Connecting assembly

Abstract

The utility model discloses a connecting assembly which comprises a first connecting piece, a second connecting piece and a third connecting piece. The end of the first connecting piece is provided with a first locking part and a first positioning groove. The end part of the second connecting piece is provided with a second locking part and a second positioning groove, the first locking part is clamped and matched with the second positioning groove, and the second locking part is clamped and matched with the first positioning groove; the sleeve is used for radially restraining the first locking part and the second locking part; the first connecting piece provides a first moving space, and the second connecting piece provides a second moving space; and when the sleeve retracts to be separated from the connecting area of the first connecting piece and the second connecting piece and the first connecting piece moves relative to the second connecting piece, the first locking part moves into the second moving space, and the second locking part moves into the first moving space, so that the first locking part is separated from the second locking part. According to the utility model, the first moving space and the second moving space are provided, so that the first locking part and the second locking part can move relative to each other after the sleeve is withdrawn, and then the connection is quickly separated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and specifically to a connecting component. Background Technology

[0002] Heart valve delivery and replacement devices are used to deliver prosthetic heart valves to a target location, replacing diseased heart valves and restoring heart function. Existing heart valve delivery and replacement devices mainly consist of a delivery device and a prosthetic heart valve. The accurate placement of the prosthetic heart valve in the target area depends on the connection and release mechanism between the delivery device and the prosthetic heart valve.

[0003] Current delivery devices primarily utilize a guidewire, cannula, and fixation device. The fixation device features a protrusion that connects to the guidewire. When both the guidewire and the fixation protrusion have rectangular grooves, the distal end of the guidewire is positioned within the rectangular groove on the fixation protrusion, and the proximal end of the fixation protrusion is positioned within the rectangular groove on the guidewire, creating a locking mechanism. Although this structure provides a stable connection between the fixation protrusion and the guidewire, separation is difficult due to the guidewire's movement, increasing surgical risks. Utility Model Content

[0004] In view of this, the present invention provides a connecting component to solve the problem that the guide wire and the fixing protrusion on the current conveying device are not easy to separate.

[0005] In a first aspect, this utility model provides a connecting component, comprising:

[0006] A first connector, the end of which has a first locking part and a first positioning groove;

[0007] The second connector has a second locking part and a second positioning groove at its end. The first locking part is engaged with the second positioning groove, and the second locking part is engaged with the first positioning groove.

[0008] A sleeve is fitted onto the connection area between the first locking part and the second locking part, and radially constrains the first locking part and the second locking part.

[0009] The first connector provides a first moving space, and the second connector provides a second moving space; when the sleeve is retracted away from the connection area between the first connector and the second connector, and the first connector moves relative to the second connector, the first locking part moves into the second moving space, and the second locking part moves into the first moving space, so that the first locking part and the second locking part are disconnected.

[0010] The beneficial effects of the above-mentioned connecting components are as follows:

[0011] The aforementioned connecting component, by providing a first moving space and a second moving space, enables the first locking part 12 and the second locking part 21 to move relative to each other after the cannula 3 is retracted, thereby quickly disengaging from the connection. This simplifies the separation process, reduces operational complexity, and allows doctors to more easily release the heart valve prosthesis.

[0012] The locking mechanism, with its first locking part engaging with the second positioning groove and vice versa, forms a double-layer locking structure. This enhances the stability of the connection, ensuring it won't accidentally loosen even in complex surgical environments. Because the connection and separation processes are more stable and controllable, it reduces the likelihood of operational errors during surgery, thereby decreasing the probability of complications.

[0013] In one optional embodiment, the first connector includes a first connector body, a connecting rod portion, and a first locking portion. The connecting rod portion is connected between the first connector body and the first locking portion. The outer diameter of the connecting rod portion is smaller than the outer diameter of the first locking portion, so that the first positioning groove is formed between the first connector body, the first locking portion, and the connecting rod portion.

[0014] In one optional embodiment, the first connector is a columnar connector, wherein the body of the first connector, the connecting rod portion and the first locking portion are all cylindrical, and the first positioning groove is an annular positioning groove.

[0015] The top surface of the second locking part is a horizontal surface, and the top surface of the second locking part slides in contact with the outer wall of the connecting rod part.

[0016] In the above technical solution, the first connecting member body, the connecting rod portion, and the first locking portion are all cylindrical, a shape that facilitates manufacturing. During stent delivery, the cannula radially limits the first and second connecting members. Even if the first and second connecting members twist relative to each other, the first locking portion, being cylindrical, can still engage with the second positioning groove. Similarly, the second locking portion can engage with the annular positioning groove. Therefore, this invention can adapt to more complex blood vessel types, reducing the likelihood of the first and second connecting members unlocking during stent delivery, thus ensuring the safety of stent release.

[0017] In one optional embodiment, the second connector includes a second connector body and a second locking part, and the second positioning groove is disposed between the second connector body and the second locking part.

[0018] In one optional embodiment, the axial length of the first positioning groove is greater than the axial length of the second locking part, and the axial length of the second positioning groove is greater than the axial length of the first locking part.

[0019] The first moving space is located at a position away from the first locking part in the first positioning groove, and the second moving space is located at a position away from the second locking part in the second positioning groove.

[0020] In the above technical solution, when the second connector needs to be separated from the first connector, the sleeve retracts, and the second locking part can smoothly disengage from the first positioning groove. At the same time, the first locking part can also disengage from the second positioning groove. Due to the existence of the moving space, the separation process is smoother and resistance is reduced.

[0021] In one alternative embodiment, the height of the second connector body is higher than the height of the second locking part, so that when the first connector moves relative to the second connector, the first locking part of the first connector is limited.

[0022] In the above technical solution, since the height of the second connecting member body is higher than the height of the second locking part, when the first connecting member moves relative to the second connecting member, the higher part of the second connecting member body can limit the movement range of the first locking part, preventing it from moving excessively. Even if separation is required, the first connecting member will not suddenly detach due to the limiting effect, ensuring a smooth and safe separation process.

[0023] In one optional embodiment, the sidewall of the second positioning groove away from the second locking part is configured as a first inclined surface, which is inclined downward from the body of the second connector toward the second locking part; when the first locking part moves toward the first inclined surface, the end face of the first locking part slides relative to the first inclined surface until the two disengage.

[0024] The above technical solution, due to the design of the first inclined surface, allows the two parts to smoothly disengage when the first locking part gradually slides relative to the first inclined surface, thus avoiding the impact and damage that may be caused by sudden separation.

[0025] In one optional embodiment, the end face of the second locking part is configured as a second inclined surface, and the second inclined surface is inclined in the same direction as the first inclined surface;

[0026] The distance between the first inclined plane and the second inclined plane is the same as the sum of the lengths of the connecting rod and the first locking part.

[0027] In the above technical solution, when the first locking part and the second locking part are separated, the first connecting member is pushed to the far end, and the inclined second slope can reduce the obstruction effect on the body of the first connecting member and produce a shovel-like effect, so as to cause the first locking part and the second locking part to separate.

[0028] In one optional embodiment, the first inclined surface is a multi-segment inclined surface, and the first inclined surface segment near the upper part of the second connector body is a gentle inclined surface; when the first locking part and the second locking part are separated, the first locking part moves to the position of the gentle inclined surface near the proximal end, so as to facilitate the disengagement of the first locking part.

[0029] In one optional embodiment, the second inclined surface is a multi-segmented inclined surface, with the second inclined surface segment near the upper part of the second locking part being a gentle inclined surface. When the first locking part and the second locking part are separated, the first connecting body moves proximally to the position of the gentle inclined surface, facilitating the disengagement of the first connecting body.

[0030] In one optional embodiment, the side wall of the second positioning groove near the second locking part is configured as a third inclined surface, the third inclined surface being arranged opposite to the first inclined surface, and the third inclined surface being inclined downward from the second locking part toward the second connector body; when the first locking part moves toward the direction of the third inclined surface, the first locking part and the third inclined surface gradually slide relative to each other until they disengage.

[0031] In one optional embodiment, the third inclined surface is a multi-segmented inclined surface, with the segment of the third inclined surface near the upper part of the second locking part being a gentle inclined surface. When the first locking part is separated from the second locking part, the first locking part moves towards the position of the gentle inclined surface, facilitating the disengagement of the first locking part.

[0032] In one optional embodiment, the first connector is a horizontal connector, the first locking part is disposed at the top of the first connector, the first locking part is hook-shaped, and the top surface of the first locking part is horizontal; the second connector is a horizontal connector, the second locking part is disposed at the bottom of the second connector, the second locking part is hook-shaped, and the bottom surface of the second locking part is horizontal; the first positioning groove is disposed at the connection between the first locking part and the first connector, the first moving space is located at the upper part of the first connector and communicates with the first positioning groove; the second positioning groove is disposed at the connection between the first locking part and the second connector, the second moving space is located at the lower part of the second connector and communicates with the second positioning groove;

[0033] Alternatively, the first connector is a horizontal connector, the first locking part is located at the bottom of the first connector, the first locking part is hook-shaped, and the bottom end surface of the first locking part is horizontal; the second connector is a horizontal connector, the second locking part is located at the top of the second connector, the second locking part is hook-shaped, and the top end surface of the second locking part is horizontal; the first positioning groove is located at the connection between the first locking part and the first connector, the first moving space is located at the lower part of the first connector and communicates with the first positioning groove; the second positioning groove is located at the connection between the first locking part and the second connector, the second moving space is located at the upper part of the second connector and communicates with the second positioning groove.

[0034] In one alternative embodiment, the first connector is disposed inside the sleeve, and the second connector is adapted to be connected to the bracket fixing member, wherein the bracket fixing member is connected to the bracket.

[0035] Alternatively, the second connector is disposed inside the sleeve, and the first connector is adapted to be connected to the bracket fixing member, which is connected to the bracket. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a connecting component provided in Embodiment 1 of this utility model;

[0038] Figure 2 This is a schematic diagram showing the positional relationship between the first connector and the second connector in a connecting assembly provided in Embodiment 1 of this utility model;

[0039] Figure 3 A plan view of a second connector in a connecting assembly provided in Embodiment 1 of this utility model;

[0040] Figure 4 A plan view of a first connector in a connecting assembly provided in Embodiment 1 of this utility model;

[0041] Figure 5 A plan view of the second type of connecting component provided in Embodiment 1 of this utility model;

[0042] Figure 6 A plan view of a connecting component provided in Embodiment 2 of this utility model;

[0043] Figure 7 This is a schematic diagram of the structure of a connecting component provided in Embodiment 2 of this utility model;

[0044] Figure 8 A plan view of a first connector in a connecting assembly provided in Embodiment 2 of this utility model;

[0045] Figure 9 A plan view of a second connector in a connecting assembly provided in Embodiment 2 of this utility model;

[0046] Figure 10 A plan view of the second type of connecting component provided in Embodiment 2 of this utility model;

[0047] Figure 11 This is a schematic diagram of the connection structure between the second connector and the bracket fixing component of this utility model.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. First connector; 11. First connector body; 12. First locking part; 13. Linkage part; 14. First positioning groove; 15. First moving space;

[0050] 2. Second connector; 21. Second locking part; 211. Second inclined surface; 22. Second positioning groove; 221. First inclined surface; 222. Third inclined surface; 23. Second connector body; 24. Second moving space.

[0051] 3. Sleeve;

[0052] 4. Bracket fixing components. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] Heart valve delivery and replacement devices are used to deliver prosthetic heart valves to a target location, replacing diseased heart valves and restoring heart function. Existing heart valve delivery and replacement devices mainly consist of a delivery device and a prosthetic heart valve. The accurate placement of the prosthetic heart valve in the target area depends on the connection and release mechanism between the delivery device and the prosthetic heart valve.

[0055] Current delivery devices primarily utilize a guidewire, cannula, and fixation device. The fixation device features a protrusion that connects to the guidewire. When both the guidewire and the fixation protrusion have rectangular grooves, the distal end of the guidewire is positioned within the rectangular groove on the fixation protrusion, and the proximal end of the fixation protrusion is positioned within the rectangular groove on the guidewire, creating a locking mechanism. Although this structure provides a stable connection between the fixation protrusion and the guidewire, separation is difficult due to the guidewire's movement, increasing surgical risks.

[0056] Based on this, the present invention provides a connecting component that, by providing a first moving space and a second moving space, enables the first locking part and the second locking part to move relative to each other after the cannula is retracted, thereby quickly disengaging from the connection, simplifying the separation steps, reducing operational complexity, and allowing doctors to more easily release the heart valve prosthesis.

[0057] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "distal" generally refers to the end of the medical implant furthest from the operator; "proximal," the opposite of "distal," refers to the end of the medical implant closer to the operator; the term "radial" refers to a direction perpendicular to the axis of the medical implant; and the term "axial" refers to a direction parallel to the axis of the medical implant. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] The following is combined with Figures 1 to 10 The specific embodiments of this utility model will be described in detail with reference to the connecting components of this utility model.

[0059] Example 1

[0060] According to an embodiment of the present invention, a connecting component is provided, which is combined with... Figures 1 to 5 As shown, the device includes a first connector 1, a second connector 2, and a sleeve 3. The first connector 1 has a first locking part 12 and a first positioning groove 14 at its end. The second connector 2 has a second locking part 21 and a second positioning groove 22 at its end. The first locking part 12 engages with the second positioning groove 22, and the second locking part 21 engages with the first positioning groove 14. The sleeve 3 is fitted over the connection area between the first locking part 12 and the second locking part 21, providing radial constraint between them. The first connector 1 provides a first moving space 15, and the second connector 2 provides a second moving space 24. When the sleeve 3 is retracted from the connection area between the first connector 1 and the second connector 2, and the first connector 1 moves relative to the second connector 2, the first locking part 12 moves into the second moving space 24, and the second locking part 21 moves into the first moving space 15, thereby disengaging the first locking part 12 from the second locking part 21.

[0061] The aforementioned connecting assembly, by providing a first moving space and a second moving space, allows the first locking part 12 and the second locking part 21 to move relative to each other after the cannula 3 is retracted, thereby quickly disengaging the connection. This simplifies the separation process, reduces operational complexity, and allows doctors to more easily release the heart valve prosthesis. Furthermore, it ensures the orderly movement of each component during separation, avoiding unnecessary jamming or obstruction, and improving the controllability and accuracy of the operation.

[0062] The locking mechanism, with its first locking part engaging with the second positioning groove and vice versa, forms a double-layer locking structure. This enhances the stability of the connection, ensuring it won't accidentally loosen even in complex surgical environments. Because the connection and separation processes are more stable and controllable, it reduces the likelihood of operational errors during surgery, thereby decreasing the probability of complications.

[0063] In some embodiments, the first connector 1 includes a first connector body 11, a connecting rod portion 13, and a first locking portion 12. The connecting rod portion 13 is connected between the first connector body 11 and the first locking portion 12. The outer diameter of the connecting rod portion 13 is smaller than the outer diameter of the first locking portion 12, so that a first positioning groove 14 is formed between the first connector body 11, the first locking portion 12, and the connecting rod portion 13.

[0064] In this embodiment, when the sleeve 3 retracts, the first locking part 12 can smoothly move into the second moving space 24, while the second locking part 21 can move into the first moving space 15, achieving a fast and smooth separation operation. The smaller outer diameter design of the connecting rod part 13 reduces resistance during separation, making the entire process smoother. The smaller outer diameter of the connecting rod part 13 reduces friction with the sleeve 3 and other components, lowering the difficulty of the separation operation and improving the convenience and efficiency of the operation.

[0065] During the delivery of the stent, when encountering a highly curved blood vessel, the first connector 1 and the second connector 2 may rotate relative to each other. Currently, when the first connector 1 and the second connector 2 rotate relative to each other, they will unlock, causing the stent to be released prematurely and affecting the delivery effect of the stent.

[0066] To address this issue, in some embodiments, the first connector 1 is a cylindrical connector, with the first connector body 11, the connecting rod portion 13, and the first locking portion 12 all being cylindrical, and the first positioning groove 14 being an annular positioning groove. The top surface of the second locking portion 21 is a horizontal surface, and the top surface of the second locking portion 21 is in sliding contact with the outer wall of the connecting rod portion 13.

[0067] In this embodiment, the first connector body 11, the connecting rod portion 13, and the first locking portion 12 are all cylindrical, a shape that facilitates manufacturing. During stent delivery, the sleeve 3 radially limits the first connector 1 and the second connector 2. Even if the first connector 1 and the second connector 2 twist relative to each other, the first locking portion 12, being cylindrical, can still engage with the second positioning groove 22. Similarly, the second locking portion 21, being an annular positioning groove, can still engage with the first positioning groove 14. Therefore, this embodiment can adapt to more complex blood vessel types, and during stent delivery, the first connector 1 and the second connector 2 are less likely to unlock, ensuring the safety of stent release.

[0068] The top surface of the second locking part 21 is a horizontal surface and slides in contact with the outer side wall of the connecting rod part 13, which can provide a uniform friction force distribution and further ensure the stability and consistency during the sliding process.

[0069] In some embodiments, the second connector 2 includes a second connector body 23 and a second locking part 21, and a second positioning groove 22 is disposed between the second connector body 23 and the second locking part 21.

[0070] In some embodiments, the axial length of the first positioning groove 14 is greater than the axial length of the second locking part 21, and the axial length of the second positioning groove 22 is greater than the axial length of the first locking part 12. The first moving space 15 is disposed at a position in the first positioning groove 14 away from the first locking part 12, and the second moving space 24 is disposed at a position in the second positioning groove 22 away from the second locking part 21.

[0071] In this embodiment, when the first connector 1 and the second connector 2 need to be separated, the sleeve 3 retracts, and the second locking part 21 can smoothly disengage from the first positioning groove 14, while the first locking part 12 can also disengage from the second positioning groove 22. Due to the existence of the moving space (the first moving space 15 and the second moving space 24), the separation process is smoother and the resistance is reduced.

[0072] In some embodiments, the height of the second connector body 23 is higher than the height of the second locking part 21, so that when the first connector 1 moves relative to the second connector 2, the first locking part 12 of the first connector 1 is limited.

[0073] In this embodiment, since the height of the second connector body 23 is higher than the height of the second locking part 21, when the first connector 1 moves relative to the second connector 2, the higher part of the second connector body 23 can limit the movement range of the first locking part 12, preventing it from moving excessively. Even if separation is required, the first connector 1 will not suddenly detach due to the limiting effect, ensuring a smooth and safe separation process. On the other hand, the limiting design effectively prevents the first connector 1 from accidentally falling off during the operation, increasing the safety of the operation.

[0074] In some embodiments, the sidewall of the second positioning groove 22 away from the second locking part 21 is configured as a first inclined surface 221, which is inclined downward from the second connector body 23 toward the second locking part 21. When the first locking part 12 moves toward the first inclined surface 221, the end face of the first locking part 12 gradually slides relative to the first inclined surface 221 until the two disengage.

[0075] Firstly, due to the design of the first inclined surface 221, as the first locking part 12 gradually slides relative to the first inclined surface 221, this gradual sliding process allows the two to smoothly disengage, avoiding the impact and damage that may result from sudden separation. Secondly, the design of the first inclined surface 221 reduces the direct friction between the first locking part 12 and the second positioning groove 22, lowering the resistance during the separation process and making the separation operation smoother. Thirdly, the design of the first inclined surface 221 simplifies the separation operation between the first locking part 12 and the second positioning groove 22; the operator only needs to push the first locking part 12 to the distal end to achieve separation, reducing the complexity of the operation.

[0076] The first inclined surface 221 is a multi-segmented inclined surface. The first inclined surface segment near the upper part of the second connector body 23 is a gentle inclined surface, preferably an arc-shaped inclined surface. When the first locking part 12 and the second locking part 21 are separated, the first locking part 12 moves to the position of the gentle inclined surface near the proximal end, which facilitates the disengagement of the first locking part 12.

[0077] In some embodiments, the end face of the second locking part 21 is configured as a second inclined surface 211, which is inclined upward from the second locking part 21 toward the second connector body 23.

[0078] In this embodiment, when the first locking part 12 and the second locking part 21 are separated, the first connector 1 is pushed to the far end, and the inclined second slope 211 can reduce the obstruction effect on the first connector body 11 and produce a shovel-like effect, causing the first locking part 12 and the second locking part 21 to separate.

[0079] More specifically, the second inclined surface 211 is a multi-segmented inclined surface, and the second inclined surface segment near the upper part of the second locking part 21 is a gentle inclined surface, preferably an arc-shaped inclined surface. When the first locking part 12 and the second locking part 21 are separated, the first locking part 12, the connecting rod part 13, and the first connecting body 11 move towards the proximal end, and the first connecting body 11 moves to the position of the gentle inclined surface, which facilitates the disengagement of the first connecting body 11.

[0080] The second inclined surface 211 and the first inclined surface 221 are inclined in the same direction. It should be noted that, taking the first connector 1 being snapped on top of the second connector 2 as an example, "inclined in the same direction" in this embodiment means that the first inclined surface 221 is inclined upward from the far end to the near end, and the second inclined surface 211 is also inclined upward from the far end to the near end. Here, the inclination angles of the first inclined surface 221 and the second inclined surface 211 can be the same or different.

[0081] The distance between the first inclined surface 221 and the second inclined surface 211 is the same as the sum of the lengths of the connecting rod portion 13 and the first locking portion 12. Taking the example of the first connecting member 1 being located at the proximal end of the sleeve 3 and the second connecting member 2 being connected to the support, when the first connecting member 1 moves distally, the distal end face of the first locking portion of the first connecting member 1 abuts against the first inclined surface 221. At this time, the distal end face of the first connecting member body 11 abuts against the second inclined surface 211 (i.e., the proximal end face of the second locking portion 21), creating a shovel-like effect that causes the second connecting member 2 to separate from the locking wire. This design allows the second connecting member 2 to separate quickly and effectively from the first connecting member 1, improving separation efficiency. The shovel effect reduces resistance during the separation process, making the separation operation of the second connecting member 2 from the first connecting member 1 smoother and reducing the risk of damage to surrounding tissues.

[0082] In some embodiments, the side wall of the second positioning groove 22 near the second locking part 21 is configured as a third inclined surface 222. The third inclined surface 222 is arranged opposite to the first inclined surface 221. The third inclined surface 222 is inclined downward from the second locking part 21 toward the second connector body 23. When the first locking part 12 moves toward the third inclined surface 222, the first locking part 12 and the third inclined surface 222 gradually slide relative to each other until they disengage.

[0083] In this embodiment, firstly, due to the design of the third inclined surface 222, when the first connector 1 moves towards its proximal end, the proximal surface of the first connector 1 gradually presses against the third inclined surface 222. This gradual pressing process allows the two to smoothly disengage, avoiding the impact and damage that may result from sudden separation. Secondly, the design of the third inclined surface 222 reduces the direct friction between the first locking part 12 and the third inclined surface 222, reducing the resistance during the separation process between the first locking part 12 and the second positioning groove 22, making the separation operation smoother. Thirdly, the design of the third inclined surface 222 simplifies the separation operation between the first locking part 12 and the second locking part 21. The operator only needs to push the first locking part 12 towards its proximal end to achieve separation, reducing the complexity of the operation.

[0084] More specifically, the third inclined surface 222 is a multi-segmented inclined surface, and the third inclined surface segment near the upper part of the second locking part 21 is a gentle inclined surface, preferably an arc-shaped inclined surface. When the first locking part 12 and the second locking part 21 are separated, the first locking part 12 moves to the position of the gentle inclined surface near its proximal end, which facilitates the disengagement of the first locking part 12.

[0085] Combination Figure 1 As shown, the first connector 1 is disposed inside the cannula 3, and the second connector 2 can be connected to any part of the heart valve prosthesis (including the stent fixation member 4 and the stent), for example, to... Figure 11 The bracket fixing component 4 is connected to the bracket. It should be noted that... Figure 11 The structure shown is merely an example of a connection with the second connector 2; the second connector 2 can also be directly connected to the bracket. The first connector 1 is a guide wire or a locking wire. (Combined) Figure 5 As shown, the second connector 2 may be disposed within the cannula 3. The first connector 1 can be connected to any part of the heart valve prosthesis, such as to the stent fixation member 4, which is connected to the stent. The second connector 2 can also be directly connected to the stent. The second connector 2 is a guide wire or a locking wire. In this embodiment, the positions of the first connector 1 and the second connector 2 can be interchanged to form different connection methods.

[0086] Taking the example of the first connector 1 being disposed inside the sleeve 3 and the second connector 2 being adapted to be connected to the stent, the connection and separation of the valve stent and the connecting assembly in this embodiment will be explained.

[0087] When the valve stent is connected to the connecting assembly, the first connector 1 is inside the cannula 3, with its distal end extending beyond the distal end of the cannula 3, positioning the first locking part 12 of the first connector 1 within the second positioning groove 22. With the constraint of the cannula 3's inner cavity, the cannula 3 is fitted into the position where the first locking part 12 and the second locking part 21 connect. Other second positioning components are connected in the same manner, completing the connection between the valve stent and the connecting mechanism.

[0088] The first method for separating the first connector 1 from the second connector 2: The stent delivery device loads the valve stent and travels through the tortuous blood vessels to the target area. After the stent fixation member 4 completes its positioning (i.e., the stent fixation member 4 is fixed to the position of the blood vessel), when releasing the valve stent, the cannula 3 is retracted proximally, causing the cannula 3 to detach from the connection area between the first connector 1 and the second connector 2. The first connector 1 is then moved distally, achieving separation between the first connector 1 and the second connector 2.

[0089] A second method for separating the first connector 1 from the second connector 2: After the sleeve 3 is disengaged from the connection area between the first connector 1 and the second connector 2, the first connector 1 is moved proximally to achieve separation of the first connector 1 from the second connector 2.

[0090] Example 2

[0091] According to an embodiment of the present invention, in a first aspect, a connecting component is provided, combined with... Figures 6 to 10 As shown, it includes a first connector 1, a second connector 2, and a sleeve 3 (the sleeve in this embodiment has the same structure as the sleeve in embodiment 1, but is not described in this embodiment). Figures 6 to 10 (The sleeve is labeled). The end of the first connector 1 has a first locking part 12 and a first positioning groove 14. The end of the second connector 2 has a second locking part 21 and a second positioning groove 22. The first locking part 12 is engaged with the second positioning groove 22, and the second locking part 21 is engaged with the first positioning groove 14. The sleeve 3 is fitted over the connection area between the first locking part 12 and the second locking part 21, and radially constrains the first locking part 12 and the second locking part 21. The first connector 1 provides a first moving space 15, and the second connector 2 provides a second moving space 24. When the sleeve 3 is retracted from the connection area between the first connector 1 and the second connector 2, and the first connector 1 moves relative to the second connector 2, the first locking part 12 moves into the second moving space 24, and the second locking part 21 moves into the first moving space 15, so that the first locking part 12 and the second locking part 21 are disengaged.

[0092] In some embodiments, combined with Figure 6As shown, the first connecting member 1 is a horizontal connecting member, and the first locking part 12 is located at the top of the first connecting member 1. The first locking part 12 is hook-shaped, and its top surface is horizontal. The second connecting member 2 is a horizontal connecting member, and the second locking part 21 is located at the bottom of the second connecting member 2. The second locking part 21 is hook-shaped, and its bottom surface is horizontal. The first positioning groove 14 is located at the connection between the first locking part 12 and the first connecting member 1. The first moving space 15 is located at the upper part of the first connecting member 1 and communicates with the first positioning groove 14. The second positioning groove 22 is located at the connection between the first locking part 12 and the second connecting member 2. The second moving space 24 is located at the lower part of the second connecting member 2 and communicates with the second positioning groove 22. When the first connecting member 1 and the second connecting member 2 are separated in this embodiment, the first connecting member 1 is moved to the distal end to achieve separation of the first connecting member 1 and the second connecting member 2.

[0093] As an alternative embodiment, combined with Figure 10 As shown, the first connecting member 1 is a horizontal connecting member, and the first locking part 12 is located at the bottom of the first connecting member 1. The first locking part 12 is hook-shaped, and its bottom surface is horizontal. The second connecting member 2 is a horizontal connecting member, and the second locking part 21 is located at the top of the second connecting member 2. The second locking part 21 is hook-shaped, and its top surface is horizontal. The first positioning groove 14 is located at the connection between the first locking part 12 and the first connecting member 1. The first moving space 15 is located at the lower part of the first connecting member 1 and communicates with the first positioning groove 14. The second positioning groove 22 is located at the connection between the first locking part 12 and the second connecting member 2. The second moving space 24 is located at the upper part of the second connecting member 2 and communicates with the second positioning groove 22. When the first connecting member 1 and the second connecting member 2 are separated in this embodiment, the first connecting member 1 is moved towards the proximal end to achieve separation of the first connecting member 1 and the second connecting member 2.

[0094] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A connection component, characterized in that, include: The first connector (1) has a first locking part (12) and a first positioning groove (14) at its end; The second connector (2) has a second locking part (21) and a second positioning groove (22) at its end. The first locking part (12) is engaged with the second positioning groove (22), and the second locking part (21) is engaged with the first positioning groove (14). Sleeve (3), the sleeve (3) is sleeved on the connection area between the first locking part (12) and the second locking part (21), and radially constrains the first locking part (12) and the second locking part (21); The first connector (1) provides a first moving space (15), and the second connector (2) provides a second moving space (24). When the sleeve (3) retracts away from the connection area between the first connector (1) and the second connector (2), and the first connector (1) moves relative to the second connector (2), the first locking part (12) moves into the second moving space (24), and the second locking part (21) moves into the first moving space (15), so that the first locking part (12) and the second locking part (21) are disconnected.

2. The connection component according to claim 1, characterized in that, The first connector (1) includes a first connector body (11), a connecting rod portion (13) and a first locking portion (12). The connecting rod portion (13) is connected between the first connector body (11) and the first locking portion (12). The outer diameter of the connecting rod portion (13) is smaller than the outer diameter of the first locking portion (12) so that the first positioning groove (14) is formed between the first connector body (11), the first locking portion (12) and the connecting rod portion (13).

3. The connection component according to claim 2, characterized in that, The first connector (1) is a columnar connector. The first connector body (11), the connecting rod part (13) and the first locking part (12) are all cylindrical. The first positioning groove (14) is an annular positioning groove. The top surface of the second locking part (21) is a horizontal surface, and the top surface of the second locking part (21) slides in contact with the outer side wall of the connecting rod part (13).

4. The connecting component according to claim 2, characterized in that, The second connector (2) includes a second connector body (23) and a second locking part (21), and the second positioning groove (22) is disposed between the second connector body (23) and the second locking part (21).

5. The connecting component according to claim 4, characterized in that, The axial length of the first positioning groove (14) is greater than the axial length of the second locking part (21), and the axial length of the second positioning groove (22) is greater than the axial length of the first locking part (12). The first moving space (15) is located in the first positioning groove (14) away from the first locking part (12), and the second moving space (24) is located in the second positioning groove (22) away from the second locking part (21).

6. The connecting component according to claim 4, characterized in that, The height of the second connector body (23) is higher than the height of the second locking part (21) so that when the first connector (1) moves relative to the second connector (2), the first locking part (12) of the first connector (1) is limited.

7. The connecting component according to claim 4, characterized in that, The side wall of the second positioning groove (22) away from the second locking part (21) is set as a first inclined surface (221). The first inclined surface (221) is inclined downward from the second connector body (23) toward the second locking part (21). When the first locking part (12) moves toward the first inclined surface (221), the end face of the first locking part (12) and the first inclined surface (221) gradually slide relative to each other until they disengage.

8. The connection component according to claim 7, characterized in that, The end face of the second locking part (21) is configured as a second inclined surface (211), and the second inclined surface (211) and the first inclined surface (221) are inclined in the same direction; The distance between the first inclined plane (221) and the second inclined plane (211) is the same as the sum of the lengths of the connecting rod (13) and the first locking part (12).

9. The connection component according to claim 8, characterized in that, The first inclined surface (221) is a multi-segment inclined surface, and the first inclined surface segment near the upper part of the second connector body (23) is a gentle inclined surface; And / or, the second inclined surface (211) is a multi-segment inclined surface, and the second inclined surface segment near the upper part of the second locking part (21) is a gentle inclined surface.

10. The connection component according to claim 7, characterized in that, The side wall of the second positioning groove (22) near the second locking part (21) is configured as a third inclined surface (222). The third inclined surface (222) is arranged opposite to the first inclined surface (221). The third inclined surface (222) is inclined downward from the second locking part (21) toward the second connecting body (23). When the first locking part (12) moves toward the third inclined surface (222), the first locking part (12) and the third inclined surface (222) gradually slide relative to each other until they disengage.

11. The connection component according to claim 10, characterized in that, The third inclined surface (222) is a multi-segment inclined surface, and the third inclined surface segment near the upper part of the second locking part (21) is a gentle inclined surface.

12. The connection component according to claim 2, characterized in that, The first connector (1) is a horizontal connector, the first locking part (12) is located at the top of the first connector (1), the first locking part (12) is hook-shaped, and the top surface of the first locking part (12) is horizontal; the second connector (2) is a horizontal connector, the second locking part (21) is located at the bottom of the second connector (2), the second locking part (21) is hook-shaped, and the bottom surface of the second locking part (21) is horizontal; the first positioning groove (14) is located at the connection between the first locking part (12) and the first connector (1), the first moving space (15) is located at the upper part of the first connector (1) and communicates with the first positioning groove (14); the second positioning groove (22) is located at the connection between the first locking part (12) and the second connector (2), the second moving space (24) is located at the lower part of the second connector (2) and communicates with the second positioning groove (22); Alternatively, the first connector (1) is a horizontal connector, the first locking part (12) is located at the bottom of the first connector (1), the first locking part (12) is hook-shaped, and the bottom surface of the first locking part (12) is horizontal; the second connector (2) is a horizontal connector, the second locking part (21) is located at the top of the second connector (2), the second locking part (21) is hook-shaped, and the top surface of the second locking part (21) is horizontal; the first positioning groove (14) is located at the connection between the first locking part (12) and the first connector (1), the first moving space (15) is located at the lower part of the first connector (1) and communicates with the first positioning groove (14); the second positioning groove (22) is located at the connection between the first locking part (12) and the second connector (2), the second moving space (24) is located at the upper part of the second connector (2) and communicates with the second positioning groove (22).

13. The connecting component according to any one of claims 1-12, characterized in that, The first connector (1) is disposed inside the sleeve (3), and the second connector (2) is adapted to be connected to the bracket fixing member (4), which is connected to the bracket; Alternatively, the second connector (2) is disposed inside the sleeve (3), and the first connector (1) is adapted to be connected to the bracket fixing member (4), which is connected to the bracket.

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