CN218338486U - Nail bin assembly for preventing empty nail bin from being fired and cutting anastomat - Google Patents

Abstract

The utility model relates to a nail storehouse subassembly and cutting anastomat of air defense nail storehouse percussion, cutting anastomat include nail storehouse subassembly, and nail storehouse subassembly includes nail storehouse body, cutter, slip subassembly and ejector pin spare. The one-way stop piece is used for being matched with the sliding assembly and only used for preventing the cutter from being automatically switched to the firing state from the locking state without obstructing the cutter from being switched to the locking state from the firing state. When the cutter is used, the suture nail component is firstly required to be installed, and the suture nail component can push the nail pushing piece, so that the cutter is automatically switched from a locking state to a firing state. When the cutting is finished and the cutter is reset, the nail pushing piece still stays at the far end of the nail bin assembly due to no connection between the nail pushing piece and the cutter. I.e. by the pusher to switch the sliding assembly from the first position to the second position, so that the cutter cannot be unlocked. Namely, the sliding component can effectively prevent the risk that the cutter is triggered by mistake, and the tissue is cut and can not be sutured.

Description

Nail bin assembly for preventing empty nail bin from being triggered and cutting anastomat

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to a nail bin assembly and a cutting anastomat for triggering an air-defense nail bin.

Background

The cutting stapler is widely applied to one of instruments of minimally invasive surgery, and is mainly used for cutting, crossing and anastomosing tissues in open surgery of abdominal surgery, gynecology, pediatrics and thoracic surgery.

Cutting staplers generally include a powered handle and a cartridge assembly, wherein the cartridge assembly includes a cutting knife and a cartridge body. When the cutting anastomat is used, an operator operates the power handle, so that the tissue can be cut by the cutter, and the cut tissue can be sutured through the nail bin body.

However, the staple cartridge body needs to consume the staples for suturing during suturing, the staples are consumed after one use, and the staples need to be reinstalled when the staple cartridge body is used again. Thus, there is a risk that existing cutting staplers may be reused after a single use without reinstalling the staple assembly, resulting in the tissue being severed and not stapled.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a staple cartridge assembly and a cutting stapler for preventing the empty staple cartridge from being fired, aiming at the problem that the existing cutting stapler is reused after being used once without installing staples again.

A staple cartridge assembly of a staple cartridge assembly that prevents empty staple cartridge firing, comprising:

a staple cartridge body;

the cutting knife is connected with the nail bin body in a sliding mode along a first direction, a one-way stop piece is arranged on the cutting knife, and the cutting knife has a locking state and a firing state;

the sliding assembly is connected with the nail bin body in a sliding mode along the second direction and is positioned at the near end of the nail bin body; the sliding assembly has a first position and a second position along a second direction; when the one-way stop piece is matched with the sliding component at the first position, the cutter is in a locking state; and

the nail pushing piece is connected with the nail bin body in a sliding mode along the first direction and located on one side of the far end of the cutter, and when the nail pushing piece moves towards the near end, the sliding assembly can be pushed to slide from the first position to the second position, so that the cutter is switched from a locking state to a firing state.

In one embodiment, the slide assembly comprises:

the sliding block is arranged on at least one side of the cutter along a third direction, the sliding block is connected with the nail bin seat of the nail bin body in a sliding mode along the second direction, when the nail pushing piece moves towards the near end, the sliding block can be pushed to slide from the first position to the second position, and the third direction is perpendicular to the first direction and the second direction at the same time; and

and the elastic piece is arranged between the sliding block and the nail bin seat along the second direction and is used for enabling the sliding assembly to slide from the second position to the first position.

In one embodiment, the sliding assembly further comprises a moving seat disposed on the magazine seat, the slider is disposed on the moving seat, and the elastic member is disposed between the slider and the moving seat along the second direction.

In one embodiment, the moving seat is provided with a pushing structure for pushing the sliding block to move, and the sliding block is provided with an abutting structure matched with the pushing structure; when the nail pushing piece moves towards the near end to push the moving seat, the abutting structure can be matched with the abutting structure, so that the sliding block is switched from the first position to the second position.

In one embodiment, the abutting structure is a first inclined surface, the abutting structure is a second inclined surface, and the inclination angles of the first inclined surface and the second inclined surface are the same.

In one embodiment, the second ramp slopes to a side away from the cartridge seat in a distal to proximal direction of the cartridge body.

In one embodiment, one of the magazine base and the slider is provided with a projection, and the other is provided with a groove matched with the projection, and the extending direction of the groove is along the second direction.

In one embodiment, the cutter further has a retracted state capable of pressing the sliding assembly to switch from the first position to the second position when the one-way stopper moves from a side at the distal end of the sliding assembly to a side at the proximal end of the sliding assembly;

when the one-way stop piece moves to one side of the proximal end of the sliding assembly, the sliding assembly can be switched from the second position to the first position under the action of the self elasticity of the elastic piece, so that the cutter is switched from a retraction state to a locking state.

In one embodiment, the one-way stop member is provided with a stop surface and a first pushing surface, the stop surface is positioned on one side of the far end of the one-way stop member, and the first pushing surface is positioned on one side of the near end of the one-way stop member;

the sliding assembly is provided with a second abutting surface matched with the first abutting surface, and the first abutting surface inclines towards one side far away from the nail bin seat along the direction from the far end to the near end of the nail bin body;

when the cutter is switched from the retraction state to the locking state, the first abutting surface is used for being matched with the second abutting surface.

A cutting anastomat comprises a handle and a nail bin assembly for preventing the nail bin from being fired, wherein the handle is connected with one side of the near end of a nail bin body.

Above-mentioned nail storehouse subassembly and cutting anastomat of air-defense nail storehouse percussion through setting up one-way stop member, sliding assembly and nail pushing member, one-way stop member is used for cooperating with sliding assembly, only is used for preventing that the cutter from switching over to the percussion state from the lock-out state automatically, and does not hinder the cutter from switching over to the lock-out state from the percussion state. The nail pushing piece is used for enabling the cutting knife to be automatically switched from the locking state to the firing state.

Specifically, when the nail bin assembly is in an initial state, the sliding assembly is in a first position, and the sliding assembly can be matched with the one-way stop piece on the cutter at the moment, so that the cutter is in a locking state. When the stapler is used, the staple module is firstly required to be installed, namely the staple module can push the sliding module through the staple pushing piece, so that the sliding module is switched from the first position to the second position, namely at the moment, the sliding module cannot be matched with the one-way stop piece on the cutter, and the sliding module can be switched from the locking state to the firing state. After cutting is finished, the cutter can be automatically switched to a locking state from a firing state due to the fact that the one-way stop piece has no stop function. When the suture nail component is not installed and the cutter is required to be pushed again, the nail pushing piece is positioned on one side of the cutter close to the far end of the nail bin body when the suture nail component is used for the last time, and the cutter moves from the near end of the nail bin body to the far end of the nail bin body to push the nail pushing piece to move simultaneously in the cutting process. When the cutting knife is reset after cutting is finished, the nail pushing piece still stays at the far end of the nail bin body due to the fact that the nail pushing piece is not connected with the cutting knife. I.e. by pushing the staple so that the sliding assembly switches from the first position to the second position, so that the cutter cannot be unlocked. Namely, the sliding component can effectively prevent the risk that the tissue is cut and can not be sutured due to the fact that the cutter is triggered by mistake.

Drawings

FIG. 1 is a schematic view of the staple cartridge assembly shown with the anvil removed in one embodiment;

FIG. 2 is an exploded view of the staple cartridge assembly of FIG. 1 including a needle anvil;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 4 is a schematic view of the staple assembly shown in the uninstalled configuration (with the knife in the locked condition);

FIG. 5 is a schematic view of the knife being switched from a locked position to a fired position (i.e., the slide assembly being switched from the first position to the second position) after the staple assembly has been installed;

FIG. 6 is a schematic view of the knife in the cocked position;

fig. 7 is a schematic structural view of the cutter when switching from the retracted state to the locked state.

Reference numerals:

10-a cartridge body; 11-nail bin seat; 11-1-grooves; 12-a staple assembly; 13-needle anvil;

20-a cutter; 21-one-way stop; 21-1-stop surface; 21-2-a first pushing surface; 30-a nail pushing piece;

100-a sliding assembly; 110-a slide block; 111-an abutment structure; 113-a bump; 114-a second pushing surface; 120-an elastic member; 130-a movable seat; 131-push against structure.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1 and 2, an embodiment of the present invention provides a nail magazine assembly, which includes a nail magazine body 10, a cutter 20, a sliding assembly 100, and a nail pushing member 30. The cutting knife 20 is connected with the nail bin body 10 in a sliding mode along a first direction, a one-way stop piece 21 is arranged on the cutting knife 20, and the cutting knife 20 has a locking state and a triggering state. The sliding assembly 100 is connected with the cartridge body 10 in a sliding manner along a second direction and is positioned at the proximal end of the cartridge body 10, and the sliding assembly 100 has a first position and a second position along the second direction; when the one-way stopper 21 is engaged with the sliding assembly 100 in the first position, the cutting knife 20 is in a locked state. The staple pusher 30 is slidably connected to the cartridge body 10 along a first direction and located at one side of the distal end of the cutting knife 20, and when the staple pusher 30 moves towards the proximal end, the sliding assembly 100 can be pushed to move from the first position to the second position, so that the cutting knife 20 is switched from the locked state to the fired state.

It should be noted that the cutting stapler includes a staple cartridge assembly and a handle arranged at one end of the staple cartridge assembly, and an operator can control the cutting knife 20 to cut and the staple cartridge body 10 to suture by operating the handle. For convenience of describing the specific structure of the cartridge assembly, the proximal end and the distal end are introduced, and specifically, the proximal end and the distal end are relative to the operator, and the end close to the operator (i.e. the operating handle) in the first direction is the proximal end, and the end far away from the operator (i.e. the operating handle) in the first direction is the distal end, for example, the cartridge assembly is located on one side of the distal end of the handle.

The first direction is an extending direction of the staple cartridge body 10, the second direction is a sliding direction of the sliding assembly 100, the second direction is disposed at an angle with the first direction, the angle between the first direction and the second direction is 0 ° to 180 °, for example, the second direction may be perpendicular to the first direction or disposed at 120 ° with the first direction. Referring to fig. 1, the first direction may be an X-axis direction and the second direction may be a Y-axis direction.

The cartridge body 10 includes a cartridge holder 11, a staple assembly 12 for being clamped to the cartridge holder 11, and an anvil 13 rotatably connected to one end of the cartridge holder 11. The staple module 12 is provided with a knife slot and a staple pushing slot along a first direction. In actual use, the staple assembly 12 is first mounted on the cartridge housing 11 and is positioned on the distal side of the cutting blade 20. When installed, staple assembly 12 and staple pusher 30 are tilted relative to cartridge holder 11 and pushed proximally along cartridge holder 11, and then staple assembly 12 is pressed into cartridge holder 11. During cutting, the cutting knife 20 slides in a first direction within the knife slot while pushing the staple pusher 30 to move within the staple assembly 12, the staple pusher 30 serving to push out the staples in the staple assembly 12 for stapling.

In this embodiment, the first position may be farther from the cartridge seat than the second position. Referring to fig. 4, in an initial state of the cartridge assembly being not installed, the sliding assembly 100 is in a first position, and the sliding assembly 100 can be engaged with the one-way stop 21 on the cutting knife 20, so that the cutting knife 20 is in a locked state.

At the beginning of use, referring to fig. 5, the staple module 12 is first installed, that is, the staple module 12 can push the sliding module 100 through the staple pusher 30, so that the sliding module 100 is switched from the first position to the second position, that is, at this time, the sliding module 100 cannot be matched with the one-way stop 21 on the cutter 20, and the cutter 20 can be switched from the locking state to the firing state.

Since the staple pusher 30 is located at one side of the distal end of the cutter 20, referring to fig. 6, during the movement of the cutter 20 from the proximal end to the distal end to perform cutting, the cutter 20 pushes the staple pusher 30 while moving. When the cutting is completed, referring to fig. 7, the one-way stopper 21 has no stopping function, that is, the cutting knife 20 can be retracted from the distal end of the cartridge body 10 to the proximal end of the cartridge body 10 until the cutting knife returns to the locking position again. However, during the retraction process, the staple pusher 30 still stays at the distal end of the cartridge body 10 because there is no connection between the staple pusher 30 and the cutter 20.

At this time, if the staple assembly 12 is not remounted, i.e., the pusher 30 cannot be returned to the proximal end of the cartridge body 10, the slider assembly 100 cannot be switched from the first position to the second position by the pusher 30, i.e., the knife 20 can only be in the locked state. Therefore, the risk that the tissue is cut and can not be sutured due to the fact that the cutter 20 is triggered by mistake can be effectively prevented.

In some embodiments, the sliding assembly 100 includes a slider 110 and a resilient member 120. The sliding block 110 is connected with the nail bin seat 11 of the nail bin body 10 in a sliding manner along the second direction, the sliding block 110 is arranged on at least one side of the cutter 20 along the third direction, and when the cutter is in the locking state, the sliding block is positioned at the far end of the one-way stop piece; the staple pusher 30, when moved proximally, can push the sled 110 to slide from a first position to a second position, and a third direction perpendicular to both the first and second directions, which can be the Z-axis direction, as shown in fig. 1. An elastic member 120 is disposed between the sled 110 and the cartridge holder 11 in the second direction for sliding the sliding assembly 100 from the second position to the first position.

Wherein, because at least one side of the cutting knife 20 is provided with the sliding block 110 along the third direction, and the sliding block 110 is used for matching with the one-way stop piece 21 at the first position, when the sliding block 110 is positioned at one side of the cutting knife 20, the one-way stop piece 21 can be arranged at the same side of the cutting knife 20; when the sliding blocks 110 are simultaneously arranged on both sides of the cutting knife 20, the one-way stoppers 21 may be respectively disposed on both sides of the cutting knife 20 for matching the one-way stoppers 21 with the sliding blocks 110.

When the cutting knife 20 is in the locked state, the slider 110 is located at the distal end of the one-way stopper 21, and at the same time, due to the elastic force of the elastic member 120 to the slider 110, the slider 110 can be stabilized at the first position, and when the cutting knife 20 moves distally, the slider 110 stops the one-way stopper 21 on the cutting knife 20, thereby stopping the distal movement of the cutting knife 20.

When the staple assembly 12 is installed, the staple assembly 12 can push the slider 110 through the staple pushing component 30, and the slider 110 can be switched from the first position to the second position, so that the elastic component 120 is compressed, i.e. at this time, the slider 110 has no stopping effect on the one-way stopper 21, and the cutter 20 can move towards the far end, i.e. can be unlocked.

When the cutter 20 is in a cocked state, that is, the cutter 20 pushes the staple pusher 30 to move distally, so that no force is applied to the slider 110 by the staple pusher 30, at this time, the slider 110 can return the slider 110 from the second position to the first position under the action of its own elastic force.

Wherein the staple pusher 30 can directly or indirectly push the shoe 110 to slide from the first position to the second position.

In one embodiment, the staple pusher 30 indirectly urges the shoe 110 to slide from the first position to the second position. Specifically, the sliding assembly 100 further includes a moving seat 130, the moving seat 130 is disposed on the magazine seat 11, and the sliding block 110 is disposed on the moving seat 130, i.e., the nail pusher 30 pushes the sliding block 110 to slide from the first position to the second position through the moving seat 130. The elastic member 120 is disposed between the slider 110 and the movable base 130 in the second direction, and is used for enabling the slider 110 to return to the first position from the second position when the slider 110 is not stressed.

Further, referring to fig. 4, the movable base 130 has a pushing structure 131 for pushing the sliding block 110 to move, and the elastic element 120 is disposed between the sliding block 110 and the movable base 130 along the second direction. The sliding block 110 has an abutting structure 111 cooperating with the abutting structure 131. When the nail pusher 30 moves proximally to push the movable seat 130, the abutting structure 131 can cooperate with the abutting structure 111 to switch the slider 110 from the first position to the second position.

Specifically, the abutting structure 131 is a first inclined surface, the abutting structure 111 is a second inclined surface, and the inclined angles of the first inclined surface and the second inclined surface are the same.

In the present embodiment, the staple module 12 is installed such that when the staple pusher 30 moves from the distal end to the proximal end of the cartridge holder 11 along the first direction, the staple pusher 30 can push the movable holder 130 simultaneously, and since the movable holder 130 abuts against the slider 110 through the first inclined surface and the second inclined surface, the staple pusher 30 has a force from the distal end to the proximal end along the first direction and a force along the second direction to the slider 110 simultaneously, and since the slider 110 is slidably connected with the movable holder 130 along the second direction, the slider 110 can only slide along the second direction.

Further, in the distal to proximal direction, the second ramp slopes to the side away from the cartridge seat 11.

In the present embodiment, since the second inclined surface is inclined to a side away from the magazine base 11 in a direction from the distal end to the proximal end, that is, after the staple module 12 is installed, the staple pusher 30 exerts a vertically downward force on the slider 110, so that the slider 110 moves downward to the second position, at which time the elastic member 120 is compressed, the slider 110 can avoid the one-way stopper 21, that is, the cutting knife 20 can be switched from the locked state to the fired state.

In another embodiment, the sled 110 is directly slidably coupled to the cartridge holder 11 in the second direction, and the staple pusher 30 can also directly push the sled 110 to slide from the first position to the second position. For example, a first inclined surface is provided directly on the staple pusher 30, which first inclined surface on the staple pusher 30 cooperates with a second inclined surface on the shoe 110. I.e., installing staples, also enables the sled 110 to slide in the second direction.

In some embodiments, in conjunction with FIG. 3, one of the magazine base 11 and the slider 110 is provided with a protrusion 113, and the other is provided with a groove 11-1 cooperating with the protrusion 113, the groove 11-1 extending in a second direction. I.e., by the engagement of the protrusions 113 with the grooves 11-1, for slidably coupling the shoe 110 with the cartridge seat 11 in the second direction. Meanwhile, the lug 113 is matched with the groove 11-1, so that the situation that the slider 110 rotates due to the strong extrusion of the cutter 20 and the slider 110 in the violent percussion process, the irreversible blocking scene is caused, and the reliability of the product is improved.

In one embodiment, the slider 110 is provided with a protrusion 113, and the cartridge holder 11 is provided with a groove 11-1 matching with the protrusion 113.

In another embodiment, the magazine base 11 may be provided with a protrusion 113, and the slider 110 may be provided with a groove 11-1 engaged with the protrusion 113.

In some embodiments, with reference to figure 7, the cutter 20 also has a retracted condition, since it needs to be able to be retracted back to the locked condition after use. When the cutting knife 20 is switched from the retracted state to the locked state, the cutting knife 20 drives the one-way stop 21 to move from the side at the far end of the sliding assembly 100 to the side at the near end of the sliding assembly 100, and in the moving process, the sliding assembly 100 can be pressed to be switched from the first position to the second position. When the one-way stopper 21 moves to one side of the proximal end of the sliding member 100, the sliding member 100 can be switched from the second position to the first position by the self-elastic force of the elastic member, so that the cutter 20 is switched from the retracted state to the locked state.

In addition, it should be noted that the cartridge assembly further includes a limiting mechanism, and the limiting mechanism is used for cooperating with the cutter 20 during the retraction of the cutter 20, so as to prevent the cutter 20 from advancing again during the retraction due to misoperation, and further prevent the stapled tissue from being cut again. The limiting mechanism is prior art and is not described herein.

Further, referring to fig. 4 and 7, the one-way stopper 21 includes a stopping surface 21-1 and a first abutting surface 21-2, the stopping surface 21-1 is located on a side of a distal end of the one-way stopper 21, and the first abutting surface 21-2 is located on a side of a proximal end of the one-way stopper 21. The sliding component 100 has a second abutting surface 114 for cooperating with the first abutting surface 21-2, and the first abutting surface 21-2 inclines to a side far away from the magazine base 11 along the direction from the distal end to the proximal end of the magazine body 10. When the cutter 20 is switched from the retracted state to the locked state, the first abutting surface 21-2 is used for being matched with the second abutting surface 114.

In this embodiment, the stop surface 21-1 may be a vertical surface, and the first pushing surface 21-2 may be a plane or a smoothly-transitional convex surface. When the cutting knife 20 is in the locking state, the sliding assembly 100 is in the first position and the stop surface 21-1 is at one side of the distal end of the one-way stop 21, and at this time, the sliding assembly 100 can interfere with the stop surface 21-1 of the one-way stop 21, so that the cutting knife 20 is locked. When the cutting knife 20 is switched from the retracted state to the locked state, at this time, the cutting knife 20 moves towards the proximal end, the second abutting surface 114 of the sliding assembly 100 is matched with the first abutting surface 21-2 of the one-way stopper 21, and along the direction from the distal end to the proximal end, the first abutting surface 21-2 inclines towards the side far away from the magazine base 11, that is, the one-way stopper 21 vertically pushes the sliding assembly 100 downwards, so that the sliding assembly 100 is switched from the first position to the second position.

The utility model also discloses a cutting anastomat, cutting anastomat include the nail storehouse subassembly of handle and air defense nail storehouse percussion, and the handle is connected with one side of the near-end of nail storehouse body 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A staple cartridge assembly for anti-empty staple cartridge firing, comprising:

a cartridge body (10);

the cutting knife (20) is connected with the nail bin body (10) in a sliding mode along a first direction, a one-way stop piece (21) is arranged on the cutting knife (20), and the cutting knife (20) has a locking state and a firing state;

the sliding assembly (100) is connected with the nail bin body (10) in a sliding mode along the second direction and is located at the proximal end of the nail bin body (10); the sliding assembly (100) has a first position and a second position along a second direction; -bringing said cutting knife (20) in said locked condition when said one-way stop (21) cooperates with said sliding assembly (100) in the first position; and

the nail pushing piece (30) is connected with the nail bin body (10) in a sliding mode along the first direction and located on one side of the far end of the cutting knife (20), when the nail pushing piece (30) moves towards the near end, the sliding assembly (100) can be pushed to slide from the first position to the second position, and therefore the cutting knife (20) is switched from the locking state to the firing state.

2. The anti-empty staple cartridge fired staple cartridge assembly of claim 1, said sled assembly (100) comprising:

the sliding block (110) is connected with the nail bin seat (11) of the nail bin body (10) in a sliding mode along the second direction, the sliding block (110) is arranged on at least one side of the cutter (20) along the third direction, and when the cutter is in the locking state, the sliding block is located at the far end of the one-way stop piece; when the nail pushing piece (30) moves towards the near end, the sliding block (110) can be pushed to slide from a first position to a second position, and the third direction is perpendicular to the first direction and the second direction at the same time; and

an elastic member (120) disposed between the slider (110) and the cartridge seat (11) in the second direction for sliding the slider (110) from the second position to the first position.

3. The anti-empty cartridge fired cartridge assembly of claim 2, wherein the sled assembly (100) further comprises a moving seat (130), the moving seat (130) is disposed on the cartridge seat (11), the sled (110) is disposed on the moving seat (130), and the resilient member (120) is disposed between the sled (110) and the moving seat (130) in a second direction.

4. The anti-empty cartridge fired cartridge assembly of claim 3 wherein said moving seat (130) has an abutting structure (131) pushing said slider (110) to move, said slider (110) having an abutting structure (111) cooperating with said abutting structure (131); when the nail-pushing piece (30) moves towards the near end to push the moving seat (130), the abutting structure (131) can be matched with the abutting structure (111) to enable the sliding block (110) to be switched from the first position to the second position.

5. The anti-empty staple cartridge fired staple cartridge assembly of claim 4, wherein said abutting structure (131) is a first inclined surface and said abutting structure (111) is a second inclined surface, said first inclined surface and said second inclined surface having the same inclination angle.

6. The anti-empty staple cartridge fired staple cartridge assembly of claim 5, wherein said second ramp slopes to a side away from said cartridge seat (11) in a distal to proximal direction.

7. The anti-empty staple cartridge fired staple cartridge assembly of claim 2, wherein one of said staple cartridge seat (11) and said sled (110) is provided with a protrusion (113) and the other is provided with a recess (11-1) cooperating with the protrusion (113), the extension direction of said recess (11-1) being along said second direction.

8. The anti-empty cartridge fired cartridge assembly of claim 2 wherein said knife (20) further has a retracted state capable of squeezing said slide assembly (100) from a first position to a second position when said one-way stop (21) moves from a side located at the distal end of said slide assembly (100) to a side located at the proximal end of said slide assembly (100);

when the one-way stop (21) moves to one side of the proximal end of the sliding assembly (100), the sliding assembly (100) can be switched from the second position to the first position under the action of the self elasticity of the elastic piece, so that the cutting knife (20) is switched from the retraction state to the locking state.

9. The anti-empty cartridge fired cartridge assembly of claim 8 wherein said one-way stop (21) has a stop surface (21-1) and a first abutment surface (21-2), said stop surface (21-1) being located on one side of the distal end of said one-way stop (21) and said first abutment surface (21-2) being located on one side of the proximal end of said one-way stop (21);

the sliding component (100) is provided with a second abutting surface (114) matched with the first abutting surface (21-2), and the first abutting surface (21-2) inclines to one side far away from the nail bin seat (11) along the direction from the far end to the near end of the nail bin body (10);

when the cutter (20) is switched from the retraction state to the locking state, the first abutting surface (21-2) is used for being matched with the second abutting surface (114).

10. A cutting stapler, characterized in that it comprises a handle and a cartridge assembly of the antiaircraft cartridge firing according to any of the claims 1-9, said handle being connected to one side of the proximal end of the cartridge body (10).

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