A support, adjustable elbow, release device and delivery system for an interventional delivery system

Abstract

The application belongs to the technical field of interventional medical instrument equipment, and provides a support of an interventional delivery system, an adjustable elbow pipe, a release device and a delivery system. The support comprises a main body part which can extend along a preset channel, an operation part located at the proximal end of the main body part, and a support part located at the distal end of the main body part and driven by the operation part through the main body part. The support part is a curved structure which can pass through the preset channel and is formed outside the preset channel. The operation part is arranged to control the movement of the main body part, so as to adjust the position of the main body part in the preset channel. The support part is arranged to form the curved structure, so as to facilitate the action linkage between the support part and the external action object, improve the action synchronization between the support part and the external action object in application, and reduce the application influence caused by the action of the external action object.

Description

Technical Field

[0001] This application belongs to the field of interventional medical device technology, specifically, it relates to a support component, adjustable bend, release device and delivery system for an interventional delivery system. Background Technology

[0002] Currently, when valvular heart disease is detected, replacement with an artificial valve is one of the available treatment options. Consequently, numerous delivery systems for artificial heart valve replacement surgery have emerged on the market, and the choices of access methods for valve replacement using these systems are also increasing. However, when the artificial heart valve is near the target replacement site, the release position is affected by the heart's continued beating. This necessitates that the surgeon possess extensive experience to determine the release location and timing, making the procedure quite challenging. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of this application is to provide a support, adjustable bend, release device and delivery system for an interventional delivery system, which can help the release operation of artificial heart valve and reduce the difficulty of the operation.

[0004] The technical means adopted in this application to solve the above-mentioned technical problems are:

[0005] On one hand, this application provides a support member for an interventional delivery system, comprising:

[0006] The main body extends along a preset channel, the operating part is located at the near end of the main body, and the support part is located at the far end of the main body and can be driven by the operating part through the main body;

[0007] The support is a curved structure that can pass through a preset channel and form outside the preset channel.

[0008] In this application, the main body facilitates the placement of the support member within a preset channel and allows for relative sliding between the main body and the preset channel, thereby enabling relative positional changes between the two. The operating part controls the movement of the main body, allowing for positional adjustment. The curved structure of the support member facilitates motion linkage with external objects, improving the synchronization of the support member's movements with external objects and reducing the impact of external object movements on the application.

[0009] Preferably, the curved structure is formed by winding wire.

[0010] In the above preferred embodiment, the bending structure is formed by winding wire, which enables the bending structure to have better elastic deformation performance, thereby improving the application effect.

[0011] Preferably, the bending structure includes multiple layers of coils with deformation gaps formed between the coils.

[0012] In the above preferred embodiment, by setting multiple layers of coils on the curved structure, it is easy to form a cooperation with the operating part, including adjusting the position or number of turns of the coils through the control of the operating part; at the same time, the deformation gap is formed between the coils, which can provide a certain buffering effect when it comes into contact with an external object, thereby further improving the application effect.

[0013] Preferably, the main body and the support part are made of the same wire.

[0014] Alternatively, the main body and the operating part may be made of the same wire;

[0015] Alternatively, the main body, support, and operating parts may be made from the same wire.

[0016] In the above preferred embodiment, by setting the main body, support, and operating parts to be made of the same wire, the structural stability of the manufactured support can be improved.

[0017] Preferably, the operating part includes a gripping member and a wire part fixed to the gripping member;

[0018] The near end of the main body is connected to the wire section; or, the main body and the wire section are the same wire.

[0019] In the preferred embodiment described above, the wire section facilitates the installation and connection between the gripper and the main body of the support member.

[0020] Preferably, the diameter of the gripping member is greater than the diameter of the preset channel.

[0021] In the above preferred embodiment, by setting the diameter of the gripping member to be greater than the diameter of the preset channel, it is possible to avoid the support member losing control of adjustment due to accidental slippage at the operating end during use, or even the entire support member falling to the end where the support part is located, thereby improving application safety.

[0022] Preferably, the support member comprises three members, which are arranged at intervals around a circumference.

[0023] In the above preferred embodiment, by setting the support member to include three members, and having the three support members spaced apart around a circumference, the support stability of the support member in application can be improved.

[0024] Preferably, the device includes a locking member for positioning the main body portion, the locking member being disposed on the sliding path of the main body portion.

[0025] In the above preferred embodiment, the locking member can be used to limit the current position of the main body so that the support part can stay in the desired position.

[0026] Preferably, the main body is inserted through the locking member, and the locking member and the main body are sealed together.

[0027] In the above preferred embodiment, by setting the locking member and the main body in a sealed manner, the end where the support part is located and the end where the operating part is located can be effectively blocked.

[0028] On the other hand, this application provides an adjustable bend in an interventional delivery system, including a control bend and the support member described above;

[0029] The control tube is provided with the preset channel, and the main body of the support extends into the preset channel.

[0030] In the above-mentioned application scheme, by setting the preset channel on the control bend tube, it is convenient to install the support on the control bend tube, so that the adjustable bend tube can achieve bending deformation through the control bend tube in application, and the support can be positioned and supported on the basis of bending deformation, resulting in better performance.

[0031] Preferably, the bending control tube has three preset channels in the circumferential direction, and the main body of the support member extends from each preset channel.

[0032] In the above preferred embodiment, by setting three preset channels on the adjustable bend tube, three support members can be provided, thereby facilitating the improvement of the support stability provided by the support members in the application of the adjustable bend tube.

[0033] In another aspect, this application provides a release device for an interventional delivery system, including a guide tube, a transmission tube assembly, a valve capsule connected to the distal end of the transmission tube assembly, a release handle connected to the proximal end of the transmission tube assembly for controlling the release state of the valve capsule, and the aforementioned support member.

[0034] The transmission tube assembly passes through the guide tube;

[0035] The preset channel is set on the guide tube.

[0036] In the aforementioned application scheme, the guide tube facilitates the installation of the transmission tube assembly and also serves as a carrier for the installation of the support component. The valve capsule provides storage space for the temporary storage of the artificial valve prosthesis. The release handle controls the release state of the valve capsule, facilitating the release of the artificial valve prosthesis. During the release of the artificial valve prosthesis, the support component provides auxiliary support between the release device and the external target, reducing the difficulty of releasing the artificial valve prosthesis.

[0037] Preferably, the guide tube has three preset channels in the circumferential direction, and the main body of the support member extends from each preset channel.

[0038] In the preferred embodiment described above, by providing three preset channels on the guide tube, three support members can be provided, thereby facilitating the improvement of the support stability provided by the support members during the application of the release device.

[0039] On the other hand, this application provides an interventional delivery system which is provided with an adjustable bend as described above;

[0040] Alternatively, it may be equipped with a release device as described above.

[0041] Preferably, the conveying system includes the adjustable bend and the second release device as described above;

[0042] The adjustable bend also includes an adjustment handle for controlling the bending state of the bend.

[0043] The second release device includes a second transmission tube assembly, a second valve capsule connected to the distal end of the second transmission tube assembly, and a second release handle connected to the proximal end of the second transmission tube assembly for controlling the release state of the second valve capsule;

[0044] The second transmission tube assembly passes through the bending control tube, the second valve capsule is located at the distal end of the bending control tube, and the second release handle is located at the proximal end of the bending adjustment handle.

[0045] In the above preferred embodiment, the adjustable bend and the second release device enable the formed interventional delivery system to simultaneously perform functions such as artificial valve prosthesis release, bend adjustment of the release position, and auxiliary support provided by the support member. The overall application effect is better, which makes it easier for the operator to judge the release position and timing of the artificial heart valve prosthesis, reducing the difficulty of the operation and improving the operation effect. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a structural schematic diagram of the support component of this application.

[0048] Figure 2 This is a schematic diagram illustrating the state of the support components used in this application.

[0049] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0050] Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0051] Figure 5 This is a schematic diagram of the adjustable bend in this application.

[0052] Figure 6 This is a cross-sectional structural diagram of the adjustable bend in this application.

[0053] Figure 7 This is a cross-sectional view of the bending handle of this application.

[0054] Figure 8 This is a schematic diagram of the release device of this application.

[0055] Figure 9 This is a cross-sectional view of the release handle of this application.

[0056] Figure 10 This is a schematic diagram of the internal structure of the release handle in this application.

[0057] Figure 11 This is a cross-sectional view of the valve capsule of this application.

[0058] Figure 12 This is a schematic diagram of the conveying system of this application.

[0059] Figure 13 This is a cross-sectional structural diagram of the conveying system of this application.

[0060] Marker explanation:

[0061] 1-Support component, 10-Preset channel, 11-Main body, 12-Operating part, 121-Holding component, 122-Wire part, 13-Support component, 131-Bending structure, 132-Deformation gap, 14-Locking component;

[0062] 2-Adjustable bend, 21-Bend control tube, 22-Bend adjustment handle, 221-Fixing part, 222-Third slider, 223-Third knob;

[0063] 3-Release device, 31-Guide tube, 32-Transmission tube assembly, 321-Middle tube, 322-Inner tube, 323-Outer tube, 33-Valve capsule, 330-Inner chamber, 331-Proximal shell, 332-Distal shell, 333-Valve carrier, 34-Release handle, 341-Handle body, 3411-First slide groove, 3412-Second slide groove, 342-First slider, 343-First knob, 344-Second slider, 345-Second knob;

[0064] 4-Second release device, 42-Second transmission tube assembly, 43-Second valve capsule, 44-Second release handle. Detailed Implementation

[0065] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0066] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0067] In addition, the terms "far end" and "proximal end" are mainly based on the operator. That is, the end closer to the operator or farther from the object being operated can be considered the "proximal end", while the end farther from the operator or closer to the object being operated can be considered the "far end".

[0068] Currently, in artificial heart valve replacement surgery, although there are various approaches for valve replacement via delivery systems, the release position of the artificial heart valve prosthesis is affected by the beating of the heart as it approaches the target replacement site. This necessitates extensive experience from the surgeon to accurately determine the release location and timing, making the procedure quite challenging. Therefore, addressing the influence of the beating heart on valve prosthesis release remains a critical challenge for the industry.

[0069] In response, this embodiment provides a support component, adjustable bend, release device, and delivery system for an interventional delivery system. As one of its effects, this embodiment can effectively reduce the impact of heartbeat on the release of the artificial heart valve prosthesis, thus reducing the difficulty of the procedure.

[0070] like Figure 1-13 As shown, this embodiment provides a support member 1 for an interventional delivery system. The support member 1 includes a main body 11, an operating part 12, and a supporting part 13. The main body 11 can extend along a preset channel 10, the operating part 12 is located at the proximal end of the main body 11, and the supporting part 13 is located at the distal end of the main body 11.

[0071] In some embodiments, such as Figure 2 As shown, the main body 11 extends along the length direction of the preset channel 10, and the main body 11 can slide relative to the preset channel 10; and the main body 11 facilitates the placement of the support member 1 within the preset channel 10.

[0072] In some embodiments, such as Figure 2 As shown, the operation unit 12 is located outside the preset channel 10. The operation unit 12 can be used to control the relative sliding between the main body 11 and the preset channel 10, thereby realizing the relative position change between the two and adjusting the position of the main body 11.

[0073] In some embodiments, such as Figure 2As shown, the support portion 13 is located outside the preset channel 10. When the operating part 12 drives the main body 11 to slide, it will synchronously drive the support portion 13 to move. The support portion 13 includes a formed curved structure 131. When the operating part 12 drives the main body 11 and the support portion 13 to move towards the proximal end, the support portion 13 or the formed curved structure 131 can also pass through the preset channel 10. The support portion 13, through the formed curved structure 131, can easily form a movement linkage with an external object. For example, in interventional artificial heart valve replacement surgery, the bending structure 131 can abut against the inner wall of the heart to transmit the heart's rhythm through the bending structure 131, thereby improving the synchronization of the support portion 1 with the heart during application and reducing the impact of the heart's beating on the artificial heart valve replacement surgery.

[0074] As one example of its application, such as Figure 1 , Figure 2 As shown, the bent structure 131 can be formed by winding wire, and the wire can be a metal wire. By forming the bent structure 131 by winding wire, the bent structure 131 can have better elastic deformation performance, thereby improving the application effect.

[0075] As one example of its application, such as Figure 1 , Figure 2 As shown, the curved structure 131 includes multiple layers of coils, with deformation gaps 132 formed between the coils. By providing multiple layers of coils on the curved structure 131, it is easy to form a cooperation with the operating part 12, including adjusting the position or number of turns of the coils through the control of the operating part 12; at the same time, the deformation gaps 132 formed between the coils can provide a certain buffering effect when in contact with external objects, such as avoiding the impact caused by rigid contact when in contact with the inner wall of the heart.

[0076] In some embodiments, the curved structure 131 may be made of wire wound in a spiral shape, such as... Figure 1 , Figure 2 As shown.

[0077] In some embodiments, the diameter of the formed curved structure 131 is greater than the diameter of the preset channel 10; therefore, when the curved structure 131 passes through the preset channel 10, it can be understood that the curved structure 131 in the bent state is temporarily straightened in the preset channel 10 by the pulling of the operating part 12, so that it can pass through the preset channel 10 smoothly.

[0078] As one application example, in this embodiment, the main body 11 and the support 13 can be made from the same wire; or, the main body 11 and the operating part 12 can be made from the same wire; or, the main body 11, the support 13, and the operating part 12 are all made from the same wire. This facilitates improved structural stability of the manufactured support 1, and reduces or even eliminates the need for connection nodes on the support 1, allowing for smoother sliding of the support 1 within the preset channel 10.

[0079] As one example of its application, such as Figure 4 As shown, the operation unit 12 includes a gripping member 121 and a wire part 122 fixed to the gripping member 121; the wire part 122 facilitates the installation connection between the gripping member 121 and the main body part 11 of the support member 1.

[0080] In some embodiments, the proximal end of the main body 11 is connected to the wire portion 122, and the gripper 121 is sleeved on the wire portion 122.

[0081] In some embodiments, the main body 11 and the wire part 122 are made of the same wire. In this case, it can be understood that the gripping member 121 is sleeved on the main body 11 to form the operating part 12.

[0082] As one application example, in this embodiment, the diameter of the grip 121 is greater than the diameter of the preset channel 10. By setting the diameter of the grip 121 to be greater than the diameter of the preset channel 10, it is possible to avoid the support 1 from losing control of its adjustment due to accidental slippage at the operating part 12 during use, or even the entire support 1 falling to the end where the support part 13 is located, thereby improving application safety.

[0083] As one application example, in this embodiment, the support member 1 is provided with three members, and the three support members 1 are arranged at intervals around a circumference. By providing three support members 1 and arranging them at intervals around a circumference, the support stability of the support members 1 in application can be improved. This can be referred to... Figure 5 , Figure 8 and Figure 12 As shown.

[0084] In some embodiments, the support member 1 may be provided as two members, which are evenly arranged around a circumference.

[0085] In some embodiments, the support member 1 may be configured as four or more, in which case the support member 1 is evenly arranged around a circumference.

[0086] As one application example, a locking member 14 is also provided on the sliding path of the main body 11. By providing the locking member 14, the current position of the main body 11 can be easily limited so that the support part 13 can stay in the required position.

[0087] In some embodiments, the main body 11 passes through the locking member 14, and the locking member 14 is sealed to the main body 11. For example, the locking member 14 can be made of a soft rubber material, and when the main body 11 passes through the locking member 14, the locking member 14 is sealed to the main body 11. By making the locking member 14 and the main body 11 sealed, the end where the support 13 is located and the end where the operating part is located can be effectively isolated; for example, when applied in interventional artificial heart valve replacement surgery, it can prevent blood from passing through the preset channel 10 and leaking from the proximal end of the support 1.

[0088] In addition, such as Figure 5-7 As shown, this embodiment provides an adjustable bend 2 for an interventional delivery system, including a control bend 21 and the aforementioned support member 1; the control bend 21 is provided with the preset channel 10, and the main body 11 of the support member 1 extends into the preset channel 10.

[0089] By setting the preset channel 10 on the control bend tube 21, the support member 1 can be easily installed on the control bend tube 21. In this way, the adjustable bend tube 2 can be bent and deformed through the control bend tube 21 during application, and the support member 1 can be positioned and supported based on the bending deformation, resulting in better performance.

[0090] As one application example, the adjustable bend tube 21 has three preset channels 10 arranged in the circumferential direction, and each preset channel 10 extends a main body 11 of a support member. By providing three preset channels 10 on the adjustable bend tube 21, three support members 1 can be installed, thereby improving the support stability provided by the support members 1 during application, such as... Figure 5 As shown.

[0091] On the other hand, such as Figure 8-11 As shown, this embodiment also provides a release device 3 for an interventional delivery system. The release device 3 includes a guide tube 31, a transmission tube assembly 32, a valve capsule 33, a release handle 34, and the support member 1 described above.

[0092] In some embodiments, the guide tube 31 facilitates the installation of the transmission tube assembly 32, for example, by passing the transmission tube assembly 32 through the guide tube 31; at the same time, the guide tube 31 can also serve as a carrier to facilitate the installation of the support member 1.

[0093] As one application example, the guide tube 31 has three preset channels 10 arranged in the circumferential direction, and each preset channel 10 extends a main body 11 of a support member 1. By providing three preset channels 10 on the guide tube 31, three support members 1 can be provided, thereby improving the support stability provided by the support members 1 in the application of the release device 3, such as... Figure 8 As shown.

[0094] In some embodiments, such as Figure 11 As shown, the valve capsule 33 includes a proximal shell 331, a distal shell 332, and a valve carrier 333. An inner chamber 330 is formed by the proximal shell 331 and the distal shell 332, and the valve carrier 333 is disposed within this inner chamber 330. The artificial heart valve prosthesis is disposed on the valve carrier 333. The valve capsule 33 provides storage space for the temporary storage of the artificial heart valve prosthesis.

[0095] In some embodiments, such as Figure 9 As shown, the transmission tube assembly 32 includes a middle tube 321, an inner tube 322, and an outer tube 323. The inner tube 322, middle tube 321, and outer tube 323 are coaxially sleeved together, and relative movement is possible between the inner tube 322 and the middle tube 321, and between the outer tube 323 and the middle tube 321. The valve carrier 333 is connected to the distal end of the middle tube 321, and the proximal housing 331 and distal housing 332 are respectively connected to the distal ends of the outer tube 323 and the inner tube 322. The relative movement between the proximal housing 331 and the valve carrier 333 can be driven by controlling the relative sliding between the outer tube 323 and the middle tube 321. Generally, the proximal housing 331 moves towards the proximal side, allowing the valve carrier 333 to disengage from the inner chamber 330, thereby facilitating the release of the artificial heart valve prosthesis. Meanwhile, the relative sliding between the inner tube 322 and the middle tube 321 can be controlled to drive the relative movement between the distal housing 332 and the valve carrier 333. Generally, the distal housing 332 moves toward the distal side so that the valve carrier 333 is dislodged from the range of the inner chamber 330, thereby facilitating the release operation of the artificial heart valve prosthesis.

[0096] In some embodiments, continue to refer to Figure 9 As shown, the release handle 34 can be used to control the release state of the valve capsule 33. As one application example, the release handle 34 includes a handle body 341, a first slider 342, a first knob 343, a second slider 344, and a second knob 345. The guide tube 31 is located at the distal end of the handle body 341. Both the first slider 342 and the second slider 344 can slide relative to the handle body 341. The first knob 343 is convexly connected to the first slider 342 to control the sliding of the first slider 342, and the second knob 345 is convexly connected to the second slider 344 to control the sliding of the second slider 344.

[0097] In some embodiments, such as Figure 9 , Figure 10 As shown, the handle body 341 is provided with a first slide groove 3411 for mounting the first slider 342 and a second slide groove 3412 for mounting the second slider 344. The first slider 342 is slidably disposed in the first slide groove 3411 and the second slider 344 is slidably disposed in the second slide groove 3412.

[0098] In some embodiments, external threads are provided on the outer periphery of the first slider 342 and the second slider 344, and matching internal threads are provided on the inner side of the first knob 343 and the second knob 345. The first slider 342 and the first knob 343, and the second slider 344 and the second knob 345 are connected by threaded transmission.

[0099] In some embodiments, the first slider 342 is connected to the proximal end of the outer tube 323, the proximal end of the middle tube 321 is connected to the handle body 341, and the second slider 344 is connected to the proximal end of the inner tube 322. During operation, the first slider 342 can be moved by turning the first knob 343, thereby moving the outer tube 323 and achieving relative separation or proximity between the proximal housing 331 and the valve carrier 333. Furthermore, the second slider 344 can be moved by turning the second knob 345, thereby moving the inner tube 322 and achieving relative separation or proximity between the distal housing 332 and the valve carrier 333. Repeated adjustments in this manner facilitate the determination of the release position of the artificial heart valve prosthesis and enable its release.

[0100] During the release of the artificial heart valve prosthesis, the support member 1 can provide auxiliary support between the release device 3 and the external target. For example, when applied in the replacement surgery of the artificial heart valve prosthesis, the support member 1 can provide abutment contact and form support between the release device 3 and the inner wall of the heart, so that the artificial heart valve prosthesis can maintain a certain rhythmic relationship with the heartbeat when it is released, thereby reducing the impact of the heartbeat on the release operation and reducing the difficulty of releasing the artificial heart valve prosthesis.

[0101] Furthermore, in this embodiment, such as Figure 12 , 13 As shown, an interventional conveying system is also provided, which may be equipped with the adjustable bend 2 as described above; or, may be equipped with the release device 3 as described above.

[0102] As one application example, in this embodiment, the conveying system includes the adjustable bend 2 and the second release device 4 as described above. Here, the second release device 4 has a similar structure to the release device 3 but differs in that the support member 1 is directly mounted on the release device 3, while the second release device 4 does not have the support member 1 directly mounted on it. In this case, the support member 1 in the conveying system is mounted on the adjustable bend 2.

[0103] In some embodiments, the adjustable bend tube 2 further includes a bending handle 22, which can be used to control the bending state of the control bend tube 21. As one application example, the bending handle 22 includes a fixing part 221, a third slider 222, and a third knob 223. The proximal end of the control bend tube 21 is connected to the fixing part 221, the third slider 222 is slidably disposed on the fixing part 221, and the third knob 223 is kinetically connected to the third slider 222 to control the sliding movement of the third slider 222.

[0104] In some embodiments, the outer periphery of the third slider 222 is provided with an external thread, and the inner side of the third knob 223 is provided with a matching internal thread, and the third slider 222 and the third knob 223 are connected by a threaded transmission.

[0105] In some embodiments, a steel wire (not shown in the figure) is provided inside the bending control tube 21, and the proximal end of the steel wire is connected to the third slider 222. During operation, the third slider 222 can be moved by rotating the third knob 223, and the third slider 222 pulls the steel wire to control the bending deformation of the bending control tube 21.

[0106] In some embodiments, the locking member 14 is installed at the proximal end of the fixing portion 221.

[0107] In some embodiments, the adjustable bend 2 is disposed at the distal end of the second release device 4.

[0108] In some embodiments, the second release device 4 includes a second transmission tube assembly 42, the structure of which may be consistent with that of the transmission tube assembly 32 described above; the second transmission tube assembly 42 is inserted into the control bend tube 21.

[0109] In some embodiments, the second release device 4 includes a second valve capsule 43, wherein the structure of the second valve capsule 43 may be consistent with the structure of the valve capsule 33 described above; the second valve capsule 43 is located at the distal end of the control tube 21.

[0110] In some embodiments, the second release device 4 includes a second release handle 44, the structure of which may be consistent with that of the release handle 34 described above; the second release handle 44 is located at the proximal end of the bending handle 22.

[0111] By using the adjustable bend 2 and the second release device 4, the resulting interventional delivery system can simultaneously perform functions such as artificial heart valve prosthesis release, bend adjustment of the release position, and auxiliary support provided by the support member 1. The overall application effect is better, which makes it easier for operators to judge the release position and timing of the artificial heart valve prosthesis, reducing the difficulty of the operation and improving the operation effect.

[0112] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A support for an interventional delivery system, characterized by, include: The main body extends along a preset channel, the operating part is located at the near end of the main body, and the support part is located at the far end of the main body and can be driven by the operating part through the main body; The support portion is a curved structure that can pass through a preset channel and form outside the preset channel; The bending structure is a multi-layered coil formed by winding wire, with deformation gaps formed between the coils; The support member further includes a locking member for positioning the main body, the locking member being disposed on the sliding path of the main body.

2. The support for an interventional delivery system of claim 1, wherein, The main body and the support part are made of the same wire. Alternatively, the main body and the operating part may be made of the same wire; Alternatively, the main body, support, and operating parts may be made from the same wire.

3. A support for an interventional delivery system according to claim 2, wherein, The operating part includes a gripping component and a wire part fixed to the gripping component; The near end of the main body is connected to the wire section; or, the main body and the wire section are the same wire.

4. The support for an interventional delivery system of claim 3, wherein, The diameter of the grip is greater than the diameter of the preset channel.

5. The support for an interventional delivery system of claim 3, wherein, The support consists of three supports, which are spaced apart around a circumference.

6. The support member of the interventional conveying system according to claim 1, characterized in that, The main body is inserted through the locking member, and the locking member and the main body are sealed.

7. An adjustable bend in an interventional conveying system, characterized in that, Includes the control tube and the support member according to any one of claims 1-6; The control tube is provided with the preset channel, and the main body of the support extends into the preset channel.

8. The adjustable bend in the interventional conveying system according to claim 7, characterized in that, The bending control tube has three preset channels in the circumferential direction, and the main body of the support member extends from each preset channel.

9. A release device for an interventional delivery system, characterized in that, It includes a guide tube, a transmission tube assembly, a valve capsule connected to the distal end of the transmission tube assembly, a release handle connected to the proximal end of the transmission tube assembly for controlling the release state of the valve capsule, and a support member as described in any one of claims 1-6. The transmission tube assembly passes through the guide tube; The preset channel is set on the guide tube.

10. The release device of the interventional delivery system according to claim 9, characterized in that, The guide tube has three preset channels in the circumferential direction, and the main body of the support member extends from each preset channel.

11. An interventional delivery system, characterized in that, It is equipped with an adjustable bend as described in claim 7 or 8 above; Alternatively, it may be provided with a release device as described in claim 9 or 10 above.

12. The conveying system according to claim 11, characterized in that, The conveying system includes the adjustable bend and the second release device as described in claim 7 or 8 above. The adjustable bend also includes an adjustment handle for controlling the bending state of the bend. The second release device includes a second transmission tube assembly, a second valve capsule connected to the distal end of the second transmission tube assembly, and a second release handle connected to the proximal end of the second transmission tube assembly for controlling the release state of the second valve capsule; The second transmission tube assembly passes through the bending control tube, the second valve capsule is located at the distal end of the bending control tube, and the second release handle is located at the proximal end of the bending adjustment handle.

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