WO2022027880A1

WO2022027880A1 - Electric anastomat

Info

Publication number: WO2022027880A1
Application number: PCT/CN2020/132661
Authority: WO
Inventors: 姚大强; 于珍珍; 马波; 和题; 朱东东; 谢探一
Original assignee: 山东威瑞外科医用制品有限公司
Priority date: 2020-08-07
Filing date: 2020-11-30
Publication date: 2022-02-10

Abstract

An electric anastomat, comprising a trigger button (1), an adjusting assembly (4), an elastic member (5), a force sensor (11) and a controller. The controller is respectively connected to the force sensor (11) and the adjusting assembly (4), and the elastic member (5) is abutted between the trigger button (1) and the adjusting assembly (4). The force sensor (11) is used for sensing the current acting force of a cartridge assembly (3). When the force sensor (11) sends a signal to the controller, the controller controls the adjusting assembly (4) to slide along the trigger button (1) to enable the adjusting assembly (4) to stretch or compress the elastic member (5), so that the elastic force of the elastic member (5) is adjusted till the elastic force matches the current acting force. Therefore, real-time adjustment of the triggering strength for the trigger button (1) in accordance with the acting force of the cartridge assembly (3) is achieved, facilitating the improvement of operating precision of the cartridge assembly (3); and operation safety thus is improved.

Description

An electric stapler

This application claims the priority of the Chinese patent application with the application number 202010791407.6 and the name of the invention "An Electric Stapler", which was submitted to the China Patent Office on August 7, 2020, and is also required to be submitted on August 7, 2020 The priority of the Chinese Patent Office, the application number 202021639585.9, and the invention title "An Electric Stapler", the entire contents of which are incorporated in this application by reference.

technical field

The invention relates to the field of medical instruments, in particular to an electric stapler.

Background technique

Electric staplers usually use titanium nails and blades to cut off, resection or establish anastomosis of tissue, and are often used in general surgery, thoracic surgery, urology and other surgical operations. In view of the fact that manual staplers have strict requirements on the user's use skills and operation strength, so that the electric stapler with low operation difficulty can be widely used, it is particularly necessary to optimize the structure of the electric stapler.

The existing electric stapler includes a fixed handle, a firing handle, a rotating handle, a docking rod and a staple cartridge assembly, the firing handle and the fixed handle are hinged, the rotating handle can be rotatably sleeved on the end of the fixed handle, and the staple cartridge assembly can be detachably clamped. Connected to the free end of the docking rod; before use, when the rotating handle is first rotated, the docking rod drives the nail cartridge assembly to rotate around its own axis to adjust the working angle of the nail cartridge assembly; when in use, when the firing handle is pulled, the nail cartridge assembly follows. To achieve opening and closing, the staple cartridge assembly cuts and sews the assembly. Although the existing electric stapler has a high degree of automation, it is difficult to control the working accuracy of the staple cartridge assembly by means of the firing handle, and there is still a risk of misoperation, which poses a great threat to the safety of the operation.

Therefore, how to optimize the structure of the electric stapler to improve the safety of the operation is a technical problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an electric stapler, in which the elastic piece abuts between the firing button and the adjusting component, and the controller controls the adjusting component to slide along the firing button according to the signal sent by the force detection piece to adjust the elastic force of the elastic piece until the elasticity is reached. The force matches the current force, and the triggering force of the firing button is adjusted in real time according to the force of the cartridge assembly. The working precision of the cartridge assembly is high, and the operation safety is high.

The electric stapler provided by the present invention is characterized in that, comprising:

fire button;

an adjustment assembly slidably mounted on the firing button;

an elastic piece abutting between the firing button and the adjustment assembly;

A force detector for detecting the current force of the cartridge assembly;

The controller is respectively connected with the force detecting element and the adjusting element, the controller is used for controlling the adjusting element to slide along the firing button according to the signal sent by the force detecting element to adjust the elastic force of the elastic element until the elastic force matches the current acting force.

Preferably, the adjustment assembly includes:

an armature rod slidably sleeved on the firing button, and the armature rod has an abutment flange that abuts against the elastic piece;

A fixed coil with a relatively fixed position, sleeved on the outer circumference of the armature rod, and connected to the controller. The controller is used to adjust the magnetic induction intensity of the fixed coil according to the signal sent by the force detection element, so that the fixed coil can adjust the sliding distance of the armature rod accordingly.

Preferably, the fixed coil is provided with a tapered groove, and the outer circumference of the armature rod is integrally provided with a tapered block matched with the tapered groove.

Preferably, it also includes a main driving member for driving the staple cartridge assembly to move forward and a displacement detecting member for detecting the current moving distance of the firing button. The signal sent by the detecting element controls the main driving element to output a preset driving force according to the current moving distance.

Preferably, the displacement detecting member is connected to the armature rod, the displacement detecting member is used to detect the actual moving distance of the armature rod, and the controller is used to adjust the voltage of the fixed coil when the actual moving distance is inconsistent with the ideal moving distance according to the signal sent by the displacement detecting member until the The actual moving distance is the same as the ideal moving distance.

Preferably, it also includes a transmission rack that is arranged between the main driving member and the staple cartridge assembly, and the force detection member is arranged on the transmission rack.

Preferably, it also includes:

An identification label for the staple cartridge assembly;

a reader located in the controller;

The communication trigger point is used to set the communication trigger point of the staple cartridge assembly, and the communication trigger point is used to trigger the controller to establish wireless communication between the identification tag and the reader after the staple cartridge assembly is docked with the docking rod.

Preferably, it also includes:

target indicator;

A travel switch used to detect whether the staple cartridge assembly has reached the target position;

a Hall sensor for detecting the rotational speed of the main drive part to determine whether the staple cartridge assembly has reached the target position according to the acquired moving distance of the staple cartridge assembly;

The target indicator light, the travel switch and the Hall sensor are respectively connected to the controller, and the controller is used to control the display of the target indicator light when the staple cartridge assembly touches the target position according to the signals sent by the travel switch, the Hall sensor and the force detection element at the same time. green light.

Preferably, it also includes:

sirens for sounding alarms;

A quality test piece used to test whether the battery is qualified;

The alarm device and the quality detection part are respectively connected with the controller, and the controller is used to load the battery into the battery slot when the battery is qualified or start the alarm when the battery is unqualified according to the signal sent by the quality detection device;

The battery detection part is used to detect whether the battery is installed in the battery slot, the battery detection part is connected with the controller, and the controller is used for starting the self-discharge component when the battery is loaded into the battery slot according to the signal sent by the battery detection part.

Preferably, it also includes:

press indicator light;

A pressing force detection piece used to detect whether the actual pressing force of the pressing component reaches the specified pressing force;

A timer used to detect whether the actual pressing time of the pressing component reaches the specified pressing time;

The pressing indicator light, the pressing detection piece and the timer are respectively connected with the controller. The controller is used to send the signal according to the pressing detection and the timer at the same time when the actual pressing force reaches the specified pressing force and the actual pressing time reaches the specified pressing time. The start press indicator lights up green.

Compared with the background art, the electric stapler provided by the present invention includes a firing button, an adjustment component, an elastic piece, a force detection piece and a controller. The controller is respectively connected with the force detection piece and the adjustment component, and the elastic piece abuts against the firing button and between adjustment components. The force detection part is used to detect the current force of the cartridge assembly. When the force detection part sends a signal to the controller, the controller controls the adjustment assembly to slide along the firing button, so that the adjustment assembly stretches or squeezes the elastic part, so as to adjust the elastic part. Elastic force until the elastic force of the elastic member matches the current force, so that the triggering force of the firing button can be adjusted in real time according to the force of the cartridge assembly, which is convenient to improve the working accuracy of the cartridge assembly, and the operation safety is naturally improved. .

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a structural diagram of an electric stapler without a staple cartridge assembly provided by a specific embodiment of the present invention;

Fig. 2 is the structural diagram of the staple cartridge assembly;

Fig. 3 is the assembly structure diagram of the firing button, the adjustment assembly and the elastic member;

Figure 4 is a structural diagram of a transmission rack provided with a detection contact;

Figure 5 is a schematic diagram of the assembly of the main driver and the Hall sensor.

The reference numbers are as follows:

Firing button 1, docking rod 2, staple cartridge assembly 3, adjustment assembly 4, elastic member 5, displacement detection member 6, main drive member 7, Hall sensor 8, transmission rack 9, identification label 10 and force detection member 11;

detection contact 111;

Armature rod 41 and fixed coil 42 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIGS. 1 to 5. FIG. 1 is a structural diagram of an electric stapler without a staple cartridge assembly provided by a specific embodiment of the present invention; FIG. 2 is a structural diagram of a staple cartridge assembly; The assembly structure diagram of the adjustment component and the elastic member; Fig. 4 is the structure diagram of the transmission rack with detection contacts; Fig. 5 is the assembly diagram of the main driving member and the Hall sensor.

The electric stapler provided by the present invention includes a firing button 1 , an adjustment component 4 , an elastic component 5 , a force detection component 11 and a controller, and the controller is respectively connected with the force detection component 11 and the adjustment component 4 . The controller is specifically a single-chip microcomputer, such as an STC single-chip microcomputer, which is powered by a 5V power supply and does not require a crystal oscillator. It has a large program storage and data storage area inside, and has multiple AD sampling pins, which can collect the voltage and current of the battery in real time. Small packaging is used to reduce the area of the circuit board. The driver chip adopts H-bridge DC motor driver chip, such as MC3386, or MOS tube driver. The core is to use PWM to adjust the voltage and current input to the DC motor.

The firing button 1 includes a coaxially arranged trigger flange and a button body, the trigger flange is integrally connected with the button body, and the cross-sectional area of the trigger flange is larger than that of the button body. Specifically, the trigger flange and the button body are both cylindrical, and the outer diameter of the trigger flange is larger than the outer diameter of the button body. When the user's finger pushes the firing button 1, the staple cartridge assembly 3 cuts and sews the tissue through the transmission assembly. The specific structure and working principle of the staple cartridge assembly 3 may refer to the prior art.

The adjusting assembly 4 is slidably mounted on the firing button 1 for adjusting the triggering force of the firing button 1 . The adjustment assembly 4 can be a hydraulic cylinder, an air cylinder, a magnetic induction coil, or the like. For the specific structure and working principle of the adjustment assembly 4, reference may be made to the following contents.

The elastic member 5 abuts between the firing button 1 and the adjustment assembly 4 , and the elastic member 5 is always kept in a compressed state to provide damping for the firing button 1 . The elastic member 5 is sleeved on the button body, and is specifically a cylindrical spring. One end of the elastic member 5 close to the firing button 1 is specifically abutted against the trigger flange.

The force detection part 11 is used to detect the current acting force of the staple cartridge assembly 3, and the force detection part 11 may be a tension/pressure sensor, but is not limited thereto. Considering that the cartridge assembly 3 involves multiple actions, the force detection member 11 can detect various types of applied forces. For example, when the staple cartridge assembly 3 clamps the tissue, the force detection member 11 is used to detect the clamping force of the staple cartridge assembly 3 . When the staple cartridge assembly 3 cuts tissue, the force detection member 11 is used to detect the cutting force of the staple cartridge assembly 3 . When the staple cartridge assembly 3 is retracted and reset, the force detector 11 is used to detect the retracting force of the staple cartridge assembly 3 .

The transmission assembly in the present invention includes a transmission gear and a transmission rack 9 that mesh with each other. The transmission rack 9 is arranged between the main driving member 7 and the nail cartridge assembly 3, so that the main driving member 7 drives the nail cartridge assembly through the transmission rack 9. 3 actions. The force detection element 11 is arranged on the transmission rack 9 . The force detection member 11 is integrally provided with a detection contact 111, and the detection contact 111 is used to communicate the controller and the force detection member 11 to ensure the connection reliability of the force detection member 11 and the controller, and to ensure that the force detection member 11 has a high degree of reliability. Detection accuracy. Of course, the installation manner of the force detection member 11 is not limited to this.

When the force detection part 11 detects the current force of the staple cartridge assembly 3 in a certain working state, the force detection part 11 sends a signal to the controller, and the controller according to the pre-stored correspondence between the current force and the elastic force in different working states When the relationship between the current force and the elastic force does not correspond, the controller controls the adjustment component 4 to slide along the firing button 1, and the firing button 1 slides to the right or left, so that the adjustment component 4 correspondingly elongates or squeezes the elastic member 5 , so as to adjust the elastic force of the elastic member 5 until the elastic force of the elastic member 5 matches the current acting force, thereby realizing real-time adjustment of the triggering force of the firing button 1 according to the acting force of the staple cartridge assembly 3, so as to facilitate the lifting of the staple cartridge assembly 3 working accuracy, the operation safety is naturally improved.

Considering the working accuracy of the adjusting assembly 4 , the adjusting assembly 4 is a magnetic induction type, including an armature rod 41 and a fixed coil 42 , and the armature rod 41 is slidably sleeved on the firing button 1 . The armature rod 41 has an abutment flange that abuts against the elastic piece 5 . The abutting flange is disposed on one end of the armature rod 41 close to the firing button 1 , and in addition to abutting against the elastic member 5 , the abutting flange is also used to axially limit the armature rod 41 . Based on the current view of FIG. 3 , when the armature rod 41 moves a certain distance, the stop flange abuts against the left end of the fixed coil 42 to prevent the armature rod 41 from separating from the fixed coil 42 .

The position of the fixed coil 42 is relatively fixed, so that the armature rod 41 is axially slid relative to the fixed coil 42 . The fixed coil 42 is sleeved on the outer circumference of the armature rod 41, and the fixed coil 42 is connected with the controller. The controller adjusts the current of the fixed coil 42 according to the signal sent by the force detection element 11, thereby adjusting the magnetic induction intensity of the fixed coil 42, thereby adjusting the fixed coil 42. The magnetic induction force of the coil 42 adjusts the force applied to the armature rod 41 , so that the sliding distance of the armature rod 41 can be precisely adjusted according to the force detection member 11 .

Specifically, the fixed coil 42 is provided with a tapered groove, and the outer circumference of the armature rod 41 is integrally provided with a tapered block, and the tapered block is matched with the tapered groove, so that the length of the magnetic induction line of the fixed coil 42 is kept the same, and the magnetic induction line of the fixed coil 42 is guaranteed to flow through the fixed coil. The current of 42 has a linear relationship with the magnetic induction force, which facilitates the controller to precisely adjust the magnetic induction force applied to the armature rod 41 by adjusting the current flowing through the fixed coil 42 , and provides a basis for the stable sliding of the armature rod 41 .

The present invention also includes a main driving member 7 and a displacement detecting member 6 respectively connected to the controller. The main driving member 7 is used to drive the staple cartridge assembly 3 to move forward. The main driving member 7 can be a servo motor, or a DC motor. The displacement detector 6 is used to detect the current moving distance of the firing button 1 , and can be a displacement sensor. When the displacement detecting member 6 detects the current moving distance of the firing button 1 , the displacement detecting member 6 sends a signal to the controller, and the controller stores the correspondence between the current moving distance of the firing button 1 and the preset driving force of the main driving member 7 relationship, adjust the driving voltage and current of the main driving member 7, and then control the main driving member 7 to output the preset driving force, so that the main driving member 7 can accurately output the driving force, so as to accurately control the movement of the staple cartridge assembly 3 according to the moving distance of the firing button 1. The strength of tissue pressing and cutting is beneficial to improve the working accuracy of the staple cartridge assembly 3 and further improve the safety of the operation.

In this specific embodiment, the button body of the firing button 1 is provided with a guide rod passing through the center of the armature rod 41 , the armature rod 41 slides axially along the guide rod, and the end of the guide rod away from the button body is fixedly connected with the displacement detection member 6 . The guide rod is integrally connected with the button body.

In addition, the displacement detecting member 6 can realize the closed-loop control of the adjusting assembly 4. The displacement detecting member 6 is connected with the armature rod 41, and the end of the armature rod 41 away from the firing button 1 is integrally provided in the connecting sleeve, and the connecting sleeve is also fixed with the displacement detecting member 6. even. Based on the fact that the displacement detecting member 6 is connected with the armature rod 41 , in addition to detecting the current moving distance of the firing button 1 , the displacement detecting member 6 is also used to detect the actual moving distance of the armature rod 41 . When the displacement detecting element 6 detects the actual moving distance of the armature rod 41 , the displacement detecting element 6 sends a signal to the controller, and the controller determines whether the actual moving distance is consistent with the ideal moving distance. If not, the controller adjusts the fixed coil 42 again The current adjusts the actual moving distance of the armature rod 41 until the actual moving distance is consistent with the ideal moving distance; As a result, the moving distance of the armature rod 41 is precisely controlled, which is beneficial to further improve the working accuracy, thereby improving the safety of the operation.

In order to identify different types of staple cartridge assemblies 3, the present invention also includes an identification label 10, a reader and a communication trigger point, the identification label 10 is set on the staple cartridge assembly 3, and the content stored in the identification labels 10 of different types of staple cartridge assemblies 3 different. The reader is set on the controller, and wireless communication is realized between the reader and the identification tag 10 by means of radio frequency identification technology. The communication trigger point is set on the nail cartridge assembly 3. When the nail cartridge assembly 3 is docked with the docking rod 2, the communication trigger point is in contact with the nail cartridge assembly 3, the communication trigger point triggers the controller, and the controller controls the communication control circuit to be connected, so that the identification tag is connected. 10 Establish wireless communication with the reader to automatically identify the type of top bin components, and also solve the problem of reducing communication energy consumption and controller energy consumption, as well as ultra-long-distance identification and avoiding misidentification of non-installed cutting components. problem. The identification label 10 may contain information such as the manufacturer, batch and model of the cartridge assembly 3 .

The present invention also includes an emergency stop button connected with the controller. When other tissues are accidentally injured, the emergency stop button is activated urgently, and the emergency stop button sends an emergency stop command to the controller. The component 7 drives the staple cartridge assembly 3 to open the jaws, and drives the staple cartridge assembly 3 to quickly reset, which is beneficial to improve the safety of the operation.

The present invention also includes a target indicator light, a travel switch and a Hall sensor 8 respectively connected to the controller, and the target indicator light is an LED light for reminding the user. The travel switch is used to detect whether the staple cartridge assembly 3 reaches the target position, and may be a mechanical switch, a magnetic switch, or a photoelectric switch, etc., which is not specifically limited here. The Hall sensor 8 is used to detect the rotational speed of the main driving member 7. When the main driving member 7 rotates once, the Hall sensor 8 sends a pulse signal to the control, so as to accurately calculate the moving distance of the staple cartridge assembly 3, and thus can accurately It is judged whether the staple cartridge assembly 3 reaches the target position. In addition, according to the relationship between the force and the moving distance stored by the controller, the controller can calculate the moving distance of the staple cartridge assembly 3 according to the force detected by the force detector 11, and can also accurately determine whether the staple cartridge assembly 3 has reached the target. Location. Therefore, the redundant design is realized according to the trip switch, the hall sensor 8 and the force detection element 11, so that the controller controls the target indicator light to display green light according to the signals sent by the three at the same time, reminding the nail cartridge assembly 3 that has accurately reached the target position , so that the working precision of the staple cartridge assembly 3 is higher and the operation safety is better.

In order to make the main driving part 7 operate reliably, the present invention provides two power supply circuits, one is for the driving circuit to supply power to the motor, and the other is for the control circuit to supply power to the chip. When the battery voltage sags, it can still maintain the normal operation of the chip, which ensures the safety of the operation. Among them, the chip is built into the controller.

The present invention also includes an alarm device, a quality detection part and a battery detection part respectively connected with the controller, the alarm device is used to send out an alarm, and the alarm device can be an audible and visual alarm device for improving users. The quality detection component is used to detect whether the battery is qualified. The quality detection component may be a voltmeter for detecting the positive and negative voltages of the battery, or an image recognition device for detecting the battery model, which is not limited here. The controller is used to load the battery into the battery slot when the battery is qualified according to the signal sent by the quality test piece, or start the alarm when the battery is unqualified, and remind the user to check or replace the battery in time with the help of the alarm.

Of course, the present invention can also add a power detecting element connected to the controller and used to detect the battery power. When the power detecting element detects that the remaining power of the battery is lower than the preset power, the controller activates an alarm to give an alarm. The electricity detecting element may be a voltmeter, but is not limited thereto. The preset power can be pre-entered into the controller.

The battery detection component is used to detect whether the battery is installed in the battery slot, and may be an obstacle sensor provided in the battery slot, but is not limited to this. When the battery is installed in the battery slot, the battery is in contact with the battery detection part, and the controller starts the self-discharge component according to the signal sent by the battery detection, so that the battery self-discharges, so that the battery consumes energy within a predetermined time, preventing the battery from being recycled or dangerous or Reuse of batteries.

After the pressing assembly presses the tissue, the firing button 1 is triggered, and the staple cartridge assembly 3 performs the cutting action. During the cutting process, use the force detector 11 to detect whether the force of the staple cartridge assembly 3 is normal, if so, use the displacement detector 6 to determine whether the staple cartridge assembly 3 has moved to the target position; if not, the controller activates an alarm to give an alarm , reminding the user to trigger the retract button, and the cartridge assembly 3 quickly retracts the knife. When the staple cartridge assembly 3 abuts against the target position, the controller controls the staple cartridge assembly 3 to perform suturing at the target position according to the signal sent by the displacement detector 6 . After the suture is completed, a reset detection piece connected to the controller can be added. The reset detection piece can be a contact sensor, etc., and the reset detection piece can be used to detect whether the staple cartridge assembly 3 is reset. When the reset detection piece detects that the staple cartridge assembly 3 is reset, control The controller control reset indicator shows green light, and the reset indicator can be an LED light.

The present invention also includes a pressing indicator light, a pressing force detecting element and a timer which are respectively connected with the controller, and the pressing indicator light can be an LED light. The pressing force detecting element is used to detect whether the actual pressing force of the pressing component reaches the specified pressing force, and the pressing force detecting element can be a pressure sensor. The timer is used to detect whether the actual pressing time of the pressing assembly reaches the specified pressing time. When the pressing force detector detects that the actual pressing force reaches the specified pressing force and the timer detects that the actual pressing time reaches the specified pressing time. The pressing force detector and the timer send signals to the controller at the same time, and the controller starts the pressing indicator and displays a green light, reminding the user that the pressing component presses the tissue normally.

The present invention also includes a display screen connected to the controller, and the display screen can be used to display parameters such as the model, clamping force, cutting force, battery power, battery voltage, output current, firing times and remaining firing times of the staple cartridge assembly 3 in real time.

In the present invention, the communication between the controller and each component is preferably wireless communication, and wireless transmission methods such as wlan, 2.4G, 5G, and Bluetooth can be used to transmit signals to the controller. For example, the 2.4G communication chip NRF24L01 is used to communicate with the controller using SPI mode.

The electric stapler provided by the present invention has been introduced in detail above, and the principles and implementations of the present invention are described with specific examples in this paper. The descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the present invention.

Claims

An electric stapler, characterized in that it comprises:

fire button (1);

an adjustment assembly (4) slidably mounted on the firing button (1);

an elastic member (5) abutting between the firing button (1) and the adjusting assembly (4);

a force detector (11) for detecting the current force of the cartridge assembly (3);

A controller respectively connected to the force detection member (11) and the adjustment assembly (4), the controller is used for controlling the adjustment assembly (4) along the The firing button (1) slides to adjust the elastic force of the elastic member (5) until the elastic force matches the current acting force.
The electric stapler according to claim 1, wherein the adjustment assembly (4) comprises:

an armature rod (41) slidably sleeved on the firing button (1), the armature rod (41) having an abutment flange that abuts against the elastic member (5);

a fixed coil (42) with a relatively fixed position and sleeved on the outer circumference of the armature rod (41) and connected with the controller, the controller is used to adjust the fixed coil according to the electrical signal sent by the force detection element (11). The magnetic induction intensity of the coil (42) enables the fixed coil (42) to adjust the sliding distance of the armature rod (41) correspondingly.
The electric stapler according to claim 2, characterized in that, the fixed coil (42) is provided with a tapered groove, and the outer circumference of the armature rod (41) is integrally provided with a cone matched with the tapered groove type block.
The electric stapler according to claim 2, characterized in that it further comprises a main driving member (7) for driving the staple cartridge assembly (3) to move forward and for detecting the current moving distance of the firing button (1). The displacement detecting element (6) of the main driving element (7) and the displacement detecting element (6) are both connected to the controller, and the controller is used for the signal sent by the displacement detecting element (6) The main driving member (7) is controlled to output a preset driving force according to the current moving distance.
The electric stapler according to claim 4, characterized in that the displacement detecting member (6) is connected with the armature rod (41), and the displacement detecting member (6) is used for detecting the armature rod (41). ), the controller is used to adjust the voltage of the fixed coil (42) according to the signal sent by the displacement detector (6) when the actual moving distance is inconsistent with the ideal moving distance until the actual movement The distance corresponds to the ideal moving distance.
The electric stapler according to claim 4, characterized in that it further comprises a drive rack (9) arranged between the main driving member (7) and the staple cartridge assembly (3), the force detection The component (11) is arranged on the transmission rack (9).
The electric stapler according to any one of claims 4 to 6, characterized in that, further comprising:

an identification label (10) for the staple cartridge assembly (3);

a reader provided in the controller;

A communication trigger point for the staple cartridge assembly (3), the communication trigger point being used to trigger the controller to make the identification tag (10) after the staple cartridge assembly (3) is docked with the docking rod (2) Wireless communication is established with the reader.
The electric stapler according to claim 7, further comprising:

target indicator;

A travel switch for detecting whether the staple cartridge assembly (3) reaches the target position;

a Hall sensor (8) for detecting the rotational speed of the main drive member (7) to determine whether the staple cartridge assembly (3) has reached the target position according to the acquired moving distance of the staple cartridge assembly (3);

The target indicator light, the travel switch and the hall sensor (8) are respectively connected to the controller, and the controller is used for according to the travel switch, the hall sensor (8) and the force The signals sent by the three detecting elements (11) at the same time control the target indicator light to display green light when the staple cartridge assembly (3) abuts against the target position.
The electric stapler according to any one of claims 4 to 6, characterized in that, further comprising:

sirens for sounding alarms;

A quality test piece used to test whether the battery is qualified;

The alarm device and the quality detection part are respectively connected to the controller, and the controller is used to load the battery into the battery slot when the battery is qualified or start the battery when the battery is unqualified according to the signal sent by the quality detection component. the alarm;

A battery detection component for detecting whether a battery is installed in a battery slot, the battery detection component is connected to the controller, and the controller is used for starting self-discharge when the battery is loaded into the battery slot according to a signal sent by the battery detection component components.
The electric stapler according to any one of claims 4 to 6, characterized in that, further comprising:

press indicator light;

A pressing force detection piece used to detect whether the actual pressing force of the pressing component reaches the specified pressing force;

A timer used to detect whether the actual pressing time of the pressing component reaches the specified pressing time;

The pressing indicator light, the pressing detection piece and the timer are respectively connected to the controller, and the controller is used for displaying the signal in the controller according to the signals simultaneously sent by the pressing detection and the timer. When the actual pressing force reaches the specified pressing force and the actual pressing time reaches the specified pressing time, the pressing indicator light is activated to display green light.