anastomat

Abstract

The application discloses an anastomat, which comprises a main body, a mounting portion arranged in the axial direction of the main body, a nail abutment assembly fixedly arranged on the main body, a nail magazine base hingedly arranged on the main body and forming a jaw with the nail abutment assembly, the mounting portion being arranged in the jaw, a nail gate assembly comprising a nail gate arranged in the jaw and a sliding block sliding along the length direction of the nail magazine, a cutting knife assembly slidingly arranged in the main body along the axial direction of the main body and arranged beside the mounting portion, a locking piece rotatably arranged on the mounting portion, a clamping device rotatably arranged on the mounting portion and abutting against the locking piece, an elastic piece arranged between the mounting portion and the locking piece, in a first state, the locking piece abutting against the cutting knife assembly, the cutting knife assembly being locked in the main body, in a second state, the locking piece being separated from the cutting knife assembly, the cutting knife assembly sliding along the axial direction of the main body towards the distal end. The locking piece prevents the cutting knife assembly from advancing, prevents the cutting knife assembly from being triggered by mistake, avoids the human body tissue from being cut and unable to be sutured, and improves the safety of the anastomat.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a stapler that cannot be fired without staples. Background Technology

[0002] A stapler typically consists of two parts: the main body and the clip assembly. The main body is the actuating mechanism, performing operations such as clamping tissue, firing to cut and anastomose, and repositioning. The clip assembly is a loadable and detachable unit that provides the staples needed for tissue anastomosis. When performing surgery using an existing stapler, if it is fired due to misoperation without the clip assembly or with a used clip assembly, it can lead to unexpected tissue cutting without suturing, causing significant bleeding in the patient.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a stapler that cannot be fired without staples. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a stapler that cannot be fired without staples.

[0005] To achieve the above objectives, an embodiment of the present invention provides the following technical solution:

[0006] An anastomosis device, the anastomosis device comprising:

[0007] The main body has an installation part along the axial direction;

[0008] An anti-pin assembly is fixedly installed on the main body;

[0009] A nail cartridge base is hinged to the main body, and a jaw is formed between the nail anchor assembly and the nail cartridge base, with the mounting part located in the jaw;

[0010] A nail gate assembly, comprising a nail gate and a slider disposed within the jaws, the slider sliding along the length direction of the nail cartridge;

[0011] A cutting blade assembly is slidably mounted in the main body along the main body axis and located beside the mounting part;

[0012] A locking element is rotatably mounted on the mounting portion along an axis parallel to the main body.

[0013] A locking device is rotatably mounted on the mounting part in a direction perpendicular to the plane of the cutting blade assembly. The locking device is at least partially located between the locking member and the nail box base and abuts against the locking member.

[0014] An elastic element is installed between the mounting part and the locking element, and the elastic element has a tendency to drive the locking element to rotate toward the locking device;

[0015] In the first state, the locking member abuts against the cutting blade assembly, and the cutting blade assembly is locked in the main body;

[0016] In the second state, the locking device overcomes the elastic force of the elastic element, the locking element separates from the cutting blade assembly, and the cutting blade assembly slides along the axial direction of the main body toward the distal end.

[0017] In one embodiment, the mounting part is provided with a mounting groove, and the locking member is rotatably mounted in the mounting groove by a fixing member. The locking member includes a rotating part rotatably mounted in the mounting groove and an abutting part that partially protrudes from the mounting groove and abuts against the cutting blade assembly.

[0018] In one embodiment, the rotating part is provided with a first mounting hole parallel to the axial direction of the main body, the near end face of the mounting groove is provided with a second mounting hole, the far end face of the mounting groove is provided with a third mounting hole, and the fixing member is sequentially disposed through the first mounting hole, the second mounting hole and the third mounting hole.

[0019] In one embodiment, the bottom end face of the mounting groove is provided with a slot, and the elastic member includes a fixing part that is engaged in the slot and abuts against the side wall of the mounting groove, a first bending part that abuts against the rotating part, and a second bending part that abuts against the abutting part. An acute angle is formed between the first bending part and the fixing part, and the angle of the acute angle in the first state is greater than the angle of the acute angle in the second state.

[0020] In one embodiment, the locking device includes a first locking plate, the first locking plate including a rotating arm extending toward the locking member, an abutting arm disposed at the distal end of the rotating arm, and a stop arm disposed at the proximal end of the rotating arm, the rotating arm being rotatably mounted on the mounting portion, and the abutting arm abutting against the locking member.

[0021] In one embodiment, the main body includes a first mounting portion and a second mounting portion located on both sides of the cutting blade assembly, the locking member includes a first locking member rotatably mounted on the first mounting portion and a second locking member rotatably mounted on the second mounting portion, and the elastic member includes a first elastic member installed between the first mounting portion and the first locking member and a second elastic member installed between the second mounting portion and the second locking member.

[0022] In one embodiment, the locking device includes a first locking plate rotatably mounted on the first mounting portion, a second locking plate rotatably mounted on the second mounting portion, and a connecting plate connecting the first locking plate and the second locking plate. The connecting plate is located between the cutting blade assembly and the anchor seat assembly. The first locking plate abuts against a first locking member, and the second locking plate abuts against a second locking member.

[0023] In one embodiment, the slider is initially located near the proximal end of the nail cartridge;

[0024] In the first state, an angle is formed between the nail box base and the nail anchor assembly, and the slider is separated from the locking device;

[0025] In the second state, the nail box base is parallel to the nail anchor assembly, and the slider and the locking device are both in contact.

[0026] In one embodiment, the slider includes a boss that pushes the locking device to rotate.

[0027] In one embodiment, the stapler further includes a reset member located between the mounting portion and the staple cartridge base.

[0028] In one embodiment, the mounting part has a first mounting groove on its surface facing the nail box base, and a mounting post extends from the first mounting groove toward the nail box base. The nail box base has a second mounting groove on its surface facing the mounting part. The first end of the reset member is mounted on the mounting post, and the second end of the reset member is mounted in the second mounting groove.

[0029] The present invention has the following beneficial effects:

[0030] This invention provides a stapler that, when a used staple cartridge assembly is installed in the stapler, prevents the cutting blade assembly from advancing by a locking element, thus preventing firing operation. This prevents accidental triggering of the stapler, avoids the accidental cutting of human tissue that cannot be sutured by the stapler, avoids causing massive bleeding in the patient, and improves the safety of the stapler. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the exploded structure of the anastomosis device in a specific embodiment of the present invention;

[0033] Figure 2 This is an exploded structural diagram of a portion of the anastomosis device in a specific embodiment of the present invention;

[0034] Figure 3 This is a side view of a portion of the anastomosis device in a first state according to a specific embodiment of the present invention;

[0035] Figure 4 This is a three-dimensional structural diagram of a portion of the anastomosis device in a first state according to a specific embodiment of the present invention;

[0036] Figure 5 This is a side view of the anastomosis device in a first state according to a specific embodiment of the present invention;

[0037] Figure 6 for Figure 5 Enlarged view of the local structure at point A;

[0038] Figure 7 This is a three-dimensional structural diagram of a portion of the stapler in a second state according to a specific embodiment of the present invention;

[0039] Figure 8 This is a side view of the anastomosis device in a second state according to a specific embodiment of the present invention;

[0040] Figure 9 for Figure 8 Enlarged view of the local structure at point B;

[0041] Figure 10 This is a schematic diagram of the structure of the cutting blade assembly in the anastomosis device sliding towards the distal end in a specific embodiment of the present invention. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0045] In the description of the embodiments of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0046] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0047] In the description of the embodiments of the present invention, it should also be noted that the terms "first," "second," etc., used herein do not specifically refer to any order or sequence, nor are they intended to limit the present case; they are merely used to distinguish components or operations described using the same technical terms.

[0048] It should be noted that, for the sake of clearer description of the structure, the term "distal end" is defined herein as the end furthest from the operator during operation, and "proximal end" as the end closest to the operator during operation. Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0050] The technical solution of the present invention will now be described with reference to the accompanying drawings.

[0051] Reference Figure 1 , Figure 4 , Figure 7 As shown, the stapler in a specific embodiment of the present invention includes:

[0052] The main body 1 has an mounting part 11 along the axial direction;

[0053] Anchor seat assembly 2 is fixedly installed on the main body 1;

[0054] The nail cartridge base 3 is hinged to the main body 1, and a jaw is formed between the nail seat assembly 2 and the nail cartridge base 3, with the mounting part 11 located in the jaw;

[0055] The nail gate assembly includes a nail gate and a slider 82 disposed in the jaws, the slider 82 sliding along the length of the nail box 81;

[0056] The cutting blade assembly 4 is slidably mounted in the main body 1 along the axis of the main body 1 and is located beside the mounting part 11;

[0057] Locking element 51 is rotatably mounted on mounting part 11 along an axis parallel to the main body 1.

[0058] The locking device 6 is rotatably mounted on the mounting part 11 in a direction perpendicular to the plane of the cutting blade assembly 4. The locking device 6 is at least partially located between the locking member 51 and the nail box base 3 and abuts against the locking member 51.

[0059] The elastic element 7 is installed between the mounting part 11 and the locking element 51. The elastic element 7 has a tendency to drive the locking element 51 to rotate toward the locking device 6.

[0060] In the first state, the elastic force of the elastic member 7 acts on the locking member 51, causing the locking member 51 to abut against the locking device 6, and the locking member 51 to abut against the cutting blade assembly 4, locking the cutting blade assembly 4 in the main body 1.

[0061] In the second state, an external force greater than the elastic force is applied to the locking device 6. Under the action of the external force, the locking device 6 overcomes the elastic force of the elastic element 7, and the locking element 51 separates from the cutting blade assembly 4. The cutting blade assembly 4 slides along the axis of the main body 1 toward the far end.

[0062] Understandably, when the staple cartridge assembly 8 is not installed, the elastic force of the elastic element 7 acts on the locking element 51. The downward-facing surface of the locking element 51 abuts against the locking device 6, and the proximal surface of the locking element 51 abuts against the cutting blade assembly 4. The cutting blade assembly 4 cannot advance and cannot perform the firing operation, thus achieving the safety intention that the stapler cannot fire when the staple cartridge assembly 8 is not installed. This can prevent the stapler from being accidentally triggered, avoid the accident of human tissue being cut and unable to be sutured by the stapler, avoid causing massive bleeding in the patient, and improve the safety of the stapler.

[0063] In order to install the locking member 51 on the mounting part 11 and abut against the cutting blade assembly 4, refer to Figure 2 , Figure 3 As shown, the mounting part 11 in this embodiment is provided with a mounting groove 1111. The locking member 51 is rotatably mounted in the mounting groove 1111 by the fixing member 52. The locking member 51 includes a rotating part 5111 rotatably mounted in the mounting groove 1111 and an abutting part 5112 that is partially exposed in the mounting groove 1111 and abuts against the cutting blade assembly 4.

[0064] Among them, reference Figure 2 , Figure 3 As shown, in this embodiment, the rotating part 5111 has a first mounting hole parallel to the axial direction of the main body 1, the near end face of the mounting groove 1111 has a second mounting hole 1112, and the far end face of the mounting groove 1111 has a third mounting hole 1113. The fixing member 52 is sequentially disposed through the first mounting hole, the second mounting hole 1112, and the third mounting hole 1113. According to this design, the rotating part 5111 can be rotatably mounted in the mounting groove 1111.

[0065] In addition, in order to fix the elastic member 7 between the mounting part 11 and the locking member 51 and to facilitate the application of the elastic force of the elastic member 7 to the locking member 51, refer to Figure 3 As shown, in this embodiment, the bottom end face of the mounting groove 1111 is provided with a slot 1114. The elastic member 7 includes a fixing part 711 that is engaged in the slot 1114 and abuts against the side wall of the mounting groove 1111, a first bent part 712 that abuts against the rotating part 5111, and a second bent part 713 that abuts against the abutting part 5112. An acute angle is formed between the first bent part 712 and the fixing part 711. The angle of the acute angle in the first state is greater than the angle of the acute angle in the second state. According to this design, the locking member 51 can always abut against the cutting blade assembly 4 without being affected by external force through the elastic member 7, thus ensuring the safety of the stapler.

[0066] In order to rotatably mount the locking device 6 into the mounting part 11 and abut against the locking member 51, refer to Figure 2 , Figure 4 As shown, the locking device 6 in this embodiment includes a first locking plate 61. The first locking plate 61 includes a rotating arm 611 extending toward the locking member 51, an abutting arm 612 located at the far end of the rotating arm 611, and a stop arm 613 located at the near end of the rotating arm 611. The rotating arm 611 is rotatably mounted on the mounting part 11, and the abutting arm 612 is located between the locking member 51 and the nail box base 3 and abuts against the locking member 51.

[0067] In a preferred embodiment, refer to Figure 2 , Figure 3As shown, the main body 1 in this embodiment includes a first mounting portion 111 and a second mounting portion 112 located on both sides of the cutting blade assembly 4. The locking member 51 includes a first locking member 511 rotatably mounted on the first mounting portion 111 via a first fixing member 521 and a second locking member 512 rotatably mounted on the second mounting portion 112 via a second fixing member 522. The elastic member 7 includes a first elastic member 71 installed between the first mounting portion 111 and the first locking member 511, and a second elastic member 72 installed between the second mounting portion 112 and the second locking member 512. According to this design, the first locking member 511 and the second locking member 512 are symmetrically arranged on the left and right sides of the cutting blade assembly 4 to abut against the cutting blade assembly 4, making the state of the cutting blade assembly 4 locked in the main body 1 more stable. This avoids the situation where the elastic member 7 abutting against only one locking member 51 fails, resulting in the inability to lock the cutting blade assembly 4, thus providing double protection for locking the cutting blade assembly 4.

[0068] Among them, reference Figures 2-4 As shown, in order to drive the first locking member 511 and the second locking member 512 to rotate together by rotating the locking device 6, the locking device 6 in this embodiment includes a first locking plate 61 rotatably mounted on the first mounting part 111, a second locking plate 62 rotatably mounted on the second mounting part 112, and a connecting plate 63 connecting the first locking plate 61 and the second locking plate 62. The connecting plate 63 is located between the cutting blade assembly 4 and the anvil assembly 2. The first locking plate 61 and the second locking plate 62 are symmetrically arranged. The first locking plate 61 abuts against the first locking member 511, and the second locking plate 62 abuts against the second locking member 512.

[0069] In a preferred embodiment, refer to Figures 5-10 As shown, in this embodiment, the slider 82 is located near the end of the nail box 81 in the initial state;

[0070] In the first state, an angle is formed between the nail box base 3 and the nail anchor assembly 2, and the slider 82 is separated from the locking device 6;

[0071] In the second state, the nail box base 3 is parallel to the nail abutment assembly 2, and the slider 82 and the locking device 6 are both in contact.

[0072] Understandably, when the staple cartridge assembly 8, which includes a staple cartridge 81 and a slider 82, is installed in the stapler in this embodiment, if the staple cartridge assembly 8 is in a used state, the slider 82 on the staple cartridge 81 is located at the end away from the cutter assembly 4. Therefore, the slider 82 is separated from the locking member 51. In the first state, the slider 82 cannot apply external force to the locking member 6, and the locking member 6 cannot apply external force to the locking member 51 to overcome the elastic force applied by the elastic member 7 to the locking member 51, so that the locking member 51 is always in contact with the cutter assembly 4, and the cutter assembly 4 cannot advance or perform the firing operation, thereby realizing the insertion of used staples. In the first state, the stapler cannot be fired due to safety concerns. In the second state, since the stapler assembly 8 is unused, the slider 82 on the stapler 81 is located near the end of the cutter assembly 4. Therefore, the slider 82 abuts against the locking device 6 and drives the locking device 6 to rotate. The locking device 6 abuts against the locking member 51. Therefore, the locking member 51 rotates under the action of the locking device 6, overcoming the elastic force. In the second state, the slider 82 can apply external force to the locking member 51 through the locking device 6. The locking member 51 separates from the cutter assembly 4, removing the obstruction to the cutter assembly 4, so that the cutter assembly 4 can be fired smoothly to complete the cutting and suturing.

[0073] Preferably, refer to the figure. Figure 2 , Figure 3 As shown, the slider 82 in this embodiment includes a boss 821, which pushes the locking device 6 to rotate. According to this design, during the movement of the cutting blade, the staple cartridge base 3 drives the staple cartridge 81 and slider 82 to rotate until the staple cartridge base 3 is parallel to the anvil assembly 2. During the rotation of the slider 82, which is located near the staple cartridge base 3, the boss 821 pushes the locking device 6 to rotate together. At this time, the abutment portion 5112 of the locking member 51 slowly moves away from the plane of the cutting blade assembly 4, allowing the cutting blade to smoothly move towards the distal end of the stapler through the abutment portion 5112. After the staple cartridge 81 is used, the slider 82 is pushed to the distal end of the staple cartridge base 3 by the cutting blade and will not return to its original position with the cutting blade. If the stapler is operated again at this time, because the slider 82 is at the distal end of the staple cartridge base 3, it cannot push the locking device 6 through the boss 821 to push the locking member 51. The cutting blade can only move to the contact part 5112 of the locking mechanism and cannot move further forward. This achieves the purpose of preventing the used staple cartridge 81 from being reused. It avoids serious medical accidents caused by the incorrect use of the used staple cartridge 81, such as cutting the tissue without suturing the incision with titanium staples, and improves the safety of the stapler.

[0074] To facilitate the opening of the jaws after the operator has completed the anastomosis of human tissue using the stapler, the cutting blade assembly 4 returns to its initial position (i.e., the cutting blade assembly 4 is mostly housed in the main body 1 and abuts against the locking member 51), referring to... Figure 1As shown, the stapler in this embodiment also includes a reset member 9, which is located between the mounting part 11 and the staple cartridge base 3. The reset member 9 can be a spring, leaf spring, etc. When the jaws are closed and the anvil assembly 2 and the staple cartridge base 3 are parallel, the reset member 9 is in a compressed state to provide an elastic force to the staple cartridge base 3 to rotate away from the anvil assembly 2, so that the jaws can return to an open state.

[0075] Preferably, refer to Figure 1 , Figure 10 As shown, in this embodiment, the mounting part 11 has a first mounting groove on its surface facing the stapler base 3. A mounting post 1115 extends from the first mounting groove toward the stapler base 3. A second mounting groove 31 is provided on the surface of the stapler base 3 facing the mounting part 11. The first end of the reset member 9 is mounted on the mounting post 1115, and the second end of the reset member 9 is mounted in the second mounting groove 31. Based on this design, the reset member 9 can be fixed in the stapler, resulting in a reliable and stable structure and preventing the reset member 9 from detaching and being lost from the stapler.

[0076] As can be seen from the above technical solutions, the present invention has the following beneficial effects:

[0077] This invention provides a stapler that, when a used staple cartridge assembly is installed in the stapler, prevents the cutting blade assembly from advancing through a locking mechanism, thus preventing firing. This prevents accidental triggering of the stapler, avoids the accidental cutting of human tissue that cannot be sutured by the stapler, avoids causing massive bleeding in the patient, and improves the safety of the stapler.

[0078] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0079] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stapler, characterized in that, The stapler includes: The main body has an installation part along the axial direction; An anti-pin assembly is fixedly installed on the main body; A nail cartridge base is hinged to the main body, and a jaw is formed between the nail anchor assembly and the nail cartridge base, with the mounting part located in the jaw; A nail gate assembly, comprising a nail gate and a slider disposed within the jaws, the slider sliding along the length direction of the nail cartridge; A cutting blade assembly is slidably mounted in the main body along the main body axis and located beside the mounting part; A locking element is rotatably mounted on the mounting portion along an axis parallel to the main body. A locking device is rotatably mounted on the mounting part in a direction perpendicular to the plane of the cutting blade assembly. The locking device is at least partially located between the locking member and the nail box base and abuts against the locking member. An elastic element is installed between the mounting part and the locking element, and the elastic element has a tendency to drive the locking element to rotate toward the locking device; In the first state, the slider is separated from the locking device, the locking member abuts against the cutting blade assembly, and the cutting blade assembly is locked in the main body; In the second state, the slider abuts against the locking device, the locking device overcomes the elastic force of the elastic element and drives the locking element to rotate until it separates from the cutting blade assembly, and the cutting blade assembly slides along the axial direction of the main body toward the distal end.

2. The stapler according to claim 1, characterized in that, The mounting part is provided with a mounting groove, and the locking member is rotatably mounted in the mounting groove by a fixing member. The locking member includes a rotating part rotatably mounted in the mounting groove and an abutting part that partially protrudes from the mounting groove and abuts against the cutting blade assembly.

3. The stapler according to claim 2, characterized in that, The rotating part is provided with a first mounting hole parallel to the axis of the main body, the near end face of the mounting groove is provided with a second mounting hole, and the far end face of the mounting groove is provided with a third mounting hole. The fastener is sequentially disposed in the first mounting hole, the second mounting hole and the third mounting hole.

4. The stapler according to claim 2, characterized in that, The bottom end face of the mounting groove is provided with a slot. The elastic element includes a fixing part that is engaged in the slot and abuts against the side wall of the mounting groove, a first bending part that abuts against the rotating part, and a second bending part that abuts against the abutting part. An acute angle is formed between the first bending part and the fixing part. The angle of the acute angle in the first state is greater than the angle of the acute angle in the second state.

5. The stapler according to claim 1, characterized in that, The locking device includes a first locking plate, which includes a rotating arm extending toward the locking member, an abutting arm located at the distal end of the rotating arm, and a stop arm located at the proximal end of the rotating arm. The rotating arm is rotatably mounted on the mounting part, and the abutting arm abuts against the locking member.

6. The stapler according to claim 1, characterized in that, The main body includes a first mounting portion and a second mounting portion located on both sides of the cutting blade assembly. The locking member includes a first locking member rotatably mounted on the first mounting portion and a second locking member rotatably mounted on the second mounting portion. The elastic member includes a first elastic member installed between the first mounting portion and the first locking member and a second elastic member installed between the second mounting portion and the second locking member.

7. The stapler according to claim 6, characterized in that, The locking device includes a first locking plate rotatably mounted on the first mounting part, a second locking plate rotatably mounted on the second mounting part, and a connecting plate connecting the first locking plate and the second locking plate. The connecting plate is located between the cutting blade assembly and the anchor seat assembly. The first locking plate abuts against the first locking member, and the second locking plate abuts against the second locking member.

8. The stapler according to claim 1, characterized in that, The slider is initially located near the end of the nail box; In the first state, an angle is formed between the nail box base and the nail anchor assembly; In the second state, the nail box base is parallel to the nail anchor assembly.

9. The stapler according to claim 8, characterized in that, The slider includes a boss, which pushes the locking device to rotate.

10. The stapler according to claim 1, characterized in that, The stapler also includes a reset member located between the mounting portion and the staple cartridge base.

11. The stapler according to claim 10, characterized in that, The mounting part has a first mounting groove on its surface facing the nail box base. An mounting post extends from the first mounting groove toward the nail box base. The nail box base has a second mounting groove on its surface facing the mounting part. The first end of the reset member is mounted on the mounting post, and the second end of the reset member is mounted in the second mounting groove.

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