A valve delivery system

Abstract

The present application relates to a valve delivery system. The valve delivery system includes a valve provided with a fixing portion and a valve delivery device. The valve delivery device includes a retraction assembly and a wire assembly. The retraction assembly is provided with a plurality of fixing claws. The fixing claws have different dimensions in the axial direction of the valve delivery device. The fixing claws are provided with limiting holes. The fixing portion can pass through the limiting holes. The wire assembly is provided with a plurality of wires. The wires have the same dimension in the axial direction of the valve delivery device. Wherein, when the fixing portion passes through the limiting holes and the wires pass through the fixing holes of the fixing portion, the valve is in a connected state. When the wires move along the axial direction of the valve delivery device, the wires can sequentially disengage from the fixing claws of different lengths from long to short. Until all the fixing claws are disengaged from the valve, the valve is in a released state, which is used to realize the step-by-step release of the valve, thereby reducing the possibility of the valve bouncing, generating displacement and damaging the human body during valve release, and improving the stability of valve release.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular to a valve delivery system. Background Art

[0002] With the development of medical technology, heart valve diseases can be treated by implanting heart valves. A self-expanding valve is an artificial valve that can be curled and reduced in vitro and can automatically expand and deploy after being delivered to a preset position in the human body through an implanting device to achieve the effects of support and expansion. However, after the valve is released, it disengages and bounces off the implanting device, easily causing bouncing, resulting in valve displacement and even damaging the human body. Summary of the Invention

[0003] This application provides a valve delivery system for solving the problem of displacement caused by bouncing when releasing the valve.

[0004] An embodiment of this application provides a valve delivery system, which includes a valve provided with a plurality of fixing parts and a valve delivery device. The valve delivery device includes:

[0005] A retraction assembly, the retraction assembly is provided with a plurality of fixing claws, the sizes of the plurality of fixing claws in the axial direction of the valve delivery device are different, the fixing claws are provided with limiting holes, and the fixing parts can pass through the limiting holes;

[0006] A wire component, the wire component is provided with a plurality of wires, and the sizes of the wires in the axial direction of the valve delivery device are the same;

[0007] Wherein, when the fixing part passes through the limiting hole and the wire passes through the fixing hole of the fixing part, the valve is in a connected state;

[0008] When the wire moves along the axial direction of the valve delivery device, the wire can disengage from the fixing claws of different lengths from long to short respectively. When all the fixing claws are disengaged from the fixing part, the valve is in a released state.

[0009] The valve delivery system provided by the embodiment of the present application is used for implanting a valve. The valve delivery system includes a valve and a valve delivery device. 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 effects of expansion and support. Specifically, the valve has a fixing part, and the fixing part is provided with fixing holes. The valve delivery device includes a retraction assembly and a wire assembly. The retraction assembly is provided with a plurality of fixing claws, and the wire assembly is provided with a plurality of wires. The fixing claws are provided with limiting holes. The plurality of fixing claws are arranged along the circumference of the retraction assembly and are used to fix the valve from different directions. At least part of the fixing part can pass through the limiting holes. At this time, the wires respectively pass through the fixing holes, so as to connect 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 wires can be separated from the fixing holes by moving the wire assembly. Among them, the sizes of the fixing claws in the length direction of the valve delivery device are different, while the lengths of the wires are the same. Therefore, during the process of moving the wires, the fixing parts connected to the fixing claws with different lengths are also released successively. The wires first separate from the fixing claws with longer lengths, and at the same time, the fixing parts connected to the fixing claws with longer lengths are also released first. As the wire assembly moves, different fixing parts are released in sequence, realizing the step-by-step release of the valve. Compared with the prior art in which the valve is often released directly, the valve and the valve delivery device will directly separate from each other. Since the valve itself has a certain elasticity, the valve will directly unfold when released. This large-scale and rapid deformation may cause the valve to displace relative to the preset position and even damage the human body. However, the valve delivery device provided by the embodiment of the present application can realize the step-by-step release of the valve, thereby reducing the amplitude of deformation when the valve is released, facilitating the control of valve implantation, and reducing the possibility of valve displacement and damage to the human body.

[0010] In a possible implementation manner, the retraction assembly is provided with four of the fixing claws. The fixing claws are arranged along the circumference of the retraction assembly. 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. The length of the fourth fixing claw is equal to the length of the second fixing claw.

[0011] A plurality of fixing claws are arranged along the circumference of the withdrawal component, and the fixing claws include a first fixing claw, a second fixing claw, a third fixing claw and a fourth fixing claw. The fixing claws can be connected to the fixing part of the valve from different directions at the same time, so that the valve remains stable when it is in a connected state. Specifically, the lengths of the fixing claws are different. When the bolt wire assembly moves to disengage the bolt wire from the fixing hole, the valve separates from the first fixing claw, so that the valve is partially released. The second fixing claw and the fourth fixing claw are of the same length, and the valve is disengaged from both at the same time, so that both sides of the valve are released at the same time, reducing the possibility of the valve deviating to one side when it is released. Finally, the valve is disengaged from the third fixing claw with the shortest length, and the valve is completely released. The embodiment of the present application realizes the step-by-step disengagement of the valve and the fixing claws by setting fixing claws of different lengths, reducing the deformation amplitude of the valve at each step of release, making the valve release more stable, and reducing the possibility of the valve bouncing when it is released.

[0012] In a possible implementation manner, the first fixing claw, the second fixing claw, the third fixing claw, and the fourth fixing claw are sequentially arranged along the circumference of the retraction assembly.

[0013] When the valve is released, the first fixing claw is first separated from the valve, so that a part of the valve is released. At this time, the second fixing claw, the third fixing claw and the fourth fixing claw are still connected to the valve, and the third fixing claw is respectively arranged adjacent to the second fixing claw and the fourth fixing claw, and the third fixing claw is arranged between the second fixing claw and the fourth fixing claw. The second fixing claw and the fourth fixing claw have the same length and respectively fix the valve from both sides of the valve, so that the valve can remain stable after the first fixing claw is released, and the second fixing claw and the fourth fixing claw are respectively released from the two sides of the valve when they are released, so that the force on the valve is more balanced when the valve is released, and the release is more stable.

[0014] In a possible embodiment, the valve delivery device includes a wire stripping device and a wire stripping connecting tube, one end of the wire stripping connecting tube is connected to the wire embossing assembly, and the other end is connected to the wire stripping device, and the wire stripping device can move along the axial direction of the valve delivery device.

[0015] The wire-removing device is provided with a handle, which is connected to the embolic wire assembly through a wire-removing connecting tube. When the valve delivery device delivers the valve into the human body, the wire-removing device is used to control the movement of the embolic wire device, thereby realizing the movement of the embolic wire to control the release of the valve.

[0016] In a possible implementation, the valve delivery device includes a locking device, which can lock the wire-release device to limit the movement of the wire-release device in the axial direction of the valve delivery device.

[0017] The locking device is arranged at one end of the wire stripping device away from the wire threading assembly. The locking device may include a locking groove and a locking member. A 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 wire stripping device from moving away from the wire threading assembly. After the locking member disengages from the locking groove, the locking of the wire stripping device is released. The locking device can reduce the possibility of misoperation and lower the risk of the valve being prematurely released.

[0018] In a possible implementation manner, the locking device includes a first locking member and a second locking member. The first locking member and the second locking member are arranged along the axial direction of the valve delivery device, and the distance between the first locking member and the wire stripping device is less than the distance between the second locking member and the wire stripping device.

[0019] The locking device is provided with a first locking member and a second locking member, and the distance between the first locking member and the wire stripping device is less than the distance between the second locking member and the wire stripping device. Specifically, it can be achieved by respectively setting the sizes of the first locking member and the second locking member or by respectively setting their different installation positions on the locking device. The first locking member and the second locking member limit the movement of the wire stripping device by abutting against the wire stripping device to achieve the locking effect. When the first locking member is released, the wire stripping device can move to a position where it abuts against the second locking member, causing partial release of the valve. When the second locking member is released, the wire stripping device can continue to move, causing complete release of the valve. By setting the first locking member and the second locking member, distributed release of the valve can be achieved, reducing the possibility of the valve bouncing during release and at the same time reducing the situation of premature release of the valve due to misoperation when releasing the valve. For example, when the wire stripping device abuts against the first locking member, the valve cannot be released and the valve is in a connected state. When the first locking member is released, the wire stripping device can move, causing the valve to separate from the first fixing claw, resulting in partial release of the valve. When the second locking member is released, the wire stripping device can continue to move, and the valve disengages from the second fixing claw and the fourth fixing claw simultaneously and finally disengages from the third fixing claw, causing complete release of the valve.

[0020] In a possible implementation manner, the retraction assembly is provided with a through hole, and the wire can pass through the through hole and the fixing hole.

[0021] The wire component can move axially along the valve delivery device. The wire component is arranged on the side of the retraction component away from the valve. The through hole penetrates the retraction component axially along the valve delivery device. The wire can pass through the through hole and extend into the fixing hole of the valve, thereby restricting the decoupling of the valve and keeping the valve in a connected state. When the wire component moves in a direction away from the retraction component, the wire can move within the through hole, thereby disengaging from the fixing hole. The valve is no longer limited by the wire and can expand under its own elastic force. The through hole is correspondingly arranged with the fixing claw, and the through hole can guide the wire, enabling the wire to accurately cooperate with the fixing hole of the valve and reducing the possibility of the wire shifting.

[0022] In a possible implementation manner, the retraction component is provided with a mounting groove, the fixing claw is arranged in the mounting groove, the mounting groove communicates with the avoidance portion, and the mounting groove is correspondingly arranged with the through hole.

[0023] The mounting groove is correspondingly arranged with the fixing claw, and the mounting groove communicates with the avoidance portion. When the valve is in a connected state, at least part of the fixing claw can be embedded in the mounting groove, so that the fixing claw does not protrude relative to the surface of the retraction component, facilitating the storage of the retraction component, thereby facilitating the valve delivery device to deliver the valve into the human body, and the limiting hole can be located in the avoidance portion, facilitating the fixing portion to extend into the limiting hole and cooperate with the wire.

[0024] In a possible implementation manner, the retraction component is provided with an avoidance portion. The avoidance portion is arranged at one end of the retraction component away from the wire component. The avoidance portion is used to leave space for the fixing portion to extend into the limiting hole, and the avoidance portion communicates with the through hole.

[0025] The avoidance portion is arranged on one side of the retraction component along the axial direction of the fixing claw close to the retraction component. The avoidance portion enables the fixing claw to protrude from the inner wall of the through hole. When the fixing portion extends into the limiting hole, the fixing portion can bend along the direction close to the axis of the retraction component, and at least part of the fixing portion can extend into the avoidance portion, so that the fixing hole can cooperate with the wire.

[0026] In a possible implementation manner, the valve delivery system includes an outer tube and a runner assembly. The runner assembly can move along the axial direction of the valve delivery device and is used to drive the outer tube to move and release the valve.

[0027] The outer tube is used to fixedly store the valve. The runner assembly is arranged at one end of the delivery system away from the valve. The runner assembly includes a thread. When the runner assembly is rotated, the runner assembly 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 releasing the valve. Using the runner assembly for control can improve the accuracy of the release of the outer tube.

[0028] An embodiment of the present application provides a valve delivery system, which includes a valve provided with a fixing part and a valve delivery device. The valve delivery device includes a retraction assembly and a wire assembly. The retraction assembly is provided with a plurality of fixing claws, and the sizes of the fixing claws in the axial direction of the valve delivery device are different. The fixing claws are provided with limiting holes, and the fixing part can pass through the limiting holes. The wire assembly is provided with a plurality of wires, and the sizes of the wires in the axial direction of the valve delivery device are the same. Wherein, when the fixing part passes through the limiting hole and the wire passes through the fixing hole of the fixing part, the valve is in a connected state. When the wire moves along the axial direction of the valve delivery device, the wire can be separated from the fixing claws of different lengths from long to short respectively. Until all the fixing claws are separated from the valve, the valve is in a released state, which is used to realize the step-by-step release of the valve, thereby reducing the possibility of the valve bouncing, generating displacement and damaging the human body when the valve is released, and improving the stability of the valve release.

[0029] It should be understood that the above general description and subsequent detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Structural schematic diagram of the valve delivery device provided by the present application;

[0031] Figure 2 Structural schematic diagram of the wire assembly provided by the present application;

[0032] Figure 3 Structural schematic diagram of the retraction assembly provided by the present application;

[0033] Figure 4 Structural schematic diagram of the connection between the fixing part and the fixing claw provided by the present application;

[0034] Figure 5 Structural schematic diagram of the wire removal device provided by the present application;

[0035] Figure 6 Structural schematic diagram of the introduction device provided by the present application.

[0036] REFERENCE SIGNS:

[0037] 1 - Fixing part;

[0038] 11 - Fixing hole;

[0039] 2 - Wire assembly;

[0040] 21 - Wire;

[0041] 3 - Retraction assembly;

[0042] 31 - Fixing claw;

[0043] 311 - First fixed claw;

[0044] 312 - Second fixed claw;

[0045] 313 - Third fixed claw;

[0046] 314 - Fourth fixed claw;

[0047] 32 - Limit hole;

[0048] 33 - Through hole;

[0049] 34 - Avoidance part;

[0050] 35 - Installation groove;

[0051] 4 - Wire stripping device;

[0052] 5 - Wire stripping connecting pipe;

[0053] 6 - Outer pipe;

[0054] 7 - Runner assembly;

[0055] 8 - Locking device;

[0056] 81 - First locking part;

[0057] 82 - Second locking part;

[0058] 9 - Import device;

[0059] 91 - Protrusion part.

[0060] The accompanying drawings here are incorporated into and constitute a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Detailed implementation manners

[0061] For a better understanding of the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0062] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0063] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms of "a", "the" and "said" 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.

[0064] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0065] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the angle shown in the drawings and should not be construed as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component.

[0066] As Figures 1 to 4 shown, the embodiments of the present application provide a valve delivery system. The valve delivery system includes a valve provided with a fixing portion 1 and a valve delivery device. The valve delivery device includes a retraction assembly 3 and a wire assembly 2. The retraction assembly 3 is provided with a plurality of fixing claws 31. The fixing claws 31 have different dimensions in the axial direction of the valve delivery device. The fixing claws 31 are provided with limiting holes 32. The fixing portion 1 can pass through the limiting holes 32. The wire assembly 2 is provided with a plurality of wires 21. The wires 21 have the same dimensions in the axial direction of the valve delivery device. Wherein, when the fixing portion 1 passes through the limiting holes 32 and the wires 21 pass through the fixing holes 11 of the fixing portion 1, the valve is in a connected state. When the wires 21 move along the axial direction of the valve delivery device, the wires 21 can sequentially disengage from the fixing claws 31 with different lengths from long to short. Until all the fixing claws 31 are disengaged from the fixing portion, the valve is in a released state.

[0067] The valve delivery system provided by the embodiments of the present application is used for implanting a valve. The valve delivery system includes a valve and a valve delivery device. 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 effects of expansion and support. Specifically, the valve has a fixing portion 1, and the fixing portion 1 is provided with a fixing hole 11. The valve delivery device includes a retraction assembly 3 and a wire assembly 2. The retraction assembly 3 is provided with a plurality of fixing claws 31, and the wire assembly 2 is provided with a plurality of wires 21. The fixing claws 31 are provided with limiting holes 32. The plurality of fixing claws 31 are arranged along the circumference of the retraction assembly 3 for fixing the valve from different directions. At least a part of the fixing portion 1 can pass through the limiting holes 32. At this time, the wires 21 respectively pass through the fixing holes 11, thereby connecting the fixing portion 1 and the fixing claws 31 to realize 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 wires 21 can be separated from the fixing holes 11 by moving the wire assembly 2. Among them, the sizes of the fixing claws 31 in the length direction of the valve delivery device are different, while the lengths of the wires 21 are the same. Therefore, during the process of moving the wires 21, the fixing portions 1 connected to the fixing claws 31 with different lengths are successively released. The wires 21 are first separated from the fixing claws 31 with longer lengths, and at the same time, the fixing portions 1 connected to the fixing claws 31 with longer lengths are also first released. As the wire assembly 2 moves, different fixing portions 1 are successively released to realize the step-by-step release of the valve. Compared with the direct release method of the valve in the prior art, the valve and the valve delivery device will directly separate from each other. Since the valve itself has a certain elasticity, the valve will directly unfold when released. This large-scale rapid deformation may cause the valve to displace relative to the preset position and even damage the human body. However, the valve delivery device provided by the embodiments of the present application can realize the step-by-step release of the valve, thereby reducing the amplitude of deformation when the valve is released, facilitating the control of valve implantation, and reducing the possibility of valve displacement and human body damage.

[0068] As Figure 3 shown, in a possible implementation manner, the retraction assembly 3 is provided with four fixing claws 31. The fixing claws 31 are arranged along the circumference of 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 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.

[0069] A plurality of 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 be connected to the fixing part 1 of the valve from different directions simultaneously, so that the valve remains stable when in the connected state. Specifically, the lengths of the fixing claws 31 are different. When the wire component 2 moves and the wire 21 disengages from the fixing hole 11, the valve separates from the first fixing claw 311, causing partial release of the valve. The second fixing claw 312 and the fourth fixing claw 314 have the same length, and the valve disengages from both of them simultaneously, releasing the fixation on both sides of the valve, reducing the possibility of the valve shifting to one side during release. Finally, the valve disengages from the third fixing claw 313 with the shortest length, and the valve is completely released. By setting the fixing claws 31 with different lengths in the embodiment of the present application, the step-by-step disengagement of the valve from the fixing claws 31 is achieved, reducing the amplitude of deformation of the valve during each step of release, making the valve release more stable, and reducing the possibility of the valve bouncing during release.

[0070] As Figure 3 shown, in a possible implementation manner, the first fixing claw 311, the second fixing claw 312, the third fixing claw 313, and the fourth fixing claw 314 are arranged in sequence along the circumferential direction of the retraction assembly 3.

[0071] When releasing the valve, the first fixing claw 311 disengages from the valve first, releasing a part of the valve. At this time, the second fixing claw 312, the third fixing claw 313, and the fourth fixing claw 314 are still connected to the valve, and the third fixing claw 313 is adjacent to the second fixing claw 312 and the fourth fixing claw 314 respectively, and the third fixing claw 313 is arranged between the second fixing claw 312 and the fourth fixing claw 314. The second fixing claw 312 and the fourth fixing claw 314 have the same length and fix the valve from both sides of the valve 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, the limit on the valve is released from both sides of the valve respectively, making the force on the valve more balanced during release and the release more stable.

[0072] As Figure 5 shown, in a possible implementation manner, the valve delivery device includes a wire removal device 4 and a wire removal connecting pipe 5. One end of the wire removal connecting pipe 5 is connected to the wire component 2, and the other end is connected to the wire removal device 4. The wire removal device 4 can move along the axial direction of the valve delivery device.

[0073] The wire removal device 4 is provided with a handle and is connected to the wire component 2 through the wire removal connecting pipe 5. When the valve delivery device delivers the valve into the human body, it is convenient to control the movement of the wire 21 device through the wire removal device 4, so as to realize the movement of the wire 21 to control the release of the valve.

[0074] As Figure 1As shown, in a possible implementation, the valve delivery device includes a locking device 8, and the locking device 8 can lock the wire detachment device 4 to restrict the movement of the wire detachment device 4 in the axial direction of the valve delivery device.

[0075] The locking device 8 is arranged at one end of the wire detachment device 4 away from the wire component 2. The locking device 8 may include a locking groove and a locking member. A 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 wire detachment device 4 from moving away from the wire component 2. After the locking member disengages from the locking groove, the locking of the wire detachment device 4 is released. The locking device 8 can reduce the possibility of misoperation and lower the risk of the valve being released prematurely.

[0076] The wire detachment device 4 can also be set as a runner capable of moving axially along the valve delivery device. By rotating the runner, the axial movement of the wire detachment device 4 along the valve delivery device is realized, achieving the effects of reducing misoperation and locking.

[0077] As Figure 1 shown, in a 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 wire detachment device 4 is less than the distance between the second locking member 82 and the wire detachment device 4.

[0078] The locking device 8 is provided with a first locking member 81 and a second locking member 82, and the distance between the first locking member 81 and the wire detachment device 4 is less than the distance between the second locking member 82 and the wire detachment device 4. Specifically, it can be achieved by respectively setting the sizes of the first locking member 81 and the second locking member 82 or respectively setting their different installation positions on the locking device 8. The first locking member 81 and the second locking member restrict the movement of the wire detachment device 4 by abutting against the wire detachment device 4 to achieve the locking effect. When the first locking member 81 is released, the wire detachment device 4 can move to a position where it abuts against the second locking member 82, enabling partial release of the valve. When the second locking member 82 is released, the wire detachment device 4 can continue to move, enabling complete release of the valve. By setting the first locking member 81 and the second locking member 82, the distributed release of the valve can be realized, reducing the possibility of the valve bouncing during release and simultaneously reducing the situation of misoperation and premature release of the valve when releasing the valve. For example, when the wire detachment device 4 abuts against 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 wire detachment device 4 can move, separating the valve from the first fixing claw 311, enabling partial release of the valve. When the second locking member 82 is released, the wire detachment device 4 can continue to move, and the valve disengages from the second fixing claw 312 and the fourth fixing claw 314 simultaneously, and finally disengages from the third fixing claw 313, enabling complete release of the valve.

[0079] As Figure 3As shown, in a possible implementation, the retraction assembly 3 is provided with a through hole 33, and the wire 21 can pass through the through hole 33 and the fixing hole 11.

[0080] The wire assembly 2 can move along the axial direction of the valve delivery device. The wire assembly 2 is arranged on the side of the retraction assembly 3 away from the valve. The through hole 33 penetrates the retraction assembly 3 along the axial direction of the valve delivery device. The wire 21 can pass through the through hole 33 and extend into the fixing hole 11 of the valve, thereby restricting the valve from unhooking and keeping the valve in a connected state. When the wire assembly 2 moves in a direction away from the retraction assembly 3, the wire 21 can move within the through hole 33, thereby disengaging from the fixing hole 11. The valve is no longer limited by the wire 21 and can expand under its own elastic force. The through hole 33 is correspondingly arranged with the fixing claw 31. The through hole 33 can guide the wire 21, enabling the wire 21 to accurately cooperate with the fixing hole 11 of the valve and reducing the possibility of the wire 21 shifting.

[0081] As Figure 3 shown, in a possible implementation, the retraction assembly 3 is provided with a mounting groove 35. The fixing claw 31 is arranged in the mounting groove 35, and the mounting groove 35 is correspondingly arranged with the through hole 33.

[0082] The mounting groove 35 is correspondingly arranged with the fixing claw 31. When the valve is in a connected state, at least 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 assembly 3, facilitating the storage of the retraction assembly 3, thereby facilitating the valve delivery device to deliver the valve into the human body, and the limiting hole 32 can be located in the avoidance portion 34, facilitating the fixing portion 1 to extend into the limiting hole 32 and cooperate with the wire 21.

[0083] As Figure 3 shown, in a possible implementation, the retraction assembly 3 is provided with an avoidance portion 34. The avoidance portion 34 is arranged at one end of the retraction assembly 3 away from the wire assembly 2. The avoidance portion 34 is used to leave space for the fixing portion 1 to extend into the limiting hole 32, and the avoidance portion 34 is communicated with the through hole 33.

[0084] The avoidance portion 34 is arranged on the side of the fixing claw 31 in the retraction assembly 3 close to the axial direction of the retraction assembly 3. The avoidance portion 34 enables the fixing claw 31 to protrude from the mounting groove 35. When the fixing portion 1 extends into the limiting hole 32, the fixing portion 1 can bend in a direction close to the axis of the retraction assembly 3, and at least part of the fixing portion 1 can extend into the avoidance portion 34, so that the fixing hole 11 can cooperate with the wire 21.

[0085] As Figure 1 shown, in a possible implementation, the valve delivery system includes an outer tube 6 and a runner assembly 7. The runner assembly 7 can move along the axial direction of the valve delivery device and is used to drive the outer tube 6 to move and release the valve.

[0086] The outer tube 6 is used to fixedly accommodate the valve. The rotating wheel assembly 7 is arranged at one end of the delivery system far from the valve. The rotating wheel assembly 7 includes a thread. When the rotating wheel assembly 7 is rotated, the rotating wheel assembly 7 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 release accuracy of the outer tube 6.

[0087] As Figure 6 shown, in a possible implementation manner, the valve delivery device includes an introducing device 9. The introducing device 9 is arranged at one end of the valve delivery device far from the locking device 8 and is used to introduce the valve delivery device into the human body when implanting the valve.

[0088] The introducing device 9 has a conical tip for facilitating entry into the human body. The introducing device 9 includes a raised portion 91. The raised portion 91 is arranged around the tip, and the shape of the raised portion 91 is arc-shaped, which is consistent with the outer shape of the valve end in the connected state, facilitating the valve delivery device to accommodate the valve. The opening of the outer tube 6 can also be set as a corresponding arc-shaped opening, which cooperates with the raised portion 91 of the introducing device 9 to facilitate the introducing device 9 to introduce the valve delivery device into the human body.

[0089] The embodiment of the present application provides a valve delivery system. The valve delivery system includes a valve provided with a fixing portion 1 and a valve delivery device. The valve delivery device includes a retracting assembly 3 and a wire component 2. The retracting assembly 3 is provided with a plurality of fixing claws 31. The sizes of the fixing claws 31 in the axial direction of the valve delivery device are different. The fixing claws 31 are provided with limiting holes 32. The fixing portion 1 can pass through the limiting holes 32. The wire component 2 is provided with a plurality of wires 21. The sizes of the wires 21 in the axial direction of the valve delivery device are the same. Among them, when the fixing portion 1 passes through the limiting holes 32 and the wires 21 pass through the fixing holes 11 of the fixing portion 1, the valve is in a connected state. When the wires 21 move along the axial direction of the valve delivery device, the wires 21 can respectively disengage from the fixing claws 31 of different lengths from long to short until all the fixing claws 31 are disengaged from the valve, and the valve is in a released state, which is used to realize the step-by-step release of the valve, thereby reducing the possibility of the valve bouncing, generating displacement and damaging the human body when the valve is released, and improving the stability of the valve release.

[0090] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve delivery system, characterized in that, The valve delivery system includes a valve provided with a plurality of fixing parts (1) and a valve delivery device, and the valve delivery device includes: A retraction assembly (3), the retraction assembly (3) is provided with a plurality of fixing claws (31), the sizes of the plurality of fixing claws (31) in the axial direction of the valve delivery device are different, the fixing claws (31) are provided with limiting holes (32), and the fixing parts (1) can pass through the limiting holes (32); A wire component (2), the wire component (2) is provided with a plurality of wires (21), and the sizes of the wires (21) in the axial direction of the valve delivery device are the same; Wherein, when the fixing part (1) passes through the limiting hole (32) and the wire (21) passes through the fixing hole (11) of the fixing part (1), the valve is in a connected state; When the wire (21) moves along the axial direction of the valve delivery device, the wire (21) can respectively disengage from the fixing claws (31) of different lengths from long to short. When all the fixing claws (31) are disengaged from the fixing part (1), the valve is in a released state; the retraction assembly (3) is provided with four fixing claws (31), the 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 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).

2. The valve delivery system according to claim 1, wherein The first fixing claw (311), the second fixing claw (312), the third fixing claw (313) and the fourth fixing claw (314) are sequentially arranged circumferentially along the retraction assembly (3).

3. The valve delivery system according to claim 1, characterized in that, The valve delivery device includes a wire removing device (4) and a wire removing connecting pipe (5), one end of the wire removing connecting pipe (5) is connected to the wire component (2), and the other end is connected to the wire removing device (4), and the wire removing device (4) can move along the axial direction of the valve delivery device.

4. The valve delivery system according to claim 3, wherein, The valve delivery device includes a locking device (8), and the locking device (8) can lock the wire removing device (4) to limit the movement of the wire removing device (4) in the axial direction of the valve delivery device.

5. The valve delivery system according to claim 4, wherein 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 wire removing device (4) is less than the distance between the second locking member (82) and the wire removing device (4).

6. The valve delivery system according to claim 1, wherein The retraction assembly (3) is provided with a through hole (33), and the wire (21) can pass through the through hole (33) and the fixing hole (11).

7. The valve delivery system according to claim 6, wherein, The retraction component (3) is provided with an avoidance portion (34). The avoidance portion (34) is arranged at one end of the retraction component (3) away from the wire component (2). The avoidance portion (34) is used to leave a space for the fixing portion (1) to extend into the limiting hole (32), and the avoidance portion (34) communicates with the through hole (33).

8. The valve delivery system according to claim 7, wherein The retraction component (3) is provided with an installation groove (35). The fixing claw (31) is arranged in the installation groove (35). The installation groove (35) communicates with the avoidance portion (34), and the installation groove (35) is arranged corresponding to the through hole (33).

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

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