Integrated blood vessel crevasse plugging device
Through the integrated blood vessel rupture sealing device, the rotational connection and clamping structure of the elastic true cavity stent and the braided mesh skeleton are solved, and the problems of complex sealing steps and poor sealing effect in the prior art are achieved. Simpler and more efficient vascular rupture and blocking reduces patient burden and blood flow effects.
Patent Information
- Application Number
- CN202323241897.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-11-29
AI Technical Summary
In the prior art, when sealing the aortic dissection rupture, there are problems such as large spring coil usage, long operation time, high economic burden on patients, and risk of occlusion device displacement, and complex operation.
The integrated blood vessel rupture sealing device is adopted, including an elastic true cavity stent and a braided mesh skeleton sealing component. It can be transported and released through a rotating connection. The waist is located at the rupture after the release, and the disc body is clamped on both ends. Blocking, elastic true cavity bracket supports and positioning to prevent the blocking component from being displaced.
The sealing steps are simplified, the physical burden on the patient is reduced, the sealing effect is improved, and the impact on blood flow in the aortic true cavity is reduced.
Smart Images
Figure CN222172187U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, in particular to an integrated blood vessel rupture sealing device. Background Art
[0002] At present, the main methods for sealing the rupture of aortic dissection include: (1) using a coil to fill the false lumen, and (2) using an occluder to seal the rupture of the false lumen. The existing technologies mainly have the following defects:
[0003] (1) Using coils to fill the false lumen and block the blood flowing into the false lumen has disadvantages such as large amount of coils, long operation time, and heavy economic burden on patients. In addition, the coils are metal structures and contact with the inner wall of the aortic false lumen, which will irritate the inner wall of the aortic false lumen and there is a risk of puncturing the false lumen. Moreover, since there is no film on the outer surface of the coils, the effect of blocking the blood flowing into the aortic false lumen is poor.
[0004] (2) Using an occluder to block the false lumen rupture. After the existing occluder is implanted, a portion of the occluder enters the false lumen and the other portion remains in the true lumen. Although this can block the false lumen rupture, the existing occluder is at risk of displacement after being impacted by blood flow, which can easily cause the problem of blood flow flowing into the false lumen rupture again. Therefore, after the existing occluder is implanted, it is usually necessary to implant another stent into the true lumen of the aorta to squeeze the portion of the occluder remaining in the true lumen of the aorta to prevent the occluder from shifting. This method requires the two-step implantation operation of first implanting the occluder and then implanting a stent to squeeze the portion of the occluder remaining in the true lumen of the aorta. The operation is complicated and prolongs the operation time. Utility Model Content
[0005] The purpose of the utility model is to provide an integrated blood vessel rupture sealing device to alleviate the above-mentioned technical problems existing in the prior art.
[0006] To achieve the above purpose, the embodiment of the utility model adopts the following technical solutions:
[0007] The embodiment of the utility model provides an integrated blood vessel rupture sealing device, including an elastic true lumen support and a rupture sealing component;
[0008] The elastic true lumen support is in a cylindrical shape;
[0009] The breach plugging component comprises a woven mesh frame and a plugging membrane; the woven mesh frame is woven from at least one elastic hard wire into a mesh hollow double-disc structure with coaxial discs at both ends and a waisted middle portion, and the plugging membrane is connected to and covers the surface of the woven mesh frame;
[0010] One side of the breach sealing component is rotatably connected to an opening edge of one end of the elastic true cavity support in the axial direction in a manner that the component can be rotated to be coaxial with the elastic true cavity support.
[0011] When the integrated vascular rupture sealing device is compressed in the conveying tube of the conveyor, one side of the rupture sealing component rotates to be coaxial with the elastic true lumen support. The skeleton of the rupture sealing component is a woven mesh skeleton, which can ensure a small volume when compressed. Since the rupture sealing component and the elastic true lumen support are rotatably connected to each other, the rupture sealing component and the elastic true lumen support can be conveyed and released at the same time during conveyance. When releasing, first find the rupture to release the rupture sealing component, and then push forward to release the elastic true lumen support.
[0012] In the post-release blocking state, the position state diagram of the rupture blocking component rotating relative to the elastic true cavity support, refer to Figure 4 Since the rupture sealing component and the elastic true lumen stent are rotationally connected as one, after release, the waist of the rupture sealing component is located at the rupture of the false lumen of the patient's blood vessel wall, and the disc structure at both ends clamps the rupture, and is supported by the elastic true lumen stent on the inner wall of the aortic true lumen, and forms radial extrusion and axial positioning for the rupture sealing component to prevent the rupture sealing component from shifting with the blood flow, thereby ensuring the rupture sealing effect.
[0013] In summary, compared with the prior art, the integrated vascular rupture sealing device provided in this embodiment has simpler sealing steps, less burden on the patient's body after implantation, and better sealing effect after implantation. After implantation, the elastic true lumen stent is supported on the inner wall of the aortic true lumen, and has relatively little impact on the blood flow in the patient's aortic true lumen.
[0014] In an optional implementation manner of this embodiment, more preferably, the elastic hard wire material is a metal wire or an alloy wire.
[0015] In some optional implementations of this embodiment, one side of the blocking component is rotatably connected to an opening edge of one end of the elastic true cavity support through a wire ring.
[0016] In some other optional implementations of this embodiment, one side of the breach sealing component is sutured and connected to an opening edge of one end of the elastic true lumen support.
[0017] In some optional implementations of this example, the elastic true lumen stent is a bare stent.
[0018] In some other optional implementations of this embodiment, the elastic true lumen stent is a coated stent.
[0019] Further preferably, the skeleton of the elastic true lumen stent is a grid-like stent.
[0020] When the elastic true lumen stent is a coated stent, optionally, the skeleton of the elastic true lumen stent includes a plurality of wavy stent rings spaced apart from each other in the axial direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the overall structure of an optional implementation of the integrated blood vessel rupture sealing device provided in an embodiment of the utility model;
[0023] Figure 2 for Figure 1 A partial structural diagram of the connection between the medium elastic true lumen stent and the breach sealing component;
[0024] Figure 3 for Figure 1 A diagram showing a state in which the integrated blood vessel rupture sealing device is compressed in a conveying tube of a conveyor;
[0025] Figure 4 for Figure 1 The integrated vascular rupture sealing device is implanted into the patient's blood vessel to seal the false lumen rupture;
[0026] Figure 5 This is a schematic diagram of the overall structure of another optional implementation of the integrated blood vessel rupture sealing device provided in an embodiment of the utility model.
[0027] Icon: 1-elastic true lumen stent; 2-breach sealing component. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] It should be noted that like reference numerals and letters denote similar items in the drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0031] In the description of the present utility model, it should be noted that the terms "proximal end", "distal end", "front end", "rear end", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] In particular, in the present invention, the upstream of the blood flow direction in the human body is referred to as the "proximal end" and the downstream is referred to as the "distal end".
[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0035] This embodiment provides an integrated blood vessel rupture sealing device, referring to Figures 1 to 5 The integrated blood vessel rupture sealing device comprises an elastic true lumen support 1 and a rupture sealing component 2.
[0036] The elastic true cavity stent 1 is cylindrical. The breach blocking component 2 includes a woven mesh frame and a blocking membrane; the woven mesh frame is woven from at least one elastic hard wire into a mesh hollow double-disc structure with coaxial discs at both ends and a waisted middle, and the blocking membrane is connected to and covers the surface of the woven mesh frame.
[0037] One side of the breach sealing component 2 is rotatably connected to an opening edge of one end of the elastic true lumen support 1 in the axial direction in a manner that the component can be rotated to be coaxial with the elastic true lumen support 1 .
[0038] like Figure 3 As shown, it is a state diagram of the integrated blood vessel rupture sealing device being compressed in the conveying tube of the conveyor. In this state, one side of the rupture sealing component 2 is rotated to be coaxial with the elastic true lumen support 1. The skeleton of the rupture sealing component 2 is a woven mesh skeleton, which can ensure a small volume when compressed. Since the rupture sealing component 2 and the elastic true lumen support 1 are rotatably connected to each other, the rupture sealing component 2 and the elastic true lumen support 1 can be transported and released at the same time during transportation. When releasing, first find the rupture to release the rupture sealing component 2, and then push forward to release the elastic true lumen support 1.
[0039] like Figure 1 , Figure 2 and Figure 4 As shown, it is a working state diagram of the opening sealing component 2 rotating relative to the elastic true cavity support 1 in the sealing state after release, referring to Figure 4 Since the rupture sealing component 2 and the elastic true lumen support 1 are rotationally connected as one, after release, the waist of the rupture sealing component 2 is located at the rupture of the false lumen of the patient's blood vessel wall, and the disc structure at both ends clamps the rupture. The elastic true lumen support 1 is supported on the inner wall of the aortic true lumen, and the rupture sealing component 2 is radially squeezed and axially positioned to prevent the rupture sealing component 2 from shifting with the blood flow, thereby ensuring the rupture sealing effect.
[0040] In summary, compared with the prior art, the integrated vascular rupture sealing device provided in this embodiment has simpler sealing steps, less burden on the patient's body after implantation, and better sealing effect after implantation. After implantation, the elastic true lumen stent 1 is supported on the inner wall of the aortic true lumen, and has relatively little impact on the blood flow in the patient's aortic true lumen.
[0041] In an optional implementation manner of this embodiment, more preferably, the elastic hard wire material is a metal wire or an alloy wire, preferably a titanium alloy wire.
[0042] In some optional implementations of this embodiment, one side of the plugging component is rotatably connected to the edge of one end of the opening of the elastic true lumen stent 1 through a wire ring. In other optional implementations of this embodiment, one side of the breach plugging component 2 is sutured and connected to the edge of one end of the opening of the elastic true lumen stent 1. The connection point can be a soft connection between the skeleton and the coating of the breach plugging component 2 and the end of the elastic true lumen stent 1.
[0043] like Figure 5 As shown, in some optional implementations of this embodiment, when there is only one rupture in the aortic vessel wall, it is more preferred that the elastic true lumen stent 1 is a bare stent, which, after implantation and opening, has a supporting effect while avoiding shielding the blood flow of other branch vessels.
[0044] like Figure 4 As shown, in some other optional implementations of the present embodiment, when there are two or more ruptures in the aortic vessel wall, it is more preferred that the elastic true lumen stent 1 is a coated stent, so that after implantation, when the elastic true lumen stent 1 is opened, its coating directly seals the rupture on the distal side.
[0045] Further preferably, the skeleton of the elastic true lumen stent 1 is a grid-like stent to improve its supporting force.
[0046] Wherein, when the elastic true lumen stent 1 is a coated stent, optionally, the skeleton of the elastic true lumen stent 1 may also be a skeleton structure including a plurality of wavy stent rings spaced apart from each other in the axial direction.
[0047] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other; the above embodiments in this specification are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. An integrated blood vessel rupture sealing device, characterized in that: It comprises an elastic true cavity support (1) and a breach sealing component (2); The elastic true cavity support (1) is cylindrical; The breach plugging component (2) comprises a woven mesh frame and a plugging membrane; the woven mesh frame is woven from at least one elastic hard wire into a mesh hollow double-disc structure with coaxial discs at both ends and a waisted middle portion, and the plugging membrane is connected to and covers the surface of the woven mesh frame; One side of the breach sealing component (2) is rotatably connected to an opening edge of an axial end of the elastic true cavity support (1) in a manner that allows it to be rotated to be coaxial with the elastic true cavity support (1).
2. The integrated blood vessel rupture sealing device according to claim 1, characterized in that: The elastic hard wire material is a metal wire or an alloy wire.
3. The integrated blood vessel rupture sealing device according to claim 1, characterized in that: One side of the blocking component is rotatably connected to an opening edge of one end of the elastic true cavity support (1) through a wire ring.
4. The integrated blood vessel rupture sealing device according to claim 1, characterized in that: One side of the breach sealing component (2) is sutured and connected to an opening edge of one end of the elastic true cavity support (1).
5. The integrated blood vessel rupture sealing device according to claim 1, characterized in that: The elastic true lumen stent (1) is a bare stent.
6. The integrated blood vessel rupture sealing device according to claim 1, characterized in that: The elastic true lumen stent (1) is a coated stent.
7. The integrated blood vessel rupture sealing device according to claim 5 or 6, characterized in that: The skeleton of the elastic true lumen support (1) is a grid-shaped support.
8. The integrated blood vessel rupture sealing device according to claim 6, characterized in that: The skeleton of the elastic true lumen support (1) comprises a plurality of wavy support rings spaced apart from each other in the axial direction.