Split type surgical stapler

Abstract

The application discloses a split type surgical suturing device, which comprises a main body control part, a split part, a suturing end part and a suture fixing part, one end of the split part is movably connected with the main body control part, the other end is connected with the suturing end part, and the suture fixing part is arranged outside the split part and connected with the split part. The detachable split part is arranged between the main body control part and the suturing end part, when the operation is completed, medical personnel only need to replace the split part to perform the second operation, namely, the main body control part can be repeatedly used after sterilization, and the split part is disposable, so that the service life of the suturing device is effectively prolonged, and the manufacturing cost is reduced; the structure is used for suturing deep ligament tissues, is simple and convenient to operate, has high one-time suturing success rate, can be repeatedly sutured, greatly shortens the operation time and is accurate in suturing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and relates to a surgical suturing device, in particular to a split type surgical suturing device. BACKGROUND

[0002] At present, the suturing device used by the operator in the operation process for suturing and fixing is mostly disposable, which cannot achieve the purpose of repeated use, thereby resulting in high cost of manufacturing the suturing device; and when the deep interstitial ligament tissue needs to be sutured and fixed, the traditional needle holder is used to clamp the suture needle for suturing and fixing, since the operation site is deep and the space is small, the surrounding tissue must be largely separated to form a larger space at the operation site, and the suturing can be performed under the direct vision of the operator; in this way, the surrounding tissue is greatly damaged, and the adjacent organs are easily damaged, and even so, due to the small and deep operation space and insufficient space illumination, the suturing is still difficult, the one-time success rate of suturing is not high, and the operation time is prolonged. SUMMARY

[0003] Therefore, the main purpose of the present application is to provide a split type surgical suturing device, which solves the problems of difficult suturing of deep interstitial ligament tissue, easy damage to adjacent organs, and the suturing device in the prior art cannot be reused, resulting in high manufacturing cost.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows: a split type surgical suturing device, comprising a main body control part, a split part, a suturing end part and a suture line fixing part, one end of the split part is movably connected with the main body control part, the other end is connected with the suturing end part, and the suture line fixing part is arranged outside the split part 2 and connected with the split part.

[0005] Preferably, the split part comprises a split piece main body with a hollow structure and a driven rod assembly, the driven rod assembly is arranged in the split piece main body, one end of the split piece main body is movably connected with the main body control part, and the other end is connected with the suturing end part.

[0006] Preferably, the main body control part comprises a trigger, a shell assembly with a holding handle, a tail end rotating assembly arranged outside the shell assembly, and a driving rod arranged in the shell assembly 12, the tail end rotating assembly is movably connected with one end of the driving rod for fixing or loosening the driving rod, the trigger is fixedly connected with the driving rod for pushing the driving rod to move forward; the driving rod is movably connected with the driven rod assembly.

[0007] Preferably, the main body control part further comprises a split fixing assembly, one side of the split fixing assembly is arranged inside the main body control part near the end of the shell assembly close to the split piece main body, and the split piece main body is movably connected with the shell assembly through the split fixing assembly.

[0008] Preferably, the split fixing assembly comprises a split fixed part body, a split movable part body, and a first elastic part, the first elastic part and the split movable part body are sequentially sleeved on the split fixed part body from inside to outside, and one end of the first elastic part is fixedly connected with the split fixed part body.

[0009] Preferably, a protrusion is arranged on the inner wall of the split fixed part body, a clamping groove is arranged on the outer wall of the split body, and the protrusion is connected with the clamping groove in a matched mode.

[0010] Preferably, the driven rod assembly comprises a first driven rod, a first bending part, a first connecting rod, and a suture needle, the first driven rod and the first connecting rod are respectively arranged at two ends of the first bending part and are fixedly connected with the first bending part, the suture needle is connected with one end of the first connecting rod away from the first bending part, and one end of the first driven rod away from the first bending part is connected with the driving rod in the main body control part.

[0011] Preferably, the suture end part comprises a hollow first suture end body and a thread fixing part, one end of the first suture end body is curved, one end of the first suture end body is provided with a first through groove 311 for fixing the suture needle and suturing damaged tissue, a through hole for fixing the fixing part is arranged on the side wall of the first through groove, and the curved end of the first suture end body is fixedly connected with the split part body.

[0012] Preferably, the driven rod assembly comprises a second driven rod, a second bending part, a second connecting rod, and a suture needle assembly, the second driven rod and the second connecting rod are respectively arranged at two ends of the second bending part and are fixedly connected with the second bending part, the suture needle assembly is connected with one end of the second connecting rod away from the second bending part, and one end of the second driven rod away from the second bending part is connected with the main body control part.

[0013] Preferably, the suture needle assembly comprises a push rod needle and a push rod cap, the push rod cap is sleeved at the end of the push rod needle, and the bottom of the push rod needle is connected with the second connecting rod.

[0014] Preferably, the suture end part comprises a hollow second suture end body, one end of the second suture end body is curved, one end of the second suture end body is provided with a second through groove for fixing the push rod needle and suturing damaged tissue, a fixing groove for fixing the push rod cap is arranged on the groove wall of the second through groove, and the curved end of the second suture end body is fixedly connected with the split part body.

[0015] Preferably, the bottom of the first suture end body and the second suture end body is provided with a gap for positioning a suture.

[0016] Preferably, the first suture head body and the second suture head body are respectively arranged at a bending angle of 10-20 degrees relative to the length direction of the split body.

[0017] Preferably, the suture fixing part comprises a thread disc assembly, a thread disc positioning cylinder, a fixing buckle and a connecting piece, the thread disc positioning cylinder is sleeved on the split body, the fixing buckle is fixed on the thread disc positioning cylinder, the thread disc assembly is arranged on the fixing buckle and connected with the fixing buckle through the connecting piece.

[0018] Preferably, the thread disc assembly comprises an upper disc body and a lower disc body, the upper disc body is fixedly connected with the lower disc body, the connecting piece is arranged in the upper disc body, and the upper disc body is connected with the fixing buckle through the connecting piece; the lower disc body is provided with a boss for winding the suture thread and having a thread embedding groove.

[0019] Preferably, the body control part further comprises a third elastic component arranged in the shell assembly, the third elastic component is sleeved on the driving rod for returning the driving rod, and the driven rod assembly further comprises two second elastic components, the two second elastic components are respectively sleeved on the first driven rod and the second driven rod for returning the first driven rod and the second driven rod.

[0020] Preferably, the first driven rod and the second driven rod are respectively provided with a limiting piece for the second elastic component to generate elastic force on the side wall of the one end of the first driven rod away from the first bending piece and on the side wall of the one end of the second driven rod away from the second bending piece.

[0021] Preferably, the tail end rotating assembly comprises a tail end rotating piece and a rotating fixing piece, the tail end rotating piece is sleeved on the rotating fixing piece, and one end of the driving rod is connected with the rotating fixing piece in a matched mode.

[0022] Compared with the prior art, the detachable split part is arranged between the body control part and the suture head part, so that when the operation is completed, the medical staff only needs to replace the split part to perform the second operation, thereby realizing the reuse of the body control part and effectively reducing the cost of manufacturing the suture device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall structure schematic view of the split type surgical suture device provided for the embodiment 1 of the present application is shown in the figure.

[0024] Figure 2 The overall cross-sectional view of the split type surgical suture device provided for the embodiment 1 of the present application is shown in the figure.

[0025] Figure 3 The enlarged view of the middle A part is shown in the figure. Figure 2

[0026] Figure 4 ​A sectional view of a split surgical suturing device according to an embodiment of the present application;

[0027] Figure 5 A structural schematic view of a suturing tip portion of a split surgical suturing device according to an embodiment of the present application;

[0028] Figure 6 A structural schematic view of a suture fixing portion of a split surgical suturing device according to an embodiment of the present application;

[0029] Figure 7 A structural schematic view of a thread disc assembly of a split surgical suturing device according to an embodiment of the present application;

[0030] Figure 8 An exploded structural schematic view of a split surgical suturing device according to an embodiment of the present application;

[0031] Figure 9 A structural schematic view of a split surgical suturing device according to another embodiment of the present application;

[0032] Figure 10 A sectional view of a split surgical suturing device according to another embodiment of the present application;

[0033] Figure 11 A structural schematic view of a suturing tip portion of a split surgical suturing device according to another embodiment of the present application;

[0034] Figure 12 A structural schematic view of a suturing tip assembly of a split surgical suturing device according to another embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and should not be used to limit the present application.

[0036] Embodiment 1

[0037] A split surgical suturing device according to an embodiment of the present application is provided, as shown in FIG. 1. The split surgical suturing device comprises a split body 1, a suturing tip portion 2, a suture fixing portion 3, a thread disc assembly 4, and a handle 5. Figure 1As shown, it comprises a main control part 1, a split part 2, a suture end part 3 and a suture line fixing part 4, one end of the split part 2 is movably connected with the main control part 1, the other end is connected with the suture end part 3, the suture line fixing part 4 is arranged outside the split part 2 and is connected with the split part 2; the structure sets the detachable split part between the main control part 1 and the suture end part 3, so that when the operation is completed, the medical staff only needs to replace the split part 2 to perform the suture operation again, thereby realizing the reuse of the main control part 1 and effectively reducing the cost of manufacturing the suture device; at the same time, the suture line fixing part is arranged outside the split part 2 and is connected with the split part 2, which is beneficial to the fixation of the suture line and the guidance during use.

[0038] Further, as shown in Figure 2 , Figure 3 , Figure 4 , the split part 2 comprises a split part main body 21 with a hollow structure, a driven rod assembly 22 arranged in the split part main body 21, one end of the split part main body 21 is movably connected with the main control part 1, and the other end is connected with the suture end part 3.

[0039] Further, as shown in Figure 3 , the main control part 1 comprises a trigger 11, a shell assembly 12 with a holding handle, a tail end rotating assembly 13 arranged outside the shell assembly 12, and a driving rod 14 arranged in the shell assembly 12, the tail end rotating assembly 13 is connected with one end of the driving rod 14 for fixing or loosening the driving rod 14, the trigger 11 is fixedly connected with the driving rod 14 for pushing the driving rod 14 to displace forward, and the driving rod 14 is connected with the driven rod assembly 22.

[0040] Further, the main control part 1 further comprises a split fixing assembly 15, one side of the split fixing assembly 15 is arranged inside the shell assembly 12 of the main control part 1 near one end of the split part main body 21, and the split part main body 21 is movably connected with the shell assembly 12 through the split fixing assembly 15.

[0041] Further, the split fixing assembly 15 comprises a split fixing part main body 151, a split movable part main body 152 and a first elastic member 153, the first elastic member 153 and the split movable part main body 153 are sequentially sleeved on the split fixing part main body 151 from inside to outside, and one end of the first elastic member 153 is fixedly connected with the split fixing part main body 151.

[0042] Further, a protrusion 1511 is arranged on the inner wall of the split fixing part main body 151, and a clamping groove 211 is arranged on the outer wall of the split part main body 21, and the protrusion 1511 is movably connected with the clamping groove 211.

[0043] Further, the driven rod assembly 22 comprises a first driven rod 221, a first bending piece 222, a first connecting rod 223, and a suture needle 224. The first driven rod 221 and the connecting rod 223 are respectively arranged at two ends of the bending piece 222 and fixedly connected with the first bending piece 232. The suture needle 224 is connected with the first connecting rod 223 at an end away from the first bending piece 222. The driving rod 14 in the main body control part 1 is connected with an end of the first driven rod 221 away from the first bending piece 222.

[0044] Further, as shown in Figure 5 , the suture end head part 3 comprises a first suture end head body 31 with a hollow structure and a thread fixing part 32. One end of the first suture end head body 31 is curved. The first suture end head body 31 is provided with a first through slot 311 for inserting and fixing the suture needle 234 and for suturing the damaged tissue. The side wall of the first through slot 311 is provided with a through hole for fixing the fixing part 32. The curved end of the first suture end head body 31 is fixedly connected with the split body main part 21.

[0045] Further, the bottom of the first suture end head body 31 is provided with a gap 343 for positioning the suture thread.

[0046] Further, as shown in Figure 2 , Figure 4 , Figure 5 , the bending angle of the first suture end head body 31 relative to the length direction of the split body main part 21 is 10-20 degrees.

[0047] Further, as shown in Figure 6 , Figure 7 , the suture thread fixing part 4 comprises a thread disc assembly 41, a thread disc positioning cylinder 42, a fixing buckle 43, and a connecting part 44. The thread disc positioning cylinder 42 is sleeved on the split body main part 21. The fixing buckle 43 is fixedly arranged on the thread disc positioning cylinder 42. The thread disc assembly 41 is arranged on the fixing buckle 43 and connected with the fixing buckle 43 through the connecting part 44.

[0048] Further, the thread disc assembly 41 comprises an upper disc body 411 and a lower disc body 412. The upper disc body 411 is fixedly connected with the lower disc body 412. The connecting part 44 is arranged in the upper disc body 411. The upper disc body 411 is connected with the fixing buckle 43 through the connecting part 44. The lower disc body 412 is provided with a boss 415 with a thread embedding groove 417 for winding the suture thread.

[0049] Further, as shown in Figure 2, As shown in Figure / 3, the main body control part 1 further comprises a third elastic assembly 16 arranged in the shell assembly 12, the third elastic assembly 16 is sleeved on the driving rod 14 for the return of the driving rod 14, and the driven rod assembly 22 further comprises a second elastic member 229, the second elastic member 229 is sleeved on the first driven rod 221 for the return of the first driven rod 221.

[0050] Further, as shown in Figure / 3, Figure 4 The first driven rod 221 is provided with a limiting piece 2211 on the end side wall away from the first bending piece 222 for the elastic force generated by the second elastic member 229.

[0051] Further, as shown in Figure / 3, Figure 2 , Figure 10 The tail end rotating assembly 13 comprises a tail end rotating piece 131 and a rotating fixing piece 132, the tail end rotating piece 131 is sleeved on the rotating fixing piece 132, and one end of the driving rod 14 is connected with the rotating fixing piece 132.

[0052] Further, the third elastic assembly 16 is a spring, and the shell assembly 12 is provided with a limiting protrusion 125 for the spring to generate elastic force, and the spring abuts against the limiting protrusion 125.

[0053] Further, a spring washer 16 is further arranged between the spring and the limiting protrusion 125, and the left and right shell bodies are effectively protected from being damaged by the spring through the arrangement of the spring washer 16.

[0054] Further, as shown in Figure / 3, Figure 2 , Figure 3 The shell assembly 12 comprises a main body left shell 122, a main body right shell 123 and a left and right shell fixing piece 124, and the left shell 122 and the right shell 123 are connected through the left and right shell fixing piece 124; through the arrangement of the shell assembly 12, the parts of the main body control part 1 are effectively fixed and limited.

[0055] The use process of the split type surgical suture device provided by the embodiment 1 is as follows:

[0056] 1) Rotate the tail end rotating piece 131 clockwise to release the fixation of the driving rod 14;

[0057] 2) Place the suture end head 3 into the required suture ligament tissue part through finger guidance, and fix the ligament tissue in the through groove by using the first through groove 311;

[0058] 3) Forcefully hold the trigger 11 towards the palm, at this time, the driving rod 14 pushes the driving rod assembly 22 to pass the thread plastic piece 33 through the ligament tissue, successfully enters the through groove of the fixing piece 32 and is fixed in the clamping groove of the first suture end head body 31 together with the fixing piece 32.

[0059] 4) Release the trigger 11, and the active lever 14 and the moving lever assembly 23 retract together, with the plastic part 33 with the wire end remaining in the front end slot;

[0060] 5) Move the suture position, then grip the trigger 11 tightly towards the palm of your hand. The active push rod 14 and the driven rod 22 pass through the ligament tissue again and reach the through groove of the fixation member 32.

[0061] 6. Press the end of the fixing part 32 with your finger and slowly release it together with the trigger 11. The suture needle 234 will bring the plastic part 33 with the thread end back to the initial position. At this time, the single suturing action is completed. To suturing continuously, simply repeat the above operation.

[0062] 7. After all the suturing is completed, remove the suture device, disassemble the separate part 2, and complete all the suturing.

[0063] Example 2

[0064] Embodiment 2 of the present invention provides a split-type surgical suture device, such as... Figure 9 As shown, the device includes a main control part 1, a split part 2, a suture end part 3, and a suture fixing part 4. One end of the split part 2 is movably connected to the main control part 1, and the other end is connected to the suture end part 3. The suture fixing part 4 is located outside the split part 2 and is connected to the split part 2. This structure, by setting a detachable split part between the main control part 1 and the suture end part 3, allows medical personnel to perform suture surgeries again after the surgery is completed, simply by replacing the split part 2. This achieves the reuse of the main control part 1 and effectively reduces the cost of manufacturing the suture device. At the same time, the suture fixing part, located outside the split part 2 and connected to the split part 2, facilitates the fixation of the suture and its guidance during use.

[0065] Furthermore, such as Figure 10 As shown, the split part 2 includes a hollow split body 21 and a driven rod assembly 22. The driven rod assembly 22 is disposed inside the split body 21. One end of the split body 21 is movably connected to the main body control part 1, and the other end is connected to the sewing end part 3.

[0066] Furthermore, the main control part 1 includes a trigger 11, a housing assembly 12 with a grip handle, a tail end rotating assembly 13 disposed outside the housing assembly 12, and an active rod 14 disposed inside the housing assembly 12. The tail end rotating assembly 13 is connected to one end of the active rod 14 for fixing or releasing the active rod 14. The trigger 11 is fixed to the active rod 14 for pushing the active rod 14 forward. The active rod 14 is connected to the driven rod assembly 22.

[0067] Further, the main control part 1 further comprises a split fixing assembly 15, one side of which is arranged in the main control part 1 inside the shell assembly 12 close to one end of the split part main body 21, and the split part main body 21 is movably connected with the shell assembly 12 through the split fixing assembly 15.

[0068] Further, the split fixing assembly 15 comprises a split fixing part main body 151, a split movable part main body 152, and a first elastic part 153, which are sequentially arranged from inside to outside on the split fixing part main body 151, and one end of the first elastic part 153 is fixedly connected with the split fixing part main body 151.

[0069] Further, a protrusion 1511 is arranged on the inner wall of the split fixing part main body 151, and a clamping groove 211 is arranged on the outer wall of the split part main body 21, and the protrusion 1511 is connected with the clamping groove 211 in cooperation.

[0070] Further, the driven rod assembly 22 comprises a second driven rod 225, a second bending part 226, a second connecting rod 227, and a suture needle assembly 228, the second driven rod 225 and the second connecting rod 226 are respectively arranged at two ends of the second bending part 226 and are fixedly connected with the second bending part 226, the suture needle assembly 228 is connected with one end of the second connecting rod 227 away from the second bending part 226, and the main control part 1 is connected with one end of the second driven rod 225 away from the second bending part 226 in cooperation.

[0071] Further, the suture needle assembly 228 comprises a push rod needle 2281 and a push rod cap 2282, the push rod cap 2282 is arranged on the end of the push rod needle 2281, and the bottom of the push rod needle 2281 is connected with the second connecting rod 227.

[0072] Further, the suture end part 3 comprises a hollow structure of a second suture end body 34, one end of which is curved, and one end of the second suture end body 34 is provided with a second through groove 341 for fixing the push rod needle 2281 and suturing the damaged tissue, and the groove wall of the second through groove 341 is provided with a fixing groove 342 for fixing the push rod cap 2282, and the curved end of the second suture end body 34 is fixedly connected with the split part main body 21.

[0073] Further, as shown in Figure 12 , the bottom of the second suture end body 34 is provided with a gap 343 for positioning the suture.

[0074] Further, as shown in Figure 10 , Figure 11 , the bending angle of the second suture end body 34 relative to the length direction of the split part main body 21 is 10-20 degrees.

[0075] Furthermore, such as Figure 6 , Figure 7 As shown, the suture fixing part 4 includes a suture coil assembly 41, a suture coil positioning cylinder 42, a fixing fastener 43, and a connector 44. The suture coil positioning cylinder 42 is sleeved on the main body 21 of the split part, the fixing fastener 43 is fixed on the suture coil positioning cylinder 42, and the suture coil assembly 41 passes through the fixing fastener 43 and is connected to the fixing fastener 43 through the connector 44.

[0076] Furthermore, the thread reel assembly 41 includes an upper reel body 411 and a lower reel body 412. The upper reel body 411 and the lower reel body 412 are fixedly connected. A connector 44 is disposed in the upper reel body 411. The upper reel body 411 is connected to the fixing fastener 43 through the connector 44. The lower reel body 412 is provided with a boss 415 having a thread end embedding groove 417 for wrapping the sewing thread.

[0077] Furthermore, such as Figure 10 , Figure 11 As shown, the main control part 1 also includes a third elastic component 16 disposed in the housing assembly 12. The third elastic component 16 is sleeved on the driving rod 14 for the return of the driving rod 14. The driven rod assembly 22 also includes a second elastic element 229, which is sleeved on the second driven rod 225 for the return of the second driven rod 225.

[0078] Furthermore, such as Figure 10 As shown, a limiting member 2211 for generating elastic force for the second elastic member 229 is provided on the side wall of the second driven rod 225 away from the second bending member 226.

[0079] Furthermore, the tail end rotating assembly 13 includes a tail end rotating component 131 and a rotating fixing component 132. The tail end rotating component 131 is sleeved on the rotating fixing component 132, and one end of the active rod 14 is connected to the rotating fixing component 132.

[0080] Furthermore, the third elastic component 16 is a spring, and the outer housing component 12 is provided with a limiting protrusion 125 for the spring to generate elasticity, and the spring abuts against the limiting protrusion 125.

[0081] Furthermore, a spring washer 17 is provided between the spring and the limiting protrusion 125, which effectively protects the left and right housings from being damaged by the spring.

[0082] Furthermore, such as Figure 3 As shown, the outer shell assembly 12 includes a main body left shell 122, a main body right shell 123, and left and right shell fixing members 124. The left shell 122 and the right shell 123 are connected by the left and right shell fixing members 124. By setting the outer shell assembly 12, some parts of the main body control part 1 are effectively fixed and restricted.

[0083] The use process of the split type surgical suture device provided by the embodiment 2 of the present application is as follows:

[0084] 1) Rotate the tail end rotating piece 131 clockwise to release the fixation of the driving rod 14;

[0085] 2) Place the suture head 3 into the required suture ligament tissue part by finger guidance, and fix the ligament tissue in the through slot by 341;

[0086] 3) Forcefully hold the trigger 11 towards the palm, at this time, the driving rod 14 pushes the movable rod assembly 22 to pass the fixed push rod cap 2382 through the ligament tissue and successfully send it into the fixed slot 342 through slot and clamping;

[0087] 4) Release the trigger 11, the driving rod 14 is retracted together with the movable rod assembly 22 part, the fixed push rod cap 2382 stays in the fixed slot 342 clamping slot, at this time, the first suture is completed;

[0088] 5) Take out the suture device, disassemble the suture line fixing part 4, replace the new suture line fixing part 4 component to continue the suture action;

[0089] 6) Take out the suture device, disassemble the split part 2, and complete the whole suture operation action.

[0090] The device of the present application is specially used for suture of tissues in deep and narrow space of body cavity; the present application sets the detachable split part 2 between the main control part 1 and the suture head part 3, so that when the operation is completed, the medical personnel only need to replace the split part to perform the suture operation again, so as to realize the reuse of the main control part 1, effectively reducing the cost of manufacturing the suture device; in addition, the structure is simple and convenient to operate, only a small space needs to be separated during the operation, the deep ligament tissue is probed by fingers, and the suture can be completed under the guidance of fingers, without direct vision, the success rate of one-time suture is high, and the suture can be repeated, greatly shortening the operation time, suture precision, not easy to injure adjacent organs, and reducing the side damage of operation.

[0091] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any change or replacement easily thought by the person skilled in the art within the technical range disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A divided surgical stapler, characterized by, The application relates to a suture device, which comprises a main body control part, a split part, a suture end head part and a suture line fixing part, one end of the split part is movably connected with the main body control part, the other end is connected with the suture end head part, and the suture line fixing part is arranged outside the split part and is connected with the split part. The main body control part comprises a trigger, a shell assembly with a holding handle, a tail end rotating assembly arranged outside the shell assembly and a driving rod arranged in the shell assembly, the tail end rotating assembly is movably connected with one end of the driving rod for fixing or loosening the driving rod, the trigger is fixedly connected with the driving rod for pushing the driving rod to move forward, and the driving rod is movably connected with a driven rod assembly. The main body control part further comprises a third elastic assembly arranged in the shell assembly, a limiting protrusion for the third elastic assembly to generate elasticity is arranged in the shell assembly, and the third elastic assembly is in abutment with the limiting protrusion. The split part comprises a split part body with a hollow structure and a driven rod assembly, the driven rod assembly is arranged in the split part body, one end of the split part body is movably connected with the main body control part, and the other end is connected with the suture end head part. The driven rod assembly comprises a suture needle or a suture needle assembly, the suture needle assembly comprises a push rod needle, the suture end head part comprises a suture end head body with a hollow structure and a thread fixing part, one end of the suture end head body is curved, one end of the suture end head body is provided with a through groove for placing and fixing the push rod needle in the suture needle or the suture needle assembly and suturing damaged tissue, a through hole for fixing the fixing part is arranged on the side wall of the through groove, and the curved end of the suture end head body is fixedly connected with the split part body. The suture line fixing part comprises a thread disc assembly, a thread disc positioning cylinder, a fixing buckle and a connecting piece, the thread disc positioning cylinder is sleeved on the split part body, the fixing buckle is fixedly arranged on the thread disc positioning cylinder, the thread disc assembly is arranged on the fixing buckle and is connected with the fixing buckle through the connecting piece.

2. The divided surgical stapler according to claim 1, wherein, The main body control part further comprises a split fixing assembly, one side of the split fixing assembly is arranged in the internal part of the shell assembly close to one end of the split part body in the main body control part, and the split part body is movably connected with the shell assembly through the split fixing assembly.

3. The surgical stapler of claim 2, wherein, The split fixing assembly comprises a split fixing part body, a split movable part body and a first elastic part, the first elastic part, the split movable part body are sequentially sleeved on the split fixing part body from inside to outside, and one end of the first elastic part is fixedly connected with the split fixing part body.

4. The divided surgical stapler according to claim 3, wherein A protrusion is arranged on the inner wall of the split fixing part body, a clamping groove is arranged on the outer wall of the split part body, and the protrusion is movably connected with the clamping groove.

5. The divided surgical stapler according to claim 4, wherein, The driven rod assembly further comprises a first driven rod, a first bending part and a first connecting rod, the driven rod and the connecting rod are respectively arranged at two ends of the bending part and are fixedly connected with the first bending part, the suture needle is connected with one end of the first connecting rod away from the first bending part, and the driving rod in the main body control part is movably connected with one end of the first driven rod away from the first bending part.

6. The divided surgical stapler according to claim 4, wherein The driven rod assembly further comprises a second driven rod, a second bending piece, and a second connecting rod, the second driven rod and the second connecting rod are respectively arranged at two ends of the second bending piece and are fixedly connected with the second bending piece, the suture needle assembly is connected with one end of the second connecting rod away from the second bending piece, and the main body control part is connected with one end of the second driven rod away from the second bending piece.

7. The divided surgical stapler according to claim 6, wherein, The suture needle assembly comprises a push rod needle and a push rod cap, the push rod cap is sleeved at the end of the push rod needle, and the bottom of the push rod needle is connected with the second connecting rod.

8. The divided surgical stapler according to any one of claims 5-7, wherein, The bottom of the suture end head body is provided with a gap for positioning the suture line.

9. The divided surgical stapler according to claim 8, wherein, The bending angle of the suture end head body relative to the length direction of the split part body is 10-20 degrees.

10. The divided surgical stapler according to claim 9, wherein, The wire disc assembly comprises an upper disc body and a lower disc body, the upper disc body and the lower disc body are fixedly connected, the connecting piece is arranged in the upper disc body, and the upper disc body is connected with the fixing buckle through the connecting piece; the lower disc body is provided with a boss for winding the suture line and having a wire end embedding groove.

11. The divided surgical stapler according to claim 10, wherein, The third elastic assembly is sleeved on the driving rod for the return of the driving rod, the driven rod assembly further comprises two second elastic pieces, and the two second elastic pieces are respectively sleeved on the first driven rod and the second driven rod for the return of the first driven rod and the second driven rod.

12. The divided surgical stapler according to claim 11, wherein, The first driven rod is provided with a limiting piece for the elastic force of the second elastic piece on the side wall of one end of the first driven rod away from the first bending piece, and the second driven rod is provided with a limiting piece for the elastic force of the second elastic piece on the side wall of one end of the second driven rod away from the second bending piece.

13. The divided surgical stapler according to claim 12, wherein, The tail end rotating assembly comprises a tail end rotating piece and a rotating fixing piece, the tail end rotating piece is sleeved on the rotating fixing piece, and one end of the driving rod is connected with the rotating fixing piece.

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