Automatic identification unit and electric endoscope anastomat

Abstract

The utility model discloses an automatic identification unit and electric endoscopic anastomat, electric endoscopic anastomat includes body casing, swivel head, gun barrel and anastomat subassembly, swivel head is connected with body casing front end, gun barrel subassembly rear end is connected with swivel head, gun barrel subassembly front end is used for connecting anastomat subassembly, gun barrel subassembly rear end is used for connecting anastomat subassembly, gun barrel subassembly rear end is used for connecting anastomat subassembly, gun barrel subassembly rear end is used for connecting anastomat subassembly. A control circuit board and a conducting ring are arranged in the device body shell, a conducting elastic piece is arranged in the rotating head, a contact is arranged at the front end of the gun barrel, and an automatic recognition unit which is formed by communicating the control circuit board, the conducting ring, the conducting elastic piece, the contact, a resistance element and a wire and can recognize the type of an anastomat assembly is arranged in the electric endoscope anastomat. By means of the mode, the model number inserted into the anastomat assembly can be automatically recognized, the anastomosis distance can be controlled, recognition and connection can be rapidly and accurately completed when the anastomat assembly is replaced, and it is guaranteed that an operation is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of medical staplers, in particular to an automatic identification unit and an electric laparoscope stapler. Background Art

[0002] Laparoscopic staplers are an important medical device, primarily used for tissue severing or anastomosis during minimally invasive surgery. They offer simple operation, minimal trauma, and rapid postoperative recovery. With the continuous advancement of medical technology, laparoscopic staplers are also evolving. Modern laparoscopic staplers are typically equipped with a variety of stapler components to accommodate diverse surgical needs.

[0003] Currently, laparoscopic staplers have the following defects when identifying stapler components:

[0004] Some laparoscopic staplers still use a mechanical recognition mechanism to identify the inserted stapler assembly model. This method relies on the depth of the gun rod inserted into the interface or contact at a specific position. However, this recognition method may be affected by factors such as manufacturing tolerances or accumulated wear, resulting in reduced recognition accuracy.

[0005] Some laparoscopic staplers use automatic recognition systems, but the current automatic recognition systems are easily affected by factors such as signal interference and sensor aging, resulting in reduced recognition accuracy. This restricts users in selecting stapler components, causing the stapler to malfunction or produce erroneous operations, posing a threat to the patient's surgical safety and increasing surgical risks. Utility Model Content

[0006] The main technical problem solved by the present invention is to provide an automatic identification unit and an electric laparoscopic stapler, which can automatically identify the model of the inserted stapler assembly and control the anastomosis distance by utilizing the stability, predictability and high precision of the resistance parameters. When the doctor replaces the stapler assembly, he can quickly and accurately complete the identification and connection, thereby ensuring the safety and reliability of the operation.

[0007] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide an automatic identification unit, including: a control circuit board, a conductive element, a conductive spring, a contact and a resistance element.

[0008] The control circuit board is electrically connected to the conductive element through a wire, one end of the conductive spring is in contact with the conductive element, and the other end of the conductive spring is electrically connected to the contact through a wire. The contact is configured to complete the electrical connection when in contact with the resistor element, so that the resistor element, contact, wire, conductive spring, conductive element and control circuit board form a control loop.

[0009] In a preferred embodiment of the present invention, the conductive element is a conductive ring, and two conductive rings are provided, namely conductive ring 1 and conductive ring 2. The inner diameter of conductive ring 1 is set to be larger than the inner diameter of conductive ring 2.

[0010] In a preferred embodiment of the present invention, the conductive ring 1 has an extended terminal 1, and the conductive ring 2 has an extended terminal 2. The extended terminal 1 is electrically connected to one end of the control circuit board through a wire, and the extended terminal 2 is electrically connected to the other end of the control circuit board through a wire.

[0011] In a preferred embodiment of the present invention, two conductive springs are provided, namely, conductive spring one and conductive spring two.

[0012] The conductive spring piece 1 has a fixing portion 1 and a conductive elastic foot 1, and the conductive elastic foot 1 is in contact with the conductive ring 1; the conductive spring piece 2 has a fixing portion 2 and a conductive elastic foot 2, and the conductive elastic foot 2 is in contact with the conductive ring 2.

[0013] In a preferred embodiment of the present invention, the conductive spring piece 1 is arranged in a straight plate shape, the conductive spring piece 2 is arranged in a stepped plate shape, and the conductive spring foot 2 is arranged to avoid the conductive ring 1 and then contact and connect with the conductive ring 2.

[0014] In a preferred embodiment of the present invention, there are two contacts, namely contact 1 and contact 2. Contact 1 is electrically connected to fixed portion 1 of conductive spring 1 through a wire, and contact 2 is electrically connected to fixed portion 2 of conductive spring 2 through a wire.

[0015] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide an electric laparoscopic stapler, including: a body shell, a rotating head, a barrel assembly and a stapler assembly, the rotating head is rotatably connected to the front end of the body shell, the rear end of the barrel assembly is connected to the rotating head, the front end of the barrel assembly is used to connect to the stapler assembly, and also includes the automatic identification unit.

[0016] In a preferred embodiment of the present invention, the contact is provided at the distal end of the barrel assembly, and the resistor element is provided at the proximal end of the stapler assembly.

[0017] After the stapler assembly is inserted into the barrel assembly, the contacts are subjected to pressure from the stapler assembly and maintain contact with the resistor element. The resistor element, contacts, wires, conductive springs, conductive rings and control circuit board form a control loop. The parameter information of the resistor element is transmitted to the control circuit board through the control loop. The control circuit board can automatically determine the model of the stapler assembly based on the resistance parameter information.

[0018] In a preferred embodiment of the present invention, the stapler assembly includes a stapler seat, a staple cartridge assembly and a staple magazine base. The proximal ends of the stapler seat and the proximal ends of the staple magazine base are connected to the distal end of the barrel assembly and can move relative to each other to perform closing and opening actions. The staple cartridge assembly is detachably placed in the staple magazine base, and is characterized in that:

[0019] The resistor element is arranged at the proximal end of the nail magazine assembly, and the contact point is arranged at the proximal end of the nail magazine base.

[0020] After the nail magazine assembly is inserted into the nail magazine base, the contacts are subjected to pressure from the nail magazine assembly and maintain contact with the resistor element. The resistor element, contacts, wires, conductive springs, conductive rings and control circuit board form a control loop. The parameter information of the resistor element is transmitted to the control circuit board through the control loop. The control circuit board can automatically determine the model of the nail magazine assembly based on the resistance parameter information.

[0021] In a preferred embodiment of the present invention, the resistance parameter may be resistance value, resistance power or resistance accuracy.

[0022] The beneficial effects of the utility model are:

[0023] The resistance value is used to distinguish different stapler assemblies, and the resistance value signal is used as a control signal to instruct the control circuit board how to distinguish the stapler assembly model and control the different advance distances of the cutting knife;

[0024] The resistance value is stable within the normal operating range, which can ensure the reliability, predictability and high accuracy of signal transmission, and the forward distance of the cutting knife controlled by the control circuit board is also more accurate;

[0025] By automatically identifying the model of the inserted stapler assembly, doctors can quickly and accurately complete identification and connection when replacing the stapler assembly, ensuring the safety and reliability of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0027] Figure 1 This is a structural diagram of a preferred embodiment of the electric laparoscopic stapler of the utility model;

[0028] Figure 2 This is a structural diagram of a preferred embodiment of the utility model in which the resistor element of the electric laparoscopic stapler is arranged in the stapler assembly;

[0029] Figure 3 This is a structural diagram of a preferred embodiment of the automatic identification unit of the utility model;

[0030] Figure 4 This is a structural diagram of a preferred embodiment of the conductive ring of the automatic identification unit of the utility model;

[0031] Figure 5 This is a structural diagram of a preferred embodiment of the conductive spring of the automatic identification unit of the utility model;

[0032] Figure 6 This is a structural diagram of a preferred embodiment of the utility model for automatically identifying contacts of an electric laparoscopic stapler assembly;

[0033] Figure 7 This is a structural diagram of a preferred embodiment of the electric laparoscopic stapler body shell of the utility model;

[0034] Figure 8 This is a structural diagram of a preferred embodiment of the electric laparoscopic stapler body shell for automatically identifying the stapler assembly of the utility model;

[0035] Figure 9 This is a structural diagram of a preferred embodiment of the utility model in which the resistance element of the electric laparoscopic stapler is arranged in the staple cartridge assembly;

[0036] Figure 10 This is a structural diagram of the corresponding contact positions when the resistor element of the utility model is arranged in the nail magazine assembly;

[0037] Figure 11 yes Figure 10 A partial enlarged view of middle A;

[0038] The markings of the components in the accompanying drawings are as follows:

[0039] 1. Body shell, 11. Terminal limit slot, 2. Rotating head, 21. Slot, 3. Barrel assembly, 4. Stapler assembly, 41. Anvil, 42. Nail magazine assembly, 43. Nail magazine base, 5. Control circuit board,

[0040] 6. Conductive ring, 61. Conductive ring 1, 62. Conductive ring 2, 63. Extension terminal 1, 64. Extension terminal 2,

[0041] 7. Conductive spring, 71. Conductive spring 1, 72. Conductive spring 2, 73. Fixed part 1, 74. Conductive spring foot 1, 75. Fixed part 2, 76. Conductive spring foot 2,

[0042] 8. Contact, 81. Contact one, 82. Contact two, 9. Resistor, 10. Wire. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0045] The utility model relates to a preferred embodiment of an electric laparoscopic stapler.

[0046] like Figure 1 As shown, the electric laparoscopic stapler includes: a body shell 1, a rotating head 2, a barrel assembly 3 and a stapler assembly 4. The rotating head 2 is rotatably connected to the front end of the body shell 1, the rear end of the barrel assembly 3 is connected to the rotating head 2, and the front end of the barrel assembly 3 is used to connect to the stapler assembly 4.

[0047] like Figure 2 As shown, the electric laparoscopic stapler also includes an automatic identification unit capable of identifying the model of the stapler assembly 4, and the automatic identification unit includes a control circuit board 5, a conductive element, a conductive spring 7, a contact 8 and a resistance element 9 that can form a control loop.

[0048] like Figure 3 As shown, the control circuit board 5 is electrically connected to the conductive element through a wire 10, one end of the conductive spring 7 is in contact with the conductive element, and the other end of the conductive spring 7 is electrically connected to the contact 8 through the wire 10, and the contact 8 is configured to complete the electrical connection when in contact with the resistor element 9, so that the resistor element 9, the contact 8, the wire 10, the conductive spring 7, the conductive element and the control circuit board 5 form a control loop, and the control circuit board 5 can identify the model of the anastomosis assembly 4 based on the electrical signal generated by the control loop.

[0049] The conductive element can form a loop to connect the automatic identification unit, thereby meeting the transmission and collection of control signals. There are various types of conductive elements. In the present invention, the conductive element is preferably a conductive ring 6.

[0050] First, if Figure 2-4As shown, two conductive rings 6 are arranged coaxially with the rotating head 2 in the internal cavity of the body shell 1, namely conductive ring 1 61 and conductive ring 2 62. The inner diameter of conductive ring 1 61 is set to be larger than the inner diameter of conductive ring 2 62.

[0051] The conductive ring 1 61 has an extension terminal 1 63 , and the conductive ring 2 62 has an extension terminal 2 64 . The extension terminal 1 63 is electrically connected to one end of the control circuit board 5 through the wire 10 , and the extension terminal 2 64 is electrically connected to the other end of the control circuit board 5 through the wire 10 .

[0052] Furthermore, the inner wall of the body shell 1 has a terminal limiting groove 11 capable of accommodating the extension terminal 1 63 and the extension terminal 2 64, as shown in FIG. Figure 7 As shown, the terminal limiting groove 11 can tightly accommodate the two extended terminals, thereby ensuring the stable position of the two conductive rings 6 and ensuring that the conductive rings 6 maintain stable contact with the conductive spring 7, thereby ensuring stable transmission of the control circuit electrical signal.

[0053] Secondly, if Figure 2 、 Figure 3 and Figure 5 As shown, the rotating head 2 has two conductive springs 7 inside, namely conductive spring 1 71 and conductive spring 2 72. The conductive spring 1 71 has a fixing portion 1 73 and a conductive spring foot 1 74. The conductive spring 2 72 has a fixing portion 2 75 and a conductive spring foot 2 76. The conductive spring foot 1 74 is electrically connected to the conductive ring 1 61, and the conductive spring foot 2 76 is electrically connected to the conductive ring 2 62.

[0054] Furthermore, the fixing portion 1 73 and the fixing portion 2 75 are respectively inserted into the slots 21 on both sides of the inner wall of the housing of the rotating head 2, as shown in FIG. Figure 8 As shown, the positions of the two conductive springs are ensured to be stable, and the conductive springs are ensured to be in stable contact with the conductive ring.

[0055] Preferably, the conductive spring piece 1 71 is arranged in a straight plate shape, the conductive spring piece 2 72 is arranged in a stepped plate shape, and the conductive spring foot 2 76 is arranged to avoid the conductive ring 1 61 and then be electrically connected to the conductive ring 2 62 .

[0056] The conductive spring piece 1 71 and the conductive ring 1 61 always keep in contact during the rotation of the rotary head, and the conductive spring piece 2 72 and the conductive ring 2 62 always keep in contact during the rotation of the rotary head, so as to ensure the stability and reliability of the control loop connection.

[0057] Furthermore, if Figure 6As shown, there are two contacts 8, namely contact 1 81 and contact 2 82. The contact 1 81 is electrically connected to the fixing portion 1 73 of the conductive spring 1 71 through the wire 10, and the contact 2 82 is electrically connected to the fixing portion 2 75 of the conductive spring 2 72 through the wire 10.

[0058] The utility model relates to resistor elements with different parameters. The control circuit board can judge the type of the stapler component by identifying the resistor parameters, thereby realizing automatic identification and insertion of the stapler component.

[0059] The resistance parameter may be resistance value, resistance power or resistance accuracy.

[0060] Preferably, the resistance parameter is the resistance value. Different models of stapler assemblies are equipped with resistance elements with different resistance values. Due to the different resistance values, the loop electrical signals generated by the control circuit are also different. The control circuit board can identify different stapler assemblies by monitoring and collecting different loop electrical signals, and then control the cutting knife in the barrel assembly to advance different distances to achieve staplers of different distances.

[0061] like Figure 2 As shown, in an exemplary embodiment, the contact 8 is provided at the distal end of the barrel assembly 3, and the resistor element 9 is provided at the proximal end of the stapler assembly 4:

[0062] After the stapler assembly 4 is inserted into the barrel assembly 3, the contact 8 is subjected to the pressure of the stapler assembly 4 and maintains contact with the resistor element 9, so that the resistor element 9, the contact 8, the wire 10, the conductive spring 7, the conductive ring 6 and the control circuit board 5 form a control loop. The parameter information of the resistor element 9 is transmitted to the control circuit board 5 through the control loop, and the control circuit board 5 can automatically determine the model of the stapler assembly 4 based on the resistance parameter information.

[0063] The control loop formed by the automatic identification unit of the utility model is configured to generate different loop electrical signals according to different resistance parameters, and the control circuit board can identify different anastomosis device assembly models by monitoring and collecting different loop electrical signals.

[0064] The identification method based on the above-mentioned electric laparoscopic stapler includes the following steps:

[0065] S1, after the stapler assembly 4 is inserted into the barrel assembly 3, the contact 8, under pressure from the stapler assembly 4, maintains contact with the resistor 9, so that the resistor 9, contact 8, wire 10, conductive spring 7, conductive ring 6, and control circuit board 5 are connected inside the body shell 1, forming a control circuit capable of generating an electrical signal;

[0066] S2, analyzing the electrical signal generated by the control circuit. Different types of stapler assemblies trigger different electrical signals generated by the control circuit when inserted. The control circuit board 5 can identify different resistance parameters based on the different circuit electrical signals.

[0067] S3, the control circuit board 5 determines the model of the stapler assembly 4 based on the identified resistance parameter, identifies the anastomosis lengths of different stapler cartridge assemblies, collects different anastomosis length information, and generates different control instructions accordingly to control the cutting blade in the barrel assembly 3 to advance different distances, thereby achieving anastomosis of different lengths.

[0068] Furthermore, the stapler assembly 4 includes a stapler seat 41, a staple magazine assembly 42 and a staple magazine base 43. The proximal ends of the stapler seat 41 and the proximal ends of the staple magazine base 43 are connected to the distal end of the barrel assembly 3 and can move relative to each other to perform closing and opening actions. The staple magazine assembly 42 can be detachably placed in the staple magazine base 43.

[0069] like Figure 9-11 As shown, in another exemplary embodiment, the resistor element 9 is provided at the proximal end of the cartridge assembly 42, and the contact 8 is provided at the proximal end of the cartridge base 43:

[0070] After the nail magazine assembly 42 is inserted into the nail magazine base 43, the contact 8 is subjected to the pressure of the nail magazine assembly 42 and maintains contact with the resistor element 9, so that the resistor element 9, contact 8, wire, conductive spring 7, conductive ring 6 and control circuit board 5 form a control loop, and the parameter information of the resistor element 9 is transmitted to the control circuit board 5 through the control loop. The control circuit board 5 can automatically determine the model of the nail magazine assembly 42 based on the resistance parameter information.

[0071] The control loop formed by the automatic identification unit of the utility model is configured to generate different loop electrical signals according to different resistance parameters, and the control circuit board can identify different nail magazine component models by monitoring and collecting different loop electrical signals.

[0072] The identification method based on the above-mentioned electric laparoscopic stapler includes the following steps:

[0073] S1, after the staple cartridge assembly 42 is inserted into the staple magazine base 43, the contact 8 is pressed by the staple cartridge assembly 42 and maintains contact with the resistor 9, so that the resistor 9, the contact 8, the wire 10, the conductive spring 7, the conductive ring 6 and the control circuit board 5 are connected inside the body shell 1, forming a control circuit capable of generating an electrical signal;

[0074] S2, analyzing the electrical signals generated by the control circuit. When different types of staple cartridge assemblies are inserted into the magazine base, the control circuit triggers different electrical signals. The control circuit board 5 can identify different resistance parameters based on the different circuit electrical signals.

[0075] S3, the control circuit board 5 determines the model of the staple cartridge assembly 42 based on the identified resistance parameter, identifies the anastomosis lengths of different staple cartridge assemblies, collects different anastomosis length information, and generates different control instructions accordingly to control the cutting blade in the barrel assembly 3 to advance different distances to achieve anastomosis of different distances.

[0076] In the present invention, the control circuit board preferentially collects the resistance information of the resistor element to distinguish different stapler assemblies or staple magazine assemblies, and the resistance signal of the resistor is used as an identification signal. This is because the resistance value of the resistor is stable within the normal working range, which can ensure the reliability of signal transmission. This means that it has a high degree of accuracy and predictability when used as an identification signal, and is more accurate in indicating that the control circuit board controls the forward distance of the cutting knife in the barrel assembly.

[0077] In actual application, the stapler assembly 4 includes at least three staple magazine assemblies with different anastomosis lengths, namely staple magazine assembly 1, staple magazine assembly 2 and staple magazine assembly 3. Different staple magazine assemblies have different anastomosis lengths and correspond to different resistance values.

[0078] Preferably, the mating lengths of the three staple cartridge assemblies are 30 mm, 45 mm, and 60 mm, respectively, and the corresponding resistance values ​​are 1 KΩ, 2 KΩ, and 3.01 KΩ, respectively. The resistance value ranges recognized by the control circuit board are 0.8-1.2 KΩ, 1.8-2.2 KΩ, and 2.8-3.2 KΩ, respectively.

[0079] Table 1: Taking the resistance parameter as an example, the resistance recognition range and nail magazine matching length corresponding to different resistance values ​​are as follows:

[0080] From this we can see that:

[0081] When the resistance value range identified by the control circuit board is 0.8-1.2 KΩ, the resistance value of the corresponding resistor element is 1 KΩ, thereby determining that the staple cartridge assembly inside the stapler assembly has a staple length of 30 mm, and the control circuit board generates a control instruction to control the cutting blade to advance 30 mm;

[0082] When the resistance value range identified by the control circuit board is 1.8-2.2 KΩ, the resistance value of the corresponding resistor element is 21 KΩ, thereby determining that the staple cartridge assembly inside the stapler assembly has a staple length of 45 mm. The control circuit board generates a control instruction to control the cutting blade to advance 45 mm.

[0083] When the resistance range recognized by the control circuit board is 2.8-3.2 KΩ, the resistance of the corresponding resistor element is 3.01 KΩ, thereby judging that the anastomosis length of the stapler assembly inside the stapler assembly is 60 mm. The control circuit board generates a control instruction to control the cutting knife to advance 60 mm.

[0084] The beneficial effects of the automatic identification unit and the electric laparoscopic stapler of the utility model are:

[0085] The resistance value is used to distinguish different stapler assemblies, and the resistance value signal is used as a control signal to instruct the control circuit board how to distinguish the stapler assembly model and control the different advance distances of the cutting knife;

[0086] The resistance value is stable within the normal operating range, which can ensure the reliability, predictability and high accuracy of signal transmission, and the forward distance of the cutting knife controlled by the control circuit board is also more accurate;

[0087] By automatically identifying the model of the inserted stapler assembly, doctors can quickly and accurately complete identification and connection when replacing the stapler assembly, ensuring the safety and reliability of the operation.

[0088] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic identification unit, characterized in that: include: Control circuit board, conductive elements, conductive springs, contacts and resistor elements, The control circuit board is electrically connected to the conductive element through a wire, one end of the conductive spring is in contact with the conductive element, and the other end of the conductive spring is electrically connected to the contact through a wire. The contact is configured to complete the electrical connection when in contact with the resistor element, so that the resistor element, contact, wire, conductive spring, conductive element and control circuit board form a control loop.

2. The automatic identification unit according to claim 1, characterized in that The conductive element is a conductive ring. Two conductive rings are provided, namely conductive ring 1 and conductive ring 2. The inner diameter of conductive ring 1 is set to be larger than the inner diameter of conductive ring 2.

3. The automatic identification unit according to claim 2, characterized in that The conductive ring 1 has an extended terminal 1, and the conductive ring 2 has an extended terminal 2. The extended terminal 1 is electrically connected to one end of the control circuit board through a wire, and the extended terminal 2 is electrically connected to the other end of the control circuit board through a wire.

4. The automatic identification unit according to claim 1, characterized in that There are two conductive springs, namely conductive spring one and conductive spring two: conductive spring one has a fixed part one and a conductive spring foot one, and conductive spring foot one maintains contact and connection with conductive ring one; conductive spring two has a fixed part two and a conductive spring foot two, and conductive spring foot two maintains contact and connection with conductive ring two.

5. The automatic identification unit according to claim 4, characterized in that The conductive spring piece 1 is arranged in a straight plate shape, the conductive spring piece 2 is arranged in a stepped plate shape, and the conductive spring foot 2 is arranged to avoid the conductive ring 1 and then contact and connect with the conductive ring 2.

6. The automatic identification unit according to claim 4, characterized in that There are two contacts, contact 1 and contact 2. Contact 1 is electrically connected to the first fixing portion of the first conductive elastic sheet through a wire, and contact 2 is electrically connected to the second fixing portion of the second conductive elastic sheet through a wire.

7. An electric laparoscopic stapler, comprising: The device comprises a body shell, a rotating head, a barrel assembly and a stapler assembly, wherein the rotating head is rotatably connected to the front end of the body shell, the rear end of the barrel assembly is connected to the rotating head, and the front end of the barrel assembly is used to connect to the stapler assembly, and is characterized in that it also includes an automatic identification unit as described in any one of claims 1 to 6.

8. The electric laparoscopic stapler according to claim 7, characterized in that: The contact is arranged at the distal end of the barrel assembly, and the resistor element is arranged at the proximal end of the stapler assembly. After the stapler assembly is inserted into the barrel assembly, the contacts are subjected to pressure from the stapler assembly and maintain contact with the resistor element. The resistor element, contacts, wires, conductive springs, conductive rings and control circuit board form a control loop. The parameter information of the resistor element is transmitted to the control circuit board through the control loop. The control circuit board can automatically determine the model of the stapler assembly based on the resistance parameter information.

9. The electric laparoscopic stapler according to claim 8, characterized in that: The stapler assembly includes a stapler seat, a staple cartridge assembly and a staple magazine base. The proximal ends of the stapler seat and the staple magazine base are both connected to the distal end of the barrel assembly and can move relative to each other to perform closing and opening actions. The staple cartridge assembly is detachably placed in the staple magazine base. The resistor element is arranged at the proximal end of the nail magazine assembly, and the contact point is arranged at the proximal end of the nail magazine base. After the nail magazine assembly is inserted into the nail magazine base, the contacts are subjected to pressure from the nail magazine assembly and maintain contact with the resistor element. The resistor element, contacts, wires, conductive springs, conductive rings and control circuit board form a control loop. The parameter information of the resistor element is transmitted to the control circuit board through the control loop. The control circuit board can automatically determine the model of the nail magazine assembly based on the resistance parameter information.

10. The electric laparoscopic stapler according to claim 9, characterized in that: The resistance parameter may be resistance value, resistance power or resistance accuracy.

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