Suturing component and valve ring suturing and ring shrinking device

Abstract

The invention discloses a suturing component and a valve ring suturing and contracting device. A suturing component comprises a clamping arm assembly, two pull rope assemblies and two puncture needles, the clamping arm assembly is used for clamping a valve ring, the two pull rope assemblies are connected with the clamping arm assembly, each pull rope assembly comprises a sleeve and a pull rope, one end of each sleeve is connected with the corresponding clamping arm assembly, the other end of each sleeve is connected with the corresponding pull rope, and the two puncture needles are connected with the clamping arm assembly. The two puncture needles are used for being connected with the two ends of the suture line, puncture the valve ring and correspond to the two pull rope assemblies one to one; the two puncture needles puncture the valve ring and are correspondingly connected with the sleeves of the two pull rope assemblies to form a puncture state, and in the puncture state, the two pull rope assemblies pull out the two puncture needles and the suture line in the puncture direction. A group of point positions can be finished at one time by double needle withdrawing, secondary puncture is not needed, the operation is simple, and the efficiency is high; the pulling-out directions of the threading needle and the suture line completely conform to the puncture direction, and the valve ring can be prevented from being torn.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a suture component and an annulus suture constriction device. Background Art

[0002] In some patients, whether due to genetic malformation, disease or injury, the mitral valve of the heart cannot close properly, resulting in a condition called regurgitation, i.e., blood is pumped into the atrium every time the myocardium contracts; regurgitation is a serious and often rapidly deteriorating condition that reduces circulatory efficiency and must be corrected; the more common methods of repairing the damaged mitral valve function are valve replacement or valve repair through surgical operations, and these operations are highly invasive because an opening in the patient's chest is required to access the heart and extracorporeal circulation of blood is needed. Mitral regurgitation patients are often relatively fragile, thus increasing the risk of the operation. Summary of the Invention

[0003] To solve at least one problem existing in the prior art, the present invention provides a suture component and an annulus suture constriction device.

[0004] A suture component includes a clamping arm assembly, two drawstring assemblies and two puncture needles. The clamping arm assembly is used for clamping the annulus. The two drawstring assemblies are connected to the clamping arm assembly. Each drawstring assembly includes a sleeve and a drawstring. One end of the sleeve is connected to the clamping arm assembly and the other end is connected to the drawstring. The two puncture needles are connected to the clamping arm assembly. The two puncture needles are used for connecting the two ends of a suture. The two puncture needles puncture the annulus, and the two puncture needles correspond to the two drawstring assemblies one by one; the two puncture needles puncture the annulus and are correspondingly connected to the sleeves of the two drawstring assemblies to form a puncture state. In the puncture state, the two drawstring assemblies pull out the two puncture needles and the suture along the puncture direction.

[0005] In some embodiments, the suture component further includes a main body member which is rotatably connected to the clamping arm assembly; the clamping arm assembly includes a lower clamping arm, a first clamping arm and a second clamping arm. The lower clamping arm, the first clamping arm and the second clamping arm are respectively rotatably connected to the main body member. The first clamping arm and the second clamping arm are mirror images of each other. The annulus is clamped between the lower clamping arm, the first clamping arm and the second clamping arm; the lower clamping arm, the first clamping arm and the second clamping arm are embedded in the main body member and are in fit with it.

[0006] Wherein, the rotation axes of the first clamping arm and the second clamping arm form a certain angle with each other. When expanded to the limit angle, along the extension direction of the first clamping arm and the second clamping arm, the distance between the two gradually increases.

[0007] In some embodiments, conical holes one are formed at one ends of the first clamping arm and the second clamping arm away from the main body member, two needle outlet holes are formed at one end of the lower clamping arm away from the main body member, the puncture needle passes through the needle outlet holes, and the diameter of the conical hole one on the side close to the needle outlet hole is larger than that on the other side.

[0008] Wherein, when the first clamping arm, the second clamping arm and the lower clamping arm are unfolded to the limit angle, the two needle outlet holes are coaxially corresponding to the two conical holes one.

[0009] In some embodiments, the first clamping arm further includes a clamping member, the clamping member is fixed to one end of the first clamping arm away from the main body member, and the clamping member is connected to the sleeve;

[0010] Wherein, a slit and a conical hole two are formed in the middle of the clamping member, the conical hole two is coaxially corresponding to the conical hole one, and the pull rope assembly is clamped in the slit.

[0011] In some embodiments, the lower clamping arm is provided with a gasket groove and a suture channel one, the gasket groove is close to the main body member and is used for placing a gasket, and the gasket groove is communicated with the suture channel one; a suture channel two is formed inside the main body member, and the suture channel two is communicated with the suture channel one;

[0012] Wherein, the suture is threaded through the suture channel two, the suture channel one and the inside of the gasket groove, and two ends of the suture pass through the gasket and are connected to the puncture needle.

[0013] In some embodiments, the suture component further includes a puncture assembly, the puncture assembly includes the puncture needle and a flexible tube, the puncture needle is connected to the flexible tube, and the puncture needle and the flexible tube are threaded through the inside of the first clamping arm;

[0014] Wherein, a clamping groove is formed in the middle of the puncture needle, a first elastic piece is arranged inside the sleeve, and in the puncture state, the clamping end is clamped with the first elastic piece.

[0015] In some embodiments, a limiting portion is arranged in the middle of the puncture needle, and the flexible tube abuts against the limiting portion.

[0016] In some embodiments, the flexible tube includes a clamping end and a bending portion, the clamping end is connected to the puncture needle, and the bending portion is adjacent to the clamping end.

[0017] A mitral annulus suture and constriction device includes a handle member, a connecting tube and a suture component, one end of the connecting tube is connected to the handle member, and the other end is connected to the suture component.

[0018] In some embodiments, a channel corresponding to and communicating with the internal channel of the suture component is provided inside the connecting tube. The puncture assembly, the suture thread, and the pull cord assembly are disposed inside the channels of the connecting tube and the suture component. A control wire assembly is further provided inside the connecting tube, and the control wire assembly is respectively connected to the clamp arm assembly and the handle component.

[0019] Compared with the prior art, the suture component provided by the present invention has the following beneficial effects: The suture component is a passive instrument, and the needle is ejected mechanically. The puncture hole generated after the puncture needle punctures the valve annulus is small, and no other catheters or instruments need to be inserted subsequently, resulting in less damage to the valve annulus. The double needles can complete a set of points at one time, eliminating the need for secondary puncture, with simple operation and high efficiency.

[0020] The suture component uses a pull cord to pull the suture thread out of the body, making the pulling direction of the wire-passing needle and the suture thread completely conform to the puncture direction, which can prevent the valve annulus from tearing. The puncture needle is pulled out by connecting a sleeve to the puncture needle passing through the valve annulus, and then the sleeve, the puncture needle, and the suture thread connected to the puncture needle are pulled out by the pull cord, without the assistance of other components, with simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of an embodiment provided by the present application;

[0022] Figure 2 is an expanded structural schematic diagram of an embodiment of the suture component provided by the present application;

[0023] Figure 3 is Figure 2 a magnified schematic diagram of the structure at D in

[0024] Figure 4 is a contracted structural schematic diagram of an embodiment of the suture component provided by the present application;

[0025] Figure 5 is a cross-sectional structural schematic diagram of an embodiment provided by the present application;

[0026] Figure 6 is Figure 5 a magnified schematic diagram of the structure at A in

[0027] Figure 7 is a cross-sectional structural schematic diagram of an embodiment provided by the present application in another state;

[0028] Figure 8 is Figure 7 a magnified schematic diagram of the structure at E in

[0029] Figure 9 is a schematic diagram of the connecting tube structure provided by the present application;

[0030] Figure 10 It is a schematic diagram of the lower clamping arm structure provided by this application;

[0031] Figure 11 It is a schematic diagram of the cross-sectional structure of another embodiment provided by this application;

[0032] Figure 12 It is a schematic diagram of the cross-sectional structure of another two embodiments provided by this application;

[0033] Figure 13 It is the cross-sectional structure of the clamping device provided by this application;

[0034] Figure 14 It is a schematic diagram of the flexible tube structure provided by this application;

[0035] Figure 15 It is a schematic diagram of the puncture assembly structure provided by this application.

[0036] 100. Handle component; 200. Connecting tube; 21. First control wire channel; 22. Second control wire channel; 23. Pull cord channel; 24. Suture channel; 25. Connecting groove; 251. Through hole; 26. Puncture needle channel; 300. Suture component; 31. Main body part; 311. Head end; 314. Second suture channel; 315. First pull cord channel; 316. Third control wire channel; 317. First puncture channel; 318. Fourth control wire channel; 32. Lower clamping arm; 321. Gasket groove; 322. First suture channel; 323. Second puncture channel; 3231. Bulging part; 326. Needle exit hole; 33. First clamping arm; 331. Clamping part; 3311. Slit; 3312. Second tapered hole; 3313. Inclined surface; 332. Placement part; 3321. Positioning groove; 333. First tapered hole; 335. Elastic part; 3351. Third tapered hole; 3352. First positioning ring; 3353. Head end; 336. Clamping device; 3361. Elastic sleeve; 3362. Base; 337. Second pull cord channel; 338. Restricting part; 34. Pull cord assembly; 341. Pull cord; 342. Sleeve; 3421. First elastic piece; 35. Puncture assembly; 351. Puncture needle; 3511. Needle tip; 3512. Card slot; 3513. Clamping part; 3514. Limiting part; 3515. Slot; 352. Flexible tube; 3521. Clamping end; 3522. Bending part; 01. Suture; 02. Gasket; 03. Short slit; 04. Long slit; 05. Second elastic piece; 06. Second positioning ring; 07. Annular groove; 08. Fifth tapered hole; 09. Third elastic piece; 10. Round hole. Detailed implementation manners

[0037] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] As Figure 2 、 Figure 3 shown, an embodiment of the present application provides a suture component. The suture component 300 includes a clamping arm assembly, two drawstring assemblies 34, and two puncture needles 351. The clamping arm assembly is used to clamp the valve annulus 400. The two drawstring assemblies 34 and the two puncture needles 351 are respectively connected to the clamping arm assembly, and the two puncture needles 351 correspond to the two drawstring assemblies 34 one by one. The drawstring assembly 34 includes a sleeve 342 and a drawstring 341. One end of the sleeve 342 is connected to the clamping arm assembly, and the other end is connected to the drawstring 341. After the puncture needle 351 passes through the valve annulus 400, in the puncture state, it is connected to the sleeve 342 of the drawstring assembly 34, and then the drawstring 341 is pulled, so that the puncture needle 351 is pulled out along the puncture direction with the drawstring assembly 34.

[0044] It should be noted that two puncture needles 351 are used to connect the two ends of the suture 01. The two puncture needles penetrate the valve annulus 400 so that the two ends of the suture 01 pass through the valve annulus 400, and the valve annulus 400 is sutured and fixed; in the puncture state, the two pull cord assemblies 34 are pulled along the puncture direction to pull out the two puncture needles 351 and the suture 01, so as to set a group of suture fixation points on the valve annulus 400.

[0045] In this application, the two puncture needles 351 can form two puncture holes required for a group of points on the valve annulus 400 at one time, and there is no need to retract the needles after puncture (retracting the needles means the process of pulling out the puncture needles 351 again after puncture), which will not cause secondary damage to the valve annulus 400 and at the same time reduces the steps and difficulty of the puncture operation. After puncture, the puncture needles 351 are connected to the sleeve 342 along the puncture direction, and then the puncture needles 351 and the ends of the suture 01 connected to the puncture needles 351 are pulled out along the puncture direction through the pull cord 341. The pulling direction is basically the same as the puncture direction, avoiding the friction between the puncture needles 351 and the suture 01 and the side surface of the puncture holes of the valve annulus 400, effectively preventing the valve annulus 400 from tearing and reducing the damage to the valve annulus 400 during the puncture process.

[0046] The technical details of each component will be introduced one by one below.

[0047] In some embodiments, as Figure 2 , Figure 4 shown, the suture component further includes a main body member 31, and the main body member 31 is rotatably connected to the clamp arm assembly; the clamp arm assembly includes a lower clamp arm 32, a first clamp arm 33 and a second clamp arm 36. The lower clamp arm 32, the first clamp arm 33 and the second clamp arm 36 are respectively rotatably connected to the main body member 31. The first clamp arm 33 and the second clamp arm 36 are mirror images of each other, and the valve annulus 400 is clamped between the lower clamp arm 32 and the first clamp arm 33 and the second clamp arm 36; the lower clamp arm 32, the first clamp arm 33 and the second clamp arm 36 are embedded in the main body member 31 and fit with it. Among them, the rotation axes of the first clamp arm 33 and the second clamp arm 36 form a certain angle with each other. When expanded to the limit angle, along the extension direction of the first clamp arm 33 and the second clamp arm 36, the distance between the two gradually increases. In this way, the opening distance between the first clamp arm 33 and the second clamp arm 36 can be increased, and further the distance between the two puncture holes can be enlarged, which can prevent the phenomenon that the two puncture holes are combined when performing circumferential constriction due to the too close distance between the puncture holes, resulting in the tearing of the valve annulus 400. The risk of tearing of the valve annulus 400 is reduced.

[0048] Specifically, the main body member 31 is the main part of the suture member 300. The lower clamping arm 32, the first clamping arm 33, and the second clamping arm 36 are components that cooperate with each other to clamp and fix the valve annulus 400. All three of them are rotatably connected and embedded and fitted in the middle of the main body member 31. The main body member 31 further includes a head end 311. The head end 311 is the end where the suture member enters the human body, and its top is smooth and round. After the lower clamping arm 32, the first clamping arm 33, and the second clamping arm 36 are embedded and fitted on one side of the main body member 31, the overall outer diameter of the suture member 300 is basically the same as the outer diameter of the head end 311, which facilitates the entry of the suture member 300 into the human body and reduces damage to human tissues at the same time.

[0049] In some embodiments, as Figure 5 , Figure 6 shown, at one end of the first clamping arm 33 and the second clamping arm 36 away from the main body member 31, a first tapered hole 333 is provided. At one end of the lower clamping arm 32 away from the main body member 31, two needle outlet holes 326 are provided. The puncture needles 351 pass through the needle outlet holes 326. The diameter of the first tapered hole 333 on the side close to the needle outlet hole 326 is larger than that on the other side. Among them, the first tapered hole 333 is a conical hole, and the needle outlet hole 326 is the hole through which the puncture needle 351 on the lower clamping arm 32 passes through. The second clamping arm 36 and the first clamping arm 36 are mirror images of each other with respect to the lower clamping arm 32. When the first clamping arm 33, the second clamping arm 36, and the lower clamping arm 32 are expanded to the limit angle, the two needle outlet holes 326 and the two first tapered holes 333 correspond coaxially one by one.

[0050] In actual operation, when the valve annulus 400 is clamped and fixed by the lower clamping arm 32, the first clamping arm 33, and the second clamping arm 36, the two puncture needles 351 pass through the needle outlet holes 326, then pierce the valve annulus 400 and enter the corresponding first tapered holes 333. The diameter of the first tapered hole 333 on the side close to the needle outlet hole 326 being larger than that on the other side can play a guiding role for the puncture needles 351, enabling the two puncture needles 351 to accurately penetrate into the first clamping arm 33 and the second clamping arm 36 respectively.

[0051] In some embodiments, as Figure 2 , Figure 3 , Figure 5 , Figure 6 shown, the first clamping arm 33 further includes a clamping member 331. The clamping member 331 is fixed at one end of the first clamping arm 33 away from the main body member 31. The clamping member 331 is connected to the sleeve 342 and is used to fix the sleeve 342. Among them, a slit 3311 and a second tapered hole 3312 are provided in the middle of the clamping member 331. The second tapered hole 3312 corresponds coaxially to the first tapered hole 333, and the pull rope assembly 34 is clamped in the slit 3311.

[0052] It should be noted that the slit 3311 is a slit on the clamping member 331 and is connected to the second conical hole 3312. The slit 3311 can endow the clamping member 331 with a certain elasticity, enabling the second conical hole 3312 to expand moderately, facilitating the clamping of the sleeve 342. The second conical hole 3312 corresponds coaxially to the first conical hole 333, which can facilitate the accurate engagement of the puncture needle 351 with the sleeve 342 and avoid the misconnection of the puncture needle 351 and the pull cord assembly 34.

[0053] Furthermore, in some embodiments, a placement portion 332 is provided at one end of the first upper clamping arm 33 away from the main body member 31. A restricting member 338 is provided at the placement portion 332, and the clamping member 331 is fixed to the placement portion 332 by the restricting member 338. Among them, the restricting member 338 is used to fix the clamping member 331 to the placement portion 332 to prevent the clamping member 331 from falling off.

[0054] In one embodiment, as Figure 11 shown, the first upper clamping arm 33 further includes an elastic member 335. A third conical hole 3351 is formed inside the elastic member 335. The elastic member 335 is fixed to the placement portion 332. The elastic member 335 is used to clamp the sleeve 342. The third conical hole 3351 corresponds coaxially to the first conical hole 333. The elastic member 335 further includes a head end 3353. The head end 3353 is located at one end of the elastic member 335 away from the placement portion 332. A number of second elastic pieces 05 are provided on the head end 3353 to facilitate the fixation of the sleeve 342.

[0055] Among them, one of the elastic member 335 and the placement portion 332 is provided with a first positioning ring 3352, and the other of the elastic member 335 and the placement portion 332 is provided with a positioning groove 3321. The positioning groove 3321 matches the first positioning ring 3352. The positioning groove 3321 and the first positioning ring 3352 are used to help the elastic member 335 be fixed in the appropriate position of the placement portion 332. After the elastic member 335 clamps the sleeve 342, the hole position of the sleeve 342 can correspond coaxially to the first conical hole 333, thereby facilitating the puncture needle 351 to penetrate.

[0056] In one embodiment, as Figure 12As shown, the upper clamp arm 33 also includes a clamping device 336, which is fixed to the placement portion 332; the clamping device 336 includes an elastic sleeve 3361 and a base 3362, the elastic sleeve 3361 is connected to the base 3362, the base 3362 is used to fix the clamping device 336 to the placement portion 332, the elastic sleeve 3361 is used to clamp the sleeve 342, and the base 3362 is provided with an annular groove 07 on one side close to the elastic sleeve 3361, the elastic sleeve 3361 is plugged with the base 3362 through the annular groove 07, the plug-in end of the elastic sleeve 3361 is provided with a circle of round holes 10, and the elastic sleeve 3361 and the base 3362 are plugged and fixed with each other through a pin 001. A plurality of spring pieces 309 are provided at one end of the elastic sleeve 3361 away from the base 3362, and the spring pieces 309 are bent inward to clamp the sleeve 342 to fix the sleeve 342. Between the base 3362 and the placement part 332, one of the base 3362 and the placement part 332 is provided with a positioning ring 206, and the other of the base 3362 and the placement part 332 is provided with a positioning groove 3321, and the positioning groove 3321 matches the positioning ring 206. The positioning groove 3321 and the positioning ring 206 are used to help the elastic member 335 to be fixed at a suitable position of the placement part 332, so that after the elastic member 335 clamps the sleeve 342, the hole position of the sleeve 342 can be coaxially corresponding to the conical hole 1 333, thereby facilitating the puncture needle 351 to pass through.

[0057] In some embodiments, Figure 7 , Figure 10 As shown, the lower clamp arm 32 is provided with a gasket groove 321 and a suture channel 1 322, the gasket groove 321 is close to the main body 31 and is used to place the gasket 02, and the gasket groove 321 and the suture channel 1 322 are connected; the main body 31 is provided with a suture channel 2 314, and the suture channel 2 314 is connected with the suture channel 1 322; wherein, the suture 01 is passed through the suture channel 2 314, the suture channel 1 322 and the gasket groove 321, and the two ends of the suture 01 pass through the gasket 02 and are connected with the puncture needle 351.

[0058] It should be noted that suture channel 1 322 and suture channel 2 314 are used to thread suture 01. Both ends of suture 01 pass through gasket 02. In actual operation, after the pull rope assembly 34 pulls out the puncture needle 351 and suture 01, gasket 02 will be fixed to the valve ring 400 by suture 01. There is no need to tie a knot to fix gasket 02 to the valve ring 400, which reduces the steps and difficulty of the operation process. Specifically, both free ends of suture 01 pass through gasket 02. Before puncture, the U-shaped end of suture 01 is stored in suture channel 2 314 and suture channel 1 322. After the puncture needle puncture is completed, as suture 01 is pulled and gasket 02 is moved, gasket 02 is finally moved to the puncture position on the valve ring 400 (such asFigure 6 As shown, the U-shaped end of the suture 01 will remain on the gasket 02 and then fix the gasket 02 to the annulus 400.

[0059] In some embodiments, such as Figure 2 , Figure 5 , Figure 7 , Figure 8 As shown, the suture component 300 further includes a puncture assembly 35 for puncturing the annulus 400. The puncture assembly 35 includes a puncture needle 351 and a flexible tube 352. The puncture needle 351 is connected to the flexible tube 352. The puncture needle 351 and the flexible tube 352 are disposed inside the first clamping arm 33. The flexible tube 352 is used to drive the puncture needle to move. Among them, a card slot 3512 is formed in the middle of the puncture needle 351, and a first elastic piece 3421 is disposed inside the sleeve 342. The first elastic piece 3421 is used to engage with the card slot 3512 in the puncture state to fix the puncture needle 351 to the sleeve 342 and prevent the puncture needle 351 from detaching from the sleeve 342, so that the pulling rope assembly 34 can smoothly pull the puncture needle 351 and the suture 01 along the puncture direction.

[0060] In some embodiments, such as Figure 5 , Figure 6 As shown, a limiting portion 3514 is provided in the middle of the puncture needle 351, and the flexible tube 352 abuts against the limiting portion 3514. Among them, the limiting portion 3514 is specifically an annular protrusion.

[0061] When the flexible tube 352 is connected to the puncture needle 351, the two are connected by insertion. During the insertion process, it is not easy to determine the insertion distance between the two. At this time, the limiting portion 3514 can abut against one end of the flexible tube 352 to determine the insertion distance between the flexible tube 352 and the puncture needle 351, and can also prevent the puncture needle 351 from retracting due to the reaction force when puncturing the annulus 400, ensuring the puncture effect of the puncture needle 351.

[0062] In some embodiments, such as Figure 14 , Figure 15 As shown, the flexible tube 352 includes a clamping end 3521 and a bending portion 3522. The clamping end 3521 is connected to the puncture needle 351, and the bending portion 3522 is adjacent to the clamping end 3521. The clamping end 3521 is the end of the flexible tube 352 that clamps the puncture needle 351, and the bending portion 3522 is the part adjacent to the clamping end 3521 and is easy to bend. The through channel of the flexible tube 352 is bent and narrow, and the bending portion 3522 can conform to the arc change of the channel, so that the flexible tube 352 can move inside the channel conveniently.

[0063] Such as Figure 14 , Figure 15As shown, short slits 03 and long slits 04 are formed on the clamping end 3521 to form a bifurcated structure. The connection between the bifurcated structure and the puncture needle 351 is close to each other to facilitate clamping of the puncture needle 351. The length of the long slit 04 is greater than that of the short slit 03, and the suture passes through the long slit 04.

[0064] An annulus suture constriction device, as Figure 1 shown, includes a handle member 100, a connecting tube 200, and a suture member 300. One end of the connecting tube 200 is connected to the handle member 100, and the other end is connected to the suture member 300.

[0065] In some embodiments, as Figure 7 、 Figure 9 shown, a channel corresponding to and communicating with the internal channel of the suture member 300 is provided inside the connecting tube 200. The puncture assembly 35, the suture 01, and the drawstring assembly 34 are disposed in the channels inside the connecting tube 200 and the suture member 300. A control wire assembly is further provided inside the connecting tube 200. The control wire assembly is respectively connected to the clamping arm assembly and the handle member 100; the control wire assembly is used to control the movement of the clamping arm assembly, so that the operator can control the clamping arm assembly through the handle member 100 outside the body.

[0066] In the description of the present invention, it should be further noted that, unless otherwise clearly defined and limited, the terms "disposed", "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the phrase "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0068] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suture component (300), characterized in that, Comprising: A clamping arm assembly for clamping a valve annulus (400); Two drawstring assemblies (34), the two drawstring assemblies (34) being connected to the clamping arm assembly. The drawstring assembly (34) includes a sleeve (342) and a drawstring (341). One end of the sleeve (342) is connected to the clamping arm assembly, and the other end is connected to the drawstring (341); Two puncture needles (351), the two puncture needles (351) being connected to the clamping arm assembly. The two puncture needles (351) are used to connect the two ends of a suture (01). The two puncture needles (351) puncture the valve annulus (400), and the two puncture needles (351) correspond to the two drawstring assemblies (34) one by one. The two puncture needles (351) puncture the valve annulus (400) and are correspondingly connected to the sleeves (342) of the two drawstring assemblies (34) to form a puncture state. In the puncture state, the two drawstring assemblies (34) pull out the two puncture needles (351) and the suture (01) along the puncture direction.

2. The suture member (300) according to claim 1, characterized in that, The suture component further includes a main body member (31), the main body member (31) being rotatably connected to the clamping arm assembly. The clamping arm assembly includes a lower clamping arm (32), a first clamping arm (33), and a second clamping arm (36). The lower clamping arm (32), the first clamping arm (33), and the second clamping arm (36) are respectively rotatably connected to the main body member (31). The first clamping arm (33) and the second clamping arm (36) are mirror images of each other. The valve annulus (400) is clamped between the lower clamping arm (32), the first clamping arm (33), and the second clamping arm (36). The lower clamping arm (32), the first clamping arm (33), and the second clamping arm (36) are embedded in and fit with the main body member (31); Wherein, the rotation axes of the first clamping arm (33) and the second clamping arm (36) form a certain angle with each other. When expanded to the limit angle, along the extension direction of the first clamping arm (33) and the second clamping arm (36), the distance between them gradually increases.

3. The suture member (300) according to claim 2, characterized in that, One end of the first clamping arm (33) and the second clamping arm (36) away from the main body member (31) are both provided with a first tapered hole (333). One end of the lower clamping arm (32) away from the main body member (31) is provided with two needle outlet holes (326). The puncture needles (351) pass through the needle outlet holes (326). The diameter of the first tapered hole (333) on the side close to the needle outlet hole (326) is larger than that on the other side; Wherein, when the first clamping arm (33), the second clamping arm (36), and the lower clamping arm (32) are expanded to the limit angle, the two needle outlet holes (326) and the two first tapered holes (333) correspond coaxially one by one.

4. The suture member (300) according to claim 2, characterized in that, The first The clamping arm (33) further includes a clamping member (331), the clamping member (331) being fixed to one end of the first clamping arm (33) away from the main body member (31), and the clamping member (331) being connected to the sleeve (342); Among them, a slit (3311) and a second tapered hole (3312) are formed in the middle of the clamping member (331). The second tapered hole (3312) corresponds coaxially to the first tapered hole (333), and the cable assembly (34) is clamped within the slit (3311).

5. The suture component (300) according to claim 2, characterized in that, The lower clamping arm (32) is provided with a gasket groove (321) and a first suture channel (322). The gasket groove (321) is close to the main body member (31) and is used for placing the gasket (02). The gasket groove (321) communicates with the first suture channel (322); a second suture channel (314) is formed inside the main body member (31), and the second suture channel (314) communicates with the first suture channel (322). Among them, the suture (01) passes through the second suture channel (314), the first suture channel (322) and the gasket groove (321). Both ends of the suture (01) pass through the gasket (02) and are connected to the puncture needle (351).

6. The suture component (300) according to claim 2, wherein, The suture component (300) further includes a puncture assembly (35). The puncture assembly (35) includes the puncture needle (351) and a flexible tube (352). The puncture needle (351) is connected to the flexible tube (352), and the puncture needle (351) and the flexible tube (352) pass through the inside of the first clamping arm (33). Among them, a clamping groove (3512) is formed in the middle of the puncture needle (351). A first elastic piece (3421) is arranged inside the sleeve (342). In the puncture state, the clamping end (3521) is engaged with the first elastic piece (3421).

7. The suture component (300) according to claim 6, characterized in that, A limiting portion (3514) is arranged in the middle of the puncture needle (351), and the flexible tube (352) abuts against the limiting portion (3514).

8. The suture component (300) according to claim 6, wherein, The flexible tube (352) includes a clamping end (3521) and a bending portion (3522). The clamping end (3521) is connected to the puncture needle (351), and the bending portion (3522) is adjacent to the clamping end (3521).

9. An annulus suture constriction device, characterized in that, It includes a handle member (100), a connecting tube (200) and the suture component (300) according to any one of claims 1 to 8. One end of the connecting tube (200) is connected to the handle member (100), and the other end is connected to the suture component (300).

10. The annulus suture constriction device according to claim 9, wherein, A channel corresponding to and communicating with the internal channel of the suture component (300) is formed inside the connecting tube (200). The puncture assembly (35), the suture (01) and the cable assembly (34) pass through the channels inside the connecting tube (200) and the suture component (300). A control wire assembly is further arranged inside the connecting tube (200), and the control wire assembly is respectively connected to the clamping arm assembly and the handle member (100).

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