A nail pushing slider with self-adaptive nail pushing depth, a nail magazine, anastomosis device and a method

Abstract

The present invention belongs to the field of staplers, and specifically relates to a stapler pusher slider, stapler, stapler and method with adaptive stapler pusher depth, wherein the stapler pusher slider with adaptive stapler pusher depth includes a sliding portion, a trigger portion and a hinged structure; the sliding portion is used to slide linearly in the push knife groove of the stapler, the trigger portion is hingedly arranged on the sliding portion through a hinged structure, and is used to slide in the trigger groove of the stapler, and the hinged structure is located at the upstream end of the sliding portion and the trigger portion; it also includes a rotation limit structure that limits the minimum rotation angle of the sliding portion and the trigger portion, and an elastic member that drives the trigger portion to always rotate toward the minimum rotation angle. The stapler pusher slider with adaptive stapler pusher depth provided by the present invention can adaptively adjust the suturing height of the staples according to the thickness of the tissue to be sutured at the suture position.

Description

Technical Field

[0001] The invention belongs to the field of staplers, and in particular relates to a stapler pushing slider with self-adaptive staple pushing depth, a stapler, a stapler and a method. Background Art

[0002] A stapler is a device used in medicine to replace manual suturing. Its main working principle is to use titanium nails to separate or staple tissues, similar to a stapler.

[0003] At present, the stapler of a conventional stapler is composed of a stapler magazine, a stapler pusher block, a stapler seat, staples and a cover plate, wherein the cover plate is clamped and arranged on the upper end and the side of the stapler magazine, and blocks the stapler pusher block, the stapler seat and the staples. When a conventional stapler is used, the height and the closing height of the stapler magazine are fixed, and once selected before the operation, they cannot be changed. However, the thickness of human tissue is not constant. When the same stapler is used, the thickness of the tissue passed through by the stapler magazine varies. The current stapler cannot be adaptively adjusted for this difference. Regardless of the thickness, the same compact suturing degree is used. Especially for thicker tissues, the use of compact suturing staples will crush and damage the tissue, which invisibly increases the suturing effect and the difficulty of the operation. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a staple pushing slider, a staple cartridge, a stapler and a method which can adaptively adjust the staple suturing degree according to the thickness of the tissue.

[0005] The present invention provides a nail pushing slider with self-adaptive nail pushing depth, comprising a sliding part, a trigger part and a hinge structure;

[0006] The sliding part is used to slide linearly in the push knife slot of the nail magazine, and the trigger part is hingedly arranged on the sliding part through a hinge structure, and is used to slide in the trigger slot of the nail magazine, and the hinge structure is located at an upstream end of the sliding part and the trigger part;

[0007] It also includes a rotation limiting structure for limiting the minimum rotation angle of the sliding part and the trigger part, and an elastic member for driving the trigger part to always rotate toward the minimum rotation angle.

[0008] Furthermore, the hinge structure includes through holes arranged upstream of the sliding portion and the triggering portion and a hinge shaft connecting the two groups of through holes.

[0009] Furthermore, the elastic member is a torsion spring, which is arranged between the sliding part and the triggering part, and is wound around the hinge shaft. One torsion arm of the torsion spring is fixedly arranged on the sliding part, and the other torsion arm is fixedly arranged on the triggering part.

[0010] Furthermore, the rotation limiting structure includes a limiting plate arranged on the sliding part, and when the sliding part and the trigger part are at a minimum rotation angle, the limiting plate abuts against the trigger part.

[0011] Furthermore, the sliding portion is a triangular structure.

[0012] Furthermore, the sliding part is provided with two groups, and the two groups of sliding parts are symmetrically arranged on both sides of the trigger part;

[0013] The rotations of the two groups of sliding parts are independent of each other.

[0014] The present invention also provides a nail magazine, comprising a nail magazine, a cover plate and the above-mentioned nail pushing slider with adaptive nail pushing depth;

[0015] The nail magazine is provided with a knife-pushing groove, and the nail magazine is provided with a plurality of nail grooves penetrating the two ends of the nail magazine on at least one side of the knife-pushing groove. The nail magazine is also provided with a trigger groove connecting a row of the nail grooves, and a nail-pushing block is slidably provided in each of the nail grooves, and one end of the nail-pushing block abuts against a staple;

[0016] The cover plate is arranged on one side of the nail magazine, and an inner wall of the cover plate is spaced from a mounting surface of the nail magazine;

[0017] When the sliding part and the trigger part are at a minimum rotation angle, one end of the trigger part extends into the deepest position of the trigger groove. When the sliding part and the trigger part rotate to a rotation angle greater than the minimum rotation angle, the sliding part rotates within the interval.

[0018] Furthermore, a linear guide rail is provided on the side wall of the push knife groove, and a linear sliding block cooperating with the linear guide rail is provided on the sliding part.

[0019] The present invention also provides a stapler, comprising an operating portion and a head, wherein the head comprises an abutment seat and the staple cartridge;

[0020] The abutment seat and one end of the nail magazine close to the operating part are hinged;

[0021] The operating part comprises an operating handle and a blade body telescopically arranged on the operating handle.

[0022] The present invention also provides an anastomosis method, using the above-mentioned stapler, comprising the following steps:

[0023] S1, align the head with the tissue to be cut and sutured;

[0024] S2, the operating unit controls the staple cartridge and the staple holder to move closer together and clamp the tissue to be cut and sutured;

[0025] S3, the operating part controls the blade body to move, and during the movement, the blade body pushes the sliding part in the nail pushing slider with adaptive nail pushing depth to move, and the sliding part drives the trigger part to move;

[0026] When the trigger part in the nail pushing slider with adaptive nail pushing depth passes through thicker tissue, the trigger resistance applied to the trigger part by the nail and the nail pushing block is large, and the trigger part will rotate around the hinge structure until the rotation resistance of the trigger part is balanced with the trigger resistance. At this time, the nail sutures the thicker tissue in a high suturing state;

[0027] When the trigger part in the nail pushing slider with adaptive nail pushing depth passes through normal or thin tissue, the trigger resistance applied to the trigger part by the nail and the nail pushing block is small. At this time, the trigger resistance is not enough to drive the trigger part to rotate around the hinge structure. The trigger part and the sliding part are in a state of minimum rotation angle. At this time, the nail sews the normal or thin tissue in a compact suturing state.

[0028] S4, after tissue cutting and suturing, the operating unit controls the blade body to reset, controls the staple cartridge and the staple support to open, and separates the head from the tissue.

[0029] The beneficial effect of the present invention is that the staple pushing slider with adaptive staple pushing depth provided by the present invention can adaptively adjust the suturing height of the staples according to the thickness of the tissue to be sutured at the position to be sutured. For normal or thinner tissue, the staples can be sutured in a compact suturing state, and then the staples perform compact surrounding suturing on the normal or thinner tissue, while for thicker tissue, the staples can be sutured in a high suturing state. At this time, the staples are adapted to the thickness of the tissue after suturing to ensure the height of the staples, avoiding the problem of squeezing or crushing the thicker tissue due to compact surrounding suturing. Moreover, the structural improvement for realizing the above functions is arranged on the staple pushing slider. Compared with the current method of realizing different staple pushing depths through improvements on the staple magazine or the staple pushing block, the structural improvement has the advantages of simple structure, easy production and processing, and higher stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Attached Figure 1 It is a schematic diagram of the structure of the nail magazine in the present invention when the sliding part and the trigger part are at a rotation angle greater than the minimum rotation angle;

[0031] Attached Figure 2 It is a top view of the nail magazine in the present invention when the sliding part and the trigger part are at a rotation angle greater than the minimum angle;

[0032] Attached Figure 3 For attachment Figure 2 Middle AA section view;

[0033] Attached Figure 4 For attachment Figure 3 Middle BB section view;

[0034] Attached Figure 5 It is a schematic diagram of the structure of the nail magazine in the present invention when the sliding part and the trigger part are at a rotation angle greater than the minimum and the cover plate is transparent;

[0035] Attached Figure 6 It is a schematic diagram of the structure of the nail magazine in the present invention when the sliding part and the trigger part are at the minimum rotation angle and the cover plate is hidden;

[0036] Attached Figure 7 It is a structural schematic diagram of the nail box in the present invention;

[0037] Attached Figure 8 It is a structural schematic diagram of the present invention when the sliding part and the triggering part of the nail pushing slider with adaptive nail pushing depth are at the minimum rotation angle;

[0038] Attached Fig. 9 It is a structural schematic diagram of the present invention when the sliding part and the triggering part of the nail pushing slider with adaptive nail pushing depth are at a rotation angle greater than the minimum rotation angle;

[0039] Attached Fig.10 For attachment Fig. 9 A partial enlarged view of point C in the middle;

[0040] Attached Fig.11 It is a structural schematic diagram of the sliding part in the present invention;

[0041] Attached Fig.12 It is a structural schematic diagram of the triggering part in the present invention;

[0042] Attached Fig.13 It is a structural schematic diagram of the hinge shaft in the present invention;

[0043] Attached Fig.14 It is a schematic diagram of the staple suturing state when the sliding part and the trigger part are at the minimum rotation angle in the present invention;

[0044] Attached Fig.15 It is a schematic diagram of the staple suturing state when the sliding part and the trigger part are at a rotation angle greater than the minimum rotation angle in the present invention.

[0045] In the figure, 1-nail magazine; 11-knife pusher groove; 111-linear guide rail; 12-nail groove; 13-trigger groove; 14-mounting surface; 2-nail push slider with adaptive nail pushing depth; 21-sliding part; 211-linear slider; 22-trigger part; 23-hinge structure; 231-through hole; 232-hinge shaft; 233-limiting ring; 24-rotation limiting structure; 241-limiting plate; 242-limiting groove; 25-elastic member; 3-cover plate; 31-inner wall; 4-spacer; 5-nail push block; 6-nail support; 7-sewing nail. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] As attached Figure 1 -Attached Fig.15 As shown, the present invention provides a nail pushing slider 2 with self-adaptive nail pushing depth, comprising a sliding portion 21, a trigger portion 22 and a hinge structure 23, wherein the sliding portion 21 and the trigger portion 22 can be consistent with the structure of a conventional nail pushing slider, and it is only necessary to split the middle (sliding portion 21) and the two sides (trigger portion 22) of the conventional nail pushing slider into a split design, and then hinge the sliding portion 21 and the trigger portion 22 through the hinge structure 23;

[0052] The sliding portion 21 is used to slide linearly in the knife push groove 11 of the stapler, specifically, to achieve linear sliding under the push of the blade body, and to move from the side of the stapler close to the stapler operating portion to the side of the stapler away from the stapler operating portion. The trigger portion 22 is hingedly arranged on the sliding portion 21 through a hinge structure 23. At this time, the trigger portion 22 can rotate around the hinge structure 23 on the basis of the sliding portion 21, and the trigger portion 22 is used to slide in the trigger groove 13 of the stapler, so that when the trigger portion 22 passes through the trigger groove 13 , triggering the corresponding nail pushing block 5 in the triggering slot 13 to move downward, pushing the corresponding staple 7 downward. At this time, since the triggering portion 22 can rotate around the hinge structure 23 on the basis of the sliding portion 21, when the triggering portion 22 rotates to different angles, the triggering portion 22 will push the nail pushing block 5 to move downward to different depths, and the hinge structure 23 is located at the upstream end of the sliding portion 21 and the triggering portion 22, that is, located on the side of the sliding portion 21 and the triggering portion 22 away from the stapler operating portion, so that the triggering portion 22 can rotate during the forward movement;

[0053] The present self-adaptive nail pushing depth nail pushing slider 2 further includes a rotation limiting structure 24 for limiting the minimum rotation angle of the sliding portion 21 and the trigger portion 22. When the sliding portion 21 and the trigger portion 22 are at the minimum rotation angle, they cannot continue to rotate in the direction of a small angle due to the existence of the rotation limiting structure 24. Figure 8 and attached Fig.14 , and when the sliding portion 21 and the trigger portion 22 are at the minimum rotation angle, the trigger portion 22 is in a state where the nail pushing block 5 can be pushed into the deepest distance, that is, the use state of the conventional nail pushing slider and nail magazine is consistent, refer to the attached Fig. 9 and attached Fig.15The trigger portion 22 is rotated to make the sliding portion 21 and the trigger portion 22 greater than the minimum rotation angle, and the trigger portion 22 is rotated away from the end of the nail pushing block 5 and then tilted. At this time, the depth of the nail pushing block 5 pushed by the trigger portion 22 is less than the deepest distance. The nail pushing slider 2 of the adaptive nail pushing depth drives the trigger portion 22 to always rotate toward the elastic member 25 of the minimum rotation angle. By setting the elastic member 25, the adaptive nail pushing depth adjustment of the nail pushing slider 2 of the adaptive nail pushing depth is realized. Specifically, the elastic member 25 drives the trigger portion 22 to always be in a state where the nail pushing block 5 can be pushed into the deepest distance. At this time, the situation adapted is that the tissue to be sutured is of normal thickness or thinner thickness. At this time, the suture nail 7 and the nail pushing block 5 will produce a certain resistance to the trigger portion 22, but the resistance is lower than the elastic force of the elastic member 25, and the trigger portion 22 cannot be driven to rotate. The trigger portion 22 works in a state where the nail pushing block 5 can be pushed into the deepest distance, so that the suture nail 7 is in a compact suture state to suture normal thickness or thinner tissue. Once thicker tissue to be sutured is encountered, the resistance generated by the suture staples 7 and the staple pusher block 5 on the trigger portion 22 will be greater than the elastic force of the elastic member 25, and will have different resistances according to the thickness of the tissue, thereby adaptively driving the trigger portion 22 to rotate, so that the suture staples 7 are in a high suture state to suture the thicker tissue.

[0054] It should be noted that the normal tissue referred to in the present invention refers to the tissue that cannot cause the trigger part 22 to rotate, and the state in which the trigger part 22 can push the pin block 5 into the deepest distance is the thickest thickness of the tissue, thinner tissue refers to tissue thinner than the thickest thickness, and thicker tissue refers to tissue thicker than the thickest thickness. At this time, the tissue can drive the trigger part 22 to rotate.

[0055] The self-adaptive nail pushing depth nail pushing slider 2 provided by the present invention can self-adaptively adjust the suturing height of the suture nail 7 according to the thickness of the tissue to be sutured at the suture position. For normal or thin tissue, the suture nail 7 can be sutured in a compact suture state, so that the suture nail 7 performs a compact surrounding suture on the normal or thin tissue (refer to the attached Fig.14 ), and for thicker tissue, the staples 7 can be sutured in a high suture state (refer to the attached Fig.15 ), at this time, the thickness of the suture staples 7 after suturing is adapted to the tissue to ensure the height of the suture staples 7, thereby avoiding the problem of compact surrounding suturing causing squeezing or crushing of thicker tissues. Moreover, the structural improvement for realizing the above-mentioned function is arranged on the staple pushing slider. Compared with the current method of realizing different staple pushing depths by improving the staple magazine or the staple pushing block, the structural improvement has the advantages of simple structure, easy production and processing, and higher stability.

[0056] In one embodiment, the hinge structure 23 includes a through hole 231 disposed upstream of the sliding part 21 and the trigger part 22 and a hinge shaft 232 connecting the two groups of through holes 231. In this embodiment, the sliding part 21 and the trigger part 22 can be connected by a hinge shaft 232. The hinge method is simple, reliable, and convenient to install. Preferably, a limit ring 233 is provided at both ends of the hinge shaft 232 to stabilize the hinge connection between the sliding part 21 and the trigger part 22. In addition, this embodiment is applicable to the scheme that two groups of trigger parts 22 are correspondingly provided, so that the hinge connection of the two groups of trigger parts 22 is convenient and fast. In other embodiments, the sliding part 21 may be provided with a hinge convex shaft or a hinge blind hole, and the trigger part 22 may be provided with a hinge blind hole or a hinge convex shaft for hinge connection.

[0057] In one embodiment, the elastic member 25 is a torsion spring, which is arranged between the sliding part 21 and the trigger part 22, and is wound around the hinge shaft 232. One of the torsion arms of the torsion spring is fixedly arranged on the sliding part 21, and the other torsion arm is fixedly arranged on the trigger part 22. The arrangement of the torsion spring has the effect of simple structure and convenient installation, and can make the trigger part 22 rotate toward the minimum rotation angle state of the sliding part 21 and the trigger part 22, and can also form a certain rotation resistance to the rotation of the trigger part 22. In this embodiment, the torsion of the torsion spring can be selected during production to achieve adaptive control of different nail pushing depths.

[0058] In one embodiment, the rotation limiting structure 24 includes a limiting plate 241 disposed on the sliding portion 21, the limiting plate 241 is disposed toward the sliding portion 21, and when the sliding portion 21 and the trigger portion 22 are at the minimum rotation angle, the limiting plate 241 abuts against the trigger portion 22. The rotation limiting structure 24 is simple and reliable, and does not occupy additional space of the pin pushing slider 2 with adaptive pin pushing depth. Preferably, a limiting groove 242 is provided at a corresponding position on the surface of the sliding portion 21 to further improve the limiting effect.

[0059] In one embodiment, the sliding portion 21 is a triangular structure, wherein the hypotenuse of the triangle is arranged in an inclined posture in the trigger groove 13, so that when the nail pushing block 5 is pushed, it is gradual and ensures the pushing effect.

[0060] In one embodiment, the sliding part 21 is provided with two groups, and the two groups of sliding parts 21 are symmetrically arranged on both sides of the trigger part 22. The trigger part 22 is provided with two groups, and the corresponding stapler can sew both sides of the cutting part;

[0061] The rotations of the two groups of sliding parts 21 are independent of each other, that is, they can adapt to the adaptive suturing of tissues with different thicknesses on both sides of the suture part.

[0062] The present invention also provides a nail magazine, comprising a nail magazine 1, a cover plate 3 and the above-mentioned nail pushing slider 2 with adaptive nail pushing depth;

[0063] The nail magazine 1 is provided with a knife-pushing groove 11, and the nail magazine 1 is provided with a plurality of nail grooves 12 penetrating the two ends of the nail magazine 1 on at least one side of the knife-pushing groove 11. The nail magazine 1 is also provided with a trigger groove 13 connecting a row of the nail grooves 12, and a nail-pushing block 5 is slidably provided in each of the nail grooves 12, and one end of the nail-pushing block 5 abuts against a staple 7;

[0064] The cover plate 3 is arranged on one side of the nail magazine 1, and there is a gap 4 between the inner wall 31 of the cover plate 3 and the mounting surface 14 of the nail magazine 1; that is, the nail magazine provided by the present invention is basically the same as the nail magazine structure in the prior art, and the only difference is that the inner wall 31 of the cover plate 3 of the existing nail magazine and the mounting surface 14 of the nail magazine 1 are arranged in close contact, while the inner wall 31 of the nail magazine cover plate 3 of the present invention and the mounting surface 14 of the nail magazine 1 have a gap 4, and the design of the gap 4 is to provide a rotation space for the rotation of the trigger part 22, so as to avoid the inner wall 31 of the cover plate 3 limiting the rotation of the trigger part 22, and is particularly suitable for when two or more trigger grooves 13 are arranged on one side of the push knife groove 11, at this time, the two trigger grooves 13 correspond to two trigger parts 22, and the two trigger parts 22 need to be connected to each other on the side of the inner wall 31 of the cover plate 3, and at this time, the gap 4 provides a rotation space for the connection structure. Preferably, the size of the gap 4 can be reduced by adjusting the height of the nail groove 12, thereby improving the matching firmness of the cover plate 3 and the nail magazine 1;

[0065] When the sliding part 21 and the trigger part 22 are at the minimum rotation angle, one end of the trigger part 22 extends into the deepest position of the trigger groove 13. When the sliding part 21 and the trigger part 22 rotate to a rotation angle greater than the minimum rotation angle, the sliding part 21 rotates in the interval 4.

[0066] In one embodiment, a linear guide rail 111 is disposed on the side wall of the push knife groove 11, and a linear slider 211 cooperating with the linear guide rail 111 is disposed on the sliding portion 21. Through the cooperation between the linear guide rail 111 and the linear slider 211, the sliding portion 21 can slide in a straight line to prevent the sliding portion 21 from rotating.

[0067] The present invention also provides a stapler, comprising an operating portion and a head, wherein the head comprises an abutment seat and the staple cartridge;

[0068] The abutment seat and one end of the nail magazine close to the operating part are hinged;

[0069] The operating part includes an operating handle and a blade body telescopically arranged on the operating handle. It should be noted that, except for the difference between the stapler magazine and the existing stapler magazine, the other structures of the stapler can be consistent with the existing stapler structure, so that the stapler can realize adaptive suturing depth control without improving other parts except the stapler magazine, so that the stapler has extremely high adaptability.

[0070] The present invention also provides an anastomosis method, using the above-mentioned stapler, comprising the following steps:

[0071] S1, align the head with the tissue to be cut and sutured;

[0072] S2, the operating unit controls the staple cartridge and the staple holder 6 to move closer and clamp the tissue to be cut and sutured;

[0073] S3, the operating part controls the blade body to move, and during the movement, the blade body pushes the sliding part 21 in the nail pushing slider 2 with adaptive nail pushing depth to move, and the sliding part 21 drives the trigger part 22 to move;

[0074] At this time, if the tissues on the path to be sutured have different thicknesses, when the triggering portion 22 in the nail pushing slider 2 with adaptive nail pushing depth passes through thicker tissue, the triggering resistance applied to the triggering portion 22 by the nail 7 and the nail pushing block 5 is large. At this time, the triggering portion 22 will rotate around the hinge structure 23 until the rotation resistance of the triggering portion 22 is balanced with the triggering resistance. At this time, the nail 7 sutures the thicker tissue in a high suture state;

[0075] When the triggering part 22 in the nail pushing slider 2 with adaptive nail pushing depth passes through normal or thin tissue, the triggering resistance applied to the triggering part 22 by the nail 7 and the nail pushing block 5 is small. At this time, the triggering resistance is not enough to drive the triggering part 22 to rotate around the hinge structure 23. The triggering part 22 and the sliding part 21 are in the minimum rotation angle state. At this time, the nail 7 sutures the normal or thin tissue in a compact suture state;

[0076] S4, after tissue cutting and suturing, the operating unit controls the blade body to reset, controls the staple cartridge and the staple holder 6 to open, and separates the head from the tissue.

[0077] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can use the above disclosed technical contents to make many possible changes, modifications or modifications to the technical solutions of the present invention into equivalent embodiments of equivalent changes without departing from the scope of the technical solutions of the present invention. Therefore, any simple modification, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the scope of protection of the technical solutions of the present invention.

Claims

1. A nail pushing slider with self-adaptive nail pushing depth, characterized in that: It comprises a sliding portion (21), a trigger portion (22) and a hinge structure (23); The sliding portion (21) is used to slide linearly in the knife pusher groove (11) of the stapler magazine, and the trigger portion (22) is hingedly arranged on the sliding portion (21) via a hinge structure (23) and is used to slide in the trigger groove (13) of the stapler magazine, and the hinge structure (23) is located on a side of the sliding portion (21) and the trigger portion (22) away from the stapler operating portion; The invention also comprises a rotation limiting structure (24) for limiting the minimum rotation angle of the sliding part (21) and the trigger part (22), and an elastic member (25) for driving the trigger part (22) to always rotate toward the minimum rotation angle. When the sliding part (21) and the trigger part (22) are at the minimum rotation angle, the trigger part (22) is in a state capable of pushing the nail pushing block (5) in the nail bin to the deepest distance. When the trigger part (22) rotates so that the sliding part (21) and the trigger part (22) are at a rotation angle greater than the minimum rotation angle, the trigger part (22) rotates toward the end away from the nail pushing block (5) in the nail bin, and the trigger part (22) pushes the nail pushing block (5) in the nail bin to a depth less than the deepest distance.

2. The self-adaptive nail pushing depth nail pushing slider according to claim 1, characterized in that: The hinge structure (23) comprises a through hole (231) arranged on a side of the sliding portion (21) and the trigger portion (22) away from the stapler operating portion, and a hinge shaft (232) connecting the two groups of through holes (231).

3. The self-adaptive pin pushing depth pin pushing slider according to claim 2, characterized in that: The elastic member (25) is a torsion spring, which is arranged between the sliding portion (21) and the trigger portion (22), and is wound around the hinge shaft (232), one torsion arm of the torsion spring is fixedly arranged on the sliding portion (21), and the other torsion arm is fixedly arranged on the trigger portion (22).

4. The self-adaptive nail pushing depth nail pushing slider according to claim 1, characterized in that: The rotation limiting structure (24) comprises a limiting plate (241) arranged on the sliding part (21); when the sliding part (21) and the trigger part (22) are at a minimum rotation angle, the limiting plate (241) abuts against the trigger part (22).

5. The self-adaptive nail pushing depth nail pushing slider according to claim 1, characterized in that: The sliding portion (21) is a triangular structure.

6. The self-adaptive nail pushing depth nail pushing slider according to any one of claims 1 to 5, characterized in that: The sliding parts (21) are provided in two groups, and the two groups of sliding parts (21) are symmetrically arranged on both sides of the trigger part (22); The rotations of the two groups of sliding parts (21) are independent of each other.

7. A nail magazine, characterized in that: It comprises a nail magazine (1), a cover plate (3) and a nail pushing slider (2) with self-adaptive nail pushing depth as claimed in any one of claims 1 to 6; The nail magazine (1) is provided with a knife push groove (11), and at least one side of the nail magazine (1) is provided with a plurality of nail grooves (12) penetrating two ends of the nail magazine (1). The nail magazine (1) is also provided with a trigger groove (13) connecting a row of the nail grooves (12), and a nail push block (5) is slidably arranged in each of the nail grooves (12), and one end of the nail push block (5) is abutted against a staple (7); The cover plate (3) is arranged on one side of the nail box (1), and a gap (4) is formed between an inner wall (31) of the cover plate (3) and a mounting surface (14) of the nail box (1); When the sliding portion (21) and the trigger portion (22) are at a minimum rotation angle, one end of the trigger portion (22) extends into the deepest position of the trigger groove (13); when the sliding portion (21) and the trigger portion (22) are rotated to a rotation angle greater than the minimum rotation angle, the sliding portion (21) rotates within the interval (4).

8. The staple cartridge according to claim 7, wherein: A linear guide rail (111) is provided on the side wall of the knife pushing groove (11), and a linear sliding block (211) cooperating with the linear guide rail (111) is provided on the sliding portion (21).

9. A stapler, characterized in that: It comprises an operating part and a head, wherein the head comprises an abutment seat and a nail magazine according to any one of claims 7 to 8; The abutment seat and one end of the nail magazine close to the operating part are hinged; The operating part comprises an operating handle and a blade body telescopically arranged on the operating handle.

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