Electric anastomat

Abstract

An electric anastomat, which comprises an anastomosis assembly and a driving assembly, wherein the driving assembly comprises: a main driving assembly, a rotating assembly, and an angular movement assembly; the main driving assembly is used for driving the anastomosis assembly to close, anastomose, or retract; the rotating assembly is used for driving the anastomosis assembly to rotate 360 degrees; and the angular movement assembly is used for driving the anastomosis assembly to move left and right; the main driving assembly, the rotating assembly, and the angular movement assembly each comprise a motor and a gear assembly, and the main driving assembly, the rotating assembly, and the swing assembly are mutually unaffected by each other during operation; the electric anastomat further comprises a main control chip, an angular movement positioning assembly, and a mount confirmation assembly, wherein the main control chip is cooperates with the angular movement positioning assembly to confirm whether the angular movement assembly is at the zero position, and the main control chip cooperates with the mount confirmation assembly to confirm whether the anastomosis assembly has been correctly mounted. By the provision of an electric assembly, the electric anastomat is more intelligent, and consequently surgical efficiency can be improved, and the difficulty of manipulation by a doctor can be reduced.

Description

An electric stapler

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202310883083.2 and application date of July 18, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of medical devices, and in particular to an electric stapler. Background Art

[0004] Laparoscopic staplers are commonly used instruments in surgical operations, which can help doctors quickly complete the actions of cutting and suturing tissues. With the development of technology, electric laparoscopic staplers have been widely adopted. Some operations of the staplers are performed in an electric form instead of a manual form, which enables doctors to perform some operations of the laparoscopic stapler by touching the buttons on the handle with their fingers. However, since the movement of the stapler includes not only the swinging and rotation of the actuator, and the closing and firing of the stapler, but also requires the use of multiple electric components for intelligent control, the electric staplers in the existing technology are not intelligent enough. How to realize the intelligence of various operations so that the electric stapler is more convenient to operate is a technical problem that needs to be solved urgently.

[0005] Summary of the Invention

[0006] In view of this, the present invention aims to solve the technical problem of how to achieve more intelligent operation of the electric stapler.

[0007] The present application provides an electric stapler, comprising an anastomosis assembly and a drive assembly, wherein the drive assembly comprises: a main drive assembly, a rotation assembly, and a swing assembly; the main drive assembly is used to drive the anastomosis assembly to close, anastomose, and retract; the rotation assembly is used to drive the anastomosis assembly to rotate 360 ​​degrees; and the swing assembly is used to drive the anastomosis assembly to swing left and right;

[0008] The main drive assembly, the rotating assembly and the swing assembly all include motors and gear assemblies, and the main drive assembly, the rotating assembly and the swing assembly do not affect each other during operation;

[0009] The electric stapler also includes: a main control chip, a swing angle positioning component and a loading confirmation component; wherein, the main control chip cooperates with the swing angle positioning component to confirm whether the swing angle component is in zero position, and the main control chip cooperates with the loading confirmation component to confirm whether the stapler component is correctly loaded.

[0010] Furthermore, the swing angle positioning assembly includes a swing angle positioning switch and a positioning blocking component, and the swing angle positioning switch detects the positioning blocking component to determine the position of the swing angle assembly; and / or, the loading confirmation assembly includes a loading switch and a loading blocking component, and the loading switch detects the loading blocking component to determine whether the anastomosis assembly is correctly loaded.

[0011] Furthermore, the electric stapler includes a firing push rod, a firing rod sleeve and a loading slider, one end of the firing push rod is connected to the main drive assembly, and the other end of the firing push rod is connected to the anastomosis assembly when the anastomosis assembly is installed, and the firing push rod passes through the rotating assembly and the swing angle assembly; the loading slider is sleeved on the firing push rod, and its end face is against one end face of the firing rod sleeve that is also sleeved on the firing push rod, and the loading slider and the firing rod sleeve can both slide along the axis of the firing push rod, and the other end face of the firing rod sleeve is against the anastomosis assembly after loading. After the anastomosis assembly is loaded, it pushes the firing rod sleeve to move, thereby pushing the loading slider to move toward the proximal end.

[0012] Furthermore, the main drive assembly includes: a firing generator, a firing gear, a firing driven gear, and a firing rack. The distal end of the firing rack is connected to the proximal end of the firing push rod, and the firing push rod can rotate freely around the axis relative to the firing rack; the firing gear is engaged with the firing driven gear, and the firing driven gear is engaged with the firing rack. When the firing generator rotates forward or reverse according to the main control instruction, the rotational motion is converted into linear motion through the firing gear, the firing driven gear, and the firing rack, thereby driving the anastomosis assembly to perform closing, anastomosis, and retraction functions.

[0013] Furthermore, the electric stapler includes a barrel assembly, the stapler assembly is loaded on the barrel assembly, the rotating assembly includes a rotating motor, a rotating drive gear, and a rotating driven gear, and the rotating assembly is connected to the barrel assembly through the fixed block, wherein the rotating drive gear is engaged with the rotating driven gear.

[0014] Furthermore, the rotationally driven gear includes a gear portion and a cylindrical portion, the gear portion includes a central circular hole, and one end of the cylindrical portion passes through the central circular hole and is fixed to the gear portion.

[0015] Furthermore, the fixed block is provided with a first clamping platform and a second clamping platform, the cylindrical portion of the rotating driven gear is provided with a cylindrical clamping groove corresponding to the second clamping platform, the barrel assembly is provided with a barrel assembly clamping groove, the fixed block is fixed to the rotating driven gear through the second clamping platform and the cylindrical clamping groove, and the fixed block is fixed to the barrel assembly through the first clamping platform and the barrel assembly clamping groove.

[0016] Furthermore, there are two fixing blocks, and the two fixing blocks are clamped together by a clamping assembly, and the two fixing blocks after being clamped together surround the outer circumference of the cylindrical portion as a whole.

[0017] Furthermore, the clamping assembly includes a boss provided on one of the fixing blocks, and a groove provided on the other fixing block, wherein the groove is provided corresponding to the boss.

[0018] Furthermore, the swing angle assembly includes a swing angle motor, a swing angle screw, a swing angle drive gear and a swing angle driven gear, the swing angle drive gear and the swing angle driven gear are meshed, and the swing angle driven gear is spirally matched with the swing angle screw. The swing angle motor rotates through the swing angle drive gear and the swing angle driven gear to drive the swing angle screw to move forward and backward; the swing angle screw passes through the rotating driven wheel and can move forward and backward; the swing angle screw is a hollow structure, the firing push rod passes through the hollow structure of the swing angle screw and can move forward and backward in the swing angle screw, the firing rod sleeve is sleeved on the firing push rod and passes through the hollow structure of the swing angle screw, and can move forward and backward in the swing angle screw.

[0019] Furthermore, the electric stapler also includes a main circuit board and a sub-circuit board, and the main circuit board and the sub-circuit board are respectively located on both sides of the electric stapler. The control circuit and the first guide button of the electric stapler are set on the main circuit board, and the second guide button is set on the sub-circuit board, wherein the first guide button and the second guide button are symmetrically arranged and have the same functions.

[0020] Furthermore, the first guide button and the second guide button have trigger functions in five directions, namely, pressing left and right, front and back, and downward, which respectively correspond to the rotation of the anastomosis component, the left and right swing angle of the anastomosis component, and the start-up firing confirmation function of the anastomosis component.

[0021] Furthermore, the positioning blocking component is a screw stroke plate, wherein there are two screw stroke plates, which are arranged side by side on the swing angle screw, and a notch is provided in the middle of the two screw stroke plates, and the width of the notch is not less than the sensing width of the swing angle positioning switch; when the swing angle screw moves back and forth, the swing angle positioning switch detects the notch, and when it is detected that the notch is located in the middle position of the swing angle positioning switch, the information is fed back to the main control chip, and the main control chip sends a signal to prompt that the swing angle assembly is at zero position.

[0022] Furthermore, the loading confirmation component includes a loading switch and a loading blocking component, and the loading blocking component is detected by the loading switch to determine whether the anastomosis component is correctly loaded; wherein, the loading blocking component is a slider flange provided on the loading slider, and after the anastomosis component is loaded, the firing rod sleeve pushes the loading slider to move, and the slider flange on the loading slider touches or blocks the loading switch, and the potential of the loading switch changes, and the potential change information is transmitted to the main control chip, and the main control chip sends a signal to indicate that the anastomosis component has been loaded.

[0023] Furthermore, after the anastomosis assembly is loaded and before it is closed, the swing angle and rotation angle of the anastomosis assembly are adjusted through the first guide button or the second guide button; when the anastomosis assembly is closed, the main control chip will lock the swing angle and rotation functions, and the swing angle and rotation angle of the anastomosis assembly can no longer be adjusted. If readjustment is required, the electric stapler needs to be fired and reset to the initial position.

[0024] After adopting such a design, the present invention has at least the following advantages:

[0025] (1) The electric stapler of the present invention can facilitate the doctor's operation by providing an electric main drive component, a rotation component and a swing angle component, thereby improving efficiency and shortening the operation time.

[0026] (2) The electric stapler of the present invention is provided with a swing angle positioning component and a loading confirmation component, which can improve the accuracy of the electric stapler and reduce the difficulty of operation.

[0027] (3) The electric stapler of the present invention is operated by buttons, which can be operated with one hand, greatly reducing the difficulty of operation.

[0028] (4) The present invention has an ingenious structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of the overall structure of the electric stapler of the present invention;

[0030] FIG2 is a schematic diagram of the internal structure of the driving portion of the electric stapler of the present invention;

[0031] FIG3 is a schematic structural diagram of a swing angle assembly and a rotating assembly of the present invention;

[0032] FIG4 is a schematic diagram of the internal structure of the swing assembly and the rotating assembly of the present invention;

[0033] FIG5 is a schematic diagram of the first circuit board installation structure of the present invention;

[0034] FIG6 is a schematic diagram of a second circuit board installation structure of the present invention;

[0035] 7 is a schematic structural diagram of a swing angle positioning assembly and a loading confirmation assembly of the present invention;

[0036] FIG8 is a schematic structural diagram of a fixed block of the present invention;

[0037] Figure 9 is a schematic structural diagram of the swing angle screw of the present invention;

[0038] FIG10 is a schematic diagram of the structure of the swing crank of the present invention;

[0039] FIG11 is a schematic diagram of the present invention showing a swing angle zero position state;

[0040] FIG12 is a schematic diagram of the first limit state of the swing angle of the present invention;

[0041] FIG13 is a schematic diagram of the second limit state of the swing angle of the present invention;

[0042] FIG14 is a schematic diagram showing the cooperation between the firing push rod and the swing angle screw of the present invention. DETAILED DESCRIPTION

[0043] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation methods should be understood as an explanation of this application and should not be regarded as an improper restriction on this application.

[0044] In the description of the embodiments of the present application, the terms "upper" and "lower" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0045] In the following, the end of each component close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end. The expressions of proximal end and distal end are only used to simplify and clarify the description and should not be understood as any limitation of the present invention.

[0046] Referring to Figures 1 to 13 , an electric stapler includes a stapler assembly and a drive assembly, wherein the drive assembly comprises a main drive assembly, a rotating assembly, and a swing assembly. The main drive assembly is used to drive the stapler assembly to close, staple, and retract; the rotating assembly is used to drive the stapler assembly to rotate 360 ​​degrees; and the swing assembly is used to drive the stapler assembly to swing left and right. The main drive assembly, the rotating assembly, and the swing assembly each comprise a motor and a gear assembly. The electric stapler also includes a main control chip, a swing angle positioning assembly, and a loading confirmation assembly. The main control chip cooperates with the swing angle positioning assembly to confirm whether the swing angle assembly is in the zero position, and the main control chip cooperates with the loading confirmation assembly to confirm whether the stapler assembly is correctly loaded. The main drive assembly, the rotating assembly, and the swing angle assembly do not affect each other during operation.

[0047] Further, referring to FIG14 , the electric stapler includes a firing push rod 301, one end of which is connected to the main drive assembly. When the anastomosis assembly is installed, the other end of the firing push rod 301 is connected to the anastomosis assembly. The firing push rod 301 passes through the rotation assembly and the swing angle assembly. The electric stapler also includes a firing rod sleeve 303 and a loading slider 206. The loading slider 206 is inserted into the firing push rod 301, and its end face abuts one end face of the firing rod sleeve 303, which is also inserted into the firing push rod 301. The loading slider 206 and the firing rod sleeve 303 can both slide along the axis of the firing push rod 301. The firing rod sleeve 303 passes through the central through hole of the swing angle screw 205, and its other end face abuts the loaded anastomosis assembly. After the anastomosis assembly is loaded, it pushes the firing rod sleeve 303 to move, thereby pushing the loading slider 206 to move proximally.

[0048] The main drive assembly includes: a firing generator 101, a firing gear 102, a firing driven gear 103, and a firing rack 104. The distal end of the firing rack 104 is connected to the proximal end of the firing push rod 301, and the firing push rod 301 can rotate freely around the axis relative to the firing rack 104; the firing gear 102 is engaged with the firing driven gear 103, and the firing driven gear 103 is engaged with the firing rack 104; when the firing generator 101 rotates forward or reverse according to the main control instruction, the rotational motion is converted into linear motion through the firing gear 102, the firing driven gear 103, and the firing rack 104, thereby driving the anastomosis assembly to perform closing, anastomosis and retraction functions.

[0049] Referring to Figures 2 to 4 , the rotating assembly includes a rotating motor 201, a rotating drive gear 2032, and a rotating driven gear 2031. The rotating assembly is connected to the barrel assembly 30 via a fixed block 2041. The rotating driven gear 2031 includes a gear portion and a cylindrical portion. The gear portion includes a central circular hole. One end of the cylindrical portion passes through the central circular hole and is fixed to the gear portion. The rotating drive gear 2032 meshes with the rotating driven gear 2031. The rotating motor 201 includes a non-circular output shaft. The rotating drive gear 2032 includes a central hole that matches the shape of the output shaft. The output shaft passes through the central hole of the rotating drive gear 2032, driving the rotating drive gear 2032 to rotate about an axis. The rotation of the rotating drive gear 2032 drives the rotating driven gear 2031 to rotate, which in turn drives the barrel assembly 30 to rotate via the fixed block 2041.

[0050] Furthermore, there are two fixing blocks 2041, and the two fixing blocks 2041 are clamped together by a clamping assembly. The specific structure of the clamping assembly is not limited, as long as the two fixing blocks 2041 can be clamped together. Preferably, referring to Figure 8, the clamping structure includes a boss 20412 arranged on one fixing block 2041 and a groove arranged on the other fixing block 2041 corresponding to the boss 20412. Each fixed block 2041 is provided with a first latching plate 20410 and a second latching plate 20411. The cylindrical portion of the rotating driven gear 2031 is provided with a cylindrical latching slot 20310 corresponding to the second latching plate 20411. The barrel assembly 30 is provided with a barrel assembly latching slot 3020. The fixed block 2041 is secured to the rotating driven gear 2031 via the second latching plate 20411 and the cylindrical latching slot 20310. The fixed block 2041 is also secured to the barrel assembly 30 via the first latching plate 20410 and the barrel assembly latching slot 3020. When the rotating driven gear 2031 rotates, the barrel assembly 30 and the anastomosis assembly loaded thereon are driven to rotate via the fixed block 2041, thereby achieving the rotation function of the distal anastomosis assembly.

[0051] Please refer to Figures 3 and 4. The swing angle assembly includes a swing angle motor 203, a swing angle screw 205, a swing angle drive gear 2033 and a swing angle driven gear 2034. The swing angle drive gear 2033 and the swing angle driven gear 2034 are meshed, and the swing angle driven gear 2034 is spirally matched with the swing angle screw 205. The swing angle motor 203 rotates through the swing angle drive gear 2033 and the swing angle driven gear 2034 to drive the swing angle screw 205 to move back and forth; the swing angle screw 205 passes through the cylindrical part of the rotating driven wheel 2031 and can move back and forth in the cylindrical part; the swing angle screw 205 is a hollow structure, and the firing push rod 301 passes through the swing angle screw 205 and can move back and forth in the swing angle screw 205.

[0052] Furthermore, the swing angle driven gear 2034 has a center hole with threads on the wall thereof, and the outer wall of the swing angle lead screw 205 has corresponding threads; preferably, the threads may be triangular, trapezoidal, or rectangular. The swing angle motor 203 includes a non-circular output shaft, and the swing angle drive gear 2033 has a center hole that matches the shape of the output shaft. The output shaft passes through the center hole of the swing angle drive gear 2033 to drive the swing angle drive gear 2033 to rotate about its axis. The rotation of the swing angle drive gear 2033 drives the rotation of the swing angle driven gear 2034, which in turn drives the swing angle lead screw 205 to move forward and backward.

[0053] Further, please refer to Figure 7. The swing angle assembly also includes a swing angle crank 209 and a swing angle connecting rod 211. There is a crank ring groove 2052 on the swing angle screw 205 (see Figure 9), which cooperates with the annular clamping base 2091 on the swing angle crank 209 (see Figure 10). The swing angle crank 209 is fixedly connected to the swing angle connecting rod 211 through the crank pull pin 210. When the swing angle screw 205 moves back and forth, it drives the swing angle crank 209 to move back and forth, thereby driving the swing angle connecting rod 211 to move back and forth, so as to realize the left and right swing angle function of the distal anastomosis assembly.

[0054] Please refer to Figures 2 and 4. The electric stapler also includes a first bracket 105, a second bracket 200, and a gear rack 203. The second bracket 200 and the gear rack 203 are fixed on the first bracket 105, the main drive assembly is fixed on the first bracket 105, the rotating motor 201 and the swing motor 202 are fixed on the second bracket 200, and the gear assemblies of the rotating assembly and the swing assembly are arranged in the gear rack 203.

[0055] Further, referring to Figures 5 to 6, the electric stapler includes a main circuit board 106 and a sub-circuit board 107, which are respectively fixed on both sides of the first bracket 105. The control circuit of the electric stapler and a first guide button 1061 are set on the main circuit board 106, and the second guide button 1071 is set on the sub-circuit board 107. The first guide button 1061 and the second guide button 1071 are symmetrically arranged and have the same functions. The first guide button 1061 and the second guide button 1071 have trigger functions in five directions, namely left and right, front and back, and downward pressing, which respectively correspond to the rotation of the stapler assembly, the left and right swing angle of the stapler assembly, and the start-up and firing confirmation function of the stapler assembly.

[0056] Further, referring to FIG7 and FIG9 , the swing angle positioning assembly includes a swing angle positioning switch 2082 and a positioning blocking component, and the swing angle positioning switch 2082 detects the positioning blocking component to determine the position of the swing angle assembly.

[0057] Preferably, the positioning blocking component is a screw stroke piece 2051, wherein there are two screw stroke pieces 2051, which are arranged side by side on the swing angle screw 205, and a notch is provided in the middle of the two screw stroke pieces 2051, and the width of the notch is not less than the sensing width of the swing angle positioning switch 2082; when the swing angle screw 205 moves forward and backward, the swing angle positioning switch 2082 detects the notch, and when it is detected that the notch is located in the middle position of the swing angle positioning switch 2082, the information is fed back to the main control chip, and the main control chip sends a signal to prompt that the swing angle assembly is at zero position.

[0058] The loading confirmation component includes a loading switch 2081 and a loading blocking component. The loading switch 2081 detects the loading blocking component to determine whether the anastomosis assembly is correctly loaded. The loading blocking component is a slider flange 2061 provided on the loading slider 206. After the anastomosis assembly is loaded, the firing rod sleeve 303 pushes the loading slider 206 to move. The slider flange 2061 on the loading slider 206 contacts or blocks the loading switch 2081, causing the potential of the loading switch 2081 to change. This potential change information is transmitted to the main control chip, which then issues a signal indicating that the anastomosis assembly has been loaded.

[0059] Furthermore, the electric stapler also includes a swing angle driving circuit board, the loading switch 2081 and the swing angle positioning switch 2082 are fixed on the swing angle driving circuit board, and the swing angle driving circuit board is arranged on the first bracket 105.

[0060] Referring to Figure 1 , the electric stapler also includes a removable battery pack 40 for powering the device. The main drive assembly is equipped with a firing zero position confirmation assembly. Once the battery pack 40 is loaded, the main control chip detects whether the battery pack 40 meets the requirements for use. If not, an alarm signal is issued. If so, the main control chip sends a command to the firing generator 101, which then uses the firing zero position confirmation assembly to identify the firing zero position. Upon successful identification, the next step proceeds.

[0061] There is no limitation on the specific structure of the firing zero position confirmation component, as long as the firing zero position confirmation can be achieved.

[0062] After the firing zero position is successfully identified, the main control chip sends an instruction to the swing angle motor 202 for swing angle zero position identification, and the swing angle motor 202 starts to rotate, so that the swing angle driving gear 2033 drives the swing angle driven gear 2034 to rotate, further driving the swing angle screw 205 to move back and forth, and the swing angle positioning switch 2082 will detect the notch on the screw stroke piece 2051 set on the swing angle screw 205. After detection, the information is fed back to the main control chip to determine the swing angle zero position; after the swing angle zero position is successfully identified, the main control chip sends a signal to the operator, and the operator further loads the disposable anastomosis component. After the anastomosis component is loaded, the anastomosis component will push the firing rod sleeve 303 to move proximally, and the firing rod sleeve 303 passes through the central through hole of the swing angle screw 205, thereby pushing the loading slider 206 to move proximally, and the slider flange 2061 on the loading slider 206 touches or blocks the loading switch 2081, causing its potential to change, thereby giving the main control chip a signal to indicate that the anastomosis component has been loaded.

[0063] After the anastomosis component is successfully loaded, the main control chip waits for the anastomosis component information to be refreshed. At this time, the operator needs to use the electronic tag storing the anastomosis component information to swipe it in the instrument identification area. The main control chip reads and writes the electronic tag information and calls the corresponding logic program to perform anastomosis control. At this time, the instrument is fully activated, and the jaws (i.e., the anastomosis component) can be closed and opened, the jaws (i.e., the anastomosis component) can be rotated, and the swing angle of the jaws (i.e., the anastomosis component) can be adjusted. When necessary, the operator can trigger the four directions of the guide button (the first guide button 1061 or the second guide button 1071) respectively to adjust the swing angle or rotation of the jaws (i.e., the anastomosis component).

[0064] When the guide button (the first guide button 1061 or the second guide button 1071) is pressed forward and backward, the swing angle motor 202 rotates, and drives the swing angle screw 205 to move forward and backward through the swing angle driving gear 2033 and the swing angle driven gear 2034. The swing angle crank 209 and the swing angle connecting rod 211 move with the displacement of the swing angle screw 205, thereby realizing the swing angle of the matching component. When the gap of the screw stroke piece 2051 (see Figure 10, corresponding to the swing angle zero position state) or the left and right sides are aligned with the center of the swing angle positioning switch 2082 (see Figures 11 and 12, corresponding to the first limit state and the second limit state of the swing angle), the system will stop automatically. The system can be stopped by releasing the guide button (the first guide button 1061 or the second guide button 1071) at other positions.

[0065] When the guide button (the first guide button 1061 or the second guide button 1071) is pressed left or right, the rotating motor 201 runs, and the rotating drive gear 2032 drives the rotating driven gear 2031 to rotate. Since the barrel assembly 30 is fixed to the rotating driven gear 2031 by the fixing block 2041, it will rotate with the rotating driven gear 2031, thereby realizing the rotation function of the barrel assembly 30 and the nail magazine assembly (i.e., the matching assembly). Release the guide button (the first guide button 1061 or the second guide button 1071) to stop.

[0066] After the anastomosis component is loaded, before closing, the angle and orientation are adjusted according to the surgical needs through the guide button (the first guide button 1061 or the second guide button 1071). Pressing the center position of the guide button (the first guide button 1061 or the second guide button 1071) starts the firing confirmation function, but this function can only be used normally when it is closed in place. Each time the operator triggers the guide button (the first guide button 1061 or the second guide button 1071) to a direction, the on-off signal is transmitted to the main chip. After the main chip recognizes it, it controls the corresponding logic and cooperates with the execution component to realize the function. When the anastomosis component is closed, the main control chip will lock the swing angle and rotation function, and the swing angle and rotation angle of the anastomosis component can no longer be adjusted. If it needs to be adjusted again, the electric stapler trigger needs to be reset to the initial position.

[0067] In the description of this application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0068] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electric stapler, comprising a stapler assembly and a drive assembly, wherein the drive assembly comprises: Main drive assembly, rotation assembly and swing assembly; The main driving assembly is used to drive the anastomotic assembly to close, anastomose and retract, the rotating assembly is used to drive the anastomotic assembly to rotate 360 ​​degrees, and the swinging assembly is used to drive the anastomotic assembly to swing left and right; The main drive assembly, the rotating assembly and the swing assembly all include a motor and a gear assembly, and the main drive assembly, the rotating assembly and the swing assembly do not affect each other during operation; The electric stapler also includes: a main control chip, a swing angle positioning component and a loading confirmation component; wherein the main control chip cooperates with the swing angle positioning component to confirm whether the swing angle component is in the zero position, and the main control chip cooperates with the loading confirmation component to confirm whether the stapler component is correctly loaded.

2. The electric stapler according to claim 1, wherein: The swing angle positioning assembly includes a swing angle positioning switch and a positioning blocking component, and the swing angle positioning switch detects the positioning blocking component to determine the position of the swing angle assembly; and / or, the loading confirmation assembly includes a loading switch and a loading blocking component, and the loading switch detects the loading blocking component to determine whether the anastomosis assembly is correctly loaded.

3. The electric stapler according to claim 1 or 2, wherein: The electric stapler includes a firing push rod, a firing rod sleeve and a loading slider, one end of the firing push rod is connected to the main driving assembly, and the other end of the firing push rod is connected to the anastomosis assembly when the anastomosis assembly is installed, and the firing push rod passes through the rotating assembly and the swing angle assembly; the loading slider is sleeved on the firing push rod, and its end face abuts against an end face of the firing rod sleeve that is also sleeved on the firing push rod, the loading slider and the firing rod sleeve can both slide along the axis of the firing push rod, and the other end face of the firing rod sleeve abuts against the anastomosis assembly after loading. After the anastomosis assembly is loaded, the firing rod sleeve is pushed to move, thereby pushing the loading slider to move toward the proximal end.

4. The electric stapler according to claim 3, wherein: The main drive assembly includes: a firing generator, a firing gear, a firing driven gear, and a firing rack. The distal end of the firing rack is connected to the proximal end of the firing push rod, and the firing push rod can rotate freely around the axis relative to the firing rack; the firing gear is meshed with the firing driven gear, and the firing driven gear is meshed with the firing rack. When the firing generator rotates forward or reversely according to the main control instruction, the rotational motion is converted into linear motion through the firing gear, the firing driven gear, and the firing rack, thereby driving the anastomosis assembly to perform closing, anastomosis, and retraction functions.

5. The electric stapler according to any one of claims 1 to 4, wherein: The electric stapler includes a barrel assembly, the stapler assembly is loaded on the barrel assembly, the rotating assembly includes a rotating motor, a rotating drive gear, and a rotating driven gear, the rotating assembly is connected to the barrel assembly via a fixed block, wherein the rotating drive gear is meshed with the rotating driven gear.

6. The electric stapler according to claim 5, wherein: The rotation driven gear comprises a gear portion and a cylindrical portion, the gear portion comprises a central circular hole, and one end of the cylindrical portion passes through the central circular hole and is fixed to the gear portion.

7. The electric stapler according to claim 6, wherein: The fixed block is provided with a first clamping platform and a second clamping platform, the cylindrical portion of the rotating driven gear is provided with a cylindrical clamping groove corresponding to the second clamping platform, the barrel assembly is provided with a barrel assembly clamping groove, the fixed block is fixed to the rotating driven gear through the second clamping platform and the cylindrical clamping groove, and the fixed block is fixed to the barrel assembly through the first clamping platform and the barrel assembly clamping groove.

8. The electric stapler according to claim 6, wherein: There are two fixing blocks, which are clamped together by a clamping assembly, and the two fixing blocks are clamped together to surround the outer circumference of the cylindrical portion.

9. The electric stapler according to claim 8, wherein: The clamping assembly includes a convex column arranged on one of the fixing blocks, and a groove arranged on the other fixing block, wherein the groove is arranged corresponding to the convex column.

10. The electric stapler according to claim 3 or 4, wherein: The swing angle assembly includes a swing angle motor, a swing angle screw, a swing angle driving gear and a swing angle driven gear. The swing angle driving gear and the swing angle driven gear are meshed with each other, and the swing angle driven gear is spirally matched with the swing angle screw. The swing angle motor rotates through the swing angle driving gear and the swing angle driven gear to drive the swing angle screw to move forward and backward; the swing angle screw passes through the rotating driven gear and can move forward and backward; the swing angle screw is a hollow structure, and the firing push rod passes through the swing angle screw and can move forward and backward in the swing angle screw.

11. The electric stapler according to any one of claims 1 to 10, wherein: The electric stapler also includes a main circuit board and a sub-circuit board, which are respectively located on both sides of the electric stapler. The control circuit and the first guide button of the electric stapler are arranged on the main circuit board, and the second guide button is arranged on the sub-circuit board, wherein the first guide button and the second guide button are symmetrically arranged and have the same functions.

12. The electric stapler according to claim 11, wherein: The first guide button and the second guide button have trigger functions in five directions respectively, namely, pressing left and right, front and back, and downward, which respectively correspond to the rotation of the anastomosis component, the left and right swing angle of the anastomosis component, and the start-fire confirmation function of the anastomosis component.

13. The electric stapler according to claim 10, wherein: The positioning blocking component is a screw stroke piece, wherein the number of the screw stroke pieces is two and they are arranged side by side on the swing angle screw. A notch is provided in the middle of the two screw stroke pieces, and the width of the notch is not less than the sensing width of the swing angle positioning switch. When the swing angle screw moves forward and backward, the swing angle positioning switch detects the notch, and when it is detected that the notch is located in the middle position of the swing angle positioning switch, information is fed back to the main control chip, and the main control chip sends a signal to prompt that the swing angle assembly is at the zero position.

14. The electric stapler according to claim 3, wherein: The loading confirmation component includes a loading switch and a loading blocking component, and the loading blocking component is detected by the loading switch to determine whether the anastomosis component is correctly loaded; wherein, the loading blocking component is a slider flange arranged on the loading slider, and after the anastomosis component is loaded, the firing rod sleeve pushes the loading slider to move, and the slider flange on the loading slider touches or blocks the loading switch, and the potential of the loading switch changes, and the potential change information is transmitted to the main control chip, and the main control chip sends a signal to indicate that the anastomosis component has been loaded.

15. The electric stapler according to claim 11, wherein: After the anastomosis assembly is loaded and before it is closed, the swing angle and rotation angle of the anastomosis assembly can be adjusted by the first guide button or the second guide button; when the anastomosis assembly is closed, the main control chip will lock the swing angle and rotation functions, and the swing angle and rotation angle of the anastomosis assembly can no longer be adjusted. If adjustment is required again, the electric stapler must be fired and reset to the initial position.

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