An electric laparoscopic linear cutting stapler

Abstract

The present invention belongs to the technical field of medical devices and relates to an electric laparoscopic linear cutting stapler, which includes a cutting stapler main body, a support sleeve rotatably arranged on the cutting stapler main body, and a support tube connected to the support sleeve. The end of the support tube is provided with a staple cartridge jaw for installing a staple cartridge through a movable hinge part. A anvil jaw is rotatably arranged on the staple cartridge jaw through a hinge block to drive a cutting and anastomosing member sliding on the staple cartridge jaw to cut tissues and trigger the staples in the staple cartridge to anastomose tissues; The movable hinge part includes a first connecting sleeve connected to the first end of the support tube, and a central disc is rotatably arranged on both sides of the first connecting sleeve through a support plate. It ensures the maximum rotation angle of the staple cartridge jaw and the convenience of opening and closing the staple cartridge jaw after adjusting the angle, and cleverly realizes the self-locking function by the dislocation of the transmission structure, eliminating the complex safety switch structure in the prior art. The staple cartridge jaw cannot be rotated when the anvil jaw is closed, and the staple cartridge jaw can be rotated when the anvil jaw is opened.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and more particularly, relates to an electric laparoscopic linear cutting stapler. Background Art

[0002] An electric laparoscopic linear cutting stapler is a medical device used in minimally invasive surgery, mainly for tissue cutting and suturing in laparoscopic surgery. This device combines the functions of cutting and suturing, and can complete these two tasks in one operation, greatly improving the surgical efficiency and reducing the operation time. It is widely used in multiple fields such as gastrointestinal surgery, thoracic surgery, and general surgery.

[0003] When using a traditional manual laparoscopic linear cutting stapler for cutting and anastomosis operations, doctors need to have a high level of skill. The process is relatively complex and prone to human error. The surgical operation of the cutting stapler is regulated by an additional complex safety switch structure, that is, the angle of the jaws can only be adjusted before the jaws are closed, and the angle of the jaws cannot be adjusted after the jaws are closed, making the operation cumbersome.

[0004] Another example is the patent with the patent publication number CN103315788B in the prior art, which discloses a cutting stapler suitable for minimally invasive surgery. The cutting stapler for minimally invasive surgery adjusts the angle of the jaws by the alternating movement of two joint connecting plates. However, since the two joint connecting plates are on the same horizontal plane, they will interfere with each other when adjusting to a certain angle and then adjusting again, which has limitations.

[0005] Based on the above-mentioned disadvantages in the prior art, an electric laparoscopic linear cutting stapler is specially designed to overcome the disadvantages of the prior art, with a simple structure, which cleverly uses a transmission structure to achieve a self-locking angle when closed, and has less limitation in angle adjustment. Summary of the Invention

[0006] The object of the present invention is to overcome the above-mentioned disadvantages of the prior art, and provide an electric laparoscopic linear cutting stapler with a simple structure, which cleverly uses a transmission structure to achieve a self-locking angle when closed, and has less limitation in angle adjustment.

[0007] To solve the above technical problems, the present invention provides an electric laparoscopic linear cutting stapler, which includes a cutting stapler main body with a built-in control system, a support sleeve rotatably arranged on the cutting stapler main body, and a support tube connected to the support sleeve. The left end of the support tube is provided with a staple cartridge jaw for installing a staple cartridge through a movable hinge portion. A anvil jaw for assisting in closing the staples is rotatably arranged above the staple cartridge jaw through a hinge block. The hinge block is rotatably arranged inside the staple cartridge jaw, and the anvil jaw is connected to the upper side of the hinge block. A cutting and stapling member sliding on the staple cartridge jaw slides to cut tissue and trigger the staples in the staple cartridge to anastomose the cut tissue; The movable hinge portion includes a first connecting sleeve connected to the first end of the support tube. Central disks are rotatably arranged on the upper and lower sides of the first connecting sleeve through support plates. The support plates are connected to the connecting sleeve, and the central disks are rotatably arranged on the support plates. The central positions of the two central disks overlap in the vertical direction. A second connecting sleeve connected to the staple cartridge jaw is connected between the two central disks. A joint rubber ring for protection is connected between the second connecting sleeve and the first connecting sleeve. Two upper and lower opposite turntables are rotatably arranged at the second end of the support tube. A first connecting rod movably passing through the support tube is rotatably arranged between the eccentric portions of the upper and lower turntables and the eccentric portions of the upper and lower central disks one by one. The turntables are driven to rotate by a rotation drive group arranged in the support sleeve; The electric laparoscopic linear cutting stapler further includes a second connecting rod connected to the hinge block. The second connecting rod is located on the side of the hinge block away from the anvil jaw. A hinge plate located inside the second connecting sleeve is rotatably arranged on the second connecting rod. A push-pull plate slides between the support tube and the first connecting sleeve. A transmission plate is rotatably arranged between the push-pull plate and the hinge plate. The center of rotation between the transmission plate and the push-pull plate overlaps the center of the central disk in the vertical direction. The push-pull plate is driven to move left and right by an opening and closing drive group arranged in the support sleeve.

[0008] Preferably, the rotation drive group includes a first motor installed inside the support sleeve. The eccentric portion of the turntable rotatably supports the first connecting rod through a connected eccentric rod. A rotating cylinder is connected between the closer sides of the eccentric rods of the two turntables. A worm gear is connected to the rotating cylinder. A worm meshing with the right side of the worm gear is connected to the output shaft of the first motor.

[0009] Preferably, the opening and closing drive group includes a second motor installed inside the support sleeve. A first lead screw is connected to the output shaft of the second motor. A nut block slidably passing through the support tube is connected to the right end of the transmission plate. The nut block is threadedly connected to the first lead screw.

[0010] Preferably, it further includes a rotating ring connected to the right side of the support sleeve. The rotating ring rotatably passes through the cutting stapler main body. A straight tooth ring is connected to one side of the rotating ring. A drive motor is installed inside the cutting stapler main body. A straight gear meshing with the straight tooth ring is connected to the output shaft of the drive motor.

[0011] Preferably, it further includes an elastic push plate connected to one side of the cutting and anastomosis part. The elastic push plate slidably penetrates through the support tube, the first connecting sleeve, the second connecting sleeve, and the staple cartridge jaw, and is driven to move by a linear driving group provided in the cutting stapler body.

[0012] Preferably, it further includes: two front and rear opposite connecting plates I are connected to the first connecting sleeve, and two front and rear opposite connecting plates II are connected to the second connecting sleeve. The front and rear two connecting plates I are respectively located on the front and rear sides of the elastic push plate, and the front and rear two connecting plates II are respectively located on the front and rear sides of the elastic push plate. Fixed pulleys in contact and cooperation with the elastic push plate are rotatably provided on the two connecting plates I and the two connecting plates II. Two abutting blocks are connected to the two connecting plates II, and rounded corners suitable for being in contact and cooperation with the elastic push plate are provided on the abutting blocks.

[0013] Preferably, the linear driving group includes a connecting ring connected to the elastic push plate. The connecting ring slidably penetrates through the support tube. One side of the connecting ring is connected to a connecting rod slidably penetrating through the rotating ring. A support rod concentric with the rotating ring is rotatably provided between the cutting stapler body and the rotating ring. A push-pull plate slides on the support rod. An annular groove is provided on the push-pull plate. The right end of the connecting rod is slidably arranged in the annular groove. A servo motor is installed on the cutting stapler body. A second lead screw is connected to the output shaft of the servo motor, and the left end of the second lead screw is rotatably arranged on the upper left part of the support rod.

[0014] Preferably, the two switches for controlling the forward rotation and reverse rotation of the first motor are both installed on the cutting stapler body; the two switches for controlling the forward rotation and reverse rotation of the second motor are both installed on the cutting stapler body; the two switches for controlling the forward rotation and reverse rotation of the driving motor are both installed on the cutting stapler body; the switch for controlling the forward rotation and reverse rotation of the servo motor is installed on the cutting stapler body.

[0015] On the basis of overcoming the shortcomings of the prior art, the beneficial effects that the present invention can achieve are:

[0016] Ensure the maximum rotation angle of the staple cartridge jaw and the convenience of opening and closing the staple cartridge jaw after adjusting the angle, and cleverly rely on the dislocation of the transmission structure to achieve the self-locking function, eliminating the complex safety switch structure in the prior art. The staple cartridge jaw cannot be rotated when the anvil jaw is closed, and the staple cartridge jaw can be rotated when the anvil jaw is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the assembly schematic diagram of the present invention.

[0018] Figure 2 is the cross-sectional view of the cutting stapler body, the support sleeve and the joint rubber ring of the present invention.

[0019] Figure 3 is the partial cross-sectional view of the staple cartridge jaw and the anvil jaw of the present invention.

[0020] Figure 4 It is a schematic diagram of the positional relationship among the center disk, the push-pull plate and the transmission plate of the present invention.

[0021] Figure 5 It is a schematic diagram of the anvil jaws of the present invention in a closed state.

[0022] Figure 6 It is a top view of the connecting sleeve 2 of the present invention in a state of rotating and adjusting the angle.

[0023] Figure 7 It is a top view of the elastic push plate, the first connecting plate and the second connecting plate of the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the support sleeve of the present invention.

[0025] Figure 9 It is a schematic diagram of the internal structure of the cutting stapler body of the present invention.

[0026] Figure 10 It is a cross-sectional view of the rotating ring and the push-pull disk of the present invention.

[0027] The marks in the drawings provided by the present invention are: 1-cutting stapler body, 2-support sleeve, 21-swivel, 22-spur gear ring, 23-driving motor, 24-spur gear, 3-support tube, 4-movable hinge part, 41-connecting sleeve 1, 42-support plate, 43-center disk, 44-connecting sleeve 2, 45-joint rubber ring, 46-connecting rod 1, 5-nail magazine jaw, 51-cutting stapler, 52-elastic push plate, 53-connecting plate 1, 54-connecting plate 2, 55-resistance block, 6-anvil jaw, 61-hinge block, 62-connecting rod 2, 63-hinge plate, 64-push-pull plate, 65-transmission plate, 71-turntable, 72-rotating drum, 73-worm gear, 74-motor 1, 75-worm, 81-motor 2, 82-screw rod 1, 83-nut block, 91-connecting ring, 92-connecting rod, 93-support rod, 94-push-pull plate, 95-servo motor, 96-screw rod 2. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In addition, the terms "first", "second", and "third" are for descriptive purposes only and should not be construed as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] An electric laparoscopic linear cutting stapler, as Figures 1-6 shown, includes a cutting stapler body 1 with a built-in control system, a support sleeve 2 rotatably arranged on the cutting stapler body 1, and a support tube 3 connected to the support sleeve 2, so that the support sleeve 2 drives the support tube 3 to rotate axially. The left end of the support tube 3 is provided with a staple cartridge jaw 5 for installing a staple cartridge through a movable hinge portion 4. The movable hinge portion 4 drives the staple cartridge jaw 5 to rotate in the radial direction of the support tube 3 to adapt to tissue cutting and anastomosis operations at different angles. Above the staple cartridge jaw 5, an anvil jaw 6 for assisting in closing the staples is rotatably arranged through a hinge block 61. The hinge block 61 is rotatably arranged inside the staple cartridge jaw 5, and the anvil jaw 6 is connected to the upper side of the hinge block 61. The anvil jaw 6 rotates and swings down to clamp the tissue onto the staple cartridge jaw 5, and then drives the cutting and anastomosis member 51 sliding on the staple cartridge jaw 5 to cut the tissue and trigger the staples in the staple cartridge to anastomose the cut tissue.

[0031] The movable hinge portion 4 includes a first connecting sleeve 41 connected to the first end (left end) of the support tube 3. On both the upper and lower sides of the first connecting sleeve 41, a central disk 43 is rotatably arranged through a support plate 42. The support plate 42 is connected to the connecting sleeve, and the central disk 43 is rotatably arranged on the support plate 42. The central positions of the two central disks 43 overlap in the up and down directions. A second connecting sleeve 44 connected to the staple cartridge jaw 5 is connected between the two central disks 43. A joint rubber ring 45 for protection is connected between the second connecting sleeve 44 and the first connecting sleeve 41. Rotating the central disk 43 makes the second connecting sleeve 44 drive the staple cartridge jaw 5 to rotate back and forth to adjust the angle. Two upper and lower opposite turntables 71 are rotatably arranged at the second end of the support tube 3. A first connecting rod 46 that movably penetrates through the support tube 3 is rotatably arranged between the eccentric positions of the upper and lower two turntables 71 and the eccentric positions of the upper and lower two central disks 43 one by one. Rotating the turntable 71 makes the first connecting rod 46 push and pull the central disk 43 to rotate, and the two first connecting rods 46 do not interfere with each other. Therefore, both the transmission strength can be ensured and the maximum rotation angle of the staple cartridge jaw 5 can be ensured. The turntable 71 is rotated by a rotation driving group arranged in the support sleeve 2.

[0032] The electric laparoscopic linear cutting stapler further includes a second connecting rod 62 connected to the hinge block 61. The second connecting rod 62 is located on the side of the hinge block 61 away from the anvil jaw 6. A hinge plate 63 is rotatably mounted on the second connecting rod 62 and is located inside the second connecting sleeve 44. Shifting the hinge plate 63 to the right causes the second connecting rod 62 to pull the hinge block 61 to rotate. The hinge block 61 will drive the anvil jaw 6 to rotate and swing downward to clamp the tissue onto the cartridge jaw 5. Shifting the hinge plate 63 to the left will push the hinge block 61 to rotate in the opposite direction through the second connecting rod 62 to open the anvil jaw 6. A push-pull plate 64 slides between the support tube 3 and the first connecting sleeve 41. A transmission plate 65 is rotatably mounted between the push-pull plate 64 and the hinge plate 63. The center of rotation between the transmission plate 65 and the push-pull plate 64 overlaps the center of the center disk 43 in the vertical direction. Therefore, when the anvil jaw 6 is in the open state, the rotation of the center disk 43 will drive the cartridge jaw 5 to rotate through the second connecting sleeve 44. The cartridge jaw 5 will then drive the transmission plate 65 to rotate synchronously on the push-pull plate 64 centered on the center disk 43 through the hinge block 61, the second connecting rod 62, and the hinge plate 63 in sequence. Thus, while ensuring the maximum rotation angle of the cartridge jaw 5, the transmission of the push-pull plate 64 is still maintained to realize the opening and closing of the anvil jaw 6. Then, the push-pull plate 64 can be shifted to the right to cause the transmission plate 65 to pull the hinge plate 63 to close the anvil jaw 6. At this time, the center of rotation between the transmission plate 65 and the push-pull plate 64 does not overlap the center of the center disk 43 in the vertical direction. Therefore, when operating to close the anvil jaw 6 for cutting and stapling, the center disk 43 cannot drive the cartridge jaw 5 to rotate through the second connecting sleeve 44. Thus, the self-locking function is cleverly realized by the dislocation of the transmission structure, eliminating the complex safety switch structure in the prior art. Until the push-pull plate 64 is shifted to the left to reset and release the transmission plate 65, the anvil jaw 6 opens. At this time, the center of rotation between the transmission plate 65 and the push-pull plate 64 overlaps the center of the center disk 43 in the vertical direction. Furthermore, when opening the anvil jaw 6, the cartridge jaw 5 can rotate normally. The push-pull plate 64 is driven to move left and right by the opening and closing drive group provided in the support sleeve 2.

[0033] As Figure 8 shown, the rotation drive group includes a first motor 74 installed inside the support sleeve 2. The eccentric part of the turntable 71 is rotatably supported by a connecting eccentric rod for the first connecting rod 46. A rotating cylinder 72 is connected between the sides of the eccentric rods of the two turntables 71 that are close to each other. A worm gear 73 is connected to the rotating cylinder 72. A worm 75 that meshes with the right side of the worm gear 73 is connected to the output shaft of the first motor 74. Controlling the first motor 74 to drive the worm 75 to rotate to drive the worm 75 to drive the rotating cylinder 72 to rotate. The rotating cylinder 72 will then drive the turntable 71 to rotate through the eccentric rod, thereby realizing the function of adjusting the rotation angle of the cartridge jaw 5 by the center disk 43 through the second connecting sleeve 44.

[0034] As Figure 8As shown in the figure, the opening and closing drive group includes a second motor 81 installed inside the support sleeve 2. A first lead screw 82 is connected to the output shaft of the second motor 81. A nut block 83 is connected to the right end of the transmission plate 65 and slidably penetrates through the support tube 3. The nut block 83 is threadedly connected to the first lead screw 82. By controlling the second motor 81 to drive the first lead screw 82 to rotate, the nut block 83 is driven to move rightward, and the nut block 83 will drive the push-pull plate 64 to move rightward to close the anvil jaw 6. While controlling the second motor 81 to drive the first lead screw 82 to rotate in the reverse direction, the nut block 83 will drive the push-pull plate 64 to move leftward to open the anvil jaw 6.

[0035] As Figure 8 shown in the figure, it further includes a swivel ring 21 connected to the right side of the support sleeve 2. The swivel ring 21 rotatably penetrates through the stapler body 1. A straight gear ring 22 is connected to one side of the swivel ring 21. A drive motor 23 is installed inside the stapler body 1. A straight gear 24 meshing with the straight gear ring 22 is connected to the output shaft of the drive motor 23. By controlling the drive motor 23 to drive the straight gear 24 to rotate, the straight gear ring 22 is driven to drive the swivel ring 21 to rotate. The swivel ring 21 will drive the support tube 3 to rotate through the support sleeve 2, so as to adjust the position of the cartridge jaw 5 axially along the support tube 3.

[0036] As Figure 3 、 Figure 5 and Figure 7 shown in the figure, it further includes an elastic push plate 52 connected to one side of the cutting and stapling member 51. The elastic push plate 52 slidably penetrates through the support tube 3, the first connecting sleeve 41, the second connecting sleeve 44 and the cartridge jaw 5. When the elastic push plate 52 moves leftward, it will drive the cutting and stapling member 51 to move leftward to cut the tissue and trigger the nails in the cartridge to anastomose the cut tissue. When the second connecting sleeve 44 drives the cartridge jaw 5 to rotate and adjust the angle, the elastic push plate 52 will adaptively deform and maintain the transmission of the cutting and stapling member 51. The elastic push plate 52 is driven to move by a linear drive group provided inside the stapler body 1.

[0037] As Figure 7 shown in the figure, it further includes: two front and rear opposite connecting plates 53 are connected to the first connecting sleeve 41, and two front and rear opposite connecting plates 54 are connected to the second connecting sleeve 44. The two front and rear connecting plates 53 are respectively located on the front and rear sides of the elastic push plate 52, and the two front and rear connecting plates 54 are respectively located on the front and rear sides of the elastic push plate 52. Fixed pulleys in contact and cooperation with the elastic push plate 52 are rotatably mounted on the two connecting plates 53 and the two connecting plates 54. Two abutting blocks 55 are connected to the two connecting plates 54. The abutting blocks 55 are provided with rounded corners suitable for contacting and cooperating with the elastic push plate 52. When the second connecting sleeve 44 drives the cartridge jaw 5 to rotate and adjust the angle, under the guiding action of the fixed pulleys and the pressing action of the abutting blocks 55, it is ensured that the elastic push plate 52 will adaptively deform and maintain the transmission of the cutting and stapling member 51, with high stability.

[0038] AsFigures 8-10 As shown in Figures 8-10 , the linear drive group includes a connecting ring 91 connected to the elastic push plate 52. The connecting ring 91 slidably penetrates through the support tube 3. One side of the connecting ring 91 is connected to a connecting rod 92 that slidably penetrates through the rotating ring 21. When the rotating ring 21 rotates, it will drive the connecting ring 91 to rotate through the connecting rod 92, so that they do not interfere with each other. When the connecting rod 92 moves leftward, it will drive the elastic push plate 52 to move leftward through the connecting ring 91 to drive the cutting and anastomosing member 51 to move leftward for work. There is a support rod 93 concentric with the rotating ring 21 rotatably arranged between the stapler body 1 and the rotating ring 21. A push-pull disc 94 slides on the support rod 93. An annular groove is formed on the push-pull disc 94. The right end of the connecting rod 92 is slidably arranged in the annular groove. Therefore, when the rotating ring 21 rotates, it will drive the connecting rod 92 to rotate along the annular groove on the push-pull disc 94. And moving the push-pull disc 94 can drive the connecting rod 92 to move. A servo motor 95 is installed on the stapler body 1. A second lead screw 96 is connected to the output shaft of the servo motor 95. The left end of the second lead screw 96 is rotatably arranged at the upper left part of the support rod 93. By controlling the servo motor 95 to drive the second lead screw 96 to rotate, the push-pull disc 94 is driven to drive the connecting rod 92 to move, so as to realize the function of driving the cutting and anastomosing member 51 to move leftward to cut tissues and trigger the nails in the staple cartridge to anastomose the cut tissues.

[0039] Preferably in this embodiment, the two switches for controlling the forward and reverse rotations of the first motor 74 are both installed on the stapler body 1; the two switches for controlling the forward and reverse rotations of the second motor 81 are both installed on the stapler body 1; the two switches for controlling the forward and reverse rotations of the drive motor 23 are both installed on the stapler body 1, which is convenient for holding the stapler body 1 for electric control, with convenient operation and high precision; the switch for controlling the forward and reverse rotations of the servo motor 95 is installed on the stapler body 1. When pressing the switch for controlling the servo motor 95, the servo motor 95 starts for a predetermined time to drive the second lead screw 96 to rotate forward. When releasing the switch for controlling the servo motor 95, the servo motor 95 starts for a predetermined time to drive the second lead screw 96 to rotate reversely.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. They only express the preferred embodiments of the present invention, with relatively specific and detailed descriptions, but should not be construed as a limitation on the scope of the present invention patent.

[0041] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, quantity increases or decreases, improvements and substitutions can still be made. Therefore, based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

Claims

1. An electric laparoscopic linear cutting stapler, comprising a cutting stapler body, a support sleeve rotatably arranged on the cutting stapler body and a support tube connected to the support sleeve, wherein the end of the support tube is provided with a staple cartridge jaw for mounting a staple cartridge through a movable hinge portion, and a staple anvil jaw is rotatably arranged on the staple cartridge jaw through a hinge block, driving the cutting stapler sliding on the staple cartridge jaw to cut tissue and trigger the staples in the staple cartridge to staple the tissue; characterized in that It also includes: the movable hinge part includes a connecting sleeve 1 connected to the first end of the support tube, both sides of the connecting sleeve 1 are rotated with a center disk through the support plate, the center positions of the two center disks overlap in the up and down directions, a connecting sleeve 2 connected to the nail magazine jaws is connected between the two center disks, a joint rubber ring is connected between the connecting sleeve 2 and the connecting sleeve 1, and the second end of the support tube rotates with two rotating disks opposite to each other up and down, and the eccentric parts of the upper and lower rotating disks rotate one-to-one with the eccentric parts of the upper and lower center disks. Rod one, the turntable is driven to rotate by a rotating drive group arranged in the support sleeve; the electric laparoscope linear cutting stapler also includes a connecting rod two connected to the hinge block, the connecting rod two is located on the side of the hinge block away from the anvil jaws, a hinge plate is rotated on the connecting rod two, a push-pull plate is slid between the support tube and the connecting sleeve one, a transmission plate is rotated between the push-pull plate and the hinge plate, the center of rotation between the transmission plate and the push-pull plate overlaps the center of the center disk in the up and down direction, and the push-pull plate is driven to move by the opening and closing drive group arranged in the support sleeve.

2. The electric laparoscopic linear cutting stapler according to claim 1, characterized in that: The rotary drive group includes a motor 1 installed on the support sleeve, the eccentric part of the turntable is rotatably supported by the connected eccentric rod, a rotating drum is connected between the sides of the eccentric rods of the two turntables close to each other, a worm gear is connected to the rotating drum, and a worm gear meshing with the worm gear is connected to the output shaft of the motor 1.

3. The electric laparoscopic linear cutting stapler according to claim 2, characterized in that: The opening and closing drive group includes a second motor installed on the support sleeve, a screw rod is connected to the output shaft of the second motor, a nut block sliding through the support tube is connected to the end of the transmission plate, and the nut block is threadedly connected to the screw rod.

4. The electric laparoscopic linear cutting stapler according to claim 3, characterized in that: It also includes a swivel connected to the support sleeve, the swivel rotates through the cutting stapler body, one side of the swivel is connected to a spur gear ring, a drive motor is installed inside the cutting stapler body, and a spur gear meshing with the spur gear ring is connected to the output shaft of the drive motor.

5. The electric laparoscopic linear cutting stapler according to claim 4, characterized in that: It also includes an elastic push plate connected to one side of the cutting and stapling piece, the elastic push plate slides through the support tube, the connecting sleeve 1, the connecting sleeve 2 and the stapler jaws, and the elastic push plate is driven to move by a linear drive group arranged in the cutting and stapling device body.

6. The electric laparoscopic linear cutting stapler according to claim 5, characterized in that: It also includes: two connecting plates 1 are connected to the connecting sleeve 1, and two connecting plates 2 are connected to the connecting sleeve 2. The two connecting plates 1 are respectively located on both sides of the elastic push plate, and the two connecting plates 2 are respectively located on both sides of the elastic push plate. Fixed pulleys that are in contact with the elastic push plate are rotated on the two connecting plates 1 and the two connecting plates 2. A resistance block is connected to the two connecting plates 2, and the resistance block has a rounded corner suitable for contacting and cooperating with the elastic push plate.

7. The electric laparoscopic linear cutting stapler according to claim 6, characterized in that: The linear drive group includes a connecting ring connected to the elastic push plate, the connecting ring slides through the support tube, one side of the connecting ring is connected to a connecting rod that slides through the rotating ring, a support rod rotates between the cutting stapler body and the rotating ring, a push-pull disk slides on the support rod, an annular groove is opened on the push-pull disk, the end of the connecting rod is slidably arranged in the annular groove, a servo motor is installed on the cutting stapler body, and a screw rod 2 is connected to the output shaft of the servo motor.

8. The electric laparoscopic linear cutting stapler according to claim 7, characterized in that: The two switches for controlling the forward and reverse rotation of the motor one are both installed on the cutting stapler body; the two switches for controlling the forward and reverse rotation of the motor two are both installed on the cutting stapler body; the two switches for controlling the forward and reverse rotation of the drive motor are both installed on the cutting stapler body; the switch for controlling the forward and reverse rotation of the servo motor is installed on the cutting stapler body.

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