A valve delivery system

Abstract

A valve delivery system includes a valve with a fixing part (1) and a valve delivery device. The valve delivery device includes a retraction assembly (3) and an embolic wire assembly (2). The retraction assembly (3) is provided with multiple fixing claws (31), the fixing claws (31) having different dimensions in the axial direction of the valve delivery device. The fixing claws (31) are provided with limit holes (32), through which the fixing part (1) can pass. The embolic wire assembly (2) is provided with multiple embolic wires (21), the embolic wires (21) having the same dimension in the axial direction of the valve delivery device. When the fixing part (1) passes through the limiting hole (32) and the embolism (21) passes through the fixing hole (11) of the fixing part (1), the valve is in a connected state. When the embolism (21) moves along the axial direction of the valve delivery device, the embolism (21) can disengage from the fixing claws (31) of different lengths from long to short in sequence. When all the fixing claws (31) are disengaged from the valve, the valve is in a released state. This is used to realize the step-by-step release of the valve, thereby reducing the possibility of bouncing, displacement and injury to the human body during valve release, and improving the stability of valve release.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a valve delivery system. Background Technology

[0002] With the development of medical technology, heart valve disease can be treated by implanting heart valves. A self-expanding valve is an artificial valve that can be rolled up and shrunk outside the body. After being delivered to a preset position in the human body by an implantation device, it can automatically expand and unfold to achieve the effect of support and expansion. However, after the valve is released, it detaches from the implantation device and bounces away, which can easily cause the valve to shift or even damage the human body.

[0003] Application content

[0004] This application provides a valve delivery system to solve the problem of displacement due to bouncing during valve release.

[0005] This application provides a valve delivery system, which includes a valve having multiple fixing parts and a valve delivery device, the valve delivery device comprising:

[0006] The retraction assembly is provided with multiple fixing claws, the multiple fixing claws having different dimensions in the axial direction of the valve delivery device, and the fixing claws being provided with limit holes, through which the fixing part can pass;

[0007] An embolic assembly, wherein the embolic assembly is provided with multiple emboli, the emboli having the same dimension in the axial direction of the valve delivery device;

[0008] When the fixing part passes through the limiting hole and the embolism passes through the fixing hole of the fixing part, the valve is in a connected state.

[0009] As the embolus moves along the axial direction of the valve delivery device, the embolus can disengage from the fixing claws of different lengths from long to short, until all the fixing claws disengage from the fixing part, at which point the valve is in a released state.

[0010] The valve delivery system provided in this application embodiment is used for valve implantation. The valve delivery system includes a valve and a valve delivery device, wherein the valve can be a self-expanding valve. The valve delivery device can deliver the valve to a preset position in the human body. When the valve reaches the preset position, the valve delivery device can release the valve, and the valve can achieve the effect of expansion and support. Specifically, the valve has a fixing part with fixing holes. The fixing part is provided with fixing holes. The valve delivery device includes a retraction component and an embolus component. The retraction component is provided with multiple fixing claws, and the embolus component is provided with multiple embolus. The fixing claws are provided with limit holes. The multiple fixing claws are arranged circumferentially along the retraction component to fix the valve from different directions. At least a portion of the fixing part can pass through the limit holes. At this time, the embolus passes through the fixing holes respectively, thereby connecting the fixing part and the fixing claws, realizing the connection between the valve and the valve delivery device. At this time, the valve is in a connected state. When the valve delivery device delivers the valve to the preset position, the embolus assembly can be moved to disengage the embolus from the fixing hole. The fixing claws have different dimensions along the length of the valve delivery device, while the embolus is the same length. Therefore, during the movement of the embolus, the fixing parts connected to the fixing claws of different lengths are released sequentially. The embolus disengages from the longer fixing claw first, and the fixing parts connected to the longer fixing claw are also released first. As the embolus assembly moves, different fixing parts are released sequentially, achieving step-by-step valve release. Compared to the direct release method often used in existing valve technologies, where the valve and valve delivery device directly detach from each other, the valve's elasticity causes it to unfold directly during release. This significant and rapid deformation can lead to valve displacement relative to the preset position, potentially causing injury. The valve delivery device provided in this application allows for step-by-step valve release, reducing the magnitude of deformation during valve release, thus facilitating valve implantation control and minimizing the possibility of valve displacement and injury.

[0011] In one possible implementation, the retraction component is provided with four fixing claws arranged circumferentially along the retraction component. The fixing claws include a first fixing claw, a second fixing claw, a third fixing claw, and a fourth fixing claw. The length of the first fixing claw is greater than the length of the second fixing claw, the length of the second fixing claw is greater than the length of the third fixing claw, and the length of the fourth fixing claw is equal to the length of the second fixing claw.

[0012] Multiple fixing claws are arranged circumferentially along the retraction assembly. These fixing claws include a first fixing claw, a second fixing claw, a third fixing claw, and a fourth fixing claw. The fixing claws can simultaneously connect to the valve's fixing portion from different directions, thus maintaining stability when the valve is in the connected state. Specifically, the fixing claws have different lengths. When the thimble assembly moves and the thimble disengages from the fixing hole, the valve separates from the first fixing claw, partially releasing the valve. The second and fourth fixing claws are of the same length, causing the valve to disengage from both simultaneously, releasing the fixing from both sides of the valve at the same time. This reduces the possibility of the valve shifting to one side during release. Finally, the valve disengages from the shortest fixing claw, the third fixing claw, and the valve is completely released. This embodiment of the application achieves step-by-step disengagement of the valve from the fixing claws by setting fixing claws of different lengths, reducing the deformation amplitude of the valve during each release step, making the valve release more stable, and reducing the possibility of the valve bouncing during release.

[0013] In one possible implementation, the first fixing claw, the second fixing claw, the third fixing claw, and the fourth fixing claw are arranged sequentially along the circumference of the retraction assembly.

[0014] When the valve is released, the first retaining claw disengages from the valve, allowing a portion of the valve to be released. At this time, the second, third, and fourth retaining claws remain connected to the valve, with the third retaining claw positioned adjacent to and between the second and fourth retaining claws. The second and fourth retaining claws are of the same length and secure the valve from both sides, ensuring stability after the first retaining claw is released. Furthermore, the release of the second and fourth retaining claws from both sides of the valve further unblocks the valve, resulting in a more balanced force and more stable release.

[0015] In one possible implementation, the valve delivery device includes a defilament device and a defilament connecting tube, one end of which is connected to the embolus assembly and the other end of which is connected to the defilament device, which is movable along the axial direction of the valve delivery device.

[0016] The unwinding device is equipped with a handle and is connected to the embolization assembly via an unwinding connecting tube. When the valve delivery device delivers the valve into the human body, the unwinding device facilitates the movement of the embolization assembly, thereby enabling the movement of the embolization to control the release of the valve.

[0017] In one possible implementation, the valve delivery device includes a locking device capable of locking the defilament device and restricting its movement in the axial direction of the valve delivery device.

[0018] The locking device is located at the end of the defilothing device away from the wire-locking assembly. The locking device may include a locking groove and a locking member. Part of the locking member can extend into the locking groove, and another part of the locking member protrudes relative to the locking groove, thereby restricting the defilothing device from moving away from the wire-locking assembly. After the locking member disengages from the locking groove, it releases the locking on the defilothing device. The locking device can reduce the possibility of misoperation and reduce the risk of premature valve release.

[0019] In one possible implementation, the locking device includes a first locking member and a second locking member, the first locking member and the second locking member being arranged along the axial direction of the valve delivery device, and the distance between the first locking member and the defilament device being less than the distance between the second locking member and the defilament device.

[0020] The locking device includes a first locking element and a second locking element. The distance between the first locking element and the unwinding device is less than the distance between the second locking element and the unwinding device. This can be achieved by setting the sizes of the first and second locking elements separately or by placing them in different installation positions within the locking device. The first and second locking elements restrict the movement of the unwinding device by abutting against it, thus achieving the locking effect. When the first locking element is released, the unwinding device can move to the position abutting against the second locking element, causing partial release of the valve. When the second locking element is released, the unwinding device can continue to move, causing complete release of the valve. By using the first and second locking elements, the valve can be released in a distributed manner, reducing the possibility of valve bounce during release and minimizing the possibility of premature valve release due to misoperation. For example, when the unwinding device comes into contact with the first locking member, the valve cannot be released and the valve remains connected. When the first locking member is released, the unwinding device can move, causing the valve to separate from the first fixing claw, thus partially releasing the valve. When the second locking member is released, the unwinding device can continue to move, causing the valve to disengage from both the second and fourth fixing claws, and finally from the third fixing claw, thus completely releasing the valve.

[0021] In one possible implementation, the retraction assembly is provided with a through hole through which the stud wire can pass and the fixing hole.

[0022] The embolic wire assembly can move axially along the valve delivery device. The embolic wire assembly is located on the side of the retraction assembly away from the valve. A through-hole extends through the retraction assembly along the axial direction of the valve delivery device. The embolic wire can pass through the through-hole and extend into the valve's fixing hole, thus preventing the valve from disengaging and keeping the valve in a connected state. When the embolic wire assembly moves away from the retraction assembly, the embolic wire can move within the through-hole, thereby disengaging from the fixing hole. The valve is no longer restricted by the embolic wire and can unfold under its own elastic force. The through-hole and fixing claw are correspondingly arranged, and the through-hole guides the embolic wire, ensuring accurate engagement between the embolic wire and the valve's fixing hole, reducing the possibility of embolic wire deviation.

[0023] In one possible implementation, the retraction component is provided with a mounting groove, the fixing claw is disposed in the mounting groove, the mounting groove communicates with the clearance portion, and the mounting groove is correspondingly disposed with the through hole.

[0024] The mounting slot and the fixing claw are correspondingly provided, and the mounting slot and the clearance part are connected. When the valve is in the connected state, at least part of the fixing claw can be embedded in the mounting slot, so that the fixing claw does not protrude relative to the surface of the retraction component, which facilitates the storage of the retraction component, thereby facilitating the valve delivery device to deliver the valve into the human body. The limiting hole can be located in the clearance part, which facilitates the fixing part to extend into the limiting hole and cooperate with the stud wire.

[0025] In one possible implementation, the retraction assembly is provided with a clearance portion, which is located at one end of the retraction assembly away from the bolt assembly. The clearance portion is used to provide space for the fixing portion to extend into the limiting hole, and the clearance portion communicates with the through hole.

[0026] The clearance portion is located on the side of the retraction assembly near the axial direction of the fixed claw. The clearance portion allows the fixed claw to extend out of the inner wall of the through hole. When the fixed portion extends into the limiting hole, the fixed portion can be bent in the direction near the axis of the retraction assembly. At least a part of the fixed portion can extend into the clearance portion, so that the fixing hole can cooperate with the bolt wire.

[0027] In one possible implementation, the valve delivery system includes an outer tube and a rotating wheel assembly, the rotating wheel assembly being movable along the axial direction of the valve delivery device to drive the outer tube to move and release the valve.

[0028] The outer tube is used to fix and store the valve. The rotating wheel assembly is located at the end of the delivery system away from the valve. The rotating wheel assembly includes threads. When the rotating wheel assembly is rotated, it can move along the axial direction of the valve delivery device, thereby driving the outer tube to move, releasing the restriction on the valve, and thus releasing the valve. Using the rotating wheel assembly for control can improve the accuracy of the outer tube release.

[0029] This application provides a valve delivery system, which includes a valve with a fixing part and a valve delivery device. The valve delivery device includes a retraction assembly and an embolic wire assembly. The retraction assembly has multiple fixing claws with different dimensions along the axial direction of the valve delivery device. Each fixing claw has a limiting hole through which the fixing part can pass. The embolic wire assembly has multiple emboli with the same dimensions along the axial direction of the valve delivery device. When the fixing part passes through the limiting hole and the emboli pass through the fixing hole of the fixing part, the valve is in a connected state. When the emboli move along the axial direction of the valve delivery device, the emboli can disengage from the fixing claws of different lengths from long to short until all fixing claws disengage from the valve, at which point the valve is in a released state. This system enables the phased release of the valve, thereby reducing the possibility of bouncing, displacement, and injury to the human body during valve release, and improving the stability of valve release.

[0030] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0031] Figure 1 A schematic diagram of the valve delivery device provided in this application;

[0032] Figure 2 This is a schematic diagram of the structure of the stud assembly provided in this application;

[0033] Figure 3 A schematic diagram of the structure of the pullback component provided in this application;

[0034] Figure 4 A schematic diagram illustrating the connection between the fixing part and the fixing claw provided in this application;

[0035] Figure 5 This is a schematic diagram of the structure of the defilament device provided in this application;

[0036] Figure 6 This is a schematic diagram of the introductory device provided in this application.

[0037] Figure label:

[0038] 1-Fixing part;

[0039] 11-Fixing hole;

[0040] 2-Stapling assembly;

[0041] 21-Stem wire;

[0042] 3-Retreat component;

[0043] 31-Fixing claw;

[0044] 311 - First fixing claw;

[0045] 312 - Second fixing claw;

[0046] 313 - Third fixing claw;

[0047] 314 - Fourth fixing claw;

[0048] 32-Limiting hole;

[0049] 33-Through hole;

[0050] 34-Avoidance section;

[0051] 35 - Mounting slot;

[0052] 4- Desiccant device;

[0053] 5-Wire removal connecting tube;

[0054] 6-Outer tube;

[0055] 7-Rotator assembly;

[0056] 8-Locking device;

[0057] 81-First locking element;

[0058] 82-Second locking element;

[0059] 9-Introduction device;

[0060] 91 - Protrusion.

[0061] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0062] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0063] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0064] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0065] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0066] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0067] like Figures 1 to 4 As shown, this application provides a valve delivery system, which includes a valve with a fixing part 1 and a valve delivery device. The valve delivery device includes a retraction assembly 3 and an embolic wire assembly 2. The retraction assembly 3 is provided with a plurality of fixing claws 31, which have different dimensions in the axial direction of the valve delivery device. The fixing claws 31 are provided with limit holes 32, through which the fixing part 1 can pass. The embolic wire assembly 2 is provided with a plurality of embolic wires 21, which have the same dimensions in the axial direction of the valve delivery device. When the fixing part 1 passes through the limit hole 32 and the embolic wires 21 pass through the fixing hole 11 of the fixing part 1, the valve is in a connected state. When the embolic wires 21 move along the axial direction of the valve delivery device, the embolic wires 21 can disengage from the fixing claws 31 of different lengths in sequence from long to short until all the fixing claws 31 are disengaged from the fixing part, at which point the valve is in a released state.

[0068] The valve delivery system provided in this application embodiment is used for valve implantation. The valve delivery system includes a valve and a valve delivery device, wherein the valve can be a self-expanding valve. The valve delivery device can deliver the valve to a preset position in the human body. When the valve reaches the preset position, the valve delivery device can release the valve, and the valve can achieve the effect of expansion and support. Specifically, the valve has a fixing part 1, and the fixing part 1 is provided with a fixing hole 11. The valve delivery device includes a retraction component 3 and an embolus component 2, wherein the retraction component 3 is provided with a plurality of fixing claws 31, the embolus component 2 is provided with a plurality of embolus 21, the fixing claws 31 are provided with limit holes 32, and the plurality of fixing claws 31 are arranged circumferentially along the retraction component 3 for fixing the valve from different directions. At least a portion of the fixing part 1 can pass through the limit hole 32. At this time, the embolus 21 pass through the fixing hole 11 respectively, thereby connecting the fixing part 1 and the fixing claws 31, realizing the connection between the valve and the valve delivery device. At this time, the valve is in a connected state. When the valve delivery device delivers the valve to the preset position, the thimble assembly 2 can be moved to disengage the thimble 21 from the fixing hole 11. The fixing claws 31 have different dimensions along the length of the valve delivery device, while the thimble 21 has the same length. Therefore, during the movement of the thimble 21, the fixing parts 1 connected to the fixing claws 31 of different lengths are released one after another. The thimble 21 disengages from the longer fixing claw 31 first, and the fixing parts 1 connected to the longer fixing claw 31 are also released first. As the thimble assembly 2 moves, different fixing parts 1 are released in sequence, realizing the step-by-step release of the valve. Compared to the direct release method used in existing technologies, where the valve and valve delivery device detach directly from each other, the valve, due to its elasticity, expands directly upon release. This rapid deformation can cause the valve to shift relative to its intended position, potentially even damaging the body. In contrast, the valve delivery device provided in this application allows for step-by-step release of the valve, thereby reducing the magnitude of deformation during release. This facilitates control of valve implantation and minimizes the possibility of valve displacement and damage to the body.

[0069] like Figure 3 As shown, in one possible implementation, the retraction component 3 is provided with four fixing claws 31. The fixing claws 31 are arranged circumferentially along the retraction component 3. The fixing claws 31 include a first fixing claw 311, a second fixing claw 312, a third fixing claw 313, and a fourth fixing claw 314. The length of the first fixing claw 311 is greater than the length of the second fixing claw 312, the length of the second fixing claw 312 is greater than the length of the third fixing claw 313, and the length of the fourth fixing claw 314 is equal to the length of the second fixing claw 312.

[0070] Multiple fixing claws 31 are arranged circumferentially along the retraction assembly 3. The fixing claws 31 include a first fixing claw 311, a second fixing claw 312, a third fixing claw 313, and a fourth fixing claw 314. The fixing claws 31 can simultaneously connect to the valve fixing part 1 from different directions, thereby maintaining stability when the valve is in the connected state. Specifically, the fixing claws 31 have different lengths. When the thimble assembly 2 moves and the thimble 21 disengages from the fixing hole 11, the valve separates from the first fixing claw 311, partially releasing the valve. The second fixing claw 312 and the fourth fixing claw 314 are of the same length, and the valve simultaneously disengages from both, releasing the valve from both sides at the same time, reducing the possibility of the valve shifting to one side during release. Finally, the valve disengages from the shortest fixing claw 313, and the valve is completely released. This embodiment of the application achieves step-by-step disengagement of the valve from the fixing claws 31 by setting fixing claws 31 of different lengths, reducing the deformation amplitude of the valve during each release step, making the valve release more stable, and reducing the possibility of the valve bouncing during release.

[0071] like Figure 3 As shown, in one possible implementation, the first fixing claw 311, the second fixing claw 312, the third fixing claw 313 and the fourth fixing claw 314 are arranged sequentially along the circumference of the retraction assembly 3.

[0072] When the valve is released, the first fixing claw 311 disengages from the valve, allowing a portion of the valve to be released. At this time, the second fixing claw 312, the third fixing claw 313, and the fourth fixing claw 314 remain connected to the valve. The third fixing claw 313 is arranged adjacent to the second fixing claw 312 and the fourth fixing claw 314, respectively, and is positioned between the second fixing claw 312 and the fourth fixing claw 314. The second fixing claw 312 and the fourth fixing claw 314 are of the same length and fix the valve from both sides, respectively, so that the valve can remain stable after the first fixing claw 311 is released. When the second fixing claw 312 and the fourth fixing claw 314 are released, they respectively release the limiting force on the valve from both sides, making the force on the valve more balanced and the release more stable.

[0073] like Figure 5 As shown, in one possible implementation, the valve delivery device includes a defilament device 4 and a defilament connecting tube 5. One end of the defilament connecting tube 5 is connected to the plugging assembly 2, and the other end is connected to the defilament device 4. The defilament device 4 is movable along the axial direction of the valve delivery device.

[0074] The unwinding device 4 is equipped with a handle and is connected to the embolization assembly 2 via the unwinding connecting tube 5. When the valve delivery device delivers the valve into the human body, the unwinding device 4 facilitates the movement of the embolization 21 device, thereby enabling the movement of the embolization 21 to control the release of the valve.

[0075] like Figure 1As shown, in one possible implementation, the valve delivery device includes a locking device 8, which is capable of locking the defilament device 4 and restricting the movement of the defilament device 4 in the axial direction of the valve delivery device.

[0076] The locking device 8 is located at the end of the unwinding device 4 away from the wire-binding assembly 2. The locking device 8 may include a locking groove and a locking member. Part of the locking member can extend into the locking groove, and the other part of the locking member protrudes relative to the locking groove, thereby restricting the unwinding device 4 from moving away from the wire-binding assembly 2. After the locking member disengages from the locking groove, it releases the locking on the unwinding device 4. The locking device 8 can reduce the possibility of misoperation and reduce the risk of premature valve release.

[0077] The defilothing device 4 can also be configured as a rotating wheel that can move along the axial direction of the valve delivery device. By rotating the rotating wheel, the defilothing device 4 can move along the axial direction of the valve delivery device, thereby reducing misoperation and locking.

[0078] like Figure 1 As shown, in one possible implementation, the locking device 8 includes a first locking member 81 and a second locking member 82. The first locking member 81 and the second locking member are arranged along the axial direction of the valve delivery device, and the distance between the first locking member 81 and the defilament device 4 is less than the distance between the second locking member 82 and the defilament device 4.

[0079] The locking device 8 is provided with a first locking element 81 and a second locking element 82. The distance between the first locking element 81 and the unwinding device 4 is less than the distance between the second locking element 82 and the unwinding device 4. This can be achieved by setting the sizes of the first locking element 81 and the second locking element 82 separately or by setting them in different installation positions on the locking device 8. The first locking element 81 and the second locking element 82 restrict the movement of the unwinding device 4 by abutting against it, thus achieving the locking effect. When the first locking element 81 is released, the unwinding device 4 can move to the position abutting against the second locking element 82, causing the valve to be partially released. When the second locking element 82 is released, the unwinding device 4 can continue to move, causing the valve to be fully released. By setting the first locking element 81 and the second locking element 82, the valve can be released in a distributed manner, reducing the possibility of the valve bouncing during release and also reducing the possibility of premature valve release due to misoperation. For example, when the unwinding device 4 comes into contact with the first locking member 81, the valve cannot be released and the valve is in a connected state. When the first locking member 81 is released, the unwinding device 4 can move, causing the valve to separate from the first fixing claw 311, thus releasing part of the valve. When the second locking member 82 is released, the unwinding device 4 can continue to move, and the valve simultaneously disengages from the second fixing claw 312 and the fourth fixing claw 314, and finally disengages from the third fixing claw 313, thus completely releasing the valve.

[0080] like Figure 3As shown, in one possible implementation, the retraction component 3 is provided with a through hole 33, through which the stud wire 21 can pass and the fixing hole 11.

[0081] The embolic wire assembly 2 is axially movable along the valve delivery device. The embolic wire assembly 2 is positioned on the side of the retraction assembly 3 away from the valve. A through-hole 33 extends through the retraction assembly 3 axially along the valve delivery device. The embolic wire 21 passes through the through-hole 33 and extends into the valve's fixing hole 11, thus preventing the valve from disengaging and keeping the valve in a connected state. When the embolic wire assembly 2 moves away from the retraction assembly 3, the embolic wire 21 can move within the through-hole 33, thereby disengaging from the fixing hole 11. The valve is no longer restricted by the embolic wire 21 and can unfold under its own elastic force. The through-hole 33 corresponds to the fixing claw 31, and the through-hole 33 guides the embolic wire 21, ensuring accurate engagement between the embolic wire 21 and the valve's fixing hole 11, reducing the possibility of the embolic wire 21 shifting.

[0082] like Figure 3 As shown, in one possible implementation, the retraction component 3 is provided with a mounting groove 35, and the fixing claw 31 is provided in the mounting groove 35, with the mounting groove 35 corresponding to the through hole 33.

[0083] The mounting groove 35 and the fixing claw 31 are correspondingly provided. When the valve is in the connected state, at least a part of the fixing claw 31 can be embedded in the mounting groove 35, so that the fixing claw 31 does not protrude relative to the surface of the retraction component 3, which facilitates the storage of the retraction component 3, thereby facilitating the valve delivery device to deliver the valve into the human body. The limiting hole 32 can be located in the avoidance part 34, which facilitates the fixing part 1 to extend into the limiting hole 32 and cooperate with the ferrule 21.

[0084] like Figure 3 As shown, in one possible implementation, the retraction component 3 is provided with a clearance part 34, which is located at the end of the retraction component 3 away from the bolt assembly 2. The clearance part 34 is used to leave space for the fixing part 1 to extend into the limiting hole 32, and the clearance part 34 is connected to the through hole 33.

[0085] The clearance part 34 is provided on the side of the fixing claw 31 in the retraction assembly 3 near the axial direction of the retraction assembly 3. The clearance part 34 allows the fixing claw 31 to extend out of the mounting groove 35. When the fixing part 1 extends into the limiting hole 32, the fixing part 1 can be bent in the direction close to the axis of the retraction assembly 3. At least a part of the fixing part 1 can extend into the clearance part 34, so that the fixing hole 11 can cooperate with the bolt 21.

[0086] like Figure 1 As shown, in one possible implementation, the valve delivery system includes an outer tube 6 and a rotating wheel assembly 7, which is movable along the axial direction of the valve delivery device to drive the outer tube 6 to move and release the valve.

[0087] The outer tube 6 is used to fix and store the valve. The rotating wheel assembly 7 is located at the end of the delivery system away from the valve. The rotating wheel assembly 7 includes threads. When the rotating wheel assembly 7 is rotated, it can move along the axial direction of the valve delivery device, thereby driving the outer tube 6 to move, releasing the restriction on the valve, and thus releasing the valve. Using the rotating wheel assembly 7 for control can improve the accuracy of the release of the outer tube 6.

[0088] like Figure 6 As shown, in one possible implementation, the valve delivery device includes an introduction device 9, which is located at the end of the valve delivery device away from the locking device 8, for introducing the valve delivery device into the human body during valve implantation.

[0089] The introducing device 9 has a conical tip for easy insertion into the human body. The introducing device 9 includes a protrusion 91 that surrounds the tip and is arc-shaped, matching the shape of the valve end in the connected state. This facilitates the valve delivery device to receive the valve. The opening of the outer tube 6 can also be configured as a corresponding arc-shaped opening, cooperating with the protrusion 91 of the introducing device 9 to facilitate the introducing device 9 to insert the valve delivery device into the human body.

[0090] This application provides a valve delivery system, which includes a valve with a fixing part 1 and a valve delivery device. The valve delivery device includes a retraction assembly 3 and an embolic wire assembly 2. The retraction assembly 3 is provided with multiple fixing claws 31, which have different dimensions along the axial direction of the valve delivery device. The fixing claws 31 are provided with limit holes 32, through which the fixing part 1 can pass. The embolic wire assembly 2 is provided with multiple embolic wires 21, which have the same dimensions along the axial direction of the valve delivery device. When the fixing part 1 passes through the limit hole 32 and the embolic wire 21 passes through the fixing hole 11 of the fixing part 1, the valve is in a connected state. When the embolic wire 21 moves along the axial direction of the valve delivery device, the embolic wire 21 can disengage from the fixing claws 31 of different lengths from long to short until all the fixing claws 31 disengage from the valve, at which point the valve is in a released state. This system is used to achieve step-by-step release of the valve, thereby reducing the possibility of bouncing, displacement, and injury to the human body during valve release, and improving the stability of valve release.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit 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 protection scope of this application.

Claims

1. A valve delivery system, characterized in that, The valve delivery system includes a valve and a valve delivery device with multiple fixing parts (1), the valve delivery device including: The retraction assembly (3) is provided with a plurality of fixing claws (31). The plurality of fixing claws (31) have different dimensions in the axial direction of the valve delivery device. The fixing claws (31) are provided with limit holes (32). The fixing part (1) can pass through the limit holes (32). The embolus assembly (2) is provided with a plurality of embolus (21), wherein the embolus (21) are of the same size in the axial direction of the valve delivery device; When the fixing part (1) passes through the limiting hole (32) and the thimble (21) passes through the fixing hole (11) of the fixing part (1), the valve is in a connected state. When the embolus (21) moves along the axial direction of the valve delivery device, the embolus (21) can disengage from the fixing claws (31) of different lengths from long to short, until all the fixing claws (31) disengage from the fixing part (1), at which point the valve is in a released state. The valve delivery device includes a defilament device (4) and a defilament connecting tube (5). One end of the defilament connecting tube (5) is connected to the embolus assembly (2), and the other end is connected to the defilament device (4). The defilament device (4) can move along the axial direction of the valve delivery device. The retraction component (3) is provided with a through hole (33), and the stud wire (21) can pass through the through hole (33) and the fixing hole (11).

2. The valve delivery system according to claim 1, characterized in that, The retraction component (3) is provided with four fixing claws (31). The fixing claws (31) are arranged along the circumference of the retraction component (3). The fixing claws (31) include a first fixing claw (311), a second fixing claw (312), a third fixing claw (313), and a fourth fixing claw (314). The length of the first fixing claw (311) is greater than the length of the second fixing claw (312). The length of the second fixing claw (312) is greater than the length of the third fixing claw (313). The length of the fourth fixing claw (314) is equal to the length of the second fixing claw (312).

3. The valve delivery system according to claim 2, characterized in that, The first fixing claw (311), the second fixing claw (312), the third fixing claw (313) and the fourth fixing claw (314) are arranged sequentially along the circumference of the retraction assembly (3).

4. The valve delivery system according to claim 1, characterized in that, The valve delivery device includes a locking device (8) that can lock the defilament device (4) to restrict the movement of the defilament device (4) in the axial direction of the valve delivery device.

5. The valve delivery system according to claim 4, characterized in that, The locking device (8) includes a first locking member (81) and a second locking member (82). The first locking member (81) and the second locking member (82) are arranged along the axial direction of the valve delivery device, and the distance between the first locking member (81) and the defilament device (4) is less than the distance between the second locking member (82) and the defilament device (4).

6. The valve delivery system according to claim 1, characterized in that, The retraction component (3) is provided with a clearance part (34), which is located at one end of the retraction component (3) away from the bolt assembly (2). The clearance part (34) is used to leave space for the fixing part (1) to extend into the limiting hole (32). The clearance part (34) is connected to the through hole (33).

7. The valve delivery system according to claim 6, characterized in that, The retraction component (3) is provided with a mounting groove (35), the fixing claw (31) is provided in the mounting groove (35), the mounting groove (35) is connected to the clearance part (34), and the mounting groove (35) is correspondingly provided with the through hole (33).

8. The valve delivery system according to any one of claims 1 to 7, characterized in that, The valve delivery system includes an outer tube (6) and a rotating wheel assembly (7). The rotating wheel assembly (7) is movable along the axial direction of the valve delivery device to drive the outer tube (6) to move and release the valve.

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