WO2021098414A1

WO2021098414A1 - Rotating mandrel assembly, manipulation handle, valve suturing device and valve suturing system

Info

Publication number: WO2021098414A1
Application number: PCT/CN2020/120854
Authority: WO
Inventors: 李阳; 黄广念; 张庭超
Original assignee: 杭州德晋医疗科技有限公司
Priority date: 2019-11-21
Filing date: 2020-10-14
Publication date: 2021-05-27

Abstract

Disclosed is a rotating mandrel assembly applicable to a valve suturing device. The valve suturing device comprises a rotating mandrel assembly (220), a sheath (233) and a plurality of elongated members (201, 230, 250, 260) passing through the sheath (223). The rotating mandrel assembly (220) comprises a rotating mandrel (221). A transition guide portion (2270) is provided at a distal end of the rotating mandrel (221), a distal end of the transition guide portion (2270) being adjacent to a proximal end of the sheath (233). The area of a cross section of the transition guide portion (2270) perpendicular to the axial direction thereof increases gradually from the distal end to the proximal end thereof. A plurality of channels (2211, 2212, 2214, 2215) are provided spaced apart from each other on an outer surface of the transition guide portion (2270) and extend from the proximal end to the distal end thereof. The plurality of channels (2211, 2212, 2214, 2215) respectively correspond to the plurality of elongated members (201, 230, 250, 260) which extend therethrough accordingly, such that the plurality of elongated members (201, 230, 250, 260) are gathered together at the distal end of the transition guide portion (2270) and are each separated from each other at the proximal end of the transition guide portion (2270). The rotating mandrel assembly (220) enables the plurality of elongated members (201, 230, 250, 260) to be conveniently arranged in a separated manner, thus reducing difficulties in processing and assembly. Also disclosed are a manipulation handle (21), a valve suturing device (20) and a valve suturing system (100) comprising the rotating mandrel assembly (220).

Description

Rotating mandrel assembly, control handle, valve suture device and valve suture system

Technical field

This application relates to the technical field of medical devices, and in particular to a rotating mandrel assembly, a control handle, a valve suture device, and a valve suture system.

Background technique

The tricuspid valve is a one-way valve between the right atrium and the right ventricle. Its anatomical structure includes the annulus, leaflets, chordae and papillary muscles. The leaflets are composed of anterior, posterior and septal valves. The annulus is three The attachment edges of the valve leaflets, and the free edges of each leaflet are connected to the papillary muscles by the chordae. The normal tricuspid valve can ensure blood circulation from the right atrium to the right ventricle. When the right ventricle contracts and squeezes the blood in the room, the tricuspid valve closes and the blood does not flow back into the right atrium, so the blood in the right ventricle flows from the pulmonary valve. Sent into the pulmonary artery.

Tricuspid regurgitation is caused by tricuspid regurgitation of the right ventricle blood flowing back to the right atrium during systole, and then into the superior and inferior vena cava, causing the right atrium to expand, increase the pressure, and increase the load on the right ventricle, which is easy to cause Heart failure.

The traditional treatment of tricuspid regurgitation is to repair or replace the valve through surgery, which can relieve the patient's symptoms and prolong their life. However, surgery has the disadvantages of large trauma, slow recovery, and high risk. In recent years, the treatment of tricuspid regurgitation through minimally invasive intervention has gradually become a research hotspot. The minimally invasive interventional valve repair device via catheter needs to be provided with a plurality of slender components that penetrate to the distal end of the device in a sheath with a very limited radial size, and the multiple slender components need to be installed on the control handle. By actuating the corresponding operating parts on the handle, the membrane repair device can perform various actions such as clamping the valve leaflets, puncturing the valve leaflets, pulling out sutures, and so on. How to effectively install and control the multiple components concentrated in the small-diameter sheath in the control handle and ensure the smooth movement of each component, while reducing the difficulty of processing and assembly, is a major technical problem for those skilled in the art. .

Application content

The technical problem to be solved by this application is to provide a rotating mandrel assembly that can easily diffusely install several elongated parts, does not hinder the movement of each elongated part, and can reduce the difficulty of processing and assembly in view of the defects of the prior art , Control handle, valve suture device and valve suture system.

In order to solve the above-mentioned technical problems, the present application provides a rotating mandrel assembly applied to a valve suture device. The valve suture device includes a sheath tube and a plurality of elongated pieces threaded in the sheath tube. The rotating mandrel assembly includes a rotating mandrel, the distal end of the rotating mandrel is provided with a transition guide, the distal end of the transition guide is adjacent to the proximal end of the sheath, and the transition guide is vertical The cross-sectional area in the axial direction gradually increases from the distal end to the proximal end, and the outer surface of the transition guide portion is provided with a plurality of channels spaced apart from each other and passing through the proximal end and the distal end of the transition guide portion for supplying respectively The plurality of elongated members are correspondingly inserted through, so that the plurality of elongated members are relatively gathered at the distal end of the transition guide part and relatively spread out at the proximal end of the transition guide part.

The present application also provides a control handle, including a housing, the rotating mandrel assembly, and several action control modules. The rotating mandrel assembly extends in the axial direction in the housing and has a distal end of the transition guide. The end extends out of the housing, the plurality of motion control modules are arranged on the housing, and the plurality of slender members are respectively connected to the corresponding motion control modules after being diffused by the transition guide portion of the rotating mandrel .

The present application also provides a valve suture device, including the control handle, the sheath fixedly connected to the distal end of the rotating mandrel module, and the plurality of elongated pieces threaded in the sheath .

The present application also provides a valve suture system, including the valve suture device and a clamp for fixing the control handle of the valve suture device.

The distal end of the rotating mandrel of the rotating mandrel assembly provided by the present application is provided with a transition guide part, and the cross-sectional area of the transition guide part perpendicular to the axial direction gradually increases from the distal end to the proximal end, and the outer part of the transition guide part The surface is provided with several channels spaced apart from each other and passing through the proximal end and the distal end of the transition guide portion, so as to provide for the corresponding penetration of the plurality of slender members, so that the plurality of slender members can be positioned at the far end of the transition guide portion. The ends are relatively gathered and relatively diffused at the proximal end of the transition guide portion, and the space between the diffused elongated pieces is increased, so that the plurality of elongated pieces are more convenient for installation and manipulation; The channels are isolated from each other, so that each of the elongated members can be independently controlled without interfering with each other, and each of the elongated members can move smoothly. The control handle, valve suture device, and valve suture system provided by the present application are provided with the rotating mandrel assembly, and the plurality of elongated pieces can be easily separated after being diffused by the transition guide portion of the rotating mandrel Connecting to the corresponding motion control modules on the control handle, due to the increased space between the plurality of elongated pieces that have been diffused, the size of each motion control module can be relatively large, thereby greatly reducing the difficulty of processing and assembling.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other obvious variants can be obtained based on these drawings.

Fig. 1 is a schematic diagram of the three-dimensional structure of the valve suture system of the present application.

Fig. 2 is a schematic diagram of the three-dimensional structure of the valve suture system of the present application after the valve suture device and the adjustable bend sheath are assembled

Fig. 3 is a schematic diagram of the three-dimensional structure of the valve suture device of the present application.

Fig. 4 is a three-dimensional exploded schematic view of the valve suture device of the present application from a viewing angle.

Fig. 5 is a three-dimensional exploded schematic view of the valve suture device of the present application from another perspective.

Fig. 6 is a schematic diagram of the three-dimensional structure of the chuck push tube, pin, probe, and guide wire separated from the rotating mandrel in the present application.

Fig. 7 is a three-dimensional schematic diagram of the guide wire, the chuck push tube, the pin, the probe, and the rotating mandrel in Fig. 6 after being assembled.

Fig. 8 is an enlarged view of the rotating mandrel in Fig. 6.

Fig. 9 is a schematic diagram of the three-dimensional structure of the rotating mandrel in Fig. 8 from another angle of view.

Fig. 10 is an enlarged view of part X in Fig. 8.

Fig. 11 is a three-dimensional structural diagram of the rotating operation mechanism of the rotating mandrel assembly and the distal end of the rotating mandrel in the present application.

Fig. 12 is a schematic cross-sectional view of the intra-sheath structure of the valve suture device of the present application.

FIG. 13 is a schematic diagram of the three-dimensional structure of the rotating operating mechanism and the rotating mandrel in FIG. 11 after being assembled.

Fig. 14 is a three-dimensional exploded schematic view of the valve suture device of the present application.

Fig. 15 is a cross-sectional view of the valve suture device in Fig. 4 along the line XV-XV.

16-17 are schematic diagrams of the use process of the chuck opening and closing control module on the control handle of the valve suture device of the present application.

Figures 18-19 are schematic diagrams of the use process of the probe movement control module on the control handle of the valve suture device of the present application.

20-22 are schematic diagrams of the use process of the pin lock and release control module on the control handle of the valve suture device of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In addition, the description of the following embodiments refers to the attached drawings to illustrate specific embodiments that can be implemented in the present application. The directional terms mentioned in this application, for example, "up", "down", "front", "rear", "left", "right", "inner", "outer", "side", etc., only It refers to the direction of the attached drawings. Therefore, the direction terms used are for better and clearer description and understanding of this application, rather than indicating or implying that the device or element referred to must have a specific orientation and a specific orientation. The structure and operation cannot therefore be understood as a limitation of this application.

Definition of orientation: For clarity of description, the end close to the operator during the operation is referred to as the "proximal end", and the end far away from the operator is referred to as the "distal"; the axial direction refers to the center and the proximal end of the distal end of the medical device. The direction of the connection between the terminal and the center; the above definition is only for the convenience of presentation, and cannot be understood as a limitation of this application.

Please refer to FIG. 1 and FIG. 2. The present application provides a valve suture system 100, which includes a valve suture device 20, an adjustable bending sheath 30 and a clamp 50.

Please refer to Figures 2 to 5 and Figures 14 and 15 at the same time. The valve suture device 20 includes a control handle 21, a chuck module 23, a sheath 233, a needle module 25, a probe 260, and a suture (not shown) Show). The control handle 21 includes a housing 210 and a rotating mandrel assembly 220. The rotating mandrel assembly 220 extends axially in the housing 210 and its distal end extends out of the housing 210. The sheath 233 is fixedly connected to the distal end of the rotating mandrel assembly 220 and extends in the axial direction. The chuck module 23 includes a proximal chuck 231 that is fixedly connected to the distal end of the sheath tube 233, a distal chuck 235 that can be opened and closed relative to the proximal chuck 231, and the distal chuck 235 is fixedly connected to and movably wears. The length of the chuck push tube 230 in the sheath tube 233 and the rotating mandrel assembly 220 is much longer than its outer diameter, and it is a slender piece. The pin module 25 includes a pin 250 movably installed in the sheath 233 and the rotating mandrel assembly 220. The length of the pin 250 is much greater than its diameter, and is a slender piece. The probe 260 is movably installed in the sheath tube 233 and the rotating mandrel assembly 220. The length of the probe 260 is much longer than its diameter, and it is an elongated piece. In this embodiment, the suture 2337 is movably installed in the chuck push tube 230, and the distal end of the suture 2337 is housed in the distal chuck 235. The proximal chuck 231 and the distal chuck 235 are relatively opened and closed for clamping or loosening the valve leaflets. The probe 260 can extend out of the proximal chuck 231 to detect whether the valve leaflet is effectively held by the chuck module 23. The needle 250 is used to puncture the valve and bring out the suture 2337 to implant the suture 2337 into the valve leaflet. In other embodiments, the suture 2337 may not be threaded in the chuck push tube 230, but a separate cavity or tube body for threading the suture is provided in the sheath tube 233.

The adjustable bending sheath 30 is sheathed outside the sheath tube 233 of the valve suture device 20, and the bending state of the sheath tube 233 is adjusted by the adjustable bending sheath 30 to adapt to the curved human body lumen structure.

The clamp 50 includes a base 501, a first support frame 502 and a second support frame 504 disposed at opposite ends of the base 501, and the housing 210 of the control handle 21 of the valve suture device 20 is fixed on the first support frame 502 , The handle (not marked) of the adjustable bend sheath 30 is fixed on the second support frame 504, and the operator does not need to hold the control handle 21 of the valve suture device 20 and the handle of the adjustable bend sheath 30 by hand, which saves effort and It is beneficial to the stability of the valve suture device 20 and the adjustable bending sheath 30.

Please refer to FIGS. 1, 3, 14, 15 and 16-22 at the same time. The control handle 21 also includes a chuck opening and closing control module 216 and a pin lock and release control module 217 arranged on the housing 210. And the probe movement control module 218. The distal and proximal ends of the chuck push tube 230 need to be connected to the distal chuck 235 and the chuck opening and closing control module 216 respectively; the proximal end of the pin 250 needs to be connected to the pin lock control module 217; the proximal end of the probe 260 Need to connect the probe movement control module 218. The chuck opening and closing control module 216 includes a chuck opening and closing operation member 2160, the pin lock and release control module 217 includes a pin lock and release operation member 2170, and the probe movement control module 218 includes a probe movement operation member 2180. The chuck opens and closes The operating member 2160, the pin locking and releasing operating member 2170, and the probe moving operating member 2180 are all disposed on the front side of the housing 210 facing the operator. The chuck opening and closing operating member 2160 is used to control the chuck push tube 230 to move in the axial direction, and the pin lock and release operating member 2170 is used to lock or release the pin module 25 to restrict or allow the pin 250 to move in the axial direction. The needle movement operating member 2180 is used to control the movement of the probe 260 in the axial direction.

As shown in Figure 5, Figure 6, Figure 7 and Figure 12, in this embodiment, the sheath tube 233 is centrally arranged with a chuck push tube 230, a pin 250, a probe 260, and a guide wire 201 extending in the axial direction. And other slender pieces. The sheath 23 needs to travel in the human blood vessel, and its inner diameter is very limited. Therefore, the space between the chuck push tube 230, the pin 250, the probe 260 and other elongated parts is relatively small. If the chuck is pushed straight into the tube 230, the pin 250, and the probe 260 are respectively connected to the chuck opening and closing control module 216, the pin lock and release control module 217, and the probe movement control module 218. Due to the small space between the elongated pieces, they are not It is easy to install and operate. The control and movement of each elongated member may interfere with each other. On the other hand, the chuck opening and closing control module 216, the pin lock control module 217, the probe movement control module 218, and even the entire control handle 21 are required Follow the design to a smaller size, increasing the difficulty of processing and assembly. The present application provides the rotating mandrel assembly 220 to solve this technical problem ingeniously.

As shown in Figure 4, Figure 5, Figure 6 to Figure 11, Figure 13 and Figure 14, the rotating mandrel assembly 220 includes a rotating mandrel 221, the distal end of the rotating mandrel 221 is provided with a transition guide 2210, the transition The distal end of the guide portion 2210 is adjacent to the proximal end of the sheath tube 233, the cross-sectional area perpendicular to the axial direction of the transition guide portion 2210 gradually increases from the distal end to the proximal end, and the outer surfaces of the transition guide portion 2210 are spaced apart from each other. Several channels passing through the proximal end and the distal end of the ferry guide 2210 are respectively provided for the chuck push tube 230, the pin 250, the probe 260 and other elongated members to correspondingly penetrate, so that the plurality of thin The long piece is relatively gathered at the distal end of the transition guide portion 2210 and relatively spreads at the proximal end of the transition guide portion 2210. The space between the plurality of slender members after being diffused by the transition guide 2210 is increased, so that the plurality of slender members is convenient to connect to the corresponding motion control module on the control handle 21, even when installed to the control Handle 21; each channel is isolated from each other, so that each of the slender pieces can be independently controlled without interfering with each other, and each of the slender pieces can move smoothly; at the same time, the size of each movement control module can be designed Is relatively large, which can greatly reduce the difficulty of processing and assembly.

Specifically, please refer to FIGS. 6 to 11 together. In this embodiment, the outer surface of the transition guide 2210 is provided with a chuck push tube channel 2212, a pin channel 2214, and a probe channel 2215 spaced apart from each other. Further, A through guide wire channel 2211 is axially provided inside the transition guide portion 2210. The guide wire 201 is movably inserted in the guide wire channel 2211, the chuck pushing tube 230 is movably inserted in the chuck pushing tube channel 2212, the pin 250 is movably inserted in the needle channel 2214, and the probe 260 is movably inserted in the probe channel 2215 Inside, the chuck push tube 230, the pin 250, and the probe 260 are relatively gathered at the distal end of the transition guide portion 2210, and are relatively diffused and isolated from each other at the proximal end of the transition guide portion 2210. The guide wire 201, the chuck The push tube 230, the pin 250, and the probe 260 can be independently controlled without interfering with each other, and the manipulation is convenient.

The rotating mandrel 221 also includes a shaft 2218 axially arranged at the proximal end of the transition guide portion 2210. The guide wire channel 2211, the chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 are all axially passed through the crossing guide. Section 2210 and shaft 2218.

Further, the transition guide portion 2210 includes a frustum whose diameter gradually increases from the distal end to the proximal end. In this embodiment, the frustum is a cone, the shaft 2218 is a cylinder, the axis of the frustum coincides with the axis of the shaft 2218, and the diameter of the proximal surface of the frustum is the same as the distal surface of the shaft 2218. The diameter is the same. The guide wire channel 2211, the chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 extend from the distal end of the transition guide 2210 to the proximal end of the shaft 2218.

In this embodiment, the guide wire channel 2211 preferably passes through the rotating mandrel 221 along the axis of the rotating mandrel 221, that is, the guide wire channel 2211 passes through the guide portion 2210 and the shaft 2218 along the axis of the rotating mandrel 221. The chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 correspond to the part of the shaft 2218 passing through the outer surface and/or the proximal surface of the shaft 2218. The chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 are distributed on the outer surface of the transition guide 2210 at intervals in the circumferential direction, and the chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 pass through the crossing. The distal end surface and the proximal end surface of the guiding portion 2210. Preferably, the chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215 are evenly arranged in the circumferential direction.

As shown in Figure 4, Figure 5, Figure 8 to Figure 10 and Figure 13, the chuck push tube channel 2212 includes a first distal guide groove 22121 opened on the outer surface of the transition guide part 2210, and a through shaft along the axial direction. The first central guide hole 22123 at the distal end of the rod 2218 and the first proximal guide groove 22125 communicated with the first central guide hole 22123 and penetrated through the outer surface and the proximal surface of the shaft 2218 in the axial direction, the chuck pushes The tube 230 is slidably received in the first distal guide groove 22121, the first middle guide hole 22123, and the first proximal guide groove 22125. The needle passage 2214 includes a second distal guide groove 22141 opened on the outer surface of the transition guide portion 2210, and a guide hole 22143 connected to the second distal guide groove 22141 and passing through the shaft 2218 in the axial direction. The needle 250 is slidably received in the second distal guide groove 22141 and the guide hole 22143. The probe channel 2215 includes a third distal guide groove 22151 opened on the outer surface of the transition guide portion 2210, a second middle guide communicating with the third distal guide groove 22151 and passing through the distal end of the shaft 2218 in the axial direction. Hole 22153, and a second proximal guide groove 22155 connected to the second middle guide hole 22153 and penetrated axially through the outer surface and proximal surface of the shaft 2218, the probe 260 is slidably received in the third distal guide In the guide groove 22151, the second middle guide hole 22153, and the second proximal guide groove 22155.

The distal end of the transition guide portion 2210 extends from a side of the guide wire channel 2211 to the distal end to extend out of a bracket 22101, and the bracket 22101 is used to carry the guide wire 201. Specifically, the bracket 22101 extends from the distal end of the transition guide portion 2210 away from the probe channel 2215 to the distal end, and the distal ends of the guide wire channel 2211 and the chuck push tube channel 2212 extend in the axial direction and penetrate through the bracket. The distal face of block 22101.

Preferably, two pins 250 and two probes 260 are provided in the valve suture device 20, and the outer surface of the transition guide 2210 is provided with two pin channels 2214 and two probes spaced apart from each other. Channel 2215, the two pin channels 2214 are symmetric with respect to the axis of the transition guide 2210, and the two probe channels 2215 are symmetric with the axis of the transition guide 2210.

Please refer to FIGS. 3 to 5 and FIGS. 11 and 13, the rotating mandrel assembly 220 further includes a rotating operating mechanism 223, and the rotating mandrel 221 is provided with a positioning ring circumferentially at the intersection of the transition guide portion 2210 and the shaft 2218 22103, the positioning ring 22103 is used to position the rotary operating mechanism 223. The rotating operating mechanism 223 includes a sealing shell 2232 sheathed in the transition guide portion 2210, a connecting tube 2234 sheathed in the sealing shell 2232, a rotating cover 2235 sheathed in the connecting tube 2234, and a shaft 2218 sheathed and positioned adjacently The fixed shell cover 2236 at the proximal end of the ring 22103, the sealed shell 2232 is fixedly connected to the transition guide portion 2210, and the inner surface of the sealed shell 2232 fits the outer surface of the transition guide portion 2210. The connecting cylinder 2234 is fixedly connected to the sealing shell 2232, the rotating cover 2235 is fixedly connected to the connecting cylinder 2234, and the fixed housing cover 2236 is connected to the proximal end of the sealing shell 2232 and abuts against the positioning ring 22103.

Specifically, the sealing shell 2232 includes a sealing cylinder 22321 and a connecting cylinder 22323 axially arranged at the proximal end of the sealing cylinder 22321. The sealing cylinder 22321 is in the shape of a cone and its inner peripheral surface is in contact with the outer surface of the transition guide 2210. , The distal end of the sealing cylinder 22321 is sealed to the proximal end of the sheath tube 233 by injecting glue or other means. The outer surface of the proximal end of the connecting cylinder 22323 is provided with external threads. A plurality of clamping rings 22324 are circumferentially provided on the outer surface of the connecting cylinder 22323 adjacent to the external thread, and a plurality of clamping grooves 22326 are formed on the plurality of clamping rings 22324 in the axial direction.

A number of protruding strips (not shown in the figure) are provided on the inner peripheral surface of the sealing shell 2232, and the plurality of protruding strips can respectively cover the first distal guide groove 22121, the second distal guide groove 22141 and the transition guide portion 2210. The third distal guide groove 22151 is provided so that each channel is closed in the circumferential direction corresponding to the transition guide portion 2210, so as to prevent the chuck push tube 230, the pin 250 and the probe 260 from leaving the first distal guide groove 22121, the second distal guide groove 22141, and the third distal guide groove 22151.

The sealing shell 2232 and the connecting cylinder 2234 are respectively provided with an axially extending positioning groove and a positioning bar that are adapted to each other; the connecting cylinder 2234 and the rotating cover 2235 are respectively provided with an axially extending positioning groove and a positioning bar that are adapted to each other Article.

The connecting barrel 2234 includes a distal end cone 22341 and a proximal barrel 22343 axially disposed on the distal end cone 22341. When the connecting cylinder 2234 is sleeved on the sealing shell 2232, the inner peripheral surface of the distal cone 22341 corresponds to the outer surface of the sealing cylinder 22321, and the inner peripheral surface of the proximal cylinder 22343 corresponds to the outer surface of the connecting cylinder 22323. The inner peripheral surface of the proximal cylinder 22343 is provided with a positioning bar 22346 corresponding to the clamping groove 22326 of the sealing shell 2232. The outer surface of the proximal cylinder 22343 is provided with a plurality of positioning grooves 22347, the plurality of positioning grooves 22347 are arranged along the circumferential direction of the proximal cylinder 22343, and each positioning groove 22347 extends in the axial direction.

The rotating cover 2235 is a cylindrical body. When the rotating cover 2235 is sleeved on the proximal cylinder 22343 of the connecting cylinder 2234, the inner peripheral surface of the rotating cover 2235 is attached to the outer surface of the proximal cylinder 22343. The inner peripheral surface of the rotating cover 2235 is provided with a plurality of positioning bars 22352 corresponding to the positioning groove 22347 of the connecting cylinder 2234, and the plurality of positioning bars 22352 are respectively clamped in the corresponding positioning grooves 22347 to realize the connection between the rotating cover 2235 and the connecting cylinder 2234. The outer surface of the rotating cover 2235 is circumferentially provided with a rotating guide groove 2231 at the proximal end, and the axis of the rotating guide groove 2231 coincides with the axis of the rotating cover 2235.

The fixed shell cover 2236 is a cylindrical body. The distal end of the inner peripheral surface of the fixed shell cover 2236 is provided with internal threads corresponding to the external threads of the sealing shell 2232. The diameter of the proximal port of the fixed shell cover 2236 is smaller than the outer diameter of the positioning ring 22103. So that the proximal end of the fixed shell cover 2236 can be stopped by the positioning ring 22103. The screwing of the internal and external threads means that the sealing shell 2232 is fixedly connected to the mandrel 221. Since the sealing shell 2232 and the connecting cylinder 2234, between the connecting cylinder 2234 and the rotating cover 2235 are connected to the positioning bar through the positioning grooves extending in the axial direction that are adapted to each other, rotating the rotating cover 2235 can drive the connecting cylinder 2234, The sealing shell 2232 and the rotating mandrel 221 rotate synchronously.

As shown in Figures 4, 5, 14, 15, and 16 to 19, the rotating mandrel assembly 220 further includes a first ring slidably sleeved on the shaft 2218 adjacent to the rotating operating mechanism 223 2256, the first ring 2256 can slide along the axial direction of the rotating mandrel 221. The outer wall of the first ring 2256 defines an annular first ring groove 22561 in the circumferential direction. The inner wall of the first ring 2256 is provided with a first lug 22563 slidably inserted into the first proximal guide groove 22125 of the chuck push tube channel 2212, and the proximal end of the chuck push tube 230 is fixedly connected to the first protrusion. Ear 22563, the first collar 2256 is connected to the chuck opening and closing control module 216 through the first ring groove 22561, so that the chuck push tube 230 inserted in the push tube channel 2212 is due to the transition guide The diffusion effect of the guiding part 2210 is conveniently connected to the chuck opening and closing control module 216 via the first collar 2256. When the chuck opening and closing operating member 2160 is operated to drive the first collar 2256 to slide along the shaft 2218, it can drive the chuck push tube 230 to move along the chuck push tube channel 2212, and the distal chuck 235 is clamped The head push tube 230 is driven to move distally away from the proximal chuck 231 to open or the distal chuck 235 is driven by the chuck push tube 230 to move proximally and close to the proximal chuck 231 to close.

As shown in Figures 4, 5, 14, 15, and 16 to 19, the rotating mandrel assembly 220 further includes at least one second collar 2257 slidingly sleeved on the shaft 2218, and the second The collar 2257 can slide along the axial direction of the rotating mandrel 221. The outer wall of the second collar 2257 is provided with an annular second ring groove 22571 around the circumference. The inner wall of the second collar 2257 is provided with a second lug 22573 slidably inserted into the second proximal guide groove 22155 of the probe channel 2215, and the proximal end of the probe 260 is fixedly connected to the second lug 22573. The second collar 2257 is connected to the probe movement control module 218 through the second ring groove 22571, so that the probe 260 inserted in the probe channel 2215 due to the diffusion effect of the transition guide 2210 , It is conveniently connected to the probe movement control module 218 via the second loop 2257. When the probe moving operating member 2180 is operated to drive the second collar 2257 to slide along the shaft 2218, the probe 260 can be driven to move along the probe channel 2215, so that the probe 260 extends or retracts the proximal end The chuck 231 is used to detect whether the valve leaflet is effectively clamped by the chuck module 23. In this embodiment, two probes 260 are provided, two second collars 2257 are correspondingly sleeved on the rotating mandrel 221, and the two probe channels 2215 respectively contain a probe 260 and a proximal end of the probe 260. Correspondingly, a second lug 22573 of a second collar 2257 is fixedly connected.

As shown in Figure 4, Figure 5, Figure 14, Figure 15, and Figure 20 to Figure 22, the rotating mandrel assembly 220 also includes a pin handle 251 slidably sleeved on the proximal end of the shaft 2218, the pin handle 251 can slide along the axial direction of the rotating mandrel 221. The proximal end of the pin 250 is fixedly connected to the pin handle 251. The outer wall of the distal end of the pin handle 251 is circumferentially provided with a positioning ring groove 2512, and the pin handle 251 is connected to the pin lock and release control module 217 through the positioning ring groove 2512, thereby being inserted into the pin channel 2214 The inner pin 250 is conveniently connected to the pin handle 251 due to the diffusion effect of the transition guide 2210, and is conveniently connected to the pin lock and release control via the positioning ring groove 2512 of the pin handle 251 Module 217. When the pin lock and release operating member 2170 is operated so that the pin lock and release control module 217 releases the pin handle 251, the pin handle 251 can be moved in the axial direction to drive the pin 250 to advance or withdraw, thereby puncturing The valve leaflet or the suture is pulled out; when the pin lock and release operating member 2170 is operated to make the pin lock and release control module 217 lock the pin handle 251, the pin 250 can be kept in the proximal chuck 231. In this embodiment, the number of pins 250 is two, and both pins 250 can be fixedly connected to the pin handle 251 through a locking member or directly.

Please refer to Figure 4 to Figure 10, Figure 12, and Figure 16, Figure 18, Figure 20, the chuck push tube 230, the pin 250 and the proximal end of the probe 260 pierced in the sheath 233 are concentrated The distal end of the transition guide 2210 is inserted into the chuck push tube channel 2212, the pin channel 2214, and the probe channel 2215, respectively. Specifically, the proximal end of the chuck push tube 230 sequentially passes through the first distal guide groove 22121 and the first middle guide hole 22123, extends to the first proximal guide groove 22125, and is fixedly connected to the first collar 2256; the proximal end of the pin 250 sequentially passes through the second distal guide groove 22141 and the guide hole 22143, extends out of the proximal surface of the shaft 2218 and is fixedly connected to the pin handle 251; the proximal end of the probe 260 It passes through the third distal guide groove 22151 and the second middle guide hole 22153 in sequence, extends into the second proximal guide groove 22155 and is fixedly connected to the second collar 2257. The sealing shell 2232 is sleeved on the transition guide 2210, the connecting cylinder 2234 is sleeved on the sealing shell 2232, the rotating cover 2235 is sleeved on the connecting cylinder 2234, and the fixed housing cover 2236 is sleeved on the shaft from the proximal end of the shaft 2218. On the rod 2218, the internal thread of the fixed shell cover 2236 is screwed to the external thread of the sealed shell 2232, and the fixed shell cover 2236 abuts against the positioning ring 22103, so that the rotating operating mechanism 223 is positioned on the rotating spindle 221. The proximal end of the guide wire 201 passes through the guide wire channel 2211.

3, 5, 14 and 16-22, the chuck opening and closing operating member 2160 is used to control the chuck push tube 230 to move in the axial direction, and the pin lock and release operating member 2170 is used to lock or release The pin handle 251 is used to restrict or allow the pin 250 to move in the axial direction, and the probe movement operating member 2180 is used to control the probe 260 to move in the axial direction. The chuck opening and closing operating member 2160, the pin locking and releasing operating member 2170, and the probe moving operating member 2180 are all located on the front of the housing 210, and the rotating mandrel assembly 220 is rotatably connected to the housing 210 and the chuck opening and closing control Module 216, pin lock and release control module 217 and probe movement control module 218, housing 210 and chuck opening and closing operating member 2160 on the front of housing 210, probe moving operating member 2180, and pin locking operating member 2170 It does not rotate with other components and always faces the operator. The operator can conveniently and quickly manipulate the chuck opening and closing operating member 2160, the probe moving operating member 2180, and the pin locking operating member 2170 to open and close the chuck respectively. The control module 216, the probe movement control module 218, and the pin lock and release control module 217 are used to drive the opening and closing of the chuck module 23, the extension or retraction of the probe 260, and lock or release the pin handle 251; and, When it is necessary to rotate the sheath 233 and the chuck module 23 to change the orientation of the opening of the chuck module 23 to clamp different valve leaflets, only the rotating mandrel assembly 220 can be rotated, without the need to rotate the control handle 21 The whole body and the valve suture device 20 are integral, and the operation is more convenient. It can be seen that the operation interface of the valve suture device 20 and its control handle 21 (the front of the housing 210 of the control handle 21 and the chuck opening and closing operation piece 2160, the probe moving operation piece 2180 and the pin lock and release operation piece 2170, can be Called the operation interface) is convenient and friendly for the operator.

Specifically, as shown in FIGS. 3 to 5 and 14 to 15, the housing 210 includes a first shell 211 and a second shell 213 that is aligned with the first shell 211. The surface of the first housing 211 facing away from the second housing 213 is the front 2110. The chuck opening and closing operating member 2160, the pin locking operating member 2170, and the probe moving operating member 2180 are all located on the front 2110. Preferably, the first housing 211 and the second housing 213 are buckled or bonded to form a tubular structure with open ends, and the rotating mandrel assembly 220 extends axially in the tubular structure. The chuck opening and closing control module 216 is provided at the distal end of the first housing 211, the pin lock and release control module 217 is provided at the proximal end of the first housing 211, and the probe movement control module 218 is provided at the first housing 211. Located between the chuck opening and closing control module 216 and the pin lock and release control module 217. The distal edge of the first shell 211 is circumferentially provided with a semi-circular arc-shaped first distal wall 2111, and the proximal edge of the first shell 211 is circumferentially provided with a semi-circular arc-shaped first proximal wall 2113; A semicircular arc-shaped second distal wall 2131 is circumferentially provided on the end edge, and a semicircular arc-shaped second proximal wall 2133 is circumferentially provided on the proximal edge of the second shell 213; when the first shell 211 and the second shell 213 are aligned Later, the first distal wall 2111 and the second distal wall 2131 constitute a circular end wall located at the distal end of the housing 210, and the first proximal wall 2113 and the second proximal wall 2133 constitute a circular end located at the proximal end of the housing 210. wall. The annular end wall of the distal end of the housing 210 is embedded in the rotation guide groove 2231 provided on the rotating cover 2235, and the annular end wall of the proximal end of the housing 210 is inserted into the rotation guide groove provided in the outer wall of the pin handle 251 in the circumferential direction. 2531, so that the rotating mandrel assembly 220 and the housing 210 form a rotational connection, and rotating the rotating operating mechanism 223 clockwise or counterclockwise relative to the housing 210 at any angle can drive the entire rotating mandrel assembly 220 rotates at any angle clockwise or counterclockwise.

As shown in Figure 1, Figure 3, Figure 4, Figure 14, Figure 15 to Figure 17, the chuck opening and closing control module 216 also includes a first connector 2161 rotatably connected to the first collar 2256 and connected to the chuck opening The first transmission assembly 2166 between the closing operation member 2160 and the first connecting member 2161, the first transmission assembly 2166 is used to convert the rotation of the chuck opening and closing operation member 2160 into the axial movement of the first connecting member 2161 to drive The first ring 2256 and the chuck push tube 230 move in the axial direction, thereby driving the chuck module 23 to clamp or loosen the valve leaflets.

Specifically, the first connecting member 2161 includes a first connecting piece 21611 rotatably connected to the first collar 2256. The first connecting piece 21611 faces the first collar 2256 with an arc-shaped opening 21612. The inner wall of the opening 21612 of the first connecting piece 21611 is inserted into the first ring groove 22561 of the first collar 2256, so that the first collar 2256 The connecting member 2161 is rotatably connected with the first collar 2256, so as to realize the rotatably connection between the rotating mandrel assembly 220 and the chuck opening and closing control module 216.

In this embodiment, the first transmission assembly 2166 includes a first bevel gear 21675 connected to the chuck opening and closing operating member 2160, a second bevel gear 21682 axially perpendicular to the first bevel gear 21675 and meshing with each other, and The screw rod 21684 of the second bevel gear 21682 is coaxially connected, and the screw rod 21684 is adapted to connect to the screw hole 21615 provided on the first connecting member 2161. The axial directions of the second bevel gear 21682 and the screw rod 21684 are parallel to Rotate the axial direction of the mandrel 221. Rotating the chuck opening and closing operating member 2160 can drive the rotation of the first bevel gear 21675, the second bevel gear 21682 and the screw 21684. The rotation of the screw 21684 drives the first connecting member 2161 to move axially. 2161 drives the first collar 2256 and the chuck push tube 230 to move axially.

Please refer to Figure 1, Figure 3, Figure 4, Figure 5, Figure 14, Figure 15, and Figure 20 to Figure 22, the pin control module 217 also includes a locking member 2171, disposed on the pin lock and release operating member 2170 and lock The pushing member 2174 between the members 2171 and the elastic member 2176 abutting between the pushing member 2174 and the housing 210 forcing the locking member 2171 to reset. The locking member 2171 is used to lock or loosen the pin handle 251, that is, the pin lock and release operating member 2170 pushes the pushing member 2174 to move the locking member 2171 to lock or loose the pin handle 251, and the elastic member 2176 is used to lock the pin 2171. Move and reset; when the locking member 2171 locks the pin handle 251, the locking member 2171 is rotationally connected with the pin handle 251, which realizes the rotational connection between the rotating mandrel assembly 220 and the pin control module 217.

Specifically, the locking member 2171 includes an abutting rod 2172 and at least one locking rod 2173 connected to the abutting rod 2172. The pushing member 2174 abuts against the abutting rod 2172, so that the at least one locking rod 2173 is far away from the abutting rod 2172. The pin handles 251 are locked or loosened.

Specifically, the opposite ends of the abutting rod 2172 are respectively provided with a locking rod 2173, and the end of each locking rod 2173 away from the abutting rod 2172 is provided with a locking block 2175, the elastic member 2176 pushes the locking block 2175, and the locking block 2175 can be inserted In the positioning ring groove 2512 of the pin handle 251, at this time, the pin handle 251 can be prevented from moving axially; by pressing the pin lock and release operating member 2170, the locking block 2175 is inserted into the positioning ring groove 2512 or separated from the positioning ring groove 2512, to lock or loosen the pin handle 251. The distance between the two locking rods 2173 is greater than the outer diameter of the positioning ring groove 2512 of the pin handle 251. When the positioning ring groove 2512 is completely located between the two locking rods 2173, the pin handle 251 can be placed between the two locking rods 2173. Rotation and axial movement between the two locking blocks 2175; the distance between the two locking blocks 2175 is smaller than the outer diameter of the positioning ring groove 2512, and the two locking blocks 2175 can be inserted into the positioning ring groove 2512; when the two locking blocks 2175 are inserted into the positioning ring groove When in 2512, the pin handle 251 cannot move along the axial direction, but can only rotate. The elastic member 2176 is disposed at an end of the locking rod 2173 away from the abutting rod 2172.

It can be understood that the structure of the pushing member 2174 and the pin locking operation member 2170 is similar to that of an automatic ballpoint pen. When the pin lock and release operating member 2170 is pressed down, the pushing member 2174 is pushed and moved down, driving the locking member 2171 to move down, the elastic member 2176 is squeezed by the locking member 2171 to be elastically deformed, and the locking block 2175 moves down to release the pair. The pin handle 251 is unlocked by positioning the limit of the ring groove 2512; when the pin locking and releasing operating member 2170 is not pressed or pressed again, the locking operating member 2170 is reset to the initial position, and the elastic member 2176 returns to the initial state and presses down. The push lock block 2175 moves up to be locked into the positioning ring groove 2512, the lock piece 2171 locks the pin handle 251, and the lock state is normal.

Please refer to FIG. 1, FIG. 3, FIG. 4, FIG. 5, FIG. 14, FIG. 15, FIG. 18, and FIG. 19. The probe movement control module 218 also includes a second connecting member 2182 rotatably connected with the second collar 2257 , And a second transmission assembly 2184 connected between the second connecting member 2182 and the probe moving operating member 2180. The second transmission assembly 2184 converts the movement of the probe moving operating member 2180 into the axial movement of the second connecting member 2182 to drive the second collar 2257 and the probe 260 to move in the axial direction. The second connecting member 2182 is embedded in the second ring groove 22571 of the second collar 2257, so that the second connecting member 2182 and the second collar 2257 are rotationally connected, that is, the rotation mandrel assembly 220 and the probe movement control are established Rotary connection of module 218. Operate the probe to move the operating member 2180 to control the second transmission assembly 2184 to drive the second collar 2257 to move in the axial direction, so that the probe 260 moves in the axial direction.

Specifically, the second transmission assembly 2184 includes a fixed frame 2185 fixed in the housing 210, a sliding member 2186 slidably arranged on the fixed frame 2185 in the axial direction, and a sliding member 2186 connected between the probe moving operating member 2180 and the sliding member 2186锁件2187。 Locking pieces 2187. Moving the probe movement operating member 2180 can drive the sliding member 2186 to slide in the axial direction, thereby driving the second connecting member 2182 to move in the axial direction, and the axial movement of the second connecting member 2182 can drive the second collar 2257 and the probe The needle 260 moves in the axial direction. The locking member 2187 can be locked with the housing 210. When the probe moving operating member 2180 is pressed, the locking member 2187 can be disengaged from the lock of the housing 210, and then moving the probe moving operating member 2180 can drive the second connecting member 2182 Move; when the proximal limit position of the probe movement operating member 2180 is moved to the proximal end, the locking member 2187 is locked with the housing 210 again, so that the distal end of the probe 260 remains retracted in the proximal chuck 231 to prevent unnecessary When the distal end of the probe 260 extends out of the proximal chuck 231, the probe movement operating member 2180 is moved by mistake.

Specifically, the side of the second connecting member 2182 facing the second collar 2257 defines an arc-shaped opening 21820, and the inner wall of the opening 21820 of the second connecting member 2182 can be rotatably received in the corresponding second collar 2257. Inside the ring groove 22571.

Please refer to Figure 5, Figure 14, Figure 16 and Figure 17 together, when the chuck opening and closing control module 216 is used to control the chuck module 23, the chuck opening and closing control module 216 cooperates with the chuck module 23 to control together Opening or closing of the distal chuck 235. The rotating chuck opening and closing operating member 2160 can drive the first bevel gear 21675 to rotate. The first bevel gear 21675 drives the screw 21684 to rotate through the second bevel gear 21682. The rotation of the screw 21684 drives the first connecting piece 21611 to move in the axial direction. , The first connecting piece 21611 drives the first collar 2256 and the chuck push tube 230 connected to the first collar 2256 to move along the axial direction, so that the distal chuck 235 is moved away from or close to the proximal chuck 231 to realize the distance The opening or closing between the end clamp 235 and the proximal clamp 231.

Please refer to Figure 5, Figure 14, Figure 18 and Figure 19 together. In the initial state, the locking member 2187 in the probe movement control module 218 is buckled on the first housing 211, and the probe movement operating member 2180 is located at the proximal limit position At this point, the distal end of the probe 260 is retracted into the proximal chuck 231. When the probe moving operating member 2180 is pressed to disengage the locking member 2187 from the buckle of the first housing 211, pushing the probe moving operating member 2180 distally can drive the second connecting member 2182 to move distally in the axial direction. The two connecting members 2182 drive the corresponding second collar 2257 to move distally along the axial direction of the rotating mandrel 221, so that the probe 260 moves distally along the axial direction, so that the distal end of the probe 260 extends out of the proximal chuck 231 to detect whether the leaflet is effectively clamped by the chuck module 23. Conversely, when the probe moving operating member 2180 is pulled toward the proximal end, the probe 260 is driven to move toward the proximal end until the locking member 2187 is locked to the first housing 211 again. At this time, the distal end of the probe 260 is retracted. Return to the proximal chuck 231.

Please refer to FIG. 5, FIG. 14, FIG. 20 to FIG. 22 together, the pin lock and release control module 217 cooperates with the pin handle 251 to control the forward or backward of the pin 250. The pin handle 251 moves in the axial direction to drive the pin 250 to move in the axial direction, and the pin lock and release control module 217 is used to lock or unlock the pin handle 251. When the pin lock and release control module 217 is in the initial position, the locking block 2175 is inserted into the positioning ring groove 2512 of the pin handle 251 to prohibit the pin handle 251 from moving in the axial direction. At this time, the pin lock and release control module 217 is locked status. When the pin lock and release operating member 2170 is pressed to move the pushing member 2174 downward, the pushing member 2174 pushes the locking member 2171 and moves downward until the locking block 2175 escapes from the positioning ring groove 2512 of the pin handle 251, and the elastic member 2176 is compressed Elastic contraction. At this time, the pin lock and release control module 217 is in the unlocked state, and the pin handle 251 can move in the axial direction to drive the pin 250 to move in the axial direction, thereby pushing or retracting the pin to puncture the valve leaflet. Connect the suture or bring out the suture. Press the pin lock and release operating member 2170 again, the elastic member 2176 is elastically reset to push the locking member 2171, the pushing member 2174, and the pin lock and release operating member 2170 to reset, and the locking block 2175 is inserted into the positioning ring groove 2512 of the pin handle 251 again. Lock the pin handle.

Take the treatment of the tricuspid valve as an example to illustrate the use process of the valve suture system 100 of the present application: the chuck module 23 and sheath 233 of the valve suture device 20 enter the right atrium through the femoral vein and the inferior vena cava, and pass through the clamp The head opening and closing operating member 2160 controls the distal chuck 235 to be opened relative to the proximal chuck 231, and if necessary, the adjustable bending sheath 30 adjusts the bending degree of the distal end of the sheath tube 233 and/or rotates the rotating operating mechanism 223 The chuck module 23 makes the opening direction of the chuck module 23 face the valve leaflet to be clamped, and then controls the distal chuck 235 to close relative to the proximal chuck 231 through the chuck opening and closing operating member 2160 to clamp the valve ; Then press the probe to move the operating member 2180, the probe 260 detects whether the valve is successfully clamped, if the clamping is successful, press the pin lock and release operating member 2170 to release the locking member 2171 from the pin handle 251, Then use the needle handle 251 to control the needle 250 to puncture the valve in sequence, pull out the suture, and drive the suture through the valve. Later, you can choose to fix the suture to the ventricular wall or papillary muscle to achieve the effect of chordal repair. Choose to lock multiple sutures implanted in different valves together to achieve the effect of edge-to-edge repair.

The chuck module 23 and the distal end of the sheath 233 of the valve suture device 100 of the present application can also pass through the fossa ovale into the left atrium and ventricle to perform mitral valve repair.

The above is the implementation of the embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiments of the present application, several improvements and modifications can be made, and these improvements and modifications are also Treated as the scope of protection of this application.

Claims

A rotating mandrel assembly, which is characterized in that it is applied to a valve suture device. The valve suture device includes a sheath tube and a plurality of slender pieces threaded in the sheath tube. The rotating mandrel assembly includes a rotary A mandrel, the distal end of the rotating mandrel is provided with a transition guide portion, the distal end of the transition guide portion is adjacent to the proximal end of the sheath, and the cross-sectional area of the transition guide portion perpendicular to the axial direction Gradually increasing from the distal end to the proximal end, the outer surface of the transition guide portion is provided with a plurality of channels spaced apart from each other and passing through the proximal end and the distal end of the transition guide portion to provide the plurality of elongated channels respectively. The pieces are correspondingly inserted, so that the plurality of elongate pieces are relatively gathered at the distal end of the transition guide part and relatively spread at the proximal end of the transition guide part.
The rotating mandrel assembly according to claim 1, wherein the transition guide portion comprises a frustum, and the diameter of the frustum gradually increases from the distal end to the proximal end.
The rotating mandrel assembly according to claim 1 or 2, wherein the plurality of elongated pieces include a chuck push tube, a pin, and a probe, and the plurality of channels include a chuck push tube channel, and a probe. A needle channel and a probe channel, the chuck push tube is inserted into the chuck push tube channel, the pin is inserted into the needle channel, and the probe is inserted into the probe channel.
The rotating mandrel assembly according to claim 3, wherein the number of the pins and the pin channels are both two, the number of the probes and the probe channels are both two, and the two pins The needle channel is symmetrical about the axis of the rotating mandrel, and the two probe channels are symmetrical about the axis of the rotating mandrel.
The rotating mandrel assembly according to claim 3, wherein the rotating mandrel further comprises a shaft extending in the axial direction from the proximal end of the transition guide part, the chuck push tube channel, the insert Both the needle channel and the probe channel pass through the shaft axially.
The rotating mandrel assembly according to claim 5, wherein a guide wire channel is further provided inside the rotating mandrel, and the guide wire channel axially penetrates the transition guide portion and the shaft, so The guide wire channel is for the guide wire to pass through.
The rotating mandrel assembly according to claim 5, wherein the part of the chuck push tube channel, the probe channel, and the pin channel corresponding to the shaft passes through the outer part of the shaft. Surface and/or proximal surface.
The rotating mandrel assembly according to claim 7, wherein the rotating mandrel assembly further comprises a first collar, a second collar and a pin handle that are slidably sleeved on the shaft, the The first collar is fixedly connected to the proximal end of the chuck push tube to drive the chuck push tube to move in the axial direction through the axial sliding of the first collar, and the second collar is fixedly connected to the probe The proximal end of the needle drives the probe to move in the axial direction through the axial sliding of the second collar, and the pin handle is fixedly connected to the proximal end of the pin to pass through the shaft of the pin handle. The sliding direction drives the pin to move in the axial direction.
The rotating mandrel assembly according to claim 8, wherein the first collar is provided with a lug extending into the channel of the chuck push tube, and the proximal end of the chuck push tube is fixedly connected The lug of the first loop; the second loop is provided with a lug extending into the probe channel, and the proximal end of the probe is fixedly connected to the lug of the second loop ; The pin handle is sleeved at the proximal end of the shaft.
The rotating mandrel assembly according to claim 6, wherein the distal end of the transition guide portion extends out of a bracket block on one side of the guide wire channel, and the bracket block is used to support the guide wire. wire.
The rotating mandrel assembly according to claim 1, wherein the rotating mandrel assembly further comprises a rotating operating mechanism fixedly connected to the distal end of the rotating mandrel, and the rotation of the rotating operating mechanism drives the The rotating mandrel rotates.
The rotating mandrel assembly according to claim 11, wherein the rotating operating mechanism comprises a sealing shell sleeved on the transition guide portion, a connecting cylinder sleeved on the sealing shell, and a sleeve A rotating cover provided on the connecting cylinder, the sealing shell is fixedly connected to the transition guide part, and the inner surface of the sealing shell is attached to the outer surface of the transition guide part, and the connecting cylinder is fixed Connected to the sealing shell, and the rotating cover is fixedly connected to the connecting cylinder.
The rotating mandrel assembly according to claim 12, wherein a plurality of protruding strips are provided on the inner peripheral surface of the sealing shell, and the plurality of protruding strips are respectively covered on each of the channels of the transition guide portion, So that each of the channels is closed in the circumferential direction.
The rotating mandrel assembly according to claim 12, wherein the sealing shell and the connecting cylinder are respectively provided with positioning grooves and positioning bars extending in the axial direction that are adapted to each other; the connecting cylinder and the connecting cylinder are respectively provided with positioning grooves and positioning bars extending axially. The rotating cover is respectively provided with positioning grooves and positioning bars extending in the axial direction that are adapted to each other.
A control handle, characterized in that it comprises a housing, the rotating mandrel assembly according to any one of claims 1-14, and a plurality of action control modules, the rotating mandrel assembly being axially along the inside of the housing Extend and the distal end of the transition guide part extends out of the housing, the plurality of motion control modules are arranged on the housing, and the plurality of elongated pieces are guided by the transition of the rotating mandrel After the parts are diffused, they are connected to the corresponding action control modules.
The control handle according to claim 15, wherein each of the motion control modules includes an operating member, and each of the operating members is located on the front side of the housing facing the operator; the rotating mandrel assembly The casing and each of the motion control modules are rotatably connected, so that the rotating mandrel module can rotate at any angle relative to the casing and each of the motion control modules, and each of the operating parts always faces the operator.
The control handle according to claim 16, wherein the plurality of motion control modules include a chuck opening and closing control module, a pin lock and release control module, and a probe movement control module, the chuck opening and closing control module It includes a chuck opening and closing operating member, the pin lock and release control module includes a pin lock and release operating member, and the probe movement control module includes a probe movement operating member, which actuates different operating members to control different The action of the elongated piece.
A valve suture device, characterized by comprising the control handle according to any one of claims 15-17, the sheath fixedly connected to the distal end of the rotating mandrel assembly, and the sheath fitted in the sheath. The several elongated pieces inside the tube.
A valve suture system, characterized by comprising the valve suture device according to claim 18 and a clamp for fixing the control handle of the valve suture device.
The valve suture system of claim 19, further comprising an adjustable bend sheath, the adjustable bend sheath is sheathed outside the sheath of the valve suture device for adjusting the sheath The bending state.