Surgical suturing device

Abstract

The utility model relates to a surgical suturing device which comprises a percussion handle, a nail bin assembly, a connecting component used for connecting the nail bin assembly and the percussion handle, a nail abutting seat mechanism and a connecting piece used for connecting the nail abutting seat mechanism and the percussion handle. A camera is arranged in the nail abutting seat mechanism, and the nail abutting seat mechanism is arranged to rotate relative to the percussion handle so that the camera can rotate relative to the percussion handle. According to the haemorrhoid cutting and suturing device, the camera is additionally arranged, so that an operator can observe the anastomosis condition, and the stability of a haemorrhoid tissue cutting and suturing operation is guaranteed. In addition, the driving motor is provided with a pressure maintaining chip, the pressure maintaining function can be achieved, and it is guaranteed that the tissue is completely cut off through the pressure maintaining action. Due to the unique double-insurance design, namely mechanical insurance and electronic triggering insurance, the situation of false triggering is effectively avoided, and use is safer.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a surgical suturing device. Background Technology

[0002] Clinical hemorrhoid stapler surgery is a surgical procedure that involves cutting and anastomosing hemorrhoidal tissue. The hemorrhoid stapler is the most common surgical instrument used in this procedure. The working principle of the hemorrhoid stapler is similar to that of a staple. By adjusting the distance between the anvil and the staple cartridge assembly, the tissue is compressed appropriately. When the distance between the staple cartridge assembly and the anvil reaches a safe range for effective suturing, the stapler is fired. Upon firing, the circular blade cuts the hemorrhoidal tissue, while the staples within the staple cartridge assembly are compressed into a predetermined shape, completing the cutting and anastomosis of the hemorrhoidal tissue. Traditional mechanical hemorrhoid staplers rely on the surgeon's personal experience to determine the success of the surgery, making it difficult to guarantee surgical stability.

[0003] After cutting and firing, the anastomosis site is inside the rectum, obstructing the view and making it difficult to observe the cutting and anastomosis status. In addition, conventional nevus tissue staplers generally do not have cameras, and the doctor's judgment on whether the anastomosis is in place depends entirely on personal habits and past experience. Postoperative bleeding is the biggest clinical complication of this surgery. Increasing the visual function can effectively judge the postoperative condition and avoid the risk of complications. Summary of the Invention

[0004] The purpose of this invention is to provide a surgical suturing device that, by adding a camera, ensures that the surgeon can observe the anastomosis, thereby guaranteeing the stability of hemorrhoid tissue cutting and suturing surgery.

[0005] This utility model is achieved through the following technical solution: a surgical suturing device, comprising:

[0006] Firing handle;

[0007] Stabbing hopper component;

[0008] Connecting member for connecting the bolt cartridge assembly and the firing handle;

[0009] Anchoring mechanism;

[0010] Connector for connecting the pin holder mechanism and the firing handle;

[0011] The anvil mechanism is equipped with a camera, and the anvil mechanism 2 is configured to rotate relative to the firing handle so that the camera can rotate relative to the firing handle.

[0012] Compared with previous technologies, the beneficial effects of this utility model are as follows:

[0013] 1. By adding a camera, the tissue anastomosis can be observed after the anastomosis is completed, making the surgical results visible. Furthermore, the camera is a wide-angle camera that can rotate, allowing for 360° observation of the entire tissue anastomosis. Any abnormalities can be addressed promptly.

[0014] 2. The drive motor is equipped with a pressure-holding chip, which can realize the pressure-holding function and ensure that the tissue is completely cut through the pressure-holding action.

[0015] 3. The dual-insurance design, consisting of a mechanical safety device and an electronic trigger safety device, effectively avoids accidental triggering and makes it safer to use.

[0016] 4. The connector is equipped with a suture groove to limit the knotting thread, which effectively solves the problem of the knotting thread slipping during surgery, thereby reducing the difficulty of the surgery. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the internal mechanism of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rotating connection between the sleeve and the firing handle of this utility model;

[0019] Figure 3a This is a view of the overall structure of the present invention;

[0020] Figure 3b for Figure 3a Enlarged cross-sectional view of a portion of the area;

[0021] Figure 4 This is an exploded view of the control mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the rear end of the connector of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of Embodiment 1 of the pressure-holding mechanism of this utility model;

[0024] Figure 7 This is a cross-sectional view of Embodiment 2 of the pressure-holding mechanism of this utility model;

[0025] Figure 8 This is an enlarged view of the rotating unit and related linkage structure in Example 2;

[0026] Figure 9 This is a partial cross-sectional view from another perspective in Embodiment 2;

[0027] Figure 10 for Figure 9 Diagram showing the changing state of the swing arm at point A as it is pushed and reset.

[0028] Figure 11 This is a schematic diagram of the structure of the insurance institution of this utility model;

[0029] Figure 12 for Figure 11 Schematic diagram of the structure after insurance is released;

[0030] Figure 13 A schematic diagram of the guide structure corresponding to the safety mechanism inside the firing handle;

[0031] Figure 14 This is a schematic diagram of a connector with a wire-locking groove.

[0032] Labeling Explanation: 1. Firing Handle, 11. Annular Protrusion, 12. Limiting Step, 2. Anchor Sealing Mechanism, 21. Attachment Magazine Assembly, 22. Cap, 23. Sealing Ring, 24. Wire Gutter, 25. Knotting Wire, 3. Attachment Magazine Assembly, 4. Sleeve, 41. Attachment Push Rod, 42. Limiting Groove, 43. Rotating Part, 44. Limiting Ring Groove, 45. Rotating Step, 5. Connector, 51. Guide Protrusion, 6. Control Mechanism, 61. Screw, 62. Limiting Pin, 63. Guide Frame, 631. Guide Hole, 632. Guide Notch, 64. Adjusting Nut, 65. U-Shaped Slider, 71. Camera, 72. Viewing Window, 73. Transmission Line, 81. Drive Motor, 821. Straight Push Rod, 822. Push Plate, 823. Transmission... 8231 Protrusion, 85 Internal Battery, 86 Rotating Wheel, 861 Switch Protrusion, 862 Reverse Toggle Protrusion, 863 Forward Toggle Protrusion, 871 Trigger Plate, 872 Pressure Holding Plate, 881 Stop Plate, 882 Trigger Switch, 91 Trigger, 911 Handle Stop, 915 Actuating Blade, 916 Motor Activation Module, 92 Safety Button Assembly, 921 Safety Button, 922 Safety Pin, 923 Safety Connecting Rod, 924 Limit Stop, 93 Electronic Switch, 94 First Notch, 95 Second Notch, 961 First Guide Groove, 962 Second Guide Groove, 963 First Positioning Post, 964 Second Positioning Post. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings:

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] like Figure 1 As shown: A surgical suturing device comprising:

[0036] Firing handle 1;

[0037] Stabbing Container 3;

[0038] A connecting component for connecting the staple cartridge assembly 3 and the firing handle 1;

[0039] Anchor seat mechanism 2;

[0040] Connector 5 is used to connect the pin seat mechanism 2 and the firing handle 1;

[0041] The pin holder mechanism 2 is equipped with a camera 71. The pin holder mechanism 2 is configured to rotate relative to the firing handle so that the camera 71 can rotate relative to the firing handle.

[0042] Furthermore, the connector 5 and the connecting member are rotatably connected to the firing handle 1, and the connector 5, the connecting member, the staple cartridge assembly 3 and the staple seat mechanism 2 are configured to rotate synchronously relative to the firing handle.

[0043] The connecting member 5 is a rod, the front end of which is fixedly connected to the pin holder mechanism 2, and the rear end of which is coupled to the firing handle; the connecting member is rotatably connected to the firing handle, and the connecting member is configured to drive the rod, the pin cartridge assembly 3 and the pin holder mechanism 2 to rotate synchronously relative to the firing handle when rotated.

[0044] The connecting component described here is a sleeve 4, which is sleeved on the outside of the rod. The front end of the sleeve 4 is connected to the spike cartridge assembly 3, and the rear end of the sleeve 4 is coupled to the firing handle.

[0045] The rod and the sleeve and / or the staple cartridge assembly 3 are designed with a limiting mechanism so that rotating the sleeve drives the rod to rotate synchronously, thereby driving the anvil and the staple cartridge to rotate.

[0046] like Figure 3a , 3b As shown in Figure 5: The limiting design is provided with a guide protrusion 51 extending in the front and rear directions on the outer side wall of the rod and a groove on the inner side wall of the staple cartridge assembly 3. The guide protrusion 51 is engaged with the groove on the inner side wall of the staple cartridge assembly 3 to restrict the sleeve 4 and the staple cartridge assembly 3 from rotating relative to the connector 5.

[0047] It also includes a control mechanism 6 on the firing handle 1; the control mechanism 6 is rotatably connected to the rear end of the connector 5, and the control mechanism 6 pushes the connector 5 to move back and forth, thereby driving the anti-pin mechanism 2 to move back and forth.

[0048] from Figure 1 As can be seen from sections 1, 3, and 4, this utility model mainly includes a firing handle 1, a nail holder mechanism 2, a nail cartridge assembly 3, a sleeve 4, a connector 5, and a control mechanism 6.

[0049] The sleeve 4 is connected to the rear end of the staple cartridge assembly 3. The staple cartridge assembly 3 is connected to the firing handle 1 through the sleeve 4, and the pusher block inside the staple cartridge assembly 3 is linked to the firing handle 1. The anti-stacking mechanism 2 is located in front of the staple cartridge assembly 3. The connector 5 is connected to the rear end of the anti-stacking mechanism 2 and passes through the sleeve 4 and extends into the firing handle 1. The control mechanism 6 is installed on the firing handle 1 and is connected to the rear end of the connector 5 to drive the connector 5 to move back and forth.

[0050] The connection method of the matching structure and the firing handle 1, as well as the control mechanism 6, are all existing technologies. The control mechanism 6 controls the back-and-forth movement of the anvil, thereby enabling the control mechanism 6 and the staple cartridge assembly 3 to clamp the tissue. By pressing the firing handle, the block is pushed forward, thus firing the matching staple. Since the above principles are all publicly available, this utility model will not elaborate further.

[0051] The anvil mechanism 2 is equipped with a camera 71. After anastomosis, the tissue anastomosis can be observed through the camera 71 installed on the anvil assembly, making the surgical results visible.

[0052] Furthermore, to address the limited field of view of existing cameras and to provide a comprehensive view of the entire anastomosis, an additional rotational design is implemented. Specifically, the anvil mechanism 2 is configured to rotate relative to the firing handle, thereby allowing the camera 71 to rotate relative to the firing handle. This enables 360° rotation of the camera, allowing observation of the anastomosis site and timely intervention in case of any abnormalities. A wide-angle camera can be used here. The rotational design is positioned between the staple cartridge and the firing handle, allowing the anvil inside the body to rotate during external surgical operations, thus driving the camera's rotation. This design is simple and easy to implement.

[0053] The side wall of the anvil mechanism 2 is provided with a viewing window 72 corresponding to the position of the camera 71. The connector 5 is a hollow rod. The camera 71 is connected to a transmission line 73. The transmission line extends into the firing handle 1 through the hollow rod and is connected to a wireless transmission device or a wired transmission device provided in the firing handle 1.

[0054] The aforementioned wireless transmission mechanism is a wireless transmission device such as Bluetooth. This allows images captured by the camera to be transmitted to a screen for the operator to observe.

[0055] The specific structure of the anvil base mechanism 2 used with the camera is as follows: The anvil base mechanism 2 includes an anvil base 21 and a cap 22. The cap 22 is installed at the front end of the anvil base 21 and a sealing ring 23 is provided at the connection between the two.

[0056] The cap 22 has a cavity inside, and the camera 71 is installed inside the cavity. The viewing window 72 is installed on the side wall of the cap 22. The sealing ring 23 serves to seal, preventing liquid from entering the camera and preventing the camera from short-circuiting.

[0057] like Figure 3a , 3b As shown: There is also a push rod 41 between the sleeve 4 and the connector 5. The rear end of the push rod 41 is linked to the firing handle 1, so that operating the firing handle can drive the push rod 41 to move back and forth, thereby enabling the matching nails in the nail cartridge assembly 3 to match.

[0058] The guide flange 51 of the rod is also located between the push rod 41 and the connector 5. The inner wall of the push rod 41 has a groove that is locked between the guide flange 51 to restrict the push rod 41 from rotating relative to the connector 5.

[0059] The sleeve 4 rotates relative to the firing handle. Since the sleeve 4 and the connector 5 are limited by the limiting groove 42 and the guide flange 51, the connector will also rotate when the sleeve rotates, thereby driving the anvil and the camera to rotate. Due to the presence of the push rod 41, the push rod 41 and the connector 5 are also in a limiting fit, ensuring that the push rod 41 can also rotate synchronously with the connector 5 when it moves back and forth.

[0060] It should be noted that the rear end of the push rod 41 is linked to the firing handle 1, and the connection between the rear end of the push rod 41 and the firing handle 1 is also a rotating connection.

[0061] like Figure 2 As shown: The specific structures of the sleeve 4 and the firing handle 1 are as follows: The rear end of the sleeve 4 is a rotating part 43, and a limiting annular groove 44 is provided on the outer side wall of the rotating part 43. The inner side wall of the firing handle 1 is provided with an annular protrusion 11 corresponding to the limiting annular groove 44. Alternatively, the outer side wall of the rotating part 43 is provided with an annular protrusion, and the inner side wall of the firing handle 1 is provided with an annular protrusion and a corresponding limiting annular groove.

[0062] To prevent excessive rotation of the sleeve 4 from causing breakage of the transmission line 73, the rotation range of the sleeve is limited. A rotation step 45 is provided on the side wall of the rotating part 43, and a limiting step 12 is provided on the inner wall of the firing handle 1. This ensures that when the rotating part 43 rotates in either the forward or reverse direction, the rotation step 45 contacts the limiting step 12 to limit the rotation angle of the rotating part 43. The sleeve can rotate 140-170 degrees to the left and right. Combined with the camera's field of view of 70-120°, 360° circumferential imaging can be achieved. See [link / reference]. Figure 2 .

[0063] like Figure 4As shown: The control mechanism 6 includes a screw 61, a limit pin 62, a guide frame 63, and an adjusting nut 64; the adjusting nut 64 is rotatably mounted on the rear end of the firing handle 1, and the screw 61 is disposed inside the firing handle 1 and the rear end of the screw 61 is threadedly connected to the adjusting nut 64.

[0064] The guide frame 63 is installed inside the firing handle 1, and the guide frame 63 has a guide hole 631 extending in the front and back direction. The limiting pin 62 passes through the screw 61 and extends into the guide hole 631, so that the screw 61 can only move in the front and back direction under the guidance of the limiting pin 62 and the guide hole 631 and will not rotate relative to the firing handle 1.

[0065] The control mechanism here is no different from existing technology, so its specific usage will not be explained further.

[0066] The control mechanism 6 also includes a U-shaped slider 65, which is mounted on the screw 61 via a limiting pin 62. The guide frame 63 has guide notches 632 on both sides corresponding to the side walls of the U-shaped slider 65. This structure ensures the stability of the screw 61's forward and backward movement.

[0067] like Figure 4 As shown: The front end of the screw 61 is provided with a rotating structure, and an annular protrusion is provided on the rotating structure. The end of the rod 5 is provided with an annular groove that mates with the annular protrusion. Through the above structure, a rotating connection between the screw 61 and the connecting member 5 is achieved.

[0068] This utility model also features a pressure-holding design, which controls the cutting and mating time to ensure that the cutting and mating can be carried out stably.

[0069] like Figure 6-10 As shown: the firing handle 1 also includes a linkage component, a drive motor 81, a rotation unit, a first drive motor control unit, and a second drive motor control unit;

[0070] The linkage component is installed inside the firing handle 1 and connected to the push rod 41 to drive the push rod 41 to move back and forth, thereby pushing out the push block in the nail magazine assembly 3 or retrieving the push block.

[0071] The rotating unit is mounted on the drive motor 81. Driven by the drive motor 81, the rotating unit always moves in a circular direction, thereby driving the linkage component to move. The linkage component is installed inside the firing handle 1 and is linked to the push rod 41 to drive the push rod 41 to move back and forth.

[0072] The first drive motor control unit is installed inside the firing handle 1 and is connected to the drive motor 81. When the pusher rod 41 pushes the pusher block in the nail cartridge assembly 3 forward to the target position (the position ready for cutting and mating), it controls the drive motor 81 to stop rotating.

[0073] The second drive motor control unit is installed inside the firing handle 1 and is connected to the drive motor 81. After the cutting and mating are completed, when the push rod 41 moves backward to retract the push block of the nail cartridge assembly 3 to the initial position, the drive motor 81 is controlled to stop rotating.

[0074] The rotation unit, linkage component, first drive motor control unit, and second drive motor control unit are positioned such that they always rotate clockwise. When the rotation unit rotates, it drives the linkage component, which in turn drives the pusher rod 41 forward. When the linkage component rotates from its initial position to the first position, the first drive motor control unit is activated by the rotation unit, thereby controlling the drive motor 81 to stop rotating. The pusher rod 41 pushes the pusher block in the nail cartridge assembly 3 forward to the target position, performing cutting and mating.

[0075] After the cutting and fitting are completed, the rotating unit continues to rotate, driving the linkage component to move, so that the linkage component moves to the initial position, thereby driving the pusher rod to move backward to the initial position, and triggering the second drive motor control unit to stop the drive motor 81 from rotating.

[0076] Based on differences in structure and operation, the pressure-holding design yields the following two implementation examples:

[0077] Example 1

[0078] like Figure 7-10 As shown: Specifically, the linkage component includes a transmission rod 823 and a push plate 822. The front end of the push plate 822 is connected to the tail end of the push rod 41, and the rear end of the push plate 822 is hinged to the linkage component of the transmission rod 823.

[0079] The transmission rod 823 has a limiting hole in the middle, and the limiting hole is fitted into the limiting shaft inside the firing handle; a torsion spring is set between the transmission rod 823 and the limiting shaft as a reset structure.

[0080] The rotating unit is mounted on the drive motor 81, and the rotating unit is a rotating wheel 86 with three protrusions.

[0081] like Figure 9-10 As shown: The rotating unit specifically comprises a rotating wheel 86 including a switch protrusion 861, a forward-moving protrusion 863, and a reverse-moving protrusion 862. The switch protrusion 861 is used to trigger the first drive motor control unit and the second drive motor control unit; the forward-moving protrusion 863 is used to actuate the linkage assembly and drive the pusher rod 41 forward; and the reverse-moving protrusion 862 is used to actuate the linkage assembly and drive the pusher rod 41 backward.

[0082] By setting three different bumps, the rotating wheel 86 can activate different functional modules at different stages as required during rotation.

[0083] The switch protrusion 861 is located on the outer peripheral surface of the rotating 86 and protrudes outward. The trigger electrode 871 is installed on the trajectory of the switch protrusion 861. The stop plate 881 is also installed on the trajectory of the switch protrusion 861.

[0084] The first drive motor control unit includes a trigger electrode 871 and a pressure holding electrode 872. Both the trigger electrode 871 and the pressure holding electrode 872 are fixedly installed inside the firing handle, and are electrically connected to the drive motor 81. When the rotating wheel 86 rotates, causing the switch protrusion 861 to rotate as well and push the trigger electrode 871 to contact the pressure holding electrode 872, the drive motor stops rotating. At this time, the trigger electrode 871 and the pressure holding electrode 872 remain in contact.

[0085] The second drive motor control unit includes a stop plate 881 and a trigger switch 882; both the stop plate 881 and the trigger switch 882 are installed inside the firing handle, and the trigger switch 882 is electrically connected to the drive motor 81; when the rotating wheel 86 continues to rotate, the switch protrusion 861 rotates and finally moves the stop plate 881, causing the stop plate 881 to close the trigger switch 882, thereby preventing the drive motor from starting.

[0086] The switch protrusion 861, the forward toggle protrusion 863, and the reverse toggle protrusion 862 are offset along the axial direction of the rotating wheel 86. Since the forward toggle protrusion 863 needs to drive the transmission rod 823 in continuous motion, it occupies a large area. To facilitate the positional distribution of the three protrusions, they are offset along the axial direction of the rotating wheel 86. That is, the transmission rod 823 is equivalent to a seesaw, including an active end and a passive end. The initial position of the active end of the transmission rod 823 is located on the trajectory traversed by the forward toggle protrusion 863; the final position of the active end of the transmission rod 823 is located on the trajectory traversed by the reverse toggle protrusion 862.

[0087] When the forward-moving protrusion 863 pushes the active end of the transmission rod 823, the passive end of the transmission rod 823 drives the pusher 822 forward, thereby pushing the nail pusher 41 forward and ejecting the nail pusher block in the nail cartridge assembly 3 for sewing and cutting. Conversely, when the reverse-moving protrusion 862 pushes the active end of the transmission rod 823, the passive end of the transmission rod 823 drives the pusher 822 backward, retracting the nail pusher block in the nail cartridge assembly 3.

[0088] The forward actuating protrusion 863 is a semi-circular protrusion with an increasing radius. The distance from its outer surface to the axis of the rotating wheel 86 increases clockwise with respect to the rotating wheel 86. Due to the gradual change in radius, during the process from the initial contact between the forward actuating protrusion 863 and the active end of the transmission rod 823 to the end of the contact, the transmission rod 823 will gradually rotate in one direction, realizing the forward movement of the push rod 41.

[0089] The reverse actuating protrusion 862 is an arc-shaped protrusion, the distance of its inner side from the axis of the rotating wheel 86 decreases in the clockwise direction of the rotating wheel 86; and a protrusion 8231 that contacts the reverse actuating protrusion 862 is provided on the active end of the transmission rod 823.

[0090] During the rotation of the rotating wheel 86, when the transmission rod 823 ends contact with the forward actuating protrusion 863, that is, when the forward actuating protrusion 863 pushes the transmission rod 823 away, the transmission rod 823 stops moving forward. When the switch protrusion 861 on the rotating wheel 86 pushes the trigger electrode 871 to contact the pressure holding electrode 872, it enters the pressure holding state, and the drive motor stops rotating to perform cutting and mating. After the cutting and mating are completed, in order to ensure that the transmission rod 823 drives the pusher rod 41 and the pusher block in the nail cartridge assembly 3 to reset, the reverse actuating protrusion 862 has a gradual curvature. The gradual curvature of the reverse actuating protrusion 862 is located on the inner side, and the active end of the transmission rod 823 is provided with a protrusion 8231 that contacts the reverse actuating protrusion 862. After the pressure holding procedure is released, the rotating wheel 86 continues to rotate, the switch protrusion 861 leaves the trigger electrode 871, and the trigger electrode 871 and the pressure holding electrode 872 also leave, and the reverse push protrusion 862 contacts the protrusion 8231, guiding the transmission rod 823 to reset, realizing the retraction of the push rod 41.

[0091] It should be noted that the drive motor here can be powered by an external power source or by an internal battery. The internal battery is usually located inside the firing handle.

[0092] The specific usage method (steps) of Example 1 is as follows:

[0093] S1. In use, the control mechanism 6 is adjusted to control the anvil mechanism 2 to move backward and clamp the tissue together with the staple cartridge assembly.

[0094] S2. Pressing the trigger 9 triggers the drive motor 81 to rotate. The drive motor 81 drives the rotating wheel 86 to rotate. The forward actuation protrusion 863 of the rotating wheel 86 pushes the transmission rod 823. The transmission rod 823 transmits power to the push plate 822, the straight push rod 3, and the push nail rod 41 one by one. The push nail rod 41 drives the push nail plate to push out, realizing the cutting and suturing of the tissue.

[0095] S3. As the pusher plate is pushed out to achieve cutting and suturing, the switch protrusion 861 of the rotating wheel 86 pushes and forces the trigger electrode 871 to deform, so that it contacts the pressure holding electrode 872 to achieve conduction, so that the drive motor 81 stops rotating and enters the pressure holding state. The pressure holding state is determined by the doctor for the pressure holding time, thereby determining the cutting and suturing time.

[0096] S4. After the cutting and stitching are completed, press the trigger 9 again to drive the motor 81 to continue rotating. The reverse actuating protrusion 862 on the rotating wheel 86 hooks the transmission rod 823 back, and the pusher rod 41 drives the pusher plate to return to its initial state.

[0097] S5. When the pusher plate is retracted to the initial state, the rotating wheel 86 begins to squeeze the stop plate 881, causing it to press the trigger switch 882 to cut off the power supply, and it remains in the power-off state. Pressing the trigger 9 again will not enable the drive motor 81 to rotate.

[0098] Example 2

[0099] In this embodiment, the specific structure of the rotating unit and the linkage component is basically similar to that of Embodiment 1.

[0100] That is, the rotating unit is a rotating wheel 86 with three protrusions; the linkage assembly includes a transmission rod 823 and a push plate 822, the front end of the push plate 822 is connected to the tail of the push rod 3, and the rear end of the push plate 822 is hinged to the passive end of the transmission rod 823.

[0101] The transmission rod 823 has a limiting hole in the middle, and the limiting hole is fitted into the limiting shaft inside the firing handle; the reset structure is a torsion spring set between the transmission rod 823 and the limiting shaft.

[0102] The initial position of the transmission rod 823 is located on the trajectory traversed by the forward actuating protrusion 863.

[0103] The first drive motor control unit includes a trigger electrode 871 and a voltage-holding electrode 872. The second drive motor control unit includes a stop plate 881 and a trigger switch 882.

[0104] Similarly, if no torsion spring is used here, or if a spring is considered to be fitted around the push rod, with the two ends of the spring connected to the firing handle and the push rod respectively, the spring will apply a backward force to the push rod.

[0105] The difference from Embodiment 1 is that the first drive motor control unit is also provided with a motherboard chip, which is connected to the pressure holding electrode 872. It mainly controls the time of the pressure holding state. When the time of the pressure holding state exceeds the threshold, it can control the drive motor 81 to reverse.

[0106] The operation steps of Example 2 are as follows:

[0107] S1 and S2 are consistent with the steps in the embodiment.

[0108] S3. As the pusher plate is pushed out to achieve cutting and sewing, the rotating wheel 86 pushes and forces the trigger electrode 871 to deform, so that it contacts the pressure holding electrode 872 to achieve conduction, causing the drive motor 81 to stop rotating and enter the pressure holding state. The pressure holding state time is automatically entered by the motherboard chip to determine the pressure holding time, thereby determining the cutting and sewing time.

[0109] S4. Once the timing is complete, the drive motor 81 will be automatically controlled to run. When the reverse-moving protrusion 862 on the rotating wheel 86 hooks the transmission rod 823 back, the pusher rod 41 will drive the pusher plate to retract to the initial state.

[0110] S5. When the pusher plate is retracted to the initial state, the rotating wheel 86 begins to squeeze the stop plate 881, causing it to press the trigger switch 882 to cut off the power supply, and it remains in the power-off state. Pressing the trigger 9 again will not enable the drive motor 81 to rotate.

[0111] The difference between Embodiment 1 and Embodiment 2 is that after entering the pressure holding state in Embodiment 1, the trigger 9 needs to be pressed again to start the drive motor and continue to rotate. The reverse actuating protrusion 862 on the rotating wheel 86 hooks the transmission rod 823 back, and the pusher rod 41 drives the pusher plate to retract, restoring the initial state and completing the fit. Embodiment 2 automatically controls the pressure holding time by the built-in motherboard chip and does not require pressing the trigger 9 again to start the drive motor.

[0112] This method uses a drive motor to drive the anastomosis, ensuring a continuous and stable anastomosis process with uniform firing force and high stability. At the same time, it greatly reduces the risk of anastomosis tearing and bleeding during surgery due to the surgeon's slippage or upward swing of the instrument caused by the use of a mechanical anorectal stapler.

[0113] It should be noted that the drive motor here can be powered by an external power source or by an internal battery. The internal battery is usually located inside the firing handle.

[0114] like Figure 11-13 As shown: The firing handle 1 is also equipped with a trigger 91. In embodiments 1 and 2 above, the drive motor is activated by pressing the trigger 91. The trigger 91 is equipped with an integrated actuating blade 915, and a motor activation module 916 is located in front of the trigger 91; the motor activation module is a PCB board, which is electrically connected to the main board PCBA inside the firing handle 1, and the trigger switch 882 is also electrically connected to the main board PCBA; pulling the trigger 91 causes the actuating blade 915 to contact and activate the motor activation module; the motor activation module is activated to drive the motor 81 to rotate, thereby firing the cutting and mating.

[0115] A safety assembly is provided behind the trigger 91. The safety assembly is a safety button assembly 92. An electronic switch 93 is fixed inside the firing handle. The motor activation module 916 is electrically connected to the electronic switch 93. The electronic switch 93 and the safety button assembly 92 work together to prevent the trigger 91 from being accidentally fired to cut or match when the anvil is not in place.

[0116] The safety button assembly 92 here includes a safety button 921, a safety pin 922, a safety connecting rod 923, and a limit stop 924; the firing handle 1 is provided with a first guide groove 961, a second guide groove 962, a first positioning post 963, and a second positioning post 964.

[0117] The safety button 921 is rotatably mounted on the first positioning post 963 and forms a seesaw-like structure. The safety connecting rod 923 and the safety button 921 are hinged by the safety pin 922. The safety connecting rod 923 is slidably mounted on the first guide groove 961. The limiting wall 924 is installed at the end of the safety connecting rod 923.

[0118] The trigger 91 is rotatably mounted on the second positioning post 964. The trigger 91 is connected to a handle retainer 911, and the handle retainer 911 is slidably mounted on the second guide groove 962.

[0119] The guide frame 63 has a first notch 94 and a second notch 95.

[0120] The electronic switch 93 is equipped with a button, which is configured to be activated by being pressed by the guide frame 63 to send a signal to the motor actuation module 916, thereby allowing the drive motor to rotate.

[0121] When the adjusting nut 64 is tightened, the guide frame 63 moves forward, the pin seat mechanism 2 moves away from the pin cartridge assembly 3, and the button falls into the second notch 95 of the guide frame 63 to release the button of the electronic switch 93, thereby disconnecting the electronic switch 93 to prevent the transmission of signals to the motor actuation module 916 and to prevent the motor actuation module 916 from transmitting signals to the drive motor to rotate, thus preventing false activation. At this time, the end of the limit stop 924 contacts the guide frame 63, and the limit stop 924 will restrict the movement of the safety connecting rod 923, thereby restricting the movement of the safety button 921; since the end of the safety button 921 abuts against the end of the trigger 91, the end of the handle stop 91 also contacts the guide frame 63, such as Figure 11 As shown, at this time, trigger 91 is not allowed to be pulled to fire the cutting and mating.

[0122] When the adjusting nut 64 is loosened, the guide frame 63 moves backward, and the pin-holding mechanism 2 approaches the pin cartridge assembly 3. When the guide frame 63 moves to the point where the first notch 94 aligns with the limiting wall 924, the pin-holding mechanism 2 abuts against the pin cartridge assembly 3, and the limiting wall 924 falls into the first notch 94 of the guide frame 63. The safety button 921, safety pin 922, safety connecting rod 923, and limiting wall 924 can then move. The handle retainer 911 falls into the second notch 95 of the guide frame 63, thereby releasing the trigger 91 and placing it in a movable state. The button on the electronic switch 93 is pressed by the guide frame 63, thus closing the electronic switch 93 and causing the safety button 921 to send a signal to the motor actuation module 916. Figure 12 As shown.

[0123] When trigger 91 is pulled to contact motor actuation module 916, and the electronic switch sends a signal to motor actuation module 916, the motor is activated to rotate, thereby achieving cutting and mating. The electronic switch has an electronic trigger safety function, and the safety button has a mechanical safety function; both provide double protection against accidental triggering, making it more secure to use.

[0124] like Figure 14 As shown: The surface of the connector 5 is provided with a wire-holding groove 24 for limiting the knotted wire. The opening of the wire-holding groove is V-shaped or arc-shaped. The connector 5 is provided with several wire-holding grooves for limiting the knotted wire 25. This design can hold the knotted wire in place, effectively solving the problem of the knotted wire slipping during surgery, thereby reducing the difficulty of the surgery.

[0125] The operation procedure of this stapler is as follows:

[0126] 1. Insert the anal speculum into the anus. The anal speculum has different numbers of viewing windows. Slight rotation can cause the mole tissue to fall into the viewing window holes.

[0127] 2. Rotating the adjusting nut 64 counterclockwise or clockwise allows the connecting piece 5, i.e. the rod, to reciprocate forward and backward in a straight line, thereby pushing out and retracting the staple cartridge mechanism 2. In use, first adjusting the nut 64 counterclockwise pushes out the staple cartridge mechanism 2, and then the front end of the stapler is pushed into the anal dilator. The staple cartridge mechanism 2 is located in front of the mole tissue in the fluoroscopic window. At this time, the staple cartridge mechanism 2 is in a state away from the staple cartridge assembly 3, and the safety button assembly 92 is limited by the guide frame 63 to prevent accidental activation. The button on the electronic switch 93 is also blocked by the guide frame 63 and is not aligned with the second notch 95.

[0128] 3. Rotate the adjusting nut 64 clockwise to retract the staple cartridge mechanism 2, compress the tissue to achieve a safe range of effective fit, and the guide frame 63 moves with the screw 61 until the first notch 94 is aligned with the limit wall 924. At this time, the second notch 95 is aligned with the button on the electronic switch 93, and the trigger 91 is released from the restricted state. At this time, the electronic safety of the trigger 91 is released, and the trigger 91 can be rotated to trigger the drive motor 81 to rotate.

[0129] 4. After plugging in the power and successfully connecting to a computer or other monitor (with real-time screen transmission), open the safety button component 93.

[0130] 5. Pulling the trigger 91 triggers the drive motor 81 to rotate, which in turn drives the rotating wheel 86 to rotate. The rotating wheel 86 pushes the transmission rod 823, which in turn transmits power to the push plate 822, the straight push rod 821, and the push plate inside the staple cartridge assembly 3 one by one. The push plate is pushed out, thereby pushing out the annular blade built into the push plate, thus realizing the cutting and suturing of the tissue. At the same time, the main board chip is equipped with a pressure holding function. When the drive motor 81 drives the rotating wheel 86 to rotate, the rotating wheel 86 triggers the electrode 871 and presses it against the pressure holding electrode 872, starting the pressure holding program. The drive motor stops rotating, and the annular blade stops moving to ensure that the tissue cutting is complete and the suturing is finished.

[0131] 6. After the set time is reached, the pressure holding program ends. The mainboard program automatically starts the drive motor 81 to rotate or the doctor presses the trigger 9. The drive motor 81 rotates, and the rotating wheel 86 sequentially drives the transmission rod 823. The transmission rod 823 then drives the push plate 822, the straight push rod 821, and the push plate in the staple cartridge assembly 3. The transmission rod 823 pushes the stop plate to press the pressure holding switch 83, and finally retracts the transmission rod 823. When the drive motor 81 stops rotating, the annular blade is in the retracted state.

[0132] 7. After the anastomosis is completed, move the stapler back and forth by 0-5 cm so that the anvil mechanism 2 is placed in the viewing window of the anal dilator. At this time, the camera on the anvil mechanism 2 is just shining around the staples, so the tissue anastomosis can be observed on a computer or other monitor.

[0133] 8. Rotating the sleeve 4 can drive the camera on the anvil mechanism 2 to rotate, thereby observing the fit of the entire tissue and other conditions.

[0134] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surgical suturing device comprising: Firing handle (1); Static container component (3); A connecting member for connecting the staple cartridge assembly (3) and the firing handle (1); Anchor seat mechanism (2); Connector (5) for connecting the pin seat mechanism (2) and the firing handle (1); The feature is that: the anvil mechanism (2) is provided with a camera (71), and the anvil mechanism (2) is configured to rotate relative to the firing handle so that the camera (71) can rotate relative to the firing handle.

2. The surgical suturing device according to claim 1, characterized in that: The connector (5) and the connecting member are rotatably connected to the firing handle. The connector (5), the connecting member, the staple cartridge assembly (3) and the staple seat mechanism (2) are configured to rotate synchronously relative to the firing handle.

3. The surgical suturing device according to claim 2, characterized in that: The connecting member (5) is a rod, the front end of which is fixedly connected to the pin seat mechanism (2), and the rear end of which is coupled to the firing handle; the connecting member is rotatably connected to the firing handle, and the connecting member is configured to drive the rod, the pin cartridge assembly (3) and the pin seat mechanism (2) to rotate synchronously relative to the firing handle when rotating.

4. The surgical suturing device according to claim 3, characterized in that: The connecting member is a sleeve (4), which is sleeved on the outside of the rod. The front end of the sleeve (4) is connected to the staple cartridge assembly (3), and the rear end of the sleeve (4) is coupled to the firing handle. The rod and the sleeve and / or the staple cartridge assembly (3) have a limiting design, which allows the rotating sleeve to drive the rod to rotate synchronously, thereby driving the anvil and the staple cartridge to rotate.

5. The surgical suturing device according to claim 4, characterized in that: The limiting design is provided with a guide protrusion (51) extending in the front and rear directions on the outer side wall of the rod and a groove on the inner side wall of the staple cartridge assembly (3). The guide protrusion (51) and the groove on the inner side wall of the staple cartridge assembly (3) are engaged to restrict the rotation of the limiting sleeve (4) and the staple cartridge assembly (3) relative to the connector (5).

6. The surgical suturing device according to claim 5, characterized in that: There is also a push rod (41) between the sleeve (4) and the connector (5). The rear end of the push rod (41) is linked to the firing handle (1), so that operating the firing handle can drive the push rod (41) to move back and forth, thereby enabling the staples in the staple cartridge assembly (3) to match. The guide flange (51) of the rod is also located between the push rod (41) and the connector (5). The inner wall of the push rod (41) has a groove that is locked between the guide flange (51) to restrict the push rod (41) from rotating relative to the connector (5).

7. The surgical suturing device according to claim 1, characterized in that: It also includes a control mechanism (6) on the firing handle (1); the control mechanism (6) is rotatably connected to the rear end of the connector (5), and the control mechanism (6) pushes the connector (5) to move back and forth, thereby driving the anti-pin mechanism (2) to move back and forth.

8. The surgical suturing device according to claim 1, characterized in that: The side wall of the anvil mechanism (2) is provided with a viewing window (72) corresponding to the position of the camera (71). The connector (5) is a hollow rod. The camera (71) is connected to a transmission line (73). The transmission line extends into the firing handle (1) through the hollow rod and is connected to a wireless transmission device or a wired transmission device provided in the firing handle (1).

9. The surgical suturing device according to claim 4, characterized in that: The rear end of the sleeve (4) is a rotating part (43), and a limiting ring groove (44) is provided on the outer side wall of the rotating part (43). The inner side wall of the firing handle (1) is provided with an annular protrusion (11) corresponding to the limiting ring groove (44); or the outer side wall of the rotating part (43) is provided with an annular protrusion, and the inner side wall of the firing handle (1) is provided with an annular protrusion and a corresponding limiting ring groove.

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