Endoscopic helical staple release device

Abstract

The application provides an endoscopic helical staple releasing device, which comprises a fixing frame, a suturing assembly, a pushing piece, a limiting component and a suture. The suturing assembly comprises a plurality of suturing staples, each of which is provided with a center hole, and the suture is located in the center hole of the suturing staple. The endoscopic helical staple releasing device provided by the application is characterized in that the suture is located in the center hole of the suturing staple, and in the process of rotating and anchoring the suturing staple, the suture rotates around its own axis without being knotted and locked on the suturing staple, so that the situation that the suturing staple cannot slide on the suture is avoided, that is, it is ensured that the plurality of suturing staples can be tightened through the suture to achieve effective suturing of the wound surface.

Description

Technical Field

[0001] This application relates to the field of interventional medical device technology, and in particular to an endoscopic spiral nail release 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 spiral staple release device that is simple to operate and has high suturing efficiency.

[0004] To achieve the above objectives, this application provides an endoscopic spiral staple release device, comprising: a fixing frame, the fixing frame including a frame body and an outer tube; a suture assembly including a plurality of suture staples, the plurality of suture staples being stacked sequentially inside the outer tube, and each of the suture staples having a central hole, the outer tube being capable of rotating the suture staples; a pushing member, the pushing member being disposed on the frame body and capable of moving axially along the outer tube, the abutting end of the pushing member being inserted into the outer tube and pressing against the suture assembly; a limiting member, the limiting member being located inside the outer tube, used to limit the suture staples from exiting the outer tube, and when a first preset condition is met, the suture staples can detach from the limiting member and exit from the outer tube; and a suture, the suture sequentially passing through the plurality of suture staples and being fixedly connected to one of the suture staples located adjacent to the outlet of the outer tube, the other suture staples being able to slide on the suture, the suture being located within the central hole of the suture staple.

[0005] The endoscopic spiral staple release device as described above further includes: a pulling member disposed on the frame and capable of moving axially along the outer tube; a pushing member having a first through hole therethrough, the snap-fit ​​end of the pulling member passing through the first through hole and extending into the outer tube; each of the staples being provided with a first snap-fit ​​structure, and the snap-fit ​​end sequentially passing through multiple staples and snapping with the first snap-fit ​​structure of the staple disposed adjacent to the outlet of the outer tube; when a first preset condition is met, the snap-fit ​​end can disengage from the first snap-fit ​​structure, and the snap-fit ​​end is the limiting component.

[0006] As described above, the endoscopic spiral staple release device further includes: a locking shell disposed within the outer tube and located on a side adjacent to the frame, the locking shell having a first thread-passing hole for the suture to pass through; a first cutting shell disposed within the locking shell, the first cutting shell having a first cutting hole and a first limiting hole, the pulling member passing through the first limiting hole, and the snap-fit ​​end interfering with the first cutting shell, the suture passing through the first cutting hole, the first cutting hole corresponding to and communicating with the first thread-passing hole; and a first pressing member disposed within the locking shell and located between the first cutting shell and the staple, the pulling member passing through the first pressing member, the first pressing member having a second snap-fit ​​structure cooperating with the snap-fit ​​end, and the snap-fit ​​end being able to disengage from the second snap-fit ​​structure when a second preset condition is met; wherein, the pulling member drives the first pressing member to move within the first cutting shell and presses the suture, fixing the suture to the locking shell.

[0007] In the endoscopic spiral pin release device described above, the second snap-fit ​​structure is a snap-fit ​​piece; the snap-fit ​​piece has a through-hole, and cards are respectively provided on the sidewalls of the connecting hole that are opposite to each other. The two cards extend towards each other in a direction perpendicular to the sidewalls of the connecting hole, and a snap-fit ​​hole is formed between the two cards. The puller passes through the snap-fit ​​hole, and the snap-fit ​​end can snap with the card.

[0008] The endoscopic spiral staple release device described above further includes: a cutting and locking device, wherein the suture passes through the outer tube 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; 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 member to move axially along the pressure tube, the traction part extending through the frame body into 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 being provided with a second suture hole for the suture to pass through; a second cutting shell, the second... A cutting shell is disposed within the fixed shell. The second cutting shell is provided with a second cutting hole and a second limiting hole. The traction part passes through the second limiting hole, and the snap-fit ​​part of the traction part can interfere with the second cutting shell. The suture passes through the second cutting hole, and the second cutting hole is correspondingly disposed and connected to the second thread passage hole. A second pressing member is disposed within the fixed shell and located between the second cutting shell and the suture staple. The traction part passes through the second pressing member. The second pressing member is provided with a third snap-fit ​​structure that cooperates with the snap-fit ​​part, and when a third preset condition is met, the snap-fit ​​part can disengage from the third snap-fit ​​structure.

[0009] As described above, in the endoscopic spiral pin release device, the second pressing member is provided with a second through hole; the traction part passes through the second through hole, and the snap-fit ​​part can interfere with the second pressing member; slits are respectively provided on the sidewalls opposite to the second through hole; the third snap-fit ​​structure includes the slits and the second through hole.

[0010] In the endoscope screw release device described above, the pulling member is rotatably mounted on the frame via a thread.

[0011] As described above, in the endoscope spiral pin release device, the frame is provided with a threaded rod, the pulling member is provided with a threaded hole, and the threaded rod is screwed into the threaded hole.

[0012] As described above, in the endoscopic spiral nail release device, the frame is provided with a rotating cavity, the cavity wall of the rotating cavity is provided with an internal thread, the outer surface of the pulling member is provided with an external thread, and the internal thread is screwed into the external thread.

[0013] As described above, in the endoscopic spiral staple release device, the outer tube includes a fixed tube and a rotating tube, the rotating tube being rotatably connected to the fixed tube; a plurality of staples are disposed within the rotating tube, and the fixed tube is connected to the frame; the inner wall of the rotating tube is non-circular, the outer surface of the abutting end is adapted to the inner wall of the rotating tube, and the outer surface of the staple is adapted to the inner wall of the rotating tube; the pushing member is capable of driving the rotating tube to rotate relative to the fixed tube around the axis of the outer tube.

[0014] In the endoscopic spiral staple release device described above, two spring pieces are symmetrically arranged on the staple, the spring pieces abut against the inner wall of the outer tube, and the spring pieces are the limiting components.

[0015] As described above, the endoscopic spiral staple release device includes a staple comprising a base and a spiral needle. The spiral needle is fixed to one end of the base, and the first snap-fit ​​structure is fixed to the other end of the base. The base has a central hole, through which the suture and the puller pass.

[0016] Compared with existing technologies, the above technical solution has the following advantages: The suture passes through the central hole of the staple. During the rotation and anchoring process of the staple, the suture rotates around its own axis and will not get tangled or locked on the spiral needle head of the staple. This avoids the situation where the staple cannot slide on the suture, thus ensuring that multiple staples can be tightened smoothly through the suture to achieve effective suturing of the wound. Attached Figure Description

[0017] The following figures are intended only to illustrate and explain this application and do not limit the scope of this application. Wherein: Figure 1 This is an exploded structural diagram of the first embodiment of the endoscopic spiral nail release device described in this application; Figure 2 This is a cross-sectional view of the first embodiment of the endoscopic spiral staple release device described in this application; Figure 3 yes Figure 2 A partial structural schematic diagram of the endoscope spiral staple release device is shown. Figure 4 This is a schematic diagram of the structure of the suture staple described in this application; Figure 5 This is a cross-sectional view of the cut-off and locking parts described in this application in a locked state; Figure 6 This is an exploded structural diagram of the cutting and locking parts described in this application; Figure 7This is a cross-sectional structural diagram showing the cut-off and locking parts in the cut-off state. Figure 8 This is a schematic diagram of the cutting-off locking device described in this application; Figure 9 yes Figure 8 A partial cross-sectional view of the cut-off locking device in the locked state; Figure 10 yes Figure 8 A partially exploded view of the cut-off locking device; Figure 11 yes Figure 8 A partial cross-sectional view of the cut-off locking device in the cut-off state; Figure 12 This is an exploded structural diagram of a second embodiment of the endoscopic spiral nail release device described in this application; Figure 13 This is a cross-sectional structural diagram of the outer tube described in this application; Figure 14 This is a partial cross-sectional view of the third embodiment of the endoscopic spiral staple release device described in this application; Figure 15 This is a partial cross-sectional view of the first embodiment of the pull member described in this application; Figure 16 This is a partial cross-sectional view of the second embodiment of the pull member described in this application; Figure 17 This is a partial cross-sectional view of the third embodiment of the pull member described in this application.

[0018] Explanation of icon numbers: 10. Fixing frame; 11. Frame body; 12. Outer tube; 121. Fixing tube; 122. Rotating tube; 123. Slot; 13. Threaded rod; 20. Sewing assembly; 21. Sewing staple; 211. Center hole; 212. Base; 213. Spiral needle; 22. First snap-fit ​​structure; 23. Locking shell; 231. First thread hole; 24. First cutting shell; 241. First cutting hole; 242. First limiting hole; 25. First pressing element; 251. Second snap-fit ​​structure; 26. Spring; 30. Pushing element; 31. First through hole; 32. Abutting end; 40. Limiting component; 50. Sewing thread; 60. Pulling component; 61. Snap-fitting end; 62. Threaded hole; 70. Cutting and locking device; 71. Mounting bracket; 711. Bracket body; 712. Handle; 713. Pressing tube; 72. Traction component; 721. Moving part; 722. Traction part; 7221. Snap-fitting part; 73. Fixing shell; 731. Second thread hole; 74. Second cutting shell; 741. Second cutting hole; 742. Second limiting hole; 75. Second pressing component; 751. Second through hole; 752. Cutting slit. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] like Figures 1 to 3 As shown, the endoscopic spiral staple release device provided in this application includes: a fixation frame 10, a suture assembly 20, a pusher 30, a limiting component 40, and a suture 50.

[0023] The fixing frame 10 includes a frame body 11 and an outer tube 12.

[0024] The suture assembly 20 includes a plurality of suture pins 21, which are stacked sequentially inside the outer tube 12. Each suture pin 21 has a central hole 211, and the outer tube 12 can drive the suture pin 21 to rotate. In a specific embodiment of this application, as shown... Figure 4 As shown, the suture 21 includes a base 212 and a spiral needle 213. The spiral needle 213 is fixed to one end of the base 212, and the first snap-fit ​​structure 22 is fixed to the other end of the base 212. A central hole 211 is provided on the base 212. The spiral needle 213 of one suture 21 presses against another suture 21, and the spiral needle 213 is compressed, thereby reducing the space occupied by a single suture 21. This allows more sutures 21 to be installed inside the outer tube 12. When the first suture 21 is removed from the outer tube 12, the spiral needle 213 of the second suture 21 opens due to the loss of pressure from the first suture 21. Because the spiral needle 213 is restricted by the outer tube, and can be shaped by the squeezing action of the other suture 21, the spiral needle 213 returns to its original shape under the action of elasticity when the pressure of the other suture 21 is lost. The spiral needle of the suture staple can be compressed and placed inside the outer tube, or the spiral needle of the suture staple can be placed inside the outer tube without being compressed.

[0025] The pusher 30 is mounted on the frame 11 and can move axially along the outer tube 12. The abutting end 32 of the pusher 30 is inserted into the outer tube 12 and presses against the sewing assembly 20.

[0026] The limiting component 40 is located inside the outer tube 12 and is used to restrict the suture staple 21 from coming out of the outer tube 12. When the first preset condition is met, the suture staple 21 can be separated from the limiting component 40 and come out of the outer tube 12.

[0027] The suture 50 passes through a plurality of suture pins 21 in sequence and is fixedly connected to one of the suture pins 21 located at the outlet of the adjacent outer tube 12. The other suture pins 21 can slide on the suture 50, and the suture 50 is located in the central hole 211 of the suture pin 21.

[0028] After the endoscopic spiral staple release device enters the human body, the pusher 30 pushes the spiral needle 213 of the first staple 21 out of the outer tube 12. When the staple 21 is completely pushed out of the outer tube 12, the limiting member 40 prevents the first staple 21 from coming out of the outer tube 12. Then, the fixing bracket 10 drives the staple 21 to rotate, so that the staple 21 is screwed into the human tissue at the first position. After the staple 21 is completely screwed into and anchored in the human tissue, the user increases the external force applied to the pusher 30 to pull the first staple 21 out of the outer tube 12. The spiral needle 213 of the second staple 21 is pushed out of the outer tube 12. When the staple 21 is completely pushed out of the outer tube 12, the limiting member 40 prevents the second staple 21 from coming out of the outer tube 12 because the locking end 61 of the puller 60 is locked with the first locking structure 22. Then, the fixing bracket 10 drives the staple 21 to rotate, so that the staple 21 is screwed into the human tissue at the second position. The suture 50 is located inside the central hole 211 of the suture staple 21. During the rotational anchoring of the second suture staple 21, the suture 50 rotates around its own axis without tangling or locking itself onto the second suture staple 21. The user applies external force to the pusher to dislodge the second suture staple 21 from the outer tube 12. This process is repeated to anchor multiple suture staples 21 at the corresponding fixation points in the human tissue. Then, the suture 50 is used to tighten the multiple suture staples 21, locking the suture 50 in place. Finally, the suture 50 is cut, allowing the multiple suture staples 21 to drive the surrounding human tissue to suture the wound. This allows the endoscopic spiral staple release device to suture the wound after a single insertion, improving suturing efficiency. Furthermore, the endoscopic spiral staple release device has a simple structure and is easy to operate, improving user comfort and increasing market competitiveness.

[0029] This application provides an endoscopic spiral staple release device. The suture 50 is located in the central hole 211 of the staple 21. During the rotation and anchoring process of the staple 21, the suture 50 rotates around its own axis without getting tangled or locked on the staple 21. This avoids the situation where the staple 21 cannot slide on the suture 50, thus ensuring that multiple staples 21 can be tightened smoothly through the suture 50 to achieve effective suturing of the wound.

[0030] like Figures 1 to 3 As shown, in one embodiment of this application, the endoscopic spiral nail release device further includes a puller 60.

[0031] The pull member 60 is mounted on the frame 11 and can move axially along the outer tube 12.

[0032] The pusher 30 has a first through hole 31 through it, and the snap-fit ​​end 61 of the puller 60 passes through the first through hole 31 and extends into the outer tube 12.

[0033] Each suture pin 21 is provided with a first snap-fit ​​structure 22, and the snap-fit ​​end 61 passes through the central hole 211 of multiple suture pins 21 in sequence, and snaps with the first snap-fit ​​structure 22 of the suture pin 21 provided at the outlet of the adjacent outer tube 12.

[0034] When the first preset condition is met, the snap-fit ​​end 61 can be disengaged from the first snap-fit ​​structure 22. The snap-fit ​​end 61 is a limiting component 40.

[0035] When the suture staple 21 is fully pushed out of the outer tube 12, the pulling member 60 prevents the first suture staple 21 from coming out of the outer tube 12 because the snap-fit ​​end 61 of the pulling member 60 is snapped into the first snap-fit ​​structure 22. When the suture staple 21 is fully screwed in and anchored in the human tissue, the user increases the external force applied to the pushing member 30 and at the same time, pulls the pulling member 60 forcefully, so that the snap-fit ​​end 61 of the pulling member 60 breaks through the snap-fit ​​force between the first snap-fit ​​structure 22 (i.e., meets the first preset condition), so that the snap-fit ​​end 61 can come out of the first snap-fit ​​structure 22 and the suture staple 21 is removed from the outer tube 12.

[0036] like Figures 5 to 7 As shown, in one embodiment of this application, the stitching assembly 20 further includes: a locking shell 23, a first cutting shell 24, and a first compression member 25.

[0037] The locking housing 23 is disposed inside the outer tube 12 and located on one side adjacent to the frame 11. The locking housing 23 is provided with a first thread hole 231 for the thread 50 to pass through.

[0038] The first cutting shell 24 is disposed inside the locking shell 23. The first cutting shell 24 is provided with a first cutting hole 241 and a first limiting hole 242. The pulling member 60 passes through the first limiting hole 242, and the snap-fit ​​end 61 can interfere with the first cutting shell 24. The sewing thread 50 passes through the first cutting hole 241. The first cutting hole 241 is correspondingly disposed and connected with the first thread hole 231.

[0039] The first pressing member 25 is disposed inside the locking shell 23 and located between the first cutting shell 24 and the sewing nail 21. The pulling member 60 passes through the first pressing member 25. The first pressing member 25 is provided with a second snap-fit ​​structure 251 that cooperates with the snap-fit ​​end 61. When the second preset condition is met, the snap-fit ​​end 61 can be disengaged from the second snap-fit ​​structure 251.

[0040] The pulling member 60 drives the first pressing member 25 to move within the first cutting shell 24 and presses the sewing thread 50, fixing the sewing thread 50 onto the locking shell 23.

[0041] After the multiple suture staples 21 are anchored at the corresponding human tissue positions, the tightening suture 50 tightens the multiple suture staples 21. The multiple suture staples 21 pull the human tissue around the wound to wrap the wound. Then, the pulling member 60 is pulled further. Because the locking end 61 of the pulling member 60 is locked with the second locking structure 251 (e.g., Figure 5 As shown), the pulling member 60 drives the first pressing member 25 to move, so that the first pressing member 25 cooperates with the locking shell 23 to press the sewing thread 50, making the sewing thread 50 unable to move, thereby locking the sewing thread 50 onto the locking shell 23; after locking the sewing thread 50, the pulling force of the pulling member 60 is further increased, so that the snap-fit ​​end 61 breaks through the snap-fit ​​force between the snap-fit ​​end and the second snap-fit ​​structure 251 (i.e., the second preset condition is met), thereby allowing the snap-fit ​​end 61 to disengage from the second snap-fit ​​structure 251; then the snap-fit ​​end 61 interferes with the first cutting shell 24, and the pulling member 60 drives the first cutting shell 24 to move inside the outer tube 12. As the first cutting shell 24 moves, the first cutting hole 241 and the first thread hole 231 are misaligned, and the first cutting hole 241 cuts the sewing thread 50 (as shown). Figure 7 As shown, the locking shell 23 and the first compression member 25 detach from the outer tube 12 along with the suture 50 and remain inside the human body. The above structure enables the one-time locking and cutting of the suture 50 inside the human body, eliminating the need for other independent locking devices to lock the suture 50. This facilitates operation, improves suturing efficiency, and thus increases the product's market competitiveness.

[0042] like Figure 6 As shown, in one embodiment of this application, the second snap-fit ​​structure 251 is a snap-fit ​​piece.

[0043] The snap-fit ​​piece has a through-hole, and two cards are respectively provided on the sidewalls opposite to the connection hole. The two cards extend towards each other in a direction perpendicular to the sidewalls of the connection hole, forming a snap-fit ​​hole between the two cards. The puller 60 passes through the snap-fit ​​hole, and the snap-fit ​​end 61 can snap into the card.

[0044] The snap-fit ​​end 61 of the pull member 60 snaps into the snap-fit ​​piece, causing the pull member 60 and the snap-fit ​​piece to interfere with each other. When the user pulls the force traction part 722, when the snap-fit ​​piece is subjected to a large force, the snap-fit ​​end 61 deforms the snap-fit ​​hole, thereby causing the snap-fit ​​end 61 to disengage from the snap-fit ​​hole, so as to realize the function of locking the seam 50.

[0045] like Figures 8 to 11 As shown, in one embodiment of this application, the endoscopic spiral nail release device further includes a cutting and locking device 70, wherein the suture 50 passes through the outer tube 12 and then through the cutting and locking device 70.

[0046] The cutting and locking device 70 includes: a mounting bracket 71, a traction member 72, a fixing shell 73, a second cutting shell 74, and a second pressing member 75.

[0047] Mounting bracket 71 includes a bracket body 711, a handle 712, and a pressure tube 713.

[0048] The traction member 72 includes a moving part 721 and a traction part 722. The moving part 721 is disposed on the frame body 711 and can drive the traction part 722 to move axially along the pressure tube 713. The traction part 722 passes through the frame body 711 and extends into the pressure tube 713.

[0049] The fixing shell 73 abuts against the end of the pressure tube 713 away from the frame body 711, and the fixing shell 73 is provided with a second thread hole 731 for the thread 50 to pass through.

[0050] The second cutting shell 74 is disposed inside the fixed shell 73. The second cutting shell 74 is provided with a second cutting hole 741 and a second limiting hole 742. The traction part 722 passes through the second limiting hole 742, and the snap-fit ​​part 7221 of the traction part 722 can interfere with the second cutting shell 74. The sewing thread 50 passes through the second cutting hole 741. The second cutting hole 741 is correspondingly disposed and connected with the second thread hole 731.

[0051] The second pressing member 75 is disposed inside the fixed shell 73 and located between the second cutting shell 74 and the sewing nail 21. The traction part 722 passes through the second pressing member 75. The second pressing member 75 is provided with a third snap-fit ​​structure that cooperates with the snap-fit ​​part 7221. When the third preset condition is met, the snap-fit ​​part 7221 can be disengaged from the third snap-fit ​​structure.

[0052] After the multiple suture staples 21 are anchored at the corresponding human tissue positions, the tightening suture 50 tightens the multiple suture staples 21. The multiple suture staples 21 pull the human tissue around the wound to wrap the wound. Then, the traction member 72 is pulled further. Because the locking part 7221 of the traction part 722 is locked with the third locking structure (such as... Figure 9 As shown), the traction unit 722 drives the second pressing member 75 to move, so that the second pressing member 75 cooperates with the fixed shell 73 to press the sewing thread 50, making the sewing thread 50 unable to move, thereby locking the sewing thread 50 onto the fixed shell 73; after locking the sewing thread 50, the drag force of the traction unit 72 is further increased, so that the locking part 7221 breaks through the locking force between itself and the third locking structure (i.e., meets the third preset condition), thereby allowing the locking part 7221 to disengage from the third locking structure; then the locking part 7221 interferes with the second cutting shell 74, and the traction unit 722 drives the second cutting shell 74 to move within the fixed shell 73. As the second cutting shell 74 moves, the second cutting hole 741 and the second thread hole 731 are misaligned, and the second cutting hole 741 cuts the sewing thread 50 (as shown). Figure 11As shown, the fixing shell 73 and the second compression member 75 detach with the suture 50 and remain inside the body. This structure enables a one-time locking operation of the suture 50 inside the body, facilitating operation, improving suturing efficiency, and thus increasing the product's market competitiveness. Furthermore, the aforementioned cutting and locking device 70 is an independent component, not connected to other components of the endoscopic screw release device. This simplifies the complexity of the endoscopic screw release device and allows for more space within the outer tube 12 to accommodate the sutures 21, enabling the release of more sutures 21 at once.

[0053] like Figure 10 As shown, in one embodiment of this application, the second extruder 75 is provided with a second through hole 751 extending through it.

[0054] The traction part 722 passes through the second through hole 751, and the snap-fit ​​part 7221 can interfere with the second pressing member 75. The side walls opposite to the second through hole 751 are respectively provided with slits 752.

[0055] The third snap-fit ​​structure includes a slit 752 and a second through hole 751.

[0056] The engaging part 7221 of the traction part 722 engages with the second pressing member 75, that is, the traction part 722 and the second pressing member 75 interfere with each other. When the user pulls the traction part 72 with force, when the force on the second pressing member 75 is large, the engaging part 7221 causes the second pressing member 75 to deform from the cut 752, thereby causing the engaging part 7221 to disengage from the second pressing member 75, so as to realize the function of locking the seam 50.

[0057] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the pull member 60 is rotatably mounted on the frame 11 via a thread.

[0058] The pulling member 60 rotates relative to the frame 11, and moves along the frame 11 via threads. The pressure between the locking end 61 of the pulling member 60 and the locking structure gradually increases. When the pressure between the locking end 61 and the locking structure reaches the preset pressure, the locking end 61 breaks through the locking structure, causing the locking end 61 to separate from the locking structure. During the movement of the pulling member 60, the pressure between the locking end 61 and the locking structure gradually increases, thereby achieving the purpose of precisely controlling the dragging force of the pulling member 60.

[0059] like Figure 1 and Figure 2 As shown, in one embodiment of this application, a threaded rod 13 is provided on the frame 11, and a threaded hole 62 is provided on the pulling member 60, with the threaded rod 13 screwed into the threaded hole 62.

[0060] The pulling member 60 is screwed onto the threaded rod 13. Rotating the pulling member 60 causes it to move along the threaded rod 13. During the movement of the pulling member 60, the pressure between the snap-fit ​​end 61 and the snap-fit ​​structure gradually increases, thereby achieving the purpose of precisely controlling the drag force of the pulling member 60.

[0061] In one embodiment of this application, a rotating cavity is provided on the frame, and an internal thread is provided on the cavity wall of the rotating cavity. An external thread is provided on the outer surface of the pulling member, and the internal thread and the external thread are screwed together.

[0062] The puller is threadedly connected inside the rotating cavity. Rotating the puller causes it to move within the rotating cavity. During the movement of the puller, the pressure between the snap-fit ​​end and the snap-fit ​​structure gradually increases, thereby achieving the purpose of precisely controlling the drag force of the puller.

[0063] like Figure 12 and Figure 13 As shown, in one embodiment of this application, the outer tube 12 includes a fixed tube 121 and a rotating tube 122, which are rotatably connected to the fixed tube 121.

[0064] Multiple suture pins 21 are disposed inside the rotating tube 122, and the fixing tube 121 is connected to the frame 11; the inner wall of the rotating tube 122 is non-circular, the outer surface of the abutting end 32 is adapted to the inner wall of the rotating tube 122, and the outer surface of the suture pin 21 is adapted to the inner wall of the rotating tube 122.

[0065] The pusher 30 can drive the rotating tube 122 to rotate relative to the fixed tube 121 around the axis of the outer tube 12.

[0066] After the pusher 30 completely pushes the spiral needle 213 of the suture staple 21 out of the rotating tube 122, the user rotates the pusher 30. Due to the interference between the outer surface of the suture staple 21 and the inner wall of the rotating tube 122, the pusher 30 drives the rotating tube 122 to rotate, and the rotating tube 122 drives the suture staple 21 to rotate, thereby causing the spiral needle 213 to be screwed into the corresponding human tissue. The above-mentioned operation of rotating the suture staple 21 only requires rotating the pusher 30 to screw the suture staple 21 into the human tissue, without needing to rotate the entire frame 11. The operation is simple and convenient, ensuring the comfort of the product and thus increasing the product's market competitiveness.

[0067] Those skilled in the art should understand that, in order to ensure that the outer tube 12 can drive the suture staple 21 to rotate, the inner wall surface of the portion of the outer tube 12 where the suture staple 21 is located is non-circular in shape. In another embodiment of this application, in order to ensure that the outer tube can drive the suture staple to rotate, a limiting member structure is provided between the outer tube and the suture staple, such as a groove on one of the outer tube and the suture staple, and a protrusion on the other.

[0068] like Figure 14 As shown, in one embodiment of this application, two spring pieces 26 are symmetrically arranged on the suture staple 21. The spring pieces 26 press against the inner wall of the outer tube 12, and the spring pieces 26 are limiting components 40. In a specific embodiment of this application, two slots 123 are symmetrically arranged on the side wall of the outlet of the outer tube 12, and the spring pieces 26 can be inserted into the slots 123.

[0069] The spring 26 presses against the inner wall of the outer tube 12, that is, the suture staple 21 interferes with the outer tube 12 through the spring 26, preventing the suture staple 21 from coming out of the outer tube 12. In addition, the rotational force applied to the outer shell can be effectively transmitted to the suture staple 21 through the spring 26, so that the suture staple 21 can quickly enter the human tissue.

[0070] like Figures 15 to 17 As shown, in one embodiment of this application, the snap-fit ​​end 61 of the pulling member 60 is formed by welding an enlarged portion to the end of the pulling member 60. Specifically, the pulling member 60 is provided with an insertion hole, and an insertion rod is provided on the enlarged portion. The insertion rod is inserted into the insertion hole, and then fixed in the insertion hole by welding; or, the enlarged portion is provided with an insertion hole, the end of the pulling member 60 is inserted into the insertion hole, and then fixed in the insertion hole by welding. The shape of the enlarged portion can be spherical, cylindrical, etc., which will not be listed here. Similarly, the snap-fit ​​portion of the traction unit is also manufactured in the same way as the snap-fit ​​end of the pulling member.

[0071] 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].

[0072] 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.

[0073] 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 helical staple releasing device, characterized by, include: The fixing frame includes a frame body and an outer tube; A suture assembly comprising a plurality of suture staples stacked sequentially inside an outer tube, each suture staple having a central hole, the outer tube being capable of rotating the suture staples; A pusher is disposed on the frame and is movable along the axial direction of the outer tube. The abutting end of the pusher is inserted into the outer tube and presses against the sewing assembly. A limiting component, located inside the outer tube, is used to restrict the suture staple from exiting the outer tube, and when a first preset condition is met, the suture staple can detach from the limiting component and exit from the outer tube; and The suture passes sequentially through a plurality of the suture pins and is fixedly connected to one of the suture pins located near the outlet of the outer tube. The other suture pins are slidable along the suture line, and the suture line is located within the central hole of the suture pin. The outer tube includes a fixed tube and a rotating tube, which are rotatably connected to the fixed tube. A plurality of suture pins are disposed inside the rotating tube. The fixed tube is connected to the frame. The pusher can drive the rotating tube to rotate relative to the fixed tube around the axis of the outer tube.

2. The endoscopic spiral nail release device according to claim 1, characterized in that, It also includes: a pulling member, which is disposed on the frame and is capable of moving along the axial direction of the outer tube; The pusher has a first through hole therethrough, and the snap-fit ​​end of the puller passes through the first through hole and extends into the outer tube; Each of the suture pins is provided with a first snap-fit ​​structure, and the snap-fit ​​end passes through multiple suture pins in sequence and snaps with the first snap-fit ​​structure of the suture pin provided near the outlet of the outer tube; When the first preset condition is met, the snap-fit ​​end can be disengaged from the first snap-fit ​​structure, and the snap-fit ​​end is the limiting component.

3. The endoscopic spiral nail release device according to claim 2, characterized in that, The suture assembly further includes: a locking shell disposed inside the outer tube and located on one side adjacent to the frame, the locking shell having a first thread hole for the suture to pass through; A first cutting shell, disposed within the locking shell, has a first cutting hole and a first limiting hole. The pulling member passes through the first limiting hole, and the snap-fit ​​end can interfere with the first cutting shell. The sewing thread passes through the first cutting hole, which corresponds to and communicates with the first thread hole. The first extrusion member is disposed inside the locking shell and located between the first cutting shell and the stitching nail. The pulling member passes through the first extrusion member. The first extrusion member is provided with a second snap-fit ​​structure that cooperates with the snap-fit ​​end. When a second preset condition is met, the snap-fit ​​end can be disengaged from the second snap-fit ​​structure. The pulling member drives the first pressing member to move within the locking housing and presses the stitching to fix the stitching to the locking housing.

4. The endoscopic spiral staple release device according to claim 3, characterized in that, The first extruder has a through-hole, and two cards are respectively provided on the sidewalls of the connecting hole. The two cards extend towards each other in a direction perpendicular to the sidewalls of the connecting hole, and a snap-fit ​​hole is formed between the two cards. The snap-fit ​​end passes through the snap-fit ​​hole and snaps into the card. The second snap-fit ​​structure includes the connecting hole and the card.

5. The endoscopic spiral staple release device according to claim 1, characterized in that, It also includes: a cutting and locking device, wherein the suture passes through the outer tube and then through 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 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 axially along the pressure tube. The traction part passes through the frame body and extends into the pressure tube, and the end of the traction part is provided with a snap-fit ​​part. A fixing shell abuts against the end of the pressure tube away from the frame body, and the fixing shell is provided with a second thread hole for the sewing thread to pass through; A second cutting shell is disposed within the fixed shell. The second cutting shell has a second cutting hole and a second limiting hole. The traction part passes through the second limiting hole, and the engaging part of the traction part can interfere with the second cutting shell. The sewing thread passes through the second cutting hole, which corresponds to and communicates with the second thread-passing hole. The second extrusion member is disposed inside the fixed shell and located between the second cutting shell and the stitching nail. The traction part passes through the second extrusion member. The second extrusion member is provided with a third snap-fit ​​structure that cooperates with the snap-fit ​​part. When a third preset condition is met, the snap-fit ​​part can be disengaged from the third snap-fit ​​structure.

6. The endoscopic spiral staple release device according to claim 5, characterized in that, The second extrusion member is provided with a second through hole; The traction part passes through the second through hole, and the snap-fit ​​part can interfere with the second extrusion member. Cut slits are respectively provided on the side walls opposite to the second through hole. The third snap-fit ​​structure includes the slit and the second through hole.

7. The endoscopic spiral staple release device according to claim 2, characterized in that, The pull member is rotatably mounted on the frame via a thread.

8. The endoscopic spiral staple release device according to claim 7, characterized in that, The frame is provided with a threaded rod, and the pulling member is provided with a threaded hole, and the threaded rod is screwed into the threaded hole.

9. The endoscopic spiral staple release device according to claim 7, characterized in that, The frame is provided with a rotating cavity, the cavity wall of which is provided with an internal thread, and the outer surface of the pulling member is provided with an external thread, and the internal thread is screwed into the external thread.

10. The endoscopic spiral staple release device according to claim 1, characterized in that, The inner wall of the rotating tube is non-circular, the outer surface of the abutting end is adapted to the inner wall of the rotating tube, and the outer surface of the suture nail is adapted to the inner wall of the rotating tube.

11. The endoscopic spiral staple release device according to claim 1, characterized in that, Two spring tabs are symmetrically arranged on the suture staple. The spring tabs press against the inner wall of the outer tube and serve as the limiting components.

12. The endoscopic spiral staple release device according to claim 2, characterized in that, The suture staple includes a base and a spiral needle. The spiral needle is disposed at one end of the base, and the first snap-fit ​​structure is disposed at the other end of the base. The base has a central hole, and the suture and the pull member both pass through the central hole.

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