Windowing assembly, windowing support and support system

Abstract

The application provides a windowing assembly, a windowing support and a support system, and relates to the technical field of medical devices. The windowing main body is provided with a through main body through hole. The windowing main body is configured to be connected in penetration with the windowing hollow of the windowing support based on the main body through hole. At least part of the main body structure of the windowing main body has a deformation capacity. The windowing main body is configured to be locked and fitted to the bridging support of the windowing hollow of the windowing support based on the deformation capacity. The windowing main body can be locked (or tightly held) and fitted to the bridging support of the windowing hollow of the windowing support based on the deformation capacity. The bridging support is prevented from being displaced. The gap between the windowing main body of the windowing assembly and the bridging support is reduced. The occurrence of internal leakage is slowed down or prevented. Moreover, the windowing assembly is an entity assembly and has a certain height. Therefore, the windowing main body of the windowing assembly and the bridging support can have a more sufficient contact overlapping area, can be better adhered to each other, and the occurrence of internal leakage is prevented.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to fenestration components, fenestration supports, and support systems. Background Technology

[0002] Aortic arch disease is a serious cardiovascular disease that endangers life and health. It mainly includes aortic dissection, aneurysm, intramural hematoma and penetrating ulcer that involve the aortic arch. Due to its complex condition, high mortality rate and many complications, it has long been a key and difficult area of ​​research for cardiac and vascular surgery.

[0003] Due to the unique anatomical structure and complex hemodynamic environment of the aortic arch, surgical treatment of aortic arch diseases has always been highly challenging. With advancements in medical technology and the development of surgical instruments, current main techniques include aortic arch replacement, hybrid techniques, chimney techniques, branch stenting techniques, and fenestration techniques.

[0004] However, aortic arch replacement surgery is complex and challenging, potentially leading to high complication and mortality rates in high-risk patients with multiple comorbidities. Hybrid techniques suffer from postoperative endoleaks and poor long-term patency of branch vessels. Chimney techniques have a high incidence of postoperative endoleaks and stent migration. Branch stent techniques offer good overall integrity and a low endoleak rate, but are difficult to use in patients with multi-branch involvement. Multi-branch stent techniques are still in the research stage, with complex procedures, high rates of complications such as stroke, and no commercially available products yet. In-situ fenestration techniques require modification of the product on the operating table, increasing surgical complexity, and the use of in-situ perforation tools increases the risk of neurological complications, arterial wall damage, and stent structure destruction. In response, pre-fenestration technology pre-fenestrates the stent externally before release, relying on fenestration marking and suturing, and multi-angle positioning to accurately release the stent to the lesion site, overcoming many problems caused by in-situ perforation in in-situ fenestration techniques. However, pre-fenestration technology also carries risks such as bridging stent endoleaks and stent migration, which are technical problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to provide a window opening component, a window opening bracket, and a bracket system to address at least one of the aforementioned technical problems.

[0006] This application provides a window opening assembly configured for mounting on a window opening bracket with a window opening cutout, the window opening assembly comprising:

[0007] A window opening body is provided with a through hole. The window opening body is configured to be connected to the window opening cutout of the window opening bracket based on the through hole. At least a part of the main structure of the window opening body has deformation capability. The window opening body is configured to lock a bridging bracket adapted to the window opening cutout of the window opening bracket based on the deformation capability.

[0008] In one embodiment, the entire main structure of the window opening body is deformable; and / or,

[0009] The deformation capability of the window opening body is configured as elastic deformation capability; and / or,

[0010] The window opening body is configured to have an axial direction and a radial direction. The deformation capacity of the window opening body includes at least one of axial deformation capacity and radial deformation capacity. The axial deformation capacity is configured as the ability of the window opening body to elongate or shorten along its axial direction, and the radial deformation capacity is configured as the ability of the window opening body to expand or retract along its radial direction; and / or,

[0011] The window opening body is configured as an annular structure that surrounds the entire circumference or partially surrounds it, and the inner ring of the annular structure is configured as a through hole for constituting the main body of the window opening body.

[0012] In one embodiment, the window opening body includes:

[0013] A helical coil configured to have elastic deformation capability, the elastic deformation capability of the helical coil including at least one of axial deformation capability and radial deformation capability.

[0014] In one embodiment, the window opening body includes:

[0015] An elastic element disposed on the helical coil, the elastic element being configured to enhance at least one of the axial and radial deformation capabilities of the helical coil; and / or

[0016] A developing element is disposed on the spiral coil.

[0017] In one embodiment, the elastic element is configured as an elastic thread disposed along the length of the helical coil; and / or,

[0018] The developing element is configured as a developing line, which is disposed on the spiral coil.

[0019] In one embodiment, the elastic thread is spirally wound around the spiral coil along its length; and / or,

[0020] The developing thread is spirally wound around the spiral coil along its length; and / or

[0021] At least one end of the elastic thread is connected to at least one end of the spiral coil; and / or

[0022] At least one end of the developing wire is connected to at least one end of the coil in the spiral coil.

[0023] In one embodiment, the elastic thread is wound spirally around the helical coil two or more times; and / or,

[0024] The developing thread is spirally wound around the spiral coil two or more times; and / or,

[0025] The two ends of the elastic wire are respectively connected to the two ends of the coil in the helical coil; and / or

[0026] The two ends of the developing wire are respectively connected to the two ends of the coil in the spiral coil.

[0027] In one embodiment, the window opening component includes:

[0028] A protective film layer is disposed on the surface of the window opening body.

[0029] This application provides a window opening bracket, the window opening bracket comprising:

[0030] The window opening component, and the number of the window opening components is configured to be at least one;

[0031] The bracket body has a bracket cavity that extends through both ends. At least one window opening that communicates with the bracket cavity is opened on the bracket surface of the bracket body. At least one window opening is provided with the window assembly.

[0032] This application provides a support system, the support system comprising:

[0033] The window opening bracket;

[0034] A conveying device configured to convey the window opening bracket.

[0035] In the aforementioned window opening assembly, window opening bracket, and bracket system, the main body of the window opening assembly possesses deformation capability. Therefore, when the bridging bracket is matched and connected to the window opening perforation of the window opening bracket, the main body of the window opening assembly can lock (or tighten) the bridging bracket adapted to the window opening perforation of the window opening bracket based on its deformation capability, preventing the bridging bracket from shifting. Moreover, when the main body of the window opening assembly locks (or tightens) the bridging bracket, the gap between the main body of the window opening assembly and the bridging bracket will decrease, thereby mitigating or preventing internal leakage of the window opening perforation of the window opening bracket.

[0036] Furthermore, as a physical component, the fenestration assembly inherently possesses a certain height, specifically in the axial direction. This allows for a greater overlap between the fenestration body and the bridging stent, resulting in a better fit and preventing internal leakage. Simultaneously, the increased contact area enhances the friction between the fenestration body and the bridging stent, further preventing stent displacement and improving the overall fit, thus better protecting the supra-arch branch vessels. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a window opening bracket provided in one embodiment of this application.

[0038] Figure 2 This is a schematic diagram of the structure of a window opening body provided in one embodiment of this application.

[0039] Figure 3 This is a schematic diagram of the structure of a protective film layer provided in one embodiment of this application.

[0040] Figure 4 This is a schematic diagram of the first stage of the fenestrated stent implantation process provided in one embodiment of this application.

[0041] Figure 5 This is a schematic diagram of the second stage of the fenestrated stent implantation process provided in one embodiment of this application.

[0042] Icon labels:

[0043] 10. Target vessel; 11. Brachiocephalic artery; 12. Left common carotid artery; 13. Left subclavian artery;

[0044] 100. Window opening bracket; 200. Bridging bracket; 300. Branch bracket;

[0045] 1000, Window opening assembly; 2000, Support body;

[0046] 1100. Main window opening;

[0047] 1101, Main body through hole; 1102, Protective film layer; 1110, Spiral coil; 1120, Elastic element; 1130, Developing element;

[0048] 2001, inner cavity of the support; 2002, openwork window. Detailed Implementation

[0049] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0051] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] See Figure 1 As shown, this application provides a fenestrated stent 100, which includes a fenestrated component 1000 and a stent body 2000. The stent body 2000 has a stent cavity 2001 extending through both ends and is configured in a generally cylindrical structure to match the structure of the target blood vessel 10. Therefore, the size of the stent body 2000 can be specifically designed according to the size of the target blood vessel 10. Those skilled in the art can design stent bodies 2000 of different specifications according to the type and size of the target blood vessel 10, which is not limited here.

[0056] The main body of the stent 2000 can be composed of a membrane and a metal stent. The membrane material can be selected from polymer materials with good biocompatibility, including but not limited to polyester, polyurethane, polytetrafluoroethylene, or expanded polytetrafluoroethylene. The metal stent can be selected from metal materials such as nickel-titanium alloy, stainless steel alloy, or cobalt-chromium alloy. The connection method between the metal stent and the membrane can be selected from stitching or heat fusion, etc., without limitation.

[0057] One or more openings 2002 can be formed on the surface of the support body 2000 to connect with the inner cavity 2001 of the support. The number of opening components 1000 can also be configured to be at least one as needed. For example Figure 1 As shown, a window opening (2002) is created. Or, as shown... Figure 4 or Figure 5The diagram shows three window openings 2002, wherein at least one of the window openings 2002 can be equipped with the aforementioned window component 1000.

[0058] Regarding the aforementioned window opening component 1000, the window opening component 1000 can be installed in the window opening cutout 2002 of the window opening bracket 100. Therefore, the structure of the window opening component 1000 can be designed for the window opening cutout 2002. For example, the window opening component 1000 may include a window opening body 1100, which represents the main structure of the window opening component 1000. The window opening body 1100 is provided with a through main body through hole 1101, so that the window opening body 1100 is designed to form a roughly annular structure based on the design of the main body through hole 1101.

[0059] The window opening body 1100 can be configured as an annular structure that surrounds the entire circumference or partially surrounds it. In one embodiment, the window opening body 1100 can be defined as surrounding the circumference at least two times, for example, two full circles or two and a half circles, without limitation. The inner annular ring of the annular structure is configured to form the main body through hole 1101 of the window opening body 1100. Therefore, the window opening body 1100 can be configured to be connected to the window opening cutout 2002 of the window opening bracket 100 through the main body through hole 1101, that is, the window opening component 1000 is disposed at the corresponding position of the window opening cutout 2002 on the bracket body 2000, and the main body through hole 1101 of the window opening body 1100 is interconnected with the window opening cutout 2002.

[0060] It should be noted that at least a portion of the main structure of the aforementioned window opening body 1100 needs to possess deformation capability. Therefore, when the bridging bracket 200 is matched and connected to the window opening perforation 2002 of the window opening bracket 100, the window opening body 1100 of the window opening assembly 1000 can lock (or hold) the bridging bracket 200 adapted to the window opening perforation 2002 of the window opening bracket 100 based on its deformation capability, preventing the bridging bracket 200 from shifting. Moreover, when the window opening body 1100 of the window opening assembly 1000 locks (or holds) the bridging bracket 200, the gap between the window opening body 1100 of the window opening assembly 1000 and the bridging bracket 200 will decrease, thereby mitigating or preventing internal leakage of the window opening perforation 2002 of the window opening bracket 100.

[0061] Furthermore, as a physical component, the fenestration assembly 1000 inherently possesses a certain height, specifically in the axial direction. Therefore, the fenestration body 1100 of the fenestration assembly 1000 and the bridging stent 200 can have a more substantial contact overlap area, resulting in better mutual fit and preventing internal leakage. Simultaneously, the increased friction between the fenestration body 1100 and the bridging stent 200 due to the increased contact area further enhances their fit, preventing displacement of the bridging stent 200 and improving the protection of the supra-arc branch vessels.

[0062] Regarding the deformation capability of the aforementioned window opening body 1100, in one embodiment, the entire main structure of the window opening body 1100 can possess deformation capability, and this deformation capability can be configured as elastic deformation capability, that is, the deformation of the window opening body 1100 is achieved by using elastic force, thereby using elastic force to lock the bridging bracket 200. This elastic deformation capability will generate a reverse elastic force after being subjected to force, and the reverse elastic force will be applied to the bridging bracket 200 in the opposite direction, thereby achieving elastic locking of the bridging bracket 200. Alternatively, the deformation capability of the aforementioned window opening body 1100 can also be achieved without relying on elastic force, but rather through simple deformation with a certain locking force, such as damped deformation or deformation based on structural design, material properties, etc.

[0063] For example, after the window opening body 1100 comes into contact with the bridging bracket 200, the window opening body 1100 can change its shape under external force. That is, the window opening body 1100 is a non-elastic component and has the ability to stretch. The non-elastic window opening body 1100 with stretching capability can be woven into a mesh structure, which can be stretched to a different length. Therefore, during the process of the window opening body 1100 changing its shape under external force, the locking action on the bridging bracket 200 can be more gradual. The shape change of the window opening body 1100 is also limited; that is, after the window opening body 1100 reaches its deformation limit, it cannot continue to change shape. When the window opening body 1100 contacts the bridging bracket 200, the window opening body 1100 will change its shape due to the external force, and still maintain a gradual contact with the bridging bracket 200, thus locking the bridging bracket 200.

[0064] Alternatively, the non-elastic window body 1100 with extensibility can be determined based on the characteristics of the manufacturing material, the manufacturing structure, or both. For example, at least a portion of the window body 1100 can be formed as a mesh structure, which can be a columnar mesh or a sheet mesh. The mesh structure can eliminate or reduce elasticity in the choice of material, and even if it has elasticity, it is so small as to be negligible. When a non-elastic material constitutes a mesh structure, the mesh structure, due to its gaps or pores, can undergo morphological changes after being subjected to external forces. Specifically, the size and shape of the gaps or pores in the mesh structure undergo microscopic changes. By utilizing the changes in the gaps or pores of the mesh structure, a macroscopic change in the overall morphology of the mesh structure can be caused. The proportion of the mesh structure on the window body 1100 will affect the actual deformation capacity of the window body 1100. That is, the larger the proportion of the mesh structure on the window body 1100, the greater the deformation capacity of the window body 1100. The smaller the proportion of the mesh structure on the window body 1100, the smaller the deformation capacity of the window body 1100. In fact, when the entire window body 1100 is a mesh structure, the deformation capacity of the window body 1100 will be objectively maximized.

[0065] For deformation capacity that lacks elasticity, specific testing methods can be used to define it. For example, with one end of the window body 1100 constrained, the amount of shape change of the window body 1100 under the same external force characterizes its deformation capacity. This allows for a more intuitive observation of the shape change of the window body 1100. When the window body 1100 is linear or strip-shaped, with one end constrained, applying a tensile force to the other end of the window body 1100, the amount of length change of the window body 1100 under the same tensile force characterizes its deformation capacity. The greater the length change, the greater the deformation capacity it represents; conversely, the smaller the length change, the smaller the deformation capacity it represents. Therefore, under the same external force, the greater the shape change of the window body 1100, the easier it is to be stretched and deformed.

[0066] Those skilled in the art can choose an appropriate method to construct the deformation capability of the window body 1100 according to actual needs, and no limitation is made here.

[0067] Regarding the direction of the deformation capacity of the window opening body 1100, the window opening body 1100 can be configured to have an axial direction and a radial direction based on its annular structure. In this case, the deformation capacity of the window opening body 1100 can be limited to include at least one of the axial deformation capacity and the radial deformation capacity. The axial deformation capacity is configured as the deformation capacity of the window opening body 1100 to extend or shorten along its axial direction, and the radial deformation capacity is configured as the deformation capacity of the window opening body 1100 to expand or retract along its radial direction. Moreover, the deformation capacity of the window opening body 1100 is not limited to axial and radial deformation capacity. In addition, the deformation capacity of the window opening body 1100 can also deform in other directions other than axial and radial as the force changes, thereby achieving multi-directional locking of the bridging bracket 200 and improving the locking effect.

[0068] Regarding the design of the window body 1100, in one embodiment, see [reference needed]. Figure 2 As shown, the window opening body 1100 may include a spiral coil 1110. Based on its spiral design, the spiral coil 1110 can be configured to have elastic deformation capability through structural design. Furthermore, the elastic deformation capability of the spiral coil 1110 includes at least one of axial deformation capability and radial deformation capability, as well as the ability to deform in other non-axial and non-radial directions in response to changes in force. The material of the spiral coil 1110 can be selected from metallic materials such as nickel-titanium alloy, stainless steel alloy, or cobalt-chromium alloy.

[0069] Continue to participate Figure 2 As shown, in one embodiment, the window opening body 1100 may further include at least one of an elastic element 1120 and a developing element 1130. The elastic element 1120 is disposed on the helical coil 1110 and may be configured to enhance at least one of the axial and radial deformation capabilities of the helical coil 1110, i.e., strengthen the deformation capability, ensuring that the window opening body 1100 of the window opening assembly 1000 has a superior (or sufficient) deformation capability. Based on this superior (or sufficient) deformation capability, a better (or more sufficient) locking (or clamping) effect is applied to the bridging bracket 200, ensuring that the bridging bracket 200 does not shift and effectively preventing internal leakage.

[0070] The elastic element 1120 can be configured as an elastic thread, which is disposed along the length of the helical coil 1110. Alternatively, the elastic element 1120 can also be a sheet, mesh, or other structure; no limitation is made here. Furthermore, the elastic thread can also be... Figure 2The method shown involves spirally winding the elastic yarn around the helical coil 1110 along its length. For example, the elastic yarn can be wound two or more times around the helical coil 1110. Here, two turns can be defined as the circumference of two full turns of the helical coil 1110. Figure 2 The length of 1110 shown.

[0071] The elastic thread is spirally wound around the spiral coil 1110 two or more times. This ensures that the height of the window opening assembly 1000 is at least 2mm, allowing for a more sufficient contact overlap between the window opening assembly 1000 and the bridging bracket, resulting in better fit and preventing internal leakage. Simultaneously, it also ensures that the window opening assembly 1000 provides sufficient locking force to the subsequent bridging bracket.

[0072] At least one end of the elastic wire is connected to at least one end of the coil in the helical coil 1110. For example, both ends of the elastic wire are connected to the two ends of the coil in the helical coil 1110 respectively, and can be fixed by welding or other methods. The elastic wire can be made of metal materials such as nickel-titanium alloy or platinum-tungsten alloy.

[0073] Also see Figure 2 As shown, the developing element 1130 is disposed in the spiral coil 1110, enabling it to develop within the windowed body 1100. The developing element 1130 can be configured as a developing line disposed in the spiral coil 1110. Alternatively, the developing element 1130 can also be a sheet-like, mesh-like, or dot-like structure, etc., without limitation. Furthermore, the developing line can also be as follows... Figure 2 The method shown involves spirally winding the developing thread around the spiral coil 1110 along its length. For example, the number of turns of the developing thread around the spiral coil 1110 can be two or more. Similarly, the two turns mentioned here can also be defined as the circumference of two full turns of the spiral coil 1110. Figure 2 The length of 1110 is shown. The number of turns of the developing thread is the same as the number of turns of the spiral coil 1110, which can completely cover the spiral coil 1110 and achieve the purpose of fully developing the window assembly 1000.

[0074] At least one end of the developing line is connected to at least one end of the coil in the spiral coil 1110. For example, two ends of the developing line are connected to two ends of the coil in the spiral coil 1110 respectively, and can be fixed by means of welding or other methods. The developing element 1130 can be made of a developing material such as pure gold.

[0075] Continue reading Figure 3As shown, in one embodiment, the fenestration assembly 1000 may further include a protective film layer 1102, which is disposed on the surface of the fenestration body 1100. The protective film layer 1102 may be selected as a polymer material with good biocompatibility, including but not limited to polyester, polyurethane, polytetrafluoroethylene, or expanded polytetrafluoroethylene. The protective film layer 1102 completely covers the fenestration body 1100, which can reduce the friction of the spiral coil 1110, elastic element 1120, and imaging element 1130 in the fenestration body 1100 on the blood vessels, thereby protecting the blood vessels. After the protective film layer 1102 covers the spiral coil 1110, elastic element 1120, and imaging element 1130, the edge of the protective film layer 1102 can be sewn to the edge of the fenestration cutout 2002 of the stent body 2000.

[0076] In addition, the protective film layer 1102 may also be limited to covering only the portion of the fenestrated body 1100 that is in contact with the blood vessel, rather than completely covering the fenestrated body 1100 as described above. For example, the fenestrated body 1100 may be located on the main support 2000, meaning that the portion of the fenestrated body 1100 that is in contact with the main support 2000 will not be in contact with the blood vessel. Therefore, the protective film layer 1102 only needs to cover the exposed portion of the fenestrated body 1100 (that is, the portion of the fenestrated body 1100 that is not in contact with the main support 2000).

[0077] This application provides a support system including a window opening support 100 and a conveying device configured to convey the window opening support 100. (See also...) Figure 4 and Figure 5 As shown, the main body 2000 of the window opening bracket 100 can be an integrated single-branch bracket 300, such as... Figure 4 As shown, its branch support 300 can be sewn onto the main body of the integrated single branch support 300. Among them, two window components 1000 can be pre-precisely set at the proximal end of the support body 2000, for example, by sewing them together.

[0078] During the procedure, a straight incision was made in the left neck to expose the left common carotid artery 12, with a 7F vascular sheath pre-placed. Both brachial arteries were punctured and each pre-placed with an 8F sheath. The right femoral artery was punctured and a 12F vascular sheath was pre-placed. The guidewire catheter with the stent body 2000 was inserted through the left common carotid artery 12 approach, superselectively pulled out through the right femoral artery approach, and stretched. A fenestrated stent 100 was inserted externally. The stent body 2000 is a single-branch stent 300, with its branch stent 300 inserted into the left common carotid artery 12.

[0079] After confirming accurate positioning of the single-branch stent 300, it was fully released. The fenestration positions of the two fenestration components 1000 were then observed to be accurate. One fenestration component 1000 was aligned with the brachiocephalic artery 11, and the other fenestration component 1000 was aligned with the left subclavian artery 13. The fenestration component 1000 at the brachiocephalic artery 11 was superselectively inserted via the right brachial artery approach. The fenestration cutout 2002 at the brachiocephalic artery 11 was pre-dilated using a balloon. A bridging stent 200 of 12mm to 50mm was then inserted between the brachiocephalic artery 11 and the thoracic aorta, and post-dilation was performed using a balloon.

[0080] A guidewire is inserted via the left brachial artery approach and superselectively inserted into the fenestration component 1000 at the left subclavian artery 13. It is then guided down the aorta to the right femoral artery sheath and pulled out to create traction. The fenestration 2002 of the left subclavian artery 13 is pre-dilated using a balloon, and an 11mm to 50mm bridging stent 200 is inserted between the left subclavian artery 13 and the thoracic aorta.

[0081] Finally, the puncture site is sutured and bandaged, and the subcutaneous tissue and skin are sutured to complete the implantation.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A window opening component, characterized in that, The window opening assembly is configured for mounting on a window opening bracket with a window opening cutout, the window opening assembly comprising: A window opening body is provided with a through hole. The window opening body is configured to be connected to the window opening cutout of the window opening bracket based on the through hole. At least a part of the main structure of the window opening body has deformation capability. The window opening body is configured to lock a bridging bracket adapted to the window opening cutout of the window opening bracket based on the deformation capability.

2. The window opening assembly according to claim 1, characterized in that, The entire main structure of the window opening body has the ability to deform; and / or, The deformation capability of the window opening body is configured as elastic deformation capability; and / or, The window opening body is configured to have an axial direction and a radial direction. The deformation capacity of the window opening body includes at least one of axial deformation capacity and radial deformation capacity. The axial deformation capacity is configured as the ability of the window opening body to elongate or shorten along its axial direction, and the radial deformation capacity is configured as the ability of the window opening body to expand or retract along its radial direction; and / or, The window opening body is configured as an annular structure that surrounds the entire circumference or partially surrounds it, and the inner ring of the annular structure is configured as a through hole for constituting the main body of the window opening body.

3. The window opening assembly according to claim 1, characterized in that, The main body of the window opening includes: A helical coil configured to have elastic deformation capability, the elastic deformation capability of the helical coil including at least one of axial deformation capability and radial deformation capability.

4. The window opening component according to claim 3, characterized in that, The main body of the window opening includes: An elastic element disposed on the helical coil, the elastic element being configured to enhance at least one of the axial and radial deformation capabilities of the helical coil; and / or A developing element is disposed on the spiral coil.

5. The window opening assembly according to claim 4, characterized in that, The elastic element is configured as an elastic thread, which is disposed along the length of the helical coil; and / or... The developing element is configured as a developing line, which is disposed on the spiral coil.

6. The window opening assembly according to claim 5, characterized in that, The elastic thread is spirally wound around the spiral coil along its length; and / or The developing thread is spirally wound around the spiral coil along its length; and / or At least one end of the elastic thread is connected to at least one end of the spiral coil; and / or At least one end of the developing wire is connected to at least one end of the coil in the spiral coil.

7. The window opening assembly according to claim 6, characterized in that, The elastic thread is wound spirally around the spiral coil two or more times; and / or, The developing thread is spirally wound around the spiral coil two or more times; and / or, The two ends of the elastic wire are respectively connected to the two ends of the coil in the helical coil; and / or The two ends of the developing wire are respectively connected to the two ends of the coil in the spiral coil.

8. The window opening assembly according to claim 1, characterized in that, The window opening component includes: A protective film layer is disposed on the surface of the window opening body.

9. A window opening bracket, characterized in that, The window opening bracket includes: The window opening component as described in any one of claims 1-8, wherein the number of said window opening components is configured to be at least one; The bracket body has a bracket cavity that extends through both ends. At least one window opening that communicates with the bracket cavity is opened on the bracket surface of the bracket body. At least one window opening is provided with the window assembly.

10. A support system, characterized in that, The support system includes: The window opening bracket as described in claim 9; A conveying device configured to convey the window opening bracket.

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