Interventional valve release limiting device
By designing an interventional valve release limiting device, using anti-reset components and disassembly components, the problem of the valve stent being easily contracted automatically after opening is solved, and the stable deployment and reuse of the stent is achieved, reducing the experimental cost.
Patent Information
- Application Number
- CN202510195733.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-04-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After opening the existing valve stent, the support depends entirely on the force between the metal stents, which is easy to automatically contract when impacted or squeezed, affecting the arterial vascular support effect when the valve is released, and is inconvenient for reuse, resulting in high experimental costs.
An interventional valve release limiting device is designed, including a support member, an anti-reset member and a disassembly member. The first anti-resetting member and the second anti-resetting member are automatically limited during the deployment of the valve stent, so as to avoid the resetting of the deformation strips, and the removal and reuse of the valve stent is realized by disassembling the components.
The stability of valve stent deployment is achieved, prevents automatic stent recovery, and allows reuse of valve stents, reducing experimental costs.
Smart Images
Figure CN119818238A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of valve stent limiting, in particular to an interventional valve release limiting device. Background Art
[0002] (Aortic valve) is located between the left ventricle and the aorta, and is constantly opening and closing; it ensures that blood flows from the left ventricle to the aorta, and does not flow back from the aorta to the left ventricle. When the arteries at the edge of the valve are narrowed due to disease, the arteries need to be supported by valve stents to ensure the normal circulation and supply of blood. During the experimental research and development stage, 3D modeling will be performed using the full aortic CTA image, and then 3D printing will be used to print a reaction chamber with elasticity similar to that of human vascular tissue. The valve stent will then be placed in the reaction chamber to support the aorta.
[0003] During use, although the existing valve stent can provide support, its support is completely dependent on the force between the metals after the metal frame is opened. Therefore, when impacted or squeezed, the metal frame will automatically shrink, affecting the effect of supporting the arterial blood vessels when the valve is released. In addition, the existing valve stent is not easy to shrink during the experiment, which is not conducive to reuse, making the experimental cost higher. Summary of the invention
[0004] In view of the fact that the valve stent mentioned above or in the prior art, after being opened, is supported entirely by the force between metals, and when subjected to impact or extrusion, the metal stent will automatically shrink, affecting the effect of supporting the arterial blood vessels when the valve is released, and the existing valve stent is not convenient to shrink during the experiment, which is not conducive to reuse and increases the cost of the experiment, the present invention is proposed.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including a supporting component, including a plurality of supporting blocks, a first deformation bar and a second deformation bar arranged between two adjacent supporting blocks, and a fixed bar arranged between the first deformation bar and the second deformation bar; a first anti-reset component, including a accommodating component arranged on the first deformation bar and the second deformation bar, a telescopic component arranged on the fixed bar, and a one-way component arranged on the supporting component; a second anti-reset component, including a frame-shaped component arranged on the accommodating component, and an elastic component arranged on the frame-shaped component; a disassembly component, including a sliding component arranged on the supporting block, a rotating component arranged on the sliding component, a lifting component arranged on the accommodating component, and a separation component arranged on the sliding component.
[0006] As a preferred solution of the interventional valve release and limit device of the present invention, the accommodating component includes two arc blocks fixedly connected to the first deformation strip and the second deformation strip, and the arc blocks are provided with arc grooves, and the two arc grooves are arranged opposite to each other.
[0007] As a preferred solution of the interventional valve release and limit device of the present invention, the telescopic assembly includes a telescopic sleeve fixedly connected to a fixed bar, the telescopic end of the telescopic sleeve is rotatably connected to a rotating block, a moving block is fixedly connected to the rotating block, and the width of the arc groove is greater than the thickness of the moving block.
[0008] As a preferred solution of the interventional valve release limit device of the present invention, wherein: the one-way component includes a plurality of first pawls arranged on the moving block, an L-shaped groove is arranged in the arc groove, a T-shaped block is slidably connected in the L-shaped groove, a second pawl cooperating with the first pawl is fixedly connected to the T-shaped block, the side wall of the second pawl is abutted against the inner wall of the L-shaped groove, the T-shaped block is elastically connected to the inner wall of the L-shaped groove by a first spring, and a horizontal block cooperating with the T-shaped block is fixedly connected in the L-shaped groove.
[0009] As a preferred solution of the interventional valve release and limit device of the present invention, the frame-shaped component includes a connecting rod fixedly connected to the arc block, an L-shaped plate is fixedly connected to the connecting rod, and the L-shaped plate extends to the outside of the support block.
[0010] As a preferred solution of the interventional valve release limit device of the present invention, the elastic component includes a mounting groove arranged on an L-shaped plate, a cylinder is slidably connected in the mounting groove, the cylinder is elastically connected to the inner wall of the mounting groove through a second spring, and a limit hole cooperating with the cylinder is fixedly connected to the support block.
[0011] As a preferred solution of the interventional valve release limit device of the present invention, the sliding assembly includes a bearing groove arranged on the support block, a support column is slidably connected in the bearing groove, and the support column is elastically connected to the inner wall of the bearing groove through a third spring.
[0012] As a preferred solution of the interventional valve release limit device of the present invention, wherein: the rotating component includes an annular groove arranged on the side wall of the support column, a circular ring is rotatably connected in the annular groove, a threaded groove is provided on the inner wall of the bearing groove, and a guide ball cooperating with the threaded groove is fixedly connected to the side wall of the circular ring through an extension rod.
[0013] As a preferred solution of the interventional valve release limit device of the present invention, the lifting assembly includes two stop rings fixedly connected to the circular ring, a storage line is provided between the two stop rings, and the outer end of the storage line passes through the support block and is fixedly connected to the T-shaped block.
[0014] As a preferred solution of the interventional valve release limit device of the present invention, wherein: the separation component includes a wedge block fixedly connected to the side wall of the support column, two guide rods pass through and are slidably connected to the inner wall of the bearing groove, the guide rod at the lower end extends into the limit hole, and an anti-drop cap is fixedly connected to the outer side of the guide rod at the upper end, and a vertical bar is fixedly connected to the guide rod, and the vertical bar is provided with an inclined surface that cooperates with the wedge block.
[0015] The beneficial effects of the interventional valve release and limit device of the present invention are as follows: through the first anti-reset component and the second anti-reset component, during the expansion of the valve stent, the first deformation strip and the second deformation strip can be automatically limited to avoid the first deformation strip and the second deformation strip from being reset, thereby ensuring the stability of the expansion of the valve stent; at the same time, during the expansion of the first deformation strip and the second deformation strip, the cylinder can be inserted into the limit hole to support the support block and limit the valve stent, thereby further preventing the valve stent from returning; and by setting a disassembly component, the limit can be released so that the valve stent can be disassembled for repeated testing and saving experimental costs, thereby solving the problem that after the valve stent is opened, the support depends entirely on the force between metals, and the metal frame will automatically shrink when it is impacted or squeezed, affecting the effect of supporting the arterial blood vessels when the valve is released; and the existing valve stent is not convenient to shrink during the experiment, which is not conducive to repeated use and increases the experimental cost; and the valve stent is stably deployed and can be reset. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the external structure of the interventional valve release limit device.
[0018] Figure 2 This is a schematic diagram of the partial structure of the interventional valve release limit device.
[0019] Figure 3 This is a schematic cross-sectional structure diagram of the containing component of the interventional valve release limit device.
[0020] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of .
[0021] Figure 5 Exploded view of the elastic component of the interventional valve release limit device.
[0022] Figure 6 A cross-sectional view of the sliding assembly of an interventional valve release limit device.
[0023] Figure 7 A cross-sectional view of the separated components of an interventional valve release and retention device.
[0024] Figure 8 Exploded view of the rotating assembly of the interventional valve release limiter.
[0025] In the figure: 100, supporting component; 101, supporting block; 102, first deformation strip; 103, second deformation strip; 104, fixing strip; 200, first anti-reset component; 201, accommodating component; 201a, arc block; 201b, arc groove; 202, telescopic component; 202a, telescopic sleeve; 202b, rotating block; 202c, moving block; 203, one-way component; 203a, first ratchet; 203b, L-shaped groove; 203c, T-shaped block; 203d, second ratchet; 203e, first spring; 203f, horizontal block; 300, second anti-reset component; 301, frame component; 301a, connecting rod; 30 1b, L-shaped plate; 302, elastic component; 302a, mounting groove; 302b, cylinder; 302c, second spring; 302d, limiting hole; 400, disassembly component; 401, sliding component; 401a, bearing groove; 401b, support column; 401c, third spring; 402, rotating component; 402a, annular groove; 402b, circular ring; 402c, threaded groove; 402d, guide ball; 403, lifting component; 403a, stop ring; 403b, storage line; 404, separation component; 404a, wedge block; 404b, guide rod; 404c, anti-drop cap; 404d, vertical bar; 404e, inclined plane. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0027] Example 1, reference Figure 1 to Figure 4, which is the first embodiment of the present invention, and provides an interventional valve release limit device, which can prevent the valve stent from loosening and collapsing, and includes a support component 100, including a plurality of support blocks 101, a first deformation strip 102 and a second deformation strip 103 arranged between two adjacent support blocks 101, and a fixing strip 104 arranged between the first deformation strip 102 and the second deformation strip 103; a first anti-reset component 200, including a accommodating component 201 arranged on the first deformation strip 102 and the second deformation strip 103, and a fixing strip 104 arranged between the first deformation strip 102 and the second deformation strip 103. The telescopic component 202 on the fixing bar 104 and the one-way component 203 arranged on the supporting component; the second anti-reset component 300 includes a frame-shaped component 301 arranged on the containing component 201, and an elastic component 302 arranged on the frame-shaped component 301; the disassembly component 400 includes a sliding component 401 arranged on the supporting block 101, a rotating component 402 arranged on the sliding component 401, a lifting component 403 arranged on the containing component 201, and a separation component 404 arranged on the sliding component 401.
[0028] Specifically, the multiple support blocks 101, the multiple first deformation strips 102 and the second deformation strip 103, and the fixing strip 104 are combined into a valve stent. The first deformation strip 102 and the second deformation strip 103 can be deformed so as to make the valve stent larger or smaller. The first deformation strip 102 and the support block 101 and the fixing strip 104 are rotatably connected, and the second deformation strip 103 is the same. When the valve stent is opened, the first deformation strip 102 and the second deformation strip 103 are pulled to avoid getting stuck between the two support blocks 101.
[0029] Furthermore, the accommodation component 201 includes two arc blocks 201a fixedly connected to the first deformation strip 102 and the second deformation strip 103, and the arc blocks 201a are provided with arc grooves 201b, and the two arc grooves 201b are arranged opposite to each other; the telescopic component 202 includes a telescopic sleeve 202a fixedly connected to the fixed strip 104, and the telescopic end of the telescopic sleeve 202a is rotatably connected to a rotating block 202b, and the rotating block 202b is fixedly connected to a moving block 202c, and the width of the arc groove 201b is greater than the thickness of the moving block 202c; the one-way component 203 includes The movable block 202c comprises a plurality of first pawls 203a, an L-shaped groove 203b is provided in the arc groove 201b, a T-shaped block 203c is slidably connected in the L-shaped groove 203b, a second pawl 203d which cooperates with the first pawl 203a is fixedly connected to the T-shaped block 203c, a side wall of the second pawl 203d is abutted against an inner wall of the L-shaped groove 203b, the T-shaped block 203c is elastically connected to the inner wall of the L-shaped groove 203b through a first spring 203e, and a horizontal block 203f which cooperates with the T-shaped block 203c is fixedly connected in the L-shaped groove 203b.
[0030] The arrangement of the telescopic sleeve 202a can prevent the arc block 201a from getting stuck when the first deformation strip 102 and the second deformation strip 103 are deformed. The first spring 203e is elastic enough and the second pawl 203d will not fall automatically.
[0031] When in use, after the entire device (valve stent, the same below) is placed in the specified position, the valve stent is expanded by the airbag. During this process, the first deformation bar 102 and the second deformation bar 103 are pulled to the left and right respectively, so that the fixed block moves upward. During this process, the telescopic sleeve 202a moves to translate up and down to avoid the phenomenon of jamming between the arc block 201a and the moving block 202c. At the same time, for the moving block 202c, it is equivalent to the two arc blocks 201a moving to the two ends respectively (here it is set that the moving block 202c is in a stationary state, and the arc block 201a is in a moving state relative to the moving block 202c). During this process, the outer arc edge of the first ratchet 203a is against the outer arc edge of the second ratchet 203d. The first pawl 203a presses the second pawl 203d obliquely downward. Due to the setting of the first spring 203e, the T-shaped block 203c can move downward, so that the second pawl 203d moves downward and will not block the movement of the movable block 202c. However, when the arc block 201a is reset, the inner arc edge of the first pawl 203a is against the inner arc edge of the second pawl 203d. At this time, the second pawl 203d is subjected to an oblique upward force. Due to the setting of the cross block 203f, the second pawl 203d cannot move upward, so that the second pawl 203d is stuck with the first pawl 203a, blocking the reset of the arc block 201a, thereby supporting the limit of the valve stent, ensuring that the valve stent will not shrink when subjected to pressure, and ensuring stability after support.
[0032] In summary, by setting the support component 100 and the first anti-reset component 200, after the support block 101, the first deformation strip 102, and the second deformation strip 103 of the valve stent are unfolded, the first deformation strip 102 and the second deformation strip 103 can be automatically limited to avoid resetting of the first deformation strip 102 and the second deformation strip 103, thereby ensuring the stability of the valve stent after unfolding.
[0033] Example 2, reference Figure 1 to Figure 7, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a second anti-reset component 300 of the interventional valve release limit device, which solves the problem of how to further prevent the valve stent from automatically resetting. It includes a frame-shaped component 301, including a connecting rod 301a fixedly connected to the arc block 201a, an L-shaped plate 301b fixedly connected to the connecting rod 301a, and the L-shaped plate 301b extends to the outside of the support block 101. The elastic component 302 includes a second anti-reset component 300 provided on the L-shaped The mounting groove 302a on the plate 301b has a cylinder 302b slidably connected in the mounting groove 302a. The cylinder 302b is elastically connected to the inner wall of the mounting groove 302a via a second spring 302c. A limiting hole 302d matching the cylinder 302b is fixedly connected to the support block 101. The initial position of the L-shaped plate 301b here is at the lower side of the limiting hole 302d. When the first deformation bar 102 and the second deformation bar 103 move, the cylinder 302b can slowly approach the limiting hole 302d.
[0034] When in use, when the valve stent is expanded, the first deformable strip 102 and the second deformable strip 103 both move obliquely upward, and at this time, the arc block 201a on the first deformable strip 102 and the second deformable strip 103 slowly moves away from the support block 101, so that the L-shaped plate 301b slowly moves obliquely upward and slowly approaches the support block 101. When the cylinder 302b abuts against the side wall of the support block 101, the first deformable strip 102 and the second deformable strip 103 continue to move, and at this time, the cylinder 302b moves toward The mounting groove 302a moves in the direction of the second spring 302c, and the second spring 302c is compressed. When the valve stent is opened to the required size, the cylinder 302b is opposite to the limiting hole 302d. At this time, under the action of the second spring 302c, the cylinder 302b can be driven to move toward the limiting hole 302d and inserted into the limiting hole 302d, thereby limiting the support block 101 and preventing the support block 101 from continuing to move outward, thereby ensuring the stability of the support block 101 and further ensuring the stability of the valve stent after opening.
[0035] In summary, by setting the second anti-reset component 300, when the first deformation strip 102 and the second deformation strip 103 move, the cylinder 302b on the L-shaped plate 301b connected to the arc block 201a can be inserted into the limiting hole 302d on the support block 101 to limit the support block 101 and prevent the support block 101 from loosening, thereby further ensuring the stability of the valve stent deployment.
[0036] Example 3, reference Figures 1 to 8, which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a disassembly component 400 of the interventional valve release limit device, which solves the problem of how to reset the valve stent during the experiment for reuse. It includes a sliding component 401, including a bearing groove 401a arranged on the support block 101, a support column 401b is slidably connected in the bearing groove 401a, and the support column 401b is elastically connected to the inner wall of the bearing groove 401a through a third spring 401c. The rotating component 402 includes an annular groove 402a arranged on the side wall of the support column 401b, a ring 402b is rotatably connected in the annular groove 402a, a threaded groove 402c is provided on the inner wall of the bearing groove 401a, and a guide ball 402d that cooperates with the threaded groove 402c is fixedly connected to the side wall of the ring 402b through an extension rod.
[0037] Specifically, the diameter of the middle part of the bearing groove 401a is larger than the diameters of the upper and lower ends. The thread groove 402c is located at the lower end of the bearing groove 401a. The guide ball 402d cooperates with the thread groove 402c, so that the guide ball 402d slides in the thread groove 402c, thereby driving the ring 402b to rotate.
[0038] Furthermore, the lifting component 403 includes two stop rings 403a fixedly connected to the circular ring 402b, a storage line 403b is provided between the two stop rings 403a, the outer end of the storage line 403b passes through the support block 101 and is fixedly connected to the T-shaped block 203c; the separation component 404 includes a wedge block 404a fixedly connected to the side wall of the support column 401b, two guide rods 404b pass through and are slidably connected to the inner wall of the bearing groove 401a, the lower end guide rod 404b extends into the limiting hole 302d, the outer side of the upper end guide rod 404b is fixedly connected to an anti-drop cap 404c, the guide rod 404b is fixedly connected to a vertical bar 404d, and the vertical bar 404d is provided with an inclined surface 404e that cooperates with the wedge block 404a.
[0039] It should be noted that the vertical bar 404d here is located in the middle of the bearing groove 401a. Since the middle space is larger than the upper and lower ends, the vertical plate has space to slide. The two guide rods 404b can guide the vertical plate to ensure the lateral sliding of the vertical plate. The setting of the inclined surface 404e can avoid the wedge block 404a and the vertical plate from being stuck. During the experiment, the storage line 403b here can be set as a non-absorbable line to save costs.
[0040] When in use, when it is necessary to store the valve stent and make limited contact, it is only necessary to clamp the valve stent first (the clamping method here can be balloon inflation or expansion frame, and there is no unique method here, which can be selected according to actual conditions), and then push the support column 401b (here, with the help of tools, multiple support columns 401b can be pushed at a time) to make the support column 401b move toward the bearing groove 401a. When the support column 401b moves, it can drive the guide ball 402d to slide in the annular groove 402a, so that the ring 402b rotates. When the ring 402b rotates, it can drive the storage line 403b to move, so that the T-shaped block 203c is Pull downward, so that the second pawl 203d moves downward and disengages from the first pawl 203a. At this time, the arc block 201a can move, so that the limit of the first deformation strip 102 and the second deformation strip 103 is released. At the same time, when the support column 401b slides, it can also drive the wedge block 404a to move, so that the wedge block 404a is against the inclined surface 404e on the vertical plate, so that the vertical plate moves toward the limiting hole 302d, so that the guide rod 404b moves and pushes out the cylinder 302b in the limiting hole 302d, so that the limit of the support block 101 is released, so that the valve stent can be squeezed and the valve stent is stored, so that the valve stent can be reused in the experimental stage.
[0041] In summary, by setting the disassembly component 400, in the process of pushing the cylinder 302b, the first pawl 203a and the second pawl 203d can be disengaged, and the cylinder 302b and the limiting hole 302d can be disengaged, so that the limiting of the first deformation strip 102, the second deformation strip 103 and the support block 101 is released, so that the valve stent can be squeezed and stored, so that the valve stent can be reused in the experimental stage.
[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. An interventional valve release and limit device, characterized in that: include, The supporting component (100) comprises a plurality of supporting blocks (101), a first deformable strip (102) and a second deformable strip (103) arranged between two adjacent supporting blocks (101), and a fixing strip (104) arranged between the first deformable strip (102) and the second deformable strip (103); The first anti-reset component (200) comprises a receiving component (201) arranged on the first deformation strip (102) and the second deformation strip (103), a telescopic component (202) arranged on the fixing strip (104), and a one-way component (203) arranged on the supporting component; A second anti-reset component (300) comprises a frame-shaped component (301) arranged on the containing component (201), and an elastic component (302) arranged on the frame-shaped component (301); The disassembly component (400) comprises a sliding component (401) arranged on the support block (101), a rotating component (402) arranged on the sliding component (401), a lifting component (403) arranged on the containing component (201), and a separating component (404) arranged on the sliding component (401).
2. The interventional valve release and limit device according to claim 1, characterized in that: The accommodating component (201) comprises two arc-shaped blocks (201a) fixedly connected to the first deformation strip (102) and the second deformation strip (103), the arc-shaped block (201a) being provided with an arc-shaped groove (201b), and the two arc-shaped grooves (201b) being arranged opposite to each other.
3. The interventional valve release and limit device according to claim 2, characterized in that: The telescopic assembly (202) comprises a telescopic sleeve (202a) fixedly connected to a fixed bar (104); the telescopic end of the telescopic sleeve (202a) is rotatably connected to a rotating block (202b); a moving block (202c) is fixedly connected to the rotating block (202b); and the width of the arc groove (201b) is greater than the thickness of the moving block (202c).
4. The interventional valve release and limit device according to claim 3, characterized in that: The one-way component (203) comprises a plurality of first pawls (203a) arranged on the moving block (202c); an L-shaped groove (203b) is arranged in the arc-shaped groove (201b); a T-shaped block (203c) is slidably connected in the L-shaped groove (203b); a second pawl (203d) matched with the first pawl (203a) is fixedly connected to the T-shaped block (203c); a side wall of the second pawl (203d) abuts against an inner wall of the L-shaped groove (203b); the T-shaped block (203c) is elastically connected to the inner wall of the L-shaped groove (203b) via a first spring (203e); and a transverse block (203f) matched with the T-shaped block (203c) is fixedly connected in the L-shaped groove (203b).
5. The interventional valve release and limit device according to claim 4, characterized in that: The frame-shaped component (301) comprises a connecting rod (301a) fixedly connected to the arc-shaped block (201a), an L-shaped plate (301b) fixedly connected to the connecting rod (301a), and the L-shaped plate (301b) extends to the outside of the supporting block (101).
6. The interventional valve release and limit device according to claim 5, characterized in that: The elastic component (302) comprises a mounting groove (302a) arranged on the L-shaped plate (301b), a cylinder (302b) is slidably connected in the mounting groove (302a), the cylinder (302b) is elastically connected to the inner wall of the mounting groove (302a) via a second spring (302c), and a limiting hole (302d) matching the cylinder (302b) is fixedly connected to the support block (101).
7. The interventional valve release and limit device according to claim 6, characterized in that: The sliding assembly (401) comprises a bearing groove (401a) arranged on the supporting block (101), a supporting column (401b) being slidably connected in the bearing groove (401a), and the supporting column (401b) being elastically connected to the inner wall of the bearing groove (401a) via a third spring (401c).
8. The interventional valve release and limit device according to claim 7, characterized in that: The rotating assembly (402) comprises an annular groove (402a) arranged on the side wall of the supporting column (401b), a circular ring (402b) being rotatably connected in the annular groove (402a), a threaded groove (402c) being arranged on the inner wall of the bearing groove (401a), and a guide ball (402d) cooperating with the threaded groove (402c) being fixedly connected to the side wall of the circular ring (402b) via an extension rod.
9. The interventional valve release and limit device according to claim 8, characterized in that: The lifting assembly (403) comprises two stop rings (403a) fixedly connected to the circular ring (402b), a storage line (403b) is provided between the two stop rings (403a), and the outer end of the storage line (403b) passes through the support block (101) and is fixedly connected to the T-shaped block (203c).
10. The interventional valve release and limit device according to claim 8 or 9, characterized in that: The separation component (404) comprises a wedge-shaped block (404a) fixedly connected to the side wall of the support column (401b); two guide rods (404b) penetrate through and are slidably connected to the inner wall of the bearing groove (401a); the guide rod (404b) at the lower end extends into the limiting hole (302d); an anti-drop cap (404c) is fixedly connected to the outer side of the guide rod (404b) at the upper end; a vertical bar (404d) is fixedly connected to the guide rod (404b); and an inclined surface (404e) that cooperates with the wedge-shaped block (404a) is provided on the vertical bar (404d).