A staple changing device, a tissue suturing system and a staple changing method thereof

Abstract

The present application provides a nail changing device, a tissue suturing system and a nail changing method thereof. The nail changing device comprises: an elastic member and two clamping members, the two clamping members are rotatably connected, the clamping members are located on both sides of the rotation axis, and are respectively a clamping end and a pinching end, the clamping end has a receiving groove, a limiting groove and a threading groove, the limiting groove is located at the end of the clamping end and is connected to the receiving groove. The elastic member is arranged between the two clamping members, under the action of the elastic member, the clamping ends of the two clamping members fit together, the receiving grooves of the two clamping ends are connected to form a receiving cavity, the limiting grooves of the two clamping ends are connected to form a limiting cavity, the threading grooves of the two clamping ends are connected to form a threading cavity, and when the spring section of the suture nail assembly is placed in the receiving cavity, the suture fixing part of the suture nail assembly is limited to the limiting cavity, and the threading cavity is connected to the suture fixing hole of the suture fixing part. When an external force is applied to the pinching end, the clamping ends of the two clamping members are separated to release the suture nail assembly.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular, to a staple changing device, a tissue suturing system and a staple changing method thereof. Background Art

[0002] The suture staple device is used to implant a suture staple assembly into human tissue. During the entire surgical process, it is usually necessary to implant multiple suture staple assemblies into human tissue. In the prior art, the tissue suturing system needs to be coordinated in advance with multiple suture staple assemblies that have been inserted into the suture. The number of suture staple assemblies is fixed and cannot be increased or decreased. After the current suture staple assembly is implanted into the tissue, it is necessary to replace a new suture staple assembly on the suture staple device, and the surgeon usually needs to manually replace the staples. The suture staple assembly is extremely small in size, with an outer diameter of about 1.8 mm. It is extremely difficult to replace the staples manually, which increases the surgeon's burden and is not conducive to improving operational efficiency. Summary of the invention

[0003] In order to solve one of the above-mentioned technical defects, an embodiment of the present application provides a staple changing device, a tissue suturing system and a staple changing method thereof.

[0004] According to a first aspect of an embodiment of the present application, there is provided a nail replacing device, comprising:

[0005] Two clamping members, the two clamping members are rotatably connected, the clamping members are located at two sides of the rotation axis and are respectively a clamping end and a pinching end, the clamping end has a receiving groove, a limiting groove and a threading groove, the limiting groove is located at the end of the clamping end and is connected to the receiving groove;

[0006] An elastic member, wherein the elastic member is disposed between the two clamping members. Under the action of the elastic member, the clamping ends of the two clamping members fit together, the accommodating grooves of the two clamping ends are connected to form an accommodating cavity, the limiting grooves of the two clamping ends are connected to form a limiting cavity, and the threading grooves of the two clamping ends are connected to form a threading cavity;

[0007] When the spring section of the suture nail assembly is placed in the accommodating cavity, the suture fixing part of the suture nail assembly is limited in the limiting cavity, and the threading cavity is connected to the suture fixing hole of the suture fixing part;

[0008] When an external force is applied to the gripping end, the gripping ends of the two gripping members are separated to release the suture nail assembly.

[0009] Optionally, the limiting cavity includes two first limiting surfaces and one second limiting surface;

[0010] The two first limiting surfaces extend along the length direction of the accommodating groove, a gap is provided between the two first limiting surfaces, the second limiting surface is located on a side of the first limiting surface close to the holding end, and the second limiting surface vertically connects the two first limiting surfaces;

[0011] When the suture fixing part is limited in the limiting cavity, the two first limiting surfaces are limited on both sides of the suture fixing part along the circumference of the nail changing device to limit the rotation of the suture fixing part, and the second limiting surface is limited on the side of the suture fixing part close to the pinching end to limit the movement of the suture fixing part toward the pinching end.

[0012] Optionally, the threading cavity includes a first opening located on the outer surfaces of the two clamping members and a second opening located on the second limiting surface of the limiting cavity;

[0013] When the suture fixing portion of the suture nail assembly is limited in the limiting cavity, the second opening is connected to the suture fixing hole of the suture fixing portion.

[0014] Optionally, in a direction from the first opening to the second opening, a cross-sectional area of ​​the threading cavity gradually decreases.

[0015] Optionally, the nail changing device includes a rotating shaft;

[0016] The clamping member has a hinged seat;

[0017] The rotating shafts are respectively arranged through the hinge seats of the two clamping parts;

[0018] The elastic member is a torsion spring, the spiral section of the torsion spring is sleeved on the rotating shaft, and the two torsion arms of the torsion spring are respectively pressed against the two clamping members.

[0019] According to a second aspect of an embodiment of the present application, there is provided a tissue suturing system, comprising:

[0020] A staple device having an elastic tube and a releaser slidably disposed at an end of the elastic tube;

[0021] The above-mentioned staple changing device is used to clamp the spring segment of the staple assembly so that the connecting tube of the staple assembly is exposed to be sleeved on the releaser.

[0022] According to a third aspect of an embodiment of the present application, a staple replacement method of the tissue suturing system is provided, comprising:

[0023] Step S1, operating the suture staple device so that the releaser extends out of the elastic tube;

[0024] Step S2, holding the staple changing device equipped with the staple assembly, and adjusting the position of the staple changing device so that the connecting tube of the staple assembly is sleeved on the releaser;

[0025] Step S3, inserting the suture along the threading cavity on the staple changing device, so that the suture passes through the suture fixing hole of the suture staple assembly;

[0026] Step S4: pinching the holding ends of the clamping members to separate the holding ends of the two clamping members to release the suture staple assembly.

[0027] Optionally, the releaser has an external convex rib, and the inner wall of the connecting tube is provided with an internal convex rib;

[0028] In step S2, under the action of external force, the connecting tube moves along the releaser, so that the inner convex rib of the connecting tube is clamped with the outer convex rib of the releaser close to the side of the elastic tube.

[0029] Optionally, in step S2, the clamping ends of the two clamping members of the staple changing device are pinched so that the clamping members keep clamping the suture staple assembly.

[0030] Optionally, the suturing nail device comprises a handle, a cable and a slip ring, one end of the elastic tube is connected to the handle, the cable is slidably arranged in the elastic tube, one end of the cable is connected to a releaser, the slip ring is slidably arranged on the handle, and the slip ring is transmission-connected to the other end of the cable;

[0031] In step S1, the slip ring is pushed toward one side of the elastic tube so that the releaser extends out of the elastic tube.

[0032] Optionally, in step S1, when the slip ring is adjusted so that the releaser extends out of the elastic tube, the slip ring is locked on the handle by a locking mechanism.

[0033] By adopting the above technical solution, the present application has the following beneficial effects:

[0034] The present application provides a convenient nail changing device, which can clamp a smaller size of suture nail assembly. The size of the nail changing device is larger than the suture nail, which is convenient for the operator to pinch and operate. Compared with changing nails by hand, the nail changing device of the present application can significantly improve the efficiency of surgery and reduce the workload and difficulty of operation of the operator. The nail changing device of the present application can facilitate suture threading, and the suture nails of the tissue suturing system are not limited in number, and the flexibility is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0036] Figure 1A schematic diagram showing the structure of a nail replacing device provided in an embodiment of the present application is shown;

[0037] Figure 2 Show Figure 1 Enlarged view of middle part B;

[0038] Figure 3 A schematic diagram showing the structure of a clamping member of a nail changing device provided in an embodiment of the present application is shown;

[0039] Figure 4 A diagram showing a state in which a staple changing device provided by an embodiment of the present application clamps a suture staple assembly;

[0040] Figure 5 A diagram showing the internal state of a staple changing device clamping a suture staple assembly provided by an embodiment of the present application;

[0041] Figure 6 A diagram showing a state in which a staple changing device is used to clamp a staple assembly and is ready to be installed on a releaser;

[0042] Figure 7 A diagram showing a state in which a staple assembly is installed on a releaser using a staple changing device;

[0043] Figure 8 A schematic diagram showing threading a suture onto a suture staple assembly by means of a staple changing device;

[0044] Fig. 9 Show Figure 8 Internal state diagram of

[0045] Fig.10 A state diagram showing a state in which the clamping end of the clamping member is pinched to separate the clamping ends of the two clamping members to release the suture staple assembly;

[0046] Fig.11 A diagram showing the coordination structure of a first type of staple assembly and a releaser in a tissue suturing system provided by an embodiment of the present application;

[0047] Fig.12 for Fig.11 A cross-sectional view of

[0048] Fig.13 A schematic structural diagram of a first type of staple assembly in a tissue suturing system provided in an embodiment of the present application is shown;

[0049] Fig.14 Shown with Fig.13 A schematic diagram of the structure of a releaser that cooperates with the suture staple assembly;

[0050] Fig.15 A diagram showing the coordination structure of a second type of staple assembly and a releaser in a tissue suturing system provided in an embodiment of the present application;

[0051] Fig.16 Shown with Fig.15 A schematic diagram of the structure of a releaser that cooperates with the suture staple assembly;

[0052] Fig.17 A schematic structural diagram of a second type of staple assembly in a tissue suturing system provided in an embodiment of the present application is shown;

[0053] Fig.18 The structure of the first staple device in the tissue suturing system provided by the embodiment of the present application is shown;

[0054] Fig.19 for Fig.18 A cross-sectional view of

[0055] Fig. 20 for Fig.18 Another perspective of the picture;

[0056] Fig.21 Show Fig. 20 Structural diagram of the middle slip ring;

[0057] Fig. 22 A partial structural diagram showing a locking assembly of a first type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0058] Fig.23 A cross-sectional view showing a sliding ring of a second staple device in a tissue suturing system provided in an embodiment of the present application in an unlocked state;

[0059] Fig.24 A cross-sectional view showing a sliding ring of a second suturing staple device in a tissue suturing system provided in an embodiment of the present application in a locked state;

[0060] Fig.25 Show Fig.24 Enlarged view of part A in the middle;

[0061] Fig.26 A schematic structural diagram showing a handle of a second type of suturing staple device in a tissue suturing system provided in an embodiment of the present application;

[0062] Fig. 27 A partial structural cross-sectional view showing a second type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0063] Fig.28 A schematic diagram showing a sliding ring of a third type of staple device in a tissue suturing system provided in an embodiment of the present application in an unlocked state;

[0064] Fig.29 A schematic diagram showing a sliding ring of a third type of staple device in a tissue suturing system provided in an embodiment of the present application in a locked state;

[0065] Fig.30 A three-dimensional structural diagram showing a third type of suturing staple device in a tissue suturing system provided in an embodiment of the present application is shown;

[0066] Fig.31 A schematic diagram showing the structure of an inner slider of a third type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0067] Fig.32 A schematic structural diagram showing a fourth type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0068] Fig.33 Show Fig.32 Cross-sectional view of the local structure;

[0069] Fig.34 A schematic structural diagram showing a handle cap of a fourth type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0070] Fig.35 A schematic diagram showing the structure of an indicator block of a fourth type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0071] Fig.36 A schematic structural diagram showing a rotating linkage member of a fourth type of staple device in a tissue suturing system provided in an embodiment of the present application;

[0072] Fig.37 A schematic diagram showing a thread cutting device in a tissue suturing system provided in an embodiment of the present application;

[0073] Fig.38 A schematic diagram showing threading a suture on a thread cutting assembly provided in an embodiment of the present application is shown;

[0074] Fig.39 A cross-sectional view showing a thread cutting assembly of a tissue suturing system provided by an embodiment of the present application in a state before cutting;

[0075] Fig.40 A diagram showing a state in which a thread fixing mechanism in a thread trimming assembly of a tissue suturing system provided in an embodiment of the present application clamps a suture;

[0076] Fig.41 A state diagram showing a state in which a driving wire in a thread cutting assembly of a tissue suturing system provided by an embodiment of the present application is separated from a thread fixing mechanism;

[0077] Fig.42 A diagram showing a post-cutting state of the thread cutting assembly of the tissue suturing system provided by an embodiment of the present application;

[0078] Fig.43 A schematic structural diagram of a stopper of a thread trimmer assembly of a tissue suturing system provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0079] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0080] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application 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 understood as a limitation on the present application.

[0081] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0082] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0083] Embodiment 1

[0084] See also Figures 1 to 10As shown, the embodiment of the present application provides a nail changing device 200, including: an elastic member 230 and two clamping members 210. The two clamping members 210 are rotatably connected, and the clamping members 210 are located on both sides of the rotation axis, which are a clamping end and a pinching end respectively. The clamping end has a receiving groove 211a, a limiting groove 212a and a threading groove 213a. The limiting groove 212a is located at the end of the clamping end and is connected to the receiving groove 211a. The elastic member 230 is arranged between the two clamping members 210. Under the action of the elastic member 230, the clamping ends of the two clamping members 210 are fitted together, and the receiving grooves 211a of the two clamping ends are connected to form a receiving cavity 211, the limiting grooves 212a of the two clamping ends are connected to form a limiting cavity 212, and the threading grooves 213a of the two clamping ends are connected to form a threading cavity 213. When the spring segment 310 of the suture nail assembly 300 is placed in the accommodating cavity 211, the suture fixing portion 330 of the suture nail assembly 300 is limited in the limiting cavity 212, and the threading cavity 213 is connected to the suture fixing hole 331 of the suture fixing portion 330. When an external force is applied to the pinching end, the clamping ends of the two clamping members 210 are separated to release the suture nail assembly 300.

[0085] The present application provides a convenient nail changing device 200, which can clamp a smaller suture nail assembly 300. The size of the nail changing device 200 is larger than the suture nail assembly, which is convenient for the operator to pinch and operate. Compared with changing nails by hand, the nail changing device 200 of the present application can significantly improve the efficiency of the operation, reduce the workload and difficulty of the operator. The nail changing device 200 of the present application can facilitate the threading of sutures, and the suture nails of the tissue suturing system are not limited in number, and the flexibility is higher.

[0086] In some possible implementations, see Figure 2 and Figure 4 As shown, the limiting cavity 212 includes two first limiting surfaces 2121 and one second limiting surface 2122. The two first limiting surfaces 2121 extend along the length direction of the accommodating groove. There is a gap between the two first limiting surfaces 2121. The second limiting surface 2122 is located on the side of the first limiting surface 2121 close to the holding end. The second limiting surface 2122 vertically connects the two first limiting surfaces 2121. When the suture fixing part 330 is limited in the limiting cavity 212, the two first limiting surfaces 2121 are limited to the two sides of the suture fixing part 330 along the circumference of the nail changing device 200 to limit the rotation of the suture fixing part 330. The second limiting surface 2122 is limited to the side of the suture fixing part 330 close to the holding end to limit the movement of the suture fixing part 330 toward the holding end.

[0087] In some possible implementations, see Figure 2 and Figure 3 As shown, the threading cavity 213 includes a first opening 2131 located on the outer surface of the two clamping members 210 and a second opening 2132 located on the second limiting surface 2122 of the limiting cavity 212. When the suture fixing portion 330 of the suture nail assembly 300 is limited in the limiting cavity 212, the second opening 2132 is connected to the suture fixing hole 331 of the suture fixing portion 330. The suture 500 can slide along the threading cavity 213 to pass through the suture fixing hole 331 of the suture nail assembly 300, which is convenient to operate.

[0088] The cross-sectional area of ​​the threading cavity 213 gradually decreases in the direction from the first opening 2131 to the second opening 2132. The first opening 2131 has the largest area, which can facilitate the smooth insertion of the end of the suture 500 into the threading cavity 213, and the second opening 2132 has the smallest area and can be smoothly connected to the suture fixing hole 331, so that the end of the suture 500 can be smoothly inserted into the suture fixing hole 331.

[0089] In some possible implementations, see Figure 3 As shown, the nail changing device 200 includes a rotating shaft 220, and the clamping member 210 has a hinge seat 214. The rotating shaft 220 is respectively penetrated through the hinge seats 214 of the two clamping members 210, and the elastic member 230 is a torsion spring. The spiral section of the torsion spring is sleeved on the rotating shaft 220, and the two torsion arms of the torsion spring are respectively pressed against the two clamping members 210. The torsion spring can press against the holding ends of the two clamping members 210, so that the two holding ends are separated, and the clamping ends of the clamping members 210 are normally closed to clamp the suture nail assembly 300.

[0090] Embodiment 2

[0091] See also Figures 1 to 43 As shown, the present invention provides a tissue suturing system, including: a suturing nail device 100 and a nail changing device 200. The suturing nail device 100 has an elastic tube 2 and a releaser 8 slidably disposed at the end of the elastic tube 2, and the releaser 8 is connected to the end of the cable 4 of the suturing nail device. The nail changing device 200 is used to clamp the spring segment 310 of the suturing nail assembly 300, so that the connecting tube 320 of the suturing nail assembly 300 is exposed to be sleeved on the releaser 8. Figures 11 to 14 As shown, the inner wall of the connecting tube 320 is provided with an inner convex rib 321, and the outer wall of the releaser 8 is provided with an outer convex rib 81. When the connecting tube 320 is sleeved on the releaser 8, the inner convex rib 321 and the outer convex rib 81 are snap-fitted together, and the connecting tube 320 will not be easily separated from the releaser 8.

[0092] See also Figures 15 to 17As shown, the end of the releaser 8 can be grooved to form two elastic parts 82, and the two elastic parts 82 are both provided with external convex ribs 81. By providing the two elastic parts 82, after being inserted into the connecting tube 320, they can elastically press against the inner wall of the connecting tube 320 and the internal convex ribs 321 on the inner wall of the connecting tube 320 to effectively engage with each other and will not be easily unstuck.

[0093] A synchronization rib 83 may be provided on the releaser 8, and a synchronization groove 340 may be provided on the connecting tube 320. The synchronization rib 83 may be inserted into the synchronization groove 340 so that the releaser 8 and the suture nail assembly can rotate synchronously.

[0094] Embodiment 3

[0095] See also Fig.18 and Fig.19 As shown, the third embodiment of the present application describes the tissue suturing system in detail, which includes a suture nail assembly 300, and the suture nail device 100 includes: a handle 1, a handle cap 7, an elastic tube 2, a cable 4 and a slip ring 5. The handle cap 7 is rotatably arranged on the handle 1, and the handle 1 limits the movement of the handle cap 7 along the length direction of the handle 1. One end of the elastic tube 2 is connected to the handle cap 7. The suture nail assembly 300 is located at the end of the elastic tube 2 away from the handle 1. The cable is slidably inserted into the elastic tube 2, and one end of the cable is detachably connected to the suture nail assembly 300. The slip ring 5 is slidably arranged on the handle 1, and the slip ring 5 is connected to the other end of the cable 4. The slip ring 5 moves along the handle 1 and can drive the suture nail assembly 300 to move along the extension direction of the elastic tube 2 through the cable. The handle 1 rotates around the handle cap 7 and can drive the suture nail assembly 300 to rotate synchronously through the cable.

[0096] When the staple assembly 300 needs to be operated to implant tissue, the handle 1 is rotated, the handle 1 and the slip ring 5 rotate, and the cable 4 is driven to rotate synchronously, so that the staple assembly 300 can be rotated to be implanted in human tissue. When the cable 4 needs to be controlled to move telescopically, the slip ring 5 can be slid, and the releaser 8 connected to the staple assembly at the end can be driven by the cable 4 to move.

[0097] The suture staple device provided in the embodiment of the present application has a simple structure and is easy to operate. The operation of controlling the rotation of the suture staple assembly 300 and the operation of controlling the extension and retraction of the suture staple assembly 300 are independent, which is convenient for the surgeon to control them separately, which is beneficial to improving the operation accuracy and improving the quality of the surgery.

[0098] In some possible implementations, see Fig.34 and Fig.33As shown, the inner wall of the handle cap 7 is provided with a guide rib 70, and the guide rib 70 extends along the circumference of the handle cap 7. One end of the handle 1 is provided with an annular groove 122, and the annular groove 122 extends along the circumference of the handle 1. When the handle cap 7 is sleeved on the handle 1, the guide rib 70 is embedded in the annular groove 122. The guide rib is not a closed ring. A plurality of guide ribs 70 can be provided on the inner wall of the handle cap 7. Each guide rib 70 is sequentially arranged along the circumference of the handle cap 7. There is a disconnection area between adjacent guide ribs 70, so that the end of the handle 1 can be plugged and installed in the annular groove 122. The handle cap 7 is a plastic structure with a certain deformation ability. Each guide rib 70 is not a closed ring. Under sufficient external force, the end of the handle 1 can be plugged into the handle cap 7 by slight deformation, so that the guide rib 70 is stuck in the annular groove 122.

[0099] In some possible implementations, see Fig.30 and Fig.33 As shown, the handle 1 includes two rod bodies 11 arranged at intervals and end sections 12 located at both ends of the two rod bodies 11 and respectively fixedly connected to the two rod bodies 11, a groove is formed between the two rod bodies 11, a slip ring 5 is slidably connected to the two rod bodies 11, the slip ring 5 has an inner slider 52 located in the groove, the cable 4 extends into the groove and is connected to the inner slider 52, the annular groove 122 is provided on the end section 12, and the handle cap 7 is sleeved on the end section 12.

[0100] Embodiment 4

[0101] like Figures 18 to 22 As shown, the embodiment of the present application provides a structural schematic diagram of a first type of suture device 100 of a tissue suturing system, which includes: a handle 1, an elastic tube 2, a suture staple assembly 300, a cable, a slip ring 5 and a locking assembly 6. One end of the elastic tube 2 is connected to the handle 1, and the suture staple assembly is located at the end of the elastic tube 2 away from the handle 1. The cable is slidably inserted into the elastic tube 2, one end of the cable is transmission-connected to the suture staple assembly, and the slip ring 5 is slidably arranged on the handle 1, and the slip ring 5 is transmission-connected to the other end of the cable. The locking assembly 6 is arranged on the handle 1 and / or the slip ring 5, and is used to lock the slip ring 5 to the handle 1 or release the slip ring 5.

[0102] The locking assembly 6 provided on the suture staple device of the present application can lock the slip ring 5 to the handle 1, so that the pull cable cannot move along the elastic tube 2, and the position and state of the suture staple assembly remain fixed, thereby reducing the operator's fatigue for a long time and facilitating the operator to perform other related operations.

[0103] When the suture staple assembly 300 needs to be replaced, the operator slides the slip ring 5 so that the releaser at the end of the cable extends out of the elastic tube 2, and then the slip ring 5 can be locked to the handle 1 by operating the locking assembly 6. The cable will not move along the elastic tube 2, and the releaser will remain extended from the elastic tube 2. The operator does not need to keep hooking the slip ring 5 to prevent it from moving back and forth. The operator can easily assemble the new suture staple assembly 300 on the releaser, the fatigue strength of the operating fingers is reduced, the operating efficiency is improved, and the progress of the operation is accelerated.

[0104] In some possible embodiments, the handle 1 includes two rods 11, the two rods 11 are connected, a through groove 13 is formed between the two rods 11, the locking assembly 6 is rotatably connected to the slip ring 5, the locking assembly 6 has a locking block 61, the locking block 61 is located in the groove 13, the size of the locking block 61 along the first direction is greater than the distance between the two rods 11, and the size of the locking block 61 along the second direction is less than the distance between the two rods 11. The slip ring 5 has a locked state and an unlocked state. In the locked state, the locking assembly 6 rotates to the point where the first direction of the locking block 61 is perpendicular to the extension direction of the rod 11, and the two rods 11 are in an elastic deformation state. The locking block 61 is clamped and fixed by the two rods 11, and the sliding friction between the locking block 61 and the rod 11 is increased, so as to lock the slip ring 5. In the unlocked state, the locking assembly 6 rotates to the point where the second direction of the locking block 61 is perpendicular to the extension direction of the rod 11, and the two rods 11 recover their deformation. There is a gap between the locking block 61 and the rod body 11, and under the action of an external force, the locking block 61 can slide smoothly along the rod body 11. It should be noted that the first direction and the second direction can be perpendicular to each other.

[0105] For some possible solutions, see Fig. 22 As shown, the circumferential end surface of the locking block 61 includes two length surfaces 611 and two width surfaces 612, the two length surfaces 611 are spaced apart and arranged in parallel, the two length surfaces 611 extend along the first direction, the two width surfaces 612 are arranged on both sides of the length surface 611, the width surfaces 612 are respectively smoothly connected to the two length surfaces 611 through arc surfaces 613, and in the locked state, the width surfaces 612 are attached to the rod body 11. The length surface 611 and the width surface 612 have a smooth transition, which reduces the rotation resistance of the locking block 61. Under the action of external force, the locking assembly 6 can be smoothly rotated, and the operation is effortless.

[0106] In some possible implementations, the slip ring 5 has a rotation groove 5113, and the locking assembly 6 has a rotation block 62, the rotation block 62 is connected to the locking block 61, and the rotation block 62 is rotatably connected to the rotation groove 5113 of the slip ring 5. The rotation groove 5113 supports the rotation of the rotation block 62, and the rotation groove 5113 has the function of limiting the rotation block 62. When the position of the rotation block 62 is fixed, the position of the slip ring 5 is limited, so that the slip ring 5 is fixed and does not move along the handle 1.

[0107] In some possible implementation schemes, the slip ring 5 includes a slip ring body and an extension shell 511 disposed on the slip ring body. The extension shell 511 extends along the handle 1 , and the rotation groove 5113 is disposed on the extension shell 511 .

[0108] The rotating groove 5113 is not provided on the slip ring body, and does not affect the structural shape of the slip ring body, nor does it affect the structural strength of the slip ring body.

[0109] In some possible implementations, the locking assembly 6 includes a rotating disk 63, the locking block 61 and the rotating block 62 are respectively arranged on both sides of the rotating disk 63 along the thickness direction, and the rotating disk 63 is located between the handle 1 and the extension shell 511. The rotating disk 63 plays a limiting role, preventing the locking block 61 from being separated from the strip groove 13, so that the locking block 61 remains in the strip groove 13, thereby improving the reliability of the instrument.

[0110] In some possible implementations, the extension shell 511 includes a main board 5111 and ribs 5114 disposed on both sides of the main board 5111. The main board 5111 is provided with the rotation slot 5113, and the turntable 63 is located between the two ribs 5114. The ribs 5114 on both sides are vertically connected to the main board 5111, which plays a role in strengthening the structural strength of the extension shell 511, and can shield and protect the turntable 63.

[0111] In some possible implementations, a slide-in groove 5112 is provided on the main board 5111, and the slide-in groove 5112 extends from the rotation groove 5113 to the edge of the main board 5111, and the locking assembly 6 can slide along the slide-in groove 5112 to one side of the rotation groove 5113. The provision of the slide-in groove 5112 facilitates the assembly of the locking assembly 6 on the extension shell 511.

[0112] The suturing nail device includes a knob 65, and an outer protrusion 64 is provided on the side of the rotating block 62 away from the locking block 61, the width of the outer protrusion 64 is smaller than the sliding groove 5112, the width of the sliding groove 5112 is smaller than the outer diameter of the rotating groove 5113, the knob 65 is connected to the outer protrusion 64, and the knob 65 and the rotating disk 63 are limited to the two sides of the extension shell 511. The knob 65 is exposed outside the slip ring 5, so that the operator can easily rotate the knob 65 to lock or release the slip ring 5.

[0113] In some possible implementations, the knob 65 has a slot, and the outer protrusion 64 is inserted into the slot. The outer protrusion 64 can be set as a non-cylindrical body, for example: a flat surface is set on the outer protrusion 64, and a part of the inner wall of the corresponding slot is also set with a flat surface. When the outer protrusion 64 is inserted into the slot, the flat surface on the outer protrusion 64 and the flat surface of the slot are in contact, and the knob 65 and the outer protrusion 64 can only rotate synchronously, and will not rotate relative to each other.

[0114] Embodiment 5

[0115] See also Figure 23 to Figure 27 As shown, an embodiment of the present application provides a second type of suture device for a tissue suturing system, which includes: a handle 1, an elastic tube, a suture assembly, a pull cable and a slip ring 5. A locking portion is provided on the handle 1, one end of the elastic tube is connected to the handle 1, the suture assembly is located at the end of the elastic tube away from the handle 1, the pull cable is slidably inserted into the elastic tube, and one end of the pull cable is transmission-connected to the suture assembly. The slip ring 5 is slidably provided on the handle 1, and the slip ring 5 is transmission-connected to the other end of the pull cable, and the slip ring 5 has a locking mating portion. The slip ring 5 has a locked state and an unlocked state, see Fig.24 and Fig.25 As shown, in the locked state, the slip ring 5 slides to one side of the locking portion, and the locking matching portion and the locking portion are locked and matched to limit the slip ring 5 from sliding along the handle 1. In the unlocked state, see Fig.23 As shown, the locking fitting portion and the locking portion are separated.

[0116] A locking portion is provided on the handle 1 of the suture staple device of the present application to lock the slip ring 5 to the handle 1, so that the pull cable cannot move along the elastic tube, the position and state of the suture staple assembly remain fixed, reducing the operator's fatigue for a long time and facilitating the operator to perform other related operations.

[0117] When the suture staple assembly needs to be replaced, the operator slides the slip ring 5 so that the releaser at the end of the cable extends out of the elastic tube. At this time, the locking fitting part and the locking part can lock the slip ring 5 to the handle 1, and the cable will not move along the elastic tube. The releaser keeps extending out of the elastic tube. The operator does not need to keep hooking the slip ring 5 to prevent it from moving back and forth. The operator can easily assemble the new suture staple assembly to the releaser, and the fatigue strength of the operating fingers is reduced, the operating efficiency is improved, and the progress of the operation is accelerated.

[0118] In some possible implementations, the locking portion includes an elastic block 111 disposed on the handle 1, and the locking mating portion includes a protrusion 5211 disposed on the slip ring 5. In the locked state, the protrusion 5211 abuts against the elastic block 111, and the elastic block 111 is elastically deformed. The elastic force between the protrusion 5211 and the elastic block 111 is large, and the resistance to relative movement is large, so the slip ring 5 will not easily move along the handle 1. In the unlocked state, the protrusion 5211 is separated from the elastic block 111, and the elastic block 111 recovers its deformation. In the locked state, to switch to the unlocked state, a sufficiently large external force needs to be applied to the slip ring 5 to separate the elastic block 111 and the protrusion 5211.

[0119] In some possible implementations, the locking portion includes a clamping block 1111 disposed on the surface of the elastic block 111. In the locked state, the clamping block 1111 is clamped to the side of the protrusion 5211 away from the elastic tube. The clamping block 1111 and the protrusion 5211 are clamped together and will not be easily disengaged, so that the slip ring 5 is stably in the locked state.

[0120] In some possible embodiments, the slip ring 5 includes an outer sleeve 51 and an inner slider 52, the handle 1 includes two rod bodies 11 arranged at an interval, a groove 13 is formed between the two rod bodies 11, the elastic block 111 is arranged on the rod body 11, the outer sleeve 51 is slidably mounted on the outside of the two rod bodies 11, the inner slider 52 is slidably arranged in the groove 13, the inner slider 52 is connected to the outer sleeve 51, and the protrusion 5211 is arranged on the inner slider 52.

[0121] See also Fig.26 As shown, the rod body 11 is provided with a slot 112 connected to the strip groove 13, and the slot 112 encloses the elastic block 111. That is, the elastic block 111 is a slotted block, which is formed by slotting 112 on the rod body 11, and the elastic block 111 and the main body of the rod body 11 are an integral part, one end of the elastic block 111 is connected to the main structure of the rod body, and the other end of the elastic block 111 is suspended.

[0122] Specifically, the groove 112 includes two first grooves 1121 and one second groove 1122. The two first grooves 1121 extend along the length direction of the handle 1. The two first grooves 1121 are arranged in sequence along the circumference of the handle 1. The second groove 1122 extends along the circumference of the handle 1, and the second groove 1122 connects one end of the two first grooves 1121.

[0123] In the locked state, the inner wall of the outer shell 51 is attached to the side of the elastic block 111 away from the groove 13. Since the outer shell 51 protects the elastic block 111 and is located outside the elastic block 111, the elastic block 111 can maintain elastic contact with the protrusion 5211, and the locking structure will not fail easily.

[0124] In some possible implementations, the inner wall of the outer shell 51 is provided with a limiting groove 512 and a clamping groove 513, and the inner slider 52 is provided with a positioning block 5212 and a clamping claw 5221. The positioning block 5212 of the inner slider 52 is embedded in the limiting groove 512, and the clamping claw 5221 is clamped in the clamping groove 513. The limiting groove 512 and the clamping groove 513 limit the movement of the inner slider 52 relative to the outer shell 51. The outer shell and the inner slider 52 are clamped and limited, and the two can only move synchronously along the handle 1.

[0125] like Fig. 27 As shown, the inner slider 52 has a main block body 521 and an extension body 522, the extension body 522 is connected to one end of the main block body 521, the claw 5221 is set at the end of the extension body 522 away from the main block body 521, and the positioning block 5212 is set at the end of the main block body 521 away from the claw.

[0126] In some possible implementations, the inner slider 52 includes two half blocks, the protrusion 5211 includes half protrusions disposed on the two half blocks, the two half blocks are detachably connected, and when the two half blocks are connected, the two half protrusions 5211 are spliced ​​to form the protrusion 5211. One of the two half blocks is provided with an insertion shaft, and the other is provided with an insertion shaft socket, the insertion shaft is plugged into the socket, and the two can be connected to form an integral structure, and the two move synchronously along the handle 1.

[0127] Embodiment 6

[0128] See also Figure 28 to Figure 31 As shown, the embodiment of the present application provides a third type of suture nail device of a tissue suturing system, which includes: a handle 1, an elastic tube, a suture nail assembly, a cable and a slip ring 5. A handle cap 7 is provided at the end of the handle 1, and the handle cap 7 has a locking portion, and one end of the elastic tube is connected to the handle cap 7. The suture nail assembly is located at the end of the elastic tube away from the handle 1, the cable can be slidably inserted into the elastic tube, one end of the cable is transmission-connected to the suture nail assembly, and the slip ring 5 can be slidably arranged on the handle 1, and the slip ring 5 is transmission-connected to the other end of the cable. The slip ring 5 has a locking matching portion, and the slip ring 5 has a locked state. In the locked state, the slip ring 5 slides to one side of the handle cap 7, and the locking matching portion and the locking portion are locked and matched.

[0129] A locking portion is provided on the handle cap 7 of the suture staple device of the present application, which can lock the slip ring 5 on the handle cap 7, so that the pull cable cannot move along the elastic tube, the position and state of the suture staple assembly remain fixed, reducing the operator's fatigue for a long time and facilitating the operator to perform other related operations.

[0130] When the suture staple assembly 300 needs to be replaced, the operator slides the slip ring 5 so that the releaser 8 at the end of the cable extends out of the elastic tube. At this time, the slip ring 5 is in contact with the handle cap 7, and the locking fitting part and the locking part can lock the slip ring 5 to the handle cap 7. The cable will not move along the elastic tube, and the releaser 8 keeps extending out of the elastic tube. The operator does not need to keep hooking the slip ring 5 to prevent it from moving back and forth. The operator can easily assemble the new suture staple assembly 300 to the releaser 8, and the fatigue strength of the operating fingers is reduced, the operating efficiency is improved, and the progress of the operation is accelerated.

[0131] In some possible embodiments, the handle 1 includes two rod bodies 11 arranged at intervals, a groove 13 is formed between the two rod bodies 11, and the handle cap 7 is located at one end of the two rod bodies 11 and is sleeved on the two rod bodies 11. The slip ring 5 includes an outer sleeve 51 and an inner slider 52, the outer sleeve 51 is slidably sleeved on the outside of the two rod bodies 11, the inner slider 52 is slidably set in the groove 13, the inner slider 52 is connected to the outer sleeve 51, and the locking fitting portion is provided on the inner slider 52. In the locked state, the outer sleeve 51 abuts against the handle cap 7, and the end of the inner slider 52 extends into the inner side of the handle cap 7, so that the locking fitting portion on the inner slider 52 and the locking portion on the handle cap 7 are locked and matched.

[0132] In some possible implementations, the locking portion includes a bayonet 71 disposed on the handle cap 7, and the locking matching portion includes a first claw 5222 disposed on the inner slider 52. In the locked state, the first claw 5222 is engaged with the bayonet 71. The locking portion and the locking matching portion are engaged with each other using a clamping structure, which has a simple structure and a reliable locking structure.

[0133] In some possible embodiments, the inner slider 52 has a main block body 521 and an extension body 522, the main block body 521 is located inside the outer shell 51, one end of the extension body 522 is connected to the main block body 521, the other end of the extension body 522 extends out of the outer shell 51, and the first claw 5222 is set.

[0134] The extension body 522 extends out of the outer shell 51 , and when the outer shell 51 slides to abut against the handle cap 7 , the extension body 522 extends into the inner side of the handle cap 7 to be snap-connected with the handle cap 7 .

[0135] In some possible implementations, the handle cap 7 includes a cap body and an unlocking portion 72, the cap body has the bayonet 71, the unlocking portion 72 is located in the bayonet 71, and the unlocking portion 72 is connected to the cap body, and under the action of external force, the unlocking portion 72 can move to the inside of the bayonet 71 to push the first claw 5222 out of the bayonet 71. When there is no external force, there is a gap between the unlocking portion 72 and the first claw 5222, and the first claw 5222 will not be pushed, and the first claw 5222 can be stably clamped in the bayonet 71. The unlocking portion 72 can be integrally formed with the cap body, or it can be a structural member attached to the cap body. The unlocking portion 72 has a certain elastic deformation capacity, and can restore the deformation when the external force is removed.

[0136] In some possible implementations, the unlocking portion 72 is provided with an escape notch 721 on one side of the handle 1, and in the locked state, the first claw 5222 partially extends to the escape notch 721. By providing the escape notch 721 on the unlocking portion 72, an accommodation space can be reserved for the first claw 5222, making full use of the space, making the entire device structure compact, and facilitating reducing the size of the device.

[0137] In some possible implementations, the unlocking portion 72 has an outer protrusion 722 protruding from the bayonet 71. When the slip ring 5 needs to be unlocked, the operator can press the outer protrusion 722 with a finger to deform the unlocking portion 72 toward the inside of the handle cap 7 to push against the first claw 5222, so that the first claw 5222 is separated from the bayonet 71.

[0138] In some possible implementations, the handle cap 7 is provided with a slot connected to the strip slot 13, and the slot encloses the unlocking portion 72. That is, the unlocking portion 72 is a slotted block, which is formed by slotting the handle cap 7. The unlocking portion 72 and the cap body are an integral part, one end of the unlocking portion 72 is connected to the cap body, and the other end of the unlocking portion 72 is suspended. The unlocking portion 72 is a cantilever structure.

[0139] In some possible implementations, the inner wall of the outer sleeve 51 is provided with a limiting groove 512 and a clamping groove 513, the main block 521 of the inner slider 52 is provided with a positioning block 5212, the extension body 522 is provided with a second clamping claw 5223, the positioning block 5212 is embedded in the limiting groove 512, and the second clamping claw 5223 is clamped in the clamping groove 513. The outer sleeve and the inner slider 52 are clamped and limited, and the two can only move synchronously along the handle 1. The second clamping claw 5223 is located between the first clamping claw 5222 and the main block 521, and does not affect the clamping cooperation between the first clamping claw 5222 and the handle cap 7.

[0140] Embodiment 7

[0141] See also Figure 32 to Figure 36As shown, the embodiment of the present application provides a fourth suturing nail device of a tissue suturing system, which includes: a handle 1, a handle cap 7, an elastic tube 2, a cable 4 and a slip ring 5, the handle cap 7 is rotatably connected to one end of the handle 1, a rotation drive assembly 73 is arranged on the handle cap 7, the rotation drive assembly 73 is transmission-connected to the handle 1, the rotation drive assembly 73 includes an indicator block 732, one end of the elastic tube 2 is connected to the handle 1, the cable 4 is slidably arranged in the elastic tube 2, one end of the cable 4 is connected to the suturing nail assembly 300, the slip ring 5 is slidably arranged on the handle 1, the slip ring 5 is transmission-connected to the other end of the cable 4, the handle 1 and the slip ring 5 can rotate synchronously, when the handle 1 and the slip ring 5 rotate around the handle cap 7, the slip ring 5 can drive the suturing nail assembly 300 to rotate through the cable 4, so that the suturing nail assembly 300 can be screwed into the human tissue, and the handle 1 can drive the indicator block 732 of the rotation drive assembly 73 to move along the length direction of the handle 1. The more the handle 1 rotates, the longer the indicator block 732 moves, and the distance the indicator block 732 moves represents the depth of the suture nail assembly 300 implanted into the tissue. This facilitates the surgeon to grasp the depth of the suture nail assembly 300 implanted into the human tissue, and assists the surgeon to complete the operation accurately and efficiently.

[0142] In some possible implementations, see Fig.33 and Fig.34 As shown, the handle cap 7 has a cap cavity 75 and a guide groove 74 connected to the cap cavity 75, the rotation drive assembly 73 includes a rotation linkage 731, the rotation linkage 731 is rotatably arranged in the cap cavity 75, the rotation linkage 731 has an external thread, the indicator block 732 is slidably arranged in the guide groove 74, and the indicator block 732 is threadedly connected to the rotation linkage 731, one end of the handle 1 extends into the cap cavity 75, and is in transmission cooperation with the rotation linkage 731, and the handle 1 and the rotation linkage 731 can rotate synchronously. In the embodiment of the present application, the rotation drive assembly 73 adopts a nut and screw matching structure, and the handle 1 drives the rotation linkage 731 to rotate, so that the indicator block 732 can be translated along the length direction of the rotation linkage 731.

[0143] The inner wall of the handle cap 7 is provided with a guide rib 70, which extends along the circumference of the handle cap 7. An annular groove 122 is provided at one end of the handle 1, which extends along the circumference of the handle 1. When the handle cap 7 is sleeved on the handle 1, the guide rib 70 is embedded in the annular groove 122. The guide rib 70 is not a closed ring. A plurality of guide ribs 70 can be provided on the inner wall of the handle cap 7. Each guide rib 70 is sequentially arranged along the circumference of the handle cap 7. There is a disconnection area between adjacent guide ribs 70, so that the end of the handle 1 can be plugged into the handle cap. The handle cap 7 is a plastic structure with a certain deformation ability. Each guide rib 70 is not a closed ring. Under sufficient external force, the end of the handle 1 can be plugged into the handle cap 7 by slight deformation, so that the guide rib 70 is stuck in the annular groove 122.

[0144] In some possible embodiments, the handle cap 7 has a support groove 76, which is connected to the cap cavity 75, and the support groove 76 is located on the side of the cap cavity 75 away from the handle 1. The rotating linkage 731 includes a screw portion 7311 and a rotating shaft 7312 and a linkage shaft 7313 respectively arranged at both ends of the screw. The screw portion 7311 is located in the cap cavity 75, the indicator block 732 is threadedly connected to the screw, the rotating shaft 7312 is connected to the support groove 76, and the linkage shaft 7313 and the handle 1 are matched in transmission, so that both ends of the rotating shaft 7312 can be effectively supported.

[0145] In some possible implementations, a limiting slot 121 is provided at the end of the handle 1, and the linkage shaft 7313 is inserted into the limiting slot 121, and the linkage shaft 7313 rotates synchronously with the handle 1. The limiting slot 121 is not a round hole, and the cross section of the linkage shaft 7313 is not a circle. When the linkage shaft 7313 is inserted into the limiting slot 121, the linkage shaft 7313 cannot rotate relative to the handle 1.

[0146] In some possible embodiments, an outwardly expanding inclined surface is provided at one end of the mouth of the handle 1 located at the limiting slot 121 and / or a narrowing inclined surface is provided at one end of the linkage shaft 7313 away from the rotating shaft 7312, so that the linkage shaft 7313 can be smoothly inserted into the limiting slot 121 of the handle 1.

[0147] In some possible implementation schemes, the indicator block 732 has a main body section 7321 and an indicator section 7322, the thickness of the main body section 7321 is greater than that of the indicator section 7322, a through thread groove 7323 is provided on the thickness end face of the main body section 7321, the main body section 7321 is located in the cap cavity 75, and is threadedly connected to the rotating linkage 731 through the thread groove 7323, one end of the indicator section 7322 is connected to the main body section 7321, and the other end of the indicator section 7322 extends to the guide groove 74.

[0148] The main body section 7321 is large in size, which facilitates the setting of the thread groove 7323 . The indicating section 7322 can be a gradually narrowing structure to reduce the volume, avoid friction interference with the guide groove 74 , and can move smoothly along the guide groove 74 .

[0149] In some possible embodiments, the cap cavity 75 has two opposite limiting inner walls, which are located on both sides of the main body segment 7321 along the thickness direction, limiting the rotation of the main body segment 7321 around the rotating linkage 731, so that the main body segment 7321 can only move under the drive of the screw portion 7311, and will not rotate with the screw portion 7311.

[0150] In some possible implementations, a scale marking portion (not shown) is provided on the handle cap 7, and the scale marking portion is provided along the length direction of the guide groove 74. The provision of the scale marking portion can facilitate the operator to quickly know the implantation depth of the suture nail assembly 300, and assist the operator to perform accurate and efficient surgical operations.

[0151] In some possible embodiments, the depth-controllable suture staple device includes a pull cable 4 and a slip ring 5, wherein the slip ring 5 is slidably disposed on the handle 1, the rotary linkage 731 has a through slot, the pull cable 4 is disposed through the through slot, and the pull cable 4 is connected to the slip ring 5. When the slip ring 5 slides along the handle 1, the pull cable 4 can slide along the through slot of the rotary linkage 731. When the handle 1 and the slip ring 5 rotate synchronously, the handle 1 drives the rotary linkage 731 to rotate, and the slip ring 5 drives the pull cable 4 to rotate synchronously with the handle.

[0152] Embodiment 8

[0153] See also Figures 37 to 43As shown, the tissue suturing system also includes a thread cutting assembly for cutting the suture 500. It includes: a thread fixing mechanism, a thread cutting mechanism 430 and a driving wire 440. The thread fixing mechanism includes a first thread fixing member 410 and a second thread fixing member 420, the first thread fixing member 410 has a through suture groove 411, the second thread fixing member 420 can be connected to the first thread fixing member 410 to close the mouth of the suture groove 411, and the thread cutting mechanism 430 includes an inner cylinder member 431 and an outer cylinder member 432, the inner cylinder member 431 can be sleeved on the first thread fixing member 410, the inner cylinder member 431 has a first thread cutting opening 43111 and two thread holes 43131, the outer cylinder member 432 is sleeved on the outside of the inner cylinder member 431, and the outer cylinder member 432 has a second thread cutting opening 4321. The driving wire 440 has two filaments 441, one end of the two filaments 441 is used to connect the pulling end, the other ends of the two filaments 441 are connected, the two filaments 441 are inserted into the outer cylinder 432 and the inner cylinder 431, and the two filaments 441 are respectively inserted into the two wire holes 43131. The wire cutting assembly 400 has a pre-cutting state and a post-cutting state. In the pre-cutting state, as shown in FIG. Fig.39 As shown, the two filaments 441 pass through the suture groove 411 and are limited to the second thread fixing member 420. In the cut state, as shown in FIG. Fig.41 and Fig.42 As shown, the two filaments 441 are separated from the second thread fixing member 420 and are confined to the two thread holes 43131 of the inner cylinder member 431 .

[0154] In the pre-cut state, see Fig.38 and Fig.39 As shown, the first thread fixing member 410 and the second thread fixing member 420 are separated, and the guide wire 600 passes through the mouth of the suture groove 411, the first thread cutting port 43111 and the second thread cutting port 4321 in sequence, and the suture 500 is inserted into the guide wire. Finally, the guide wire 600 is taken out, and the suture 500 passes through the mouth of the suture groove 411, the first thread cutting port 43111 and the second thread cutting port 4321 in sequence. When it is necessary to cut the suture 500, the operator pulls the driving wire 440, and the driving wire 440 first drives the second thread fixing member 420 to move to the first thread fixing member 410, so that the first thread fixing member 410 and the second thread fixing member 420 are connected and fixed, and the suture 500 is clamped and fixed, as shown in FIG. Fig.40 Continue pulling the drive wire 440, as shown. Fig.41 and 42As shown, the driving wire 440 will be separated from the second thread fixing member and limited to the two thread holes 43131 of the inner cylinder 431. Because the two filament ends of the driving wire 440 are connected and fixed, they will not be easily separated from the inner cylinder 431. Under the driving action of the driving wire 440, the inner cylinder 431 slides relative to the outer cylinder 432, and the first cutting opening 43111 and the second cutting opening 4321 cooperate to cut the suture. At this time, the thread fixing mechanism is left inside the human body with the suture 500. The outer cylinder 432 is connected and fixed to the elastic tube 2 of the thread cutting device, while the inner cylinder 431 and the outer cylinder 432 are clearance fit. After cutting the suture 500, the operator removes the elastic tube 2 from the forceps channel of the endoscope to complete the operation.

[0155] Two thread holes 43131 are set on the inner cylinder 431 of the thread cutting assembly 400 of the present application, and the driving wire 440 passes through the two thread holes 43131. During the process of cutting the suture 500, the filament 441 is limited on the two limiting holes and will not separate from the inner cylinder 431, so the reliability is high and the product quality stability is good.

[0156] In some possible implementations, the inner cylinder 431 includes a cylinder, and two thread holes 43131 may be directly provided on the cylinder, or the inner cylinder 431 may further include a stopper 4313, the cylinder has a cylinder cavity, the stopper 4313 is accommodated in the cylinder cavity, the cylinder restricts the stopper 4313 from being separated from the cylinder cavity, and the stopper 4313 is provided with two thread holes 43131. The two filaments 441 are provided in the cylinder cavity and pass through the corresponding thread holes 43131 respectively.

[0157] Combination Fig.39 As shown, the cylinder includes a cylinder wall 4311, one end of the cylinder wall 4311 is open, and the other end is provided with an end plate 4312, the open end of the cylinder wall 4311 can be sleeved on the first wire fixing member 410, the end plate 4312 is provided with a through hole 43121, and the two filaments 441 respectively pass through the through holes 43121 on the end plate 4312, after the driving wire 440 is separated from the second wire fixing member 420, it can drive the limiting member 4313 to move, so that the limiting member 4313 can fit the end plate 4312, so as to continue to pull the inner cylinder member 431.

[0158] In some possible implementations, see Fig.43 As shown, the limiting member 4313 is in sheet shape, and the line hole 43131 penetrates the limiting member 4313 along the thickness direction of the limiting member 4313 .

[0159] The stopper 4313 may be a disc, and the outer diameter of the stopper 4313 is smaller than the inner diameter of the cylinder wall 4311 and larger than the through hole 43121 on the end plate 4312. The stopper 4313 will not be separated from the cylinder through the through hole 43121.

[0160] The two long filaments 441 are an integral piece. The long filaments 441 pass through the two thread holes 43131 in sequence to form a double-filament structure.

[0161] The second wire fixing member 420 has a limiting groove 421, the driving wire 440 is bent to form an elbow 442, and the two sides of the elbow 442 are respectively provided with two long filaments 441, and the two long filaments 441 both penetrate the limiting groove 421, and the elbow 442 is limited to the notch of the limiting groove 421. The elbow 442 is limited to the notch of the limiting groove 421, and when the pulling force of the driving wire 440 is large enough, the elbow 442 of the driving wire 440 will be separated from the limiting groove 421.

[0162] In some possible implementations, the second wire fixing member 420 has a receiving groove 422 connected to the limiting groove 421, the limiting groove 421 and the receiving groove 422 cooperate to pass through the second wire fixing member 420, the inner diameter of the receiving groove 422 is larger than the inner diameter of the limiting groove 421, and the elbow 442 is accommodated in the receiving groove 422.

[0163] The wire cutting assembly 400 includes a plug 423 detachably connected to the second wire fixing member 420 to cover or open the notch of the accommodating groove 422 .

[0164] The embodiment of the present application also provides a wire cutting device, including: a handle 1, an elastic tube 2 and the above-mentioned wire cutting assembly 400. One end of the elastic tube 2 is connected to the handle 1, the outer cylinder 432 of the wire cutting assembly 400 is connected to the other end of the elastic tube 2, the cable is slidably inserted into the elastic tube 2, one end of the cable is transmission-connected to the driving wire 440, the slip ring 5 is slidably arranged on the handle 1, and the slip ring 5 is transmission-connected to the other end of the cable 4. The operator slides the slip ring 5 so that the slip ring 5 moves along the handle 1, thereby driving the driving wire 440 to move and perform a shearing action.

[0165] Embodiment 9

[0166] Embodiment 3 of the present application provides a staple replacement method for a tissue suturing system, comprising:

[0167] Step S1, operating the suture staple device so that the releaser 8 extends out of the elastic tube 2;

[0168] In this step, by sliding the slip ring 5 toward one side of the elastic tube 2 of the suturing staple device, the pull cable 4 can push the releaser 8 out of the elastic tube 2, which is convenient for the subsequent staple replacement operation.

[0169] Step S2, see Figure 6 and Figure 7As shown, the staple changing device 200 equipped with the staple assembly 300 is held, and the position of the staple changing device 200 is adjusted so that the connecting tube 320 of the staple assembly 300 is sleeved on the releaser 8;

[0170] Step S3, see Figure 8 and Fig. 9 As shown, the suture 500 is inserted along the threading cavity 213 on the staple changing device 200, so that the suture 500 passes through the suture fixing hole 331 of the staple assembly 300;

[0171] Step S4, see Fig.10 As shown, the gripping end of the clamping member 210 is pinched so that the gripping ends of the two clamping members 210 are separated to release the staple assembly 300 .

[0172] Optionally, the releaser 8 has an external convex rib 81, and the inner wall of the connecting tube 320 is provided with an internal convex rib 321;

[0173] In step S2 , under the action of external force, the connecting tube 320 moves along the releaser 8 , so that the inner convex rib 321 of the connecting tube 320 is engaged with the outer convex rib 81 of the releaser 8 close to the side of the elastic tube 2 .

[0174] Alternatively, see Figure 6 As shown, in step S2, the clamping ends of the two clamping members 210 of the staple changing device 200 are pinched so that the clamping members 210 keep clamping the suture staple assembly 300 to prevent the suture staple assembly 300 from being unstable and shaking on the staple changing device 200 during the installation of the suture staple assembly 300.

[0175] Optionally, the suturing nail device comprises a handle 1, a cable 4 and a slip ring 5, one end of an elastic tube 2 is connected to the handle 1, the cable is slidably arranged in the elastic tube 2, one end of the cable 4 is connected to a releaser 8, the slip ring 5 is slidably arranged on the handle 1, and the slip ring 5 is transmission-connected to the other end of the cable 4;

[0176] In step S1 , the slip ring 5 is pushed toward one side of the elastic tube 2 , so that the releaser 8 extends out of the elastic tube 2 .

[0177] Optionally, in step S1, when the slip ring 5 is adjusted so that the releaser 8 extends out of the elastic tube 2, the slip ring 5 can be locked on the handle 1 through the locking mechanism. At this time, the releaser 8 remains extended out of the elastic tube 2, and the operator does not need to keep hooking the slip ring 5 to prevent it from moving back and forth. The operator can easily assemble the new suture staple assembly 300 to the releaser 8, the fatigue strength of the operating fingers is reduced, the operating efficiency is improved, and the progress of the operation is accelerated.

[0178] Embodiment 10

[0179] Embodiment 10 of the present application provides an operating method of a tissue suturing system, including:

[0180] Step S100, operating the suture staple device so that the suture staple assembly 300 installed at the end of the suture staple device is located at the target position of the soft tissue;

[0181] In this step, the elastic tube 2 of the suture staple device is slid along the clamp channel of the endoscope so that the suture staple assembly at the end is moved to the target tissue position.

[0182] Step S200, rotating the handle 1 of the suture staple device so that the suture staple assembly 300 is anchored on the soft tissue;

[0183] By rotating the handle 1, the slip ring 5 and the pull cable 4 will rotate synchronously, thereby driving the suture staple assembly to rotate, so that the suture staple assembly is rotated into the tissue.

[0184] In this step, the operator can pay attention to the indicator block 732. The depth of the suture staple assembly implanted in the tissue can be determined based on the distance or position of the indicator block 732. When the suture staple assembly is implanted in the tissue to a sufficient depth, the operator can stop rotating the handle 1.

[0185] Step S300, moving the slip ring 5 to the side away from the handle cap 7, driving the releaser 8 at the end of the cable 4 to retract into the elastic tube 2, so that the suture staple assembly 300 is separated from the releaser 8;

[0186] In this step, the outer diameter of the suture staple assembly 300 is larger than the elastic tube 2 , and when the releaser 8 is retracted into the elastic tube 2 , the suture staple assembly 300 will naturally fall off and separate from the releaser 8 .

[0187] Step S400, determining whether nailing is completed, if the determination result is yes, proceeding to step S600, otherwise proceeding to step S500;

[0188] Step S500, installing a new staple assembly 300 on the staple device, and proceeding to step S100;

[0189] Step S600: cutting the suture 500.

[0190] Step S500 includes:

[0191] Step S510: moving the slip ring 5 of the suture nail device toward the side of the handle cap 7 so that the releaser 8 at the end of the cable 4 extends out of the elastic tube 2, and the locking mechanism on the suture nail device locks the slip ring 5 so that the releaser 8 remains extended out of the elastic tube 2;

[0192] In this step, by sliding the slip ring 5 toward one side of the elastic tube 2, the pull cable 4 can push the releaser 8 out of the elastic tube 2, which is convenient for the subsequent nail replacement operation. When the slip ring 5 is adjusted to make the releaser 8 extend out of the elastic tube 2, the slip ring 5 can be locked on the handle 1 through the locking mechanism. At this time, the releaser 8 remains extended out of the elastic tube 2, and the operator does not need to keep hooking the slip ring 5 to prevent it from moving back and forth. The operator can easily assemble the new suture nail assembly 300 on the releaser 8, the fatigue strength of the operating fingers is reduced, the operating efficiency is improved, and the progress of the operation is accelerated.

[0193] Step S520: holding the staple changing device 200 equipped with the staple assembly 300, and adjusting the position of the staple changing device 200 so that the staple assembly 300 is connected to the releaser 8;

[0194] In this step, the clamping ends of the two clamping members 210 of the staple changing device 200 are pinched so that the clamping members 210 keep clamping the suture staple assembly 300 to prevent the suture staple assembly 300 from being unstable and shaking on the staple changing device 200 during the installation of the suture staple assembly 300.

[0195] Step S530, inserting the suture thread along the threading cavity 213 on the staple changing device 200, so that the suture thread passes through the suture 500 fixing hole 331 of the staple assembly 300;

[0196] Step S540: pinch the holding ends of the clamping members 210 to separate the holding ends of the two clamping members 210 to release the staple assembly 300, thereby completing the installation of the staple assembly.

[0197] In step S600, before cutting the suture 500, the first thread fixing member 410 and the second thread fixing member 420 are separated, the guide wire 600 passes through the mouth of the suture groove 411, the first thread cutting port 43111 and the second thread cutting port 4321 in sequence, the suture 500 is inserted into the guide wire 600, and finally the guide wire 600 is taken out, and the suture 500 passes through the mouth of the suture groove 411, the first thread cutting port 43111 and the second thread cutting port 4321 in sequence. When it is necessary to cut the suture 500, the operator pulls the driving wire 440, and the driving wire 440 first drives the second thread fixing member 420 to move to the first thread fixing member 410, so that the first thread fixing member 410 and the second thread fixing member 420 are connected and fixed, and the suture 500 is clamped and fixed. Continue to pull the driving wire 440, the driving wire 440 will be separated from the second thread fixing member, and limited to the two thread holes 43131 of the inner cylinder 431, so the two filament ends of the driving wire 440 are connected and fixed, and therefore, will not easily separate from the inner cylinder 431. Under the driving action of the driving wire 440, the inner cylinder 431 slides relative to the outer cylinder 432, and the first cutting port 43111 and the second cutting port 4321 cooperate to cut the suture. At this time, the thread fixing mechanism is left inside the human body with the suture 500. The outer cylinder 432 is connected and fixed to the elastic tube 2 of the cutting assembly 400, and the inner cylinder 431 and the outer cylinder 432 are clearance fit. After cutting the suture 500, the operator removes the elastic tube 2 from the forceps channel of the endoscope to complete the operation.

[0198] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0199] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0200] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A nail changing device, characterized in that: include: Two clamping members, the two clamping members are rotatably connected, the clamping members are located at two sides of the rotation axis and are respectively a clamping end and a pinching end, the clamping end has a receiving groove, a limiting groove and a threading groove, the limiting groove is located at the end of the clamping end and is connected to the receiving groove; An elastic member, wherein the elastic member is disposed between the two clamping members. Under the action of the elastic member, the clamping ends of the two clamping members fit together, the accommodating grooves of the two clamping ends are connected to form an accommodating cavity, the limiting grooves of the two clamping ends are connected to form a limiting cavity, and the threading grooves of the two clamping ends are connected to form a threading cavity; When the spring section of the suture nail assembly is placed in the accommodating cavity, the suture fixing part of the suture nail assembly is limited in the limiting cavity, and the threading cavity is connected to the suture fixing hole of the suture fixing part; When an external force is applied to the gripping end, the gripping ends of the two gripping members are separated to release the suture staple assembly; Wherein, the limiting cavity includes two first limiting surfaces and one second limiting surface; The two first limiting surfaces extend along the length direction of the accommodating groove, a gap is provided between the two first limiting surfaces, the second limiting surface is located on a side of the first limiting surface close to the holding end, and the second limiting surface vertically connects the two first limiting surfaces; When the suture fixing part is limited in the limiting cavity, the two first limiting surfaces are limited in two sides of the suture fixing part along the circumference of the nail changing device to limit the rotation of the suture fixing part, and the second limiting surface is limited in one side of the suture fixing part close to the holding end to limit the movement of the suture fixing part toward the holding end; Wherein, the threading cavity comprises a first opening located on the outer surfaces of the two clamping members and a second opening located on the second limiting surface of the limiting cavity, and when the suture fixing part of the suture staple assembly is limited in the limiting cavity, the second opening is connected to the suture fixing hole of the suture fixing part; In a direction from the first opening to the second opening, a cross-sectional area of ​​the threading cavity gradually decreases.

2. The nail changing device according to claim 1, characterized in that: Including rotating shaft; The clamping member has a hinged seat; The rotating shafts are respectively arranged through the hinge seats of the two clamping parts; The elastic member is a torsion spring, the spiral section of the torsion spring is sleeved on the rotating shaft, and the two torsion arms of the torsion spring are respectively pressed against the two clamping members.

3. A tissue suturing system, characterized in that: include: A staple device having an elastic tube and a releaser slidably disposed at an end of the elastic tube; The staple changing device according to claim 1 or 2, wherein the staple changing device is used to clamp the spring segment of the staple assembly so that the connecting tube of the staple assembly is exposed to be sleeved on the releaser.

4. A staple replacement method for a tissue suturing system according to claim 3, characterized in that: include: Step S1, operating the suture staple device so that the releaser extends out of the elastic tube; Step S2, holding the staple changing device equipped with the staple assembly, and adjusting the position of the staple changing device so that the connecting tube of the staple assembly is sleeved on the releaser; Step S3, inserting the suture along the threading cavity on the staple changing device, so that the suture passes through the suture fixing hole of the suture staple assembly; Step S4: pinching the holding ends of the clamping members to separate the holding ends of the two clamping members to release the suture staple assembly.

5. The staple replacement method of the tissue suturing system according to claim 4, characterized in that: The releaser has an outer convex rib, and the inner wall of the connecting tube is provided with an inner convex rib; In step S2, under the action of external force, the connecting tube moves along the releaser, so that the inner convex rib of the connecting tube is clamped with the outer convex rib of the releaser close to the side of the elastic tube.

6. The staple replacement method of the tissue suturing system according to claim 4, characterized in that: In step S2, the clamping ends of the two clamping members of the staple changing device are pinched so that the clamping members keep clamping the suture staple assembly.

7. The staple replacement method of the tissue suturing system according to claim 4, characterized in that: The suture nail device comprises a handle, a cable and a slip ring, one end of an elastic tube is connected to the handle, the cable is slidably arranged in the elastic tube, one end of the cable is connected to a releaser, the slip ring is slidably arranged on the handle, and the slip ring is transmission-connected to the other end of the cable; In step S1, the slip ring is pushed toward one side of the elastic tube so that the releaser extends out of the elastic tube.

8. The staple replacement method of the tissue suturing system according to claim 7, characterized in that: In step S1, when the slip ring is adjusted so that the releaser extends out of the elastic tube, the slip ring is locked on the handle through a locking mechanism.

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