurcated pipe section 300 can be Both can be connected to one branch pipe section 300 . In this way, the film-coated tube sizing device includes three parts: the main pipe section 100 , the bifurcated pipe section 200 and the branch pipe section 300 , and the three parts are detachably connected, so that the three parts can be respectively placed in the bifurcated film The tube 10 is assembled together, so that the film-coated tube shaping device has the following advantages:

1)避免了将传统的一体式覆膜管定型装置整体从分叉覆膜管10的近端置入时，由于主体段11至分叉段12的结构发生变化，导致一体式覆膜管定型装置与分叉覆膜管10的结构不匹配的情况。本实施例提供的覆膜管定型装置在置入分叉覆膜管10时，可以将三个部分分别置入分叉覆膜管10的分支段13、分叉段12以及主体段11，使其不受分叉覆膜管10整体尺寸的限制，可以对分叉覆膜管10进行有效的定型，每个部分的尺寸能够相互匹配，降低分叉覆膜管10被撕裂的风险，降低了定型工序的难度，从而提高了分叉覆膜管10的合格率、降低生产损耗以及生产成本。1) It is avoided that when the traditional integral film-coated tube shaping device is inserted from the proximal end of the bifurcated film-coated tube 10, the structure of the main body section 11 to the bifurcated section 12 changes, resulting in the formation of the integral film-coated tube. A situation where the device does not match the structure of the bifurcated coated tube 10 . When the film-coated tube sizing device provided in this embodiment is inserted into the bifurcated film-coated tube 10, three parts can be inserted into the branch section 13, the bifurcated section 12, and the main section 11 of the bifurcated film-coated tube 10, respectively, so that the It is not limited by the overall size of the bifurcated film-coated tube 10, and can effectively shape the bifurcated film-coated tube 10, and the size of each part can be matched with each other, thereby reducing the risk of the bifurcated film-coated tube 10 being torn and reducing the risk of tearing. The difficulty of the shaping process is reduced, thereby improving the qualification rate of the bifurcated film-coated tube 10 and reducing the production loss and production cost.

2)由于分叉段12的底部中心点有编织工序留下的轻微孔洞，一体式覆膜管定型装置在置入分叉覆膜管10中时需要克服过大的摩擦力，导致分叉段12撕裂，本实施例提供的覆膜管定型装置，由于主管段100、分叉管段200以及分支管段300三个部分相互独立，其所受的力也相互独立；三个部分对主体段11、分叉段12以及分支段13施加的作用力也相互独立；操作者在对主管段100、分支管段300施加作用力时，其作用力不易直接作用至分叉管段300，进而不易波及分叉段12的底部中心点，降低分叉段12被撕裂的风险。2) Since there are slight holes left by the braiding process at the bottom center point of the bifurcated section 12, the one-piece film-coated tube shaping device needs to overcome excessive friction when it is placed in the bifurcated film-coated tube 10, resulting in the bifurcation section. 12. Tear, the film-coated pipe shaping device provided in this embodiment, because the main section 100, the branch pipe section 200 and the branch pipe section 300 are independent of each other, the forces they are subjected to are also independent of each other; The force exerted by the bifurcated section 12 and the branch section 13 is also independent of each other; when the operator exerts force on the main pipe section 100 and the branch pipe section 300, the force is not easy to directly act on the bifurcated pipe section 300, and thus is not easy to spread to the bifurcated section 12. the bottom center point, reducing the risk of the bifurcated section 12 being torn.

3)本实施例提供的覆膜管定型装置将三个部分分别置入分叉覆膜管10中，进行拼装即可，其设计简单、使用方便。3) In the film-coated tube shaping device provided in this embodiment, the three parts are respectively placed in the bifurcated film-coated tube 10 and assembled, which is simple in design and convenient in use.

进一步的，如图1所示，当分叉覆膜管10的分叉段12为变直径、或者两个以上的分支段13的径向尺寸之和大于主体段11的径向尺寸时，例如，分支段13的数量为两个，两个分支段13的径向尺寸之和大于主管段11的直径，传统的一体式覆膜管定型装置从分叉覆膜管10的近端置入并安装至分叉覆膜管10内的过程中，一体式覆膜管定型装置无法插入分叉覆膜管10内。因此，优选的，如图2所示，本实施例的所述覆膜管定型装置包括：两个所述分叉管段200以及两个所述分支管段300。所述分支管段300例如是一圆柱体，所述分叉管段200的远端的径向尺寸与所述分支管段300的近端的径向尺寸相同，两个所述分叉管段200的远端的径向尺寸之和大于所述主管段100的远端的径向尺寸，当在安装覆膜管定型装置时，将分支管段300、分叉管段200以及主管段100分别进行安装，在分叉管段200安装至主体段11并过渡至分叉段12时，改善了分支管段300、分叉管段200与分叉覆膜管10之间的摩擦力，防止分叉覆膜管10撕裂。优选的，每个分支管段300与分叉管段200的远端连接并与所述主管段100的轴线平行设置。两个分支管段300的尺寸和形状可以完全相同，例如两个分支管段300均为直径相同的圆柱形。在其他实施例中，两个分支管段300的尺寸和形状也可以不完全相同，例如，其中一个分支管段的直径大，另一个分支管段的直径小。需说明，所述分支管段300的长度需比分支段13的长度长10～40mm，具体可以是20mm左右，进而使得分支管段300与分支段13匹配时预留有一定的安全长度，保证全部的分支段13能够被分支管段300定型并支撑起来；分叉管段200的长度能够与分叉段12的长度完全一致，分叉管段200的轴线能够与分叉管12的轴线重合。Further, as shown in FIG. 1 , when the bifurcated section 12 of the bifurcated coated tube 10 is of variable diameter, or the sum of the radial dimensions of two or more branch sections 13 is greater than the radial dimension of the main section 11 , for example , the number of branch sections 13 is two, and the sum of the radial dimensions of the two branch sections 13 is greater than the diameter of the main section 11. During the process of being installed into the bifurcated film-coated tube 10 , the integral film-coated tube shaping device cannot be inserted into the bifurcated film-coated tube 10 . Therefore, preferably, as shown in FIG. 2 , the film-coated pipe shaping device in this embodiment includes: two branched pipe sections 200 and two branched pipe sections 300 . The branch pipe section 300 is, for example, a cylinder, the radial dimension of the distal end of the branch pipe section 200 is the same as the radial dimension of the proximal end of the branch pipe section 300 , and the distal ends of the two branch pipe sections 200 The sum of the radial dimensions is greater than the radial dimension of the distal end of the main pipe section 100. When installing the film-coated pipe sizing device, the branch pipe section 300, the bifurcated pipe section 200 and the main pipe section 100 are respectively installed. When the pipe section 200 is installed to the main body section 11 and transitions to the bifurcated section 12 , the friction between the branch pipe section 300 , the bifurcated pipe section 200 and the bifurcated film-coated pipe 10 is improved to prevent the bifurcated film-coated pipe 10 from tearing. Preferably, each branch pipe section 300 is connected to the distal end of the branch pipe section 200 and arranged parallel to the axis of the main pipe section 100 . The size and shape of the two branch pipe sections 300 may be exactly the same, for example, the two branch pipe sections 300 are cylindrical with the same diameter. In other embodiments, the sizes and shapes of the two branch pipe sections 300 may not be exactly the same. For example, one branch pipe section has a large diameter and the other branch pipe section has a small diameter. It should be noted that the length of the branch pipe section 300 needs to be 10-40 mm longer than the length of the branch section 13, specifically about 20 mm, so that a certain safety length is reserved when the branch pipe section 300 is matched with the branch section 13 to ensure that all the The branch section 13 can be shaped and supported by the branch pipe section 300 ; the length of the branch pipe section 200 can be exactly the same as the length of the branch pipe section 12 , and the axis of the branch pipe section 200 can coincide with the axis of the branch pipe 12 .

作为优选，如图5至图6，所述分叉管段200包括分叉端部210以及手柄220。所述分叉端部210用于与一分叉覆膜管10的分叉段12相适配，具体为，所述分叉端部210与分叉段12直接接触，起到定型的效果。结合图2所示，所述分叉端部210的远端与所述分支管段300的近端可拆卸地连接，所述分叉端部210的近端与所述手柄220的远端连接，所述手柄220的近端与所述主管段100可拆卸地连接。由于分叉段12较短，通常小于15mm，而主体段11较长，其长度大于140mm，将分叉端部210放入分叉段12时，需要采用一手柄220用于操作者在安装分叉管段200时，将所述分叉端部210从分叉覆膜管10近端置入至分叉段12。在安装完分叉管段200之后，需要将主管段100安装至主体段11中，为了避开所述手柄220的阻挡，如图3至图4所述，所述主管段100设有一与所述手柄220想匹配的手柄通孔110，所述手柄220设置在所述手柄通孔110内。所述手柄通孔110的结构与所述手柄220的结构相匹配。例如，进一步的，为了便于手柄220的加工以及操作者握持的手感，所述手柄220为圆柱体结构，所述手柄通孔110为圆柱体通孔，所述手柄通孔110的直径不小于所述手柄200的直径。进一步的，由于分叉管段200对称设置，分叉管段200的手柄220也对称设置且手柄220尺寸相同，则主管段100的手柄通孔110亦对称设置且尺寸相同。需说明，所述主管段100的长度需比主体段11的长度长20mm左右，进而使得主管段100与主体段11匹配时预留有一定的安全长度，保证全部的主体段11能够被主管段100定型并支撑起来。Preferably, as shown in FIGS. 5 to 6 , the bifurcated pipe section 200 includes a bifurcated end portion 210 and a handle 220 . The bifurcated end portion 210 is used for matching with the bifurcated section 12 of a bifurcated film-coated tube 10 , and specifically, the bifurcated end portion 210 is in direct contact with the bifurcated section 12 to achieve a shaping effect. Referring to FIG. 2 , the distal end of the bifurcated end portion 210 is detachably connected to the proximal end of the branch pipe section 300 , and the proximal end of the bifurcated end portion 210 is connected to the distal end of the handle 220 , The proximal end of the handle 220 is detachably connected to the main pipe section 100 . Since the bifurcated section 12 is relatively short, usually less than 15 mm, while the main body section 11 is relatively long and its length is greater than 140 mm, when placing the bifurcated end 210 into the bifurcated section 12, a handle 220 needs to be used for the operator to install the section. When bifurcating the tube section 200 , the bifurcated end portion 210 is inserted from the proximal end of the bifurcated coated tube 10 to the bifurcated section 12 . After the bifurcated pipe section 200 is installed, the main pipe section 100 needs to be installed into the main body section 11. In order to avoid the obstruction of the handle 220, as shown in FIG. 3 to FIG. 4, the main pipe section 100 is provided with a The handle 220 is to be matched with the handle through hole 110 , and the handle 220 is arranged in the handle through hole 110 . The structure of the handle through hole 110 matches the structure of the handle 220 . For example, further, in order to facilitate the processing of the handle 220 and the operator's grip, the handle 220 is a cylindrical structure, the handle through hole 110 is a cylindrical through hole, and the diameter of the handle through hole 110 is not smaller than The diameter of the handle 200. Further, since the bifurcated pipe section 200 is symmetrically arranged, the handles 220 of the bifurcated pipe section 200 are also symmetrically arranged and have the same size, the handle through holes 110 of the main pipe section 100 are also symmetrically arranged and have the same size. It should be noted that the length of the main section 100 needs to be about 20mm longer than the length of the main section 11, so that a certain safety length is reserved when the main section 100 is matched with the main section 11, so as to ensure that all main sections 11 can be replaced by the main section 11. 100 shape and hold up.

进一步的，如图5与图6所示，所述覆膜管定型装置包括两个所述分叉管段200，每个所述分叉管段200包括一个所述分叉端部210。两个所述分叉端部210的近端的径向尺寸之和与所述主管段100远端的径向尺寸相等，例如，两个所述分叉端部210的近端的直径是相等的，进而保证所述分叉端部200与所述主管段100之间的连接部位尺寸相同。所述分叉端部210的远端的径向尺寸大于所述分叉端部210的近端的径向尺寸，例如，所述分叉端部210例如是一斜圆锥柱体，分叉端部210的远端的直径大于所述分叉端部210的近端的直径，进而使得两个分叉端部200的远端的径向尺寸大于所述主管段100远端的尺寸。Further, as shown in FIG. 5 and FIG. 6 , the film-coated tube shaping device includes two bifurcated tube sections 200 , and each of the bifurcated tube sections 200 includes one of the bifurcated end portions 210 . The sum of the radial dimensions of the proximal ends of the two bifurcated ends 210 is equal to the radial dimension of the distal end of the main pipe section 100 , for example, the diameters of the proximal ends of the two bifurcated ends 210 are equal so as to ensure that the size of the connection portion between the bifurcated end portion 200 and the main pipe section 100 is the same. The radial dimension of the distal end of the bifurcated end portion 210 is larger than the radial dimension of the proximal end of the bifurcated end portion 210 , for example, the bifurcated end portion 210 is, for example, an oblique conical cylinder, The diameter of the distal end of the portion 210 is larger than the diameter of the proximal end of the bifurcated end portion 210 , so that the radial dimension of the distal end of the two bifurcated end portions 200 is larger than the dimension of the distal end of the main pipe section 100 .

进一步的，每个所述分叉端部210具有一轴线，两个所述分叉端部210的轴线之间的夹角为锐角，例如是10～45°，优选为15°。其中，两个分叉端部210的轴线之间的夹角可以根据实际行情况进行设定，本实施例在此不做限制。在其他实施例中，分叉端部210的远端的直径可以等于所述分叉端部210的近端的直径，每个所述分叉端部210的远端的直径与其对应的所述分支管段300的直径相同，当两个所述分叉端部210的轴线之间具有一定的夹角时，两个所述分叉端部210的远端的最大径向尺寸(即两个所述分叉端部210的远端之间间隔的距离与两个分叉端部210的直径之和)大于两个所述分叉端部210的近端的最大径向尺寸(即两个所述分叉端部210的近端之间间隔的距离与两个分叉端部210的直径之和)。如此，使得覆膜管定型装置能够与分叉段12位置处尺寸逐渐变大的覆膜相匹配，使得在安装覆膜管定型装置时，覆膜管定型装置的分支管段300从分支段13置入，进而避免分支管段300从主体段11安装时，分支管段300与分叉覆膜管10之间的摩擦、避免损坏分叉覆膜管10。Further, each of the bifurcated ends 210 has an axis, and the included angle between the axes of the two bifurcated ends 210 is an acute angle, for example, 10-45°, preferably 15°. Wherein, the included angle between the axes of the two bifurcated ends 210 may be set according to the actual situation, which is not limited in this embodiment. In other embodiments, the diameter of the distal end of the bifurcated ends 210 may be equal to the diameter of the proximal end of the bifurcated ends 210, and the diameter of the distal end of each of the bifurcated ends 210 and its corresponding The diameters of the branch pipe sections 300 are the same, and when there is a certain angle between the axes of the two bifurcated ends 210, the maximum radial dimension of the distal ends of the two bifurcated ends 210 (that is, the two The distance between the distal ends of the bifurcated ends 210 and the sum of the diameters of the two bifurcated ends 210) is greater than the maximum radial dimension of the proximal ends of the two bifurcated ends 210 (that is, the two The distance between the proximal ends of the bifurcated ends 210 and the sum of the diameters of the two bifurcated ends 210). In this way, the film-coated tube sizing device can be matched with the film whose size gradually increases at the position of the bifurcated section 12 , so that when the film-coated tube sizing device is installed, the branch pipe section 300 of the film-coated tube sizing device is set from the branch section 13 . Therefore, when the branch pipe section 300 is installed from the main body section 11 , friction between the branch pipe section 300 and the bifurcated film-coated pipe 10 is avoided, and damage to the bifurcated film-coated pipe 10 is avoided.

通常，如图2所示，在所述主管段100安装完成之后，操作者还会对所述分叉端部210的角度进行调节，以匹配分叉段12的角度，因此，手柄220可以在主管段100外部预留一定的长度，方便操作者调整手柄220的角度。作为优选，所述手柄220的远端突出于所述手柄通孔110之外，例如，分叉管段200与主管段100安装完成之后，手柄220的轴向长度比手柄通孔210的轴向长度多出40～50mm。同时，所述手柄通孔110的径向尺寸大于所述手柄200的径向尺寸，便于所述手柄200的转动。Usually, as shown in FIG. 2 , after the main pipe section 100 is installed, the operator will also adjust the angle of the bifurcated end 210 to match the angle of the bifurcated section 12, so the handle 220 can be A certain length is reserved outside the main pipe section 100 to facilitate the operator to adjust the angle of the handle 220 . Preferably, the distal end of the handle 220 protrudes out of the handle through hole 110 . For example, after the bifurcated pipe section 200 and the main pipe section 100 are installed, the axial length of the handle 220 is longer than the axial length of the handle through hole 210 40 ~ 50mm more. Meanwhile, the radial dimension of the handle through hole 110 is larger than the radial dimension of the handle 200 , which facilitates the rotation of the handle 200 .

如图5所示，由于在安装分叉端部210时，所述分叉端部210具有角度的限定，例如，如果分叉端部210的轴线与所述分叉段12的轴线有偏差，则会影响分叉覆膜管10的定型。因此，在安装时，需要对分叉端部210的角度进行调整，在一较佳的实施例中，所述手柄220的结构还可以为多边体，所述手柄220与所述分叉端部210固定连接，所述手柄220用于调整所述分叉端部210，以使得所述分叉端部210的轴线与所述分叉覆膜管10的分叉段12的轴线相重合。例如，所述手柄220为长方体，当所述长方体的某一个面朝向某一预定方向时(例如图5中，垂直朝向图外部一侧的方向为预定方向)，则可以表示分叉端部210的轴线与分叉段12的轴线重合。当然，所述多边体还可以是正方体、三角柱或者六面体等。需要说明的是，在安装分叉端部210时，由于所述分叉覆膜管10为透明的，因此操作者可以可视化的判断分叉段12、分叉端部210或者长方形手柄是否歪斜。As shown in FIG. 5 , since the bifurcated end portion 210 has a limited angle when the bifurcated end portion 210 is installed, for example, if the axis of the bifurcated end portion 210 is deviated from the axis of the bifurcated portion 12 , This will affect the shape of the bifurcated film-coated tube 10 . Therefore, during installation, the angle of the bifurcated end portion 210 needs to be adjusted. In a preferred embodiment, the structure of the handle 220 may also be a polygon, and the handle 220 and the bifurcated end portion 210 is fixedly connected, and the handle 220 is used to adjust the bifurcated end portion 210 so that the axis of the bifurcated end portion 210 coincides with the axis of the bifurcated section 12 of the bifurcated coated tube 10 . For example, the handle 220 is a rectangular parallelepiped. When a certain face of the rectangular parallelepiped faces a predetermined direction (for example, in FIG. 5 , the direction perpendicular to the outer side of the figure is a predetermined direction), the bifurcated end 210 can be represented. The axis coincides with the axis of the bifurcated section 12 . Of course, the polygon may also be a cube, a triangular prism, or a hexahedron, or the like. It should be noted that when installing the bifurcated end portion 210, since the bifurcated film-coated tube 10 is transparent, the operator can visually judge whether the bifurcated portion 12, the bifurcated end portion 210 or the rectangular handle is skewed.

进一步的，请继续参考图5，优选的，所述分叉管段200还包括定位体230，所述定位体230的两端分别与所述分叉端部210以及所述手柄220连接。优选的，所述连接方式为固定连接。所述定位体230与所述手柄220的轴线平行设置，所述定位体230用于调整所述分叉端部210，以使得所述分叉端部210的轴线与所述分叉覆膜管10的分叉段12的轴线相重合。可以理解的，当安装分叉管段200时，操作者手持手柄220，将所述分叉端部210从分叉覆膜管10的近端置入，并放置到分叉段12，在确定分叉端部210是否与分叉段12的位置相一致时，操作者可以从分叉覆膜管10外部观察定位体230的位置，判断分叉段12与分叉端部210的相对位置，并调节定位体230的朝向，以确保分叉端部210放置的角度与分叉段12的角度一致。Further, please continue to refer to FIG. 5 , preferably, the bifurcated pipe section 200 further includes a positioning body 230 , and two ends of the positioning body 230 are respectively connected to the bifurcated end portion 210 and the handle 220 . Preferably, the connection mode is fixed connection. The positioning body 230 is arranged parallel to the axis of the handle 220 , and the positioning body 230 is used to adjust the bifurcated end portion 210 so that the axis of the bifurcated end portion 210 is aligned with the bifurcated film-coated tube. The axes of the bifurcated sections 12 of 10 coincide. It can be understood that, when installing the bifurcated tube section 200, the operator holds the handle 220, inserts the bifurcated end 210 from the proximal end of the bifurcated coated tube 10, and places it on the bifurcated section 12, after determining the bifurcation When the position of the fork end 210 is consistent with the position of the bifurcated section 12, the operator can observe the position of the positioning body 230 from the outside of the bifurcated film-coated tube 10, determine the relative position of the bifurcated section 12 and the bifurcated end 210, and The orientation of the positioning body 230 is adjusted to ensure that the angle at which the bifurcated end 210 is placed is consistent with the angle of the bifurcated section 12 .

作为优选，如图5至图6所示，所述定位体230沿所述主管段轴向的横截面为多边形的杆件。在本实施例中，所述定位体230优选为长方体，所述长方体的一端与分叉端部210连接，另一端与手柄220连接，所述长方体的横截面例如是长方形，进而使得所述长方体具有两个相互平行的窄边231，以及两个相互平行的宽边232。具体实施时，操作者观察长方形的定位体的某一面是否朝向预设方向，例如操作者观察长方形的窄边231是否正对操作者，使得操作者只能看到一个窄边231，而看不到其余的三个面。若不是，则调节手柄220的朝向，确保定位体230的某一个面朝向预定方向，即确保操作者只能看到一个窄边231，其余三个面不可见，则表明分叉端部210的朝向正确，定位体230在分叉端部210放入分叉覆膜12的过程中起到定位作用，使得所述分叉管段200的角度更加精准。实际使用时，所述定位体230的长度大于为50mm。Preferably, as shown in FIG. 5 to FIG. 6 , the cross section of the positioning body 230 along the axial direction of the main pipe section is a polygonal rod. In this embodiment, the positioning body 230 is preferably a rectangular parallelepiped, one end of the rectangular parallelepiped is connected to the bifurcated end 210, and the other end is connected to the handle 220. The cross section of the rectangular parallelepiped is, for example, a rectangle, so that the There are two narrow sides 231 parallel to each other, and two broad sides 232 parallel to each other. During the specific implementation, the operator observes whether a certain side of the rectangular positioning body faces the preset direction, for example, the operator observes whether the narrow side 231 of the rectangle faces the operator, so that the operator can only see one narrow side 231, but not the narrow side 231. to the remaining three sides. If not, adjust the orientation of the handle 220 to ensure that a certain surface of the positioning body 230 faces the predetermined direction, that is, to ensure that the operator can only see one narrow side 231 and the other three surfaces are not visible, indicating that the fork end 210 is not visible. When the orientation is correct, the positioning body 230 plays a positioning role during the process of placing the bifurcated end 210 into the bifurcated film 12 , so that the angle of the bifurcated pipe section 200 is more accurate. In actual use, the length of the positioning body 230 is greater than 50 mm.

较佳的，所述定位体230为波浪轴杆或者折线轴杆。操作者通过所述波浪轴杆或者所述折线轴杆的轴线所在的面朝向某一预定方向，判断所述分叉管段200是否处于预定的角度。如此，设置有定位体230进行定位，则所述手柄220可以设置为圆柱形，避免操作者在持握多边体的手柄220时，多边体边缘的棱对操作者的手勒伤的情况发生。作为优选，所述定位体230与所述手柄220的长度之和大于所述手柄通孔220的长度，例如定位体230与手柄220的长度之比手柄通孔220的长度长40～50mm，其与如上所述的手柄220的长度大于手柄通孔310的意义相同，能够方便操作者调节分叉管段200的角度。Preferably, the positioning body 230 is a wave shaft or a broken line shaft. The operator judges whether the bifurcated pipe section 200 is at a predetermined angle by using the plane on which the axis of the wave shaft or the broken line shaft is facing a certain predetermined direction. In this way, if the positioning body 230 is provided for positioning, the handle 220 can be set in a cylindrical shape, so as to prevent the operator's hand from being strangled by the edges of the polygon when the operator holds the handle 220 of the polygon. Preferably, the sum of the lengths of the positioning body 230 and the handle 220 is greater than the length of the handle through hole 220 . For example, the length of the positioning body 230 and the handle 220 is 40-50 mm longer than the length of the handle through hole 220 . Similar to the above-mentioned meaning that the length of the handle 220 is greater than the handle through hole 310 , it is convenient for the operator to adjust the angle of the bifurcated pipe section 200 .

进一步的，所述定位体230的材料为不锈钢或尼龙。不锈钢材质的刚度较大，支撑力大，抵弯曲以及抗压强度高。例如，当长方体的定位体的尺寸较细(＜12mm)时，不锈钢材质能够抵抗尺寸较细时的弯曲力，进而避免定位体230尺寸过小可能导致弯曲或者断裂。较佳的，所述定位体230的径向尺寸不小于12mm时，即定位体的尺寸较粗(≥12mm)时，由于定位体230的径向尺寸大，尼龙材质可以抵抗压折力，所述定位体采用尼龙材质，则便于将定位体与分叉端部、手柄一体加工成型，进而节约加工成本。Further, the material of the positioning body 230 is stainless steel or nylon. The rigidity of stainless steel material is large, the support force is large, and the bending resistance and compressive strength are high. For example, when the size of the positioning body of the rectangular parallelepiped is relatively small (<12 mm), the stainless steel material can resist the bending force when the size is small, thereby preventing the positioning body 230 from being bent or broken due to the too small size. Preferably, when the radial size of the positioning body 230 is not less than 12 mm, that is, when the size of the positioning body is relatively thick (≥12 mm), since the radial size of the positioning body 230 is large, the nylon material can resist the bending force, so If the positioning body is made of nylon, it is convenient to integrally process the positioning body, the bifurcated end and the handle, thereby saving the processing cost.

较佳的，所述定位体230的径向尺寸小于所述主管段100的径向尺寸，进而使得所述定位体230能够设置于所述主管段100之内的手柄通孔110之中。Preferably, the radial dimension of the positioning body 230 is smaller than the radial dimension of the main pipe section 100 , so that the positioning body 230 can be disposed in the handle through hole 110 in the main pipe section 100 .

进一步的，所述覆膜管定型装置采用采用热膨胀系数大于60*10^-6m/mk的材料制成，具体的，所述主管段100、所述分支管段300、所述分叉管段200的分叉端部210或者所述分叉管段200的手柄220采用的材料的热膨胀系数大于60x 10^-6m/mk，例如，所述材料优选为尼龙，进而使得所述覆膜管定型装置在对分叉覆膜管10进行定形时，可以根据温度升高而发生热膨胀，相比于热膨胀系数较低的材料，其能够进一步将分叉覆膜管10支撑起来，避免分叉覆膜管10维持扁平状不能成型。其相比于传统的一体式覆膜管定型装置，采用的材料的热膨胀系数高，避免材质断裂以及变形，进而避免分叉覆膜管10的变形，提高分叉覆膜管10的成品率。更为优选的，所述材料为尼龙66。尼龙66与不锈钢材质在分叉覆膜管10的定型过程中没有任何的损耗和损害，覆膜管定型装置可以重复利用，降低分叉覆膜管10定型的成本。Further, the film-coated pipe shaping device is made of a material with a thermal expansion coefficient greater than 60*10 ^-6 m/mk. The thermal expansion coefficient of the material used for the bifurcated end 210 or the handle 220 of the bifurcated pipe section 200 is greater than 60×10 ⁻⁶ m/mk, for example, the material is preferably nylon, so that the film-coated pipe sizing device is suitable for When the bifurcated film-coated tube 10 is being shaped, thermal expansion may occur according to the increase in temperature. Compared with materials with a lower thermal expansion coefficient, it can further support the bifurcated film-coated tube 10 and avoid the maintenance of the bifurcated film-coated tube 10 . Flat shape cannot be formed. Compared with the traditional one-piece film-coated tube setting device, the material used has a high thermal expansion coefficient, which avoids material breakage and deformation, thereby avoiding deformation of the bifurcated film-coated pipe 10 and improving the yield of the bifurcated film-coated pipe 10 . More preferably, the material is nylon 66. Nylon 66 and stainless steel have no loss or damage during the shaping process of the bifurcated film-coated tube 10 , and the film-coated tube shaping device can be reused, thereby reducing the cost of shaping the bifurcated film-coated tube 10 .

进一步的，如图5至图8，所述分叉管段200与所述分支管段300之间通过一组连接部相连接，具体的，所述覆膜管型定型装置还包括第一连接部240和第二连接部310，所述第一连接部240设置于所述分叉管段200的远端，所述第二连接部310设置于所述分支管段300的近端；所述第一连接部240与所述第二连接部310相适配。优选的，所述第一连接部240与所述第二连接部310之一者包括一凹槽，所述第一连接部240与所述第二连接部310之另一者包括一凸起，所述凹槽与所述凸起相适配。例如，优选的，所述第一连接部240包括一凹槽，所述第二连接部310包括一凸起，所述凹槽与所述凸起相适配。更为具体的，所述凸起为圆柱形凸起结构，所述凹槽为呈圆柱形下凹的槽，圆柱形凸起结构的圆柱形的直径和高的尺寸与圆柱形下凹的槽的尺寸一致，进而使得分叉管段200与分支管段300的连接部能够相互匹配配的结合。在其他实施例中，本领域技术人员可以根据实际情况对所述凸起与凹槽的结构进行适应性的调整，所述凸起与凹槽还可以是正方形结构、长方形结构、椭圆形结构或者多边体结构等，所述凹槽以及所述凸起的数量不予限定，可以是一个，也可以是多个。所述第一连接部240与所述第二连接部310还可以是磁铁组件，所述磁铁组件中的一个设置于所述第一连接部240，所述磁铁组件的另一个设置于所述第二连接部310。所述第一连接部240与第二连接部310还可以是凹槽凸起结构与磁铁组件的组合，比如，凹槽的一端设置一磁铁组件中的一个磁件，凸起的一端设置一磁铁组件中的另一磁件，进而使得连接部连接的更加紧密。Further, as shown in FIG. 5 to FIG. 8 , the bifurcated pipe section 200 and the branch pipe section 300 are connected by a set of connecting parts. Specifically, the film-coated tube shaping device further includes a first connecting part 240 and a second connecting portion 310, the first connecting portion 240 is disposed at the distal end of the bifurcated pipe section 200, and the second connecting portion 310 is disposed at the proximal end of the branching pipe section 300; the first connecting portion 240 is adapted to the second connecting portion 310 . Preferably, one of the first connecting portion 240 and the second connecting portion 310 includes a groove, and the other one of the first connecting portion 240 and the second connecting portion 310 includes a protrusion, The grooves are adapted to the protrusions. For example, preferably, the first connecting portion 240 includes a groove, the second connecting portion 310 includes a protrusion, and the groove is adapted to the protrusion. More specifically, the protrusion is a cylindrical convex structure, the groove is a cylindrical concave groove, and the cylindrical diameter and height of the cylindrical convex structure are the same as the cylindrical concave groove. The sizes of the forked pipe sections 200 and the branch pipe sections 300 can be matched and combined with each other. In other embodiments, those skilled in the art can make adaptive adjustments to the structures of the protrusions and grooves according to the actual situation, and the protrusions and grooves can also be a square structure, a rectangular structure, an oval structure or Polygonal structures, etc., the number of the grooves and the protrusions is not limited, and there may be one or more than one. The first connecting portion 240 and the second connecting portion 310 may also be magnet assemblies, one of the magnet assemblies is disposed on the first connecting portion 240 , and the other magnet assembly is disposed on the first connecting portion 240 . Two connecting parts 310 . The first connecting portion 240 and the second connecting portion 310 may also be a combination of a groove-protruding structure and a magnet assembly. For example, one end of the groove is provided with a magnetic piece in the magnet assembly, and one end of the protrusion is provided with a magnet. Another magnetic piece in the assembly, thereby making the connection parts more tightly connected.

本实施例还提供一种覆膜管的定型方法，用于分叉覆膜管10的定型，所述分叉覆膜管10包括相连的主体段11、至少两个分叉段12以及至少两个分支段13。结合图1至图9所示，所述覆膜管的定型方法采用如上所述的覆膜管定型装置实现，所述覆膜管的定型方法包括：This embodiment also provides a method for shaping a film-coated tube, which is used for shaping a bifurcated film-coated tube 10. The bifurcated film-coated tube 10 includes a connected main body section 11, at least two bifurcated sections 12, and at least two A branch segment 13. With reference to Figures 1 to 9, the shaping method of the film-coated tube is realized by the above-mentioned shaping device for the coating-coated tube, and the shaping method of the film-coated tube includes:

S1：将每个所述分支管段300分别从所述分叉覆膜管10的远端置入到一个所述分支段13中。具体的，分支管段300优选包括第一分支管段301以及第二分支管段302。优选将所述第一分支管段301、第二分支管段302分别从分叉覆膜管10的不同的分支段13的远端置入。分支管段300优选包括第二连接部310，将所述第二连接部310朝向分叉覆膜管10近端。S1: Insert each branch tube section 300 into one of the branch sections 13 from the distal end of the bifurcated coated tube 10 respectively. Specifically, the branch pipe section 300 preferably includes a first branch pipe section 301 and a second branch pipe section 302 . Preferably, the first branch pipe section 301 and the second branch pipe section 302 are respectively inserted from the distal ends of different branch sections 13 of the bifurcated coated tube 10 . The branch pipe section 300 preferably includes a second connecting portion 310 that is directed toward the proximal end of the bifurcated covered tube 10 .

S2：将每个所述分叉管段200分别从所述分叉覆膜管10的近端置入到一个所述分叉段12中。在本实施例中，所述分叉管段200优选包括第一分叉管段201以及第二分叉管段202。较佳的，将第一分叉管段201与第二分叉管段202分别从分叉覆膜管10的近端置入至不同的分叉段12，使得第一分叉管段201能够与第一分支管段301连接、第二分叉管段202能够与第二分支管段301连接。S2: Insert each of the bifurcated tube sections 200 into one of the bifurcated sections 12 from the proximal end of the bifurcated film-coated tube 10, respectively. In this embodiment, the bifurcated pipe section 200 preferably includes a first bifurcated pipe section 201 and a second bifurcated pipe section 202 . Preferably, the first bifurcated tube section 201 and the second bifurcated tube section 202 are respectively inserted into different bifurcated sections 12 from the proximal end of the bifurcated coated tube 10, so that the first bifurcated tube section 201 can be connected with the first bifurcated tube section 201. The branch pipe section 301 is connected, and the second branch pipe section 202 can be connected to the second branch pipe section 301 .

在本实施例中，所述分叉管段200优选包括分叉端部210、手柄220以及定位体230，所述定位体230的两端分别与所述分叉端部210以及所述手柄220连接。优选的，在“所述S3将每个所述分叉管段200的远端分别与一个所述分支管段300的近端可拆卸地连接”的步骤之前，调整至少两个所述分叉管段200的定位体230的朝向，使得所述分叉端部210与所述分叉段12相适配。具体的，在安装分叉管段200时，操作者先握住第一分叉管段201的手柄220，将分叉端部210放入分叉段12的位置(其中放入分叉段12的位置表示分叉管段201与分叉段12接近重合并没有完全重合)，并保持第一分叉管段201的位置和方向不变动；再握住第二分叉管段202的手柄220，同样的将分叉端部210放入另一个分叉段12的位置(其中放入另一个分叉段12的位置表示分叉管段201与分叉段12接近重合并没有完全重合)；然后观察定位体230的方向，判断两个分叉端部210放置的位置以及角度是否能够与分叉段12完全重合，包括是否歪斜或者平齐、是否对称等等，并调整定位体230朝向预定的方向，使得分叉端部210与所述分叉段12相适配，具体调整方式可参考如上文所述的定位长方体230的调整方式，此处不再赘述；最后将第一分叉管段201以及第二分叉管段202同时推挤入分叉段12，将分叉管段201的第一连接部240与分支管段300的第二连接部310连接契合，使得分叉管段201与分支管段300交界处平滑、无缝隙。在其他实施例中，所述分叉管段200包括分叉端部210以及手柄220，所述手柄220用于定位所述分叉端部210的位置，则操作者需要调整至少两个所述分叉管段200的手柄220的朝向，使得与所述手柄220连接的所述分叉管段200的分叉端部210与所述分叉覆膜管10的分叉段12相适配。In this embodiment, the bifurcated pipe section 200 preferably includes a bifurcated end portion 210 , a handle 220 and a positioning body 230 , and two ends of the positioning body 230 are respectively connected to the bifurcated end portion 210 and the handle 220 . . Preferably, before the step of "S3 detachably connecting the distal end of each of the bifurcated pipe sections 200 to the proximal end of one of the branch pipe sections 300 respectively", at least two of the bifurcated pipe sections 200 are adjusted The orientation of the positioning body 230 is such that the bifurcated end portion 210 is adapted to the bifurcated section 12 . Specifically, when installing the bifurcated pipe section 200, the operator first holds the handle 220 of the first bifurcated pipe section 201, and puts the bifurcated end 210 into the position of the bifurcated section 12 (wherein the position of the bifurcated section 12 is placed). Indicates that the bifurcated pipe section 201 and the bifurcated section 12 are close to but not completely coincident), and keep the position and direction of the first bifurcated pipe section 201 unchanged; then hold the handle 220 of the second bifurcated pipe section 202, and the same will The position where the fork end 210 is placed in another bifurcated section 12 (wherein the position where the other bifurcated section 12 is placed indicates that the bifurcated pipe section 201 and the bifurcated section 12 are nearly coincident and not completely coincident); then observe the position of the positioning body 230 Determine whether the position and angle of the two bifurcated ends 210 can be completely coincident with the bifurcated segment 12, including whether it is skewed or flush, whether it is symmetrical, etc., and adjust the positioning body 230 to face a predetermined direction, so that the bifurcation The end portion 210 is adapted to the bifurcated section 12 . For the specific adjustment method, please refer to the adjustment method of the positioning cuboid 230 as described above, which will not be repeated here. Finally, the first bifurcated pipe section 201 and the second bifurcation The pipe section 202 is pushed into the bifurcated section 12 at the same time, and the first connection part 240 of the bifurcated pipe section 201 is connected and fitted with the second connection part 310 of the branch pipe section 300, so that the intersection of the bifurcated pipe section 201 and the branch pipe section 300 is smooth and seamless . In other embodiments, the bifurcated pipe section 200 includes a bifurcated end portion 210 and a handle 220. The handle 220 is used to locate the position of the bifurcated end portion 210, and the operator needs to adjust at least two of the bifurcated end portions 210. The orientation of the handle 220 of the bifurcated pipe section 200 is such that the bifurcated end 210 of the bifurcated pipe section 200 connected with the handle 220 is adapted to the bifurcated section 12 of the bifurcated film-coated pipe 10 .

S3：将每个所述分叉管段200的远端分别与一个所述分支管段300的近端可拆卸地连接。具体的，所述分支管段300优选包括第二连接部310。操作者将分叉管段200的第一连接部240与第二连接部310可拆卸地连接起来。S3: Removably connect the distal end of each of the bifurcated tube sections 200 to the proximal end of one of the branched tube sections 300 respectively. Specifically, the branch pipe section 300 preferably includes a second connecting portion 310 . The operator detachably connects the first connection portion 240 and the second connection portion 310 of the bifurcated pipe section 200 .

S4：将所述主管段100从所述分叉覆膜管10的近端置入到所述主体段11中，并与所述至少两个分叉管段200的近端可拆卸地连接。由于分叉管段200安装完成之后，手柄220停留在主体段11的位置，影响了主管段100的安装，故所述主管段100优选设置有手柄通孔110，在分支管段300以及分叉管段200安装完成之后，将主管段100穿设于手柄220之上，进而完成主管段100的安装。S4: Insert the main pipe section 100 into the main body section 11 from the proximal end of the bifurcated film-coated pipe 10 , and detachably connect with the proximal ends of the at least two bifurcated pipe sections 200 . Since the handle 220 stays at the position of the main body section 11 after the installation of the branch pipe section 200 is completed, which affects the installation of the main pipe section 100, the main pipe section 100 is preferably provided with a handle through hole 110, and the branch pipe section 300 and the branch pipe section 200 After the installation is completed, the main pipe section 100 is passed on the handle 220 to complete the installation of the main pipe section 100 .

之后，操作者优选可以将所述分支管段300、所述分叉管段200以及所述主管段100之间卡紧固定。具体的，操作者可以先将覆膜管定型装置立起来，即主管段100朝向底面或者桌面、分支管段300朝向反方向，方便操作者施加力；再对分支管段300施加朝向分叉管段200的推力，以确保分支管段300、分叉管段200的连接部无缝、紧密；再一手持握住伸出主管段100之外的手柄220，一手对主管段100的近端施加推力，主管段100与分叉管段200之间具有一定的挤压力，以确保主管段100与分叉管段200之前的连接无缝、紧密。此时，覆膜管定型装置可以将分叉覆膜管10的内部撑开，覆膜管定型装置安装完成。需理解，操作者可以通过人工操作完成紧固，也可以辅助拧紧工具，例如钳子等进行紧固。After that, the operator can preferably clamp and fix the branch pipe section 300 , the branch pipe section 200 and the main pipe section 100 . Specifically, the operator can first stand up the film-coated tube shaping device, that is, the main pipe section 100 faces the bottom surface or the desktop, and the branch pipe section 300 faces the opposite direction, so as to facilitate the operator to apply force; Push force to ensure seamless and tight connection between the branch pipe section 300 and the branch pipe section 200; hold the handle 220 extending out of the main pipe section 100 with one hand, and apply a thrust to the proximal end of the main pipe section 100 with the other hand, the main pipe section 100 There is a certain pressing force between the main pipe section 100 and the bifurcated pipe section 200 to ensure seamless and tight connection between the main pipe section 100 and the bifurcated pipe section 200 . At this time, the film-coated tube sizing device can open the inside of the bifurcated film-coated tube 10, and the installation of the film-coated tube sizing device is completed. It should be understood that the operator can complete the tightening by manual operation, and can also assist with tightening tools, such as pliers, to perform the tightening.

本实施例还提供一种覆膜支架的制备方法，包括：利用如上所述的覆膜管定型装置对分叉覆膜管10进行定型；将定型之后的分叉覆膜管10与支架进行缝合形成覆膜支架。所述覆膜支架的制备方法具备所述覆膜管定型装置所带来的有益效果，此处不再赘述。覆膜支架的制备方法所采用的缝合技术方案和原理，可参考现有技术，此处不再展开说明。The present embodiment also provides a method for preparing a covered stent, comprising: shaping the bifurcated covered tube 10 by using the shaping device for covered covered tube; suturing the shaped bifurcated covered tube 10 and the stent A stent-graft is formed. The preparation method of the covered stent has the beneficial effects brought about by the covered tube shaping device, which will not be repeated here. For the suture technical scheme and principle used in the preparation method of the stent-graft, reference may be made to the prior art, which will not be described here.

在本发明提供的一种覆膜管定型装置及定型方法、覆膜支架的制备方法中，所述覆膜管定型装置包括主管段、至少两个分叉管段以及至少两个分支管段；所述主管段与至少两个所述分叉管段的近端可拆卸地连接；每个所述分叉管段的远端分别与一个所述分支管段的近端可拆卸地连接。如此设置，使得所述覆膜管定型装置包括主管段、分叉管段以及分支管段三个部分，三个部分能够分别置入分叉覆膜管的主体段、分叉段以及分支段，每个部分能够分别与分叉覆膜管的各个部分相互适配，进而降低分叉覆膜管在定型过程中被撕裂的风险，提高定型后的分叉覆膜管的合格率，降低了定型工序的难度，降低生产损耗以及生产成本。In a film-covered tube shaping device and shaping method, and a method for preparing a covered stent provided by the present invention, the film-covered tube shaping device includes a main pipe section, at least two bifurcated pipe sections and at least two branch pipe sections; the The main pipe section is detachably connected with the proximal ends of at least two of the bifurcated pipe sections; the distal end of each of the bifurcated pipe sections is detachably connected with the proximal end of one of the branch pipe sections, respectively. In this way, the film-coated tube sizing device includes three parts: a main pipe section, a bifurcated pipe section and a branch pipe section. Parts can be adapted to each part of the bifurcated film-coated tube, thereby reducing the risk of the bifurcated film-coated tube being torn during the shaping process, improving the qualification rate of the bifurcated coating tube after shaping, and reducing the shaping process. The difficulty of reducing production loss and production cost.

上述描述仅是对本发明较佳实施例的描述，并非对本发明范围的任何限定，本发明领域的普通技术人员根据上述揭示内容做的任何变更、修饰，均属于权利要求书的保护范围。The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosure all belong to the protection scope of the claims.