Split-combination intraluminal repair device

Abstract

The present application relates to the technical field of implantable devices for use in patients, in particular to a split combined intraluminal repair instrument. The split combined intraluminal repair instrument comprises a support type split body and a compliant type split body. The support type split body comprises a plurality of support type ring units, the support type ring units are in a first wave shape, and the peaks and valleys of the first wave shape are in a bent shape. The compliant type split body comprises a plurality of compliant type ring units, the compliant type ring units are in a second wave shape, and the peaks and valleys of the second wave shape are in a smooth shape. Along the extension direction of the secondary artery, the plurality of support type ring units are sequentially fixedly connected to form the support type split body. Along the extension direction of the secondary artery, the plurality of compliant type ring units are sequentially fixedly connected to form the compliant type split body. The split combined intraluminal repair instrument increases the radial support force of the support type split body and increases the compliance of the compliant type split body, and the support type split body and the compliant type split body are used according to the situation.

Description

Technical Field

[0001] This invention relates to the field of implantable devices for use in patients, and more particularly to a modular intracavitary repair device. Background Technology

[0002] Although people's living standards are constantly improving, peripheral vascular diseases are increasing, such as primary lesions like spontaneous solitary superior mesenteric artery dissection, and dissection lesions in tissue areas that do not involve the aorta.

[0003] In the treatment of peripheral artery disease, endovascular repair surgery is required, but currently there is no stent specifically designed for these unique peripheral artery locations. Taking spontaneous solitary superior mesenteric artery dissection as an example, as a rare clinical condition, the primary treatment is endovascular repair surgery, but there is no specific stent for the superior mesenteric artery. Clinically, other peripheral vascular stents are usually selected based on the diameter of the superior mesenteric artery for related treatment, but this approach still has some problems:

[0004] (1) Peripheral vascular stents used for mesenteric treatment include bare stents and covered stents. Using bare stents may result in incomplete sealing of the rupture, while using covered stents may block branch arteries, thereby causing ischemia of paravascular branches.

[0005] (2) When using other peripheral vascular stents to treat superior mesenteric artery dissection, the mesentery itself is very important and has special proximal curvature, which can easily lead to complications such as incomplete stent release, displacement and detachment and vascular rupture.

[0006] (3) Spontaneous isolated superior mesenteric artery dissection has a wide variety of causes, mechanisms and clinical types, with multiple different subtypes. Different subtypes correspond to different treatment plans, requiring stent segmentation occlusion and support at different locations, which also puts forward new requirements for stents in the superior mesenteric artery.

[0007] Therefore, there is an urgent need to develop a modular endovascular repair device to meet the requirements of endovascular repair treatment for grade II arterial dissection. Summary of the Invention

[0008] The purpose of this invention is to provide a modular endovascular repair device to meet the requirements of endovascular repair treatment for grade II arterial dissection.

[0009] To achieve the above objectives, the present invention provides the following technical solutions;

[0010] Based on the aforementioned first objective, the present invention provides a modular intracavitary repair device, comprising a support-type split body and a compliant split body. The support-type split body includes multiple support-type annular units, each of which is in the shape of a first wave, and the peaks and troughs of the first wave are bent.

[0011] The compliant split includes multiple compliant ring units, each compliant ring unit having a second wave shape, and the peaks and troughs of the second wave shape having a smooth shape.

[0012] Along the extension direction of the secondary artery, multiple supporting annular units are sequentially fixedly connected to form the supporting split body;

[0013] Along the extension direction of the secondary artery, multiple compliant annular units are sequentially fixedly connected to form the compliant split body.

[0014] In any of the above technical solutions, optionally, the supporting ring unit is formed by a plurality of herringbone-shaped units connected sequentially along the circumference of the split-type combined intracavitary repair instrument;

[0015] The compliant annular unit is formed by a plurality of sinusoidal single units connected sequentially along the circumference of the modular intracavitary repair device.

[0016] In any of the above technical solutions, optionally, the herringbone-shaped unit includes a first part and a second part that are arranged at intersections. The first part and the second part each include a first segment and a second segment connected to the first segment. The first segment of the first part and the first segment of the second part are connected and form a first angle. The range of the first angle is 25°-35°.

[0017] Wherein, the imaginary extension line of the second segment of the first part and the imaginary extension line of the second segment of the second part form a second included angle, the range of the second included angle being 50°-70°.

[0018] In any of the above technical solutions, optionally, along the circumference of the split-type combined intracavitary repair device, two adjacent support-type annular units are staggered from each other, such that the corresponding peaks of the first wave-shaped structure of the two adjacent support-type annular units are staggered from each other and the corresponding troughs of the first wave-shaped structure are staggered from each other.

[0019] Along the circumference of the split-type endovascular repair device, two adjacent compliant annular units are staggered from each other, such that the corresponding peaks of the second wave-shaped second wave of the two adjacent compliant annular units are staggered from each other and the corresponding troughs of the second wave-shaped second wave are staggered from each other.

[0020] In any of the above technical solutions, optionally, for two adjacent support ring units, the first wave-shaped trough of one support ring unit is connected to the corresponding first wave-shaped peak of the other support ring unit to form a first connection point, and at least three first wave-shaped troughs are arranged between the two first connection points.

[0021] For two adjacent compliant ring units, the second wave-shaped trough of one compliant ring unit is connected to the corresponding second wave-shaped peak of the other compliant ring unit to form a second connection point (not shown in the figure), and at least four second wave-shaped troughs are arranged between the two second connection points.

[0022] In any of the above technical solutions, optionally, the compliant segment further includes a plurality of linear connecting segments, each of the connecting segments connecting the plurality of compliant ring units of the compliant segment in such a way that the second wave-shaped trough of one of the compliant ring units is connected to the second wave-shaped peak of the other of any two adjacent compliant ring units.

[0023] In any of the above technical solutions, optionally, the diameters of the plurality of supporting components and the plurality of compliant components are all equal;

[0024] Alternatively, at least any two of the plurality of supporting components and the plurality of compliant components may have unequal diameters.

[0025] Optionally, in any of the above technical solutions, the modular intracavitary repair device further includes a flexible polymer connector; wherein the flexible polymer connector is used to connect two adjacent support-type parts, or the flexible polymer connector is used to connect two adjacent compliant parts, or the flexible polymer connector is used to connect two adjacent support-type parts and the compliant parts.

[0026] In any of the above technical solutions, optionally, along the extension direction of the secondary artery, the buckle is used to connect two adjacent support-type parts, or the buckle is used to connect two adjacent compliant parts, or the buckle is used to connect two adjacent support-type parts and the compliant parts.

[0027] The beneficial effects of the present invention by adopting the above technical solution are as follows:

[0028] The present invention provides a modular endovascular repair device comprising a supporting component and a compliant component. The supporting component primarily increases radial support, while the compliant component primarily increases flexibility. In specific operations, the supporting and compliant components are used in combination depending on the stent release area and purpose, thereby constructing a modular endovascular repair device suitable for the patient. This modular endovascular repair device provides sufficient support for the secondary artery while exhibiting extremely high flexibility, enabling it to accommodate different treatment plans, improving the flexibility of intraoperative operations, and avoiding the use of other peripheral arterial stents in the secondary artery. It provides a dedicated treatment stent or endovascular repair device for the secondary artery, avoiding situations such as incomplete closure of ruptures and rupture of the secondary artery. Furthermore, it eliminates the need for endovascular grafting, preventing branch artery blockage. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the supporting component of the modular intracavitary repair device provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the compliant split structure of the modular intracavitary repair device provided in an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structure of the equal-diameter, split-type combined intracavitary repair instrument provided in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of a variable-diameter, modular, endocavitary repair device provided in an embodiment of the present invention.

[0034] Icons: 1-Supporting split; 10-Supporting ring unit; 11-Herringbone single unit; 110-First division; 111-First segment of the first division; 112-Second segment of the first division; 113-Second division; 114-First segment of the second division; 115-Second segment of the second division; 12-First connection point; 2-Compliant split; 20-Compliant ring unit; 21-Sine curve single unit; 22-Connecting split; 3-Secondary artery. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example

[0039] See Figures 1 to 4 As shown, this embodiment provides a modular intracavitary repair device; Figure 1 This is a schematic diagram of the supporting component of the modular endovascular repair device provided in this embodiment; specifically, it is a side view of the supporting component. Figure 2 This is a schematic diagram of the compliant modular endovascular repair instrument provided in this embodiment; specifically, it is a side view of the compliant modular component. Figure 3 This embodiment provides a modular, equal-diameter endocavitary repair device. Figure 4 This embodiment provides a variable-diameter, modular, endocavitary repair device.

[0040] The modular endovascular repair device provided in this embodiment is used for the treatment of secondary arteries. Generally, primary arteries refer to arteries that originate directly from the heart, while secondary arteries refer to arteries that originate from primary arteries, such as the superior mesenteric artery or the inferior mesenteric artery.

[0041] See Figures 1 to 4As shown, a modular endovascular repair device includes a supportive component 1 and a compliant component 2.

[0042] The supporting sub-body 1 includes multiple supporting ring units 10. The supporting ring units 10 are in the shape of a first wave, and the peaks and troughs of the first wave are bent, that is, the slope of the peaks and troughs of the first wave changes abruptly. In other words, the peaks or troughs of the first wave are angular.

[0043] The compliant split 2 includes multiple compliant ring units 20. The compliant ring units 20 are in the shape of a second wave, and the peaks and troughs of the second wave are smooth. That is, the peaks and troughs of the second wave are smooth curves that turn without presenting sharp angles.

[0044] Along the extension direction of the secondary artery 3, multiple supporting annular units 10 are sequentially fixedly connected to form a supporting split 1; the supporting split 1 has good radial support performance, which is beneficial to improving the support and fixation effect of the secondary artery 3.

[0045] Along the extension direction of the secondary artery 3, multiple compliant annular units 20 are sequentially fixedly connected to form a compliant split 2. The compliant split 2 has good flexibility, that is, it has a larger bendable angle relative to the supporting annular unit 10.

[0046] Optionally, the distance between two adjacent supporting ring units 10 along the extension direction of the secondary artery 3 is the first distance, and the distance between two adjacent compliant ring units 20 along the extension direction of the secondary artery 3 is the second distance. The first distance is not greater than 1 mm, and the second distance is not less than 2 mm.

[0047] Taking the treatment of superior mesenteric artery dissection as an example, the unique angle of the mesentery itself needs to be considered in specific operations, namely, the possibility of large-angle bends. Sufficient support is provided by placing the supporting component 1 at the proximal and distal portions of the superior mesenteric artery, i.e., at the entrance and exit points of the corresponding tear in the superior mesenteric artery, to ensure reliable fixation. Furthermore, the compliant component 2 is placed at the large-angle bend of the superior mesenteric artery to maximize vascular protection. Superior mesenteric artery dissection is a rare clinical disease with multiple subtypes, including Type I, Type II, and Type III, each corresponding to a specific treatment plan. This means that the support position and segmented occlusion method of the modular endovascular repair device differ. This modular endovascular repair device, through the combined use of the supporting component 1 and the compliant component 2, can address a wide variety of treatment options.

[0048] The modular endovascular repair device in this embodiment includes a supporting component 1 and a compliant component 2. The supporting component 1 primarily increases radial support, while the compliant component 2 primarily increases flexibility. In specific operations, the supporting component 1 and the compliant component 2 are used in combination depending on the stent release area and purpose, thus constructing a modular endovascular repair device suitable for the patient. This modular endovascular repair device provides sufficient support for the secondary artery 3 while exhibiting extremely high flexibility, adapting to different treatment plans, improving the flexibility of intraoperative operations, and avoiding the use of other peripheral arterial stents in the secondary artery 3. It provides a dedicated treatment stent or endovascular repair device for the secondary artery 3, preventing situations such as incomplete closure of the rupture and rupture of the secondary artery 3. Furthermore, it eliminates the need for endovascular grafting, avoiding the possibility of branch artery blockage.

[0049] In an optional embodiment, the supporting ring unit 10 is formed by a plurality of herringbone-shaped units 11 connected sequentially along the circumference of the split-type combined intracavitary repair instrument. The herringbone-shaped units 11 include a first distribution and a second distribution arranged in a cross pattern. Optionally, the first distribution and the second distribution can be straight lines, or the first distribution and the second distribution can be curves with a certain fluctuation amplitude along a straight line.

[0050] The compliant annular unit 20 is formed by a plurality of sinusoidal single units 21 connected sequentially along the circumference of the split-type endovascular repair instrument. The shape of the sinusoidal single unit can be a standard sinusoidal curve or a sinusoidal curve that is close to the standard.

[0051] By composing the supporting ring unit into multiple herringbone-shaped units 11, the crests and troughs of the first wave can be bent into a folded shape, ensuring the supporting effect of the supporting split 1. By composing the compliant ring unit 20 into multiple sinusoidal units 21, the crests and troughs of the second wave can be made smooth, ensuring the bendability of the compliant split 2. Furthermore, since the herringbone-shaped units 11 and sinusoidal units 21 have simple structures, they are easy to manufacture and have strong practicality.

[0052] Optionally, the sinusoidal monomer 21 of the compliant ring unit 20 has a period length of 5, and the supporting ring unit includes 20 herringbone monomers 11.

[0053] Optionally, the angle between the peak and trough of the sinusoidal single-cell 21 is 120°, and the pulse height of the sinusoidal single-cell 21 ranges from 2mm to 8mm. Specifically, the pulse height of the sinusoidal single-cell 21 is 4mm.

[0054] Optionally, the pulse height of the herringbone monomer 11 ranges from 2mm to 8mm, specifically, the pulse height of the herringbone monomer 11 is 4mm.

[0055] See Figure 1 As shown, in the optional scheme of this embodiment, the herringbone unit 11 includes a first part 110 and a second part 113 arranged in an intersecting manner. Both the first part 110 and the second part 113 include a first segment and a second segment connected to the first segment. The first segment 111 of the first part is connected to the first segment 114 of the second part and forms a first angle. The range of the first angle is 25°-35°, that is, the angle between the fitting line of the first segment 111 of the first part and the fitting line of the first segment 114 of the second part is the first angle.

[0056] Preferably, the range of the first included angle is 29°-31°. The value of the first included angle is, for example, 25°, 27°, 29°, 30°, 33° or 35°.

[0057] In this design, a second angle is formed between the imaginary extension line of the second segment 112 of the first part and the imaginary extension line of the second segment 115 of the second part. The range of the second angle is 50°-70°, that is, the angle between the extension line of the fitted straight line of the second segment 112 of the first part and the extension line of the fitted straight line of the second segment 115 of the second part is the second angle. By simultaneously limiting the angles of the first angle and the second angle, the length of the supporting ring unit 10 along the extension direction of the secondary artery 3 and the number of first wave undulations can be changed by changing the range of change between the first angle and the second angle. When the range of change is small, the number of first wave undulations of the supporting ring unit 10 is large, and the supporting performance is better. When the range of change is large, the number of first wave undulations of the supporting ring unit 10 is small, and the supporting performance is correspondingly weakened, while the compliance performance is correspondingly increased. Therefore, it is necessary to avoid the range of change being too small, so as to avoid the supporting segment 1 from collapsing and deforming.

[0058] Preferably, the range of the second included angle is 58°-62°. The value of the second included angle is, for example, 50°, 52°, 55°, 60°, 62°, 66° or 70°.

[0059] Optionally, the first segment 111 of the first part, the second segment 112 of the first part, the first segment 114 of the second part, and the second segment 115 of the second part may be straight or approximately straight arcs.

[0060] In the optional solutions of this embodiment, see Figure 1 and Figure 2As shown, along the circumference of the split-type combined endovascular repair device, two adjacent support-type annular units 10 are staggered from each other, so that the corresponding peaks and troughs of the first wave-shaped structure of the two adjacent support-type annular units 10 are staggered from each other. This avoids the alignment of the corresponding peaks or troughs of the first wave-shaped structure of the two adjacent support-type annular units 10, thereby preventing positional interference at the corresponding peaks and troughs when the support-type annular unit 10 bends to a certain extent, which would lead to deformation and thus ensure the compliance of the support-type annular unit 10 with respect to the secondary artery 3, and avoid damage to the inner wall of the secondary artery 3 due to the expansion of the support-type annular unit 10.

[0061] Along the circumference of the modular endovascular repair device, two adjacent compliant annular units 20 are staggered from each other, so that the corresponding peaks and troughs of the second wave-shaped second wave of the two adjacent compliant annular units 20 are staggered from each other. This avoids the alignment of the corresponding peaks or troughs of the second wave-shaped second wave of the two adjacent compliant annular units 20, thereby preventing positional interference at the corresponding peaks and troughs when the compliant annular unit 20 undergoes large-angle bending. On the one hand, this avoids reducing the range of bendable angles, which is beneficial to improving the compliance of the compliant annular unit 20. On the other hand, it avoids deformation and outward expansion of the compliant annular unit 20, and avoids damage to the inner wall of the secondary artery 3 by the outward expansion of the compliant annular unit 20.

[0062] In an optional embodiment, for two adjacent support-type components 1, the first wavy trough of one support-type component 1 connects to the corresponding first wavy peak of the other support-type component 1 to form a first connection point 12. At least three first wavy troughs are arranged between the two first connection points 12, meaning one first connection point 12 is provided for every at least three first wavy troughs. This allows multiple first connection points 12 to be distributed circumferentially along the support-type components 1 to connect two adjacent support-type annular units 10. Furthermore, by limiting the connection between the first wavy trough of one support-type annular unit 10 and the corresponding first wavy peak of the other support-type annular unit 10, it is ensured that two adjacent support-type annular units 10 are connected in an alternating manner. By limiting the number of first wavy troughs between two first connection points 12 to at least three, the support-type component 1 can possess a certain degree of flexibility while ensuring sufficient support performance, thereby improving the applicability of the support-type component 1 in the secondary artery 3.

[0063] Optionally, the first connection point 12 is integrally formed with two adjacent support-type parts 1.

[0064] For two adjacent compliant segments 2, the second wave-shaped trough of one compliant segment 2 connects to the corresponding peak of the second wave-shaped trough of the other compliant segment 2 to form a second connection point. At least four second wave-shaped troughs are arranged between the two second connection points, meaning one second connection point is provided for every at least four second wave-shaped troughs. This arrangement of multiple second connection points along the circumference of the compliant segment 2 connects two adjacent compliant annular units 20. Furthermore, by limiting the connection between the second wave-shaped trough of one compliant annular unit 20 and the corresponding peak of the second wave-shaped trough of another supporting annular unit 10, it is ensured that two adjacent compliant annular units 20 are staggered together. By limiting the number of second wave-shaped troughs between two second connection points to at least four, sufficient flexibility of the compliant segment 2 can be ensured, thereby meeting the requirement for large-angle bending of the secondary artery 3. The two ends of the compliant segment 2 can be bent relative to each other at 30° to 145°.

[0065] See Figure 1 As shown, in an optional embodiment, the compliant segment 2 further includes multiple linear connecting segments 22. Each connecting segment 22 connects the multiple compliant ring units 20 of the compliant segment 2 by connecting the second wave-shaped trough of one compliant ring unit 20 to the second wave-shaped peak of another compliant ring unit 20 between any two adjacent compliant ring units 20. Since the connecting segment 22 is linear, the distance between two compliant ring units 20 can be determined by determining the length of the connecting segment 22 between two adjacent compliant ring units 20. The distance between two compliant ring units 20 is the third distance. The larger the third distance, the better the compliance of the compliant segment 2; the smaller the third distance, the worse the compliance of the compliant segment 2. To avoid structural collapse of the compliant segment 2 and ensure its structural stability, the third distance should not be set too large.

[0066] In the optional solutions of this embodiment, see Figure 3 As shown, the diameters of multiple supporting components 1 and multiple compliant components 2 are all equal. By ensuring that the diameters of multiple supporting components 1 and multiple compliant components 2 in the modular endovascular repair device are all equal, an equal-diameter modular endovascular repair device can be obtained. It is suitable for treating the equal-diameter segment of secondary artery 3.

[0067] Or see Figure 4As shown, at least any two of the multiple supporting components 1 and multiple compliant components 2 have unequal diameters, that is, the diameters of the multiple supporting components 1 and multiple compliant components 2 are not all equal, thus obtaining a variable diameter modular endovascular repair device, which can improve the fit between the modular endovascular repair device and the secondary artery 3, and is beneficial to improving the treatment effect.

[0068] In an optional embodiment, the modular endovascular repair device further includes a flexible polymer connector. This flexible polymer connector connects two adjacent support-type components 1, or two adjacent compliant components 2, or two adjacent support-type components 1 and compliant components 2. In other words, the flexible polymer connector enables a flexible connection between the two separate stents (support-type component 1 or compliant component 2). Since the dimensions of the flexible polymer connector along the extension direction of the secondary artery 3 are selectable, long-distance connection between the two separate stents can be achieved, reducing the number of stents used and thus lowering the amount of surgical procedures and costs.

[0069] Optionally, the polymer flexible connector can be a polymer mesh flexible connector, which has a certain supporting effect.

[0070] In an optional embodiment, the modular endovascular repair device further includes a snap fastener. Along the extension direction of the secondary artery 3, the snap fastener is used to connect two adjacent support-type components 1, or two adjacent compliant components 2, or two adjacent support-type components 1 and compliant components 2. This allows for a direct connection between the two modular stents (support-type component 1 or compliant component 2).

[0071] Optionally, taking two adjacent support-type parts 1 and compliant parts 2 as an example, the male buckle is located on the support-type annular unit 10 of the support-type part 1 closest to the compliant part 2, and at the crest of the first wave. The female buckle is located on the compliant annular unit 20 of the compliant part 2 closest to the support-type part 1, and at the trough of the second wave. The two adjacent support-type parts 1 and compliant parts 2 are connected together by the male and female buckles engaging. Two adjacent support-type parts 1 and compliant parts 2 can be connected at multiple points via buckles. The modular endovascular repair device formed by directly connecting support-type parts 1 and compliant parts 2 via buckles can be applied to areas with rapid blood flow, such as the carotid artery. It is understood that two adjacent support-type parts 1 or two adjacent compliant parts 2 can be connected by buckles in this manner.

[0072] In the optional embodiment, both the supporting component 1 and the compliant component 2 are formed by carving hollow tubes, ensuring that the supporting ring unit 10 and the compliant ring unit 20 form a closed ring. Furthermore, the two adjacent supporting ring units 10 and the first connection point 12 between them can be integrally formed, and the two adjacent compliant ring units 20 and the second connection point between them and the connecting component 22 can be integrally formed. This simplifies the production difficulty of the supporting component 1 and the compliant component 2 and improves the structural reliability of the supporting component 1 and the compliant component 2.

[0073] Optionally, both the supportive and compliant split sections 2 are formed by laser engraving hollow tubes.

[0074] The supporting component 1 and the compliant component 2 are made of polymer, nickel-titanium alloy or cobalt-chromium alloy to ensure the biocompatibility of the supporting component 1 and the compliant component 2.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features of different embodiments are meant to be within the scope of the present invention and form different embodiments. For example, any one of the claimed embodiments can be used in any combination. The information disclosed in this background section is only intended to enhance the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form implying that such information constitutes prior art known to those skilled in the art.

Claims

1. A modular, modular endocavitary repair device, characterized in that, The support type sub-body comprises a plurality of support type ring units, the support type ring units are in a first wave shape, and the wave crests and wave troughs of the first wave shape are in a bent shape; The compliance type sub-body comprises a plurality of compliance type ring units, the compliance type ring units are in a second wave shape, and the wave crests and wave troughs of the second wave shape are in a smooth shape; A plurality of the support type ring units are sequentially fixedly connected in the extension direction of the secondary artery to form the support type sub-body; A plurality of the compliance type ring units are sequentially fixedly connected in the extension direction of the secondary artery to form the compliance type sub-body; The support type sub-body is mainly used to increase the radial support capability, and the compliance type sub-body is mainly used to increase the compliance, and the support type sub-body and the compliance type sub-body are used in combination according to the release area of the stent and the purpose in specific operation to construct the sub-body combined intraluminal repair instrument suitable for a patient; The support type ring unit is formed by a plurality of herringbone monomers sequentially connected in the circumferential direction of the sub-body combined intraluminal repair instrument; The compliance type ring unit is formed by a plurality of sinusoidal curve monomers sequentially connected in the circumferential direction of the sub-body combined intraluminal repair instrument; The interval between two adjacent support type ring units in the extension direction of the secondary artery is a first interval, the interval between two adjacent compliance type ring units in the extension direction of the secondary artery is a second interval, the first interval is not greater than 1 mm, and the second interval is not less than 2 mm; The height of the sinusoidal curve monomer ranges from 2 mm to 8 mm; The height of the herringbone monomer ranges from 2 mm to 8 mm; The herringbone monomer comprises a first part and a second part arranged in a cross shape, the first part and the second part each comprise a first segment and a second segment connected to the first segment, the first segment of the first part is connected to the first segment of the second part and forms a first included angle, and the first included angle ranges from 25° to 35°; The second segment of the first part and the second segment of the second part form a second included angle, and the second included angle ranges from 50° to 70°; The first segment of the first part, the second segment of the first part, the first segment of the second part, and the second segment of the second part are in a straight line shape or an arc shape close to a straight line.

2. The sub-body combined intraluminal repair instrument according to claim 1, wherein Along the circumferential direction of the sub-body combined intraluminal repair instrument, two adjacent support type ring units are staggered with each other, so that the corresponding wave crests of the first wave shape of the two adjacent support type ring units are staggered with each other and the corresponding wave troughs of the first wave shape are staggered with each other; Along the circumferential direction of the sub-body combined intraluminal repair instrument, two adjacent compliance type ring units are staggered with each other, so that the corresponding wave crests of the second wave shape of the two adjacent compliance type ring units are staggered with each other and the corresponding wave troughs of the second wave shape are staggered with each other.

3. The sub-body combined intraluminal repair instrument according to claim 2, wherein For two adjacent support-type ring units, a first wavy trough of one of the support-type ring units is connected with a corresponding first wavy peak of another of the support-type ring units to form a first connection point, and at least three first wavy troughs are arranged between two first connection points. For two adjacent flexible-type ring units, a second wavy trough of one of the flexible-type ring units is connected with a corresponding second wavy peak of another of the flexible-type ring units to form a second connection point, and at least four second wavy troughs are arranged between two second connection points.

4. The split combined intraluminal repair device according to claim 2, wherein: the flexible-type split further comprises a plurality of linear connecting splits, each of the connecting splits connecting a plurality of flexible-type ring units of the flexible-type split in a manner that connects a second wavy trough of one of the flexible-type ring units with a second wavy peak of another of the flexible-type ring units.

5. The split combined intraluminal repair device according to claim 1, wherein: the diameters of the plurality of support-type splits and the plurality of flexible-type splits are equal; alternatively, the diameters of at least any two of the plurality of support-type splits and the plurality of flexible-type splits are not equal.

6. The split-combination endoluminal prosthetic device according to claim 1, wherein, further comprising a polymer flexible connector, wherein: the polymer flexible connector is used to connect two adjacent support-type splits, or the polymer flexible connector is used to connect two adjacent flexible-type splits, or the polymer flexible connector is used to connect two adjacent support-type splits and flexible-type splits. further comprising a buckle; 7. The split-combination endoluminal prosthetic device according to claim 1, wherein, in the extension direction of the secondary arteries, the buckle is used to connect two adjacent support-type splits, or the buckle is used to connect two adjacent flexible-type splits, or the buckle is used to connect two adjacent support-type splits and flexible-type splits.

8. The split combined intraluminal repair device according to claim 1, wherein: the support-type splits and the flexible-type splits are formed by hollow tubes engraved; the materials of the support-type splits and the flexible-type splits are polymers, nickel-titanium alloys, or cobalt-chromium alloys. ​

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