Nail bin assembly in endoscope anastomat with independent limiting track

Abstract

The invention discloses a nail bin assembly in an endoscope anastomat with an independent limiting rail, relates to the technical field of accessories of the endoscope anastomat, and aims to solve the problem that suturing fails directly due to the fact that anastomosis nails cannot be correctly released or fixed due to loose connection between a nail bin and the anastomat. According to the double-locking nail bin, double-locking installation between the nail bin and the anastomat can be achieved through the arrangement of the transverse limiting and longitudinal limiting lock catch structures, and when intraoperative operation of the endoscope anastomat is carried out, smooth suturing of anastomosis nails is achieved; the aim of continuous and smooth installation can be achieved by combining synchronous transverse limiting and longitudinal limiting with continuous longitudinal buckling and transverse buckling, and the preoperative preparation time is shortened; the nail bin and the anastomat are used in a matched mode, two-way closing and locking of the nail bin are achieved through the two independent limiting rails, and the problem that the anastomosis nails cannot be correctly released or fixed due to the fact that connection between the nail bin and the anastomat is loosened is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of laparoscopic stapler accessories, and in particular to a stapler cartridge assembly of a laparoscopic stapler with an independent limiting track. Background Art

[0002] The stapler is one of the core parts of stapler surgical instruments. Its main function is to store and release staples. When the instrument is working, as the staple pusher slider is pushed forward, the staple pusher plate moves in the stapler hole. The staple pusher plate pushes the titanium staple to the staple holder, and the titanium staple is closed under pressure to achieve the suturing effect of the tissue. The structure includes: a stapler housing, an arranged staple, a staple pusher mechanism and a locking mechanism.

[0003] Referring to a stapler assembly of a laparoscopic stapler disclosed in patent application No. 202110331284.2, the stapler assembly supports the stapler feet through guide grooves to prevent the staplers from tilting during transportation and suturing, which may cause the staplers to become stuck and fail. However, in actual application, the connection between the stapler and the stapler may become loose, and the staplers cannot be properly released or fixed due to the loosening of the stapler, which directly leads to suturing failure.

[0004] For this purpose, this application proposes a solution. Summary of the invention

[0005] The object of the present invention is to provide a stapler magazine assembly in a laparoscopic stapler with an independent limiting track, which can utilize the locking structure setting of the lateral limiting and longitudinal limiting to realize the double locking installation between the stapler magazine and the stapler, so as to realize the smooth suturing of the staples during the intraoperative operation of the laparoscopic stapler; and can achieve the purpose of continuous and smooth installation by combining the synchronous lateral limiting and longitudinal limiting with the continuous longitudinal buckling and lateral buckling, thereby reducing the preoperative preparation time; the mutual use of the two realizes the bidirectional closed locking of the stapler magazine with the dual independent "limiting tracks", effectively avoiding the problem that the staples cannot be correctly released or fixed due to the loose connection between the stapler magazine and the stapler.

[0006] The object of the present invention can be achieved by the following technical solutions: a stapler assembly in a laparoscopic stapler with an independent limiting track, comprising a stapler body arranged on a stapler seat, the stapler body being slidably engaged with the stapler seat, the stapler body being provided with smoothly connected arc guide grooves and longitudinal buckle grooves on both sides corresponding to the rear end of the stapler seat, the stapler seat being provided with a longitudinal limiting assembly for longitudinally locking the stapler body through the arc guide groove; the longitudinal limiting assembly comprising a guide clamping seat, a longitudinal bayonet and a folding spring sheet, the longitudinal bayonet being provided at the front end of the folding spring sheet and matching the longitudinal buckle groove;

[0007] The nail magazine body is provided with transverse buckle grooves on both sides corresponding to the front end of the nail magazine seat, and the nail magazine body is provided with a transverse limiting component for transverse locking of the nail magazine body through the transverse buckle grooves, and the transverse limiting component includes a fixed block connected to the upper surface positions on both sides of the nail magazine seat, and a hook-shaped spring piece facing the rear side is installed on the fixed block, and the rear end of the hook-shaped spring piece is connected to a transverse latch matching the transverse buckle groove.

[0008] It is further configured as follows: the guide card seat is connected to the upper end of the nail magazine seat, an arc-shaped guide bar that is engaged with the arc-shaped guide groove is installed on the inner side of the guide card seat, the folding spring piece passes through the extended front end of the guide card seat and is connected to the longitudinal pin, and a support block is installed between the folding spring piece and the guide card seat.

[0009] It is further configured as follows: the extended rear end of the folding spring piece passing through the guide seat is connected to a thrust plate, and a second guide inclined groove is provided on the inner side of the front end of the thrust plate.

[0010] It is further configured as follows: a pushing assembly for longitudinally offsetting the pin is installed at the extended rear end of the nail magazine body corresponding to the folding spring piece that passes through the guide card seat, and the pushing assembly includes a long push rod and a short push rod rotatably arranged in the triangular grooves on both sides of the nail magazine body, the long push rod and the short push rod are in an angled shape, and the inner sides of the long push rod and the short push rod are aligned with the sides of the triangular grooves.

[0011] It is further configured as follows: a spring is embedded and installed on the outer side of the nail magazine body corresponding to the thrust plate, the outer end of the spring is connected to the inner side of the long push rod, and when the spring is extended, the outer end of the long push rod abuts against the second guide inclined groove.

[0012] It is further configured as follows: a guide inclined groove is provided at the front end of the upper surface of the transverse latch, and a smooth straight displacement groove is provided at the lower side of the nail magazine body corresponding to the transverse buckle groove.

[0013] It is further configured as follows: glue grooves and locking grooves are sequentially opened on both sides of the front end of the nail magazine body close to the straight displacement groove, a glue block is installed on the upper side of the glue groove corresponding to the nail magazine seat, the glue groove and the glue block are both diamond-shaped blocks, and a locking buckle is installed on the upper side of the locking groove corresponding to the nail magazine seat.

[0014] It is further configured as follows: the inner bottom end of the nail magazine seat is symmetrically installed with a middle base, an outer base and an inner base from the inside to the outside, a sliding knife groove is commonly provided between the nail magazine seat and the middle of the nail magazine body, and two groups of symmetrically distributed nail grooves connected to the sliding knife groove are provided on the nail magazine body.

[0015] The present invention also provides a method for installing a staple cartridge assembly in a laparoscopic stapler having an independent limiting track, comprising the following steps:

[0016] Step 1: Insert at an angle: insert the nail magazine body with the sealing film from the end into the middle and rear section of the nail magazine seat, and push it inward at an angle;

[0017] Step 2: Horizontal insertion: After the arc-shaped guide bar enters the arc-shaped guide groove, the nail magazine body continues to be pushed in horizontally;

[0018] Step 3: Fasten: Install until the horizontal latch and the horizontal slot, and the vertical latch and the vertical slot are double-fastened.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention aims to solve the problem that the staples cannot be correctly released or fixed due to the loose connection between the stapler and the stapler, which directly leads to suturing failure. The present invention can not only realize the double locking installation between the stapler and the stapler by using the locking structure of the transverse limit and the longitudinal limit, so as to realize the smooth suturing of the staples during the intraoperative operation of the laparoscopic stapler, but also realize the purpose of continuous and smooth installation by combining the synchronous transverse limit and the longitudinal limit with the continuous longitudinal buckle and the transverse buckle, so as to reduce the preoperative preparation time. The two can be used in conjunction with each other to realize the bidirectional closed locking of the stapler with the dual independent "limiting tracks", so as to effectively avoid the problem that the staples cannot be correctly released or fixed due to the loose connection between the stapler and the stapler.

[0021] 2. During the two-way locking process, the longitudinally sliding arc-shaped guide strip completes the horizontal guidance of the nail magazine body along the arc-shaped guide groove. During the horizontal sliding process of the nail magazine body, the long push rod on the pushing assembly deflects outward during the resetting and expansion process of the spring, and then deflects and squeezes on the thrust plate. The thrust plate can also complete the inward displacement of the other end through the support block through the folding spring piece, that is, drive the longitudinal bayonet to engage in the longitudinal buckle groove, thereby completing the longitudinal locking of the nail magazine body; then continue to push the nail magazine body, when the transverse bayonet on the transverse limiting assembly is vertically aligned with the transverse buckle groove, the hook-shaped spring piece on the transverse bayonet pops up upward when it is separated from the limiting and pressing state of the nail magazine body, that is, drives the transverse bayonet to engage in the transverse buckle groove, so that the nail magazine assembly and the nail magazine seat form a stable transverse locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0024] Figure 2 It is an overall schematic diagram of a staple cartridge seat of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0025] Figure 3 A cross-sectional view of a staple cartridge assembly in a laparoscopic stapler with an independent limit track proposed by the present invention, with the middle position of the longitudinal limit assembly as the section plane;

[0026] Figure 4 It is a top view and cross-sectional schematic diagram of a longitudinal limiting assembly of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the disassembly of the installation structure of the longitudinal limiting assembly of the staple cartridge assembly in the laparoscopic stapler with an independent limiting track proposed by the present invention;

[0028] Figure 6 This is a structural diagram of a pushing assembly of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0029] Figure 7 It is a partial structural cutaway view of a staple cartridge body of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0030] Figure 8 A schematic diagram of the longitudinal splitting of a staple cartridge assembly and a staple cartridge seat of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0031] Fig. 9 A schematic diagram of the transverse splitting of a staple cartridge assembly and a staple cartridge seat of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0032] Fig.10 This is a structural diagram of a transverse limiting assembly of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention;

[0033] Fig.11 A schematic diagram of the installation process of a staple cartridge assembly in a laparoscopic stapler with an independent limiting track proposed by the present invention.

[0034] In the figure: 1. Nail magazine seat; 2. Nail magazine body; 3. Guide seat; 4. Horizontal limit assembly; 41. Fixed block; 42. Hook-type spring piece; 43. Horizontal latch; 44. Bevel guide groove one; 5. Slide knife groove; 6. Rubber block; 7. Locking buckle; 8. Outer base; 9. Inner base; 10. Middle base; 11. Horizontal buckle groove; 12. Nail groove; 13. Longitudinal latch; 14. Folding spring piece; 15. Support block; 16. Thrust plate; 17. Arc guide strip; 18. Arc guide groove; 19. Longitudinal buckle groove; 20. Push assembly; 201. Long push rod; 202. Short push rod; 21. Spring; 22. Bevel guide groove two; 23. Rubber groove; 24. Straight displacement groove; 25. Locking groove. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0036] Embodiment 1: To solve the problem that the staples cannot be properly released or fixed due to the loose connection between the staple cartridge and the stapler, which directly leads to suturing failure, the following technical solution is proposed:

[0037] Reference Figure 1 - Fig.10 As shown, in this embodiment, a stapler assembly in a laparoscopic stapler with an independent limiting track comprises a stapler body 2 arranged on a stapler seat 1, the stapler body 2 is slidably engaged with the stapler seat 1, and both sides of the stapler body 2 corresponding to the rear end of the stapler seat 1 are provided with smoothly connected arc guide grooves 18 and longitudinal buckle grooves 19, and the stapler seat 1 is provided with a longitudinal limiting assembly for longitudinally locking the stapler body 2 through the arc guide grooves 18;

[0038] The longitudinal limit assembly includes a guide card seat 3, a longitudinal card pin 13 and a folding spring sheet 14. The longitudinal card pin 13 is arranged at the front end of the folding spring sheet 14 and matches the longitudinal buckle groove 19. The inner bottom end of the nail magazine seat 1 is symmetrically installed with a middle base 10, an outer base 8 and an inner base 9 from the inside to the outside. The middle base 10, the outer base 8 and the inner base 9 are combined with the nail magazine seat 1 and the nail magazine body 2 to form a matching installation of a sliding blade, and the nail magazine body 2 and the nail magazine seat 1 are matched to form a stable installation, so as to realize the stable nail removal of the nail magazine body 2;

[0039] A knife groove 5 is provided between the staple cartridge seat 1 and the middle of the staple cartridge body 2. Two sets of symmetrically distributed nail grooves 12 connected to the knife groove 5 are provided on the staple cartridge body 2. The staple cartridge body 2 and the staple cartridge seat 1 are connected to the stapler through mechanical transmission, and a nail stop seat is hingedly connected to the upper end corresponding to the staple cartridge seat 1. The staples to be sutured are loaded into the nail groove 12 in the staple cartridge body 2, and the knife pusher mechanism and the knife blade are arranged in the knife groove 5 to complete the suturing action of the staples. This is a conventional arrangement of those skilled in the art in the prior art and will not be described in detail here.

[0040] The nail magazine body 2 is provided with transverse buckle grooves 11 on both sides of the front end of the nail magazine seat 1. The nail magazine body 2 is provided with a transverse limit assembly 4 for transversely locking the nail magazine body 2 through the transverse buckle grooves 11. The transverse limit assembly 4 includes a fixing block 41 connected to the upper surface positions on both sides of the nail magazine seat 1. A hook-shaped spring piece 42 facing the rear side is installed on the fixing block 41. The rear end of the hook-shaped spring piece 42 is connected to a transverse latch 43 matching the transverse buckle groove 11.

[0041] The guide card seat 3 is connected to the upper end of the nail magazine seat 1, and an arc-shaped guide strip 17 that is engaged with the arc-shaped guide groove 18 is installed on the inner side of the guide card seat 3. The folding spring piece 14 passes through the extended front end of the guide card seat 3 and is connected to the longitudinal bayonet 13. A support block 15 is installed between the folding spring piece 14 and the guide card seat 3. The extended rear end of the folding spring piece 14 passing through the guide card seat 3 is connected to the thrust plate 16. The inner side of the front end of the thrust plate 16 is provided with a second guide inclined groove 22. The nail magazine body 2 is installed with a pushing component 20 for offsetting the longitudinal bayonet 13 corresponding to the extended rear end of the folding spring piece 14 passing through the guide card seat 3;

[0042] The pushing assembly 20 includes a long push rod 201 and a short push rod 202 which are rotatably arranged in the triangular grooves on both sides of the nail magazine body 2, wherein the pushing assembly 20 is hingedly arranged at the inner corners of the triangular grooves, one side of which can be aligned with the inner side of the long push rod 201, and the other side is aligned with the inner side of the short push rod 202, so that when the nail magazine body 2 moves horizontally, when the short push rod 202 abuts against the other inner side, the long push rod 201 deflects to the maximum angle and completes the pushing of the thrust plate 16, thereby forming the deflection of the folding spring sheet 14, and finally the folding spring sheet 14 drives the longitudinal latch 13 to engage with the longitudinal buckle groove 19 to complete the longitudinal buckle;

[0043] Basic principle: Figure 5 , Fig. 9 and Fig.10 To illustrate, when installing the staple cartridge body 2 of the laparoscopic stapler, the longitudinal limit assembly is combined with the transverse limit assembly 4 to complete the locking and fixing of the staple cartridge body 2, as follows:

[0044] The arc-shaped guide strip 17 that slides longitudinally is used to guide the nail magazine body 2 horizontally along the arc-shaped guide groove 18. During the horizontal sliding process of the nail magazine body 2, the long push rod 201 on the pushing assembly 20 is deflected outwardly during the reset and expansion process of the spring 21, and then deflected and pressed on the thrust plate 16. The thrust plate 16 can also complete the inward deviation of the other end through the support block 15 through the folding spring sheet 14, that is, drive the longitudinal bayonet 13 to buckle in the longitudinal buckle groove 19, thereby completing the longitudinal locking of the nail magazine body 2;

[0045] Then continue to push the staple cartridge body 2, and when the transverse latch 43 on the transverse limiting assembly 4 is vertically aligned with the transverse buckle groove 11, the hook-shaped spring piece 42 on the transverse latch 43 will bounce upwards when it is released from the limiting and pressing state of the staple cartridge body 2, thus driving the transverse latch 43 to buckle with the transverse buckle groove 11, so that the staple cartridge assembly 2 and the staple cartridge seat 1 form a stable transverse locking; under the double locking, when performing intraoperative operation of the laparoscopic stapler, the problem of the staples not being able to be correctly released or fixed due to the loose connection between the staple cartridge and the stapler is avoided;

[0046] It should be noted here that: during the lateral limiting process, the nail magazine body 2 moves, and the rubber block 6 on the nail magazine seat 1 gradually cooperates and buckles with the rubber groove 23, and at the synchronous time of buckling, the locking buckle 7 on the nail magazine seat 1 also buckles with the locking groove 25, that is, in the process of synchronous lateral and longitudinal limiting of the nail magazine body 2 and the nail magazine seat 1, the setting of the locking structure is also assisted, which can effectively improve the stability of the use of the nail magazine;

[0047] For this purpose, additional features are provided: a guide groove 44 is provided at the front end of the upper surface of the transverse latch 43, a smooth straight displacement groove 24 is provided at the lower side of the nail magazine body 2 corresponding to the transverse buckle groove 11, a glue groove 23 and a locking groove 25 are provided on both sides of the front end of the nail magazine body 2 close to the straight displacement groove 24, a glue block 6 is installed at the upper side of the nail magazine seat 1 corresponding to the glue groove 23, and both the glue groove 23 and the glue block 6 are diamond-shaped blocks, and a locking buckle 7 is installed at the upper side of the nail magazine seat 1 corresponding to the locking groove 25;

[0048] When the nail magazine body 2 completes the pressing of the transverse latch 43 through the guide groove 44 and the transverse latch 43 is vertically aligned with the linear groove 24, the transverse latch 43 releases its elastic potential energy and bounces upward and snaps into the transverse snap groove 11 along the linear groove 24 to form an auxiliary locking structure.

[0049] Embodiment 2: This embodiment further optimizes the structure of the longitudinal limit assembly in Embodiment 1:

[0050] The long push rod 201 and the short push rod 202 are in an angled shape, and the inner sides of the long push rod 201 and the short push rod 202 are aligned with the sides of the triangular groove. A spring 21 is embedded and installed on the outer side of the thrust plate 16 of the nail magazine body 2. The outer end of the spring 21 is connected to the inner side of the long push rod 201, and when the spring 21 is extended, the outer end of the long push rod 201 abuts against the second guide groove 22.

[0051] Structural advantages: Figure 5 and Figure 6 It should be noted that: during the horizontal movement of the staple cartridge body 2, the arc-shaped guide bar 17 and the arc-shaped guide groove 18 cooperate with each other to complete the horizontal movement. When the staple cartridge body 2 drives the pushing assembly 20 to move to the thrust plate 16, the long push rod 201 is driven to squeeze out of the thrust plate 16 under the elastic action of the spring 21, further driving the folding spring sheet 14 to complete the deflection, and finally driving the longitudinal latch 13 to buckle in the longitudinal buckle groove 19;

[0052] It is necessary to add that: refer to Fig. 9 As shown, during the horizontal movement of the nail magazine body 2, both sides of the rear ends of the nail magazine body 2 and the nail magazine seat 1 are structures of the same shape as the arc-shaped guide strip 17. Even if the long push rod 201 is always subjected to the elastic expansion effect of the spring 21, it is still limited by the close cooperation between the nail magazine body 2 and the nail magazine seat 1 until the long push rod 201 is separated from the contact with the nail magazine seat 1. At this time, the long push rod 201 directly contacts the second guide groove 22 on the thrust plate 16, and continues to move horizontally. When the long push rod 201 contacts the thrust plate 16 through one side of the second guide groove 22, it drives the folded spring sheet 14 to complete the deflection action, until the longitudinal latch 13 is buckled in the longitudinal buckle groove 19 to complete the longitudinal limiting process;

[0053] It should be noted again that the longitudinal limiting process and the lateral limiting process are completed synchronously, and the process of horizontal movement and tilting movement to insert the nail magazine body 2 is completed continuously, and then the longitudinal snapping and lateral snapping actions in the process of combined installation of the nail magazine body 2 and the nail magazine seat 1 are also completed continuously, further reducing the combined installation time of the nail magazine body 2.

[0054] Example 3: Reference Fig.11 As shown, this embodiment combines the technical contents of Embodiment 1 and Embodiment 2 to form the following installation method:

[0055] Step 1: Tilt insertion: Place the nail magazine body 2 with the sealing film into the middle and rear section of the nail magazine seat 1 from the end first, and push it inward at an angle. At this time, the nail magazine body 2 is kept sliding horizontally at a fixed tilt angle, and the end of the arc-shaped guide groove 18 is always kept horizontally aligned with the arc-shaped guide bar 17;

[0056] Step 2: Horizontal placement: When the arc-shaped guide bar 17 enters the arc-shaped guide groove 18, the nail magazine body 2 is immediately displaced from the inclined position to the horizontal position. During the gradual displacement, the arc-shaped guide bar 17 gradually overlaps with the arc-shaped guide groove 18. When the longitudinal limit is nearly completed, the transverse latch 43 gradually overlaps in the transverse buckle groove 11, and the rubber block 6 gradually overlaps in the rubber groove 23. The synchronous locking block 7 also gradually overlaps in the locking groove 25.

[0057] Step 3: Engagement: Continue to push horizontally, the long push rod 201 deflects outward during the reset and expansion process of the spring 21, and then deflects and squeezes on the thrust plate 16. The thrust plate 16 can also complete the inward displacement of the other end through the folding spring piece 14 by the support block 15, that is, drive the longitudinal bayonet 13 to engage in the longitudinal buckle groove 19; at the same time, the hook-type spring piece 42 on the transverse bayonet 43 pops up when it is separated from the limiting and pressing state of the nail magazine body 2, that is, drive the transverse bayonet 43 to engage with the transverse buckle groove 11; at this time, the transverse bayonet 43 and the transverse buckle groove 11 and the longitudinal bayonet 13 and the longitudinal buckle groove 19 are double-engaged to complete the installation.

[0058] In summary, in combination with Embodiment 1 and Embodiment 2, it can be seen that the locking structure setting of the lateral limit and the longitudinal limit can be used to realize the double locking installation between the stapler and the stapler, so as to realize the smooth suturing of the staples during the intraoperative operation of the laparoscopic stapler; and the purpose of continuous and smooth installation can be achieved by combining the synchronous lateral limit and the longitudinal limit with the continuous longitudinal buckle and the lateral buckle, thereby reducing the preoperative preparation time; the mutual use of the two realizes the bidirectional closed locking of the stapler with the dual independent "limiting tracks", effectively avoiding the problem that the staples cannot be correctly released or fixed due to the loose connection between the stapler and the stapler.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only specific implementation methods.

Claims

1. A stapler assembly in a laparoscopic stapler having an independent limiting track, comprising a stapler body (2) arranged on a stapler seat (1), characterized in that: The nail magazine body (2) is connected to the nail magazine seat (1) by sliding engagement, and the two sides of the nail magazine body (2) corresponding to the rear end of the nail magazine seat (1) are provided with smoothly connected arc guide grooves (18) and longitudinal buckle grooves (19), and the nail magazine seat (1) is provided with a longitudinal limit assembly for longitudinally locking the nail magazine body (2) through the arc guide groove (18); the longitudinal limit assembly comprises a guide seat (3), a longitudinal bayonet (13) and a folding spring sheet (14), and the longitudinal bayonet (13) is arranged at the front end of the folding spring sheet (14) and matches the longitudinal buckle groove (19); The nail magazine body (2) is provided with transverse buckle grooves (11) on both sides of the front end corresponding to the nail magazine seat (1); the nail magazine body (2) is provided with a transverse limit assembly (4) for transversely locking the nail magazine body (2) through the transverse buckle grooves (11); the transverse limit assembly (4) comprises a fixing block (41) connected to the upper surface positions on both sides of the nail magazine seat (1); a hook-shaped spring piece (42) facing the rear side is installed on the fixing block (41); and a transverse latch (43) matching the transverse buckle groove (11) is connected to the rear end of the hook-shaped spring piece (42).

2. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 1, characterized in that: The guide card seat (3) is connected to the upper end of the nail magazine seat (1), and an arc-shaped guide bar (17) that is engaged with the arc-shaped guide groove (18) is installed on the inner side of the guide card seat (3). The folding spring sheet (14) passes through the extended front end of the guide card seat (3) and is connected to the longitudinal latch pin (13). A support block (15) is installed between the folding spring sheet (14) and the guide card seat (3).

3. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 2, characterized in that: The extended rear end of the folding spring piece (14) passing through the guide seat (3) is connected to a thrust plate (16), and a second guide inclined groove (22) is provided on the inner side of the front end of the thrust plate (16).

4. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 3, characterized in that: A pushing assembly (20) for offsetting the longitudinal latch pin (13) is installed at the extended rear end of the nail magazine body (2) corresponding to the folding spring sheet (14) penetrating the guide holder (3), and the pushing assembly (20) comprises a long push rod (201) and a short push rod (202) rotatably arranged in the triangular grooves on both sides of the nail magazine body (2), the long push rod (201) and the short push rod (202) are in an angled shape, and the inner sides of the long push rod (201) and the short push rod (202) are aligned with the sides of the triangular grooves.

5. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 4, characterized in that: A spring (21) is embedded and installed on the outer side of the nail magazine body (2) corresponding to the thrust plate (16), and the outer end of the spring (21) is connected to the inner side of the long push rod (201), and when the spring (21) is extended, the outer end of the long push rod (201) abuts against the second guide groove (22).

6. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 1, characterized in that: A guide groove (44) is provided at the front end of the upper surface of the transverse latch (43), and a smooth straight displacement groove (24) is provided at the lower side of the nail magazine body (2) corresponding to the transverse buckle groove (11).

7. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 6, characterized in that: The front ends of the nail magazine body (2) close to the straight displacement groove (24) are provided with glue grooves (23) and locking grooves (25) in sequence, and the nail magazine seat (1) is provided with a glue block (6) on the upper side corresponding to the glue groove (23), and both the glue groove (23) and the glue block (6) are diamond-shaped blocks, and the nail magazine seat (1) is provided with a locking buckle (7) on the upper side corresponding to the locking groove (25).

8. The staple cartridge assembly of a laparoscopic stapler with an independent limiting track according to claim 1, characterized in that: The inner bottom end of the nail magazine seat (1) is symmetrically provided with a middle base (10), an outer base (8) and an inner base (9) in sequence from the inside to the outside, a sliding knife groove (5) is provided between the nail magazine seat (1) and the middle part of the nail magazine body (2), and the nail magazine body (2) is provided with two groups of symmetrically distributed nail grooves (12) connected to the sliding knife groove (5).

9. A method for installing a staple cartridge assembly in a laparoscopic stapler having an independent limiting track, using the staple cartridge assembly in a laparoscopic stapler having an independent limiting track as claimed in any one of claims 1 to 8, characterized in that: The steps include: Step 1: Insert at an angle: insert the nail magazine body (2) with the sealing film from the end into the middle and rear section of the nail magazine seat (1), and push it inward at an angle; Step 2: Horizontal insertion: After the arc-shaped guide bar (17) enters the arc-shaped guide groove (18), the nail magazine body (2) continues to be pushed in horizontally; Step 3: Buckle: The installation is completed until the transverse latch (43) and the transverse buckle groove (11) and the longitudinal latch (13) and the longitudinal buckle groove (19) are double-buckled.

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