Locking device

Abstract

This application relates to the field of medical device technology, and provides a suture locking device, comprising: a suture locking handle; a sheath connected to the suture locking handle; and a cannula assembly connected to the distal end of the sheath, the cannula assembly having a receiving space for accommodating a pull-out element, and the cannula assembly having a first notch for installing and releasing the suture locking mechanism. The technical solution of this application enables the rapid separation of the suture locking mechanism from the suture locking device during annular retraction surgery of the mitral and tricuspid valves.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a locking device. Background Technology

[0002] Valvular annulus dilatation is the most common cause of mitral and tricuspid valve disease. Valvular annulus reduction surgery, which is performed to treat mitral or tricuspid valve dilatation, is an important and basic surgical procedure for mitral or tricuspid valve repair. Its principle is to reduce the regurgitation caused by valve annulus dilatation by reducing the valve orifice area of ​​the mitral or tricuspid valve so that the leaflets can fit together, thereby reducing regurgitation or even completely eliminating regurgitation.

[0003] During annular retraction surgery, it is typically necessary to deliver a manipulator suture into the annular tissue. After multiple annular rings are connected in series by the manipulator suture, they are locked together using a locking device. Finally, the locking mechanism and manipulator suture need to be separated from the locking device. However, existing methods are complex and cumbersome in separating the locking mechanism, making rapid separation of the locking mechanism impossible. Summary of the Invention

[0004] The purpose of this application is to provide a suture locking device to achieve the technical effect of quickly separating the suture locking mechanism from the suture locking device during the annular reduction surgery of the mitral and tricuspid valves.

[0005] This application provides a wire-locking device, including: a wire-locking handle; a sheath connected to the wire-locking handle; and a sleeve assembly connected to the distal end of the sheath, the sleeve assembly having a receiving space for placing a pull-out member, and the sleeve assembly having a first notch for installing and releasing the wire-locking mechanism.

[0006] In the above embodiments, the suture locking device includes a suture locking handle, a sheath, and a sleeve assembly. The suture locking handle is used to deliver the sheath into the annular tissue. The sleeve assembly is located on the side of the sheath away from the suture locking handle, and has a receiving space for placing a pull-out member, as well as a first notch for installing and releasing the suture locking mechanism. The suture locking mechanism is used to lock the operating suture. Thus, when the pull-out member is pulled, it can move the suture locking mechanism within the sleeve assembly to a position corresponding to the first notch, ultimately allowing the suture locking mechanism to be released from the first notch. This effectively improves the efficiency of detaching the suture locking mechanism and the operating suture from the suture locking device, and the product structure is simple and easy to implement.

[0007] In some embodiments, the locking device further includes: an end portion disposed at the distal end of the sleeve assembly, wherein the proximal end of the end portion is adjacent to the receiving space.

[0008] In the above embodiment, the end cap is sealed at the far end of the sleeve assembly, and the accommodating space is located between the end cap and the sheath. When the pull-out component is installed in the accommodating space, the end cap can prevent the pull-out component from detaching from the end of the sleeve assembly away from the locking handle, thus ensuring the reliability of the pull-out component when it is installed in the accommodating space.

[0009] In some embodiments, the wire locking device further includes: a wire locking mechanism disposed within the accommodating space, wherein the wire locking handle is adapted to drive the wire locking mechanism to lock or unlock the operating wire, and the wire locking mechanism is adapted to disengage from the sleeve assembly from the first notch under the action of the pull-out member.

[0010] In the above embodiments, when the locking mechanism is installed inside the sleeve assembly, the operating wire can be locked. Specifically, the locking mechanism can be installed between the pull-out member and the locking handle, and abut against one end of the pull-out member. In this way, when the pull-out member is driven to move closer to the locking handle, the locking mechanism can be moved, and finally the locking mechanism can be released from the first notch.

[0011] In some embodiments, the sleeve assembly is provided with a second notch and a third notch communicating with the accommodating space; the locking mechanism includes a locking sleeve and a locking member adapted to the locking sleeve, the locking sleeve is provided with a threading hole in the diametrical direction, one end of the operating wire passes through the second notch into the threading hole and is led out from the third notch, and the locking handle is adapted to drive the locking member to insert or disengage from the locking sleeve to lock or unlock the operating wire.

[0012] In the above embodiment, a through-hole is provided in the diameter direction of the locking sleeve, and a second notch and a third notch are provided at intervals on the periphery of the sleeve assembly, with the second notch communicating with the through-hole and the third notch. Thus, before locking the operating cable, the first end of the operating cable can be passed through the through-hole from the second notch and then led out from the third notch to the outside of the sleeve assembly. When locking the operating cable, the locking handle can be used to drive the locking member to move in the direction of the locking sleeve, and finally insert the locking member into the locking sleeve, thereby locking the operating cable located inside the locking sleeve.

[0013] Specifically, when the locking mechanism is installed inside the sleeve assembly, the locking sleeve abuts against the pull-out member inside the sleeve assembly. When the locking member is inserted into the locking sleeve, it can abut against the pull-out member, thereby locking the operating line between the pull-out member and the locking member.

[0014] Understandably, the radial dimensions of the second and third notches along the sleeve assembly are smaller than the outline diameter of the locking mechanism, to prevent the locking mechanism from detaching from the sleeve assembly at the second or third notch.

[0015] In some embodiments, the locking handle includes: a handle body connected to one end of the sheath away from the sleeve assembly; and a locking drive member movably connected to the other end of the handle body away from the sheath, the locking drive member being used to connect with the locking member and drive the locking member to insert into or disengage from the locking sleeve to lock or unlock the operating cable.

[0016] In the above embodiment, the locking handle includes a handle body and a locking drive component. The handle body is connected to the end of the sheath furthest from the sleeve assembly, and the locking drive component is movably connected to the other end of the handle body. When the locking drive component moves relative to the handle body, it connects with the locking component and drives the locking component to insert into the locking sleeve, thereby clamping the operating cable between the locking sleeve and the locking component, or abutting against the pull-out component and the locking component.

[0017] In some embodiments, the locking drive includes a locking knob and a locking push rod connected to the locking knob; wherein, the handle body defines a movable cavity, the locking knob is partially located in the movable cavity, and is adapted to drive the locking push rod to move toward or away from the locking member, so that the locking push rod is connected to or disengaged from the locking member, and the locking knob is adapted to drive the locking member to screw into or out of the locking sleeve when rotated.

[0018] In the above embodiment, a movable cavity is defined within the handle body, located on the side near the locking drive member. The locking drive member includes a locking knob and a locking push rod connected to the locking knob. The locking knob is partially disposed within the movable cavity and can move relative to the movable cavity towards or away from the locking member, thereby driving the locking push rod to move towards or away from the locking member. When it is necessary to lock the operating cable, the locking knob can drive the locking push rod to connect with the locking member, and the locking knob can be rotated to screw the locking member into the locking sleeve, thereby locking the operating cable.

[0019] For example, when it is necessary to lock the operating line, the locking push rod connects to the locking component, and drives the locking component to rotate clockwise relative to the locking sleeve, thereby achieving a threaded connection between the locking component and the locking sleeve, ultimately locking the operating line. When it is necessary to release the operating line, the locking push rod connects to the locking component, and drives the locking component to rotate counterclockwise relative to the locking sleeve, thereby disengaging the locking component from the locking sleeve and releasing the operating line. The structure and principle are relatively simple and easy to implement.

[0020] In some embodiments, one of the locking wire member and the locking push rod is provided with a connecting groove, and the other is provided with a connecting post that is inserted into the connecting groove. The connecting post is inserted into the connecting groove, so that the locking push rod is connected to the locking wire member.

[0021] In the above embodiments, a connecting groove can be provided on the locking wire component, and a connecting post can be provided on the locking push rod. When the locking knob moves towards the locking wire component within the movable cavity, it can drive the connecting post on the locking push rod to engage with the connecting groove on the locking wire component. This, in turn, can drive the locking wire component to continue moving towards the lock sleeve to insert into the lock sleeve, ultimately clamping the operating cable between the lock sleeve and the locking wire component, or abutting against the pull-out component and the locking wire component. Conversely, a connecting post can also be provided on the locking wire component, and a connecting groove can be provided on the locking push rod.

[0022] In some embodiments, the connecting groove is in the shape of a straight line or a cross.

[0023] In the above embodiments, the connecting groove is in the shape of a straight line or a cross. Correspondingly, one end of the connecting post is also in the shape of a straight line or a cross that matches the connecting groove. This makes it easy for the connecting post to be inserted into the connecting groove, and at the same time, it makes it easy for the locking rod to drive the locking component to rotate relative to the locking sleeve.

[0024] In some embodiments, the inner circumferential surface of the lock sleeve is provided with an internal thread, and the outer circumferential surface of the locking wire member is provided with an external thread, the locking wire member being used for threaded connection with the lock sleeve.

[0025] In the above embodiments, for example, the locking sleeve can be a locking nut, and the locking component can be a locking stud adapted to the locking nut. When the locking stud is screwed into the locking nut and locks the operating cable, the reliability of the operating cable locking can be guaranteed. Furthermore, part of the operating cable will also be locked between the locking component and the locking sleeve, which further helps to improve the reliability of the operating cable locking.

[0026] In some embodiments, the outer peripheral surface of the lock sleeve is provided with a limiting protrusion, which is inserted into the second notch or the third notch.

[0027] In the above embodiments, when the locking member rotates relative to the locking sleeve for threaded connection by inserting the limiting protrusion into the second or third notch, the second or third notch can act as a stop and limit, preventing the locking sleeve from rotating relative to the sleeve assembly, ensuring that the locking member can quickly connect to the locking sleeve threadedly, so as to quickly lock the operating line.

[0028] In some embodiments, the handle body includes a first housing and a second housing symmetrically disposed with respect to the first housing, wherein the first housing and the second housing define the movable cavity and a communicating groove communicating with the movable cavity, the communicating groove being located on the side of the handle body away from the tightening knob.

[0029] In the above embodiments, the handle body includes a first housing and a second housing, which are disposed opposite to each other and fixedly connected by threads. A movable cavity and a communicating groove communicating with the movable cavity are defined between the first housing and the second housing. The movable cavity is located at the end of the handle body away from the sleeve assembly, and the communicating groove is located at the end of the handle body near the sleeve assembly, for connecting the sleeve assembly and allowing the locking push rod to pass through.

[0030] In some embodiments, the sleeve assembly includes a first sleeve and a second sleeve connected to the first sleeve. The first sleeve has a first notch, a second notch and a third notch. The other end of the second sleeve is connected to the communicating groove. The end of the locking push rod away from the locking knob extends through the second sleeve into the first sleeve.

[0031] For example, the sleeve assembly includes a first sleeve and a second sleeve. One end of the first sleeve is connected to an end cap, and a first notch, a second notch, and a third notch are spaced apart on the side of the first sleeve near the end cap. The first and second notches are interconnected. One end of the second sleeve is connected to the first sleeve, and the other end is inserted into a communicating groove and connected to the handle body. One end of the locking push rod is located in the movable cavity and fixedly connected to the locking knob. The other end passes through the communicating groove and extends into the first sleeve to facilitate connection with the locking wire component and drive the locking wire component to insert into the locking sleeve to lock the operating wire.

[0032] In some embodiments, the locking handle further includes a tension adjustment member, which is rotatably connected to the outer periphery of the handle body. The tension adjustment member is used to fixably connect to the operating cable and to adjust the tension of the operating cable.

[0033] In the above embodiments, the locking handle also includes a tension adjustment component that is rotatably connected to the outer periphery of the handle body. When the first end of the operating cable is led out from the third notch, it is fixedly connected to the tension adjustment component. The tension adjustment component can be rotated clockwise or counterclockwise relative to the locking handle to adjust the tension of the operating cable.

[0034] In some embodiments, the tension adjustment member includes an adjustment disc, and the adjustment disc is provided with a fixing part for fixing one end of the operating line.

[0035] In the above embodiments, the tension adjustment component includes an adjustment disc, which is disc-shaped and easy for the operator to hold and operate. The fixing part can be a fixing hole or a fixing rod to facilitate the fixing of the operating line.

[0036] In some embodiments, the locking device further includes: a pull-out member and a pull wire connected to the pull-out member, the pull-out member being disposed within the accommodating space for fixing the pull wire, and the pull wire being adapted to move the locking mechanism from the first notch to the outside of the sleeve assembly when pulled toward the direction of the locking handle.

[0037] In the above embodiment, by providing a pull-out member between the end and the locking sleeve, and fixing the first end of the pull wire to the pull-out member, and the second end of the pull wire extending outside the locking device, the operator can pull the second end of the pull wire to move away from the end and move the locking mechanism to the first notch of the sleeve assembly, thereby removing the locking mechanism from the first notch and leaving it in the human body, which facilitates the removal of the remaining structural components of the locking device from the human body through the blood vessel passage.

[0038] In some embodiments, the pull-out member includes a pull-out post, the pull-out post having a connecting hole along its axial direction, the connecting hole being used to fix the pull wire.

[0039] In the above embodiment, the pull-out member includes a pull-out post, and the pull-out post has a connecting hole in the axial direction, the connecting hole being used to fix the pull wire. Attached Figure Description

[0040] 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.

[0041] Figure 1 A three-dimensional structural schematic diagram of a locking device provided in some embodiments of this application;

[0042] Figure 2 A cross-sectional view of the locking device provided in some embodiments of this application during the locking process;

[0043] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0044] Figure 4 A cross-sectional view of the locking device provided in some embodiments of this application in a locked state;

[0045] Figure 5 for Figure 4 Enlarged structural diagram of section B in the middle;

[0046] Figure 6A cross-sectional view of the wire locking device provided in some embodiments of this application in a pulled-out state;

[0047] Figure 7 for Figure 6 Enlarged structural diagram of section C;

[0048] Figure 8 A three-dimensional structural schematic diagram of the first sleeve provided for some embodiments of this application;

[0049] Figure 9 A three-dimensional structural schematic diagram of the lock sleeve provided in some embodiments of this application;

[0050] Figure 10 This is a three-dimensional structural diagram of a pull-out component provided in some embodiments of this application.

[0051] Icon: 1000 - Locking device;

[0052] 100-Locking handle; 200-Sleeve assembly; 300-End; 400-Locking mechanism; 500-Operating cable body; 600-Pull-out component; 700-Pull cable;

[0053] 11-Handle body; 12-Locking drive; 13-Tightness adjustment; 21-First notch; 22-Second notch; 23-Third notch; 41-Locking sleeve; 42-Locking wire; 61-Connecting hole;

[0054] 111-Moving cavity; 112-Connecting groove; 121-Locking push rod; 122-Locking knob; 131-Fixing part; 411-Wire hole; 421-Connecting groove;

[0055] 1211 - Connecting post; 1221 - Connecting hole. Detailed Implementation

[0056] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0057] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, the term "distal" refers to the end of the component in the locking device closer to the heart tissue, and "proximal" refers to the end of the component in the locking device closer to the operator. The terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0058] Please refer to Figures 1 to 5According to some embodiments of this application, this application provides a locking device 1000, including: a locking handle 100; a sheath connected to the locking handle 100; and a sleeve assembly 200 connected to the distal end of the sheath, the sleeve assembly 200 having a receiving space for accommodating a pull-out member 600, and the sleeve assembly 200 having a first notch 21 for installing and releasing a locking mechanism 400.

[0059] In the above embodiments, the suture locking device 1000 includes a suture locking handle 100, a sheath, and a sleeve assembly 200. The suture locking handle 100 is used to deliver the sheath into the annular tissue. The sleeve assembly 200 is located on the side of the sheath away from the suture locking handle 100, and has a space for accommodating a pull-out member 600, as well as a first notch 21 for installing and releasing the suture locking mechanism 400. The suture locking mechanism 400 locks the operating suture 500. Thus, when the pull-out member 600 is pulled, it can move the suture locking mechanism 400 within the sleeve assembly 200 to a position corresponding to the first notch 21, ultimately allowing the suture locking mechanism 400 to be released from the first notch 21. This effectively improves the efficiency of detaching the suture locking mechanism 400 and the operating suture 500 from the suture locking device 1000, and the product structure is simple and easy to implement.

[0060] Please refer to Figure 3 , Figure 5 and Figure 7 According to some embodiments of this application, the locking device further includes: an end 300 disposed at the distal end of the sleeve assembly 200, and the proximal end of the end 300 adjacent to the receiving space.

[0061] In the above embodiment, the end 300 is sealed at the far end of the sleeve assembly 200, and the accommodating space is located between the end 300 and the sheath. When the pull-out member is installed in the accommodating space, the end 300 can prevent the pull-out member from detaching from the end of the sleeve assembly 200 away from the locking handle 100, thus ensuring the reliability of the pull-out member 600 when installed in the accommodating space.

[0062] Please refer to Figure 3 , Figure 5 and Figure 7 According to some embodiments of this application, the wire locking device 1000 further includes: a wire locking mechanism 400 disposed in the accommodating space, the wire locking handle 100 being adapted to drive the wire locking mechanism 400 to lock or unlock the operating wire 500, and the wire locking mechanism 400 being adapted to disengage from the sleeve assembly 200 from the first notch 21 under the action of the pull-out member 600.

[0063] In the above embodiment, when the locking mechanism 400 is installed inside the sleeve assembly 200, the operating wire 500 can be locked. Specifically, the locking mechanism 400 can be installed between the pull-out member 600 and the locking handle, and abut against one end of the pull-out member 600. In this way, when the pull-out member 600 is driven to move towards the locking handle, the locking mechanism 400 can be moved, and finally the locking mechanism 400 can be released from the first notch 21.

[0064] Please refer to Figure 3 , Figure 5 , Figure 7 and Figure 8 According to some embodiments of this application, the sleeve assembly 200 is provided with a second notch 22 and a third notch 23 communicating with the accommodating space; the locking mechanism 400 includes a locking sleeve 41 and a locking member 42 adapted to the locking sleeve 41. The locking sleeve 41 is provided with a threading hole 411 in the diametrical direction. One end of the operating wire 500 passes through the second notch 22 into the threading hole 411 and is led out from the third notch 23. The locking handle 100 is adapted to drive the locking member 42 to insert or disengage from the locking sleeve 41 to lock or unlock the operating wire 500.

[0065] In the above embodiment, a through-hole 411 is provided in the diameter direction of the locking sleeve 41, and a second notch 22 and a third notch 23 are provided at intervals on the periphery of the sleeve assembly 200. The second notch 22 communicates with the through-hole 411 and the third notch 23. Thus, before locking the operating cable 500, the first end of the operating cable 500 can be passed through the through-hole 411 through the second notch 22, and then led out to the outside of the sleeve assembly 200 through the third notch 23. When locking the operating cable 500, the locking member 42 can be driven to move in the direction of the locking sleeve 41 by the locking handle 100, and finally the locking member 42 is inserted into the locking sleeve 41, thereby locking the operating cable 500 located in the locking sleeve 41.

[0066] Specifically, when the locking mechanism 400 is installed inside the sleeve assembly 200, the locking sleeve 41 abuts against the pull-out member 600 inside the sleeve assembly 200. When the locking member 42 is inserted into the locking sleeve 41, it can abut against the pull-out member 600. The operating line 500 can be clamped between the locking sleeve 41 and the locking member 42, or abut against the pull-out member 600 and the locking member 42.

[0067] Understandably, the radial dimensions of the second notch 22 and the third notch 23 along the sleeve assembly 200 are smaller than the outline diameter of the locking mechanism 400, so as to prevent the locking mechanism 400 from disengaging from the sleeve assembly 200 at the second notch 22 or the third notch 23.

[0068] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 According to some embodiments of this application, the locking handle 100 includes: a handle body 11 connected to one end of the sheath away from the sleeve assembly 200; and a locking drive member movably connected to the other end of the handle body 11 away from the sheath. The locking drive member is used to connect with the locking member 42 and drive the locking member 42 to insert into or disengage from the locking sleeve 41 to lock or unlock the operating cable 500.

[0069] In the above embodiment, the locking handle 100 includes a handle body 11 and a locking drive. The handle body 11 is connected to the end of the sheath away from the sleeve assembly 200, and the locking drive is movably connected to the other end of the handle body 11. When the locking drive moves relative to the handle body 11, it can connect with the locking member 42 and drive the locking member 42 into the locking sleeve 41, thereby locking the operating cable 500 between the pull-out member 600 and the locking member 42.

[0070] Please refer to Figure 3 , Figure 5 and Figure 7 According to some embodiments of this application, the locking drive includes a locking knob 122 and a locking push rod 121 connected to the locking knob 122; wherein, a movable cavity 111 is defined in the handle body 11, the locking knob 122 is partially located in the movable cavity 111, and is adapted to drive the locking push rod 121 to move toward or away from the locking member 42, so that the locking push rod 121 is connected or disengaged from the locking member 42, and when the locking knob 122 is rotated, it is adapted to drive the locking member 42 to screw into or out of the locking sleeve 41.

[0071] In the above embodiment, a movable cavity 111 is defined within the handle body 11. The movable cavity 111 is located on the side near the locking drive member 12. The locking drive member 12 includes a locking knob 122 and a locking push rod 121 connected to the locking knob 122. The locking knob 122 is partially disposed within the movable cavity 111 and can move relative to the movable cavity 111 towards or away from the locking member 42, thereby driving the locking push rod 121 towards or away from the locking member 42. When it is necessary to lock the operating cable 500, the locking knob 122 can drive the locking push rod 121 to connect with the locking member 42, and the locking knob 122 can be rotated to screw the locking member 42 into the locking sleeve 41, thereby locking the operating cable 500.

[0072] For example, when it is necessary to lock the operating cable 500, after the locking push rod 121 is connected to the locking member 42, the locking member 42 is driven to rotate clockwise relative to the locking sleeve 41, thereby achieving a threaded connection between the locking member 42 and the locking sleeve 41, and ultimately locking the operating cable 500. When it is necessary to release the operating cable 500, after the locking push rod 121 is connected to the locking member 42, the locking member 42 is driven to rotate counterclockwise relative to the locking sleeve 41, thereby disengaging the locking member 42 from the locking sleeve 41, and thus releasing the operating cable 500 from locking. The structure and principle are relatively simple and easy to implement.

[0073] Please refer to Figure 7 According to some embodiments of this application, one of the locking wire member 42 and the locking push rod 121 is provided with a connecting groove 421, and the other is provided with a connecting post 1211 that is inserted into the connecting groove 421. The connecting post 1211 is inserted into the connecting groove 421, so that the locking push rod 121 is connected to the locking wire member 42.

[0074] In the above embodiment, a connecting groove 421 can be provided on the locking wire member 42, and a connecting post 1211 can be provided on the locking push rod 121. When the locking knob 122 moves towards the locking wire member 42 in the movable cavity 111, it can drive the connecting post 1211 on the locking push rod 121 to engage with the connecting groove 421 on the locking wire member 42. This can then drive the locking wire member 42 to continue moving towards the locking sleeve 41 to insert into the locking sleeve 41, ultimately clamping the operating wire 500 between the locking sleeve 41 and the locking wire member 42, or abutting against the pull-out member 600 and the locking wire member 42. Conversely, a connecting post 1211 can also be provided on the locking wire member 42, and a connecting groove 421 can be provided on the locking push rod 121.

[0075] According to some embodiments of this application, the connecting groove 421 is in the shape of a straight line or a cross.

[0076] In the above embodiments, the connecting groove 421 is in the shape of a straight line or a cross. Correspondingly, one end of the connecting post 1211 is also in the shape of a straight line or a cross that matches the connecting groove 421. This makes it easy for the connecting post 1211 to be inserted into the connecting groove 421, and at the same time, it makes it easy for the locking rod to drive the locking member 42 to rotate relative to the locking sleeve 41.

[0077] According to some embodiments of this application, the inner circumferential surface of the locking sleeve 41 is provided with an internal thread, and the outer circumferential surface of the locking wire member 42 is provided with an external thread. The locking wire member 42 is used to be threadedly connected to the locking sleeve 41.

[0078] In the above embodiments, for example, the locking sleeve 41 can be a locking nut, and the locking member 42 can be a locking stud adapted to the locking nut. When the locking stud is screwed into the locking nut and locks the operating line 500, the reliability of the locking of the operating line 500 can be guaranteed. Furthermore, a portion of the operating line 500 will also be locked between the locking member 42 and the locking sleeve 41, thereby further improving the reliability of the locking of the operating line 500.

[0079] Please refer to Figure 9 According to some embodiments of this application, the outer peripheral surface of the lock sleeve 41 is provided with a limiting protrusion, which is inserted into the second notch 22 or the third notch 23.

[0080] In the above embodiment, when the locking member 42 rotates relative to the locking sleeve 41 for threaded connection by inserting the limiting protrusion into the second notch 22 or the third notch 23, the second notch 22 or the third notch 23 can play a stop and limit role, preventing the locking sleeve 41 from rotating relative to the sleeve assembly 200, ensuring that the locking member 42 can quickly connect with the locking sleeve 41 for threaded connection, so as to quickly lock the operating line 500.

[0081] Please refer to Figure 2 , Figure 4 and Figure 6 According to some embodiments of this application, the handle body 11 includes a first housing and a second housing symmetrically arranged with respect to the first housing. A movable cavity 111 and a communicating groove 112 communicating with the movable cavity 111 are defined between the first housing and the second housing. The communicating groove 112 is located on the side of the handle body 11 away from the tightening knob. The sleeve assembly 200 includes a first sleeve and a second sleeve connected to the first sleeve. The first sleeve has a first notch 21, a second notch 22 and a third notch 23. The other end of the second sleeve is connected to the communicating groove 112. The end of the locking push rod 121 away from the locking knob 122 extends into the first sleeve through the second sleeve.

[0082] In the above embodiment, the handle body 11 includes a first housing and a second housing, which are disposed opposite to each other and fixedly connected by threads. A movable cavity 111 and a communicating groove 112 communicating with the movable cavity 111 are defined between the first housing and the second housing. The movable cavity 111 is located at the end of the handle body 11 away from the sleeve assembly 200, and the communicating groove 112 is located at the end of the handle body 11 near the sleeve assembly 200, for connecting the sleeve assembly 200 and allowing the locking push rod 121 to pass through.

[0083] For example, the sleeve assembly 200 includes a first sleeve and a second sleeve. One end of the first sleeve is connected to an end 300, and a first notch 21, a second notch 22, and a third notch 23 are spaced apart on the side of the first sleeve near the end 300. The first notch 21 and the second notch 22 are interconnected. One end of the second sleeve is connected to the first sleeve, and the other end is inserted into the connecting groove 112 and connected to the handle body 11. One end of the locking push rod 121 is located in the movable cavity 111 and is fixedly connected to the locking knob 122. The other end passes through the connecting groove 112 and extends into the first sleeve to connect with the locking wire member 42 and drive the locking wire member 42 to insert into the locking sleeve 41 to lock the operating wire 500.

[0084] Please refer to Figure 1 and Figure 2 According to some embodiments of this application, the locking handle 100 further includes a tension adjustment member 13, which is rotatably connected to the outer periphery of the handle body 11. The tension adjustment member 13 is used to be fixedly connected to the operating cable 500 and to adjust the tension of the operating cable 500.

[0085] In the above embodiment, the locking handle 100 also includes a tension adjustment member 13 that is rotatably connected to the outer periphery of the handle body 11. When the first end of the operating cable 500 is led out from the third notch 23, it is fixedly connected to the tension adjustment member 13. The tension adjustment member 13 can rotate clockwise or counterclockwise relative to the locking handle 100 to adjust the tension of the operating cable 500.

[0086] According to some embodiments of this application, the tension adjustment member 13 includes an adjustment disc, on which a fixing part 131 is provided, which is used to fix one end of the operation line 500.

[0087] In the above embodiment, the tension adjustment member 13 includes an adjustment disc, which is disc-shaped and easy for the operator to hold and operate. The fixing part 131 can be a fixing hole or a fixing rod to facilitate the fixing of the operating line 500.

[0088] Please refer to Figure 3 , Figure 5 and Figure 10 According to some embodiments of this application, the locking device 1000 further includes: a pull-out member 600 and a pull wire 700 connected to the pull-out member 600. The pull-out member 600 is disposed in the accommodating space and is used to fix the pull wire 700. When the pull wire 700 is pulled in a direction close to the locking handle 100, it is adapted to drive the locking mechanism 400 to move from the first notch 21 to the outside of the sleeve assembly 200.

[0089] In the above embodiment, by providing a pull-out member 600 between the end 300 and the locking sleeve 41, and fixing the first end of the pull wire 700 to the pull-out member 600, and the second end of the pull wire 700 extending outside the locking device 1000, the operator can move the second end of the pull wire 700 away from the end 300 by pulling it, and move the locking mechanism 400 to the first notch 21 of the sleeve assembly 200, thereby removing the locking mechanism 400 from the first notch 21 and leaving it in the human body, which facilitates the removal of the remaining structural components of the locking device from the human body through the blood vessel passage.

[0090] Specifically, the locking knob has a connecting hole 1221 that communicates with the sleeve assembly 200, the connecting groove 112 and the movable cavity 111, and the second end of the pull wire is led out from the connecting hole to the outside of the locking device 1000.

[0091] Please refer to Figure 10 According to some embodiments of this application, the pull-out member 600 includes a pull-out post, and the pull-out post has a connecting hole 61 in the axial direction, the connecting hole 61 being used to fix the pull wire 700.

[0092] In the above embodiment, the pull-out member 600 includes a pull-out post, and the pull-out post has a connecting hole 61 in the axial direction. The connecting hole 61 is used to fix the pull wire 700.

[0093] The above description is merely an 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. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0094] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should 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.

[0095] 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 thread locking device, characterized by, The locking device comprises: a locking handle; a sheath connected with the locking handle; a sleeve assembly connected to a distal end of the sheath, the sleeve assembly having a receiving space for placing a puller, and the sleeve assembly being provided with a first notch for mounting and releasing a locking mechanism, the first notch being arranged on a side wall of the sleeve assembly; the locking device further comprises: a locking mechanism arranged in the receiving space, the locking mechanism comprising a locking sleeve and a locking element matched with the locking sleeve; the locking handle is adapted to drive the locking mechanism to lock or unlock an operating wire body, and the locking mechanism is adapted to be separated from the sleeve assembly under the driving of the puller; the puller is adapted to drive the locking mechanism to move from the first notch to the outside of the sleeve assembly when the puller is pulled towards the locking handle.

2. The locking wire device of claim 1, wherein the locking device further comprises: a tip arranged at a distal end of the sleeve assembly, and a proximal end of the tip being adjacent to the receiving space.

3. The locking wire device of claim 1, wherein the sleeve assembly is further provided with a second notch and a third notch in communication with the receiving space; a through hole is arranged in a diameter direction of the locking sleeve, one end of the operating wire body is inserted into the through hole through the second notch and led out from the third notch, and the locking handle is adapted to drive the locking element to be inserted into or separated from the locking sleeve to lock or unlock the operating wire body.

4. The locking wire device of claim 3, wherein the locking handle comprises: a handle body connected with one end of the sheath away from the sleeve assembly; a locking driving element movably connected with the other end of the handle body away from the sheath, the locking driving element being used for connecting with the locking element and driving the locking element to be inserted into or separated from the locking sleeve to lock or unlock the operating wire body.

5. The locking device according to claim 4, wherein: the locking driving element comprises a locking knob and a locking push rod connected with the locking knob; wherein an active cavity is defined in the handle body, the locking knob is partially arranged in the active cavity, and the locking knob is adapted to drive the locking push rod to move towards or away from the locking element to connect or separate the locking push rod with the locking element, and the locking knob is adapted to drive the locking element to be screwed into or out of the locking sleeve when the locking knob is rotated.

6. The locking device according to claim 5, wherein: one of the locking element and the locking push rod is provided with a connecting groove, and the other is provided with a connecting column matched with the connecting groove, the connecting column is inserted into the connecting groove, so that the locking push rod is connected with the locking element.

7. The locking device according to claim 6, wherein: the connecting groove is in the shape of a straight line or a cross.

8. The locking device according to claim 3, wherein: an inner thread is arranged on an inner circumferential surface of the locking sleeve, an outer thread is arranged on an outer circumferential surface of the locking element, and the locking element is used for being threadedly connected with the locking sleeve.

9. The locking device according to claim 3, wherein: a limiting protrusion is arranged on the outer circumferential surface of the locking sleeve, and the limiting protrusion is inserted into the second notch or the third notch.

10. The locking device according to claim 5, wherein: The handle body comprises a first shell and a second shell symmetrically arranged with the first shell, and the first shell and the second shell define the movable cavity and a communication groove communicated with the movable cavity.

11. The thread locking device of claim 10, wherein, The sleeve assembly comprises a first sleeve and a second sleeve connected with the first sleeve, the first sleeve is provided with the first notch, the second notch and the third notch, and the other end of the second sleeve is connected in the communication groove, and the end of the locking push rod away from the locking knob extends into the first sleeve through the second sleeve.

12. The locking wire device of claim 4, wherein, The thread locking handle further comprises: A tightness adjusting member is rotatably connected with the outer circumferential side of the handle body, the tightness adjusting member is used for fixedly connecting with the operation line body, and is used for adjusting the tightness of the operation line body.

13. The thread locking device of claim 12, wherein, The tightness adjusting member comprises an adjusting disc, and the adjusting disc is provided with a fixing portion, and the fixing portion is used for fixing one end of the operation line body.

14. The locking wire device of claim 1, wherein, The thread locking device further comprises: A pulling-off member and a pull line connected with the pulling-off member, the pulling-off member is arranged in the accommodating space, and when the pull line is pulled towards the direction close to the thread locking handle, the thread locking mechanism is adapted to be moved from the first notch to the outside of the sleeve assembly.

15. The thread locking device of claim 14, wherein, The pulling-off member comprises a pulling-off column, and the axis direction of the pulling-off column is provided with a connecting hole, and the connecting hole is used for fixing the pull line.

Images