An electric stapler

Abstract

The present invention discloses an electric suturing device, comprising: a driving motor, an eccentric wheel component, a frame, and a buffer component. The driving motor is connected to the eccentric wheel component, and the eccentric wheel component is connected to the buffer component. The driving motor drives the eccentric wheel component to rotate, driving the buffer component to perform reciprocating push-pull motion. The buffer component comprises: a buffer spring, a buffer rod, and a buffer shaft sleeve. The buffer component can achieve buffering during the pulling and pushing processes, thereby reducing the jitter of the front-end suture needle actuator, improving the repeated positioning accuracy of the front-end suture needle actuator, and ensuring the stable operation of the mechanical structure, thereby improving the safety of the operation.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to an electric suturing device. Background Art

[0002] In recent years, minimally invasive surgery, which has the advantages of less trauma, faster recovery, less pain and higher cure rate, has developed rapidly. As a representative of minimally invasive surgery, laparoscopy has been widely used in the surgical field, involving many diseases and operations, and is popular among patients.

[0003] With the rapid advancement of industrial manufacturing technology, the integration of related disciplines has laid a solid foundation for the development of new technologies and methods. Coupled with doctors' increasingly skilled operations, many open surgeries in the past have been replaced by endoscopic surgeries, greatly increasing the number of surgical options. Moreover, with the continuous advancement of science and technology and the improvement and innovation of surgical instruments, the scope for laparoscopy will become increasingly larger, which is an inevitable trend in the development of future surgical methods.

[0004] The traditional method of laparoscopic surgery is to insert a tube-like working channel called a "trocar" through which all subsequent operations are performed. Specially designed and extended surgical instruments are then used under monitoring to complete the same steps as open surgery and achieve the same surgical results.

[0005] Due to the limited space in the abdominal or thoracic cavity, minimally invasive surgical instruments must be smaller and longer to achieve precise operations.

[0006] Suturing is undoubtedly the most difficult operation in minimally invasive abdominal surgery.

[0007] Many surgeons find it extremely difficult to coordinate the use of both hands to operate the suture needle and the needle-holding instrument to perform continuous suturing in a confined space.

[0008] In addition, the exposure of suture needles can easily lead to accidents, puncturing other organs of the patient or injuring surgeons or nurses.

[0009] With the development of technology, laparoscopic staplers play an increasingly critical role in surgery.

[0010] When operating a traditional stapler for surgery, 5. operate the stapler to fire the trigger in one cycle, that is, fully squeeze the trigger and fully open and reset it to allow the needle to penetrate the suture tissue, and fire the trigger again to allow the suture needle to completely penetrate the tissue and suture the needle 6.

[0011] During this process, it is necessary to pull the trigger at least twice, because each time the trigger is fired, the needle must be completely fixed in position, and the suturing can be performed smoothly only by pulling the trigger again. Otherwise, the trigger needs to be pulled repeatedly to put the needle in place. Due to the characteristics of the abdominal instruments, which are thin and long, each time the trigger is pulled, the front end of the needle actuator in the abdominal cavity will vibrate. After the needle enters the tissue, if it shakes again, the needle will pull the tissue, causing a surgical risk of 7. Gripping the trigger multiple times for suturing is time-consuming and laborious, and can easily cause hand fatigue in the doctor. Summary of the Invention

[0012] The present invention aims to solve the technical problem in the prior art that the front end needle assembly of the suturing device is prone to shaking.

[0013] To solve the above technical problem 8, the present invention provides the following technical solutions:

[0014] An electric suturing device includes: a driving motor, an eccentric wheel component, and a frame; the electric suturing device also includes a buffer component, the driving motor is connected to the eccentric wheel component, and the eccentric wheel component is connected to the buffer component, and the driving motor drives the eccentric wheel component to rotate, driving the buffer component to perform reciprocating push-pull motion; wherein the buffer component includes: a buffer spring, a buffer rod, and a buffer shaft sleeve; the buffer component can achieve buffering during the pulling and pushing processes.

[0015] Furthermore, there are two buffer springs, namely: a first buffer spring and a ninth buffer spring; there are two buffer rods, namely: a first buffer rod and a second buffer rod; wherein, the first buffer spring is sleeved on the first buffer rod, and the second buffer spring is sleeved on the second buffer rod; a groove is provided on one end face of the first buffer rod, and one end of the second buffer rod extends into the groove and can slide in the groove.

[0016] Furthermore, the buffer sleeve is divided into a left side cavity and a right side cavity of the sleeve by a sleeve step located in the middle. The first buffer spring is located in the right side cavity of the sleeve, and the second buffer spring is located in the left side cavity of the sleeve. The two ends of the buffer sleeve are respectively connected to the right end cover and the left end cover, and the first buffer spring and the second buffer spring are respectively compressed in the right side cavity and the left side cavity of the sleeve through the right end cover and the left end cover.

[0017] Furthermore, a buffer rod base is provided at the end of the first buffer rod, and the right end cover compresses the first buffer spring to press the buffer rod base against the shaft sleeve step; a step hole is provided at the center of the shaft sleeve step, 10. One end of the punch rod passes through the step hole and extends into the groove of the first buffer rod; the second buffer rod is provided with a second buffer rod step, and the left end cover compresses the second buffer spring against the shaft sleeve step through the second buffer rod step.

[0018] Furthermore, the electric suture device is further provided with a push-pull ring, the driving motor is connected to the push-pull ring, and the push-pull ring is connected to the first buffer rod.

[0019] Furthermore, the first buffer rod is provided with a threaded shaft or a threaded hole, and correspondingly, the push-pull ring is provided with a threaded hole or a threaded shaft, and the first buffer rod is connected to the push-pull ring through the threaded shaft and the threaded hole; or, the first buffer rod is provided with a T-shaped hole or a T-shaped shaft, and correspondingly, the push-pull ring is provided with a T-shaped shaft or a T-shaped hole, and the first buffer rod is connected to the push-pull ring through the T-shaped hole and the T-shaped shaft.

[0020] Furthermore, the driving motor is provided with a motor output shaft, the eccentric wheel component is provided with a motor connecting hole, and the motor output shaft is installed in the motor connecting hole; the push-pull ring is provided with a waist-shaped hole, the eccentric wheel component is provided with an eccentric shaft, and the waist-shaped hole is sleeved on the eccentric shaft.

[0021] Furthermore, the electric suturing device also includes an electronic control component, which includes: a first microswitch, a second microswitch, a trigger button, a power supply, and a main microcontroller; the first microswitch and the second microswitch are respectively arranged on the frame; the eccentric wheel component is provided with a first makeshift groove and a second makeshift groove; different states of the microswitch correspond to different angular positions of the eccentric wheel component, and the main microcontroller determines the angular position of the eccentric wheel component by reading the states of the first microswitch and the second microswitch.

[0022] Furthermore, the electric suturing device also includes a power supply voltage detection module, which includes: a voltage detection IC and an alarm; after the power supply supplies power to the electric suturing device, the main microcontroller controls the electric suturing device to enter an initial state. In the initial state, the voltage detection IC detects the power supply voltage of the motor drive IC in real time. If the voltage meets the expected value, pressing the trigger button drives the motor to rotate. If the voltage does not meet the expected value, the alarm is activated and the main microcontroller automatically suspends subsequent drive operations.

[0023] Furthermore, the trigger button determines the pressing time through a preset program, and different pressing times execute different programs, thereby controlling the drive motor to rotate to different positions.

[0024] After adopting such a design, the present invention has at least the following advantages: (1) The electric suturing device of the present invention has a buffering function during the pulling and pushing process by providing a buffering component, thereby reducing the vibration of the front-end suture needle actuator, improving the repeatability positioning accuracy of the front-end suture needle actuator, and ensuring the stable operation of the mechanical structure, thereby improving the safety of the operation.

[0025] (2) The present invention is driven by a motor and uses a trigger button to control the position of the motor, which is easy to operate and can reduce the doctor's hand fatigue.

[0026] (3) The electric suture device of the present invention is provided with a power supply voltage detection module and a current detection module to detect motor failures, thereby ensuring the safety of surgical operations.

[0027] (4) The present invention has a simple structure, good effect, low cost and easy process implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Figure 1 Schematic diagram of the driving structure of the electric suture device of the present invention; Figure 2 2. It is a schematic diagram of the exploded driving structure of the electric stapler according to one embodiment of the present invention; Figure 3 is a cross-sectional view of a buffer component according to an embodiment of the present invention; Figure 4 is a schematic cross-sectional view of a buffer component according to an embodiment of the present invention; Figure 5 is an exploded schematic diagram of a buffer component according to another embodiment of the present invention; Figure 6 is a cross-sectional view of a buffer sleeve according to an embodiment of the present invention; Figure 7 1 is a schematic diagram of the structure of a driving motor according to an embodiment of the present invention; Figure 8 This is a schematic structural diagram of an eccentric wheel component according to an embodiment of the present invention; Figure 9 A schematic diagram of the skeleton structure of an embodiment of the present invention; Figure 10 This is a diagram showing the initial position of the driving device according to one embodiment of the present invention; Figure 11 A second position view of the driving device according to an embodiment of the present invention; Figure 12 A third position view of the driving device according to an embodiment of the present invention; Figure 13 A control logic diagram of an embodiment of the present invention; Figure 14 A trigger button logic diagram of an embodiment of the present invention;

[0029] Figure markings, buffer rod component-1000, push-pull ring-1100, waist-shaped hole-1101, threaded hole-1102, T-shaped hole-1102B, nut-1200, external threaded shaft-1201, first buffer spring-1300, first buffer rod-1400, first buffer rod threaded shaft-1401, first buffer rod T-shaped shaft-1401B, first buffer rod base-1402, buffer sleeve-1500, sleeve threaded hole A-1501, sleeve step hole-1502, sleeve threaded hole B -1503, right side cavity of the sleeve -1504, left side cavity of the sleeve -1505, second buffer spring -1600, second buffer rod -1700, second buffer rod step -1701, eccentric wheel component -2000, motor connecting hole -2001, eccentric shaft -2002, first make way slot -2003, second make way slot -2004, skeleton -3000, motor shaft output hole -3001, buffer rod component running hole -3002, motor fixing hole -3003, skeleton Round hole 3004, micro switch mounting hole A 3005, micro switch mounting hole B 3006, drive motor 4000, motor output shaft 4101, fixed shaft 4102, first micro switch 5001, second micro switch 5002, trigger button 5003, power supply 5004, main microcontroller 5005, voltage detection IC 5006, indicator 5007, motor drive IC 5008, current detection IC 5009. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0032] In this document, “upper”, “lower”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0033] For each of the following components, the end closer to the operator is defined as the proximal end, and the end farther from the operator is defined as the distal end.

[0034] The expressions of proximal end and distal end are only used to make the description simple and clear, and should not be understood as any limitation to the present invention.

[0035] See attached Figure 1-3An electric suturing device includes: a driving motor 4000, an eccentric wheel component 2000, a buffer component 1000 and a frame 3000; the driving motor 4000 is connected to the eccentric wheel component 2000, and the eccentric wheel component 2000 is connected to the buffer component 1000. The driving motor 4000 drives the eccentric wheel component 2000 to rotate and drives the buffer component to perform reciprocating push-pull motion; the buffer component includes: a buffer spring, a buffer rod, and a buffer sleeve, and the buffer component 1000 is used to achieve buffering during the pulling and pushing process.

[0036] Specifically, the buffer component 1000 includes a first buffer spring 1300, a first buffer rod 1400, a second buffer spring 1600, and a second buffer rod 1700; wherein, the first buffer spring 1300 is sleeved on the first buffer rod 1400, and the second buffer spring 1600 is sleeved on the second buffer rod 1700; a groove is provided on one end face of the first buffer rod 1700, and one end of the second buffer rod 1700 extends into the groove and can slide in the groove.

[0037] See attached Figure 3-6 The buffer component also includes a buffer sleeve 1500, which is divided into a left sleeve cavity 1503 and a right sleeve cavity 1504 through a sleeve step in the middle. The first buffer spring 1300 is located in the right sleeve cavity 1504, and the second buffer spring 1600 is located in the left sleeve cavity. The left and right ends of the buffer sleeve compress the first buffer spring 1300 and the second buffer spring 1600 in the right sleeve cavity 1504 and the left sleeve cavity 1503 respectively through the right end cover and the left end cover.

[0038] Preferably, the right end cover and the left end cover are respectively the right nut and the left nut, the right nut and the left nut are respectively provided with external threads, the inner side walls of the two ends of the buffer sleeve are respectively provided with internal threads, and the buffer sleeve 1500 is connected to the two nut shafts through the internal threads and the 1201 external threads provided on the nuts.

[0039] A buffer rod base 1402 is provided at the end of the first buffer rod 1400, and the right nut compresses the first buffer spring 1300 to press the buffer rod base against the shaft sleeve step; a step hole 1502 is provided at the center of the shaft sleeve step, and one end of the second buffer rod 1700 passes through the step hole 1502 and extends into the groove of the first buffer rod 1300, and the second buffer rod 1700 is provided with a second buffer rod step 1701, and the left nut compresses the second buffer spring 1600 against the shaft sleeve step through the second buffer rod step 1701.

[0040] Specifically, the first buffer spring 1300 is sleeved on the first buffer rod 1400, the first buffer rod 1400 passes through the right nut, and then is installed into the right side cavity 1504 of the buffer sleeve 1500, the right nut is connected to the buffer sleeve 1500 through the external thread 1201 and the sleeve threaded hole A provided on the buffer sleeve 1500, and the right nut compresses the first buffer spring 1300 to fit tightly against the first buffer rod base 1402 provided on the first buffer rod 1400.

[0041] The second buffer spring 1600 is sleeved on the second buffer rod 1700. The second buffer rod 1700 passes through the left nut and is installed into the left cavity 1505 of the sleeve. The left nut is connected to the buffer sleeve 1500 through the external thread and the sleeve threaded hole B provided on the buffer sleeve 1500; the left nut compresses the second buffer spring 1600 to the sleeve step through the second buffer rod step 1701.

[0042] The electric stapler is also provided with a push-pull ring 1100, and the first buffer rod 1400 is connected to the push-pull ring 1100; specifically, the first buffer rod 1400 is provided with a threaded shaft or a threaded hole, and correspondingly, the push-pull ring 1100 is provided with a threaded hole or a threaded shaft, and the first buffer rod 1400 is connected to the push-pull ring through the threaded shaft and the threaded hole; or, the first buffer rod 1400 is provided with a T-shaped hole or a T-shaped shaft, and correspondingly, the push-pull ring is provided with a T-shaped shaft or a T-shaped hole, and the first buffer rod is connected to the push-pull ring through the T-shaped hole and the T-shaped shaft.

[0043] See attached Figure 7-8 The driving motor 4000 is provided with a motor output shaft 4101, the eccentric wheel component is provided with a motor connecting hole 2001, and the motor output shaft 4101 is installed in the motor connecting hole 2001; the push-pull ring 1100 is provided with a waist-shaped hole, the eccentric wheel component 2000 is provided with an eccentric shaft 2002, and the waist-shaped hole is sleeved on the eccentric shaft 2002.

[0044] See attached Figure 7-9 The driving motor is provided with a fixed shaft 4102 , and the frame is provided with a motor fixing hole 3003 . The driving motor 4000 is positioned and connected to the frame 3000 through the fixed shaft 4102 and the motor fixing hole 3003 .

[0045] The skeleton 3000 is provided with a skeleton circular hole 3004 , and the eccentric wheel component is installed in the circular hole 3004 to realize the positioning connection between the eccentric wheel component 2000 and the skeleton 3000 .

[0046] The specific working process of the electric suturing device of the present invention is as follows: the driving motor drives the eccentric wheel component to rotate and drive the buffer component to perform reciprocating push-pull motion; because the push-pull ring is fixed integrally with the first buffer rod, when the push-pull ring is pulled, the first buffer rod base provided by the first buffer rod further compresses the first buffer spring, and the first buffer spring is pressed toward the right nut after storing energy, and the buffer shaft sleeve drives the left nut to press against the second buffer rod step provided by the second buffer rod, thereby moving the second buffer rod, playing a buffering role in the pulling process; when the push-pull ring is pushed, the first buffer rod base provided by the first buffer rod is pressed against the shaft sleeve step provided by the buffer shaft sleeve, and the shaft sleeve step is pressed against the second buffer spring, and the second buffer spring is pressed against the second buffer rod step provided by the second buffer rod, thereby moving the second buffer rod, playing a buffering role in the pushing process.

[0047] See attached Figure 8-13 The electric suture device also includes an electronic control component, which includes: a first microswitch 5001, a second microswitch 5002, a trigger button 5003, a power supply 5004, and a main microcontroller 5005; the eccentric wheel component is provided with a first makeshift groove 2003 and a second makeshift groove 2004; different angular positions of the eccentric wheel component correspond to different states of the micro switches, and the main microcontroller 5005 reads the states of the first microswitch and the second microswitch to determine the angular position of the eccentric wheel component.

[0048] Specifically, the skeleton 3000 is provided with a micro switch installation hole A 3005 and a micro switch installation hole B 3006 ; the first micro switch and the second micro switch are installed in the micro switch installation hole A and the micro switch installation hole B respectively.

[0049] The main microcontroller 5005 reads the status of the first micro switch 1 and the second micro switch 2 to help determine the angular position of the eccentric wheel component, so as to control the advancement and retreat positions of the buffer rod component.

[0050] When the first micro switch and the second micro switch are pressed by the eccentric wheel component, the state of the first micro switch and the second micro switch is 1, and when the first micro switch and the second micro switch are in the first make way slot and the second make way slot, the state is 0.

[0051] In the initial position, the first microswitch = 0, the second microswitch = 0; in the second position, the first microswitch = 1, the second microswitch = 0; in the third position, the first microswitch = 0, the second microswitch = 1; in the fourth position (the same as the initial position), the first microswitch = 0, the second microswitch = 0. At this time, the eccentric wheel component rotates one circle.

[0052] See attached Figure 13The electric suture device also includes a drive motor power supply voltage detection module, which includes: a voltage detection IC 5506 and an alarm; after power is supplied, the main microcontroller controls the electric suture device to enter an initial state. In the initial state, the voltage detection IC detects the power supply voltage of the motor drive IC 5008 in real time. If the voltage meets the expected value, pressing the trigger button 5003 drives the motor to rotate. If the voltage does not meet the expected value, the alarm is activated and the main microcontroller automatically suspends subsequent drive operations.

[0053] Specifically, the main microcontroller is provided with an automatic zeroing program. In the initial state, the suture device is connected to the power supply 5004, and the power supply 5004 is converted to 3.3V to power the main microcontroller 5005, driving the motor 4000 to rotate until the first microswitch = 0 and the second microswitch = 0, and the voltage detection IC 5506 is used to monitor the power supply voltage of the motor driver IC 5008 in real time. When the voltage meets the expected value, the trigger button 5003 is pressed to drive the motor to rotate 4000. If the voltage does not meet the expected design value, an alarm 5007 will be used to issue an early warning. Preferably, the alarm can include an LED, a buzzer or a display screen, and the main microcontroller 5005 automatically suspends subsequent driving operations to avoid transmission failure caused by insufficient voltage resulting in insufficient torque output of the 4000 drive motor, thereby ensuring complete surgical operation.

[0054] See attached Figure 13 The electric suturing device also includes a current detection module, which includes a current detection IC 5009. The current detection IC 5009 is provided with a threshold value, and the current is monitored in real time during the operation of the driving motor 4000. When the threshold value is exceeded, the alarm 5007 alerts the operator, and the driving motor 4000 pauses and resumes its forward movement, resetting to its initial position to avoid tissue damage or damage to instrument components caused by overload.

[0055] See attached Figure 14 The trigger button 5003 determines the pressing time through a preset program, and is divided into long press and short press according to different pressing times. Different programs can be executed respectively to control the drive motor to rotate to different positions.

[0056] Specifically, after short pressing the trigger button 5003, the driving motor 4000 rotates to the second position and detects the first micro switch = 1 and the second micro switch = 0. Press the trigger button 5003 again and the motor rotates to the initial position, and satisfies the detection twice of the first micro switch = 0 and the second micro switch = 0 in the initial position.

[0057] After long pressing the trigger button 5003, the driving motor 4000 rotates 2 circles, and the initial positions of the first micro switch = 0 and the second micro switch = 0 are detected twice.

[0058] The double micro switch design can accurately control three position states to ensure control accuracy.

[0059] Other embodiments of the present invention will readily occur to those skilled in the art after considering the invention disclosed in the specification and examples.

[0060] This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the technical field not disclosed by the present invention.

[0061] It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

[0062] It will be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof, which is limited only by the appended claims.

Claims

1. An electric stapler comprising: The driving motor, eccentric wheel component and frame are characterized by: The electric suture device further includes a buffer component, wherein the drive motor is connected to the eccentric wheel component, and the eccentric wheel component is connected to the buffer component, and the drive motor drives the eccentric wheel component to rotate and drives the buffer component to perform reciprocating push-pull motion; wherein the buffer component includes: a buffer spring, a buffer rod, and a buffer sleeve; the buffer component can achieve buffering during the pulling and pushing process; The electric suture device further includes an electric control component, which includes: a first micro switch, a second micro switch, a trigger button, a power supply, and a main microcontroller; the first micro switch and the second micro switch are respectively arranged on the frame; the eccentric wheel component is provided with a first give way groove and a second give way groove; different states of the micro switches correspond to different angular positions of the eccentric wheel component, and the main microcontroller determines the angular position of the eccentric wheel component by reading the states of the first micro switch and the second micro switch; When the first microswitch and the second microswitch are pressed by the eccentric wheel component, the state of the first microswitch and the second microswitch is 1. When the first microswitch and the second microswitch are in the first and second give way slots, the state is 0. In the initial position, the first microswitch = 0, the second microswitch = 0; in the second position, the first microswitch = 1, the second microswitch = 0; in the third position, the first microswitch = 0, the second microswitch = 1; in the fourth position, the first microswitch = 0, the second microswitch = 0. At this time, the eccentric wheel component rotates one circle; The trigger button determines the pressing time through a preset program. Different pressing times execute different programs, thereby controlling the drive motor to rotate to different positions; after a short press of the trigger button, the drive motor rotates to the second position and measures the first microswitch = 1 and the second microswitch = 0. Press the trigger button again and the motor rotates to the initial position, and satisfies the detection of the initial position first microswitch = 0 and the second microswitch = 0 twice; after a long press of the trigger button, the drive motor rotates 2 circles and detects the initial position first microswitch = 0 and the second microswitch = 0 twice.

2. The electric stapler according to claim 1, wherein: There are two buffer springs, namely: a first buffer spring and a second buffer spring; there are two buffer rods, namely: a first buffer rod and a second buffer rod; wherein, the first buffer spring is sleeved on the first buffer rod, and the second buffer spring is sleeved on the second buffer rod; a groove is provided on one end surface of the first buffer rod, and one end of the second buffer rod extends into the groove and can slide in the groove.

3. The electric stapler according to claim 2, wherein: The buffer sleeve is divided into a left side cavity and a right side cavity of the sleeve by a sleeve step located in the middle. The first buffer spring is located in the right side cavity of the sleeve, and the second buffer spring is located in the left side cavity of the sleeve. The two ends of the buffer sleeve are respectively connected to the right end cover and the left end cover. The first buffer spring and the second buffer spring are respectively compressed in the right side cavity and the left side cavity of the sleeve through the right end cover and the left end cover.

4. The electric stapler according to claim 3, wherein: A buffer rod base is provided at the end of the first buffer rod, and the right end cover compresses the first buffer spring to press the buffer rod base against the shaft sleeve step; a step hole is provided at the center of the shaft sleeve step, and one end of the second buffer rod passes through the step hole and extends into the groove of the first buffer rod; the second buffer rod is provided with a second buffer rod step, and the left end cover compresses the second buffer spring against the shaft sleeve step through the second buffer rod step.

5. The electric stapler according to claim 4, characterized in that: The electric suturing device is further provided with a push-pull ring, the driving motor is connected to the push-pull ring, and the push-pull ring is connected to the first buffer rod.

6. The electric stapler according to claim 5, characterized in that: The first buffer rod is provided with a threaded shaft or a threaded hole, and correspondingly, the push-pull ring is provided with a threaded hole or a threaded shaft, and the first buffer rod and the push-pull ring are connected through the threaded shaft and the threaded hole; Alternatively, the first buffer rod is provided with a T-shaped hole or a T-shaped shaft, and correspondingly, the push-pull ring is provided with a T-shaped shaft or a T-shaped hole, and the first buffer rod and the push-pull ring are connected through the T-shaped hole and the T-shaped shaft.

7. The electric stapler according to claim 6, wherein: The driving motor is provided with a motor output shaft, the eccentric wheel component is provided with a motor connecting hole, and the motor output shaft is installed in the motor connecting hole; the push-pull ring is provided with a waist-shaped hole, the eccentric wheel component is provided with an eccentric shaft, and the waist-shaped hole is sleeved on the eccentric shaft.

8. The electric stapler according to claim 7, wherein: The electric suture device further includes a supply voltage detection module and / or a current detection module. The power supply voltage detection module includes: a voltage detection IC and an alarm; after the power supply is supplied to the electric suture device, the main microcontroller controls the electric suture device to enter an initial state. In the initial state, the voltage detection IC detects the power supply voltage of the motor drive IC in real time. If the voltage meets the expected value, pressing the trigger button drives the motor to rotate. If the voltage does not meet the expected value, the alarm is activated and the main microcontroller automatically suspends subsequent driving operations. The current detection module includes a current detection IC, which detects the driving current of the reduction motor. The current detection IC detects the current in real time during the operation of the driving motor. If the current exceeds the threshold, the alarm is activated, and the driving motor stops moving forward and resets to the initial position.

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