An electrically powered articulating anastomosis device having an articulating actuator

Abstract

The application provides an electric bending anastomat with a bending actuator, which comprises a bending motor, a bending gear, a bending screw rod, a bending nut, a bending connecting rod and a closure driving part. The bending motor is fixedly connected with the bending gear, the bending gear is gear-connected with the bending screw rod, the bending screw rod is screw-nut-connected with the bending nut, the bending nut is movably connected with the bending connecting rod, the closure driving part is movably connected with the bending nut, and the bending nut moves forward and backward relative to the closure driving part. The application adds a limiting device for the bending transmission part, so that the bending transmission part remains in the original position when the bending transmission assembly performs the rotating action of the instrument jaw, and the instrument does not drive the bending driving assembly to make the jaw perform the bending action at the same time when the instrument performs the rotating action of the jaw.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and in particular to an electric bending stapler with a bending actuator. Background Technology

[0002] Most existing electric staplers use a manually applied lever arm to achieve fixed jaw deflection. This approach may require the surgeon to provide significant power output and can only achieve a fixed angle of jaw bending.

[0003] Furthermore, the rotation and bending movements of the jaws in existing electric staplers may interfere with each other, causing the instrument to deviate from the surgeon's intended action. For example, the surgeon may intend to rotate the instrument's tip, but simultaneously, the bending movement of the tip is triggered. If this occurs within the patient, the instrument tip may accidentally touch other parts of the patient's body, causing tissue and organ damage, and in severe cases, potentially endangering the patient's life.

[0004] Therefore, there is a need to propose a new type of electric bending stapler with a bending actuator. Summary of the Invention

[0005] This invention provides an electric bending anastomosis device with a bending actuator, which at least solves the technical problem in the prior art that the bending action at the front end of the device is triggered simultaneously while the device is performing a rotational action.

[0006] This invention provides an electric bending anastomosis device with a bending actuator. The electric bending anastomosis device includes a bending motor, a bending gear, a bending screw, a bending nut, a bending connecting rod, and a closing drive. The bending motor is fixedly connected to the bending gear, the bending gear is geared to the bending screw, the bending screw and the bending nut are screw-nut coupled, the bending nut is movably connected to the bending connecting rod, and the closing drive is movably connected to the bending nut. The bending nut moves back and forth relative to the closing drive.

[0007] Optionally, the aforementioned bent nut includes a front end groove, and the aforementioned bent connecting rod includes a rear end protrusion. The rear end protrusion of the aforementioned bent connecting rod extends into the front end groove of the aforementioned bent nut. The movable connection between the aforementioned bent nut and the aforementioned bent connecting rod refers to the sliding engagement between the rear end protrusion of the aforementioned bent connecting rod and the front end groove of the aforementioned bent nut.

[0008] Optionally, the aforementioned closing drive includes a closing drive anti-rotation component, and the aforementioned bending nut includes a bending nut limiting groove. The aforementioned bending nut limiting groove moves back and forth relative to the aforementioned closing drive anti-rotation component to prevent the aforementioned bending nut from rotating under force.

[0009] Optionally, the aforementioned closing drive component includes a closing drive component protrusion, and the aforementioned bending nut includes a bending nut limiting groove. The aforementioned bending nut limiting groove engages with the aforementioned closing drive component protrusion, and the aforementioned bending nut limiting groove moves back and forth along the aforementioned closing drive component protrusion.

[0010] Optionally, the aforementioned closing drive member protrusion has a square structure, so that the aforementioned closing drive member can prevent the rotation of the aforementioned bending nut, but does not prevent the forward and backward movement of the aforementioned bending nut.

[0011] Optionally, the electric bending stapler further includes a jaw assembly, which is engaged with the bending connecting rod. The bending screw has a threaded structure, and when the bending motor stops, the threaded structure of the bending screw fixes the jaw assembly at any angle within the bending range of the electric bending stapler.

[0012] Optionally, the bending link includes a front tooth profile, and the jaw assembly includes a rear tooth profile. The front tooth profile of the bending link meshes with the rear tooth profile of the jaw assembly. The forward and backward movement of the bending nut is transmitted to the jaw assembly through the bending link, causing the jaw assembly to bend left and right.

[0013] Optionally, the aforementioned bending nut includes a circular protrusion, and the aforementioned bending screw includes a threaded groove. The circular protrusion of the bending nut can slide along the threaded groove of the aforementioned bending screw, so that the rotational action output by the aforementioned bending motor is converted into the forward and backward movement of the aforementioned bending nut.

[0014] Optionally, the electric bending stapler also includes a handle assembly, and the closing drive is fixedly connected to the handle assembly.

[0015] Optionally, when the electric bending stapler performs the rotation action, the bending angle of the electric bending stapler is not affected.

[0016] To address the aforementioned shortcomings in the prior art, this invention provides an electrically driven bending stapler with a bending actuator. In order to reduce the surgical burden on doctors and meet the needs of more jaw bending angles, this invention uses a motor to drive the bending transmission component to achieve electric bending of the jaws. During the electric bending process, the bending angle can be any angle between the maximum bending angle on the left and the maximum bending angle on the right, according to the doctor's needs, thus improving upon the previous fixed-angle jaw bending.

[0017] In view of the problem of fixed-gear bending in the existing manual bending, the present invention adopts a motor-driven bending component to achieve a stepless bending angle. At the same time, in view of the possible linkage between the rotation control of the instrument jaw and the bending control of the instrument jaw, the present invention adds a limiting device for the bending transmission parts, so that when the instrument performs the rotation action of the jaw, the bending transmission parts remain in their original positions, avoiding the situation that when the instrument performs the rotation action of the jaw, it drives the bending drive component and makes the jaw perform the bending action at the same time. This ensures the independence of the electric bending and rotation actions at the front end of the instrument, avoids the possibility of the instrument wrongly performing electric bending, and reduces the risk of medical accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the drawings, several embodiments of the present invention are shown in an exemplary but non-limiting manner, where:

[0019] Figure 1 FIG. is a schematic structural diagram of an optional electric stapler provided by an embodiment of the present invention;

[0020] Figure 2 FIG. is a schematic diagram of a bender actuator for optional electric bending anastomosis provided by an embodiment of the present invention;

[0021] Figure 3 FIG. is a schematic structural diagram of the sliding connection between a bending nut and a bending link in an optional bending drive member provided by an embodiment of the present invention;

[0022] Figure 4 FIG. is a schematic structural diagram of a bending nut and a bending screw rod in an optional bending drive member provided by an embodiment of the present invention;

[0023] Figure 5 FIG. is a schematic structural diagram of a limit structure for restricting the rotation of a bending nut by a closing drive member provided by an embodiment of the present invention;

[0024] Figure 6 FIG. is a schematic structural diagram of a manual rotation device of an optional electric stapler provided by an embodiment of the present invention;

[0025] Figure 7 FIG. is a schematic internal structure diagram of a manual rotation device of an optional electric stapler provided by an embodiment of the present invention;

[0026] Figure 8 FIG. is a schematic connection structure diagram of a manual rotation drive component of an optional electric stapler provided by an embodiment of the present invention;

[0027] Figure 9A schematic diagram of the connection structure between the rotating head and the rotating drive ring in an optional electric stapler provided in an embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the rotating drive ring and barrel assembly in an optional electric stapler provided in an embodiment of the present invention.

[0029] Figure label:

[0030] 1-Handle assembly, 2-Rotating head, 201-Rotating head boss, 3-Barrel assembly, 301-Upper barrel inner core, 3011-Upper barrel inner core groove, 302-Lower barrel inner core, 3021-Upper barrel inner core groove, 4-Jaw assembly, 401-Jaw assembly rear end teeth, 5-Bending motor, 6-Bending motor gear, 7-Bending screw, 701-Bending screw rear end teeth, 702-Bending screw thread groove, 8-Bending nut, 801-Bending... Nut front end groove, 802-bending nut limiting groove, 803-bending nut circular protrusion, 9-bending connecting rod, 901-bending connecting rod rear end protrusion, 902-bending connecting rod front end tooth profile, 10-rotating drive ring, 1001-rotating drive ring first groove surface, 1002-rotating drive ring second groove surface, 1003-rotating drive ring first protrusion, 1004-rotating drive ring second protrusion, 11-closing drive component, 1101-closing drive component protrusion. Detailed Implementation

[0031] The principles and spirit of the invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are provided merely to enable those skilled in the art to better understand and implement the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0032] This implementation example Figures 1 to 10 As shown.

[0033] like Figures 1 to 10As shown, the present invention provides an electric bending stapler with a bending actuator. The electric bending stapler includes a bending motor 5, a bending gear 6, a bending screw 7, a bending nut 8, a bending connecting rod 9, and a closing drive member 11. The bending motor 5 is fixedly connected to the bending gear 6, the bending gear 6 is gear-fitted to the bending screw 7, the bending screw 7 is screw-nut-fitted to the bending nut 8, the bending nut 8 is movably connected to the bending connecting rod 9, and the closing drive member 11 is movably connected to the bending nut 8. The bending nut 8 moves back and forth relative to the closing drive member 11. This invention addresses the issue of coordinated rotation and bending movements of the instrument jaws in electric staplers. By modifying the features of existing bending transmission components, it alters the previously fixed connection between the bending linkage and the bending nut. Furthermore, it adds a feature to the drive component that closes the instrument jaws, ensuring that the bending nut assembly remains stationary during instrument rotation due to the limiting feature of the closing drive component. This allows the bending linkage at the instrument's front end to only rotate the instrument without moving back and forth, thus preventing bending of the instrument jaws.

[0034] Furthermore, the aforementioned bent nut 8 includes a front end groove 801, and the aforementioned bent connecting rod 9 includes a rear end protrusion 901. The rear end protrusion 901 extends into the front end groove 801 of the bent nut. The movable connection between the bent nut 8 and the aforementioned bent connecting rod 9 refers to the sliding engagement between the rear end protrusion 901 of the bent connecting rod and the front end groove 801 of the bent nut. Figure 4 As shown, the bending nut 8 and the bending connecting rod 9 are connected by a groove and a protrusion. Specifically, the bending nut has a front groove 801, and the rear protrusion 901 of the bending connecting rod 9 and the front groove 801 of the bending nut are in a sliding fit between the protrusion and the groove. The rear protrusion 901 of the bending connecting rod extends into the front groove 801 of the bending nut. Due to the constraint effect of the jaw assembly 4 on the bending connecting rod 9, the rear protrusion 901 of the bending connecting rod cannot disengage from the front groove 801 of the bending nut during electric bending. The end face of the groove 801 of the bending nut allows the bending connecting rod to move back and forth.

[0035] Furthermore, the aforementioned closing drive member 11 includes a closing drive member anti-rotation component, and the aforementioned bending nut 8 includes a bending nut limiting groove 802. The bending nut limiting groove 802 moves back and forth relative to the aforementioned closing drive member anti-rotation component, preventing the aforementioned bending nut 8 from rotating under force. The engagement state of the closing drive member and the bending nut is as follows: the closing drive member does not prevent the bending nut from moving back and forth, but prevents the bending nut from rotating under force through the anti-rotation protrusion or anti-rotation groove of the closing drive member. This invention only uses the anti-rotation protrusion of the closing drive member to achieve the rotational locking of the bending nut; corresponding anti-rotation grooves or other features that allow the bending nut to move back and forth while preventing its rotation are still within the protection scope of this invention.

[0036] Furthermore, such as Figure 5 As shown, the aforementioned closing drive member 11 includes a closing drive member protrusion 1101, and the aforementioned bending nut 8 includes a bending nut limiting groove 802. The aforementioned closing drive member protrusion 1101 extends into the aforementioned bending nut limiting groove 802, and the aforementioned closing drive member protrusion 1101 engages with the aforementioned bending nut limiting groove 802. The aforementioned bending nut limiting groove 802 moves back and forth along the aforementioned closing drive member protrusion 1101.

[0037] Furthermore, the aforementioned closing drive member protrusion 1101 has a square structure, which allows the closing drive member 11 to prevent the rotation of the bending nut 8 without preventing the forward and backward movement of the bending nut 8. This is one of the preferred core inventive points. By changing the connection state between the bending nut and the bending linkage, the forward and backward movement of the bending nut can drive the forward and backward movement of the bending linkage. When the bending linkage is passively rotated due to the rotation of the instrument, the sliding groove connection of the bending nut and the limiting effect of the closing drive member on the bending nut prevent the bending linkage from transmitting the rotational action to the bending nut. Therefore, when the instrument performs the rotational action, the bending nut remains in its original position, and the bending angle of the instrument jaws is not affected.

[0038] Furthermore, the aforementioned electric bending stapler also includes a jaw assembly 4, which is engaged with the bending connecting rod 9. The bending screw 7 has a threaded structure. When the bending motor 5 stops, the threaded structure of the bending screw 7 fixes the jaw assembly 4 at any angle within the bending range of the electric bending stapler. The second key point of this invention is the application of the self-locking mechanism of the bending nut and bending screw, which enables the instrument jaws to be fixed at any angle within the bending range.

[0039] Furthermore, the aforementioned bending link 9 includes a front tooth profile 902, and the aforementioned jaw assembly 4 includes a rear tooth profile 401. The front tooth profile 902 of the aforementioned bending link meshes with the rear tooth profile 401 of the aforementioned jaw assembly. The forward and backward movement of the aforementioned bending nut 8 is transmitted to the aforementioned jaw assembly 4 through the aforementioned bending link 9, causing the aforementioned jaw assembly 4 to bend left and right.

[0040] Furthermore, the aforementioned bending nut 8 includes a circular protrusion 803, and the aforementioned bending screw 7 includes a threaded groove 702. The circular protrusion 803 of the bending nut can slide along the threaded groove 702 of the bending screw, so that the rotational action output by the aforementioned bending motor 5 is converted into the forward and backward movement of the aforementioned bending nut 8.

[0041] Furthermore, the aforementioned electric bending stapler also includes a handle assembly 1, and the aforementioned closing drive 11 is fixedly connected to the aforementioned handle assembly 1.

[0042] Furthermore, when the aforementioned electric bending stapler performs its rotational action, the bending angle of the electric bending stapler is not affected.

[0043] The electric bending connection includes a bending motor 5, a bending gear 6, a bending screw 7, a bending nut 8, a bending connecting rod 9, and a jaw assembly 4. The instrument rotation connection includes a rotating head 2, a rotating drive ring 10, a barrel assembly 3, and a jaw assembly 4.

[0044] The schematic diagram of the electric bending actuator of the electric anastomosis device provided in this technical solution is shown below. Figure 2 As shown, the rotational motion of the bending motor 5 is transmitted to the bending screw 7 through the bending gear 6, wherein the rear tooth profile 701 of the bending screw 7 is engaged with the bending gear 6. Simultaneously, the front end of the bending screw 7 is engaged with the bending nut 8 in a screw-nut configuration. Figure 3 As shown, the circular protrusion 803 of the bending nut can slide along the bending screw thread groove 702 of the bending screw. Through this threaded engagement, the rotational motion output by the bending motor 5 is converted into the back-and-forth movement of the bending nut 8. At the same time, due to the self-locking nature of the bending screw 7 thread, when the bending motor 5 stops, the instrument jaws can be fixed at any angle within the bending range by virtue of the self-locking advantage of the thread.

[0045] By bending the nut 8 using this connection method, the bending connecting rod 9 can be driven to move back and forth. Simultaneously... Figure 2As shown, the front tooth 902 of the bending link 9 meshes with the rear tooth 401 of the jaw assembly 4, thereby transmitting the forward and backward movement of the bending nut 8 to the jaw assembly 4 via the bending link 9. Due to the meshing motion of the 902 and 401 teeth, the jaw assembly 4 is driven to bend left and right. Thus, the rotational motion of the bending motor 5 ultimately enables the left and right bending of the electric stapler jaw assembly 4.

[0046] Rotary drive components of electric staplers, such as Figure 6 As shown, the operator rotates the rotating head 2 to drive the barrel assembly 3 and the jaw assembly 4 to rotate together, thereby achieving the rotational action of the instrument jaws. Figure 7 , Figure 8 , Figure 9 as well as Figure 10 As shown, the rotating head 2 includes a rotating head protrusion 201, and the rotating drive ring 10 includes a first groove surface 1001 and a second groove surface 1002. The first groove surface 1001 and the second groove surface 1002 form a groove for the rotating drive ring. The rotating drive ring also includes a first protrusion 1003 and a second protrusion 1004. The barrel assembly 3 includes an upper barrel inner core 301 and a lower barrel inner core 302, as shown in the figure. Figure 10 As shown, the upper barrel inner core 301 includes an upper barrel inner core groove 3011, and the lower barrel inner core 302 includes a lower barrel inner core groove 3021. Additionally, the bending connecting rod 9 is located between the upper barrel inner core 301 and the lower barrel inner core 302, and is constrained by the inner diameter of the barrel assembly 3.

[0047] The rotating head 2 drives the first groove surface 1001 and the second groove surface 1002 of the rotating drive ring via the rotating head protrusion 201, so that the rotation of the rotating head 2 can drive the rotation of the rotating drive ring 10. Furthermore, the rotating drive ring 10, through the engagement of the first protrusion 1003 with the groove 3011 of the upper barrel inner core, and through the engagement of the second protrusion 1004 with the groove 3021 of the lower barrel inner core, can transmit the rotational motion of the rotating head 2 to the upper barrel inner core 301 and the lower barrel inner core 302. Simultaneously, the barrel assembly 3 transmits the rotational motion to the jaw assembly 4, thereby realizing the rotational motion of the front end of the electric stapler.

[0048] In existing electric stapler bending schemes, since the bending linkage 9 is inside the instrument's barrel assembly 3, when the instrument performs a rotational action, the upper barrel inner core 301 and lower barrel inner core 302 of the barrel assembly 3 will drive the bending linkage 9 to rotate together. Simultaneously, in existing bending actuator schemes, the bending linkage 9 and the bending nut 8 are fixedly connected. When the bending linkage 9 and the bending nut 8 are fixedly connected, the bending linkage 9 will inevitably drive the bending nut 8 to rotate together. Due to the threaded connection between the bending nut 8 and the bending screw 7, the bending nut 8 may move back and forth. Therefore, the rotational action of the instrument's front end may cause the bending nut 8 to move back and forth, which is a problem existing in the prior art. In the technical solution provided by this invention, the bending nut 8 also includes a bending nut limiting groove 802, and the closing drive member 11 includes a protrusion 1101. The protrusion 1101 of the closing drive member can extend into the bending nut limiting groove 802. The bending nut limiting groove 802 and the protrusion of the closing drive member... When the device engages with the 1101 locking mechanism, the bending nut limiting groove 802 moves back and forth along the protrusion 1101 of the closed drive member. However, due to the square structure of the protrusion 1101 of the closed drive member, the bending nut limiting groove 802 can only move back and forth and cannot rotate. This restricts the rotational freedom of the bending nut 8. Therefore, when the device performs a rotational action, the rear end protrusion 901 of the bending linkage can rotate along the front end slide groove 801 of the bending nut. At the same time, because the rotational freedom of the bending nut 8 is restricted by the closed drive member 11, the rotational motion of the bending linkage 9 cannot be transmitted to the bending nut 8. This ensures that the rotational motion of the electric stapler does not cause erroneous motion of the bending actuator of the electric stapler, thus ensuring the independence of the rotational and bending actions of the electric stapler.

[0049] The final implementation plan and path are as follows:

[0050] The bending motor and bending gear are fixedly connected. The rear end of the bending screw has a toothed section that meshes with the teeth of the bending gear. The front end of the bending screw meshes with a bending nut, which contains a circular protrusion that slides along the spiral groove of the bending screw, thus converting the rotational motion output by the bending motor into the forward and backward movement of the bending nut. Simultaneously, the bending nut and the bending connecting rod are connected by a groove and a protrusion, allowing the bending nut to move forward and backward on the connecting rod. Thus, the rotational motion output by the bending motor is transmitted to the joint head via the forward and backward movement of the bending connecting rod. The joint head contains a protrusion or groove away from the center, and the forward and backward movement of the bending connecting rod ultimately enables the left and right bending of the jaws at the front of the instrument.

[0051] The current reason for the linkage between the bending and rotating actions of the instrument is that the bending linkage is located inside the instrument's barrel. When the instrument rotates, the barrel's inner core causes the bending linkage to rotate as well. In the original design where the bending linkage and bending nut were fixedly connected, the bending linkage rotated along with the instrument's front end, causing the bending nut to rotate as well. Due to the threaded connection of the bending nut's bending screw, the nut might move back and forth, ultimately causing the instrument to bend due to the rotation of the instrument's front end.

[0052] The method of using a bending nut and bending screw to transmit bending electric shock output is due to the self-locking property of the threads. When the bending motor stops, the instrument jaws can be fixed at any angle within the bending range by virtue of the self-locking property of the threads.

[0053] The technical solution adopted in this invention lies in the special connection between the bending connecting rod and the bending nut, and the special connection between the bending nut and the closing drive component. This allows the closing drive component to prevent the rotation of the bending nut, but not to prevent its forward and backward movement. The bending nut can drive the bending connecting rod to move forward and backward, while the rotational motion of the bending connecting rod cannot be transmitted to the bending nut. Therefore, when the instrument performs a rotational action, the bending connecting rod can rotate around the bending nut, while the bending nut, under the stop action of the closing drive component, maintains its original position, thus ensuring the independence of the instrument's rotational and bending actions. This avoids the possibility of the instrument erroneously performing a bending action and reduces the risk of medical accidents.

[0054] It should be noted that although several units / modules or sub-units / modules of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0055] While the spirit and principles of the invention have been described with reference to several specific embodiments, it should be understood that the invention is not limited to the disclosed specific embodiments, and the division of aspects does not imply that features in these aspects cannot be combined for benefit; such division is merely for ease of description. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An electric bending joint with a bending actuator, characterized in that, The electric bending anastomosis device includes a bending motor (5), a bending gear (6), a bending screw (7), a bending nut (8), a bending connecting rod (9), and a closing drive (11). The bending motor (5) is fixedly connected to the bending gear (6), the bending gear (6) is gear-fitted to the bending screw (7), the bending screw (7) is screw-nut fitted to the bending nut (8), the bending nut (8) is movably connected to the bending connecting rod (9), and the closing drive (11) is movably connected to the bending nut (8). The bending nut (8) moves back and forth relative to the closing drive (11). The bent nut (8) includes a front end groove (801), and the bent connecting rod (9) includes a rear end protrusion (901). The rear end protrusion (901) of the bent connecting rod extends into the front end groove (801) of the bent nut. The movable connection between the bent nut (8) and the bent connecting rod (9) refers to the sliding fit between the rear end protrusion (901) of the bent connecting rod and the front end groove (801) of the bent nut. The closing drive (11) includes a closing drive anti-rotation component, and the bending nut (8) includes a bending nut limiting groove (802). The bending nut limiting groove (802) moves back and forth relative to the closing drive anti-rotation component to prevent the bending nut (8) from rotating under force. The rotating connection of the instrument includes a rotating head (2), a rotating drive ring (10), a barrel assembly (3), and a jaw assembly (4); When the device performs a rotational action, the rear end protrusion (901) of the bending link can rotate along the front end groove (801) of the bending nut. Meanwhile, since the rotational freedom of the bending nut (8) is restricted by the closing drive (11), the rotational action and bending action of the electric stapler are guaranteed to be independent of each other.

2. The electric bending anastomosis device according to claim 1, characterized in that, The closing drive (11) includes a closing drive protrusion (1101), and the bending nut (8) includes a bending nut limiting groove (802). The bending nut limiting groove (802) engages with the closing drive protrusion (1101), and the bending nut limiting groove (802) moves back and forth along the closing drive protrusion (1101).

3. The electrically operated bending anastomosis device according to claim 2, characterized in that, The closing drive protrusion (1101) has a square structure, which allows the closing drive (11) to prevent the rotation of the bending nut (8) without preventing the bending nut (8) from moving back and forth.

4. The electrically operated bending anastomosis device according to claim 1, characterized in that, The electric bending stapler also includes a jaw assembly (4), which is engaged with the bending connecting rod (9). The bending screw (7) has a threaded structure. When the bending motor (5) stops, the threaded structure of the bending screw (7) fixes the jaw assembly (4) at any angle within the bending range of the electric bending stapler.

5. The electrically operated bending anastomosis device according to claim 4, characterized in that, The bending link (9) includes a front tooth profile (902), and the jaw assembly (4) includes a rear tooth profile (401). The front tooth profile (902) of the bending link meshes with the rear tooth profile (401) of the jaw assembly. The forward and backward movement of the bending nut (8) is transmitted to the jaw assembly (4) through the bending link (9), causing the jaw assembly (4) to bend left and right.

6. The electrically operated bending anastomosis device according to claim 1, characterized in that, The bending nut (8) includes a circular protrusion (803), and the bending screw (7) includes a threaded groove (702). The circular protrusion (803) can slide along the threaded groove (702) of the bending screw, so that the rotational action output by the bending motor (5) is converted into the forward and backward movement of the bending nut (8).

7. The electrically operated bending anastomosis device according to claim 1, characterized in that, The electric bending anastomosis device also includes a handle assembly (1), and the closing drive (11) is fixedly connected to the handle assembly (1).

8. The electrically operated bending anastomosis device according to any one of claims 1 to 7, characterized in that, When the electric bending stapler performs a rotational action, the bending angle of the electric bending stapler is not affected.

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