A stapler cartridge and a stapler

Abstract

The present invention discloses a stapler cartridge, which includes an anvil, a staple cartridge assembly, a cartridge base and a fixing block component. The fixing block component includes two parallel support portions, and a knife groove for a cutting knife is provided between the two support portions. The proximal end of the anvil is movably hinged to the proximal end of the cartridge base through the fixing block component. The staple cartridge assembly is located between the anvil and the cartridge base. An identification mechanism is provided at the distal end of the fixing block component for identifying whether the staple cartridge assembly is installed in the cartridge. The stapler cartridge with an identification mechanism adopted in the present invention ensures that it can identify whether the staple cartridge assembly of the endoscopic cutting stapler is installed on the endoscopic cutting stapler cartridge body, effectively avoiding medical accidents caused by misoperation, re-firing or forgetting to replace the component and then re-firing, and greatly reducing the medical risk.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a stapler cartridge and a stapler applied in laparoscopic surgery. Background Art

[0002] In surgical operations, medical laparoscopic cutting staplers have become essential auxiliary medical devices in the process of suturing human tissues. With the development of medicine and product research and development, more and more multifunctional stapling products are applied clinically, and the scope of application has covered various fields such as gastrointestinal surgery, hepatobiliary surgery, thoracic surgery, urology, and gynecology, becoming one of the essential tools for doctors. The application of laparoscopic cutting staplers has many advantages such as less bleeding during surgery, shorter operation time, reduced manual operation errors, avoidance of infection, and rapid postoperative functional recovery.

[0003] Laparoscopic cutting staplers and disposable stapler cartridges are applicable to the resection, transection, and anastomosis of tissues in abdominal, obstetric and gynecological, pediatric, and thoracic surgeries. They can also be used for the resection and transection of liver parenchyma, liver blood vessels, and biliary ducts.

[0004] In the existing laparoscopic stapler cartridge, the cartridge assembly of the stapler cartridge is used integrally and disposable, and is detachably installed in the stapler cartridge. However, in practice, it often occurs that the operator cannot identify whether the cartridge assembly is installed in the stapler cartridge. Due to some operators being unfamiliar with the stapler, they do not know whether there is a cartridge assembly in the stapler cartridge, and they will reuse the stapler that has fired the cartridge assembly, resulting in only cutting but not suturing during the operation. Such actions will undoubtedly cause medical accidents during the operation and increase the medical risks of patients. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to solve the technical problem in the prior art that it is impossible to identify whether the cartridge assembly is installed in the stapler cartridge, and effectively avoid the stapler cartridge and stapler that are accidentally misfired by doctors during the operation.

[0006] To solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A stapler cartridge includes an anvil, a cartridge assembly, a stapler cartridge base, and a fixing block component. The fixing block component includes two parallel support parts. A knife groove for a cutting knife is provided between the two support parts. The proximal end of the anvil is movably hinged to the proximal end of the stapler cartridge base through the fixing block component. The cartridge assembly is located between the anvil and the stapler cartridge base. Its characteristics are that,

[0008] An identification mechanism is provided at the distal end of the fixing block component for identifying whether the cartridge assembly is installed in the stapler cartridge.

[0009] In a further technical solution, the recognition mechanism is slidably disposed at the distal end of the fixed block component;

[0010] When the staple cartridge is installed with the staple magazine assembly, the recognition mechanism moves away from its initial position and slides in the direction of the proximal end of the fixed block component, and the distal end of the recognition mechanism abuts against the proximal end of the staple magazine assembly;

[0011] When the staple cartridge is not installed with the staple magazine assembly, the recognition mechanism remains at its initial position.

[0012] In a further technical solution, the recognition mechanism includes an elastic component, a sliding component, and a locking component;

[0013] The distal end of the elastic component is connected to the proximal end of the sliding component, and the sliding component gives a driving force to act on the elastic component under the drive of the staple magazine assembly;

[0014] The protrusion on the inner side wall of the sliding component cooperates with the limiting portion on the outer side wall of the locking component, so that the locking component realizes the locking and opening / closing actions.

[0015] In a further technical solution, the recognition mechanism further includes a fixing component, and the fixing component can fix the locking component, so that the locking component can rotate axially with the fixing component as the axis to realize the locking and opening / closing actions.

[0016] In a further technical solution, a groove is provided at the end face of the distal ends of the two supporting portions of the fixed block component, respectively accommodating one of the elastic components, and the depth of the groove is greater than the length of the elastic component;

[0017] One end of the elastic component is located at the bottom of the groove, and the other end of the elastic component is connected to the sliding component;

[0018] One opening is provided in each of the two grooves, respectively accommodating one of the locking components, and the depth of the opening is greater than the length of the locking component;

[0019] When the staple cartridge is not installed with the staple magazine assembly, the sliding component is in the initial position, and the locking component is in the locked state, preventing the cutting knife from sliding in the knife groove;

[0020] When the staple cartridge is installed with the staple magazine assembly, the sliding component slides in the direction of the elastic component, and the locking component is in the open / closed state under the action of the sliding component, allowing the cutting knife to slide in the knife groove.

[0021] In a further technical solution, the elastic component is a compression spring or an elastic sheet.

[0022] In a further technical solution, the sliding member is a sliding rod, the sliding rod is provided with a sliding rod protrusion, the locking member is a locking hook, one end of the locking hook is provided with a hook, and the hooks of the locking hooks on both sides of the knife groove cooperate with the sliding rod protrusion to achieve closing and opening actions.

[0023] In a further technical solution, the fixing member is a pin, the proximal end of the pulling hook is provided with a through hole, and the pin is inserted into the through hole to fix the pulling hook and rotate around the pin.

[0024] In a further technical solution, the locking hook is provided with a first limiting portion and a second limiting portion. When the locking hook rotates circumferentially around the pin, the section formed by the first limiting portion and the second limiting portion of the locking hook slides around the sliding rod protrusion.

[0025] Another technical problem to be solved by the present invention is to provide a stapler, which solves the technical problem that the stapler in the prior art cannot recognize whether the staple cartridge assembly is installed in the staple magazine, effectively avoiding the stapler and the staple magazine of the stapler from being accidentally fired by the doctor during the operation.

[0026] To solve this technical problem, the present invention also provides a stapler, including the staple magazine of the above stapler.

[0027] After adopting such a design, the present invention has at least the following advantages:

[0028] (1) The present invention adopts a staple magazine with an identification mechanism, which ensures that it can recognize whether the staple cartridge assembly of the endoscopic cutting stapler is installed on the main body of the endoscopic cutting stapler staple magazine, effectively avoiding medical accidents caused by re-firing or forgetting to replace the component and re-firing, and greatly reducing the medical risk.

[0029] (2) The present invention adopts a method in which the sliding member and the locking member cooperate with each other to limit the sliding of the cutting knife in the knife groove, effectively avoiding the occurrence of misoperation events by the operator.

[0030] (3) The present invention has a simple structure, good effects, low cost, and is easy to be realized by technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, the following further describes the present invention in detail with reference to the drawings and specific embodiments.

[0032] Figure 1 is a schematic structural view of the staple magazine of the present invention;

[0033] Figure 2 is a schematic structural view of the fixing block member of the present invention;

[0034] Figure 3 It is a schematic cross-sectional structure diagram of the fixing block component of the present invention;

[0035] Figure 4 It is a schematic installation diagram of the fixing block component and the identification mechanism in an embodiment of the present invention;

[0036] Figure 5 It is a schematic structure diagram of the identification mechanism in an embodiment of the present invention;

[0037] Figure 6 It is a schematic position diagram of the identification mechanism when installing the staple cartridge in an embodiment of the present invention;

[0038] Figure 7 It is a schematic position diagram of the identification mechanism when disassembling the staple cartridge in an embodiment of the present invention;

[0039] Figure 8 It is a schematic exploded view of the identification mechanism in an embodiment of the present invention;

[0040] Figure 9 It is a schematic diagram of the identification mechanism in an embodiment of the present invention;

[0041] Figure 10 It is a schematic structure diagram of the sliding rod in an embodiment of the present invention;

[0042] Figure 11 It is a schematic structure diagram of the locking hook in an embodiment of the present invention;

[0043] Among them,

[0044] 1 is the anvil, 2 is the staple cartridge assembly, 3 is the staple magazine base, 4 is the fixing block component, 41 is the support part, 42 is the groove, 43 is the opening, 44 is the first hole, 45 is the second hole, 5 is the identification mechanism, 51 is the spring, 52 is the sliding rod, 521 is the sliding rod protrusion, 53 is the locking hook, 531 is the first limiting part, 532 is the second limiting part, 533 is the hook, 54 is the locking hook hole, 55 is the pin, 6 is the cutting knife, and 61 is the knife groove. Detailed implementation manners

[0045] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not used to limit the present invention.

[0046] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0047] In various embodiments of the present invention, "distal end" refers to the end of the stapler that is away from the user when the stapler is being operated, and "proximal end" refers to the end of the stapler that is close to the user when the stapler is being operated.

[0048] As Figures 1 to 11 shown, in an embodiment of the present invention, a stapler cartridge is provided, which includes an anvil 1, a staple cartridge assembly 2, a cartridge base 3, and a fixing block component 4. The fixing block component 4 includes two parallel support parts 41. A knife groove 61 for a cutting knife 6 is provided between the two support parts 41. The proximal end of the anvil 1 and the proximal end of the cartridge base 3 are movably hinged through the fixing block component 4. The staple cartridge assembly 2 is located between the anvil 1 and the cartridge base 3. An identification mechanism 5 is provided at the distal end of the fixing block component 4 for identifying whether the staple cartridge assembly 2 is installed in the cartridge.

[0049] Here, the staple cartridge assembly 2 is detachably connected to the fixing block component 4.

[0050] The identification mechanism 5 is slidably arranged at the distal end of the fixing block component 4.

[0051] The initial position of the identification mechanism 5 in this embodiment is defined as the position of the identification mechanism 5 when the cartridge assembly is not installed.

[0052] When the staple cartridge assembly 2 is installed in the cartridge, the staple cartridge assembly 2 occupies the initial position of the identification mechanism 5, causing the identification mechanism 5 to move away from its initial position and slide towards the fixing block component 4. The distal end of the identification mechanism 5 abuts against the proximal end of the staple cartridge assembly 2, thereby identifying the staple cartridge assembly 2;

[0053] When the staple cartridge assembly 2 is not installed in the cartridge, the distal end of the identification mechanism 5 cannot abut against the staple cartridge assembly 2, and the identification mechanism 5 remains in its initial position.

[0054] In an embodiment of the present invention, the identification mechanism 5 includes an elastic component, a sliding component, and a locking component.

[0055] The distal end of the elastic component is connected to the proximal end of the sliding component. The sliding component gives a driving force to act on the elastic component under the drive of the staple cartridge assembly 2; at the same time, the sliding component cooperates with the locking component to enable the locking components on both sides of the knife groove 61 to perform locking and opening / closing actions.

[0056] Specifically, when the staple cartridge assembly 2 is installed in the staple magazine, due to the presence of the staple cartridge assembly 2, the initial position of the sliding member is occupied, causing the sliding member to give way to the staple cartridge assembly 2. The sliding member slides towards the elastic member, applying a driving force to the elastic member and enabling the elastic member to store energy. A protrusion that mates with the locking member is provided on the side wall of the sliding member near the knife slot 61. There is a sliding member and a locking member on each side of the knife slot 61. Due to the sliding of the sliding members on both sides of the knife slot 61, the locking members on both sides of the knife slot 61 are driven away from the knife slot, putting the locking members in an open / closed state and allowing the cutting knife 6 to slide in the knife slot 61.

[0057] When the staple cartridge assembly 2 is removed from the staple magazine, due to the removal of the staple cartridge assembly 2, the initial position of the sliding member becomes available. The elastic member releases energy, causing the sliding member to slide back to its initial position. Due to the mating relationship between the sliding member and the locking member, the sliding of the sliding member drives the locking members on both sides of the knife slot 61 to rotate in opposite directions, putting the locking members in a closed state and preventing the cutting knife 6 from sliding in the knife slot 61.

[0058] In an embodiment of the present invention, the identification mechanism 5 further includes a fixing member that can fix the locking member, enabling the locking member to perform locking and opening / closing actions by axially rotating around the fixing member as an axis.

[0059] Here, at least one groove 42 is provided on the distal end faces of both support portions 41 of the fixing block member 4 to respectively accommodate an elastic member, and the depth of the groove is greater than the length of the elastic member.

[0060] In an embodiment of the present invention, one groove 42 is provided on the distal end faces of both support portions 41 of the fixing block member 4. The grooves 42 in the two support portions 41 need to exist in pairs. The number of grooves 42 is not limited and can be set to multiple in the two support portions 41 according to needs, which will not be elaborated here.

[0061] Here, the position of the groove 42 is closer to the side of the cutting knife slot 61.

[0062] In an embodiment of the present invention, the diameter of the groove 42 needs to be greater than the diameter of the elastic member, that is, the elastic member is disposed inside the groove 42.

[0063] One end of the elastic member is located at the bottom of the groove 42, and the other end of the elastic member is connected to the sliding member. The diameter of the groove 42 needs to be greater than the diameter of the sliding member, that is, the groove 42 needs to be able to accommodate at least a part of the sliding member.

[0064] In an embodiment of the present invention, a part of the length of the sliding member is located inside the groove 42. According to needs, the entire sliding member can be located inside the groove, which will not be elaborated here.

[0065] In the present invention, there are no gaps on the side walls of the groove 42, and the diameter of the groove needs to be larger than the outer diameter of the elastic component.

[0066] Preferably, in the present invention, the groove 42 of the support portion 41 is an open groove. That is, an opening 43 is provided in the groove 42 of each of the two support portions 41 to respectively accommodate a locking component. The depth of the opening 43 is greater than the length of the locking component, and the depth of the opening 43 is less than the depth of the groove 42. The height of the opening 43 is greater than the height of the locking component, and the end face of the opening 43 can support the locking component.

[0067] Here, the position of the opening 43 is on the side of the cutter groove of the cutting knife, which is convenient for accommodating the locking component.

[0068] In the embodiment of the present invention, there is no limitation on the thickness of the opening 43, as long as it can ensure that the locking component can be supported.

[0069] Here, when the cartridge assembly 2 is not installed in the nail magazine, the locking component is in a closed state, preventing the cutting knife 6 from sliding in the knife groove 61; when the cartridge assembly 2 is installed in the nail magazine, the locking component is in an open state, allowing the cutting knife 6 to slide in the knife groove 61.

[0070] Specifically, in the embodiment of the present invention, the elastic component is a spring 51, the sliding component is a sliding rod 52, the locking component is a locking hook 53, and the fixing component is a pin 55. Two support portions of the fixed block component are respectively provided with a spring 51, a sliding rod 52, a locking hook 53, and a pin hole 55.

[0071] A sliding rod protrusion 521 is provided on the side of the sliding rod 52 facing the knife groove. The protrusion 521 is a smooth arc-shaped protrusion, so that the sliding rod 52 forms an E-shaped structure.

[0072] One end of the locking hook 53 is provided with a hook 533, and the hooks 533 of the locking hooks 53 on both sides of the knife groove cooperate to achieve the closing and opening actions.

[0073] Specifically, when the opening and closing actions are achieved, the hooks 533 on both sides of the knife groove 61 are separated from each other, and the distance between the two hooks 533 is greater than the width of the knife groove 61, enabling the cutting knife 6 to slide in the knife groove 61. When the closing action is achieved, the hooks 533 on both sides of the knife groove 6 are close to each other, making the distance between the two hooks 533 less than the width of the knife groove 61, and the cutting knife 6 cannot slide in the knife groove 61.

[0074] The other end of the locking hook 53 is a circular arc-shaped end face. A locking hook hole 54 is provided on the side of the circular arc-shaped end face of the locking hook 53. First holes 44 are also respectively provided on the end faces of the two support portions 41 of the fixed block component 4, and a second hole 45 is also provided on the end face of the opening 43. The first hole 44, the locking hook hole 54, and the second hole 45 are coaxial holes. After the pin 55 passes through the first hole 44 and the locking hook hole 54 respectively, it is fixed at the second hole 45.

[0075] Here, the diameter of the pin 55 is smaller than the diameter of the hook hole 54, so that the hook 53 can rotate circumferentially about the pin 55.

[0076] On the side of the hook 53 close to the cutter groove of the cutting knife, a first limiting portion 531 and a second limiting portion 532 are provided. The concave surface between the first limiting portion 531 and the second limiting portion 532 forms a force transmission surface, which cooperates with the protrusion 521 of the sliding rod 52 to complete the force transmission function, so that the hook 53 realizes the closing and opening actions.

[0077] Here, the height of the sliding protrusion 521 of the sliding rod 52 is higher than the height of the first limiting portion 531 and the second limiting portion 532 of the hook 53.

[0078] As needed, the heights of the first limiting portion 531 and the second limiting portion 532 of the hook 53 can be different or the same, which is not limited here.

[0079] Specifically, in the initial state, the staple cartridge assembly 2 is not installed in the staple magazine, the spring 51 is in the initial state and is not compressed. One end of the spring 51 at both ends of the cutter groove 61 abuts against the bottom of the groove 42 of the support portion 41 respectively, and the other end of the spring 51 is connected to the sliding rod 52. The proximal protrusion of the sliding rod 52 is used to limit the first limiting portion 531 of the hook 53, and the first limiting portion 531 slides between the proximal protrusion of the sliding rod 52 and the sliding rod protrusion 521. The hook 53 rotates circumferentially about the pin 55 in the hook hole 54, so that the second limiting portion 532 of the hook 53 is located above the sliding rod protrusion 521. Here, the end surface of the sliding rod protrusion 521 can be a plane or a concave-convex surface, as long as it can support the second limiting portion 532 of the hook 53. Since the second limiting portion 532 of the hook 53 is located above the protrusion 521 of the sliding rod 52, the hooks 533 of the hooks 53 at both ends of the cutter groove 61 are close to each other, and the distance between the two hook hooks 533 is smaller than the groove width of the cutter groove 61, so that the cutting knife 6 is locked by the hook 53. When the cutting knife 6 slides along the cutter groove 61, the cutting knife 6 pushes the hook hook 533, and the hook 53 slides towards the distal end under the push of the cutting knife. The first limiting portion 531 of the hook 53 moves to the proximal end of the sliding rod protrusion 521. Due to the blocking effect of the sliding rod protrusion 521, the hook 53 cannot continue to move, and the second limiting portion 531 of the hook still lies on the end surface of the sliding rod protrusion 521, so that the cutting knife 6 cannot slide towards the distal end in the cutter groove 61, thereby achieving that the staple magazine of the endoscopic stapler cannot be fired when the staple cartridge assembly 2 is not installed, effectively increasing the safety during the use of the staple magazine of the endoscopic stapler.

[0080] Here, the sliding protrusion 521 of the sliding rod 52 can be accommodated between the first limiting portion 531 and the second limiting portion 532 of the hook 53.

[0081] The distance between the proximal protrusion of the sliding rod 52 and the sliding rod protrusion 521 is less than the width of the end face of the sliding rod protrusion 521, so as to ensure that when the cutting knife 6 pushes the locking hook 53 to slide, the locking hook 53 can be closed to prevent the cutting knife 6 from sliding.

[0082] When a staple cartridge assembly 2 is installed in the staple magazine, the staple cartridge assembly 2 occupies the position of the sliding rod 52, causing the sliding rod 52 to move away from its initial position and slide towards the spring 51, compressing the spring 51 to store energy. One end of the spring 51 at both ends of the knife groove 61 abuts against the bottom of the groove 42 of the support portion 41 respectively, and the other end of the spring 51 is connected to the sliding rod 52. Due to the sliding of the sliding rod 52, the locking hook 53 rotates circumferentially around the pin 55 in the locking hook hole 54. The second limiting portion 532 of the locking hook 53 falls out of the sliding rod protrusion 521, and the first limiting portion 531 of the locking hook 53 approaches the position near the sliding rod protrusion 521. The hooks 533 of the locking hooks at both ends of the knife groove 61 are separated from each other, and the distance between the two locking hooks 53 is greater than the groove width of the knife groove 61, so that the cutting knife 6 is unlocked by the locking hook 53 and can slide distally in the knife groove 61, thus achieving the normal firing of the staple magazine of the endoscopic stapler.

[0083] The force transmission surface between the first limiting portion 531 and the second limiting portion 532 can be a conical surface, or other shapes such as a trapezoidal surface, as long as the shape can achieve smooth force transmission. "

[0084] When the staple cartridge assembly 2 is removed from the staple magazine, the staple cartridge assembly 2 leaves the position of the sliding rod 52, causing the sliding rod 52 to slide towards its initial position, stretching the spring 51 to release the stored energy. One end of the spring 51 at both ends of the knife groove 61 abuts against the bottom of the groove 42 of the support portion 41 respectively, and the other end of the spring 51 is connected to the sliding rod 52. Due to the sliding of the sliding rod 52, the second limiting portion 532 of the locking hook 53 returns to the end face of the sliding rod protrusion 521, and the first limiting portion 531 of the locking hook 53 leaves the position near the sliding rod protrusion 521. The locking hooks 53 of the sliding rods at both ends of the knife groove 61 approach each other, and the distance between the two locking hooks 53 is less than the groove width of the knife groove 61, so that the cutting knife 6 is locked by the locking hook 53 and the cutting knife 6 cannot slide distally in the knife groove 61."

[0085] In the present invention, the length of the hook 533 of the locking hook 53 needs to be greater than half of the width of the cutting knife 6. When the hooks 533 of the locking hooks 53 on both sides of the knife groove 61 approach each other, it can ensure that the area formed by the two hooks 533 can accommodate the cutting knife.

[0086] Here, when the locking hook 53 rotates circumferentially around the pin 55, the section plane formed by the first limiting portion 531 and the second limiting portion 532 of the locking hook 53 slides around the sliding rod protrusion 521.

[0087] In the embodiment of the present invention, when the first limiting portion 531 and the second limiting portion 532 of the locking hook 53 rotate with the sliding rod protrusion 521, it is ensured that the sliding rod protrusion 521 rotates within the limiting portions of the first limiting portion 531 and the second limiting portion 532 of the locking hook 53. The lengths of the first limiting portion 531 and the second limiting portion 532 of the locking hook may be the same or different, and are not limited herein.

[0088] Certainly, in the embodiment of the present invention, the elastic component may also be other mechanism components such as an elastic member that can provide energy storage, which will not be elaborated herein.

[0089] Specifically, in the embodiment of the present invention, the sliding component is a sliding rod.

[0090] The present invention also discloses a stapler including the staple cartridge.

[0091] After adopting such a design, the present invention has at least the following advantages:

[0092] (1) The present invention adopts a staple cartridge with an identification mechanism, which ensures that it can identify whether the staple cartridge assembly of the endoscopic cutting stapler is installed on the endoscopic cutting stapler staple cartridge body, effectively avoiding misoperations and medical accidents caused by re-firing or forgetting to replace the component and re-firing, and greatly reducing the medical risk.

[0093] (2) The present invention adopts a method in which the sliding component cooperates with the locking component to limit the sliding of the cutting knife in the knife groove, effectively avoiding the occurrence of misoperation events by the operator.

[0094] (3) The present invention has a simple structure, good effects, low cost, and is easy to be realized by technology.

[0095] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modifications, equivalent changes or decorations made by those skilled in the art using the disclosed technical content all fall within the protection scope of the present invention.

Claims

1. A stapler magazine, comprising an anvil, a staple cartridge assembly, a staple cartridge base, and a fixed block component, wherein the fixed block component comprises two mutually parallel support portions, a knife groove for a cutting knife is provided between the two support portions, a proximal end of the anvil and a proximal end of the staple cartridge base are movably hinged via the fixed block component, and the staple cartridge assembly is located between the anvil and the staple cartridge base, characterized in that: An identification mechanism is provided at the distal end of the fixing block component for identifying whether the staple cartridge assembly is installed in the stapler cartridge; The identification mechanism is slidably disposed at the distal end of the fixed block component; When the stapler cartridge assembly is installed in the stapler cartridge, the identification mechanism leaves its initial position and slides toward the proximal end of the fixing block component, and the distal end of the identification mechanism abuts against the proximal end of the stapler cartridge assembly; When the stapler cartridge assembly is not installed in the stapler cartridge, the identification mechanism remains in its initial position; The identification mechanism includes an elastic component, a sliding component, and a locking component; The distal end of the elastic component is connected to the proximal end of the sliding component, and the sliding component exerts a driving force on the elastic component when driven by the staple cartridge assembly; The protrusion on the inner side wall of the sliding member cooperates with the limiting portion on the outer side wall of the locking member, so that the locking member can achieve locking and opening and closing actions; When the stapler cartridge assembly is not installed in the stapler cartridge, the sliding component is in an initial position, and the locking component is in a locked state, preventing the cutting knife from sliding in the knife groove; When the stapler cartridge assembly is installed in the stapler cartridge, the sliding component slides toward the elastic component, and the locking component is in an open and closed state under the action of the sliding component, allowing the cutting knife to slide in the knife groove.

2. The stapler cartridge according to claim 1, wherein: The identification mechanism further includes a fixing component, which can fix the locking component so that the locking component can be axially rotated with the fixing component as an axis to achieve locking and opening and closing actions.

3. The stapler cartridge according to claim 2, wherein: The distal end surfaces of the two supporting parts of the fixing block component are each provided with a groove for accommodating one of the elastic components respectively, and the depth of the groove is greater than the length of the elastic component; One end of the elastic component is located at the bottom of the groove, and the other end of the elastic component is connected to the sliding component; The two grooves are each provided with an opening for accommodating a locking component respectively, and the depth of the opening is greater than the length of the locking component.

4. The stapler cartridge according to claim 1, wherein: The elastic component is a compression spring or an elastic sheet.

5. The stapler cartridge of claim 3, wherein: The sliding component is a sliding rod, and the sliding rod is provided with a sliding rod protrusion. The locking component is a lock hook, and a hook is provided at one end of the lock hook. The hooks of the lock hook on both sides of the knife groove cooperate with the sliding rod protrusion to realize closing and opening and closing actions.

6. The stapler magazine according to claim 5, wherein: The fixing component is a pin, and a through hole is provided at the proximal end of the lock hook. The pin is installed in the through hole to fix the lock hook and rotate with the pin as the axis.

7. The stapler magazine according to claim 6, wherein: The lock hook is provided with a first limiting portion and a second limiting portion. When the lock hook rotates circumferentially with the pin as the axis, the cross section formed by the first limiting portion and the second limiting portion of the lock hook slides with the sliding rod protrusion as the axis.

8. A stapler, characterized in that: Comprising the stapler magazine according to any one of claims 1-7.

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