Endoscopic suture device with wire staple

Abstract

The application provides an endoscopic suture device, which comprises a fixing frame, a plurality of suture nails, a pushing member and a suture thread. The fixing frame comprises a frame body and a mounting pipe, and a first clamping part is arranged at the end of the mounting pipe away from the frame body. The plurality of suture nails are sequentially stacked on the outer surface of the mounting pipe. The endoscopic suture device provided by the application is characterized in that the plurality of suture nails are sequentially stacked on the outer surface of the mounting pipe, the plurality of suture nails are sequentially pushed out of the mounting pipe by the pushing member, and the plurality of suture nails are sequentially rotated and anchored in the corresponding human tissues. The plurality of suture nails are tightened by the suture thread, the human tissues around the wound are driven by the plurality of suture nails to suture the wound, the endoscopic suture device can suture the wound surface after entering the human body once, the suture efficiency of the wound surface is improved, and in addition, the endoscopic suture device has a simple structure and is convenient to operate, so that the use comfort of the endoscopic suture device is improved.

Description

Technical Field

[0001] This application relates to the field of interventional medical device technology, and in particular to an endoscopic suture device. Background Technology

[0002] Endoscopic minimally invasive surgery is characterized by high efficiency and precision, good surgical results and rapid recovery, minimal trauma to patients, and the elimination of the need for abdominal incision. During minimally invasive surgery, wound suturing is a common and challenging aspect. Endoscopic wound suturing instruments have limitations; there is a lack of instruments that can close the wound with sutures like those used in open surgery. Existing techniques are inefficient, requiring repeated installation and removal of suture devices instead of continuous suturing in a single procedure. Furthermore, the repeated installation and removal of sharp suture devices by the surgeon poses medical risks. Summary of the Invention

[0003] The purpose of this application is to provide an endoscopic suture device that is simple to operate and has high suturing efficiency.

[0004] To achieve the above objectives, this application provides an endoscopic suture device, comprising: a fixing frame, the fixing frame including a frame body and an installation tube, wherein a first locking portion is provided at one end of the installation tube away from the frame body; a plurality of suture pins, the plurality of suture pins being stacked sequentially on the outer surface of the installation tube, each of the suture pins being provided with a first locking structure that cooperates with the first locking portion, the installation tube being capable of driving the suture pins to rotate; a pushing member, the pushing member being sleeved on the installation tube and capable of moving along the axial direction of the installation tube, the pushing member pressing against the suture pins, and when a first preset condition is met, the pushing member being capable of disengaging the first locking structure from the first locking portion, thereby disengaging the suture pins from the installation tube; and a suture thread, the suture thread being connected to the plurality of suture pins, and the suture thread being fixedly connected to one of the suture pins located adjacent to the first locking portion, the other suture pins being capable of sliding on the suture thread.

[0005] The endoscopic suture device described above further includes: a cutting and locking device, wherein the suture passes through the plurality of suture staples and then into the cutting and locking device; wherein the cutting and locking device includes: a mounting frame, the mounting frame including a frame body, a handle, and a pressure tube, the pressure tube having a first suture hole for the suture to pass through; a traction member, the traction member including a moving part and a traction part, the moving part being disposed on the frame body and capable of driving the traction part to move axially along the pressure tube; a fixing shell, the fixing shell abutting against the end of the pressure tube away from the frame body, the fixing shell having a first suture hole for the suture to pass through, the traction part passing through the suture staples in sequence. The frame body and the pressure tube extend into the fixed shell; a cutting shell is disposed within the fixed shell, and the cutting shell is provided with a cutting hole and a limiting hole, the second locking part of the traction part passes through the limiting hole and can interfere with the cutting shell, the suture passes through the cutting hole, the cutting hole is correspondingly disposed and connected to the first thread hole; and a pressing member is disposed within the fixed shell and located between the cutting shell and the suture nail, the traction part passes through the pressing member, the pressing member is provided with a second locking structure that cooperates with the second locking part of the traction part, and when a second preset condition is met, the second locking part can be disengaged from the second locking structure.

[0006] As described above, in the endoscopic suture device, the extrusion member has a through hole; the traction part passes through the through hole, and the second snap-fit ​​part can interfere with the extrusion member; slits are respectively provided on the sidewalls opposite to the through hole; the second snap-fit ​​structure includes the slits and the through hole.

[0007] As described above, in the endoscopic suture device, the suture pin includes a base and a spiral needle. The spiral needle is disposed on one end of the base, and the first snap-fit ​​structure is disposed on the other end of the base. The base is sleeved on the mounting tube.

[0008] As described above, the endoscopic suture device further includes a threading part, which is sleeved on the substrate and has a second thread hole for the suture to pass through.

[0009] In the endoscopic suture device described above, the suture threading part is rotatably mounted on the base.

[0010] As described above, in the endoscopic suture device, the mounting tube has a mounting channel through which the suture passes and is fixedly connected to a suture pin disposed adjacent to the first snap-fit ​​portion.

[0011] As described above, in the endoscopic suture device, the outer surface of the mounting tube is provided with an external thread, and the pusher is provided with an internal thread, wherein the internal thread is screwed into the external thread.

[0012] As described above, in the endoscopic suture device, the pushing member includes: a rotating part screwed onto the mounting tube, the rotating part having a pushing part; and a pushing tube disposed on the mounting tube, the pushing part pressing against the pushing tube, and the pushing tube pressing against the suture staple.

[0013] The endoscopic suture device described above further includes a protective tube, which is sleeved on the outside of the suture pin and part of the pusher and the mounting tube forming an integral whole, and a first limiting structure is provided at one end of the protective tube adjacent to the fixing frame.

[0014] As described above, in the endoscopic suture device, the mounting tube includes a connecting part and a limiting part, the first snap-fit ​​part is disposed on the limiting part, the suture staple is sleeved on the limiting part, and the limiting part interferes with the suture staple.

[0015] In the endoscopic suture device described above, the shape formed by the hole wall of the suture pin is non-circular, and the hole wall of the suture pin is adapted to the outer surface of the limiting part.

[0016] In the endoscopic suture device described above, a second limiting structure is provided on the outer surface of the limiting part; and an interference structure that interferes with the second limiting structure is provided on the hole wall of the suture pin.

[0017] Compared with existing technologies, the above technical solution has the following advantages:

[0018] Multiple suture pins are installed on the outer surface of the installation tube. These suture pins are rotated and anchored to corresponding positions on the wound surface via a pusher and support frame. The suture pins are tightened by the sutures, and they drive the surrounding human tissue to suture the wound. This allows the endoscopic suture device to suture the wound in a single insertion, improving suturing efficiency. In addition, the endoscopic suture device has a simple structure and is easy to operate, thus improving user comfort and increasing the product's market competitiveness. Attached Figure Description

[0019] The following figures are intended only to illustrate and explain this application and do not limit the scope of this application. Wherein:

[0020] Figure 1This is an exploded structural diagram of the endoscopic suture device described in this application;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the endoscopic suture device described in this application;

[0022] Figure 3 yes Figure 2 A partial structural schematic diagram of the endoscopic suture device is shown.

[0023] Figure 4 This is a schematic diagram of the structure of the first embodiment of the suture staple described in this application;

[0024] Figure 5 This is a schematic diagram of the structure of the fixing frame described in this application;

[0025] Figure 6 This is a schematic diagram of the rotating part described in this application;

[0026] Figure 7 This is an exploded structural diagram of another embodiment of the endoscopic suture device described in this application;

[0027] Figure 8 This is a cross-sectional structural schematic diagram of another embodiment of the endoscopic suture device described in this application;

[0028] Figure 9 yes Figure 8 A partial structural schematic diagram of the endoscopic suture device is shown.

[0029] Figure 10 This is a schematic diagram of the structure of the second embodiment of the suture staple described in this application;

[0030] Figure 11 yes Figure 9 A cross-sectional view of the suture staple shown.

[0031] Figure 12 This is a schematic diagram of the structure of the cutting-off locking device described in this application;

[0032] Figure 13 yes Figure 12 A partial cross-sectional view of the cutting and locking device in the locked seam state;

[0033] Figure 14 yes Figure 12 A partially exploded view of the cut-off locking device;

[0034] Figure 15 yes Figure 12 A partial cross-sectional view of the cutting and locking device in the state of cutting the seam.

[0035] Figure 16 This is a partial cross-sectional view of the first embodiment of the pull member described in this application;

[0036] Figure 17 This is a partial cross-sectional view of the second embodiment of the pull member described in this application;

[0037] Figure 18 This is a partial cross-sectional view of the third embodiment of the pull member described in this application.

[0038] Explanation of icon numbers:

[0039] 10. Fixing frame; 11. Frame body; 12. Mounting tube; 121. Connecting part; 122. Limiting part; 13. First snap-fit ​​part; 14. Mounting channel; 15. External thread; 20. Seam staple; 21. First snap-fit ​​structure; 22. Base body; 23. Spiral needle; 24. Threading part; 25. Mounting groove; 30. Pushing component; 31. Internal thread; 32. Rotating part; 33. Pushing tube; 34. Pushing part; 40. Thread; 50. 51. Cut-off locking device; 511. Mounting frame; 512. Frame body; 513. Handle; 514. Pressing tube; 52. Traction component; 525. Moving part; 526. Traction part; 527. Second snap-fit ​​part; 53. Fixing shell; 538. First wire hole; 54. Cutting shell; 549. Cutting hole; 540. Limiting hole; 551. Extrusion component; 552. Through hole; 553. Cutting slit; 60. Protective tube; 61. First limiting structure. Detailed Implementation

[0040] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0041] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0042] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other. The following discussion provides multiple embodiments of this application. Although each embodiment represents a single combination of the application, different embodiments of this application can be substituted or combined; therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes A, B, and C, and another embodiment includes a combination of B and D, then this application should also be considered to include embodiments containing one or more other all other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text. Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figures 1 to 3 As shown, the endoscopic suture device provided in this application includes: a fixing frame 10, a plurality of suture pins 20, a pusher 30, and a suture 40.

[0044] The mounting bracket 10 includes a frame body 11 and a mounting tube 12. A first snap-fit ​​portion 13 is provided at one end of the mounting tube 12 away from the frame body 11. In a specific embodiment of this application, the first snap-fit ​​portion 13 is a limiting protrusion provided on the mounting tube 12.

[0045] Multiple suture pins 20 are stacked sequentially on the outer surface of the mounting tube 12. Each suture pin 20 is provided with a first snap-fit ​​structure 21 that mates with the first snap-fit ​​portion 13. The mounting tube 12 can drive the suture pins 20 to rotate. Figure 4 As shown, in a specific embodiment of this application, the suture 20 includes a base 22 and a spiral needle 23. The spiral needle 23 is disposed on one end of the base 22, and a first snap-fit ​​structure 21 is disposed on the other end of the base 22. The base 22 and the spiral needle 23 are sleeved on the mounting tube 12. The spiral needle 23 of one suture 20 presses against another suture 20, and the spiral needle 23 can be compressed, thereby reducing the space occupied by a single suture 20, and thus allowing more sutures 20 to be installed on the mounting tube 12. When the first suture 20 is dislodged from the mounting tube 12, the spiral needle 23 of the second suture 20 opens due to the loss of pressure from the first suture 20. The first snap-fit ​​structure 21 is a spring piece disposed on the suture 20, and the spring piece can interfere with the limiting protrusion.

[0046] The pusher 30 is sleeved on the mounting tube 12 and can move along the axial direction of the mounting tube 12. The pusher 30 presses against the suture nail 20. When the first preset condition is met, the pusher 30 can disengage the first snap-fit ​​structure 21 from the first snap-fit ​​part 13 so that the suture nail 20 is disengaged from the mounting tube 12.

[0047] The suture 40 is connected to a plurality of suture staples 20, and the suture 40 is fixedly connected to one suture staple 20 provided adjacent to the first snap-fit ​​portion 13, while the other suture staples 20 can slide on the suture 40.

[0048] The endoscopic suture device provided in this application has multiple suture staples 20 fitted on the outer surface of the installation tube 12. The multiple suture staples 20 are pushed out of the installation tube 12 in sequence by the pusher 30, and are rotated and drilled into and anchored in the corresponding human tissue one by one. The multiple suture staples 20 are tightened by the suture 40. The multiple suture staples 20 drive the human tissue around the wound to suture the wound. This enables the endoscopic suture device to suture the wound after entering the human body once, which improves the suturing efficiency. In addition, the endoscopic suture device has a simple structure and is easy to operate, thereby improving the user comfort of the endoscopic suture device and increasing the market competitiveness of the product.

[0049] The specific operation procedure of the endoscopic suture device is as follows:

[0050] After the endoscopic suture device enters the human body, the pusher 30 pushes the spiral needle 23 of the first suture 20 out of the mounting tube 12. When the spiral needle 23 is completely pushed out of the mounting tube 12, the first locking part 13 on the mounting tube 12 engages with the first locking structure 21, preventing the first suture 20 from falling off the mounting tube 12. Then, by rotating the fixing bracket 10, the suture 20 is rotated, causing the spiral needle 23 to screw into the human tissue at the first position. The spiral needle 23 is fully screwed in and anchored. After being inserted into human tissue, the user applies an external force to the pusher 30, causing the first locking portion 13 of the mounting tube 12 to break through the locking force between itself and the first locking structure 21 (i.e., satisfying the first preset condition), thereby causing the first locking structure 21 to detach from the first locking portion 13, thus detaching the first suture 20 from the mounting tube 12; then, the spiral needle 23 of the second suture 20 is pushed out of the mounting tube 12. When the spiral needle 23 is completely pushed out of the mounting tube 12, the first locking structure 21 on the mounting tube 12... Part 13 engages with the first engaging structure 21 to prevent the second suture 20 from falling off the mounting tube 12. Then, by rotating the fixing bracket 10, the suture 20 is rotated, causing the spiral needle 23 to screw into the human tissue at the second position. After the spiral needle 23 is fully screwed into and anchored in the human tissue, the user increases the external force applied to the pusher 30, causing the first engaging part 13 of the mounting tube 12 to break through the engaging force between it and the first engaging structure 21 (i.e., satisfying the first preset condition), thereby causing the first engaging structure 21 to fall off the first engaging part 13, so that the second suture 20 falls off the mounting tube 12. This process is repeated to anchor multiple sutures 20 at the corresponding fixing points of the human tissue. Then, the multiple sutures 20 are tightened by the suture 40, so that the multiple sutures 20 drive the human tissue around the wound to wrap the wound. After the multiple sutures 20 are tightened, the suture 40 is locked. Finally, the suture 40 is cut, so that the multiple sutures 20 drive the human tissue around the wound to suture the wound.

[0051] like Figure 3 As shown, in one embodiment of this application, the mounting tube 12 has a mounting channel 14 extending through it, the suture 40 passes through the mounting channel 14 and is fixedly connected to a suture pin 20 disposed adjacent to the first snap-fit ​​portion 13.

[0052] The suture 40 is located inside the mounting hole 14 of the staple 20. During the rotation and anchoring process of the staple 20, the suture 40 rotates inside the mounting tube 12 and will not get tangled or knotted and locked on the spiral needle head of the staple 20. This avoids the situation where the staple 20 cannot slide on the suture 40, thus ensuring that multiple staples 20 can be tightened smoothly through the suture 40 to achieve effective suturing of the wound.

[0053] like Figure 1 , Figure 5 and Figure 6As shown, in one embodiment of this application, an external thread 15 is provided on the outer surface of the mounting tube 12, and an internal thread 31 is provided on the pusher 30, the internal thread 31 being screwed into the external thread 15.

[0054] The pusher 30 rotates relative to the mounting tube 12, and moves along the mounting tube 12 via threads. The pressure between the first locking part 13 and the first locking structure 21 gradually increases. When the pressure between the first locking part 13 and the first locking structure 21 reaches the preset pressure, the second locking part 523 breaks through the first locking structure 21, thereby causing the first locking structure 21 to fall off the first locking part 13, so as to remove the suture nail 20 from the mounting tube 12. During the movement of the pusher 30, the pressure between the first locking part 13 and the first locking structure 21 gradually increases, thereby achieving the purpose of precisely controlling the pusher 30.

[0055] like Figure 1 As shown, in one embodiment of this application, the pusher 30 includes a rotating part 32 and a push tube 33.

[0056] The rotating part 32 is screwed onto the mounting tube 12, and the rotating part 32 has a pushing part 34.

[0057] The push tube 33 is installed on the mounting tube 12, the push part 34 presses against the push tube 33, and the push tube 33 presses against the sewing staple 20.

[0058] When it is necessary to apply external force to the suture nail 20 through the pusher 30, it is only necessary to rotate the rotating part 32. The rotating part 32 moves along the mounting tube 12 through the thread. The rotating part 32 presses against the pusher tube 33, and the pusher tube 33 presses against the suture nail 20, thereby gradually increasing the pressure between the first snap-fit ​​part 13 and the first snap-fit ​​structure 21. The above operation is simple and does not require rotating the entire pusher 30, which makes it convenient for the operator to operate the pusher 30, thereby improving the comfort of using the product.

[0059] like Figures 1 to 3 As shown, in one embodiment of this application, the endoscopic suture device further includes a protective tube 60.

[0060] The protective tube 60 is sleeved on the outside of the whole formed by the suture nail 20, part of the pusher 30 and the mounting tube 12, and a first limiting structure 61 is provided at one end of the protective tube 60 near the fixing frame 10.

[0061] On the one hand, it protects the suture staple 20, reducing the probability of damage during operation and ensuring its reliability. On the other hand, it prevents the suture staple 20 from scratching human tissue when the suture device is inserted under the endoscope. In addition, the first limiting structure 61 can be engaged in the endoscope channel, preventing the protective tube 60 from moving with the pusher 30 during the process of pushing the suture staple 20 out of the installation tube 12.

[0062] like Figure 5 As shown, in one embodiment of this application, the mounting tube 12 includes a connecting part 121 and a limiting part 122. A first snap-fit ​​part 13 is disposed on the limiting part 122, and a suture pin 20 is sleeved on the limiting part 122. The limiting part 122 and the suture pin 20 interfere with each other.

[0063] After the pusher 30 completely pushes the spiral needle 23 of the suture staple 20 out of the mounting tube 12, the user rotates the fixing frame 10. Due to the interference between the suture staple 20 and the limiting part 122, the fixing frame 10 drives the suture staple 20 to rotate, thereby causing the spiral needle 23 to be screwed into the corresponding human tissue. The above-mentioned operation of rotating the suture staple 20 is simple and convenient, ensuring the comfort of using the product and thus increasing the product's market competitiveness.

[0064] like Figure 5 As shown, in one embodiment of this application, the shape formed by the hole wall of the suture pin 20 is non-circular, and the hole wall of the suture pin 20 is adapted to the outer surface of the limiting part 122.

[0065] After the pusher 30 completely pushes the spiral needle 23 of the suture staple 20 out of the mounting tube 12, the user rotates the fixing frame 10. Due to the interference between the hole wall of the suture staple 20 and the outer surface of the limiting part 122, the fixing frame 10 drives the suture staple 20 to rotate, thereby causing the spiral needle 23 to be screwed into the corresponding human tissue. The above-mentioned operation of rotating the suture staple 20 is simple and convenient, ensuring the comfort of using the product and thus increasing the product's market competitiveness.

[0066] In one embodiment of this application, a second limiting structure is provided on the outer surface of the limiting part; an interference structure that interferes with the second limiting structure is provided on the hole wall of the suture staple.

[0067] After the pusher fully ejects the spiral needle tip of the suture pin from the mounting tube, the user rotates the fixing frame. Due to the interference between the interference structure and the second limiting joint, the fixing frame drives the suture pin to rotate, thereby causing the spiral needle tip to screw into the corresponding position of the human tissue. This suture pin rotation operation is simple and convenient, ensuring the comfort of the product and thus increasing its market competitiveness. The second limiting joint and the interference structure are protrusions and grooves.

[0068] like Figures 7 to 10 As shown, in one embodiment of this application, the suture staple 20 further includes a threading portion 24.

[0069] The thread-passing part 24 is fitted onto the base 22, and the thread-passing part 24 is provided with a second thread hole for passing through the sewing thread 40.

[0070] The threading part 24 provides a fixed position for the suture 40, which avoids the situation where the fixed position of the suture 40 is set on the base 22, resulting in a low overall strength of the base 22. This ensures the overall mechanical strength of the suture staple 20, thereby ensuring the reliability of the suture staple 20 and increasing the market competitiveness of the product.

[0071] like Figure 10 and Figure 11 As shown, in a specific embodiment of this application, an annular mounting groove 25 is provided on the outer surface of the substrate 22, and the wire thread 24 is sleeved in the mounting groove 25. The depth of the mounting groove 25 gradually increases along the direction from both ends of the substrate 22 toward the middle of the substrate 22.

[0072] like Figure 10 and Figure 11 As shown, in one embodiment of this application, the threading portion 24 is rotatably mounted on the base 22.

[0073] During the rotation and anchoring of the staple 20, the suture 40 can rotate relative to the base 22 through the threading part 24. The suture 40 will not get tangled or knotted and locked on the base 22 and the spiral needle head, thus avoiding the situation where the staple 20 cannot slide on the suture 40. This ensures that multiple staples 20 can be tightened smoothly through the suture 40 to achieve effective suturing of the wound.

[0074] like Figures 12 to 15 As shown, in one embodiment of this application, the endoscopic suture device further includes a cutting and locking device 50, wherein the suture 40 passes through the plurality of suture staples 20 and then enters the cutting and locking device 50.

[0075] The cutting and locking device 50 includes: a mounting bracket 51, a traction member 52, a fixing shell 53, a cutting shell 54, and a pressing member 55.

[0076] The mounting bracket 51 includes a bracket body 511, a handle 512, and a pressure tube 513, the pressure tube 513 being provided with a first thread hole 531 for passing through the sewing thread 40.

[0077] The traction member 52 includes a moving part 521 and a traction part 522. The moving part 521 is mounted on the frame body 511 and can drive the traction part 522 to move axially along the pressure tube 513.

[0078] The fixed shell 53 abuts against the end of the pressure tube 513 away from the frame body 511. The fixed shell 53 is provided with a first thread hole 531 for the thread 40 to pass through. The traction part 522 passes through the frame body 511 and the pressure tube 513 in sequence and extends into the fixed shell 53.

[0079] The cutting shell 54 is disposed inside the fixed shell 53. The cutting shell 54 is provided with a cutting hole 541 and a limiting hole 542. The second snap-fit ​​part 523 of the traction part 522 passes through the limiting hole 542 and can interfere with the cutting shell 54. The sewing thread 40 passes through the cutting hole 541. The cutting hole 541 is correspondingly disposed and connected to the first thread hole 531.

[0080] The extrusion member 55 is disposed inside the fixed shell 53 and located between the cutting shell 54 and the stitching nail 20. The traction part 522 passes through the extrusion member 55. The extrusion member 55 is provided with a second snap-fit ​​structure that cooperates with the second snap-fit ​​part 523 of the traction part 522. When the second preset condition is met, the second snap-fit ​​part 523 can be disengaged from the second snap-fit ​​structure.

[0081] After the multiple suture staples 20 are anchored in the corresponding human tissue positions, the tightening suture 40 tightens the multiple suture staples 20, and the multiple suture staples 20 drive the human tissue around the wound to wrap around the wound, such as... Figure 13 As shown, the traction member 52 is then pulled further. Since the second engaging part 523 of the traction member 522 engages with the second engaging structure, the traction member 522 drives the pressing member 55 to move, so that the pressing member 55 cooperates with the fixed shell 53 to press the sewing thread 40, preventing the sewing thread 40 from moving, thereby locking the sewing thread 40 onto the fixed shell 53; as shown. Figure 15 As shown, after locking the suture 40, the pulling force of the traction member 52 is further increased, causing the second locking part 523 to break through the locking force between itself and the second locking structure (i.e., satisfying the second preset condition), thereby allowing the second locking part 523 to disengage from the second locking structure. Then, the second locking part 523 interferes with the cutting shell 54, and the traction member 522 drives the cutting shell 54 to move within the fixed shell 53. As the cutting shell 54 moves, the cutting hole 541 is misaligned with the suture hole, and the cutting hole 541 cuts the suture 40. The fixed shell 53 and the compression member 55 fall off with the suture 40 and remain inside the body. This structure achieves a one-time locking operation of the suture 40 inside the body, which is convenient, improves suturing efficiency, and thus increases the product's market competitiveness.

[0082] In addition, the cutting and locking device 50 is an independent component and is not connected to other components of the endoscopic suture device, thereby reducing the complexity of the endoscopic suture device package and allowing more suture pins 20 to be fitted on the installation tube 12, so as to release more suture pins 20 at one time.

[0083] like Figure 14As shown, in one embodiment of this application, the extruder 55 is provided with a through hole 551; the traction part 522 passes through the through hole 551, and the second snap-fit ​​part 523 can interfere with the extruder 55; the side walls opposite to the through hole 551 are respectively provided with slits 552; the second snap-fit ​​structure includes slits 552 and through hole 551.

[0084] The first engaging part 13 of the traction part 522 engages with the extrusion member 55, or the traction part 522 interferes with the extrusion member 55. When the user pulls the traction part 52 with force, and the second extrusion member 55 is subjected to a large force, the first engaging part 13 causes the extrusion member 55 to deform from the cut 552, thereby causing the first engaging part 13 to disengage from the second extrusion member 55, so as to realize the function of locking the seam 40.

[0085] like Figures 16 to 18 As shown, in one embodiment of this application, the second engaging portion 523 of the traction portion 522 is formed by welding an enlarged portion to the end of the traction portion 522. Specifically, the traction portion 522 is provided with an insertion hole, and the enlarged portion is provided with an insertion rod. The insertion rod is inserted into the insertion hole, and then welded to position the insertion rod within the insertion hole; or, the enlarged portion is provided with an insertion hole, the end of the traction portion 522 is inserted into the insertion hole, and then welded to position the end of the traction portion 522 within the insertion hole. The shape of the enlarged portion can be spherical, cylindrical, etc., and will not be listed here.

[0086] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should be noted in the description of this application that, unless otherwise expressly stated and limited, [the following applies].

[0087] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0088] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. An endoscopic suture device, characterized in that, include: A fixing frame, the fixing frame including a frame body and a mounting tube, wherein a first snap-fit ​​part is provided at one end of the mounting tube away from the frame body; Multiple suture pins are stacked sequentially on the outer surface of the mounting tube. Each suture pin is provided with a first snap-fit ​​structure that mates with the first snap-fit ​​portion. The mounting tube can drive the suture pin to rotate. A pusher is sleeved on the mounting tube and can move axially along the mounting tube. The pusher presses against the suture pin. When a first preset condition is met, the pusher can disengage the first snap-fit ​​structure from the first snap-fit ​​portion, so that the suture pin is disengaged from the mounting tube. as well as The suture is connected to a plurality of the staples, and the suture is fixedly connected to one of the staples located adjacent to the first snap-fit ​​portion, while the other staples are slidable on the suture. The pushing member includes: a rotating part screwed onto the mounting tube, the rotating part having a pushing part; and A push tube is disposed on the mounting tube, the push part presses against the push tube, and the push tube presses against the suture staple.

2. The endoscopic suture device according to claim 1, characterized in that, It also includes: a cutting and locking device, wherein the suture passes through the plurality of suture staples and then enters the cutting and locking device; The cutting and locking device includes a mounting frame, which includes a frame body, a handle, and a pressure tube. The pressure tube is provided with a first thread hole for the thread to pass through. The traction component includes a moving part and a traction part. The moving part is disposed on the frame body and can drive the traction part to move along the axial direction of the pressure tube. The end of the traction part is provided with a second snap-fit ​​part. A fixed shell is attached to the end of the pressure tube away from the frame body. The fixed shell is provided with a first thread hole for the sewing thread to pass through. The traction part passes through the frame body and the pressure tube in sequence and extends into the fixed shell. A cutting shell, disposed within the fixed shell, is provided with a cutting hole and a limiting hole. The second engaging portion of the traction part passes through the limiting hole and can interfere with the cutting shell. The sewing thread passes through the cutting hole, which corresponds to and communicates with the first thread-passing hole. An extrusion member is disposed within the fixed housing and located between the cutting housing and the stitching nail. The traction part passes through the extrusion member. The extrusion member is provided with a second snap-fit ​​structure that cooperates with the second snap-fit ​​part of the traction part. When a second preset condition is met, the second snap-fit ​​part can be disengaged from the second snap-fit ​​structure.

3. The endoscopic suture device according to claim 2, characterized in that, The extrusion member is provided with a through hole; The traction part passes through the through hole, and the second snap-fit ​​part can interfere with the extrusion part. Cut slits are respectively provided on the side walls opposite to the through hole. The second snap-fit ​​structure includes the slit and the through hole.

4. The endoscopic suture device according to claim 1, characterized in that, The suture staple includes a base and a spiral needle. The spiral needle is disposed on one end of the base, and the first snap-fit ​​structure is disposed on the other end of the base. The base and the spiral needle are sleeved on the mounting tube.

5. The endoscopic suture device according to claim 4, characterized in that, The suture staple further includes a thread-passing part, which is sleeved on the base and has a second thread-passing hole for the thread to pass through.

6. The endoscopic suture device according to claim 5, characterized in that, The threading part is rotatably mounted on the base.

7. The endoscopic suture device according to claim 1, characterized in that, The mounting tube has a mounting channel through it, the suture passes through the interior of the mounting channel and is fixedly connected to a suture pin disposed adjacent to the first snap-fit ​​portion.

8. The endoscopic suture device according to claim 1, characterized in that, The outer surface of the mounting tube is provided with an external thread, and the pusher is provided with an internal thread, which is screwed into the external thread.

9. The endoscopic suture device according to claim 1, characterized in that, Also includes: A protective tube is sleeved on the outside of the integral formed by the suture pin, part of the pusher, and the mounting tube, and a first limiting structure is provided at one end of the protective tube adjacent to the fixing frame.

10. The endoscopic suture device according to claim 1, characterized in that, The mounting tube includes a connecting part and a limiting part. The first snap-fit ​​part is disposed on the limiting part, and the suture staple is sleeved on the limiting part. The limiting part interferes with the suture staple.

11. The endoscopic suture device according to claim 10, characterized in that, The shape formed by the hole wall of the suture pin is non-circular, and the hole wall of the suture pin is adapted to the outer surface of the limiting part.

12. The endoscopic suture device according to claim 10, characterized in that, A second limiting structure is provided on the outer surface of the limiting part; The suture pin has an interference structure on its hole wall that interferes with the second limiting structure.

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