WO2023109638A1

WO2023109638A1 - Clamping device and valve repair system

Info

Publication number: WO2023109638A1
Application number: PCT/CN2022/137502
Authority: WO
Inventors: 黄辉; 邢怒安
Original assignee: 瀚芯医疗科技(深圳)有限公司
Priority date: 2021-12-17
Filing date: 2022-12-08
Publication date: 2023-06-22
Also published as: CN115414082A

Abstract

A clamping device and a valve repair system belong to the technical field of medical instruments, and can be used for capturing a valve. A clamping device (10) comprises a proximal collet (12), a distal collet (11), and a support mechanism (13); the distal collet (11) is movably connected to the proximal collet (12), and can move close to the proximal collet (12) to clamp a valve, or move away from the proximal collet (12) to form a clamping space (15) with the proximal collet (12); the support mechanism (13) comprises a support member (131) and a control member (132), and the support member (131) is movably connected to the proximal collet (12); the control member (132) is connected to the support member (131) to drive the support member (131) to switch between a folded state close to the proximal collet (12) and an open state supporting the valve; and the outer surface of the proximal collet (12) is provided with a receiving space (121) used for receiving the support member (131) in the folded state. The valve repair system comprises the clamping device. The present application aims to solve the technical problem of significant difficulty of valve capture in the prior art.

Description

A clamping device and valve repair system

This application claims the priority of the Chinese patent application with the application number 202111551605.6 and the title of the invention "A Clamping Device and Valve Repair System" filed at the China Patent Office on December 17, 2021, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of medical devices, in particular to a clamping device and a valve repair system.

Background technique

In the existing chordae implantation and suturing technology, the valve is clamped and captured by the chuck structure, and then the valve is sutured and implanted into the chordae. However, because the valve is always in a floating state, especially the prolapsed valve, it is difficult to quickly and effectively capture the valve only through the chuck structure, which greatly increases the operation time, increases the difficulty of operation, and reduces the work efficiency. .

technical problem

One of the objectives of the embodiments of the present application is to provide a clamping device and a valve repair system.

technical solution

The technical scheme that the embodiment of the present application adopts is:

In a first aspect, a clamping device is provided, comprising:

proximal chuck;

The distal clamp is movably connected with the proximal clamp and can move close to the proximal clamp to clamp the valve, or move away from the proximal clamp to engage with the proximal clamp A clamping space is formed between the heads; and

The supporting mechanism includes a supporting part and a control part, and the supporting part is movably connected to the proximal chuck; the controlling part is connected with the supporting part to drive the supporting part close to the Switch between the folded state of the end clamp and the open state supporting the valve; the outer surface of the proximal clamp is provided with an accommodating space for accommodating the supporting member in the folded state; the accommodating space It is a groove consistent with the shape of the supporting member.

In one embodiment, the control member includes a flexible wire member, the control member has a control end and an operating end away from the control end, the control end is connected to the supporting member, and the operating end It is used for inputting a driving force, so that the control member pushes or pulls the support member to switch between the folded state and the open state.

In one embodiment, the control member is passed through the inside of the proximal clamp and can move inside the proximal clamp, and the control end can extend outside the proximal clamp Connect with the support.

In one embodiment, the supporting member includes a ring-shaped frame body, the supporting member has a connecting end and a supporting end disposed away from each other, and the supporting member is connected to the proximal end at the connecting end. The end chuck is rotatably connected, and the support end is hinged to the control end.

In one embodiment, the supporting member includes a connecting body and a ring-shaped frame body, the frame body has a connecting end and a supporting end arranged away from each other, and the frame body is connected to the connecting end at the The proximal chuck is rotatably connected; the connecting body is connected to the supporting end and extends toward the connecting end, and the extending end of the connecting body is hinged to the control end.

In one embodiment, the supporting member is rod-shaped, and the supporting member has a connecting end and a supporting end opposite to the connecting end; The end clamp is rotatably connected; the control end is fixedly connected to the connection end, or the control end is hinged to the supporting end.

In one embodiment, the clamping device further includes a clamping structure movably connected to the distal chuck, the clamping structure includes a clamping part and a power part, and the clamping part is close to the clamping Spatially arranged, the power part is connected with the clamping part to drive the clamping part to switch between a storage state close to the distal chuck and an expanded state of clamping the valve together with the supporting part.

In one embodiment, an accommodating space for accommodating the clamping piece in a stored state is opened on the outer surface of the distal clamp, and the accommodating space is a groove consistent with the shape of the clamping piece.

In one embodiment, the clamping member includes a ring-shaped clamping frame, and the clamping frame is rotatably connected to the distal chuck; the power element is a metal wire or a polymer wire with toughness, The power element is passed through the distal clamp and the proximal clamp.

In one embodiment, a telescopic mechanism is provided between the distal joint and the proximal clamp, so that the distal clamp can move relative to the proximal clamp.

In one embodiment, both the distal collet and the proximal collet are cylindrical.

In one embodiment, a positioning structure for positioning is provided between the distal chuck and the proximal chuck.

In one embodiment, a buckle structure is provided between the distal collet and the proximal collet for fixing the distal collet and the proximal collet.

In a second aspect, a valve repair system is provided, including a handle control device and the clipping device according to any one of the above, the handle control device is connected with the control member to control the movement of the control member.

In one embodiment, it further includes an extended guide member, the guide member is connected between the clamping device and the handle control device, and the control member passes through the guide member.

Beneficial effect

The beneficial effect of the clamping device provided by the embodiment of the present application is that: when the clamping device captures the valve, the clamping device enters the inside of the body from the outside of the body and moves to a position close to the valve when the support mechanism is folded. When the chuck is close to the valve, the distal chuck moves relative to the proximal chuck to form a clamping space, and the supporting mechanism can be opened at any time during the process of capturing the valve, and the supporting part is controlled by the control part to open to form a supporting surface, capturing During the process of the valve, the connecting end surfaces of the distal chuck and the proximal chuck and the supporting surface of the supporting member are in contact with the valve, which can increase the clamping and supporting area of the valve and limit the fluttering range of the valve. The valve is easier to be captured; after the valve is captured, the valve is clamped in the clamping space between the distal clamp and the proximal clamp, and the supporting member can further support the valve outside the clamping space.

The beneficial effect of the valve repair system provided by the embodiment of the present application is that: in this valve repair system, the handle control device controls the movement of the control member, so that the supporting mechanism can be opened at any time during the process of capturing the valve, and the control member controls the opening of the supporting member In the process of forming a supporting surface and capturing the valve, the connecting end surfaces of the distal chuck and the proximal chuck and the supporting surface of the supporting member are in contact with the valve, which can increase the clamping and supporting area of the valve. Limit the fluttering range of the valve and make the valve easier to be captured; after the valve is captured, the valve is clamped in the clamping space between the distal clamp and the proximal clamp, and the supporting member can support the valve outside the clamping space. The valve is further supported.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments or exemplary technical descriptions. Obviously, the accompanying drawings in the following descriptions are only for this application. For some embodiments, those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a clamping device provided in an embodiment of the present application;

Fig. 2 is a schematic structural view of the state where the distal chuck is far away from the proximal chuck in Fig. 1;

Fig. 3 is a schematic structural view of the supporting mechanism in Fig. 1 in a folded state;

Fig. 4 is a schematic structural view of the supporting member in Fig. 1;

Fig. 5 is a structural schematic diagram II of a clamping device provided in an embodiment of the present application;

Fig. 6 is a half sectional view of Fig. 5;

Fig. 7 is a schematic structural view of the supporting mechanism in Fig. 5 in a folded state;

Fig. 8 is a half sectional view of Fig. 7;

Fig. 9 is a schematic structural view of the supporting member in Fig. 5;

Fig. 10 is a structural schematic diagram III of a clamping device provided in an embodiment of the present application;

Fig. 11 is a schematic structural view of the state where the distal chuck is far away from the proximal chuck in Fig. 10;

Fig. 12 is a half-sectional view of Fig. 11;

Fig. 13 is a schematic structural view of the supporting member in Fig. 10;

Fig. 14 is a structural schematic diagram 4 of a clamping device provided in an embodiment of the present application;

Fig. 15 is a structural schematic diagram of the supporting part and the clamping part in the folded state in Fig. 14;

Fig. 16 is a schematic diagram of the use state of a clamping device provided by the embodiment of the present application;

Fig. 17 is a schematic structural view of a valve repair system provided by an embodiment of the present application.

Explanation of reference signs:

10. Clamping device; 11. Distal chuck; 12. Proximal chuck; 121. Accommodating space; 122. Connection groove; 13. Supporting mechanism; 131. Supporting piece; Support end; 1313, connecting body; 1314, extension end; 132, control part; 14, clamping structure; 141, clamping part; 142, power part; 15, clamping space; 20, guide part; 30, handle control device.

Embodiments of the present invention

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

In the description of this application, it is to be understood that the terms "length", "width", "upper", "lower", "upward", "vertical", "horizontal", "bottom", "inner" , "outside", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying No device or element must have a particular orientation, be constructed, and operate in a particular orientation, and thus should not be construed as limiting the application.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to Fig. 1-11, the purpose of the embodiment of the present application is to provide a clamping device 10, which can be used to capture valves, and the clamping device 10 includes a proximal clamp 12, a distal clamp 11 and a supporting mechanism 13. The distal chuck 11 is movably connected with the proximal chuck 12, and can move close to the proximal chuck 12 to clamp the valve, or move away from the proximal chuck 12 to form a gap between the proximal chuck 12. The clamping space 15, specifically, the distal clamp 11 can move relative to the proximal clamp 12 to form a clamping space 15 between the distal clamp 11 and the proximal clamp 12; the supporting mechanism 13 includes a supporting Part 131 and control part 132, supporting part 131 is movably connected to near-end chuck 12, and is arranged near clamping space 15; Switch between the folded state of the support valve and the open state of the supporting valve; wherein, when the support member 131 is in the folded state, the support member 131 is accommodated in the accommodation space 121; when the support member 131 is in the open state, the support member 131 protrudes outward On the proximal chuck 12 and close to the clamping space 15 to form a supporting part or a supporting surface for supporting the valve; referring to Fig. The accommodating space 121 of the supporting member 131 is placed; the accommodating space 121 is a groove consistent with the shape of the supporting member 131 .

It should be noted that the far end and the proximal end are determined according to the use state of the clamping device 10. When the operator holds the clamping device 10, the end close to the body is called the proximal end, and the end far away from the body is called the far end. When in use, the distal chuck 11 first touches the lesion (surgery) site.

Specifically, the distal collet 11 and the proximal collet 12 are cylindrical and coaxially arranged, the distal collet 11 can move relative to the proximal collet 12 along the central axis of the proximal collet 12, and the distal collet A telescopic mechanism, such as a telescopic rod mechanism, may be provided between 11 and the proximal chuck 12, and the distal chuck 11 can move relative to the proximal chuck 12 along the rod. The connecting end 1311 surface of the far-end chuck 11 and the proximal chuck 12 or the outer periphery of the connecting end 1311 face can also be provided with a positioning structure to facilitate the positioning of the two; A buckle structure can be added to facilitate fixing when not in use.

The support mechanism 13 is used to make the valve in a fluttering state easier to capture when the distal clamp 11 and the proximal clamp 12 capture the valve, and after the valve is captured, the support mechanism 13 can further increase the support for the valve. Supporting area, there is no need to worry about the problem of readjustment when the captured positions of the distal chuck 11 and the proximal chuck 12 are not ideal. The supporting mechanism 13 can greatly improve work efficiency and shorten operation time.

Furthermore, the support mechanism 13 adopts a foldable structure, and the support mechanism 13 includes a support member 131 and a control member 132. When the clamping device 10 reaches the vicinity of the valve, the control member 132 can control the support member 131 to protrude outward. The outside of the clamping space 15 can form a supporting surface near the clamping space 15, and the supporting surface can support the valve, especially the prolapsed valve; when the clamping device 10 is not in use , or during the process of the clamping device 10 entering the body from the outside of the body, the control member 132 can control the support member 131 to be in a folded state, so that when the support mechanism 13 passes through the apex of the heart, it is not easy to cause small wounds on the apex of the heart and The valve is damaged, which leads to a large amount of blood leakage. The supporting mechanism 13 can be opened after reaching the vicinity of the valve, which protects the apex of the heart and the valve.

Specifically, the outer surface of the proximal chuck 12 is a cylindrical surface, and the groove for accommodating the supporting member 131 is a curved groove on the cylindrical surface, and the curved groove matches the curvature of the supporting member 131. When the supporting member When the 131 is folded, it is completely matched with the curved surface groove, and the supporting member 131 is accommodated in the curved surface groove, and there is no protrusion or step on the outer surface of the proximal chuck 12 . By folding the supporting member 131 in the groove, the folding member does not occupy the external space of the proximal chuck 12, and when the proximal chuck 12 enters the body, the control member 132 can control the supporting member 131 to be accommodated in the accommodation space 121, so that when the supporting mechanism 13 passes through the apex of the heart, it is not easy to cause damage to the small wounds of the apex and the valve, thereby causing a large amount of blood leakage, and the supporting mechanism 13 can be opened after reaching the vicinity of the valve, and It can be accommodated in the accommodating space 121 to protect the heart apex and valves.

When the clamping device 10 captures the valve, when the supporting mechanism 13 is folded, the clamping device 10 enters the inside of the body from the outside of the body and moves to a position close to the valve. When the distal chuck 11 is close to the valve, the distal chuck 11 11 moves relative to the proximal chuck 12 to form a clamping space 15, the supporting mechanism 13 can be opened at any time during the process of capturing the valve, and the supporting part 131 is controlled by the control part 132 to open to form a supporting surface, during the process of capturing the valve The surface of the connecting end 1311 of the distal chuck 11 and the proximal chuck 12 and the supporting surface of the supporting member 131 are in contact with the valve, which can increase the clamping and supporting area of the valve and limit the fluttering range of the valve , so that the valve is more easily captured; after the valve is captured, the valve is clamped in the clamping space 15 between the distal clamp 11 and the proximal clamp 12, and the supporting member 131 can hold the valve outside the clamping space 15 The further support of the valve makes the state of the valve more stable, which is conducive to improving work efficiency, shortening operation time and improving the success rate of operation.

In one embodiment, as shown in FIGS. 1-3 , the control member 132 includes a flexible filamentary part. The control member 132 has a control end and an operating end away from the control end. The control end is connected to the supporting member 131, and the operating end is used for The driving force is input so that the control member 132 pushes or pulls the supporting member 131 to switch between the folded state and the opened state.

Specifically, the control member 132 can be made of tough metal wire or polymer wire, etc., and the control member 132 is made of elastic material. The control piece 132 is in the shape of a wire or a wire, and the control piece 132 can be passed through a guide channel provided inside the proximal clamp 12 or in a guide groove provided on the outer surface of the proximal clamp 12 .

In this embodiment, when the control member 132 is passed through the inside of the proximal chuck 12, a guide passage is provided inside the proximal chuck 12, and the control member 132 is passed through the guide passage and can move in the guide passage. One end of the control member 132 close to the supporting member 131 is the control end, and the end far away from the supporting member 131 is the operating end. The outer wall of the proximal chuck 12 is provided with a conduction hole, and the conduction hole communicates with the guide passage, so that The control end of the control member 132 can pass through the through hole and be connected with the support member 131. By pushing and pulling the control member 132 at the operating end, the control end of the control member 132 can push and pull the support member 131, so that the support member 131 can be in a folded state or an unfolded state.

In one embodiment, as shown in FIGS. 1-4 , the supporting member 131 includes a ring-shaped frame body. The supporting member 131 has a connecting end 1311 and a supporting end 1312 that are arranged away from each other. The supporting member 131 is connected to The end 1311 is rotatably connected with the proximal chuck 12, and the support end 1312 is hinged with the control end.

Specifically, the supporting member 131 is an arc-shaped member with equal cross-section, which is mainly made of metal or polymer material and has a certain rigidity; In the rotation hole, the rotation shaft is inserted into the rotation hole, so that the support member 131 rotates at the connection end 1311 relative to the proximal chuck 12. When the control member 132 is pushed, the rotation hole and the support member 131 rotate relatively, because the control member The elastic performance of 132 pushes up the supporting part 131 to play a supporting role for the supporting part 131, and the retreating control part 132 can close the supporting part 131 to the curved surface groove, thereby realizing the folding and opening of the supporting part 131 (or opening and closing).

In this embodiment, the distal chuck 11 and the proximal chuck 12 capture the valve through the opening and closing action, wherein the rotating shaft of the supporting member 131 is snapped into the rotating hole of the proximal chuck 12. At this time, the supporting member 131 can be opened and closed along the rotation axis to realize the supporting effect of the supporting member 131 on the valve, increase the supporting area of the valve, improve work efficiency, shorten the operation time, and play a role in supporting the apex of the heart and the valve. The role of protection.

In one embodiment, as shown in FIGS. 5-9 , the supporting member 131 includes a connecting body 1313 and a ring-shaped frame body. The frame body has a connecting end 1311 and a supporting end 1312 arranged away from each other. The end 1311 is rotatably connected to the proximal chuck 12 ; the connecting body 1313 is connected to the supporting end 1312 and extends toward the connecting end 1311 , and the extending end 1314 of the connecting body 1313 is hinged to the control end.

Specifically, the frame body in this embodiment is consistent with the structure of the frame body in the above-mentioned embodiment, and will not be repeated here; the connecting body 1313 is rod-shaped, and the connecting body 1313 is located in the middle area of the frame body, dividing the frame body into roughly symmetrical The connecting body 1313 and the frame jointly support the valve, and the outer surface of the proximal chuck 12 is also provided with a connecting groove 122 for accommodating the connecting body 1313 .

In this embodiment, the control end of the control member 132 is connected to the extension end 1314 of the connecting body 1313 , when the control member 132 is pulled away from the distal chuck 11 (towards the body), the control member 132 pulls the connecting body 1313 The extension end 1314 of the support member 131 rotates in the rotation hole, so that the support member 131 leaves the curved surface groove and the connecting groove 122, and the support member 131 is pushed up due to the elastic performance of the control member 132, and the support The supporting part 131 plays a supporting role; when the control part 132 is pushed in the direction close to the distal chuck 11 (direction away from the body), the supporting part 131 can be turned over to the side close to the body to receive the supporting part 131 The curved surface groove and the connecting groove 122 realize the folding of the supporting member 131 .

In one embodiment, as shown in FIGS. 10-13 , the supporting member 131 is rod-shaped, and the supporting member 131 has a connecting end 1311 and a supporting end 1312 opposite to the connecting end 1311; 1311 is rotatably connected with the proximal chuck 12; the control end is fixedly connected with the connection end 1311, or the control end is hinged with the support end 1312. Specifically, the support member 131 is a support rod, and the accommodation space 121 is opened in the proximal clamp. The strip-shaped groove on the outer surface of the head 12, the connecting end 1311 of the supporting member 131 is provided with a through hole, and a rotating shaft is pierced in the through hole, and the supporting member 131 is rotatably connected with the proximal chuck 12 through the rotating shaft.

Optionally, as shown in FIGS. 10-13 , the control end of the control member 132 is fixedly connected to the connection end 1311. When the control member 132 is pulled in a direction away from the distal chuck 11 (a direction close to the body), the control member 132 pulls Connecting end 1311, so that supporting member 131 leaves the strip groove, due to the elastic performance of control member 132, supporting member 131 is pulled up, and supporting member 131 plays a supporting role; When the control member 132 is pushed in the direction (direction away from the body), the supporting member 131 can be turned over to the side close to the body, and the supporting member 131 can be received in the strip groove to realize the folding of the supporting member 131.

Optionally, the control end of the control member 132 is hinged to the support end 1312 of the support member 131. When the control member 132 is pushed toward the direction close to the distal chuck 11 (direction away from the body), the support member 131 moves away from the body. One side of the body is overturned so that the supporting member 131 leaves the bar-shaped groove, and the supporting member 131 is pushed up due to the elastic performance of the control member 132, which plays a supporting role for the supporting member 131; 11 (the direction close to the body) pull the control piece 132, the control piece 132 pulls the connecting end 1311, the support piece 131 turns to the side close to the body, and then the support piece 131 can be received in the strip groove, realizing the support The folding of the holder 131 .

In one embodiment, as shown in FIG. 14 and FIG. 15 , the clamping device 10 further includes a clamping structure 14 that is movably connected to the distal chuck 11, the clamping structure 14 includes a clamping member 141 and a power member 142, and the clamping The holding part 141 is arranged close to the clamping space 15 , and the power part 142 is connected with the clamping part 141 to drive the clamping part 141 to switch between the accommodated state close to the distal chuck 11 and the expanded state where the valve is clamped together with the supporting part 131 .

Further, the outer surface of the distal chuck 11 is provided with a storage space for accommodating the clip 141 in the stored state, and the storage space is opened on the outer surface of the distal chuck 11 and is consistent with the curvature of the clip 141 Curved surface groove; wherein, in the storage state, the clamping piece 141 is accommodated in the accommodation space; in the expanded state, the clamping piece 141 protrudes outward from the distal chuck 11 and is arranged opposite to the supporting piece 131, so that it can be used for Clamp the valve together with the supporting member 131 ; the structure of the clamping member 141 can be consistent with that of the supporting member 131 , and the structure of the power member 142 can be consistent with that of the control member 132 .

Specifically, referring to FIG. 14 and FIG. 15 , the power element 142 is made of metal wire or polymer wire with toughness, and the power element 142 is made of elastic material. The power part 142 is in the shape of a wire or a wire, and the power part 142 can be threaded in the guide channel provided inside the distal chuck 11 and the proximal chuck 12; the clamping part 141 includes a ring-shaped clamping The supporting member 131 has a rotating end and a clamping end arranged away from each other. The supporting member 131 is rotatably connected with the proximal chuck 12 at the rotating end, and the driving end of the power member 142 extends from the end of the distal chuck 11 in the opposite direction. Extends and hinges with gripping end.

In this embodiment, when the power member 142 is pushed toward the direction close to the distal chuck 11 (the direction away from the body), the clamping part 141 turns over to the side close to the body, so that the clamping part 141 leaves the receiving space, because The elastic (toughness) performance of the power part 142 pushes up the clamping part 141 in reverse, and plays a role in abutting against the clamping part 141; when the power part 142 is pulled away from the distal clamp 11 (the direction close to the body), The power part 142 pulls the clamping end, and the clamping component 141 turns over to the side away from the body, so that the clamping component 141 can be received into the storage space, and the clamping component 141 can be folded.

In the clamping device 10, the clamping part 141 can be arranged opposite to the supporting part 131 at intervals, and the valve can be clamped between the clamping part 141 and the supporting part 131, thereby improving the support of the clamping device 10 to the valve And the clamping area can effectively ensure that the valve is within the capture range, ensuring the probability and effectiveness of clamping success, and there is no need to worry about readjusting when the capture position of the distal clamp 11 and the proximal clamp 12 is not ideal. problem, the supporting mechanism 13 can greatly improve the work efficiency and shorten the operation time; in addition, when the clamping device 10 is not in use, or in the process of the clamping device 10 entering the body from the outside of the body, the power part 142 can control the clamping part 141 to be accommodated in the receiving space without protruding outwards, so that when the clamping structure 14 passes through the apex of the heart, it is not easy to cause damage to the small wounds and valves of the apex of the heart, which in turn leads to a large amount of blood leakage. The clamping structure 14 can be opened after reaching the vicinity of the valve, and can be accommodated in the accommodation space, thereby protecting the apex of the heart and the valve.

The second purpose of the present application is to provide a valve repair system. Referring to FIG. 16 and FIG. 17, the valve repair system includes a handle control device 30 and the above-mentioned clamping device 10. Control the movement of the control part 132 , and then control the turning of the supporting part 131 , and the handle control device 30 is also connected with the power part 142 to control the movement of the power part 142 , and then control the turning of the clamping part 141 .

The valve repair system of the present application is mainly used in minimally invasive repair operations, such as the valve repair system through the apical approach, or the valve repair system through the femoral vein. When the clamping device 10 in the valve repair system captures the valve, it supports When the mechanism 13 is folded, the clamping device 10 enters the body from the outside of the body and moves to a position close to the valve. When the distal clamp 11 is close to the valve, the distal clamp 11 moves relative to the proximal clamp 12 to form a clamping Space 15, the supporting mechanism 13 can be opened at any time during the process of capturing the valve, and the supporting part 131 is controlled by the control part 132 to open to form a supporting surface. During the process of capturing the valve, the distal chuck 11 and the proximal chuck 12 The surface of the connection end 1311 and the supporting surface of the supporting member 131 abut against the valve together, which can increase the clamping and supporting area of the valve, limit the fluttering range of the valve, and make the valve easier to be captured; after the valve is captured, the valve Clamped in the clamping space 15 between the distal clamp 11 and the proximal clamp 12, the supporting member 131 can further support the valve outside the clamping space 15, making the state of the valve more stable, which is beneficial to Improve work efficiency, shorten operation time and improve operation success rate.

In one embodiment, as shown in FIG. 16 and FIG. 17 , the valve repair system further includes an extended guide member 20, and the guide member 20 is connected between the clamping device 10 and the handle control device 30, and the control member 132 passes through Connected to the guide 20.

In this embodiment, the guide member 20 adopts a tubular member, and the tubular member can be a round pipe body. The guide member 20 has a predetermined length. The feeder 20 can increase the distance between the clamping device 10 and the handle control device 30, so that the clamping device 10 can reach a predetermined surgical position.

The above are only preferred embodiments of the present application, and only specifically describe the technical principle of the present application. These descriptions are only for explaining the principle of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations here, any modifications, equivalent replacements and improvements made within the spirit and principles of the application, and those skilled in the art who can think of other specific implementation methods of the application without creative work are all It should be included within the scope of protection of this application.

Claims

A clamping device capable of capturing a valve, comprising:

proximal chuck;

The distal clamp is movably connected with the proximal clamp and can move close to the proximal clamp to clamp the valve, or move away from the proximal clamp to engage with the proximal clamp A clamping space is formed between the heads; and

The supporting mechanism includes a supporting part and a control part, and the supporting part is movably connected to the proximal chuck; the controlling part is connected with the supporting part to drive the supporting part close to the Switch between the folded state of the end clamp and the open state supporting the valve; the outer surface of the proximal clamp is provided with an accommodating space for accommodating the supporting member in the folded state; the accommodating space It is a groove consistent with the shape of the supporting member.
A clamping device according to claim 1, wherein the control member comprises a flexible filamentary member, the control member has a control end and an operating end far away from the control end, and the control end is connected to the control end. The supporting member is connected, and the operating end is used for inputting a driving force, so that the control member pushes or pulls the supporting member to switch between the folded state and the opened state.
A clamping device according to claim 2, wherein the control member is passed through the inside of the proximal clamp and can move in the proximal clamp, and the control end It can extend out to the outside of the proximal clip and be connected with the supporting member.
A clamping device according to claim 2, wherein the supporting member comprises a ring-shaped frame body, the supporting member has a connecting end and a supporting end arranged away from each other, and the supporting member The holder is rotatably connected to the proximal chuck at the connection end, and the support end is hinged to the control end.
A clamping device according to claim 2, wherein the supporting member comprises a connecting body and a ring-shaped frame body, and the frame body has a connecting end and a supporting end arranged away from each other, so The frame body is rotatably connected to the proximal chuck at the connecting end; the connecting body is connected to the supporting end and extends toward the connecting end, and the extending end of the connecting body is connected to the control end hinged.
A clamping device according to claim 2, characterized in that, the supporting member is rod-shaped, and the supporting member has a connecting end and a supporting end opposite to the connecting end; The bracket is rotatably connected to the proximal chuck at the connection end; the control end is fixedly connected to the connection end, or the control end is hinged to the support end.
A clamping device according to claim 1 or 2, characterized in that, the clamping device further comprises a clamping structure movably connected to the distal chuck, the clamping structure comprises a clamping piece and A power part, the clamping part is arranged close to the clamping space, and the power part is connected with the clamping part to drive the clamping part in a storage state close to the distal chuck and with the bearing The holders jointly clamp the switch of the expanded state of the valve.
A clamping device according to claim 7, characterized in that, an accommodating space for accommodating the clamping piece in the accommodating state is opened on the outer surface of the distal end clamp, and the accommodating space is the same as Consistently shaped grooves in the holder.
A clamping device according to any one of claims 1-6, wherein the clamping member comprises a ring-shaped clamping frame, and the clamping frame is rotatably connected to the distal chuck ; The power element is metal wire or polymer wire with toughness, and the power element is passed through the distal chuck and the proximal chuck.
A clamping device according to any one of claims 1-6, characterized in that a telescoping mechanism is provided between the distal joint and the proximal clamp, so that the distal clamp can Move relative to the proximal collet.
A clamping device according to any one of claims 1-6, characterized in that, both the distal chuck and the proximal chuck are cylindrical.
A clamping device according to any one of claims 1-6, characterized in that a positioning structure for positioning is provided between the distal clamp and the proximal clamp.
A clamping device according to any one of claims 1-6, characterized in that a buckle structure is provided between the distal clamp and the proximal clamp for making the distal The end collet and the proximal collet are secured.
A valve repair system, characterized in that it includes a handle control device and the clamping device according to any one of claims 1-13, the handle control device is connected with the control member to control the movement of the control member .
The valve repair system according to claim 14, further comprising an extended guide member, the guide member is connected between the clamping device and the handle control device, and the control device The piece is passed through the guide piece.