Blood vessel crevasse plugging device

Abstract

A blood vessel crevasse plugging device is used for plugging a blood vessel crevasse under the operation of an operator. Comprising a first plugging piece, a second plugging piece and a third plugging piece, a second connecting part is arranged on the surface of one side of the second plugging piece; wherein the first plugging piece and the second plugging piece have a storage state and an opening state, the first plugging piece and the second plugging piece can be stored in a sleeve of the operator when being folded to be in the storage state, and the first plugging piece and the second plugging piece are in an umbrella shape when being unfolded to be in the opening state; the first plugging piece and the second plugging piece are close to each other under the control of the operator, so that the first connecting part and the second connecting part are connected in a clamping manner, and a blood vessel crevasse is clamped between the first plugging piece and the second plugging piece.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a blood vessel rupture occluder. Background Art

[0002] Aortic dissection or pseudoaneurysm is the most dangerous aortic rupture disease in aortic aneurysms. Aortic dissection generally refers to the high-pressure blood flow of the artery entering the middle layer of the arterial wall from the tear of the aortic intima, separating the inner and outer layers and expanding along the middle layer to form a "dissection"-like structure of arterial dilatation; aortic pseudoaneurysm refers to the complete rupture of the arterial wall, the blood flowing out of the artery and being wrapped by the surrounding tissues to form a dilatation. In recent years, endovascular stent implantation has been mainly used to treat aortic dissection and pseudoaneurysm. The treatment goal is to isolate the aortic tear, thereby opening the true lumen, occluding the rupture, and forming thrombus in the false lumen.

[0003] The existing aortic dissection or pseudoaneurysm occlusion technology mainly adopts the covered stent occlusion technology. When using this technology to occlude the rupture, it is necessary to cover a relatively long section of the aortic wall without rupture. However, occluding the intercostal artery may lead to paraplegia; in addition, due to the interaction between the two ends of the stent and the arterial wall, proximal retrograde tear occurs in some cases after occlusion, resulting in serious consequences; in some cases, new stent-related tears (SINE) appear during the follow-up process, and a second operation has to be performed. To solve the problem of SINE, some researchers have proposed restrictive stents or extended long-taper stents, which require additional operations, occlude more intercostal arteries, and increase the treatment cost.

[0004] In addition, the patent disclosure text with the authorization publication number of CN201108512Y provides a blood vessel occluder, which includes an umbrella at the front end, a pull rod, a retraction tube movably connected to the pull rod, a pull rod handle fixedly connected to the pull rod, and an umbrella lock installed on the push tube and the pull rod. A locking clip is clamped on the pull rod between the umbrella lock and the pull rod handle. By setting the locking clip to position the umbrella, the structure of the blood vessel occluder is complicated, and at the same time, the release difficulty of the blood vessel occluder is increased. Therefore, there is an urgent need for a blood vessel rupture occluder that can simplify the structure and reduce the operation difficulty of occluding blood vessel rupture. Content of the Utility Model

[0005] In view of the above problems in the prior art, the present application provides a blood vessel rupture occluder that can simplify the structure and reduce the operation difficulty of occluding blood vessel rupture.

[0006] To achieve the above object, a vascular rupture occluder is provided for occluding a vascular rupture under the operation of an operating device; it includes: a first occluding member, on one side surface of which a first connecting portion is provided; a second occluding member, on one side surface of which a second connecting portion is provided; wherein, the first occluding member and the second occluding member have a retracted state and an opened state, when the first occluding member and the second occluding member are folded and in the retracted state, they can be received into the cannula of the operating device, and when the first occluding member and the second occluding member are unfolded and in the opened state, they are in an umbrella shape; the first occluding member and the second occluding member approach under the control of the operating device, so that the first connecting portion and the second connecting portion are snap-connected, and the vascular rupture is clamped between the first occluding member and the second occluding member.

[0007] With the above structure, after the first occluding member and the second occluding member are received into the cannula of the operating device in the retracted state, they can be sent into the blood vessel through the cannula. The first occluding member is released outside the vascular rupture (the side where the vascular rupture faces the outside of the blood vessel), so that the first occluding member is in the opened state. Then the second occluding member is released inside the vascular rupture (the side where the vascular rupture faces the inside of the blood vessel), so that the first occluding member is in the opened state. Finally, the operating device controls the first connecting portion and the second connecting portion to be snap-connected, and the vascular rupture is clamped between the first occluding member and the second occluding member, thereby realizing the occlusion of the vascular rupture. Thus, not only can the structure of the occluder be simplified, and only need to control the snap connection of the first connecting portion and the second connecting portion after release during operation to realize the occlusion of the vascular rupture, thereby reducing the operation steps and lowering the operation difficulty.

[0008] In some embodiments, the first occluding member and the second occluding member are made of medical materials, which mainly refer to medical polymer materials or metal materials, and can be medical stainless steel, cobalt-based alloy, titanium-based alloy, shape memory alloy or precious metal, etc.

[0009] In some embodiments, the first occluding member and the second occluding member can compress their volumes by folding, squeezing, etc., so that after the first occluding member and the second occluding member are in the retracted state, they are received into the cannula, so as to send the first occluding member and the second occluding member to the corresponding position of the vascular rupture through the cannula.

[0010] In some embodiments, the first occluding member and the second occluding member can be covered with a thin layer of PTFE film on the surface or lined with a PTFE film inside to achieve the effect of non-blood leakage.

[0011] In some embodiments, after the first occluding member and the second occluding member are released from the cannula, they can be unfolded under the action of their own elasticity to form an umbrella shape, so as to be in the opened state for occluding the vascular rupture.

[0012] In some embodiments, in the open state, the edge of the first plugging member is bent toward the side where the first connecting portion is provided, and / or, the edge of the second plugging member is bent toward the side where the second connecting portion is provided.

[0013] With the above structure, by bending the edges of the first plugging member and the second plugging member toward the sides where the first connecting portion and the second connecting portion are provided, when the first plugging member and the second plugging member clamp the blood vessel opening in the middle position, the pressure between the edge position and the blood vessel can be increased, thereby improving the sealing performance between the first plugging member, the second plugging member and the blood vessel, and improving the plugging effect on the blood vessel opening.

[0014] In some embodiments, in the open state, the diameter of the first plugging member is larger than the diameter of the second plugging member.

[0015] In some embodiments, the diameter of the first plugging member outside the blood vessel opening is larger than the diameter of the second plugging member inside the blood vessel opening.

[0016] With the above structure, by making the diameter of the first plugging member larger than that of the second plugging member, after the first plugging member and the second plugging member clamp and plug the blood vessel opening, the edge of the second plugging member can be located at a position on the side of the edge of the first plugging member toward the center, so that the clamping of the blood vessel opening by the first plugging member and the second plugging member can be more stable, and further the plugging effect on the blood vessel opening can be improved.

[0017] In some embodiments, the first connecting portion is located at the central position of the first plugging member, the second connecting portion is located at the central position of the second plugging member, and the first connecting portion and the second connecting portion are respectively located on the opposite surfaces of the first plugging member and the second plugging member.

[0018] With the above structure, by making the first connecting portion and the second connecting portion respectively located at the central positions of the first plugging member and the second plugging member, when the first plugging member and the second plugging member plug the blood vessel opening, they can be snap-connected at the central position, so that the pressure between the edge positions of the first plugging member and the second plugging member and the blood vessel can be more uniform, and the connection between the first plugging member and the second plugging member can be more stable, thereby improving the plugging effect on the blood vessel opening.

[0019] In some embodiments, the first connecting portion is columnar, the second connecting portion is hole-shaped, and the first connecting portion is inserted into the second connecting portion and extends to a predetermined position for clamping.

[0020] With the above structure, by making the first connecting portion columnar and the second connecting portion hole-shaped, after the first connecting portion is inserted into the second connecting portion, the first connecting portion and the second connecting portion can guide each other so as to perform snap connection after reaching a predetermined position.

[0021] In some embodiments, a claw-shaped protrusion is provided on the outer peripheral surface of the first connecting portion, and a clamping groove is provided on the inner peripheral surface of the second connecting portion. The first connecting portion is inserted into the second connecting portion and slides along the axial direction of the first connecting portion, so that after the claw slides into the clamping groove, the claw is snap-connected with the clamping groove to prevent the first plugging member from separating from the second plugging member.

[0022] In some embodiments, the first connecting portion and the second connecting portion are snap-connected at multiple positions along the extending direction of the first connecting portion and the second connecting portion. Specifically, a plurality of claws and / or clamping grooves are provided along the axial direction of the first connecting portion and the second connecting portion, so that the first connecting portion and the second connecting portion can be snap-connected at multiple positions.

[0023] With the above structure, by snap-connecting the first connecting portion and the second connecting portion at different positions, the distance between the first plugging member and the second plugging member can be adjusted, and further the clamping force after the first plugging member and the second plugging member clamp the blood vessel rupture in the middle can be adjusted to ensure the plugging effect. In addition, the position where the first connecting portion and the second connecting portion are snap-connected can be determined according to the thickness of the blood vessel rupture position, so that the adaptability range of the plugging device to blood vessel ruptures of different thicknesses can be improved.

[0024] In some embodiments, a through-hole-shaped connecting hole is provided at the axial center position of the first connecting portion, and the guide wire of the operating device passes through the connecting hole.

[0025] With the above structure, by providing a connecting hole at the axial center position of the first connecting portion, the guide wire can pass through conveniently, so as to control the first plugging member and the second plugging member to approach each other and make the first connecting portion and the second connecting portion perform snap connection.

[0026] In some embodiments, a connecting structure and a snap structure are provided between the first connecting portion and the second connecting portion. The connecting mechanism enables the first connecting portion and the second connecting portion to be movably connected, and the snap structure enables the first connecting portion and the second connecting portion to be snap-connected. The connecting structure is located at the corresponding positions where the first plugging member and the second plugging member are far away from each other, and the snap structure is located at the corresponding positions where the first plugging member and the second plugging member are close to each other.

[0027] With the above structure, by providing a connection structure between the first connecting portion and the second connecting portion, the first plugging member and the second plugging member can be in a connected state when they are in positions away from each other. Thus, after the first plugging member and the second plugging member are released and opened on both sides of the blood vessel gap, it is convenient to drive the first connecting portion and the second connecting portion closer to reach the corresponding position of the engaging structure, so that the first connecting portion and the second connecting portion are engaged and connected. Thereby, the operation difficulty of using the plugging device to plug the blood vessel gap can be further reduced.

[0028] In some embodiments, a connecting rod is provided at the end of the second plugging member. The connecting rod can be detachably connected to the guide wire of the manipulator. The manipulator can control the rotation of the guide wire and other methods to connect or disconnect the guide wire from the connecting rod on the second plugging member. Thus, in the case of incomplete release or improper position, connection can be made through the connection mechanism between the connecting rod and the guide wire, so that the first plugging member and the second plugging member can be pulled back into the delivery cannula through the guide wire and released again after repositioning. After the first plugging member and the second plugging member are fully released and opened, by rotating the connecting guide wire, the guide wire can be disengaged from the connecting rod.

[0029] These and other aspects of the present utility model will become more readily apparent in the following description of the (multiple) embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following further describes each feature of the present utility model and the connection between each feature with reference to the drawings. The drawings are all exemplary. Some features are not shown in actual proportion, and in some drawings, the conventional and non-essential features in the field related to the present application may be omitted, or non-essential features for the present application may be additionally shown. The combination of the features shown in the drawings is not intended to limit the present application. In addition, throughout the present specification, the content referred to by the same reference numerals is also the same. The specific description of the drawings is as follows:

[0031] Figure 1 Schematic diagram of the structure for the manipulator to release the plugging device at the corresponding position of the blood vessel rupture;

[0032] Figure 2 Schematic diagram of the structure for the plugging device to plug the blood vessel rupture.

[0033] DESCRIPTION OF REFERENCE NUMERALS

[0034] 10 Plugging device; 100 First plugging member; 110 First connecting portion; 120 First connecting rod; 200 Second plugging member; 210 Second connecting portion; 220 Second connecting rod; 20 Manipulator; 21 Guide wire; 22 Cannula; 30 Blood vessel; 31 Blood vessel rupture; 32 Intima; 33 Adventitia. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] The terms "first," "second," "third," etc. or similar terms such as Module A, Module B, Module C, etc. in the description and claims are only used to distinguish similar objects and do not represent a specific order for the objects. Understandably, the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0036] The term "comprising" used in the description and claims should not be construed as being limited to the content listed thereafter; it does not exclude other elements. Therefore, it should be interpreted as specifying the presence of the recited features, integers, or components, but does not exclude the presence or addition of one or more other features, integers, or components and their groups. Thus, the expression "a device comprising device A and B" should not be limited to a device consisting only of components A and B.

[0037] The "one embodiment" or "embodiment" mentioned in this specification means that the specific features, structures, or characteristics described in connection with the embodiment are included in at least one embodiment of the present utility model. Therefore, the phrases "in one embodiment" or "in an embodiment" that appear throughout this specification do not necessarily all refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the various specific features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those of ordinary skill in the art from this disclosure.

[0038] Next, with reference to the accompanying drawings, the specific structure of the vascular rupture occluder 10 in the present application will be described by way of example.

[0039] Figure 1 It is a schematic structural diagram of the operator 20 releasing the occluder 10 at the corresponding position of the vascular rupture 31; Figure 2 It is a schematic structural diagram of the occluder 10 occluding the vascular rupture 31. As Figure 1 、 Figure 2As shown in the figure, the vascular rupture occluder 10 in the present application is used to occlude the vascular rupture 31 under the operation of the operator 20, and includes: a first occluding member 100, on one surface of which a first connecting portion 110 is provided; a second occluding member 200, on one surface of which a second connecting portion 210 is provided. Among them, the first occluding member 100 and the second occluding member 200 have a received state and an open state. When the first occluding member 100 and the second occluding member 200 are folded and in the received state, they can be received into the sleeve 22 of the operator 20. When the first occluding member 100 and the second occluding member 200 are unfolded and in the open state, they are in an umbrella shape. The first occluding member 100 and the second occluding member 200 approach under the control of the operator 20, so that the first connecting portion 110 and the second connecting portion 210 are snap-connected, and the vascular rupture 31 is clamped between the first occluding member 100 and the second occluding member 200.

[0040] As described above, after the first occluding member 100 and the second occluding member 200 are received into the sleeve 22 of the operator 20 in the received state, they can be sent into the blood vessel 30 by the sleeve 22. The first occluding member 100 is released outside the vascular rupture 31 (the side where the vascular rupture 31 faces the outside of the blood vessel 30), so that the first occluding member 100 is in the open state. Then the second occluding member 200 is released inside the vascular rupture 31 (the side where the vascular rupture 31 faces the inside of the blood vessel 30), so that the first occluding member 100 is in the open state. Finally, the operator 20 controls the first connecting portion 110 and the second connecting portion 210 to be snap-connected, and the vascular rupture 31 is clamped between the first occluding member 100 and the second occluding member 200, thereby realizing the occlusion of the vascular rupture 31. Thus, not only can the structure of the occluder 10 be simplified, but during the operation, only by controlling the snap connection of the first connecting portion 110 and the second connecting portion 210 after release, the occlusion of the vascular rupture 31 can be realized, thereby reducing the operation steps and the operation difficulty.

[0041] In some embodiments, the vascular rupture 31 may be a rupture on the blood vessel wall that causes blood to flow out of the blood vessel, or a rupture on the intima 32 of the blood vessel 30 that causes blood to flow between the intima 32 and the adventitia 33 of the blood vessel wall (the rupture that forms an aortic dissection), and there is no limitation thereto.

[0042] In some embodiments, the first occluding member 100 and the second occluding member 200 are made of medical materials, which mainly refer to medical polymer materials or metal materials, and can be medical stainless steel, cobalt-based alloy, titanium-based alloy, shape memory alloy or precious metal, etc. A thin layer of PTFE film or a PTFE film lining can be coated on its surface.

[0043] In some embodiments, the first sealing member 100 and the second sealing member 200 can compress their volumes by folding, squeezing, etc., and after the first sealing member 100 and the second sealing member 200 are in a stored state, they are received into the sleeve 22, so as to send the first sealing member 100 and the second sealing member 200 to the corresponding position of the blood vessel rupture 31 through the sleeve 22.

[0044] In some embodiments, after the first sealing member 100 and the second sealing member 200 are released from the sleeve 22, they can expand under the action of their own elasticity to form an umbrella shape, so as to be in an open state for sealing the blood vessel rupture 31.

[0045] In some embodiments, such as Figure 1 , Figure 2 As shown, in the open state, the edge of the first sealing member 100 bends toward the side where the first connecting portion 110 is provided, and / or the edge of the second sealing member 200 bends toward the side where the second connecting portion 210 is provided. Thus, by bending the edges of the first sealing member 100 and the second sealing member 200 toward the sides where the first connecting portion 110 and the second connecting portion 210 are provided, the pressure between the edge position and the blood vessel 30 can be increased when the first sealing member and the second sealing member 200 clamp the blood vessel rupture 31 in the middle position, thereby improving the sealing performance between the first sealing member 100, the second sealing member 200 and the blood vessel 30, and improving the sealing effect on the blood vessel rupture 31.

[0046] In some embodiments, such as Figure 2 As shown, in the open state, the diameter of the first sealing member 100 is larger than the diameter of the second sealing member 200. Specifically, the diameter of the first sealing member 100 outside the blood vessel rupture 31 is larger than the diameter of the second sealing member 200 inside the blood vessel rupture 31. Thus, by making the diameter of the first sealing member 100 larger than that of the second sealing member 200, after the first sealing member 100 and the second sealing member 200 clamp and seal the blood vessel rupture 31, the edge of the second sealing member 200 can be located at a position on the side of the edge of the first sealing member 100 toward the center, so that the clamping of the blood vessel rupture 31 by the first sealing member 100 and the second sealing member 200 can be more stable, and further the sealing effect on the blood vessel rupture 31 can be improved.

[0047] In some embodiments, such as Figure 1 , Figure 2As shown, the first connecting portion 110 is located at the central position of the first plugging member 100, and the second connecting portion 210 is located at the central position of the second plugging member 200. The first connecting portion 110 and the second connecting portion 210 are respectively located on the opposite surfaces of the first plugging member 100 and the second plugging member 200. Thus, by making the first connecting portion 110 and the second connecting portion 210 be located at the central positions of the first plugging member 100 and the second plugging member 200 respectively, when the first plugging member 100 and the second plugging member 200 plug the blood vessel rupture 31, they can be snap-connected at the central position, so that the pressure between the edge positions of the first plugging member 100 and the second plugging member 200 and the blood vessel 30 can be made more uniform, and the connection between the first plugging member 100 and the second plugging member 200 can be made more stable, thereby improving the plugging effect on the blood vessel rupture 31.

[0048] In some embodiments, the first connecting portion 110 is columnar, the second connecting portion 210 is hole-shaped, and the first connecting portion 110 is inserted into the second connecting portion 210 and extends to a predetermined position for snap connection. Thus, by making the first connecting portion 110 be columnar and the second connecting portion 210 be hole-shaped, after the first connecting portion 110 is inserted into the second connecting portion 210, the first connecting portion 110 and the second connecting portion 210 can guide each other so as to perform snap connection after reaching the predetermined position.

[0049] In some embodiments, convex-shaped claws are provided on the outer peripheral surface of the first connecting portion 110, and clamping grooves are provided on the inner peripheral surface of the second connecting portion 210. The first connecting portion 110 is inserted into the second connecting portion 210 and slides along the axial direction of the first connecting portion 110, so that after the claws slide into the clamping grooves, the claws are snap-connected with the clamping grooves to prevent the first plugging member 100 and the second plugging member 200 from separating.

[0050] In some embodiments, the first connecting portion 110 and the second connecting portion 210 are snap-connected at multiple positions along the extending direction of the first connecting portion 110 and the second connecting portion 210. Specifically, multiple claws and / or clamping grooves are axially provided on the first connecting portion 110 and the second connecting portion 210, so that the first connecting portion 110 and the second connecting portion 210 can be snap-connected at multiple positions. Thus, by making the first connecting portion 110 and the second connecting portion 210 snap-connect at different positions, the distance between the first plugging member 100 and the second plugging member 200 can be adjusted, and further the clamping force after the first plugging member 100 and the second plugging member 200 clamp the blood vessel rupture 31 in the middle can be adjusted to ensure the plugging effect. In addition, the position where the first connecting portion 110 and the second connecting portion 210 perform snap connection can be determined according to the thickness of the blood vessel rupture 31 at the position, so that the adaptability range of the plugging device 10 to blood vessel ruptures 31 with different thicknesses can be improved.

[0051] In some embodiments, such asFigure 1 As shown, a through-hole-shaped connection hole is provided at the axial center position of the first connection part 110, and the guide wire 21 of the manipulator 20 passes through the connection hole. Thus, by providing a connection hole at the axial center position of the first connection part 110, it is convenient for the guide wire 21 to pass through, so as to control the first plugging member 100 and the second plugging member 200 to approach each other, and the first connection part 110 and the second connection part 210 are engaged and connected.

[0052] In some embodiments, there is a connection structure and an engagement structure between the first connection part 110 and the second connection part 210. The connection mechanism enables the first connection part 110 and the second connection part 210 to be movably connected, and the engagement structure enables the first connection part 110 and the second connection part 210 to be engaged. The connection structure is located at the corresponding positions where the first plugging member 100 and the second plugging member 200 are far away from each other, and the engagement structure is located at the corresponding positions where the first plugging member 100 and the second plugging member 200 are close to each other. Thus, by providing a connection structure between the first connection part 110 and the second connection part 210, the first plugging member 100 and the second plugging member 200 can be in a connected state when they are in a position far away from each other. After the first plugging member 100 and the second plugging member 200 are released and in an open state on both sides of the blood vessel 30 gap, it is convenient to drive the first connection part 110 and the second connection part 210 to approach to the corresponding position of the engagement structure, so that the first connection part 110 and the second connection part 210 are engaged and connected. Thus, the operation difficulty of using the plugging device 10 to plug the blood vessel 30 gap can be further reduced.

[0053] In some embodiments, when the first plugging member 100 and the second plugging member 200 are folded and stored in the sleeve 22 of the manipulator 20 in a storage state, the first connection part 110 and the second connection part 210 are in a separated state. After the first plugging member 100 and the second plugging member 200 are released from the sleeve 22 and are on both sides of the blood vessel rupture 31, the manipulator 20 controls the first connection part 110 and the second connection part 210 to be engaged and connected, and the blood vessel rupture 31 is clamped between the first plugging member 100 and the second plugging member 200.

[0054] In some embodiments, a connecting rod is provided on each of the first plugging member 100 and the second plugging member 200 on the two opposite sides. The connecting rod can be detachably connected to the guide wire 21 of the manipulator 20. The manipulator 20 can control the guide wire 21 to rotate or the like, so that the guide wire 21 is connected to or disengaged from the connecting rods 120 and 220 on the first plugging member 100 and the second plugging member 200. Thus, it is convenient to control the first plugging member 100 and the second plugging member 200 through the guide wire. When they are not fully released or in an inappropriate position, they can be connected through the connection mechanism between the connecting rods 120, 220 and the guide wire 21, so that the first plugging member 100 and the second plugging member 200 can be pulled back into the delivery cannula 22 through the guide wire 21 and released again after re-adjusting the position. After the first plugging member 100 and the second plugging member 200 are fully released and opened, by rotating the connecting guide wire 21, the guide wire 21 can be disengaged from the connecting rods 120 and 220.

[0055] The above content has made an exemplary description of the possible embodiments of the plugging device 10 in the present application. Next, with reference to the drawings, the specific structure of the plugging device 10 in the present application will be described in detail in a specific embodiment.

[0056] As Figure 1 、 Figure 2 shown, the vascular rupture plugging device 10 in the present application includes a first plugging member 100 and a second plugging member 200. The first plugging member 100 and the second plugging member 200 are made of shape memory alloy and have a storage state and an open state. Specifically, the first plugging member 100 and the second plugging member 200 are in an umbrella shape in the natural state (open state), and the first plugging member 100 and the second plugging member 200 can reach the storage state after being folded and compressed so as to be received in the cannula 22 of the manipulator 20. Moreover, after the first plugging member 100 and the second plugging member 200 are released from the cannula 22, they can return to the open state to form an umbrella shape under their own elastic action.

[0057] As Figure 1 、 Figure 2 shown, a first connecting portion 110 is provided on the first plugging member 100. When the first plugging member 100 is in the open state, the first connecting portion 110 is located at the central position of one side surface of the first plugging member 100. The first connecting portion 110 is cylindrical, and raised clamping claws are provided on the outer peripheral surface of the first connecting portion 110. A plurality of clamping claws are provided and arranged at equal intervals along the axial direction of the first connecting portion 110. A through-hole-shaped connecting hole is also provided at the axial center position of the first connecting portion 110, and the guide wire 21 of the manipulator 20 can pass through the connecting hole so as to control the first plugging member 100.

[0058] As Figure 1 、 Figure 2As shown, a second connecting portion 210 is provided on the second plugging member 200. When the second plugging member 200 is in the open state, the second connecting portion 210 is located at the central position of one side surface of the second plugging member 200. The second connecting portion 210 is in the shape of a through hole, and the aperture of the second connecting portion 210 is adapted to the diameter of the first connecting portion 110. A clamping groove is provided on the inner circumferential surface of the second connecting portion 210. There is one clamping groove. When the first connecting portion 110 is inserted into the second connecting portion 210, the clamping claws can be engaged with the clamping groove. By engaging different clamping claws with the clamping groove, the distance between the first plugging member 100 and the second plugging member 200 can be adjusted.

[0059] As Figure 1 , Figure 2 shown, a first connecting rod 120 is provided at the middle position of the other side surface of the first plugging member 100, and a second connecting rod 220 is provided at the middle position of the other side surface of the second plugging member 200. Through holes are provided at the axial center positions of the first connecting rod 120 and the second connecting rod 220, and the through holes are coaxially communicated with the through holes on the first connecting portion 110 and the second connecting portion 210 respectively, so that the guide wire 21 can pass through. The through holes on the first connecting rod 120 and the second connecting rod 220 are threaded through holes, so that the guide wire 21 can extend into the threaded through holes and be threadedly connected with the threaded through holes by rotation, and the guide wire 21 can also be separated from the threaded through holes by rotation. Thus, the connection and separation of the guide wire 21 with the first connecting rod 120 and the second connecting rod 220 can be realized.

[0060] As Figure 1 , Figure 2 shown, the first plugging member 100 in the open state is bent at the edge position towards the side where the first connecting portion 110 is provided, and the second plugging member 200 in the open state is bent at the edge position towards the side where the second connecting portion 210 is provided. Thus, after the first connecting portion 110 and the second connecting portion 210 are engaged and connected, the edges of the first plugging member 100 and the second plugging member 200 form an inwardly buckled state. After the blood vessel rupture 31 is clamped between the first plugging member 100 and the second plugging member 200, the pressure between the edge position and the blood vessel 30 can be increased, thereby improving the plugging effect on the blood vessel rupture 31.

[0061] The occluder 10 in this embodiment is controlled by the manipulator 20 to occlude the vascular rupture 31. First, the guide wire 21 is controlled to reach the position of the vascular rupture 31 along the blood vessel 30 in the blood vessel 30, and the sleeve 22 can reach the position of the vascular rupture 31 along the guide wire 21. The first occluding member 100 and the second occluding member 200 are threaded on the guide wire 21 (the guide wire 21 passes through the second connecting portion 210 and the connecting hole) and are located at the end position of the sleeve 22. When occluding, first, the end of the sleeve 22 extends to the outside of the vascular rupture 31, and then by retracting the sleeve 22, the first occluding member 100 is released from the sleeve 22 under the support of the guide wire 21 to the outside of the vascular rupture 31, and the first occluding member 100 is expanded to the open state to form an umbrella shape on the outside of the vascular rupture 31. The size of the first occluding member 100 in the open state is larger than the size of the vascular rupture 31, so that the vascular rupture 31 is completely within the coverage range of the first occluding member 100. The sleeve 22 continues to retract inside the vascular rupture 31, so that the second occluding member 200 is released inside the vascular rupture 31, and the second occluding member 200 is expanded to the open state to form an umbrella shape inside the vascular rupture 31. The size of the second occluding member 200 in the open state is larger than the size of the vascular rupture 31, so that the vascular rupture 31 is completely within the coverage range of the first occluding member 100. Then, the second occluding member 200 is pushed along the guide wire 21 towards the first occluding member 100 through the sleeve 22, so that the first connecting portion 110 is inserted into the second connecting portion 210 until the appropriate claw is caught in the card slot, so that the first occluding member 100 and the second occluding member 200 firmly clamp the vascular rupture 31 in the middle, realizing the occlusion of the vascular rupture 31. Finally, the guide wire 21 is controlled to be separated from the first occluding member 100 and the second occluding member 200, and the guide wire 21 and the sleeve 22 are controlled to withdraw from the blood vessel 30.

[0062] Note that the above is only a preferred embodiment of the present application and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present application has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments only. Without departing from the concept of the present invention, more other equivalent embodiments can also be included, all belonging to the protection scope of the present invention.

Claims

1. A vascular rupture occluder, characterized in that, For blocking vascular rupture under the operation of an operating device; including: A first blocking member, on one side surface of which a first connecting portion is provided; A second blocking member, on one side surface of which a second connecting portion is provided; Wherein, the first blocking member and the second blocking member have a receiving state and an open state. When the first blocking member and the second blocking member are folded and in the receiving state, they can be received in the sleeve of the operating device. When the first blocking member and the second blocking member are unfolded and in the open state, they are in an umbrella shape. The first blocking member and the second blocking member approach under the control of the operating device, so that the first connecting portion and the second connecting portion are snap-connected, and the vascular rupture is clamped between the first blocking member and the second blocking member.

2. The vascular rupture occluder according to claim 1, characterized in that, In the open state, the edge of the first blocking member bends towards the side where the first connecting portion is provided, and / or, the edge of the second blocking member bends towards the side where the second connecting portion is provided.

3. The vascular rupture occluder according to claim 2, characterized in that, In the open state, the diameter of the first blocking member is larger than the diameter of the second blocking member.

4. The vascular rupture occluder according to any one of claims 1-3, characterized in that, The first connecting portion is located at the central position of the first blocking member, the second connecting portion is located at the central position of the second blocking member, and the first connecting portion and the second connecting portion are respectively located on the opposite side surfaces of the first blocking member and the second blocking member.

5. The vascular rupture occluder according to claim 4, wherein The first connecting portion is columnar, the second connecting portion is hole-shaped, and the first connecting portion is inserted into the second connecting portion and extends to a predetermined position for snap connection.

6. The vascular rupture occluder according to claim 5, characterized in that, A through-hole-shaped connecting hole is provided at the axial center position of the first connecting portion, and the guide wire of the operating device passes through the connecting hole.

7. The vascular rupture occluder according to claim 5, wherein The first connecting portion and the second connecting portion are snap-connected at multiple positions along the extending direction of the first connecting portion and the second connecting portion.

8. The vascular rupture occluder according to any one of claims 5-7, characterized in that, There is a connecting structure and a snap structure between the first connecting portion and the second connecting portion. The connecting structure enables the first connecting portion and the second connecting portion to be movably connected, and the snap structure enables the first connecting portion and the second connecting portion to be snap-connected. The connecting structure is located at the corresponding positions where the first blocking member and the second blocking member are far away from each other, and the snap structure is located at the corresponding positions where the first blocking member and the second blocking member are close to each other.

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