A blocking device

Abstract

The present invention discloses a blocking device, which includes a first disc, a second disc, a waist and a connecting part; wherein the first disc and the second disc are connected through the waist; the first disc is used to be placed on the first side of the part to be blocked; the second disc is used to be placed on the second side of the part to be blocked; the waist runs through the part to be blocked; the first disc and / or the second disc are provided with the connecting part on one side close to the part to be blocked, and the connecting part is used to be fixedly connected with the surrounding tissue of the part to be blocked. The present invention can accurately block the part to be blocked, and can make the first disc, the second disc and the waist fit well on the surrounding tissue wall of the part to be blocked, and can prevent the blocking device from falling off, and can prevent excessive blocking by using the blocking device, so as to prevent the blood flow of the collateral vessels of the part to be blocked from being blocked and avoid paralysis.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a blocking device. Background Art

[0002] Cardiovascular disease usually includes heart disease and / or vascular disease. Common congenital heart diseases include ventricular septal defect, atrial septal defect, patent ductus arteriosus, patent foramen ovale and other types. Among vascular diseases, aortic dissection refers to the blood in the aortic cavity entering the middle layer of the aortic wall through the rupture of the aortic intima to form a dissection, which is usually caused by high blood pressure, tearing of vascular intimal lesions, or pregnancy trauma, or car accident injuries. Aortic dissection has a high mortality rate and is one of the most dangerous emergency diseases in surgery. If it is not diagnosed and treated in time, the mortality rate can reach 55% within 48 hours after onset, and it has become the cause of death in traffic accidents second only to craniocerebral trauma.

[0003] However, for congenital heart defects, minimally invasive surgery is usually used. However, due to the lack of fit between the device and the tissue, a large proportion of patients still experience postoperative bleeding. In addition, minimally invasive surgery for the treatment of aortic dissection rupture is extremely limited. Most minimally invasive surgeries use covered stents to completely block all ruptures. However, since there are many collateral arteries around the entire aorta, excessive blockage will lead to obstruction of collateral blood flow and the risk of paralysis. In addition, the tissues around the aortic dissection rupture are extremely irregular, and ordinary congenital heart occluders are difficult to fit, resulting in the risk of detachment and re-leakage. Summary of the invention

[0004] The purpose of the present invention is to provide a blocking device to address the deficiencies of the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a blocking device, comprising a first plate, a second plate, a waist and a connecting part; wherein the first plate and the second plate are connected through the waist; the first plate is used to be placed on the first side of the part to be blocked; the second plate is used to be placed on the second side of the part to be blocked; the waist passes through the part to be blocked; the connecting part is provided on the first plate and / or the second plate on a side close to the part to be blocked, and the connecting part is used to be fixedly connected to the surrounding tissue of the part to be blocked.

[0006] Furthermore, the first disc body comprises a first frame and a first bluff body circumferentially arranged in the first frame, the first bluff body is used to block the flow of blood; the second disc body comprises a second frame and a second bluff body circumferentially arranged in the second frame, the second bluff body is used to block the flow of blood; the first frame, the second frame and the waist are all mesh structures; the connecting part comprises a first connecting part, a second connecting part and / or a third connecting part and a fourth connecting part; the first connecting part is circumferentially arranged on the side of the first disc body facing the second disc body, or is circumferentially arranged on the side of the second disc body facing the first disc body; the second connecting part is circumferentially arranged on the second disc body The third connection portion is circumferentially arranged on a side of the first disk body facing the second disk body, or is circumferentially arranged on a side of the first disk body facing the second disk body; the first connection portion and the second connection portion are both used to fix and connect the surrounding tissues of the part to be blocked; the third connection portion is circumferentially arranged on a side of the first disk body facing the second disk body, or is circumferentially arranged on a side of the second disk body facing the first disk body; the fourth connection portion is circumferentially arranged on a side of the second disk body facing the first disk body, or is circumferentially arranged on a side of the first disk body facing the second disk body; the third connection portion and the fourth connection portion are used in combination to fix and connect the surrounding tissues of the part to be blocked.

[0007] Furthermore, the circumferential edges of the first framework and the first bluff body are both rolled inward to form a first overlapped edge, the circumferential edges of the second framework and the second bluff body are both rolled inward to form a second overlapped edge, and the first overlapped edge and the second overlapped edge are arranged opposite to each other.

[0008] Further, when the connecting portion includes the first connecting portion, the first connecting portion is circumferentially arranged on a side of the first folded edge close to the second folded edge, or is circumferentially arranged on a side of the second folded edge close to the first folded edge; when the connecting portion includes the second connecting portion, the second connecting portion is circumferentially arranged on a side of the second folded edge close to the first folded edge, or is circumferentially arranged on a side of the first folded edge close to the second folded edge; when the connecting portion includes the first connecting portion and the second connecting portion, the first connecting portion is circumferentially arranged on a side of the first folded edge close to the second folded edge, and the second connecting portion is circumferentially arranged on a side of the second folded edge close to the first folded edge; or the first connecting portion is circumferentially arranged on a side of the second folded edge close to the first folded edge, and the second connecting portion is circumferentially arranged on a side of the first folded edge close to the second folded edge; the first connecting portion and the second connecting portion are arranged relative to and staggered.

[0009] Further, the first connecting portion includes one or more circles of first barbs, and the second connecting portion includes one or more circles of second barbs.

[0010] Further, when the first barbs are multiple circles, the multiple circles of the first barbs are radially spaced, and each circle of the first barbs includes multiple first barbs spaced circumferentially; when the second barbs are multiple circles, the multiple circles of the second barbs are radially spaced, and each circle of the second barbs includes multiple second barbs spaced circumferentially.

[0011] Further, the first barb and the second barb each include a first fixed end, a first connector and a first hook portion, the first fixed end is connected to the first hook portion via the first connector, the first hook portion is arranged outside the first skeleton and / or the second skeleton for fixedly connecting to the surrounding tissue of the site to be blocked, the first fixed end of the first barb is fixedly connected to the first skeleton or the first bluff body, or the first fixed end of the first barb is fixedly connected to the second skeleton or the second bluff body, the first fixed end of the second barb is fixedly connected to the second skeleton or the second bluff body, or the first fixed end of the second barb is fixedly connected to the first skeleton or the first bluff body.

[0012] Further, the first fixing end of the first barb and the first fixing end of the second barb are both flexible planar structures.

[0013] Further, the first fixed end of the first barb is bonded to the first frame or the first bluff body by heat compression, or the first fixed end of the first barb is bonded to the second frame or the second bluff body by heat compression; the first fixed end of the second barb is bonded to the second frame or the second bluff body by heat compression, or the first fixed end of the second barb is bonded to the first frame or the first bluff body by heat compression.

[0014] Further, the first connector of the first barb and / or the first connector of the second barb is a first elastic body.

[0015] Further, when the connecting portion includes the third connecting portion and the fourth connecting portion, the third connecting portion is circumferentially arranged on a side of the first folded edge close to the second folded edge, and the fourth connecting portion is circumferentially arranged on a side of the second folded edge close to the first folded edge; or the third connecting portion is circumferentially arranged on a side of the second folded edge close to the first folded edge, and the fourth connecting portion is circumferentially arranged on a side of the first folded edge close to the second folded edge; the third connecting portion and the fourth connecting portion are arranged relative to each other and used in combination.

[0016] Further, the third connecting portion includes one or more circles of locking rings, and the fourth connecting portion includes one or more circles of third barbs, and the third barbs are used in conjunction with the locking rings.

[0017] Further, when the locking ring has multiple circles, the multiple circles of the locking ring are radially spaced, and each circle of the locking ring includes multiple locking rings spaced circumferentially; when the third barbs have multiple circles, the multiple circles of the third barbs are radially spaced, and each circle of the third barbs includes multiple third barbs spaced circumferentially.

[0018] Furthermore, the locking ring includes a second fixed end, a second connector and a ring body, the second fixed end is connected to the ring body via the second connector, the ring body is arranged outside the first skeleton or the second skeleton, the second fixed end is fixedly connected to the first skeleton or the first bluff body, or the second fixed end is fixedly connected to the second skeleton or the second bluff body.

[0019] Further, the third barb includes a third fixed end, a third connector, a tip portion and a second hook portion, the third fixed end is connected to the tip portion via the third connector, the tip portion is used to pass through the surrounding tissue of the site to be blocked and the ring body, the second hook portion is arranged on the third connector near the tip portion and is used to be clamped on the ring body, the third fixed end is fixedly connected to the second skeleton or the second bluff body, or the third fixed end is fixedly connected to the first skeleton or the first bluff body.

[0020] Furthermore, the second fixing end and the third fixing end are both flexible planar structures.

[0021] Further, the second fixed end is bonded to the first skeleton or the first bluff body by heat compression, and the third fixed end is bonded to the second skeleton or the second bluff body by heat compression; or the third fixed end is bonded to the first skeleton or the first bluff body by heat compression, and the second fixed end is bonded to the second skeleton or the second bluff body by heat compression.

[0022] Furthermore, the second connector and / or the third connector is a second elastic body.

[0023] Furthermore, the intercept of the first folded edge on the first skeleton is smaller than the intercept of the remaining part of the first skeleton, the intercept of the second folded edge on the second skeleton is smaller than the intercept of the remaining part of the second skeleton, and the intercept of the waist is smaller than the intercept of the remaining part of the first skeleton excluding the first folded edge and / or smaller than the intercept of the remaining part of the second skeleton excluding the second folded edge.

[0024] Furthermore, the height of the first folded edge is greater than or equal to 6 times the wire diameter, and the height of the second folded edge is greater than or equal to 6 times the wire diameter.

[0025] Furthermore, a third bluff body for blocking blood flow is arranged on the inner circumference of the waist.

[0026] Further, a first protrusion is provided at the middle of the first disk body, the first protrusion protrudes in a direction away from the second disk body, and a second protrusion is provided at the middle of the second disk body, the second protrusion protrudes in a direction away from the first disk body.

[0027] Furthermore, a first inner concave surface is disposed inside the first protruding portion, and a second inner concave surface is disposed inside the second protruding portion, and the first inner concave surface and the second inner concave surface are disposed opposite to each other.

[0028] Furthermore, a connecting rivet head is provided in the middle of the second frame.

[0029] Furthermore, the first plate body, the second plate body and the waist are all made of elastic material and / or memory material.

[0030] Furthermore, the first tray body, the second tray body and the waist are all made of degradable materials.

[0031] Furthermore, the site to be occluded includes aortic dissection, atrial septal defect, patent foramen ovale defect, ventricular septal defect and / or patent ductus arteriosus defect.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The blocking device of the present invention is provided with a first disc, a second disc, a waist and a connecting part. The first disc is arranged on the first side of the part to be blocked, and the second disc is arranged on the second side of the part to be blocked, and the connecting part is used to fix the surrounding tissues of the part to be blocked, so that the blocking device can accurately block the part to be blocked, and can make the first disc, the second disc and the waist fit well on the surrounding tissue walls of the part to be blocked, and can prevent the blocking device from falling off, and can prevent excessive blocking by using the blocking device, so as to prevent the blood flow of the collateral vessels of the part to be blocked from being blocked and avoid paralysis.

[0034] 2. The blocking device of the present invention is provided with a first overlapped edge and a second overlapped edge, which can increase the contact area and clamping force between the blocking device and the surrounding tissue of the part to be blocked.

[0035] 3. The first connecting portion of the blocking device of the present invention includes one or more circles of first barbs, and the second connecting portion includes one or more circles of second barbs, which can further facilitate the connection of the blocking device to the surrounding tissue of the part to be blocked, and the connection has good stability and reliability.

[0036] 4. The first fixed end of the first barb, the first fixed end of the second barb, the second fixed end and the third fixed end of the blocking device of the present invention are all flexible planar structures, which can increase the contact area, further improve the stability and reliability of the connection between the first barb, the second barb and the third barb and the locking ring to the corresponding skeleton and / or the baffle body, and can meet actual needs.

[0037] 5. The first connector of the first barb, the first connector of the second barb, the second connector and / or the third connector of the occluding device of the present invention are second elastic bodies, which can reduce the pulling force of the first barb, the second barb, the second hook part and the locking ring on the surrounding tissues of the part to be blocked, so as to better protect the surrounding tissues of the part to be blocked and prevent them from being damaged.

[0038] 6. The intercept of the first folded edge on the first frame of the occluding device of the present invention is smaller than the intercept of the remaining parts on the first frame, the intercept of the second folded edge on the second frame is smaller than the intercept of the remaining parts on the second frame, and the intercept of the waist is smaller than the intercept of the remaining parts of the first frame excluding the first folded edge and / or smaller than the intercept of the remaining parts of the second frame excluding the second folded edge. The hardness of the first folded edge, the second folded edge and the waist can be improved, thereby effectively increasing the supporting force of the first frame, the second frame and the waist, and can improve the ability of the first frame, the second frame and the waist to adapt to different tissues.

[0039] 7. The first disc of the blocking device of the present invention is provided with a first protrusion, and the second disc is provided with a second protrusion, which can form a clamping force and prevent the first disc and the second disc from collapsing and prevent the edge positions from warping.

[0040] 8. A first inner concave surface is arranged inside the first raised portion of the blocking device of the present invention, and a second inner concave surface is arranged inside the second raised portion. The first inner concave surface and the second inner concave surface are arranged opposite to each other, which can effectively enhance the radial supporting force of the blocking device.

[0041] 9. The first plate body, the second plate body and the waist of the blocking device of the present invention are all made of elastic material and / or memory material, which can be easily compressed and / or restored, and is easy to use.

[0042] 10. The first disc body, the second disc body and the waist part of the blocking device of the present invention are all made of degradable materials, which can effectively achieve biodegradation of the blocking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A cross-sectional schematic diagram of a specific embodiment of the blocking device of the present invention is shown;

[0044] Figure 2 A cross-sectional schematic diagram showing another specific embodiment of the blocking device of the present invention;

[0045] Figure 3 A schematic diagram showing the unfolding of the mesh structure of a specific embodiment of the first frame, the second fixing member, the waist, the first folded edge, and the second folded edge of the blocking device of the present invention is shown;

[0046] Figure 4 A structural schematic diagram showing a specific embodiment of the plugging device of the present invention in which the first connecting portion and the first bluff body are fixedly connected, and the second connecting portion and the second bluff body are fixedly connected;

[0047] Figure 5 A schematic top view of a specific embodiment of the plugging device of the present invention showing a first barb and / or a second barb fixedly connected to a first bluff body or a second bluff body;

[0048] Figure 6 A schematic side view of a specific embodiment of the plugging device of the present invention showing a first barb and / or a second barb fixedly connected to a first bluff body or a second bluff body;

[0049] Figure 7 A schematic top view of another specific embodiment of the plugging device of the present invention in which the first barb and / or the second barb are fixedly connected to the first bluff body or the second bluff body;

[0050] Figure 8 A side view schematic diagram showing another specific embodiment of the plugging device of the present invention in which the first barb and / or the second barb are fixedly connected to the first bluff body or the second bluff body;

[0051] Fig. 9 A schematic structural diagram of a specific embodiment of the first barb or the second barb of the blocking device of the present invention is shown;

[0052] Fig.10 A schematic structural diagram showing another specific embodiment of the first barb or the second barb of the blocking device of the present invention;

[0053] Fig.11 A schematic structural diagram showing a specific embodiment of the third barb of the blocking device of the present invention used in conjunction with a locking ring;

[0054] Fig.12 A schematic structural diagram of a specific embodiment of the present invention is shown in which the blocking device is used to fill the breach through the waist;

[0055] Fig.13 A schematic structural diagram of a specific embodiment of the occlusion device of the present invention in which the first barb and the second barb are hooked on the surrounding tissue of the aortic dissection rupture is shown;

[0056] Fig.14 A schematic structural diagram of a specific embodiment of the present invention is shown in which the third barb of the occlusion device passes through the surrounding tissue of the aortic dissection rupture and is locked together with the locking ring;

[0057] Fig.15 A schematic structural diagram of a specific embodiment of forming an atrial septal defect and / or a ventricular septal defect on a heart is shown;

[0058] Fig.16 A schematic structural diagram of a specific embodiment of forming a patent foramen ovale defect and / or a ventricular septal defect on the heart is shown;

[0059] Fig.17 A schematic structural diagram of a specific embodiment of the occlusion device of the present invention for occluding atrial septal defect is shown;

[0060] Fig.18 A schematic structural diagram of a specific embodiment of the occlusion device of the present invention for occluding a patent foramen ovale defect is shown;

[0061] Fig.19 A structural schematic diagram of a specific embodiment of the occlusion device of the present invention for occluding ventricular septal defect is shown.

[0062] Among them, A-site to be blocked; A1-aortic dissection rupture; A2-atrial septal defect; A3-patent foramen ovale defect; A4-ventricular septal defect; B-surrounding tissue; 10-first disc; 101-first skeleton; 102-first dam body; 103-first convex part; 104-first inner concave surface; 20-second disc; 201-second skeleton; 202-second dam body; 203-second convex part; 204-second inner concave surface; 30-waist; 40-first connecting part; 401-first barb; 50-second connecting part; 501-second barb; 60-third connecting part Connecting part; 601-second fixed end; 602-second connector; 603-ring body; 70-fourth connecting part; 701-third fixed end; 702-third connector; 703-tip part; 704-second hook part; 90-first overlapped edge; 100-second overlapped edge; 110-first fixed end; 120-first connector; 130-first hook part; 140-third blocking body; 150-connecting rivet head; 160-true cavity; 170-false cavity; 180-right atrium; 190-left atrium; 200-right ventricle; 210-left ventricle; 220-atrial septum; 230-ventricular septum. DETAILED DESCRIPTION

[0063] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0064] The directional terms such as "inner", "outer", "circumferential", "axial" etc. mentioned in the present invention are only used for reference to the drawings. Therefore, the directional terms used are used to explain and understand the present invention, but not to limit the present invention.

[0065] like Figures 1 to 3 As shown, the blocking device of the present invention comprises: a first plate body 10, a second plate body 20, a waist portion 30 and a connecting portion.

[0066] The first tray body 10 and the second tray body 20 are connected via a waist portion 30 .

[0067] The first tray 10 is used to be placed on the first side of the site A to be blocked.

[0068] The second tray 20 is used to be placed on the second side of the part to be blocked A. The second side of the part to be blocked A is arranged opposite to the first side of the part to be blocked A.

[0069] The waist portion 30 passes through the area A to be blocked.

[0070] A connecting portion is provided on one side of the first tray 10 and / or the second tray 20 close to the site A to be blocked, and the connecting portion is used to be fixedly connected to the surrounding tissue B of the site A to be blocked.

[0071] Among them, the first plate body 10 is set on the first side of the part A to be blocked, and the second plate body 20 is set on the second side of the part A to be blocked, and the connecting part is used to fix the surrounding tissue B of the part A to be blocked, so that the blocking device can accurately block the part A to be blocked, and can make the first plate body 10, the second plate body 20 and the waist 30 fit well on the surrounding tissue wall of the part A to be blocked, and can prevent the blocking device from falling off, and use the blocking device to prevent excessive blocking, so as to prevent the blood flow of the collateral vessels of the part to be blocked from being blocked and avoid paralysis.

[0072] In a specific embodiment, the first disk body 10 includes a disk-shaped first frame 101 and a first bluff body 102 circumferentially disposed within the first frame 101. The first bluff body 102 is used to block the flow of blood.

[0073] The second disk body 20 comprises a disk-shaped second frame 201 and a second bluff body 202 circumferentially arranged in the second frame 201. The second bluff body 202 is used for blocking the flow of blood.

[0074] The first frame 101 , the second frame 201 and the waist 30 are all mesh structures. The first frame 101 and the second frame 201 are connected by the waist 30 .

[0075] The connection portion includes a first connection portion 40 , a second connection portion 50 and / or a third connection portion 60 and a fourth connection portion 70 .

[0076] The first connection portion 40 is circumferentially disposed on a side of the first plate body 10 facing the second plate body 20 , or circumferentially disposed on a side of the second plate body 20 facing the first plate body 10 .

[0077] The second connection portion 50 is circumferentially disposed on a side of the second plate body 20 facing the first plate body 10 , or circumferentially disposed on a side of the first plate body 10 facing the second plate body 20 .

[0078] The first connection portion 40 and the second connection portion 50 are both used to fix and connect the surrounding tissue B of the area A to be blocked.

[0079] The third connection portion 60 is circumferentially disposed on a side of the first plate body 10 facing the second plate body 20 , or circumferentially disposed on a side of the second plate body 20 facing the first plate body 10 .

[0080] The fourth connection portion 70 is circumferentially disposed on a side of the second plate body 20 facing the first plate body 10 , or circumferentially disposed on a side of the first plate body 10 facing the second plate body 20 .

[0081] The third connection part 60 and the fourth connection part 70 are used together to fix and connect the surrounding tissue B of the part A to be blocked.

[0082] Among them, the connection part is used to connect the surrounding tissue B of the part to be blocked A, so that the blocking device can accurately block the part to be blocked A, and the first plate body 10, the second plate body 20 and the waist 30 can be well fitted with the surrounding tissue wall of the part to be blocked A, and at the same time, the blocking device can be prevented from falling, thereby preventing leakage in the part to be blocked A. In addition, the blocking device can prevent excessive blocking, thereby preventing blood flow in the collateral vessels from being blocked and avoiding paralysis.

[0083] In a specific embodiment, Figure 1 , Figure 2 , Figure 4 , Fig.13 As shown, the circumferential edges of the first frame 101 and the first bluff body 102 are both rolled inward to form a first overlapped edge 90. The circumferential edges of the second frame 201 and the second bluff body 202 are both rolled inward to form a second overlapped edge 100. The first overlapped edge 90 and the second overlapped edge 100 are arranged opposite to each other. The first overlapped edge 90 and / or the second overlapped edge 100 can increase the contact area and clamping force between the occluding device and the surrounding tissue B of the part A to be occluded.

[0084] In a specific embodiment, Figure 1 , Figure 2 , Figure 4 , Fig.13 As shown, when the connecting portion includes the first connecting portion 40 , the first connecting portion 40 is circumferentially disposed on a side of the first folded edge 90 close to the second folded edge 100 , or circumferentially disposed on a side of the second folded edge 100 close to the first folded edge 90 .

[0085] When the connecting portion includes the second connecting portion 50 , the second connecting portion 50 is circumferentially disposed on a side of the second overlapped edge 100 close to the first overlapped edge 90 , or circumferentially disposed on a side of the first overlapped edge 90 close to the second overlapped edge 100 .

[0086] When the connecting portion includes the first connecting portion 40 and the second connecting portion 50, the first connecting portion 40 is circumferentially arranged on the first folded edge 90 on one side close to the second folded edge 100, and the second connecting portion 50 is circumferentially arranged on the second folded edge 100 on one side close to the first folded edge 90; or the first connecting portion 40 is circumferentially arranged on the second folded edge 100 on one side close to the first folded edge 90, and the second connecting portion 50 is circumferentially arranged on the first folded edge 90 on one side close to the second folded edge 100. The first connecting portion 40 and the second connecting portion 50 are arranged oppositely and staggered.

[0087] Among them, using the first connecting part 40 and / or the second connecting part 50 can facilitate the connection of the surrounding tissue B of the part to be blocked A, and facilitate the blocking device to accurately block the part to be blocked A. At the same time, it can facilitate the blocking device to fit well with the surrounding tissue wall of the part to be blocked A to prevent the blocking device from falling off.

[0088] In a specific embodiment, Figures 5 to 8 As shown, the first connection part 40 includes one or more circles of first barbs 401. The second connection part 50 includes one or more circles of second barbs 501. Among them, using one or more circles of first barbs 401 and / or one or more circles of second barbs 501 can further facilitate the connection of the occluding device to the surrounding tissue B of the part A to be occluded, and the connection has good stability and reliability.

[0089] In a specific embodiment, Figure 7 , Figure 8 As shown, when the first barb 401 is a plurality of circles, the plurality of circles of the first barb 401 are arranged at radial intervals, and each circle of the first barb 401 includes a plurality of first barbs 401 arranged at circumferential intervals. When the second barb 501 is a plurality of circles, the plurality of circles of the second barb 501 are arranged at radial intervals, and each circle of the second barb 501 includes a plurality of second barbs 501 arranged at circumferential intervals. Among them, by using a plurality of circles of the first barb 401 and / or a plurality of circles of the second barb 501, the stability and reliability of the occlusion device in connecting the surrounding tissue B of the part A to be occluded can be further improved.

[0090] In a specific embodiment, Figures 4 to 10 As shown, Fig.13As shown, the first barb 401 and the second barb 501 both include a first fixed end 110, a first connector 120 and a first hook portion 130. The first fixed end 110 is connected to the first hook portion 130 through the first connector 120. The first hook portion 130 is arranged outside the first skeleton 101 and / or the second skeleton 201 for fixedly connecting the surrounding tissue B of the part A to be blocked. The first fixed end 110 of the first barb 401 is fixedly connected to the first skeleton 101 or the first bluff body 102, or the first fixed end 110 of the first barb 401 is fixedly connected to the second skeleton 201 or the second bluff body 202. The first fixed end 110 of the second barb 501 is fixedly connected to the second skeleton 201 or the second bluff body 202, or the first fixed end 110 of the second barb 501 is fixedly connected to the first skeleton 101 or the first bluff body 102. Among them, the use of the first fixed end 110 can improve the stability and reliability of the first barb 401 and / or the second barb 501 connecting to the corresponding frame and / or the bluff body, and the structure is simple and easy to use. In addition, since the first hook part 130 has a relatively sharp thorn head, it is convenient to pass through the surrounding tissue B of the part A to be blocked and the first hook part 130 is convenient to hook on the surrounding tissue B of the part A to be blocked, and the stability and reliability are good.

[0091] In a specific embodiment, Figures 4 to 10 As shown, Fig.13 As shown, the first fixed end 110 of the first barb 401 and the first fixed end 110 of the second barb 501 are both flexible planar structures, which can increase the contact area, further improve the stability and reliability of the first barb 401 and / or the second barb 501 connecting the corresponding skeleton and / or the bluff body, and can meet actual needs.

[0092] In a specific embodiment, Figures 4 to 8 As shown, Fig.13 As shown, the first fixed end 110 of the first barb 401 is bonded to the first frame 101 or the first bluff body 102 by hot pressing, or the first fixed end 110 of the first barb 401 is bonded to the second frame 201 or the second bluff body 202 by hot pressing, which has good stability, good reliability, and is convenient and efficient. The first fixed end 110 of the second barb 501 is bonded to the second frame 201 or the second bluff body 202 by hot pressing, or the first fixed end 110 of the second barb 501 is bonded to the first frame 101 or the first bluff body 102 by hot pressing, which has good stability, good reliability, and is convenient and efficient. Among them, when the first fixed end 110 of the first barb 401 is connected to the first bluff body 102 or the second bluff body 202, the first connector 120 needs to pass through the first frame 101 or the second frame 201, which has a simple structure and is easy to use.

[0093] In a specific embodiment, Fig.10 As shown, the first connector 120 of the first barb 401 and / or the first connector 120 of the second barb 501 is a first elastomer. When the first barb 401 and / or the second barb 501 are hooked on the peripheral tissue B of the part A to be blocked, due to the movement of the peripheral tissue B of the part A to be blocked, the first elastomer can slow down the pulling force of the first hook portion 130 on the peripheral tissue B of the part A to be blocked, thereby better protecting the peripheral tissue B of the part A to be blocked and preventing it from being damaged.

[0094] In a specific embodiment, Fig.10 As shown, the first elastic body is a spring, which has a simple structure and is easy to use.

[0095] In a specific embodiment, Figure 1 , Fig.11 , Fig.14 As shown, when the connection part includes the third connection part 60 and the fourth connection part 70, the third connection part 60 is circumferentially arranged on the first folded edge 90 on one side close to the second folded edge 100, and the fourth connection part 70 is circumferentially arranged on the second folded edge 100 on one side close to the first folded edge 90; or the third connection part 60 is circumferentially arranged on the second folded edge 100 on one side close to the first folded edge 90, and the fourth connection part 70 is circumferentially arranged on the first folded edge 90 on one side close to the second folded edge 100. The third connection part 60 and the fourth connection part 70 are arranged opposite to each other and used in combination. Among them, the use of the third connection part 60 and the fourth connection part 70 can improve the stability and reliability of the occlusion device connecting the surrounding tissue B of the part A to be occluded, and the structure is simple and easy to use.

[0096] In a specific embodiment, the third connection part 60 includes one or more circles of locking rings, and the fourth connection part 70 includes one or more circles of third barbs, which are used in conjunction with the locking rings. The third barbs and the locking rings are used in conjunction to improve the stability and reliability of the occluding device connecting the surrounding tissue B of the part to be occluded A, and are convenient and efficient.

[0097] In a specific embodiment, when the locking ring is multiple circles, the multiple circles of locking rings are arranged at radial intervals, and each circle of locking rings includes multiple locking rings arranged at circumferential intervals. When the third barbs are multiple circles, the multiple circles of third barbs are arranged at radial intervals, and each circle of third barbs includes multiple third barbs arranged at circumferential intervals. Among them, the use of multiple circles of locking rings and multiple circles of third barbs can further improve the stability and reliability of the occlusion device connecting the surrounding tissue B of the part A to be occluded.

[0098] In a specific embodiment, Fig.11 , Fig.14As shown, the lock ring includes a second fixed end 601, a second connector 602 and a ring body 603. The second fixed end 601 is connected to the ring body 603 through the second connector 602, and the ring body 603 is arranged outside the first frame 101 or the second frame 102. The second fixed end 601 is fixedly connected to the first frame 101 or the first bluff body 102, or the second fixed end 601 is fixedly connected to the second frame 201 or the second bluff body 202. When the second fixed end 601 is connected to the first bluff body 102 or the second bluff body 202, the second connector 602 needs to pass through the first frame 101 or the second frame 201, which has a simple structure and is easy to use.

[0099] In a specific embodiment, Fig.11 , Fig.14 As shown, the third barb includes a third fixed end 701, a third connector 702, a tip 703 and a second hook 704. The third fixed end 701 is connected to the tip 703 through the third connector 702, and the tip 703 is used to pass through the surrounding tissue B and the ring body 603 of the part A to be blocked. The second hook 704 is arranged on the third connector 702 near the tip 703 and is used to be clamped on the ring body 603. The third fixed end 701 is fixedly connected to the second skeleton 201 or the second bluff body 202, or the third fixed end 701 is fixedly connected to the first skeleton 101 or the first bluff body 102. Among them, the tip 703 is used to pass through the surrounding tissue B and the ring body 603 of the part A to be blocked, and the second hook 704 is used to be clamped on the ring body 603, so that the third barb can be locked together with the locking ring, thereby ensuring that the first disc body 10 and the second disc body 20 are locked and the tissue is tightened, which is convenient and efficient, and has good stability and reliability.

[0100] In a specific embodiment, Fig.11 , Fig.14 As shown, the second fixing end 601 and the third fixing end 701 are both flexible planar structures, which can increase the contact area, further improve the stability and reliability of the locking ring and / or the third barb connecting the corresponding skeleton and / or the bluff body, and can meet actual needs.

[0101] In a specific embodiment, the second fixed end 601 is bonded to the first skeleton 101 or the first bluff body 102 by hot pressing, and the third fixed end 701 is bonded to the second skeleton 201 or the second bluff body 202 by hot pressing; or the third fixed end 701 is bonded to the first skeleton 101 or the first bluff body 102 by hot pressing, and the second fixed end 601 is bonded to the second skeleton 201 or the second bluff body 202 by hot pressing, which has good stability, good reliability, convenience and efficiency.

[0102] In a specific embodiment, the second connector 602 and / or the third connector 702 is a second elastomer. When the tip portion 703 of the third barb passes through the surrounding tissue B of the part A to be blocked and the second hook portion 704 is clamped on the ring body 603, due to the movement of the surrounding tissue B of the part A to be blocked, the second elastomer can slow down the pulling force of the second hook portion 704 and the ring body 603 on the surrounding tissue B of the part A to be blocked, thereby better protecting the surrounding tissue B of the part A to be blocked and preventing it from being damaged.

[0103] In a specific embodiment, Figure 3 As shown, the intercept of the first folded edge 90 on the first skeleton 101 is smaller than the intercept of the rest of the first skeleton 101, which can improve the hardness of the first folded edge 90, thereby effectively increasing the supporting force of the first skeleton 101 and improving the ability of the first skeleton 101 to adapt to different tissues.

[0104] In a specific embodiment, Figure 3 As shown, the intercept of the second folded edge 100 on the second skeleton 201 is smaller than the intercept of the rest of the second skeleton 201, which can improve the hardness of the second folded edge 100, thereby effectively increasing the supporting force of the second skeleton 201 and improving the ability of the second skeleton 201 to adapt to different tissues.

[0105] In a specific embodiment, Figure 3 As shown, the intercept of the waist 30 is smaller than the intercept of the remaining part of the first frame 101 except the first folded edge 90 and / or smaller than the intercept of the remaining part of the second frame 201 except the second folded edge 100, which can improve the hardness of the waist 30, thereby effectively increasing the supporting force of the waist 30 and improving the ability of the occlusion device to adapt to different tissues.

[0106] In a specific embodiment, Figure 2 As shown, the height H1 of the first overlapped edge 90 is greater than or equal to 6 times the wire diameter, which can further improve the hardness of the first overlapped edge 90 and further improve the ability of the first skeleton 101 to adapt to different tissues.

[0107] In a specific embodiment, Figure 2 As shown, the height H2 of the second folded edge 100 is greater than or equal to 6 times the wire diameter, which can further improve the hardness of the second folded edge 100 and the ability of the second skeleton 201 to adapt to different tissues.

[0108] In a specific embodiment, Figure 1 , Figure 2As shown, the inner circumference of the waist 30 is provided with a third blocking body 140 for blocking blood flow, which can effectively prevent blood on the first skeleton 101 side of the peripheral tissue B of the part A to be blocked from flowing toward the second skeleton 201 side, and / or effectively prevent blood on the second skeleton 201 side of the peripheral tissue B of the part A to be blocked from flowing toward the first skeleton 101 side.

[0109] In a specific embodiment, Figure 1 , Figure 2 As shown, a first protrusion 103 is provided in the middle of the first tray body 10. The first protrusion 103 protrudes in a direction away from the second tray body 20, which can form a clamping force and prevent the first tray body 10 from collapsing and preventing the edge from warping.

[0110] In a specific embodiment, Figure 1 , Figure 2 As shown, a second protrusion 203 is provided in the middle of the second plate body 20. The second protrusion 203 protrudes in a direction away from the first plate body 10, which can form a clamping force and prevent the first plate body 10 from collapsing and preventing the edge from warping.

[0111] In a specific embodiment, Figure 1 , Figure 2 As shown, the first protrusion 103 is provided with a first inner concave surface 104, and the second protrusion 203 is provided with a second inner concave surface 204. The first inner concave surface 104 and the second inner concave surface 204 are arranged opposite to each other. The first inner concave surface 104 and the second inner concave surface 204 can effectively enhance the radial support force of the plugging device.

[0112] In a specific embodiment, Figure 1 , Figure 2 As shown, a connecting rivet head 150 is provided in the middle of the second skeleton 201, which can be used to connect the conveying device.

[0113] In a specific embodiment, Figure 1 , Figure 2 , Fig.12 As shown, the first plate body 10, the second plate body 20 and the waist 30 are all made of elastic material and / or memory material, which can be easily compressed and / or restored to shape and are easy to use.

[0114] In a specific embodiment, Figure 1 , Figure 2 , Fig.12As shown, the first tray body 10, the second tray body 20 and the waist portion 30 are all made of degradable materials, including degradable polymer materials (such as polylactic acid, polydioxanone and / or polycaprolactone) and / or degradable metal materials (such as degradable magnesium-based, zinc-based and / or iron-based materials), which can achieve biodegradation of the first tray body 10, the second tray body 20 and the waist portion 30.

[0115] When the present invention is used, it can block the aortic dissection rupture A1, block the atrial septal defect A2, block the patent foramen ovale defect A3 and / or the ventricular septal defect A4.

[0116] The aortic dissection includes a true lumen 160 and a false lumen 170. The circumferential connection between the true lumen 160 and the false lumen 170 forms an aortic dissection rupture A1. The occluding device is filled on the aortic dissection rupture A1 through the waist 30 (such as Fig.12 As shown), the first tray body 10 and the second tray body 20 are respectively arranged in the true cavity 160 and the false cavity 170 (the first tray body 10 and the second tray body 20 can also be respectively arranged in the false cavity 170 and the true cavity 160). Since the occluding device has a clamping force on the peripheral tissue B of the aortic dissection rupture A1, the first barb 401 and / or the second barb 501 are used to pierce and hook on the peripheral tissue B of the aortic dissection rupture A1, and / or the tip 703 is used to pass through the peripheral tissue B of the aortic dissection rupture A1 and the ring body 603, and the second hook portion 704 is used to clamp on the ring body 603 to achieve locking, which can achieve a precise occlusion effect, and can make the first disc body 10, the second disc body 20 and the waist 30 fit well on the peripheral tissue wall of the aortic dissection rupture A1, and at the same time can prevent the occluding device from falling off, and the occluding device can prevent excessive occlusion, thereby preventing the blood flow of the collateral vessels of the aortic dissection from being blocked and avoiding paralysis.

[0117] The structure of the heart includes the right atrium 180, the left atrium 190, the right ventricle 200 and the left ventricle 210. The atrial septum 220 is formed between the left atrium 190 and the right atrium 180, and the ventricular septum 230 is formed between the left ventricle 210 and the right ventricle 200. The atrial septal defect A2 is formed in the middle of the atrial septum 220, the patent foramen ovale defect A3 is formed in the oval fossa in the middle of the atrial septum 220, and the ventricular septal defect A4 (such as Fig.15 , Fig.16 As shown in Figures 17 to 19As shown, during the implantation process, the first plate 10 and the second plate 20 of the occluding device are clamped on both sides of the atrial septum 220 and / or the ventricular septum 230, respectively. Since the occluding device has a clamping force on the surrounding tissue B of the atrial septal defect A2, the patent foramen ovale defect A3 and / or the ventricular septal defect A4, the first barb 401 and / or the second barb 501 are used to pierce and hook on the surrounding tissue B of the atrial septal defect A2, the patent foramen ovale defect A3 and / or the ventricular septal defect A4, and / or Or the tip 703 is used to penetrate the surrounding tissue B of the atrial septal defect A2, the patent foramen ovale defect A3 and / or the ventricular septal defect A4 and the ring body 603, and the second hook part 704 is used to clamp on the ring body 603 to achieve locking, so that the disk surface of the first disk body 10 and the disk surface of the second disk body 20 are more firmly attached to the tissue wall and will not fall off, so that the blocking device can block the atrial septal defect A2, the patent foramen ovale defect A3 and / or the ventricular septal defect A4. And the blocking device can prevent excessive blocking, thereby preventing the blood flow of the collateral vessels of the heart from being blocked and avoiding paralysis.

[0118] The protection scope of the present invention is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the scope and spirit of the present invention. If these changes and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these changes and modifications.

Claims

1. A blocking device, characterized in that: include: A first plate body (10), a second plate body (20), a waist portion (30) and a connecting portion; wherein, The first plate body (10) and the second plate body (20) are connected via the waist (30); The first disk (10) is used to be placed on a first side of the part (A) to be blocked; The second disk (20) is used to be placed on the second side of the part to be blocked (A); The waist (30) passes through the part to be blocked (A); The connecting portion is provided on the first disk body (10) and / or the second disk body (20) at a side close to the part to be blocked (A), and the connecting portion is used to be fixedly connected to the surrounding tissue (B) of the part to be blocked (A); The connecting portion comprises a third connecting portion (60) and a fourth connecting portion (70); the third connecting portion (60) is circumferentially arranged on a side of the first disk body (10) facing the second disk body (20), or circumferentially arranged on a side of the second disk body facing the first disk body (10); the fourth connecting portion (70) is circumferentially arranged on a side of the second disk body (20) facing the first disk body (10), or circumferentially arranged on a side of the first disk body (10) facing the second disk body (20); the third connecting portion (60) and the fourth connecting portion (70) are used in conjunction with each other to fix and connect the surrounding tissue (B) of the part to be blocked (A); The first disk body (10) comprises a first frame (101) and a first bluff body (102) circumferentially arranged inside the first frame (101), wherein the first bluff body (102) is used for blocking the flow of blood; The second disk body (20) comprises a second frame (201) and a second bluff body (202) circumferentially arranged inside the second frame (201), wherein the second bluff body (202) is used for blocking the flow of blood; The circumferential edges of the first framework (101) and the first bluff body (102) are both rolled inward to form a first folded edge (90), and the circumferential edges of the second framework (201) and the second bluff body (202) are both rolled inward to form a second folded edge (100), and the first folded edge (90) and the second folded edge (100) are arranged opposite to each other; When the connecting portion includes the third connecting portion (60) and the fourth connecting portion (70), the third connecting portion (60) is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100), and the fourth connecting portion (70) is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90); or the third connecting portion (60) is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90), and the fourth connecting portion (70) is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100); the third connecting portion (60) and the fourth connecting portion (70) are arranged relative to each other and used in combination; The third connecting portion (60) includes one or more circles of locking rings, and the fourth connecting portion (70) includes one or more circles of third barbs, and the third barbs are used in conjunction with the locking ring; the locking ring includes a second fixed end (601), a second connecting body (602), and a ring body (603), the second fixed end (601) is connected to the ring body (603) through the second connecting body (602), and the ring body (603) is arranged outside the first skeleton (101) or the second skeleton (201), the second fixed end (601) is fixedly connected to the first skeleton (101) or the first bluff body (102), or the second fixed end (601) is fixedly connected to the second skeleton (201) or the second bluff body (202); the third barbs The invention comprises a third fixed end (701), a third connector (702), a tip portion (703) and a second hook portion (704), wherein the third fixed end (701) is connected to the tip portion via the third connector (702), the tip portion (703) is used to pass through the surrounding tissue (B) of the part to be blocked (A) and the ring body (603), the second hook portion (704) is arranged on the third connector (702) at a position close to the tip portion (703) and is used to be clamped on the ring body (603), the third fixed end (701) is fixedly connected to the second skeleton (201) or the second bluff body (202), or the third fixed end (701) is fixedly connected to the first skeleton (101) or the first bluff body (102).

2. The blocking device according to claim 1, characterized in that: The first frame (101), the second frame (201) and the waist (30) are all mesh structures; The connecting portion comprises a first connecting portion (40) and a second connecting portion (50); The first connecting portion (40) is circumferentially arranged on a side of the first disk body (10) facing the second disk body (20), or is circumferentially arranged on a side of the second disk body (20) facing the first disk body (10); The second connecting portion (50) is circumferentially arranged on a side of the second disk body (20) facing the first disk body (10), or is circumferentially arranged on a side of the first disk body (10) facing the second disk body (20); The first connecting portion (40) and the second connecting portion (50) are both used to fix and connect the surrounding tissue (B) of the part to be blocked (A).

3. The blocking device according to claim 2, characterized in that: When the connecting portion includes the first connecting portion (40), the first connecting portion (40) is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100), or is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90); When the connecting portion includes the second connecting portion (50), the second connecting portion (50) is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90), or is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100); When the connecting portion includes the first connecting portion (40) and the second connecting portion (50), the first connecting portion (40) is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100), and the second connecting portion (50) is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90); or the first connecting portion (40) is circumferentially arranged on a side of the second folded edge (100) close to the first folded edge (90), and the second connecting portion (50) is circumferentially arranged on a side of the first folded edge (90) close to the second folded edge (100); the first connecting portion (40) and the second connecting portion (50) are arranged relative to each other and staggered.

4. The blocking device according to claim 3, characterized in that: The first connection part (40) includes one or more circles of first barbs (401), and the second connection part (50) includes one or more circles of second barbs (501).

5. The blocking device according to claim 4, characterized in that: When the first barbs (401) are multiple circles, the multiple circles of the first barbs (401) are arranged at radial intervals, and each circle of the first barbs (401) includes multiple first barbs (401) arranged at circumferential intervals; when the second barbs (501) are multiple circles, the multiple circles of the second barbs (501) are arranged at radial intervals, and each circle of the second barbs (501) includes multiple second barbs (501) arranged at circumferential intervals.

6. The blocking device according to claim 4, characterized in that: The first barb (401) and the second barb (501) both comprise a first fixed end (110), a first connector (120) and a first hook portion (130); the first fixed end (110) is connected to the first hook portion (130) via the first connector (120); the first hook portion (130) is arranged outside the first skeleton (101) and / or the second skeleton (201) for fixedly connecting the surrounding tissue (B) of the part to be blocked (A); the first fixed end (110) of the first barb (401) is connected to the first connector (120); the first hook portion (130) is arranged outside the first skeleton (101) and / or the second skeleton (201) for fixedly connecting the surrounding tissue (B) of the part to be blocked (A); The first frame (101) or the first bluff body (102) is fixedly connected, or the first fixed end (110) of the first barb (401) is fixedly connected to the second frame (201) or the second bluff body (202), the first fixed end (110) of the second barb (501) is fixedly connected to the second frame (201) or the second bluff body (202), or the first fixed end (110) of the second barb (501) is fixedly connected to the first frame (101) or the first bluff body (102).

7. The blocking device according to claim 6, characterized in that: The first fixed end (110) of the first barb (401) and the first fixed end (110) of the second barb (501) are both flexible planar structures; The first fixed end of the first barb (401) is bonded to the first frame (101) or the first bluff body (102) by heat-compression bonding, or the first fixed end (110) of the first barb (401) is bonded to the second frame (201) or the second bluff body (202) by heat-compression bonding; The first fixed end of the second barb (501) is bonded to the second frame (201) or the second bluff body (202) by heat and pressure bonding, or the first fixed end (110) of the second barb (501) is bonded to the first frame (101) or the first bluff body (102) by heat and pressure bonding.

8. The blocking device according to claim 6, characterized in that: The first connector (120) of the first barb (401) and / or the first connector (120) of the second barb (501) is a first elastic body.

9. The blocking device according to claim 1, characterized in that: When the locking ring has multiple circles, the multiple circles of the locking ring are arranged at radial intervals, and each circle of the locking ring includes multiple locking rings arranged at circumferential intervals. When the third barbs have multiple circles, the multiple circles of the third barbs are arranged at radial intervals, and each circle of the third barbs includes multiple third barbs arranged at circumferential intervals.

10. The blocking device according to claim 1, characterized in that: The second fixed end (601) and the third fixed end (701) are both flexible planar structures; The second fixed end (601) is bonded to the first frame (101) or the first bluff body (102) by heat-compression bonding, and the third fixed end (701) is bonded to the second frame (201) or the second bluff body (202) by heat-compression bonding; Alternatively, the third fixed end (701) is bonded to the first frame (101) or the first bluff body (102) by heat-compression bonding, and the second fixed end (601) is bonded to the second frame (201) or the second bluff body (202) by heat-compression bonding.

11. The blocking device according to claim 1, characterized in that: The second connector (602) and / or the third connector (702) is a second elastic body.

12. The blocking device according to claim 1, characterized in that: The intercept of the first folded edge (90) on the first frame (101) is smaller than the intercept of the remaining part of the first frame (101), the intercept of the second folded edge (100) on the second frame is smaller than the intercept of the remaining part of the second frame (201), and the intercept of the waist (30) is smaller than the intercept of the remaining part of the first frame (101) excluding the first folded edge (90) and / or smaller than the intercept of the remaining part of the second frame (201) excluding the second folded edge (100).

13. The blocking device according to claim 1, characterized in that: The height of the first folded edge (90) is greater than or equal to 6 times the wire diameter, and the height of the second folded edge (100) is greater than or equal to 6 times the wire diameter.

14. The blocking device according to claim 2, characterized in that: A third bluff body (140) for blocking blood flow is arranged in the inner circumference of the waist (30).

15. The blocking device according to claim 2, characterized in that: A first protrusion (103) is provided in the middle of the first disk body (10), and the first protrusion (103) protrudes in a direction away from the second disk body (20); a second protrusion (203) is provided in the middle of the second disk body (20), and the second protrusion (203) protrudes in a direction away from the first disk body (10).

16. The blocking device according to claim 15, characterized in that: A first inner concave surface (104) is arranged inside the first protruding portion (103), and a second inner concave surface (204) is arranged inside the second protruding portion (203), and the first inner concave surface (104) and the second inner concave surface (204) are arranged opposite to each other.

17. The blocking device according to claim 2, characterized in that: A connecting rivet head (150) is provided in the middle of the second frame (201).

18. The blocking device according to claim 2, characterized in that: The first plate body (10), the second plate body (20) and the waist (30) are all made of elastic material and / or memory material.

19. The blocking device according to claim 18, characterized in that: The first plate body (10), the second plate body (20) and the waist part (30) are all made of degradable materials.

20. The blocking device according to claim 1, characterized in that: The site to be occluded (A) includes aortic dissection rupture (A1), atrial septal defect (A2), patent foramen ovale defect (A3), ventricular septal defect (A4) and / or patent ductus arteriosus defect.

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