Laparoscopic stapler stapler and laparoscopic stapler

Abstract

The present invention relates to the technical field of laparoscopic staplers, and discloses a stapling chuck of a laparoscopic stapler, including a connecting portion, a staple magazine support, and a staple support; the stapling chuck also includes an electrocoagulation hemostasis portion, and the electrocoagulation hemostasis portion includes a main electrocoagulation plate and an auxiliary electrocoagulation plate, and the positions of the main electrocoagulation plate and the auxiliary electrocoagulation plate correspond to each other; when the main electrocoagulation plate and the auxiliary electrocoagulation plate are not powered on, the control module can control the main electrocoagulation plate and the auxiliary electrocoagulation plate to be powered on to perform electrocoagulation hemostasis on the anastomosis during the process of maintaining pressure on the anastomosis after controlling the firing assembly to fire the suture staples. The present invention performs cutting and stapling operations on the patient's affected part through the stapling chuck, and the stapling chuck can also maintain pressure on the anastomosis and perform electrocoagulation hemostasis, which can effectively ensure the completion of the cutting and suturing operation on the anastomosis, ensure the closure of the anastomosis, reduce postoperative bleeding, and improve the treatment effect on the anastomosis. The present invention also discloses a laparoscopic stapler.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic staplers, in particular to a stapling chuck of a laparoscopic stapler and a laparoscopic stapler. Background Art

[0002] Laparoscopic staplers (laparoscopic cutting staplers and disposable stapler boxes) are one of the important instruments for laparoscopic surgery. They replace traditional manual suturing and use titanium staples to separate or staple tissues. They are easy and quick to operate, greatly shortening the operation time. Laparoscopic stapler surgery makes it easier to perform anastomosis that is difficult to perform manually in areas with narrow fields of view and deep parts. It is accurate, firm and reliable, and significantly reduces the incidence of anastomotic leakage.

[0003] During the use of the laparoscopic stapler, the affected area (anastomosis) is cut and stapled successively. The cutting operation and stapled stapling will damage the blood vessels, resulting in bleeding at the anastomosis. The existing hemostasis solution is for medical personnel to insert hemostatic forceps into the anastomosis to suppress the bleeding at the anastomosis. However, since the operating range of the laparoscopic stapler itself is relatively small, the intervention of hemostatic forceps is inconvenient, and the bleeding at the anastomosis cannot be suppressed. Especially in the treatment of patients with poor coagulation, it is difficult to stop bleeding, which is prone to greater risks.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a stapling chuck of a laparoscopic stapler and a laparoscopic stapler;

[0006] A stapling chuck of a laparoscopic stapler, the stapling chuck is used as an execution end of the laparoscopic stapler, the stapling chuck is used to perform cutting and stapling operations of the stapler, the stapling chuck comprises a connecting portion, a staple magazine support and a staple anvil, the connecting portion is used to connect to the laparoscopic stapler, a control module is arranged inside the staple magazine support, a staple storage magazine is arranged on a side of the staple magazine support close to the staple anvil, a firing assembly capable of driving the suture staples inside the staple storage magazine to fire is also arranged inside the staple magazine support; the stapling chuck also comprises an electrocoagulation hemostasis portion, the electrocoagulation hemostasis portion comprises a main electrocoagulation plate and a secondary electrocoagulation plate, the main electrocoagulation plate is installed inside the staple The magazine bracket is close to one side of the nail support, and the auxiliary coagulation plate is installed on the side of the nail support close to the nail magazine bracket, and the positions of the main coagulation plate and the auxiliary coagulation plate correspond to each other; when the main coagulation plate and the auxiliary coagulation plate are not powered on, they are respectively hidden inside the surfaces of the nail magazine bracket and the nail support close to each other, and when the main coagulation plate and the auxiliary coagulation plate are powered on, the main coagulation plate and the auxiliary coagulation plate are respectively lifted and close to each other; the control module can control the main coagulation plate and the auxiliary coagulation plate to be powered on to perform electrocoagulation and hemostasis on the anastomosis during the pressure maintenance process of the anastomosis after controlling the firing assembly to fire the suture nail.

[0007] Preferably, the connecting portion includes a rotating connecting end and a movable connecting end, the rotating connecting end is rotationally connected to the connecting rod of the laparoscopic stapler, the movable connecting end is fixedly connected to the staple magazine support, and the movable connecting end is rotationally connected to the stapler seat; through the rotating connection between the rotating connecting end and the connecting rod of the laparoscopic stapler, the angle of the stapling chuck can be adjusted as a whole; through the rotating connection between the movable connecting end and the stapler seat, the angle between the stapler magazine support and the stapler seat can be adjusted.

[0008] Preferably, one side of the nail magazine bracket close to the nail anvil is sequentially arranged with a cutting knife, the main electrocoagulation plate and the nail storage magazine from the center to both ends, and one side of the nail anvil close to the nail magazine bracket is sequentially arranged with a knife groove, the auxiliary electrocoagulation plate and the nail anvil plate from the center to both ends; the cutting knife corresponds to the position of the knife groove, the cutting knife can move inside the knife groove, the position of the nail storage magazine and the nail anvil plate corresponds to each other, and the suture nails inside the nail storage magazine can be extruded into shape by the nail anvil plate after the firing assembly is fired.

[0009] Preferably, the firing assembly includes a nail pushing plate and a firing connecting section, one end of the connecting section is fixed to the cutting knife, and the other end of the firing connecting section is fixed to the center of the nail pushing plate; nail pushing blocks are also provided on both sides of the nail pushing plate, and the nail pushing blocks can move along the position of the nail storage bin close to the firing connecting section to the position of the nail storage bin away from the connecting section, and sequentially extrude the suture staples inside the nail storage bin on the path.

[0010] Preferably, the cutting knife moves synchronously with the nail pushing plate, and the starting position of the cutting knife is farther away from the connecting portion than the nail pushing block. The cutting knife can first cut the anastomosis, and then the nail pushing block pushes the suture nails at the anastomosis to extrude and form.

[0011] Preferably, the firing assembly also includes a limiting track, the nail pushing plate is fitted with the limiting track, a driving screw is arranged in the center of the limiting track, and a driving motor is arranged at one end of the driving screw; the output end of the driving motor is fixed to the driving screw, and the driving screw can be driven by the driving motor to rotate under the restriction of the limiting track, the driving screw is threadedly connected to the nail pushing plate, and the driving screw can drive the nail pushing plate to move along the limiting track when driven to rotate.

[0012] Preferably, one end of the main coagulation plate is rotatably connected to the nail magazine bracket, and the other end of the main coagulation plate is provided with a main lifting rod located inside the nail magazine bracket, and the movable end of the main lifting rod is extended to lift the main coagulation plate close to one end of the main lifting rod around the rotatable connection between the other end and the nail magazine bracket; one end of the auxiliary coagulation plate is rotatably connected to the nail support, and the other end of the auxiliary coagulation plate is provided with a auxiliary lifting rod located inside the nail support, and the movable end of the auxiliary lifting rod is extended to lift the auxiliary coagulation plate close to one end of the auxiliary lifting rod around the rotatable connection between the other end and the nail support.

[0013] Preferably, the end of the main coagulation plate that can be lifted is opposite to the end of the auxiliary coagulation plate that can be lifted, the lifting of the main coagulation plate and the auxiliary coagulation plate is carried out simultaneously, and after the main coagulation plate and the auxiliary coagulation plate are lifted, uniform force can be applied to the anastomosis between the main coagulation plate and the auxiliary coagulation plate.

[0014] Preferably, after the main electrocoagulation plate and the auxiliary electrocoagulation plate are lifted, while uniform force is applied to the anastomosis to maintain pressure, the main electrocoagulation plate and the auxiliary electrocoagulation plate are respectively energized as the positive plate and the negative plate, and a connecting circuit is formed between the tissues at the anastomosis. After the main electrocoagulation plate and the auxiliary electrocoagulation plate are energized, electric heat is generated to electrocoagulate and stop bleeding at the anastomosis.

[0015] A laparoscopic stapler, and a stapling chuck of the laparoscopic stapler.

[0016] Compared with the prior art, the present invention provides a stapling chuck of a laparoscopic stapler and a laparoscopic stapler, which have the following beneficial effects:

[0017] 1. The stapling chuck of the laparoscopic stapler performs cutting and stapling operations on the patient's affected area through the stapling chuck. The stapling chuck can also maintain pressure on the anastomosis and perform electrocoagulation to stop bleeding, which can effectively ensure the completion of the cutting and suturing operation on the anastomosis, ensure the closure of the anastomosis, reduce postoperative bleeding, and improve the treatment effect on the anastomosis.

[0018] 2. For the stapling chuck of this type of laparoscopic stapler, after cutting and stapling are completed, the stapler bracket and the staple anvil remain in a closed state to maintain pressure on the tissue at the anastomosis. During the pressure-maintaining process, the control module energizes the main coagulation plate and the auxiliary coagulation plate, so that the main coagulation plate and the auxiliary coagulation plate are respectively lifted and moved closer to each other, and further pressure is provided to the tissue between the main coagulation plate and the auxiliary coagulation plate, so that an electrical circuit is formed between the main coagulation plate and the auxiliary coagulation plate and the compressed tissue. Then, the control module passes high-frequency current through the main coagulation plate and the auxiliary coagulation plate to perform electrocoagulation hemostasis on the anastomosis. After hemostasis is completed, the main coagulation plate and the auxiliary coagulation plate are powered off, reset, and the stapler bracket and the staple anvil are opened to complete the anastomosis operation on the anastomosis, thereby ensuring the closure of the anastomosis, reducing postoperative bleeding, and improving the treatment effect on the anastomosis.

[0019] 3. The stapling chuck of the laparoscopic stapler cuts off the tissue at the anastomosis clamped by the staple magazine support and the staple anvil by moving the cutting knife inside the knife groove, and then stimulates the suture staples inside the staple magazine through the firing assembly, so that the suture staples in the staple magazines on both sides of the cutting knife can be extruded and formed on the staple anvil plates at corresponding positions, and the tissues on both sides of the cut anastomosis are stapled, and then the corresponding main electrocoagulation plate and auxiliary electrocoagulation plate are used to electrocoagulate and stop bleeding on the tissues on both sides of the cut anastomosis, and the surgical operation on the tissues on both sides is completed at the same time, which greatly shortens the operation time while ensuring the quality of the operation and reduces the risk of excessive operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the laparoscopic stapler of the present invention;

[0021] Figure 2 It is one of the three-dimensional structural schematic diagrams of the stapling chuck of the present invention;

[0022] Figure 3 The second schematic diagram of the three-dimensional structure of the stapling chuck of the present invention;

[0023] Figure 4The third schematic diagram of the three-dimensional structure of the stapling chuck of the present invention;

[0024] Figure 5 It is a schematic diagram of the firing state of the stapling chuck of the present invention;

[0025] Figure 6 It is a cross-sectional schematic diagram of the firing state of the stapling chuck of the present invention;

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the nail magazine support and the firing assembly of the present invention;

[0027] Figure 8 It is a schematic cross-sectional structure diagram of the nail magazine support and the firing assembly of the present invention.

[0028] In the figure: 1. connecting part; 11. rotating connecting end; 12. movable connecting end; 2. nail magazine bracket; 3. nail support seat; 31. knife groove; 32. nail support plate; 5. nail storage magazine; 6. firing assembly; 61. nail push plate; 611. nail push block; 62. firing connecting section; 63. limiting track; 64. driving screw; 65. driving motor; 7. main electrocoagulation plate; 71. main lifting rod; 8. auxiliary electrocoagulation plate; 81. auxiliary lifting rod; 9. cutting knife. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a stapling chuck of a laparoscopic stapler and a laparoscopic stapler.

[0031] Embodiment 1:

[0032] Please refer to Figure 1-Figure 8A stapling chuck of a laparoscopic stapler, the stapling chuck is used as an execution end of the laparoscopic stapler, and is used to perform cutting and stapling operations of the stapler. The stapling chuck comprises a connecting portion 1, a staple magazine support 2 and a staple support 3. The connecting portion 1 is used to connect with the laparoscopic stapler, a control module is arranged inside the staple magazine support 2, a staple storage bin 5 is arranged on a side of the staple magazine support 2 close to the staple support 3, and a firing assembly 6 capable of driving the suture staples in the staple storage bin 5 to fire is also arranged inside the staple magazine support 2; the stapling chuck also comprises an electrocoagulation hemostasis portion, and the electrocoagulation hemostasis portion comprises a main electrocoagulation plate 7 and an auxiliary electrocoagulation plate 8, the main electrocoagulation plate 7 It is installed on one side of the staple magazine bracket 2 close to the staple seat 3, and the auxiliary electrocoagulation plate 8 is installed on one side of the staple seat 3 close to the staple magazine bracket 2, and the positions of the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 correspond to each other; when the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are not powered on, they are respectively hidden inside the surfaces close to the staple magazine bracket 2 and the staple seat 3, and when the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are powered on, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are respectively lifted and close to each other; the control module can control the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 to be powered on to perform electrocoagulation and hemostasis on the anastomosis during the process of maintaining pressure on the anastomosis after controlling the firing assembly 6 to fire the suture staples.

[0033] This stapling chuck is used as the execution end of the laparoscopic stapler. During the laparoscopic surgery, the entire laparoscopic stapler performs cutting and stapling operations on the patient's affected part (anastomosis) through the stapling chuck. The stapling chuck can also maintain pressure on the anastomosis and perform electrocoagulation to stop bleeding, which can effectively ensure the completion of the cutting and suturing (stapling) operation on the anastomosis, ensure the closure of the anastomosis, reduce postoperative bleeding, and improve the treatment effect on the anastomosis. When in use, the stapling chuck connected to the handle of the laparoscopic stapler is placed on the patient's affected part (anastomosis) through the handle of the laparoscopic stapler. The stapling chuck of the laparoscopic stapler is connected to the handle of the laparoscopic stapler through the connecting part 1. When the stapling operation is required, the stapler bracket 2 drives the stapler storage bin 5 to approach the stapler seat 3 and applies a certain degree of pressure to the tissue at the stapling site between the stapler bracket 2 and the stapler seat 3 to fix the tissue at the stapling site between the stapler bracket 2 and the stapler seat 3. The control module arranged inside the stapler bracket 2 receives the firing signal transmitted through the handle of the laparoscopic stapler. After the control module receives the firing signal, the firing assembly 6 receives the drive to start stapling. The tissue at the anastomosis is cut, and then the cut anastomosis tissue is fired by the firing assembly 6 to fire the suture staples in the staple storage bin 5, and the cut anastomosis tissue is stapled. After the cutting and stapling are completed, the staple magazine support 2 and the staple support 3 are still in a closed state to maintain the pressure of the anastomosis tissue. During the pressure maintenance process, the control module energizes the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8, so that the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are respectively lifted and approached to each other, and further pressure is provided to the tissue between the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8. So that an electrical circuit is formed between the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 and the compressed tissue, the control module then passes high-frequency current (high-frequency current refers to current with a frequency higher than 50 Hz) through the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 to perform electrocoagulation hemostasis on the anastomosis. After hemostasis is completed, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are powered off, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are reset, the staple magazine support 2 and the staple support 3 are opened, and the anastomosis operation on the anastomosis is completed to ensure the closure of the anastomosis, which can reduce postoperative bleeding and improve the treatment effect on the anastomosis.

[0034] For further information, please refer to Figure 1-Figure 3 The connecting portion 1 includes a rotating connecting end 11 and a movable connecting end 12, the rotating connecting end 11 is rotationally connected to the connecting rod of the laparoscopic stapler, the movable connecting end 12 is fixedly connected to the staple magazine support 2, and the movable connecting end 12 is rotationally connected to the stapler support 3; through the rotating connection between the rotating connecting end 11 and the connecting rod of the laparoscopic stapler, the angle of the stapling chuck can be adjusted as a whole; through the rotating connection between the movable connecting end 12 and the stapler support 3, the angle between the stapler support 2 and the stapler support 3 can be adjusted.

[0035] When in use, through the rotational connection between the rotating connecting end 11 of the connecting part 1 and the connecting rod of the laparoscopic stapler, the connecting rod of the laparoscopic stapler can drive the connecting part 1 and even the entire stapling chuck to adjust the angle through the push of the connecting rod (the working principle of the connecting rod driving the rotation of the stapling chuck is that the connecting rod pushes the stapling chuck to rotate around the connecting axis of the rotational connection between the rotating connecting end 11 and the laparoscopic stapler); through the fixed connection between the connecting part 1 and the staple magazine 2, and then the anvil 3 and the connecting part 1 are rotationally connected through the movable connecting end 12, so that the anvil 3 can rotate around the rotation axis, thereby adjusting the angle between the staple magazine support 2 and the anvil 3, and the principle of driving the rotation of the anvil 3 is a common technical means in the prior art, which will not be repeated here (the same rotation principle can be used for the angle adjustment of the stapling chuck), so that the stapling chuck can perform the clamping operation of the tissue at the anastomosis by adjusting the angle between the staple magazine support 2 and the anvil 3.

[0036] For further information, please refer to Figure 2-Figure 4 The side of the nail magazine bracket 2 close to the nail support seat 3 is sequentially arranged with a cutting knife 9, a main electrocoagulation plate 7 and a nail storage bin 5 from the center to both ends, and the side of the nail support seat 3 close to the nail magazine bracket 2 is sequentially arranged with a knife groove 31, a secondary electrocoagulation plate 8 and a nail support plate 32 from the center to both ends; the cutting knife 9 corresponds to the position of the knife groove 31, and the cutting knife 9 can move inside the knife groove 31, the position of the nail storage bin 5 and the nail support plate 32 corresponds to each other, and the suture nails inside the nail storage bin 5 can be extruded and formed by the nail support plate 32 after the firing assembly 6 is fired.

[0037] Therefore, when in use, the cutting knife 9 can be moved inside the knife groove 31, so that the tissue at the anastomosis clamped by the staple magazine support 2 and the staple support seat 3 can be cut off by the cutting knife 9, and then the suture staples inside the staple storage magazine 5 can be stimulated by the firing assembly 6, so that the suture staples in the staple storage magazine 5 on both sides of the cutting knife 9 can be forced to be extruded and formed on the staple support plates 32 at the corresponding positions, and the tissues on both sides of the cut anastomosis are stapled, and then the correspondingly arranged main electrocoagulation plate 7 and auxiliary electrocoagulation plate 8 are used to electrocoagulate and stop bleeding on the tissues on both sides of the cut anastomosis, and the surgical operation on the tissues on both sides is completed at the same time, while ensuring the quality of the operation, greatly shortening the operation time and reducing the risk of excessive operation time.

[0038] For further information, please refer to Figure 7-Figure 8 The firing assembly 6 includes a nail pushing plate 61 and a firing connecting section 62, one end of the firing connecting section 62 is fixed to the cutting knife 9, and the other end of the firing connecting section 62 is fixed to the center of the nail pushing plate 61; nail pushing blocks 611 are also provided on both sides of the nail pushing plate 61, and the nail pushing blocks 611 can move along the position of the nail storage bin 5 close to the connecting part 1 to the position of the nail storage bin 5 far away from the connecting part 1, and extrude the suture nails inside the nail storage bin 5 on the path in turn.

[0039] The cutting knife 9 moves synchronously with the nail pushing plate 61 , and the starting position of the cutting knife 9 is farther away from the connecting portion 1 than the nail pushing block 611 . The cutting knife 9 can first cut the anastomosis, and then the nail pushing block 611 pushes the suture nails at the anastomosis to extrude and form.

[0040] Therefore, when in use, since the starting position of the cutting knife 9 is farther away from the connecting part 1 than the nail pushing block 611, when the cutting knife 9 and the nail pushing plate 61 move at the same time, the cutting knife 9 can first cut the anastomosis, and then the nail pushing block 611 pushes the suture nails at the anastomosis to be extruded and formed, and moves along the position of the nail storage bin 5 close to the connecting part 1 to the position of the nail storage bin 5 far away from the connecting part 1, first cutting the tissue on the path, and then successively extruding the suture nails inside the nail storage bin 5 on the path to suture the tissues on both sides.

[0041] For further information, please refer to Figure 7-Figure 8 The firing assembly 6 also includes a limiting track 63, the push pin plate 61 is fitted with the limiting track 63, a driving screw 64 is arranged in the center of the limiting track 63, and a driving motor 65 is arranged at one end of the driving screw 64; the output end of the driving motor 65 is fixed to the driving screw 64, and the driving screw 64 can be driven by the driving motor 65 to rotate under the restriction of the limiting track 63. The driving screw 64 is threadedly connected to the push pin plate 61, and the driving screw 64 is driven to rotate to drive the push pin plate 61 to move along the limiting track 63.

[0042] When in use, the drive motor 65 is controlled by the control module to be energized and output power through the output shaft, driving the drive screw 64 to rotate within the limitation of the limiting track 63. Through the threaded connection between the drive screw 64 and the nail pushing plate 61, the drive screw 64 is driven to rotate and drives the nail pushing plate 61 to move along the limiting track 63, so as to push the cutting knife 9 and the nail pushing plate 61 to move at the same time, and perform cutting and nailing operations at the same time.

[0043] For further information, please refer to Figure 3-Figure 6 One end of the main electrocoagulation plate 7 is rotatably connected to the nail magazine bracket 2, and the other end of the main electrocoagulation plate 7 is provided with a main lifting rod 71 located inside the nail magazine bracket 2. The movable end of the main lifting rod 71 is extended to lift the end of the main electrocoagulation plate 7 close to the main lifting rod 71 around the rotational connection between the other end and the nail magazine bracket 2; one end of the auxiliary electrocoagulation plate 8 is rotatably connected to the nail support 3, and the other end of the auxiliary electrocoagulation plate 8 is provided with a auxiliary lifting rod 81 located inside the nail support 3. The movable end of the auxiliary lifting rod 81 is extended to lift the end of the auxiliary electrocoagulation plate 8 close to the auxiliary lifting rod 81 around the rotational connection between the other end and the nail support 3.

[0044] The end of the main coagulation plate 7 that can be lifted is opposite to the end of the auxiliary coagulation plate 8 that can be lifted. The lifting of the main coagulation plate 7 and the auxiliary coagulation plate 8 is carried out simultaneously, and after the main coagulation plate 7 and the auxiliary coagulation plate 8 are lifted, uniform force can be applied to the anastomosis between the main coagulation plate 7 and the auxiliary coagulation plate 8.

[0045] After the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are lifted, they apply uniform force and maintain pressure on the anastomosis. At the same time, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are energized as the positive plate and the negative plate respectively, and a connecting circuit is formed between the tissues at the anastomosis. After the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are energized, electric heat is generated to electrocoagulate and stop bleeding at the anastomosis.

[0046] After the cutting and stapling are completed, the nail magazine support 2 and the nail support seat 3 are still in a closed state to maintain the pressure on the tissue at the anastomosis. During the pressure maintaining process, the control module energizes the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8. After power is turned on, the movable ends of the main lifting rod 71 and the auxiliary lifting rod 81 are extended. The movable end of the main lifting rod 71 is extended to lift the end of the main electrocoagulation plate 7 close to the main lifting rod 71 around the rotation connection between the other end and the nail magazine support 2, and the movable end of the auxiliary lifting rod 81 is extended to lift the end of the auxiliary electrocoagulation plate 8 close to the auxiliary lifting rod 81 around the rotation connection between the other end and the nail support seat 3; since the end of the main electrocoagulation plate 7 that can be lifted is connected to the auxiliary lifting rod 81, the lifting end of the auxiliary electrocoagulation plate 8 can be lifted. The end of the electrocoagulation plate 8 that can be lifted is in the opposite position, and the lifting of the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 is carried out simultaneously, so that the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are respectively lifted and approach each other, further providing pressure to the tissue between the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8; after the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are lifted, while uniform force is applied to the anastomosis to maintain pressure, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are respectively energized as the positive plate and the negative plate, and a connecting circuit is formed between the tissue at the anastomosis, and the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are energized to generate electric heat to electrocoagulate and stop bleeding at the anastomosis, thereby reducing postoperative bleeding and improving the treatment effect on the anastomosis.

[0047] Working principle:

[0048] This type of stapling chuck is used as the execution end of the laparoscopic stapler. During the laparoscopic surgery, the entire laparoscopic stapler performs cutting and stapling operations on the patient's affected area (anastomosis) through the stapling chuck;

[0049] When in use, the stapling chuck connected to the handle of the laparoscopic stapler is placed on the affected part through the handle of the laparoscopic stapler. The stapling chuck of the laparoscopic stapler is connected to the handle of the laparoscopic stapler through the connecting part 1, and is rotatably connected to the connecting rod of the laparoscopic stapler through the rotating connecting end 11 of the connecting part 1. The connecting rod of the laparoscopic stapler can drive the connecting part 1 and even the entire stapling chuck to adjust the angle through the push of the connecting rod; the connecting part 1 is fixedly connected to the staple magazine 2, and then the anvil 3 is rotatably connected to the connecting part 1 through the movable connecting end 12, so that the anvil 3 can rotate around the rotating axis, so that the angle between the staple magazine support 2 and the anvil 3 is adjusted, and the stapling chuck performs the clamping operation on the tissue at the anastomosis;

[0050] When anastomosis is required, the staple magazine support 2 drives the staple magazine 5 to approach the stapler seat 3 and applies a certain degree of pressure to the tissue at the anastomosis between the staple magazine support 2 and the stapler seat 3, so as to fix the tissue at the anastomosis between the staple magazine support 2 and the stapler seat 3. The control module arranged inside the staple magazine support 2 receives the firing signal transmitted through the handle of the laparoscopic stapler. After receiving the firing signal, the driving motor 65 is energized under the control of the control module to output power through the output shaft, thereby driving the driving screw 64 to rotate under the restriction of the limiting track 63, and the driving screw 64 is threadedly connected to the staple push plate 61. The screw 64 is driven to rotate and drive the nail pushing plate 61 to move along the limiting track 63, so as to push the cutting knife 9 and the nail pushing plate 61 to move simultaneously. Since the starting position of the cutting knife 9 is farther away from the connecting part 1 than the nail pushing block 611, when the cutting knife 9 and the nail pushing plate 61 move simultaneously, the cutting knife 9 can first cut the anastomosis, and then the nail pushing block 611 pushes the suture nails at the anastomosis to be extruded and formed, and moves along the position of the nail storage bin 5 close to the connecting part 1 to the position of the nail storage bin 5 far away from the connecting part 1, first cutting the tissue on the path, and then sequentially extruding the suture nails inside the nail storage bin 5 on the path to suture the tissues on both sides;

[0051] After the cutting and stapling are completed, the nail magazine support 2 and the nail support seat 3 are still in a closed state to maintain the pressure on the tissue at the anastomosis. During the pressure maintaining process, the control module energizes the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8. After power-on, the movable ends of the main lifting rod 71 and the auxiliary lifting rod 81 are extended. The movable end of the main lifting rod 71 is extended to lift the end of the main electrocoagulation plate 7 close to the main lifting rod 71 around the rotation connection between the other end and the nail magazine support 2, and the movable end of the auxiliary lifting rod 81 is extended to lift the end of the auxiliary electrocoagulation plate 8 close to the auxiliary lifting rod 81 around the rotation connection between the other end and the nail support seat 3; because the end of the main electrocoagulation plate 7 that can be lifted is opposite to the end of the auxiliary electrocoagulation plate 8 that can be lifted, the lifting of the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 is carried out simultaneously, so that the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are separated. The two plates are lifted separately and brought closer to each other to further provide pressure on the tissue between the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8; after the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are lifted, while uniform force is applied to the anastomosis to maintain pressure, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are powered on as the positive plate and the negative plate respectively, and a connecting loop is formed with the tissue at the anastomosis, and then the control module passes high-frequency current through the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8. After the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are powered on, electric heat is generated to perform electrocoagulation hemostasis on the anastomosis to reduce postoperative bleeding. After hemostasis is completed, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are powered off, the main electrocoagulation plate 7 and the auxiliary electrocoagulation plate 8 are reset, the nail magazine bracket 2 and the nail support 3 are opened, and the anastomosis operation on the anastomosis is completed to ensure the closure of the anastomosis, which can reduce postoperative bleeding and improve the treatment effect on the anastomosis.

[0052] Embodiment 2:

[0053] Please refer to Figure 1 A laparoscopic stapler uses a stapling chuck of a laparoscopic stapler as described in Example 1. The laparoscopic stapler performs the cutting and stapling operations of the stapler through the stapling chuck of the laparoscopic stapler as described in Example 1, and can perform electrocoagulation and hemostasis on the anastomotic site.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stapling chuck of a laparoscopic stapler, the stapling chuck is used as an execution end of the laparoscopic stapler, the stapling chuck is used to perform cutting and stapling operations of the stapler, and is characterized by: The stapling chuck comprises a connecting portion, a stapler bracket and a stapler seat, wherein the connecting portion is used to connect to the laparoscopic stapler, a control module is arranged inside the stapler bracket, a stapler storage bin is arranged on a side of the stapler bracket close to the stapler seat, and a firing assembly capable of driving the suture staples inside the stapler storage bin to fire is also arranged inside the stapler bracket; The stapling chuck also includes an electrocoagulation hemostasis part, which includes a main electrocoagulation plate and an auxiliary electrocoagulation plate. The main electrocoagulation plate is installed on a side of the nail magazine bracket close to the nail support, and the auxiliary electrocoagulation plate is installed on a side of the nail support close to the nail magazine bracket. The positions of the main electrocoagulation plate and the auxiliary electrocoagulation plate correspond to each other. When the main electrocoagulation plate and the auxiliary electrocoagulation plate are not powered on, they are respectively hidden inside the surfaces of the nail magazine support and the nail support that are close to each other. When the main electrocoagulation plate and the auxiliary electrocoagulation plate are powered on, the main electrocoagulation plate and the auxiliary electrocoagulation plate are respectively lifted and close to each other. The control module can control the main electrocoagulation plate and the auxiliary electrocoagulation plate to be energized to perform electrocoagulation and hemostasis on the anastomosis during the process of maintaining pressure on the anastomosis after controlling the firing assembly to fire the suture staple; One end of the main electrocoagulation plate is rotatably connected to the nail magazine bracket, and the other end of the main electrocoagulation plate is provided with a main lifting rod located inside the nail magazine bracket, and the movable end of the main lifting rod is extended to lift the main electrocoagulation plate close to one end of the main lifting rod around the rotatable connection between the other end and the nail magazine bracket; One end of the auxiliary electrocoagulation plate is rotatably connected to the anvil seat, and the other end of the auxiliary electrocoagulation plate is provided with an auxiliary lifting rod located inside the anvil seat, and the movable end of the auxiliary lifting rod is extended to lift the auxiliary electrocoagulation plate close to one end of the auxiliary lifting rod around the rotatable connection between the other end and the anvil seat; The end of the main coagulation plate that can be lifted is opposite to the end of the auxiliary coagulation plate that can be lifted. The lifting of the main coagulation plate and the auxiliary coagulation plate is carried out simultaneously, and after the main coagulation plate and the auxiliary coagulation plate are lifted, uniform force can be applied to the anastomosis between the main coagulation plate and the auxiliary coagulation plate.

2. The stapling chuck of a laparoscopic stapler according to claim 1, characterized in that: The connecting portion comprises a rotating connecting end and a movable connecting end, wherein the rotating connecting end is rotatably connected to the connecting rod of the laparoscopic stapler, the movable connecting end is fixedly connected to the staple cartridge support, and the movable connecting end is rotatably connected to the staple support; The angle of the stapling chuck can be adjusted as a whole through the rotational connection between the rotational connection end and the connecting rod of the laparoscopic stapler; The angle between the nail magazine support and the nail support can be adjusted through the rotational connection between the movable connection end and the nail support.

3. The stapling chuck of a laparoscopic stapler according to claim 1, characterized in that: A side of the nail magazine support close to the nail anvil is provided with a cutting knife, the main electrocoagulation plate and the nail storage magazine in sequence from the center to both ends, and a side of the nail anvil close to the nail magazine support is provided with a knife groove, the auxiliary electrocoagulation plate and the nail anvil in sequence from the center to both ends; The cutting knife corresponds to the knife groove in position, and the cutting knife can move inside the knife groove. The nail storage bin corresponds to the nail support plate in position, and the suture nails inside the nail storage bin can be extruded and formed by the nail support plate after the firing assembly is fired.

4. The stapling chuck of a laparoscopic stapler according to claim 3, characterized in that: The firing assembly includes a nail pushing plate and a firing connecting section, one end of the firing connecting section is fixed to the cutting knife, and the other end of the firing connecting section is fixed to the center of the nail pushing plate; Nail pushing blocks are also provided on both sides of the nail pushing plate. The nail pushing blocks can move along the position of the nail storage bin close to the connecting portion to the position of the nail storage bin away from the connecting portion, and sequentially extrude the suture nails inside the nail storage bin on the path.

5. The stapling chuck of a laparoscopic stapler according to claim 4, characterized in that: The cutting knife moves synchronously with the nail pushing plate, and the starting position of the cutting knife is farther from the connecting portion than the nail pushing block. The cutting knife can cut the anastomosis first, and then the nail pushing block pushes the suture nails at the anastomosis to extrude and form.

6. The stapling chuck of a laparoscopic stapler according to claim 4, characterized in that: The firing assembly further includes a limiting track, the nail pushing plate is fitted with the limiting track, a driving screw is arranged at the center of the limiting track, and a driving motor is arranged at one end of the driving screw; The output end of the driving motor is fixed to the driving screw, and the driving screw can be driven by the driving motor to rotate under the restriction of the limiting track. The driving screw is threadedly connected to the nail pushing plate, and the driving screw can be driven to rotate to drive the nail pushing plate to move along the limiting track.

7. The stapling chuck of a laparoscopic stapler according to claim 1, characterized in that: After the main electrocoagulation plate and the auxiliary electrocoagulation plate are lifted, they apply force and pressure evenly to the anastomosis, and at the same time, they are energized as the positive plate and the negative plate respectively, and form a connecting loop with the tissue at the anastomosis. After the main electrocoagulation plate and the auxiliary electrocoagulation plate are energized, they generate electric heat to electrocoagulate and stop bleeding at the anastomosis.

8. A laparoscopic stapler, characterized in that: A stapling chuck of a laparoscopic stapler as described in any one of claims 1 to 7 is used.

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