Long anastomosis type stitching instrument with non-return structure

Abstract

The utility model relates to a long anastomosis type stitching instrument with a non-return structure, which comprises a handle and a main body provided with a grip, and an actuating cavity is arranged in the handle in a hollow manner; an actuator pivotally coupled to the handle, the actuator including a trigger portion and an actuating portion; the push block can slide in the main body along the transverse axis, the actuator rotates around a first shaft, and the actuating part drives the push block; the push block is provided with a non-return area, and the non-return area is formed by arranging a plurality of non-return teeth at equal intervals; the non-return component is meshed with the push block, and a meshing head is arranged on the non-return component and forms one-way locking with the non-return teeth, so that the push block is kept at any position of a push-out path; the nail box is installed at the front end of the main body, a plurality of suturing nails are arranged in the nail box, and the suturing nails can be pushed out to the front end of the nail box under the pushing-out action of the pushing block to suture soft tissue; and the reset auxiliary assembly acts on the non-return component and drives the non-return component to reset.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a long kiss-type suturing device with a non-return structure. Background Art

[0002] In traditional surgical operations, skin sutures are all performed with needle and thread. The suturing technique is demanding, time-consuming, and results in large tissue reactions and inflammation. In addition, the wound is difficult to align, leaving obvious scars after surgery and causing significant pain to the patient when the stitches are removed. Therefore, skin suture devices are widely used.

[0003] However, the current skin stapler is limited by its shape and has a relatively shallow range of action, which affects its applicability to a certain extent. Not only does the stapler box need to be improved, but the corresponding power structure also needs to be improved.

[0004] In the prior art, a manually driven power structure is usually provided with a spring for resetting. The disadvantage of the spring resetting is that the spring has a limited service life and cannot be smoothly reset after fatigue.

[0005] Furthermore, the power structure in the prior art usually pushes out the suture staples at once, and cannot stop the suture staples during the pushing process. That is, during the suture operation, if the suture staples have already been pushed out, the operation cannot be stopped and the suture staples must be pushed out completely. Unexpected situations during the operation cannot be handled immediately. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a long kiss-type stapler with a non-return structure.

[0007] The above-mentioned problem of the present invention is solved by the following technical solutions:

[0008] A long kiss type stapler with a non-return structure, comprising:

[0009] The handle comprises a main body formed with a grip, wherein an actuating chamber is hollowly provided in the handle;

[0010] an actuator pivotally coupled to the handle, the actuator comprising a trigger portion and an actuating portion;

[0011] A push block is slidable along a transverse axis within the main body, and the actuator rotates about a first axis, and the actuator drives the push block; a non-return area is provided on the push block, and the non-return area is formed by a plurality of non-return teeth arranged at equal intervals;

[0012] A non-return member engaged with the push block, wherein the non-return member is provided with an engaging head and a non-return tooth to form a one-way lock, so that the push block is kept at any position in the push path;

[0013] A staple cartridge, which is installed at the front end of the main body and internally arranged with a plurality of suture staples. The suture staples can be pushed out to the front end of the staple cartridge under the pushing action of the push block to suture soft tissues.

[0014] A reset assist component, which acts on the check member to drive the check member to reset.

[0015] The above technical solution is further configured as: the check teeth are set to a right-angled triangle structure, and the inclined meshing surface faces the front of the main body part.

[0016] The meshing head is provided with a sliding surface that cooperates with the meshing surface.

[0017] The above technical solution is further configured as: the check area further includes a climbing platform connected behind the last check tooth, and the height of the climbing platform is higher than the top of the check tooth; when the meshing head climbs along the climbing platform, the check member rotates around the second axis.

[0018] The above technical solution is further configured as: the check member is set as a rod body, and the two end parts of the rod body are respectively located on both sides of the second axis; when the meshing head climbs along the climbing platform, the rod body rotates around the second axis, and the driving head located on the other side of the second axis rotates accordingly and generates extrusion with the reset assist component.

[0019] The above technical solution is further configured as: the reset assist component includes an elastic reset member fixed on the main body part, and an elastic part is provided on the elastic reset member to hold the driving head.

[0020] The above technical solution is further configured as: the elastic part is an arc-shaped rib extending on the elastic reset member, and a contact platform is extended at the end of the arc-shaped rib. The driving head presses the contact platform, and the arc-shaped rib is bent.

[0021] The above technical solution is further configured as: the reset assist component further includes an auxiliary piece, and at least one limit groove is provided on the auxiliary piece; a first driving point that can extend into the limit groove is provided at the bottom of the push block.

[0022] The driving head of the check member is located in the limit groove.

[0023] The above technical solution is further configured as: a second driving point is further provided on the push block, and a stop rib is provided on the auxiliary piece. The second driving point drives the stop rib to reset the auxiliary piece.

[0024] The above technical solution is further configured as: the push block is provided with an actuating groove that can accommodate the actuating part to extend into, and anti-slip lines are provided on the groove wall of the actuating groove.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0026] 1. A check structure is provided for the pushing block, enabling the suture staple to stop at any time during the pushing process and remain in the current pushing position to cope with unexpected situations during the suture operation;

[0027] 2. A reset assist component is provided to reset the check structure, enabling the check structure to always perform one-way locking with the pushing block to ensure the check effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded structure schematic diagram of the present utility model.

[0029] Figure 2 It is a connection structure schematic diagram of the pushing block and the check member.

[0030] Figure 3 It is a structure schematic diagram of the engaging head contacting the climbing platform.

[0031] Figure 4 It is a structure schematic diagram of the engaging head located on the climbing platform.

[0032] Figure 5 It is a connection structure schematic diagram of the pushing block and the reset assist component.

[0033] Figure 6 It is a bottom structure schematic diagram of the connection between the pushing block and the reset assist component.

[0034] Marked on the drawings: 100, handle; 110, grip; 120, main body;

[0035] 200, actuator; 210, trigger part; 220, actuating part; 230, first rotating shaft;

[0036] 300, pushing component;

[0037] 400, staple cartridge;

[0038] 500, pushing block; 510, check teeth; 510.1, engaging surface; 520, push rod; 501, actuating groove; 530, climbing platform; 530.1, climbing inclined surface; 540, first driving point; 550, second driving point; 722, retaining rib; 501.1, anti-slip pattern;

[0039] 600, check member; 610, engaging head; 610.1, sliding surface; 620, second rotating shaft; 630, driving head;

[0040] 700, reset assist component; 710, elastic reset member; 711, main part; 712, arc-shaped rib; 713, contact platform; 720, auxiliary piece; 721, limiting groove;

[0041] 800, Adapter;

[0042] a, First shaft; b, Second shaft. Detailed implementation manner

[0043] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manner, structure, features and effects of the present utility model.

[0044] As Figures 1-6 shown, this embodiment discloses a long-nose type stapler with a check structure.

[0045] Including,

[0046] A handle 100, including a main body 120 formed with a grip 110, and an actuating chamber is provided hollow inside the handle 100;

[0047] An actuator 200 pivotally coupled to the handle 100, the actuator 200 including a trigger portion 210 and an actuating portion 220;

[0048] A pusher block 500 slidable along a transverse axis inside the main body 120, the actuator 200 rotates about a first shaft a, and the actuating portion 220 drives the pusher block 500; a check region is provided on the pusher block 500, and the check region is formed by a plurality of check teeth 510 arranged at equal intervals;

[0049] A check member 600 engaged with the pusher block 500, the check member 600 is provided with an engaging head 610 to form a one-way locking with the check teeth 510, so that the pusher block 500 is held at any position on the pushing path;

[0050] A staple cartridge 400, installed at the front end of the main body 120, with a plurality of staples arranged therein, and the staples can be pushed to the front end of the staple cartridge 400 under the pushing action of the pusher block 500 to suture soft tissues;

[0051] A reset assist component 700, the reset assist component 700 acts on the check member 600 to drive the check member 600 to reset.

[0052] The above is the basic solution of this embodiment.

[0053] Specifically referring to Figure 1 and Figure 2 shown, the handle 100 is set to a gun shape, the main body 120 is located above the grip 110, and the actuating chamber is located inside the main body 120;

[0054] The actuator 200 is pivotally connected to the handle 100 and is located at the connection position of the main body 120 and the grip 110; the trigger part 210 and the actuating part 220 are respectively located on both sides of the first rotating shaft 230, and the first axis a is the central axis of the rotating shaft;

[0055] When the user applies pressure to the trigger part 210 and pushes the trigger part 210 towards the grip 110 side, the actuator 200 rotates around the first axis a, that is, the trigger part 210 rotates closer to the grip 110, and the actuating part 220 rotates towards the side away from the grip 110;

[0056] The push block 500 is slidably arranged in the actuating chamber of the main body 120 and is connected to the actuating part 220 of the actuator 200. When the actuating part 220 rotates, it can push the push block 500 to slide forward;

[0057] There is an actuating groove 501 on the push block 500, and the actuating part 220 of the actuator 200 is stuck into the driving groove. When the actuator 200 rotates, the actuating part 220 generates a push on the groove wall of the actuating groove 501, thereby moving the push block 500.

[0058] In this embodiment, anti-slip lines 501.1 are provided on the groove wall of the actuating groove 501, and the anti-slip lines 501.1 are located on the rear side groove wall of the actuating groove 501. When the external force on the trigger part 210 disappears and the actuator 200 rotates back, the actuating part 220 contacts the anti-slip lines 501.1, slowing down the rotation speed.

[0059] When the push block 500 slides forward, it generates a push on the suture nails in the staple cartridge 400 and pushes out the suture nails;

[0060] During the forward movement of the push block 500, the engaging head 610 of the anti-backlash member 600 moves within the anti-backlash area on the push block 500 and meshes with the anti-backlash teeth 510 to form a one-way locking. That is, when the push block 500 stops at any position and the actuator 200 is released, the engaging head 610 cannot move backward relative to the anti-backlash teeth 510, thereby locking the anti-backlash area, and the push block 500 cannot move backward. Thus, the push block 500 can remain at any position on the pushing path;

[0061] When the pushing of one suture nail is completed, the actuating part 220 is released to reset it. At this time, the components in the staple cartridge 400 act on the push block 500 in the reverse direction and push the push block 500 back for reset;

[0062] In this embodiment, due to the one-way locking between the anti-backlash member 600 and the anti-backlash area, during the reset process, the anti-backlash member 600 needs to be separated from the anti-backlash area in order to reset the anti-backlash member 600 to the starting end of the anti-backlash area.

[0063] The reset assist component 700 assists in resetting the check member 600, disengaging the engagement head 610 of the check member 600 from the check area. After the push block 500 is completely reset, the check member 600 is then reset. At this time, the engagement head 610 of the check member 600 can be reset to the starting end of the check area and once again perform one-way locking with the push block 500.

[0064] In this embodiment, in order to increase the practicality of the stapler, a rotary adapter 800 is rotatably connected to the front end of the main body 120. A pushing component 300 is provided inside the adapter 800, and the push plate of the pushing component 300 can extend out of the adapter 800 and into the staple cartridge 400 to push the staples in the staple cartridge 400.

[0065] The applicant applied for an invention of a medical long-nosed stapler on February 26, 2019, which discloses a skin stapler including a staple cartridge. The staple cartridge is provided with a staple loading structure and a staple discharging structure. The staple cartridge includes an upper staple cartridge and a lower staple cartridge. The staple loading structure includes a retaining groove and a smooth chute. The front part of the lower staple cartridge is provided with a retaining groove, and the rear part of the retaining groove is a smooth groove. The smooth groove is lower than the retaining groove, and a curved arc surface is provided between the smooth groove and the retaining groove. The retaining groove and the smooth chute are provided with grooves. The staple discharging structure includes a staple retaining frame, a staple discharging bent piece, a staple hooking piece, and a staple pressing plate. A staple retaining frame and a staple discharging bent piece are provided in front of the retaining groove.

[0066] The staple cartridge 400 in this embodiment is consistent with the above structure, and its pushing method is also the same, so it will not be elaborated here; the push block 500 drives the pushing component 300, and the push plate of the pushing component 300 extends into the staple cartridge 400 to push the staples.

[0067] In order to limit the push block 500 and at the same time enable the head of the push block 500 to extend outside the main body 120 to drive the pushing component 300, in this embodiment, the head of the push block 500 is set as a push rod 520. The push rod 520 can extend outside the main body 120 and at the same time extend into the adapter 800 to drive the pushing component 300, while the main body part of the push block 500 is limited in the actuating chamber.

[0068] Among them, the check teeth 510 are set in a right triangle structure, and the inclined engagement surface 510.1 faces the front of the main body part 120.

[0069] The engagement head 610 is provided with a sliding surface 610.1 that cooperates with the engagement surface 510.1.

[0070] Specifically refer to Figure 2As shown, when the engaging head 610 and the check tooth 510 come into contact for one-way locking, the sliding surface 610.1 and the engaging surface 510.1 are in close fit, and the sliding surface 610.1 can slide upward along the engaging surface 510.1; while the end surface of the engaging head 610 is a vertical surface and contacts the vertical surface of the check tooth 510, so it cannot move horizontally in the reverse direction, thus achieving one-way locking.

[0071] When the push block 500 moves forward, the engaging head 610 moves backward relative to the push block 500. When the engaging head 610 moves to the rear of the last check tooth 510, at this time, the head of the suture nail is pushed out of the staple cartridge 400, that is, at least part of the suture nail is embedded in the surface of the soft tissue, specifically referring to Figure 3 shown.

[0072] In this embodiment, the check region further includes a climbing platform 530 connected to the rear of the last check tooth 510, and the height of the climbing platform 530 is higher than the top of the check tooth 510; when the engaging head 610 climbs along the climbing platform 530, the check member 600 rotates around the second axis b.

[0073] Specifically referring to Figure 2 shown, the climbing slope 530.1 of the climbing platform 530 has the same inclination as the engaging surface 510.1 of the check tooth 510, and can cooperate with the sliding surface 610.1 of the engaging head 610, so that the sliding surface 610.1 climbs along the slope on the climbing slope 530.1;

[0074] The check member 600 is connected to the inner wall of the main body 120 through the second rotating shaft 620. When the engaging head 610 climbs on the climbing platform 530, the check member 600 rotates around the central axis of the second rotating shaft 620, that is, rotates around the second axis b;

[0075] During this process, the push block 500 continues to push out, and the suture nail is driven into the soft tissue.

[0076] In this embodiment, the check member 600 is set as a rod body, and the two ends of the rod body are respectively located on both sides of the second axis b; when the engaging head 610 moves along the climbing platform 530, the rod body rotates around the second axis b, and the driving head 630 located on the other side of the second axis b rotates accordingly and generates extrusion with the reset auxiliary component 700.

[0077] Specifically referring to Figure 4 shown, the check member 600 is set as an L-shaped rod body, the second rotating shaft 620 is arranged at the turning part, and the two side ends are respectively set as the engaging head 610 and the driving head 630. The engaging head 610 is connected to the push rod 520, and the driving head 630 is connected to the reset auxiliary component 700;

[0078] When the engaging head 610 rotates clockwise under the action of the climbing platform 530 , the driving head 630 also rotates clockwise, squeezing the reset auxiliary component 700 , so that the reset auxiliary component 700 has the driving force to drive the driving head 630 to reset.

[0079] Specifically, in this embodiment, the reset auxiliary component 700 further includes an elastic reset member 710 fixed on the main body 120 , and the elastic reset member 710 is provided with an elastic portion to support the driving head 630 .

[0080] The elastic portion is an arcuate rib 712 extending from the elastic reset member 710 . A contact platform 713 is extended from the end of the arcuate rib 712 . The driving head 630 presses the contact platform 713 , causing the arcuate rib 712 to bend.

[0081] Specific reference Figure 5 As shown, the reset auxiliary component 700 includes an elastic reset member 710, and the main part 711 of the elastic reset member 710 is fixed to the main body 120, and the arc rib 712 is arranged at the end of the main part 711 and can produce a small amount of bending deformation relative to the main part 711; in order to ensure the contact between the driving head 630 and the elastic part, a contact platform 713 is extended from the end of the arc rib 712, and the driving head 630 is in contact with the contact platform 713 and squeezes the contact platform 713, so that the arc rib 712 is compressed and bent.

[0082] Preferably, the end surface of the contact platform 713 that contacts the driving head 630 is set to be a flat surface. Compared with the curved surface, the contact between the flat surface and the driving head 630 is more stable and not easy to slide.

[0083] In this embodiment, the auxiliary reset member further includes an auxiliary piece 720, the auxiliary groove is provided with at least one limiting groove 721, and the bottom of the push block 500 is provided with a first driving point 540 that can extend into the limiting groove 721;

[0084] The driving head 630 of the anti-return component 600 is located in the limiting groove 721 .

[0085] Specific reference Figure 6 As mentioned, in this embodiment, the limiting groove 721 is provided on the rear side of the auxiliary piece 720 , and the first driving point 540 is located at a position on the lower end surface of the push block 500 close to the rear end;

[0086] When the engaging head 610 climbs on the climbing platform 530, the push block 500 moves forward, and the first driving point 540 moves with the push block 500 to the front end of the limiting groove 721 and contacts the groove wall at the front end of the limiting groove 721. At this time, the push block 500 continues to move forward, and the first driving point 540 generates a thrust on the groove wall, driving the auxiliary piece 720 to move forward together.

[0087] In this embodiment, the first driving point 540 is a protruding structure disposed at the bottom of the pushing block 500 .

[0088] In this embodiment, the driving head 630 extends into the limiting groove 721. When the limiting groove 721 moves forward with the auxiliary plate 720, the rear end groove wall of the limiting groove 721 generates a thrust on the driving head 630, pushing the driving head 630 to move; then, the non-return member 600 continues to rotate around the second axis b, so that the engaging head 610 is lifted from the climbing platform 530 and disengaged from the push block 500.

[0089] In this embodiment, the distance between the first driving point 540 and the front end wall of the limiting groove 721 can be set so that the check tooth 510 can be lifted during the climbing process on the climbing platform 530, or the check tooth 510 can be lifted after climbing to the top of the climbing platform 530.

[0090] In other embodiments, a platform is provided on the rear side of the climbing platform 530. When the engaging head 610 climbs to the top and enters the platform area, the auxiliary piece 720 moves, thereby driving the non-return member 600 to rotate, so that the engaging head 610 is disengaged from the platform.

[0091] After the suture staple is pushed out, the trigger part 210 is released. At this time, the pushing component 300 generates a reverse thrust on the pushing block 500, causing the pushing block 500 to move backward and reset. During the reset process, the auxiliary piece 720 is driven to reset. In this embodiment, a second driving point 550 is also provided on the pushing block 500, and a retaining rib 722 is provided on the auxiliary piece 720. The second driving point 550 drives the retaining rib 722 to reset the auxiliary piece 720.

[0092] Specific reference Figure 6 As shown, the second driving point 550 is located at the front of the bottom of the push block 500, and the front of the auxiliary piece 720 is provided with an empty slot, and the second driving point 550 is located in the empty slot; a retaining rib 722 is formed between the empty slot and the limiting slot 721;

[0093] During the forward movement of the push block 500, the second driving point 550 moves linearly in the empty slot. During the reset process, the push block 500 drives the first driving point 540 and the second driving point 550 to move backward. When the second driving point 550 moves to the rear end of the empty slot, that is, contacts the front end surface of the retaining rib 722, the push block 500 continues to move backward, and the second driving point 550 drives the retaining rib 722 to move, thereby driving the auxiliary piece 720 to move backward and reset.

[0094] When the auxiliary piece 720 is reset, the limiting effect of the limiting groove 721 on the driving head 630 of the non-return component 600 disappears, the arc rib 712 is reset, driving the contact platform 713 to reset, lifting the driving head 630, driving the non-return component 600 to rotate, and the engaging head 610 rotates downward and resets to the front end of the non-return area.

[0095] This embodiment also provides a control method for a long kiss type stapler, comprising the following steps:

[0096] S1, controlling the actuator 200 to rotate about the second axis b, so that the trigger portion 210 moves toward the handle 110, and the actuating portion 220 drives the push block 500 to move;

[0097] S2. The push block 500 moves toward the front of the main body 120 under the action of the actuating portion 220. During the movement, the anti-return teeth 510 on the push block 500 and the meshing head 610 of the anti-return member 600 move relative to each other, forming a one-way locking.

[0098] S3, the engaging head 610 of the anti-return member 600 moves to the end of the anti-return area, and the front end of the suture staple is pushed out and embedded into the soft tissue surface;

[0099] S4. The trigger portion 210 is continuously rotated, the push block 500 is continuously pushed out, the engaging head 610 climbs on the climbing slope 530.1, the anti-return member 600 rotates around the second axis b, the driving head 630 exerts pressure on the arcuate rib 712, and the arcuate rib 712 bends and deforms;

[0100] S5: The first driving point 540 on the pushing block 500 reaches the front end of the limiting groove 721 and pushes the groove wall of the limiting groove 721, driving the auxiliary piece 720 to move together;

[0101] S6. The auxiliary piece 720 drives the driving head 630, causing the anti-return member 600 to rotate around the second axis b, the engaging head 610 and the pushing block 500 to disengage, and the suture staple is completely pushed out.

[0102] S7, releasing the trigger portion 210, the pushing assembly 300 generates a reverse drive on the pushing block 500, driving the pushing block 500 to reset;

[0103] S8. The push block 500 drives the auxiliary piece 720 to reset, and the limiting effect of the auxiliary piece 720 on the anti-return component 600 disappears. The arc-shaped rib 712 lifts the driving head 630 to reset the anti-return component 600.

[0104] In step S1, the actuating portion 220 is inserted into the actuating slot 501, pushing the front end wall of the actuating slot 501, thereby driving the pushing block 500 to move forward;

[0105] In step S2, the front end face of the engaging head 610 is a vertical plane, and the rear end face of the check tooth 510 is also a vertical plane. The two vertical planes are in close contact, preventing the engaging head 610 from moving forward beyond the check tooth 510, thus achieving one-way locking.

[0106] Step S4 is the continuous pushing process of the staples. For details, refer to Figure 4 as shown in

[0107] Steps S4, S5, and S6 can be carried out simultaneously or sequentially.

[0108] In steps S7 and S8, there is a very small time difference between the reset of the push block 500 and the reset of the auxiliary piece 720.

[0109] The above is only a preferred embodiment of the present invention and does not impose any formal restrictions on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or equivalents within the scope of the technical solution of the present invention by using the disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A long kiss-type stapler with a non-return structure, characterized in that: include, A handle (100) includes a main body (120) formed with a grip (110), wherein an actuating chamber is hollowly provided in the handle (100); an actuator (200) pivotally coupled to the handle (100), the actuator (200) comprising a trigger portion (210) and an actuating portion (220); A push block (500) is slidable along a transverse axis within a main body (120); an actuator (200) rotates about a first axis (a), and an actuating portion (220) drives the push block (500); a non-return area is provided on the push block (500), and the non-return area is formed by a plurality of non-return teeth (510) arranged at equal intervals; a non-return member (600) engaged with the push block (500), wherein the non-return member (600) is provided with an engaging head (610) and forms a one-way lock with the non-return tooth (510), so as to keep the push block (500) at any position in the push path; The staple box (400) is mounted on the front end of the main body (120) and contains a plurality of suture staples arranged therein. The suture staples can be pushed out to the front end of the staple box (400) by the pushing action of the push block (500) to suture the soft tissue. A reset auxiliary component (700) acts on the anti-return member (600) to drive the anti-return member (600) to reset.

2. The long kiss type stapler with a non-return structure according to claim 1, characterized in that: The non-return teeth (510) are arranged in a right-angled triangle structure, and the inclined meshing surface (510.1) faces the front of the main body (120); The meshing head (610) is provided with a sliding surface (610.1) that cooperates with the meshing surface (510.1).

3. The long kiss type stapler with a non-return structure according to claim 1 or 2, characterized in that: The non-return area also includes a climbing platform (530) connected to the rear of the last non-return tooth (510), and the height of the climbing platform (530) is higher than the top of the non-return tooth (510); when the engaging head (610) climbs along the climbing platform (530), the non-return component (600) rotates around the second axis (b).

4. The long kiss type stapler with a non-return structure according to claim 2, characterized in that: The anti-return component (600) is configured as a rod body, and the two ends of the rod body are respectively located on both sides of the second axis (b); when the engaging head (610) climbs along the climbing platform (530), the rod body rotates around the second axis (b), and the driving head (630) located on the other side of the second axis (b) rotates accordingly, and is squeezed with the reset auxiliary component (700).

5. The long kiss type stapler with a non-return structure according to claim 4, characterized in that: The reset auxiliary component (700) includes an elastic reset member (710) fixed on the main body (120), and an elastic portion is provided on the elastic reset member (710) to support the driving head (630).

6. The long kiss type stapler with a non-return structure according to claim 5, characterized in that: The elastic portion is an arc-shaped rib (712) extending from the elastic reset member (710), and a contact platform (713) is extended from the end of the arc-shaped rib (712). The driving head (630) presses the contact platform (713), causing the arc-shaped rib (712) to bend.

7. The long kiss type stapler with a non-return structure according to claim 5, characterized in that: The reset auxiliary component (700) further includes an auxiliary plate (720), the auxiliary plate (720) is provided with at least one limiting groove (721), and the bottom of the push block (500) is provided with a first driving point (540) capable of extending into the limiting groove (721); The driving head (630) of the non-return component (600) is located in the limiting groove (721).

8. The long kiss type stapler with a non-return structure according to claim 7, characterized in that: The push block (500) is further provided with a second driving point (550), and the auxiliary piece (720) is provided with a retaining rib (722). The second driving point (550) drives the retaining rib (722) to reset the auxiliary piece (720).

9. The long kiss type stapler with a non-return structure according to claim 1, characterized in that: The push block (500) is provided with an actuating groove (501) capable of accommodating the actuating portion (220) extending therein, and the groove wall of the actuating groove (501) is provided with anti-slip grooves (501.1).

Images