An electric stapler device for surgery

By using pushers and induction switches to identify nail magazine components with different strokes in the electric stapler device, the same handle body is adapted to multiple nail magazine components, and the overall structure of the instrument body and nail magazine components is solved in the prior art. The problem of space improves the security and visualization of operations.

CN114948032BActive Publication Date: 2024-12-31WUXI BEIEN SURGERY DEVICE CO LTD
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Patent Information

Application Number
CN202210812778.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-11
Publication Date
2024-12-31
Estimated Expiration
2042-07-11

AI Technical Summary

Technical Problem

The existing electric stapler can only adapt to one stroke of nail magazine assembly, and it needs to be identified and adapted during the operation, resulting in the overall structure of the instrument body and nail magazine assembly occupying more space and losing market competitiveness.

Method used

An electric stapler device for surgery is designed. By setting a pusher and an induction switch in the body of the instrument, the pusher is retreated and reset by the insertion pusher of the nail magazine assembly. The induction switch recognizes the nail magazine assembly of different strokes, thereby achieving the same The body is adapted to multiple nail magazine components with different strokes, and the corresponding operation is triggered by the pressing of the control button.

Benefits of technology

It realizes that the same body can adapt to the nail magazine assembly of multiple different strokes, avoids the need for multi-spec nail magazine assembly, improves the visualization and safety of operations, and prevents misoperation.

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Abstract

The present invention discloses an electric stapler device for surgery, comprising a device body and a nail magazine assembly, and also comprising: a sensing mechanism, which is arranged in the device body and located between the handle end and the plug end, comprising a pusher movably arranged in the device body and a plurality of sensing switches for sensing the moving stroke of the pusher and arranged at intervals on the moving path of the pusher, the pusher retreats toward the handle end under the driving force when the nail magazine assembly is inserted into the device body, and moves forward toward the plug end to reset when the nail magazine assembly is disassembled; a control button can be pressed to trigger a control unit to perform a corresponding operation only after the sensing switch recognizes the nail magazine assembly, and there is no response when the sensing switch does not recognize the nail magazine assembly. The problem that multiple specifications of nail magazine assemblies are required in the prior art during the surgical process is solved. The same stapler can be adapted to nail magazine assemblies with different strokes, and there is a certain effect of preventing misoperation and visualizing the operation.
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Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an electric stapler device for surgery. Background Art

[0002] A stapler is a mechanical suturing device used in medicine to replace traditional manual suturing. Compared with traditional manual suturing technology, the use of a stapler has the advantages of small tissue reaction, neat arrangement of staples, and equal spacing. It effectively avoids the problems of manual suturing that is too sparse or too dense, and ligation that is too tight or too loose. At the same time, the mechanical suturing stapler is easy to operate and can greatly shorten the doctor's operation time.

[0003] Staplers are divided into manual staplers and electric staplers. Traditional surgeries mostly use manual staplers. With the continuous expansion of the application scope of staplers, the performance requirements for staplers are getting higher and higher, and electric staplers are used more and more widely. Existing electric staplers are usually composed of a body (handle) and a nail magazine assembly. The body and the nail magazine assembly are a whole, that is, one stapler can only adapt to a nail magazine assembly with one stroke. During surgery, multiple staplers are often required. The electric stapler with the above-mentioned body and nail magazine assembly integrated structure will occupy more surgical tray space and has lost its market competitiveness. Therefore, it is urgent to develop a universal body that can adapt to a variety of nail magazine assemblies with different strokes. However, for electric staplers, how to identify the same body after it is connected to nail magazine assemblies with different strokes and what control strategy to use for subsequent surgical operations after identification is a technical problem that needs to be solved. Summary of the invention

[0004] In response to at least one of the above-mentioned technical problems, the object of the present invention is to provide an electric stapler device for surgery, which can enable the same stapler body to adapt to multiple stapler magazine assemblies with different strokes, with the aim of solving the problem that the existing electric stapler can only adapt to the adaptation of stapler magazine assemblies with one stroke and how to identify and perform subsequent surgical operations.

[0005] The technical solution of the present invention is:

[0006] The object of the present invention is to provide an electric stapler device for surgery, comprising a device body and a stapler magazine assembly, wherein the device body comprises a handle end and a plug end, wherein a plurality of stapler magazine assemblies with different strokes can be selectively rotatably plugged into the plug end, wherein a driving motor and a control unit for controlling the driving motor are arranged in the handle end, wherein a control button electrically connected to the control unit is also arranged on the handle end, and wherein the electric stapler device further comprises:

[0007] The sensing mechanism is arranged in the body and between the handle end and the plug end, and includes a pusher movably arranged in the body and a plurality of sensing switches for sensing the moving stroke of the pusher and arranged at intervals on the moving path of the pusher. The pusher retreats toward the handle end under the driving force when the nail magazine assembly is inserted into the body, and moves forward toward the plug end to reset when the nail magazine assembly is removed;

[0008] The control button can be pressed to trigger the control unit to perform a corresponding operation only after the induction switch recognizes the nail magazine assembly. When the induction switch does not recognize the nail magazine assembly, there is no response when pressing the control button.

[0009] Preferably, a first shell and a second shell are provided in sequence between the plug end and the handle end;

[0010] The first housing abuts against the rear end of the plug-in end and is provided with an unloading switch for unloading the nail magazine assembly, and the first housing can be moved by the driving force of the nail magazine assembly rotating and inserting into the plug-in end;

[0011] The second housing is fixedly disposed between the handle end and the plug end, the pushing member is disposed in the second housing, the pushing member comprises a body and a biasing member, the front end of the body is provided with an abutting portion that always abuts against the rear end of the first housing, and the rear end of the body is a sensing end adapted to the sensing switch;

[0012] A slideway for the body to slide is provided in the second shell, and a first limiting portion is provided at one end of the slideway close to the first shell, and a second limiting portion is provided at one end away from the first shell. When the pusher is in the initial position, the first limiting portion can abut against a convex wall of the body close to the abutting portion.

[0013] One end of the biasing member abuts against one end of the body close to the abutting portion, and the other end abuts against the second limiting portion. The biasing member applies a biasing force to the pushing member to move toward the first shell direction.

[0014] Preferably, the main body is provided with a mounting groove which is concave in the thickness direction thereof and extends in the sliding direction of the pusher, and a portion of the mounting groove close to the second limiting portion penetrates the surface of the main body in the thickness direction to form an avoidance groove, and the avoidance groove extends in the moving direction of the pusher;

[0015] The second limiting portion extends into the avoidance sliding groove.

[0016] Preferably, the first limiting portion is an L-shaped stopper symmetrically and spaced apart on the upper and lower sides of the slideway;

[0017] The second limiting portion is a limiting block provided on the inner side wall of the second shell and protruding and extending radially inward.

[0018] Preferably, a through hole communicating with the slideway is formed on the rear of the second housing corresponding to the second limiting portion, and a notch communicating with the through hole is formed on the side wall corresponding to the rear of the through hole;

[0019] The sensing end of the pushing member can extend into the notch through the through hole, and the sensing switch is arranged above the notch.

[0020] Preferably, the induction switch is a photoelectric switch, and the induction end is provided with a plurality of notches spaced apart along the moving direction of the pusher.

[0021] Preferably, a zero position travel switch, a closing travel switch and a nail magazine travel switch are also provided in the body of the device;

[0022] The control buttons include a firing button, a reset switch button and a safety switch button;

[0023] During use, the electric stapler device performs the following steps:

[0024] The sensing mechanism identifies the nail magazine assembly;

[0025] Press the firing button, the zero position travel switch is disconnected, the firing to closed position travel switch is disconnected, and the red indicator light is on;

[0026] Press the safety switch, and the red indicator light turns green;

[0027] Short press the firing button to fire until the magazine travel switch is disconnected; or long press the firing button to fire until the magazine travel switch is disconnected;

[0028] Release the firing button, and the travel switch automatically returns to the zero position and turns on;

[0029] The safety switch is reset and there is no response when pressed again;

[0030] Remove the nail magazine;

[0031] The sensing mechanism recognizes the initial position and the safety switch can be used.

[0032] Preferably, if the sensing mechanism fails to identify the stapler magazine assembly, all control buttons are pressed without response, and the electric stapler device does not work.

[0033] Preferably, if the firing button is pressed to fire until the closed travel switch is disconnected, and a bad or inappropriate firing situation is encountered, the reset switch button is pressed, the red indicator light goes out, the closed travel switch is turned on, and the reset to zero position travel switch is turned on.

[0034] Preferably, after pressing the safety switch, if pressing the firing button does not respond or encounters a bad or unsuitable firing situation, press the reset switch, the red indicator light goes out, the closed travel switch is turned on, and the reset to zero position travel switch is turned on.

[0035] Compared with the prior art, the advantages of the present invention are:

[0036] The electric stapler device for surgery of the present invention is provided with a pusher, which is pushed back when the nail magazine assembly is inserted into the plug-in end of the device body and resets after the nail magazine assembly is unloaded, and uses a sensing switch to sense the moving stroke of the pusher, so that the same device body can be adapted to nail magazine assemblies with different strokes, and the control button can only be turned on after the nail magazine assembly is identified, otherwise it will not be turned on. The problem of the prior art that the surgical process requires nail magazine assemblies of multiple specifications is solved. The same stapler can be adapted to nail magazine assemblies with different strokes, and has a certain effect of preventing misoperation and visualizing the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0038] Figure 1 A schematic diagram of the structure of an electric stapler device for surgery according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic structural diagram of the cooperation between the second housing and the pushing member of the surgical electric stapler device according to an embodiment of the present invention;

[0040] Figure 3 A schematic structural diagram of a main body of a pusher of an electric stapler device for surgery according to an embodiment of the present invention at one angle;

[0041] Figure 4 It is a structural schematic diagram of another angle of the main body of the pusher of the surgical electric stapler device according to an embodiment of the present invention;

[0042] Figure 5 It is a structural schematic diagram of a second housing of an electric stapler device for surgery according to an embodiment of the present invention;

[0043] Figure 6 This is a schematic structural diagram of the electric stapler device for surgery according to an embodiment of the present invention, with the second housing and the rotating drum omitted;

[0044] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at point A in the middle;

[0045] Figure 8It is a structural schematic diagram of the connection between the sensing mechanism, the travel switch and the control button of the surgical electric stapler device (the handle end, the first shell, the second shell and the plug end are omitted) according to an embodiment of the present invention;

[0046] Fig. 9 2 is a working framework diagram of an electric stapler device for surgery according to an embodiment of the present invention.

[0047] Among them: 1. body; 11. handle end; 12. plug end; 13. control button; 131. safety switch button; 132. firing switch button; 133. reset switch button; 14. second shell; 141. slide; 142. first limit part; 143. second limit part; 144. through hole; 145. notch; 15. push member; 151. body; 1511. abutment end; 1512. sensing end; 1513. convex wall; 1514. mounting groove; 1515. avoidance slide groove; 1516. notch; 152. biasing member; 16. first shell; 17. sensing switch; 18. travel switch. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention. Example

[0049] See also Figures 1 to 8An electric stapler device for surgery according to an embodiment of the present invention comprises a body 1 and a nail magazine assembly, wherein the body 1 comprises a handle end 11 and a plug end 12, wherein a driving motor, a transmission gear and a control unit for controlling the driving motor are arranged in the handle end 11, and the control unit comprises a control main board and a control button 13 connected to the control main board. The plug end 12 is provided with a plug interface for rotating and inserting the nail magazine assembly, and the specific structure of the plug interface is not described and limited, and is a conventional rotating plug structure in the prior art. At the same time, the body 1 also comprises a housing, and a screw rod meshing with the transmission gear is also arranged in the housing. The electric stapler device also comprises a sensing mechanism, which is arranged in the body 1 and in the housing between the handle end 11 and the plug end 12, and specifically comprises a pusher 15 and a sensing switch 17. The pusher 15 can be moved back toward the handle end 11 by the driving force when the nail magazine assembly is inserted, and can be moved forward and reset toward the plug end 12 after the nail magazine assembly is disassembled. The induction switch 17 is arranged on the moving path of the pusher 15, and is used to sense the moving stroke of the pusher 15. Since the nail magazine components of different specifications and models are inserted into the body 1 at different depths when installed in the body 1, the pusher 15 is acted on so that the backward stroke of the pusher 15 is different. Therefore, the model of the nail magazine component is identified by setting the pusher 15 and the induction switch 17. The induction switch 17 is arranged on the induction circuit board, and the induction circuit board is electrically connected to the control main board. The control button 13 can be pressed to trigger the control unit to perform the corresponding operation only after the induction switch 17 recognizes the nail magazine component, that is, the control unit can trigger the opening of the control button 13 only after receiving the signal that the induction switch 17 recognizes the nail magazine component. When the control unit does not receive the signal that the induction switch 17 recognizes the nail magazine component, the control button 13 is not turned on, that is, the electric stapler cannot be started to perform the corresponding operation when the control button 13 is pressed. The specific structure of the nail magazine component is not described and limited in detail, which is an existing conventional structure and is not an innovative point of the embodiment of the present invention.

[0050] According to some preferred embodiments of the present invention, Figure 2 and Figure 6As shown, a first housing 16 and a second housing 14 are sequentially provided between the plug-in end 12 and the handle end 11. The first housing 16 abuts against the rear end of the plug-in end 12 and is provided with an unloading switch for unloading the nail magazine assembly. As for the unloading switch, it is an existing conventional sliding button type unloading structure, and the specific structure and working principle are not described and limited. It is not an innovative point of the present invention, and it is easy for a person skilled in the art to know and implement it. It should be noted that when the nail magazine assembly is rotated and plugged into the plug-in end 12, it will act on the first housing 16 to push the first housing 16 back. The pusher 15 is provided in the second housing 14, and the pusher 15 includes a body 151 and a biasing member 152. The front end of the body 151 is provided with an abutting portion that always abuts against the rear end of the first housing 16. The rear end of the body 151 is a sensing end 1512 adapted to the sensing switch 17. A slideway 141 is provided in the second housing 14 for the body 151 to slide, and a first limiting portion 142 is provided at one end of the slideway 141 close to the first housing 16, and a second limiting portion 143 is provided at one end away from the first housing 16. When the pusher 15 is in the initial position, the first limiting portion 142 can abut against a convex wall 1513 close to the abutting portion of the body 151. One end of the biasing member 152 abuts against one end of the body 151 close to the abutting portion, and the other end abuts against the second limiting portion 143. The biasing member 152 applies a biasing force to the pusher 15 to make the pusher 15 tend to move toward the first housing 16. After the nail magazine assembly is unloaded from the device body 1, the pusher 15 can be reset under the action of the biasing member 152, so as to facilitate the insertion of the nail magazine assembly when it is used next time, and can be identified again through the movement of the pusher 15 and the induction of the induction switch 17. It should be noted that, in the embodiment of the present invention, the second housing 14 is composed of two halves assembled and fixed in position, and the first housing 16 is conical and can be moved by the driving force of the insertion of the nail magazine assembly. In addition, a rotating cylinder is also provided on the outer periphery of the first housing 16 and the second housing 14 to control the rotation of the nail magazine assembly. A knob is also provided on the rotating cylinder to control the direction of the nail magazine assembly. The specific structure and working principle are not described or limited, which are prior art, not the innovation of the present invention, and are known and easily realized by those skilled in the art.

[0051] According to some preferred embodiments of the present invention, Figure 4 As shown, the body 151 has a recessed portion along its thickness direction. Figure 4 The push member 15 is concave downward and extends along the sliding direction of the push member 15, that is, the length direction of the push member 15 or as shown in FIG. Figure 3 The mounting groove 1514 extending in the left-right direction as shown, the portion of the mounting groove 1514 near the second limiting portion 143 penetrates the surface of the body 151 in the thickness direction, that is, Figure 3 The front and rear surfaces shown or Figure 4The upper and lower surfaces shown form an avoidance slide 1515, and the avoidance slide 1515 extends along the moving direction of the pusher 15. The second limit portion 143 extends into the avoidance slide 1515. When the nail magazine assembly is rotated and inserted into the plug end 12, the first housing 16 is pushed backward, thereby causing the pusher 15 to move backward and compress the biasing member 152, and the second limit portion 143 moves forward relative to the pusher 15, that is, moves forward relative to the pusher 15 in the avoidance slide 1515 (in fact, the second limit portion 143 is fixed, and only the pusher 15 slides in the second housing 14).

[0052] According to some preferred embodiments of the present invention, Figure 5 As shown, the first limiting portion 142 is an L-shaped stopper symmetrically arranged at intervals on the upper and lower sides of the slideway 141. Figure 3 As shown, the left upper and lower ends of the front end surface of the main body 151 have a concave portion that is recessed backward and extends rightward, and the right end wall of the concave portion constitutes a convex wall 1513 that abuts against the first limiting portion 142 in the initial position.

[0053] According to some preferred embodiments of the present invention, Figure 5 As shown, the second limiting portion 143 is a limiting block provided on the inner side wall of the second housing 14 and protruding and extending radially inward.

[0054] According to some preferred embodiments of the present invention, Figure 5 As shown, behind the limit block is Figure 5 The right end shown in the figure has a through hole 144 connected to the slideway 141, and the sensing end 1512 of the pusher 15 can extend through the through hole 144 into the notch 145 opened on the side wall behind the corresponding through hole 144 of the second shell 14. The notch 145 is connected to the through hole 144 and the position above the notch 145 is used to install the sensing circuit board and the sensing switch 17. Optionally, the sensing switch 17 is a conventional photoelectric switch. There are multiple photoelectric switches, such as Figure 7 The three photoelectric switches shown are arranged at intervals along the moving stroke direction of the pusher 15, and correspond to nail magazine components of a stroke respectively. Figure 4 As shown, six notches 1516 are arranged at intervals along the moving stroke direction of the pusher 15 .

[0055] According to some preferred embodiments of the present invention, Figure 8As shown, in order to realize the automatic operation of the electric stapler, a travel switch 18 is further provided in the body 1. Specifically, the travel switch 18 includes a zero-position travel switch (corresponding to the initial state position of the nail magazine assembly), a closed travel switch (corresponding to the movement travel of the nail magazine or the nail anvil head of the nail magazine assembly) and a nail magazine travel switch (corresponding to the movement travel of the nail pusher in the nail magazine). The control button 13 includes a firing button, a reset switch button 133 and a safety switch button 131. Correspondingly, the electric stapler of the embodiment of the present invention also includes conventional structures such as a firing mechanism and a closing mechanism. The specific structure and working principle are not described or limited here. Those skilled in the art are aware of and can easily implement them, and they are not the innovation points of the embodiment of the present invention. Fig. 9 As shown, during the use of the electric stapler device of the embodiment of the present invention, the following steps are performed:

[0056] The sensing mechanism identifies the nail magazine assembly;

[0057] Press the firing button, the zero position travel switch is disconnected, the firing to closed position travel switch is disconnected, and the red indicator light is on;

[0058] Press the safety switch, and the red indicator light turns green;

[0059] Short press the firing button to fire, release the firing button to stop firing, and fire until the nail magazine travel switch is disconnected;

[0060] Release the firing button, and the travel switch automatically returns to the zero position and turns on;

[0061] The safety switch is reset and there is no response when pressed again;

[0062] Remove the nail magazine;

[0063] The sensing mechanism recognizes the initial position and the safety switch can be used.

[0064] As an alternative embodiment, when the safety switch is pressed and the red indicator light turns green, the operation mode of "pressing and holding the firing button and firing until the nail magazine travel switch is disconnected" is adopted, and the remaining steps are consistent with the above. It should be noted that during the firing operation, the driving motor rotates forward or reversely, and during the reset operation, the driving motor rotates in the opposite direction, that is, reverse or forward. There is no specific limitation, which is the prior art and is not the innovation of the embodiment of the present invention.

[0065] According to some preferred embodiments of the present invention, Fig. 9 As shown, if the sensing mechanism fails to identify the stapler magazine assembly, all control buttons 13 are pressed without response, and the electric stapler device does not work.

[0066] According to some preferred embodiments of the present invention, Fig. 9As shown, if the firing button is long pressed to fire until the closed travel switch is not disconnected or a bad or unsuitable firing situation is encountered, the reset switch button 133 is pressed, the red indicator light goes out, the closed travel switch is turned on, and the reset to zero position travel switch is disconnected.

[0067] According to some preferred embodiments of the present invention, Fig. 9 As shown, after pressing the safety switch, if there is no response when pressing the firing button or a bad or unsuitable firing situation is encountered, press the reset switch, the red indicator light goes out, the closed travel switch is turned on, and the reset to zero position travel switch is turned on.

[0068] The electric stapler device of the embodiment of the present invention recognizes the specifications and models of the nail magazine assembly on the connector body 1 according to the moving stroke through the sensing mechanism composed of the pusher 15 triggered by the plug-in end 12 of the nail magazine assembly rotating and inserted into the body 1 and the sensing switch 17 sensing the moving stroke of the pusher 15, so as to achieve the same body 1 to adapt to multiple nail magazine assemblies. It should be noted that the control unit has built-in relevant data of the specifications and models of the existing conventional nail magazine assembly and the corresponding insertion stroke of the body 1. Although there are staplers in the prior art that adapt the same body to multiple nail magazine assemblies of different specifications, it does not solve the problem that the body recognizes the models and specifications of different nail magazine assemblies and performs corresponding operations after recognition. The electric stapler of the embodiment of the present invention can only be turned on after the sensing mechanism recognizes the nail magazine assembly, otherwise it will not be turned on. Not only can the same body recognize nail magazine assemblies of different models and specifications, i.e., strokes, but also the safety and automation of the use of the electric stapler can be guaranteed.

[0069] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. An electric stapler device for surgery, comprising a stapler body and a stapler magazine assembly, characterized in that: The body of the device includes a handle end and a plug end, and a plurality of nail magazine assemblies with different strokes can be selectively rotatably plugged into the plug end. A driving motor and a control unit for controlling the driving motor are provided in the handle end. A control button electrically connected to the control unit is also provided on the handle end. The electric stapler device also includes: The sensing mechanism is arranged in the body and between the handle end and the plug end, and includes a pusher movably arranged in the body and a plurality of sensing switches for sensing the moving stroke of the pusher and arranged at intervals on the moving path of the pusher. The pusher retreats toward the handle end under the driving force when the nail magazine assembly is inserted into the body, and moves forward toward the plug end to reset when the nail magazine assembly is removed; The control button can be pressed to trigger the control unit to perform a corresponding operation only after the induction switch recognizes the nail magazine assembly, and has no effect when pressed when the induction switch does not recognize the nail magazine assembly; A first shell and a second shell are provided in sequence between the plug end and the handle end; The first housing abuts against the rear end of the plug-in end and is provided with an unloading switch for unloading the nail magazine assembly, and the first housing can be moved by the driving force of the nail magazine assembly rotating and inserting into the plug-in end; The second housing is fixedly disposed between the handle end and the plug end, the pushing member is disposed in the second housing, the pushing member comprises a body and a biasing member, the front end of the body is provided with an abutting portion that always abuts against the rear end of the first housing, and the rear end of the body is a sensing end adapted to the sensing switch; A slideway for the body to slide is provided in the second shell, and a first limiting portion is provided at one end of the slideway close to the first shell, and a second limiting portion is provided at one end away from the first shell. When the pusher is in the initial position, the first limiting portion can abut against a convex wall of the body close to the abutting portion. One end of the biasing member abuts against one end of the body close to the abutting portion, and the other end abuts against the second limiting portion, and the biasing member applies a biasing force to the pushing member so that the pushing member tends to move toward the first housing; The main body is provided with a mounting groove which is concave in the thickness direction thereof and extends in the sliding direction of the pusher, and a portion of the mounting groove close to the second limiting portion penetrates through the surface of the main body in the thickness direction to form an avoidance slide groove, and the avoidance slide groove extends in the moving direction of the pusher; The second limiting portion extends into the avoidance sliding groove.

2. The surgical electric stapler device according to claim 1, characterized in that: The first limiting portion is an L-shaped stopper symmetrically and spaced apart on the upper and lower sides of the slideway; The second limiting portion is a limiting block provided on the inner side wall of the second shell and protruding and extending radially inward.

3. The surgical electric stapler device according to any one of claims 1 to 2, characterized in that: The second housing has a through hole communicating with the slideway at the rear of the second limiting portion, and a notch communicating with the through hole is formed on the side wall at the rear of the through hole; The sensing end of the pushing member can extend into the notch through the through hole, and the sensing switch is arranged above the notch.

4. The surgical electric stapler device according to claim 1, characterized in that: The induction switch is a photoelectric switch, and a plurality of notches are arranged at intervals along the moving direction of the pusher on the induction end.

5. The surgical electric stapler device according to claim 1, characterized in that: The body of the device is also provided with a zero position travel switch, a closing travel switch and a nail magazine travel switch; The control buttons include a firing button, a reset switch button and a safety switch button; During use, the electric stapler device performs the following steps: The sensing mechanism identifies the nail magazine assembly; Press the firing button, the zero position travel switch is disconnected, the firing to closing travel switch is disconnected, the red indicator light is on, and the firing button is invalid at this time; Press the safety switch, the red indicator light turns green, and the firing button can be used normally; Press the firing button shortly to fire, release the firing button to stop firing, and fire until the nail magazine travel switch is disconnected; or press the firing button long to fire until the nail magazine travel switch is disconnected; Release the firing button, and the travel switch automatically returns to the zero position and turns on; The safety switch is reset and there is no response when pressed again; Remove the nail magazine; The sensing mechanism recognizes the initial position and the safety switch can be used.

6. The surgical electric stapler device according to claim 5, characterized in that: If the sensing mechanism fails to identify the stapler magazine assembly, all control buttons are pressed without response, and the electric stapler device does not work.

7. The surgical electric stapler device according to claim 5, characterized in that: If the firing button is pressed to fire until the closed stroke switch is disconnected, and a bad or inappropriate firing situation is encountered, press the reset switch button, the red indicator light goes out, the closed stroke switch is turned on, and the reset to zero position stroke switch is turned on.

8. The surgical electric stapler device according to claim 5, characterized in that: After pressing the safety switch, if there is no response when pressing the firing button or a bad or unsuitable firing situation is encountered, press the reset switch, the red indicator light goes out, the closed travel switch is turned on, and the reset to zero position travel switch is turned on.