An electric stapler capable of staple lesion tissues of different thicknesses

Abstract

The present invention discloses an electric stapler that can anastomose lesion tissues of different thicknesses, and relates to the technical field of electric staplers, comprising an operating handle, a connecting rod fixedly connected to one side of the operating handle, and a mounting head fixedly connected to one end of the connecting rod, wherein the top of the mounting head is slidably connected to a staple cartridge seat. The present invention has a reasonable structure, and avoids applying the same compression height to tissues of different thicknesses, which may result in damage to the sutured tissue due to excessive compression force, or insufficient compression force due to insufficient compression force, thereby affecting suturing. It realizes switching of suture staples of different specifications for suturing according to the thickness of tissues at different positions, and realizes suturing of tissues of different thicknesses at different positions, and avoids bending of the suture staples when anastomosing thick tissues, which may result in the suture staples being insufficiently anastomosed and easily falling off from the anastomosis site after anastomosis, and insufficient anastomosis force of the suture staples when anastomosing thin tissues, resulting in poor hemostasis during anastomosis.

Description

Technical Field

[0001] The invention relates to the technical field of electric staplers, and in particular to an electric stapler capable of staple lesion tissues of different thicknesses. Background Art

[0002] With the development of medical science and technology, doctors have changed the way of suturing human tissues or organs from manual suturing with needles and threads to suturing with medical staplers and alloy staples. The use of medical staplers for suturing is easy to operate, safe, and causes little trauma, and has been accepted by the majority of surgical clinicians.

[0003] The laparoscopic stapler currently used in laparoscopic surgery compresses tissue to a certain thickness before suturing and cutting the tissue. Since human tissue itself has inconsistent thickness, there are only a few laparoscopic staplers on the market that can compress tissue, and there is a certain difference in nail height between the existing laparoscopic staplers. Generally, one nail height corresponds to one compression thickness, for example; gray nails with a nail height of 2.0 correspond to thinner arteries, brown nails with a nail height of 2.0, 2.5, and 3.0 correspond to thicker veins, purple nails with a nail height of 3.0, 3.5, and 4.0 correspond to thinner lung tissue, intestinal tissue, and gastric tissue, etc.; black nails with a nail height of 4.0, 4.5, and 5.0 correspond to thicker lung tissue, intestinal tissue, and gastric tissue, etc. The above are the common nails on the market. See types of laparoscopic staplers; that is, if purple staplers with a height of 3.0, 3.5, or 4.0 are used, it is often suitable for compressing tissues within a certain thickness range to the same height, which will cause the laparoscopic stapler to exert different compression forces on tissues at different locations. If the compression force on the tissue is too large, it will cause insufficient blood supply to the tissue, which is not conducive to tissue healing after suturing. If the compression force on the tissue is too small, it will cause excessive blood supply to the tissue, resulting in bleeding, which is also not conducive to tissue healing. In addition, when using staples of the same specification to anastomose tissues of different thicknesses, the staples will bend and not fit well when anastomosing thick tissues, and will be more likely to fall off the anastomosis site after anastomosis. When anastomosing thin tissues, the staples will not have enough adhesion, and the hemostatic effect during anastomosis will be poor, affecting the healing effect.

[0004] Therefore, the present application provides an electric stapler that can staple lesion tissues of different thicknesses to meet the needs. Summary of the invention

[0005] The purpose of the present application is to provide an electric stapler that can anastomose lesion tissues of different thicknesses, thereby avoiding applying the same compression height to tissues of different thicknesses, resulting in damage to the sutured tissues due to excessive compression force, or affecting suturing due to insufficient compression force due to insufficient compression force, thereby achieving switching of suture staples of different specifications for suturing according to the thickness of tissues at different positions, thereby achieving suturing of tissues of different thicknesses at different positions, thereby avoiding the bending of the suture staples when anastomosing thick tissues, which makes it easier to fall off the anastomosis site after anastomosis, and the insufficient anastomosis force of the suture staples when anastomosing thin tissues, resulting in poor hemostasis during anastomosis.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an electric stapler capable of staple lesion tissues of different thicknesses, comprising an operating handle, a connecting rod fixedly connected to one side of the operating handle, and a mounting head fixedly connected to one end of the connecting rod, the top of the mounting head being slidably connected to a nail magazine seat, the top of the mounting head being fixedly connected to a nail anvil, an electric drive assembly being installed in the operating handle, the electric drive assembly being used to drive the nail magazine seat to move relative to the nail anvil, two groups of nail magazine assemblies of different specifications being arranged in the nail magazine seat, the two groups of nail magazine assemblies of different specifications being arranged side by side, two rows of clamping assemblies being arranged on the nail anvil, the clamping assembly being slidable relative to the nail anvil, and a pressure sensor and a thickness sensor being arranged on the clamping assembly The device comprises a pressure sensor for monitoring the pressure of each part of the pressing component when it contacts and presses the human tissue; and further comprises a transverse hydraulic drive component, a first longitudinal hydraulic drive component and a second longitudinal hydraulic drive component; the second longitudinal hydraulic drive component is used to drive the pressing component to move relative to the nail anvil, and cooperate with the nail magazine seat to press the human tissue, when the thickness sensor detects that the thickness at the suturing position is different, the transverse hydraulic drive component is used to drive two groups of nail magazine components of different specifications to switch with each other, so that different suture staples on the nail magazine components of different specifications suture components of different thicknesses, and the first longitudinal hydraulic drive is used to drive one group of the nail magazine components to move relative to the nail magazine seat, and cooperate with the nail anvil to suture the human tissue.

[0007] Preferably, the two groups of nail magazine assemblies of different specifications include a plurality of first nail magazine plates and a plurality of second nail magazine plates, the first nail magazine plates and the second nail magazine plates are arranged side by side, a first supporting spring is fixedly connected between the first nail magazine plate and the inner wall of the nail magazine seat, a second supporting spring is fixedly connected between the second nail magazine plate and the inner wall of the nail magazine seat, a plurality of groups of slide rails are fixedly connected to the inner wall of the nail magazine seat, each group of the slide rails is slidably connected to a pair of mounting frames, the first nail magazine plate and the second nail magazine plate are respectively slidably connected to a pair of mounting frames, and the transverse hydraulic drive assembly includes a plurality of first hydraulic telescopic rods fixedly connected to the side wall of one side of the nail magazine seat, the first hydraulic telescopic rod corresponds to the mounting frame, and the The output end of the first hydraulic telescopic rod is fixedly connected to a side wall of one side of the mounting frame, the first longitudinal hydraulic assembly includes a second hydraulic telescopic rod fixedly connected to the bottom side wall of the nail magazine seat, in the initial state, the telescopic end of the second hydraulic telescopic rod corresponds to the position of the second nail magazine plate on the mounting frame, the second hydraulic telescopic rod and the first hydraulic telescopic rod are both installed with branch pipes, the branch pipes are installed with a first control valve, the branch pipes are installed with a connecting pipe, an oil tank and an oil pump are installed on the inner wall of the operating handle, the oil pump is connected to the oil tank, the oil outlet end of the oil pump is fixedly connected to a main oil pipe, one end of the main oil pipe is fixedly connected to a bellows, and one end of the bellows is fixedly connected to the connecting pipe.

[0008] Preferably, a return spring is fixedly connected between the second nail magazine plate and the first nail magazine plate and the corresponding mounting frame.

[0009] Preferably, a cover plate is fixedly connected to the top of the nail magazine seat, and a pinhole is formed on the cover plate, and a size of the pinhole is equal to that of the second nail magazine plate and the first nail magazine plate.

[0010] Preferably, the clamping assembly includes two rows of multiple clamping blocks, and the multiple clamping blocks in each row are evenly distributed in parallel relative to the length direction of the anvil. The clamping blocks are slidably connected to the anvil, and the pressure sensor and the thickness sensor are both installed on the clamping blocks. The second longitudinal hydraulic assembly includes a plurality of third hydraulic telescopic rods fixedly connected to the anvil, the number of the third hydraulic telescopic rods is equal to the number of the clamping blocks, and the telescopic ends of the third hydraulic telescopic rods are fixedly connected to the clamping blocks, the third hydraulic telescopic rods are fixedly connected to a branch pipe, the branch pipe is provided with a second control valve, the branch pipe is fixedly connected to an oil distribution pipe, and one end of the oil distribution pipe is fixedly connected to one end of the main oil pipe.

[0011] Preferably, the electric drive assembly includes a servo motor fixedly connected to the inner wall of the operating handle, the output end of the servo motor is fixedly connected to a driving gear, one side of the driving gear is meshed with a driving rack, one end of the driving rack is fixedly connected to a push rod, one end of the push rod is fixedly connected to one side of the nail magazine seat, and the driving rack is slidably connected to the inner wall of the operating handle.

[0012] Preferably, a controller is further included, and the controller is signal-connected to the electric drive assembly, the transverse hydraulic drive assembly, the first longitudinal hydraulic drive assembly and the second longitudinal hydraulic drive assembly.

[0013] Preferably, the connecting rod and the mounting head are fixedly connected by screws, and protective covers are provided at both ends of the screws, and the protective covers are buckled on the mounting head.

[0014] In summary, the technical effects and advantages of the present invention are as follows: the pressure sensor and the thickness sensor monitor the thickness of each tissue and the compression force applied to each tissue, thereby avoiding applying the same compression height to tissues of different thicknesses, causing damage to the sutured tissue due to excessive compression force, or causing insufficient compression force due to insufficient compression force, thereby affecting suturing; the thickness sensor realizes the detection of the thickness of tissues at different positions of the suture, and the transverse hydraulic drive component drives two groups of nail magazine components of different specifications to switch with each other, so that different suture staples on nail magazine components of different specifications suture components of different thicknesses, and the first longitudinal hydraulic drive component drives the nail magazine components at different positions to move, and enables suture staples of different specifications to suture tissues of different thicknesses, thereby realizing the use of suture staples of different specifications to sew tissues of different thicknesses, and the force during suturing can be controlled, thereby avoiding the bending and insufficient anastomosis of thick tissues during anastomosis, and the easy detachment from the anastomosis after anastomosis, and the insufficient anastomosis force of the suture staples during anastomosis of thin tissues, and the poor hemostatic effect during anastomosis, thereby affecting the healing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention from a first viewing angle;

[0018] Figure 3It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention from a second viewing angle;

[0019] Figure 4 This is a schematic diagram of an enlarged three-dimensional structure of the interior of a nail magazine seat of the present invention;

[0020] Figure 5 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 6 For the present invention Figure 2 Enlarged structural diagram at B in the middle.

[0022] In the figure: 1. operating handle; 2. connecting rod; 3. mounting head; 4. nail anvil; 5. nail magazine seat; 6. push rod; 7. servo motor; 8. driving gear; 9. driving rack; 10. oil tank; 11. oil pump; 12. main oil pipe; 13. slide rail; 14. first nail magazine plate; 15. second nail magazine plate; 16. first supporting spring; 17. second supporting spring; 18. first hydraulic telescopic rod; 19. second hydraulic telescopic rod; 20. bellows; 21. clamping block; 22. oil distribution pipe; 23. third hydraulic telescopic rod; 24. branch pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: Reference Figure 1-3 An electric stapler that can staple lesion tissues of different thicknesses is shown, comprising an operating handle 1, a connecting rod 2 fixedly connected to one side of the operating handle 1, and a mounting head 3 fixedly connected to one end of the connecting rod 2, a nail magazine seat 5 being slidably connected to the top of the mounting head 3, a nail anvil 4 being fixedly connected to the top of the mounting head 3, an electric driving assembly being installed in the operating handle 1, the electric driving assembly being used to drive the nail magazine seat 5 to move relative to the nail anvil 4, two groups of nail magazine assemblies of different specifications being arranged in the nail magazine seat 5, the two groups of nail magazine assemblies of different specifications being arranged side by side, two rows of pressing assemblies being arranged on the nail anvil 4, the pressing assemblies sliding relative to the nail anvil 4, a pressure sensor and a thickness sensor being arranged on the pressing assemblies, the pressure sensor being used to monitor the pressure of each point of the pressing assembly when it contacts and presses against human tissue;

[0025] Also included is a transverse hydraulic drive assembly, a first longitudinal hydraulic drive assembly, and a second longitudinal hydraulic drive assembly;

[0026] The second longitudinal hydraulic drive assembly is used to drive the pressing assembly to move relative to the nail anvil 4, and cooperate with the nail magazine seat 5 to press the human tissue. When the thickness sensor detects that the thickness at the suturing position is different, the transverse hydraulic drive assembly is used to drive the two groups of nail magazine assemblies of different specifications to switch with each other, so that different suture staples on nail magazine assemblies of different specifications suture components of different thicknesses. The first longitudinal hydraulic drive assembly is used to drive one group of nail magazine assemblies to move relative to the nail magazine seat 5, and cooperate with the nail anvil 4 to suture the human tissue;

[0027] When the electric drive assembly drives the staple cartridge seat 5 to approach the staple anvil 4, preliminary compression is performed on the suture position, and the pressure at the suture position is monitored by the pressure sensor, and the second longitudinal hydraulic drive assembly drives the compression assembly to compress tissues at positions of different thicknesses to different degrees, thereby avoiding applying the same compression height to tissues of different thicknesses, which may result in damage to the sutured tissue due to excessive compression force, or affect suturing due to insufficient compression force due to insufficient compression force. The thickness of tissues at different positions of the suture position is detected by setting a thickness sensor, and the transverse hydraulic drive assembly drives two sets of staple cartridge assemblies of different specifications. By switching with each other, different suture staples on staple cartridge assemblies of different specifications are used to suture assemblies of different thicknesses. The first longitudinal hydraulic drive assembly drives the staple cartridge assemblies at different positions to move, and enables suture staples of different specifications to suture tissues of different thicknesses, thereby realizing the use of suture staples of different specifications to sew tissues of different thicknesses, and the force during suturing can be controlled, thereby avoiding the bending and insufficient anastomosis of thick tissues during anastomosis, which makes it easier to fall off the anastomosis site after anastomosis, and the insufficient anastomosis force of the suture staples during anastomosis of thin tissues, resulting in poor hemostasis during anastomosis, which affects the healing effect.

[0028] As an implementation method in this embodiment, Figure 2 , Figure 4 , Figure 5As shown, two groups of nail magazine assemblies of different specifications include a plurality of first nail magazine plates 14 and a plurality of second nail magazine plates 15, the first nail magazine plates 14 and the second nail magazine plates 15 are arranged side by side, a first support spring 16 is fixedly connected between the first nail magazine plates 14 and the inner wall of the nail magazine seat 5, a second support spring 17 is fixedly connected between the second nail magazine plates 15 and the inner wall of the nail magazine seat 5, a plurality of groups of slide rails 13 are fixedly connected to the inner wall of the nail magazine seat 5, each group of slide rails 13 is slidably connected to a pair of mounting frames, the first nail magazine plates 14 and the second nail magazine plates 15 are respectively slidably connected to the pair of mounting frames, and the transverse hydraulic drive assembly includes a fixed A plurality of first hydraulic telescopic rods 18 are fixedly connected to the side wall of one side of the nail magazine seat 5, the first hydraulic telescopic rods 18 correspond to the mounting frame, and the output end of the first hydraulic telescopic rod 18 is fixedly connected to the side wall of one side of the mounting frame, the first longitudinal hydraulic assembly includes a second hydraulic telescopic rod 19 fixedly connected to the bottom side wall of the nail magazine seat 5, in the initial state, the telescopic end of the second hydraulic telescopic rod 19 corresponds to the position of the second nail magazine plate 15 on the mounting frame, the second hydraulic telescopic rod 19 and the first hydraulic telescopic rod 18 are both installed with branch pipes, the branch pipes are installed with first control valves, and the branch pipes are installed with connecting pipes, An oil tank 10 and an oil pump 11 are installed on the inner wall of the operating handle 1. The oil pump 11 is connected to the oil tank 10. The oil outlet end of the oil pump 11 is fixedly connected to the main oil pipe 12. One end of the main oil pipe 12 is fixedly connected to the bellows 20. One end of the bellows 20 is fixedly connected to the connecting pipe. The oil pump 11 drives the first hydraulic telescopic rod 18 to push the mounting frame to move on the slide rail 13 on the nail magazine seat 5. The first support spring 16 and the second support spring 17 cooperate to realize the switching between the first nail magazine plate 14 and the second nail magazine plate 15. Suture nails of different specifications are installed on the first nail magazine plate 14 and the second nail magazine plate 15. , according to the thickness of tissues at different positions, different specifications of suture staples are switched for suturing, so that tissues of different thicknesses at different positions can be suturing, and the bending of the suture staples when anastomosing thick tissues can be avoided, and the suture staples are easily dropped from the anastomosis after anastomosis, and the suture staples have insufficient anastomosis force when anastomosing thin tissues, resulting in poor hemostasis during anastomosis. The oil pump 11 drives the second hydraulic telescopic rod 19 to make the first staple magazine plate 14 and the second staple magazine plate 15 at different positions slide out of the mounting frame, and cooperate with the staple anvil 4 to suturing the tissues, so as to realize suture force control and improve suture effect.

[0029] In this embodiment, return springs (not shown) are fixedly connected between the second nail magazine plate 15 and the first nail magazine plate 14 and the corresponding installation frames. By setting the return springs, the second nail magazine plate 15 and the first nail magazine plate 14 automatically return to their original positions relative to the installation frames.

[0030] In this embodiment, if Figure 3As shown, a cover plate is fixedly connected to the top of the nail magazine seat 5, and a pinhole is provided on the cover plate. The size of the pinhole is equal to that of the second nail magazine plate 15 and the first nail magazine plate 14. The advantage of such a setting is that interference with the cover plate is avoided when the first nail magazine plate 14 and the second nail magazine plate 15 are moved out from the nail magazine seat 5.

[0031] As an implementation method in this embodiment, Figure 6 As shown, the clamping assembly includes two rows of multiple clamping blocks 21, each row of multiple clamping blocks 21 are evenly distributed in parallel relative to the length direction of the nail anvil 4, the clamping blocks 21 are slidably connected to the nail anvil 4, the pressure sensor and the thickness sensor are installed on the clamping block 21, and the second longitudinal hydraulic assembly includes a plurality of third hydraulic telescopic rods 23 fixedly connected to the nail anvil 4, the number of the third hydraulic telescopic rods 23 is equal to the number of the clamping blocks 21, and the telescopic ends of the third hydraulic telescopic rods 23 are fixedly connected to the clamping block 21, and the third hydraulic telescopic rods 23 are fixedly connected to the branch pipe 24, and the branch pipe 24 is provided with a second control valve The branch pipe 24 is fixedly connected with an oil distribution pipe 22, one end of the oil distribution pipe 22 is fixedly connected to one end of the main oil pipe 12, and the oil pump 11 drives the telescopic end of the third hydraulic telescopic rod 23 to move, and the telescopic end of the third hydraulic telescopic rod 23 moves to drive the pressing block 21 to slide on the nail anvil 4, and cooperate with the nail magazine seat 5 to compress the tissue. Through the pressure sensor and the thickness sensor, the thickness of each tissue and the pressing force applied to each tissue are monitored, so as to avoid applying the same pressing height to tissues of different thicknesses, which may cause damage to the sutured tissue due to excessive pressing force, or affect the suture due to insufficient pressing force due to insufficient pressing force.

[0032] As an implementation method in this embodiment, Figure 2 As shown, the electric drive assembly includes a servo motor 7 fixedly connected to the inner wall of the operating handle 1, the output end of the servo motor 7 is fixedly connected to a driving gear 8, one side of the driving gear 8 is meshed with a driving rack 9, one end of the driving rack 9 is fixedly connected to a push rod 6, one end of the push rod 6 is fixedly connected to one side of the nail magazine seat 5, the driving rack 9 is slidably connected to the inner wall of the operating handle 1, the output end of the servo motor 7 rotates to drive the driving gear 8 to rotate, the driving gear 8 is meshed with the driving rack 9, and drives the driving rack 9 to move relative to the operating handle 1, thereby pushing the push rod 6 to wait for the nail magazine seat 5 to cooperate with the nail anvil 4 to perform preliminary compression on the tissue.

[0033] As an implementation method in this embodiment, Figure 2 As shown, it also includes a controller, which is signal-connected to the electric drive component, the transverse hydraulic drive component, the first longitudinal hydraulic drive component and the second longitudinal hydraulic drive component. By setting the controller, intelligent control is achieved, and the controller can be a PLC controller in the prior art.

[0034] In this embodiment, if Figure 1 As shown, the connecting rod 2 and the mounting head 3 are fixedly connected by screws, and protective covers are provided at both ends of the screws, which are buckled on the mounting head 3. The advantage of such a setting is that sharp corners at both ends of the screws are prevented from scratching tissues.

[0035] Working principle of the present invention:

[0036] The output end of the servo motor 7 rotates to drive the driving gear 8 to rotate, and the driving gear 8 meshes with the driving rack 9, driving the driving rack 9 to move relative to the operating handle 1, thereby pushing the push rod 6 to wait for the nail magazine seat 5 to cooperate with the nail anvil 4 to preliminarily compress the tissue, and the oil pump 11 drives the telescopic end of the third hydraulic telescopic rod 23 to move, and the telescopic end of the third hydraulic telescopic rod 23 moves to drive the pressing block 21 to slide on the nail anvil 4, and cooperate with the nail magazine seat 5 to compress the tissue. Through the pressure sensor and the thickness sensor, the thickness of each tissue and the pressing force applied to each tissue are monitored, so as to avoid applying the same pressing height to tissues of different thicknesses, and the pressing force is too large to cause damage to the sutured tissue, or the pressing force is too small to cause insufficient pressing force and affect suturing;

[0037] At the same time, when the thickness sensor detects that the tissue thickness at different positions is different, the oil pump 11 drives the first hydraulic telescopic rod 18 to push the mounting frame to move on the slide rail 13 on the staple magazine seat 5, and cooperates with the elastic force of the first support spring 16 and the second support spring 17 to realize the switching between the first staple magazine plate 14 and the second staple magazine plate 15. Suture staples of different specifications are installed on the first staple magazine plate 14 and the second staple magazine plate 15, so that according to the tissues with different thicknesses at different positions, suture staples of different specifications are switched for suturing, so that tissues with different thicknesses at different positions can be suturing, and when tissues with different thicknesses are anastomosed, the suture staples are not bent and insufficiently anastomosed when thick tissues are anastomosed, which makes it easier to get out after anastomosis. The anastomosis site falls off, the anastomosis force of the suture staples is insufficient when the thin tissue is anastomosed, and the hemostatic effect during the anastomosis is poor. The oil pump 11 drives the second hydraulic telescopic rod 19 to make the first staple magazine plate 14 and the second staple magazine plate 15 at different positions slide out from the mounting frame, and cooperate with the staple anvil 4 to sew the tissue, thereby realizing the control of the suturing force and improving the suturing effect. It is realized that the suturing of tissues of different thicknesses is carried out using suture staples of different specifications, and the force during suturing can be controlled, which avoids the bending of the suture staples when the thick tissue is anastomosed, and the suture staples are easy to fall off from the anastomosis after anastomosis. When the thin tissue is anastomosed, the anastomosis force of the suture staples is insufficient, and the hemostatic effect during the anastomosis is poor, which affects the healing effect.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric stapler capable of staple lesion tissues of different thicknesses, comprising an operating handle (1), a connecting rod (2) fixedly connected to one side of the operating handle (1), and a mounting head (3) fixedly connected to one end of the connecting rod (2), a staple cartridge seat (5) being slidably connected to the top of the mounting head (3), and a staple anvil (4) being fixedly connected to the top of the mounting head (3), characterized in that: An electric drive assembly is installed in the operating handle (1), and the electric drive assembly is used to drive the nail magazine seat (5) to move relative to the nail anvil (4). Two groups of nail magazine assemblies of different specifications are arranged in the nail magazine seat (5), and the two groups of nail magazine assemblies of different specifications are arranged side by side. Two rows of pressing assemblies are arranged on the nail anvil (4), and the pressing assemblies slide relative to the nail anvil (4). The pressing assemblies are provided with pressure sensors and thickness sensors, and the pressure sensors are used to monitor the pressure of each part of the pressing assembly when it contacts and presses against human tissue; Also included is a transverse hydraulic drive assembly, a first longitudinal hydraulic drive assembly, and a second longitudinal hydraulic drive assembly; The second longitudinal hydraulic drive assembly is used to drive the pressing assembly to move relative to the nail anvil (4) and cooperate with the nail magazine seat (5) to press the human tissue. When the thickness sensor detects that the thickness at the suturing position is different, the transverse hydraulic drive assembly is used to drive two groups of nail magazine assemblies of different specifications to switch with each other, so that different suture staples on the nail magazine assemblies of different specifications suture components of different thicknesses. The first longitudinal hydraulic drive is used to drive one group of the nail magazine assemblies to move relative to the nail magazine seat (5) and cooperate with the nail anvil (4) to suture the human tissue. The two groups of nail magazine assemblies of different specifications include a plurality of first nail magazine plates (14) and a plurality of second nail magazine plates (15), the first nail magazine plates (14) and the second nail magazine plates (15) being arranged side by side, a first support spring (16) being fixedly connected between the first nail magazine plates (14) and the inner wall of the nail magazine seat (5), a second support spring (17) being fixedly connected between the second nail magazine plates (15) and the inner wall of the nail magazine seat (5), a plurality of groups of slide rails (13) being fixedly connected to the inner wall of the nail magazine seat (5), each group of the slide rails (13) being slidably connected to a pair of mounting frames, the first nail magazine plates (14) and the second nail magazine plates (15) being fixedly connected to the inner wall of the nail magazine seat (5), 15) are respectively slidably connected to a pair of the mounting frames, the transverse hydraulic drive assembly includes a plurality of first hydraulic telescopic rods (18) fixedly connected to a side wall of one side of the nail magazine seat (5), the first hydraulic telescopic rod (18) corresponds to the mounting frame, and the output end of the first hydraulic telescopic rod (18) is fixedly connected to a side wall of one side of the mounting frame, the first longitudinal hydraulic drive assembly includes a second hydraulic telescopic rod (19) fixedly connected to the bottom side wall of the nail magazine seat (5), in the starting state, the telescopic end of the second hydraulic telescopic rod (19) corresponds to the position of the second nail magazine plate (15) on the mounting frame.

2. The electric stapler capable of staple lesions of different thicknesses according to claim 1, characterized in that: The second hydraulic telescopic rod (19) and the first hydraulic telescopic rod (18) are both provided with a branch pipe, a first control valve is provided on the branch pipe, a connecting pipe is provided on the branch pipe, an oil tank (10) and an oil pump (11) are provided on the inner wall of the operating handle (1), the oil pump (11) is connected to the oil tank (10), an oil outlet end of the oil pump (11) is fixedly connected to a main oil pipe (12), one end of the main oil pipe (12) is fixedly connected to a bellows (20), and one end of the bellows (20) is fixedly connected to the connecting pipe.

3. The electric stapler capable of staple lesion tissues of different thicknesses according to claim 2, characterized in that: A return spring is fixedly connected between the second nail magazine plate (15) and the first nail magazine plate (14) and the corresponding installation frame.

4. The electric stapler capable of staple lesions of different thicknesses according to claim 2, characterized in that: A cover plate is fixedly connected to the top of the nail magazine seat (5), and a pinhole is provided on the cover plate. The size of the pinhole is equal to that of the second nail magazine plate (15) and the first nail magazine plate (14).

5. The electric stapler capable of staple lesion tissues of different thicknesses according to claim 2, characterized in that: The clamping assembly comprises two rows of a plurality of clamping blocks (21), each row of the plurality of clamping blocks (21) being evenly distributed in parallel in the length direction of the nail anvil (4), the clamping blocks (21) being slidably connected to the nail anvil (4), the pressure sensor and the thickness sensor being mounted on the clamping blocks (21), and the second longitudinal hydraulic drive assembly comprising a plurality of third hydraulic telescopic rods (23) fixedly connected to the nail anvil (4), the number of the third hydraulic telescopic rods (23) being equal to the number of the clamping blocks (21), and the telescopic ends of the third hydraulic telescopic rods (23) being fixedly connected to the clamping block (21), the third hydraulic telescopic rods (23) being fixedly connected to a branch pipe (24), the branch pipe (24) being provided with a second control valve, the branch pipe (24) being fixedly connected to an oil distribution pipe (22), one end of the oil distribution pipe (22) being fixedly connected to one end of the main oil pipe (12).

6. The electric stapler capable of staple lesion tissues of different thicknesses according to claim 1, characterized in that: The electric drive assembly comprises a servo motor (7) fixedly connected to the inner wall of the operating handle (1); the output end of the servo motor (7) is fixedly connected to a driving gear (8); one side of the driving gear (8) is meshed with a driving rack (9); one end of the driving rack (9) is fixedly connected to a push rod (6); one end of the push rod (6) is fixedly connected to one side of the nail magazine seat (5); and the driving rack (9) is slidably connected to the inner wall of the operating handle (1).

7. The electric stapler capable of staple lesion tissues of different thicknesses according to claim 1, characterized in that: It also includes a controller, which is signal-connected to the electric drive assembly, the transverse hydraulic drive assembly, the first longitudinal hydraulic drive assembly, and the second longitudinal hydraulic drive assembly.

8. The electric stapler capable of staple lesion tissues of different thicknesses according to claim 1, characterized in that: The connecting rod (2) and the mounting head (3) are fixedly connected by means of screws, and protective covers are provided at both ends of the screws, and the protective covers are buckled onto the mounting head (3).

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