Nail bin seat, nail bin assembly, end executing mechanism and anastomat

Abstract

The utility model relates to the technical field of medical instruments, and discloses a staple cartridge base, a staple cartridge assembly, an end executing mechanism and an anastomat, the staple cartridge base comprises a main body part, the main body part is provided with a containing groove and a sliding groove, and the sliding groove penetrates through the bottom wall of the containing groove; the sliding groove is used for containing a part of a cutting knife, and the cutting knife can move in the extending direction of the sliding groove. The first reinforcing parts extend from the groove bottom of the containing groove, are located on the two sides of the sliding groove and extend in the extending direction of the sliding groove so as to be used for reinforcing the structural strength of the main body part. According to the nail bin seat, the nail bin assembly, the end executing mechanism and the anastomat, the problem that in the related technology, in the percussion process of a cutting knife, the knife bar of the cutting knife is prone to bending deformation can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a staple cartridge seat, a staple cartridge assembly, an end actuator, and a stapler. Background Art

[0002] Staplers are medical devices used to replace manual tissue suturing. With the rapid development of technology, staplers have gradually shifted from manual to electric staplers. Electric staplers are more intelligent than manual staplers, making it easier for doctors to perform tissue anastomosis surgeries on patients.

[0003] In a surgery using a stapler for tissue anastomosis, the tissue to be anastomosed is generally clamped and bitten between the stapler magazine and the anvil, and then the handle of the stapler is pressed to fire the cutting knife to separate the tissue. At the same time, the staples set in the stapler magazine are pushed out by the wedge block to anastomose the tissue.

[0004] In the related art, when the stapler is anastomosing thicker tissues or performing deflected anastomosis, such as anastomosing bronchial tissues, gastric tissues and other tissues, the resistance to firing the cutting knife is very large, which makes it easy for the cutting knife rod to bend and deform during the firing process. Utility Model Content

[0005] The present application provides a staple cartridge seat, a staple cartridge assembly, an end actuator and an anastomosis device, which can improve the problem of bending and deformation of the cutting knife's blade during the firing process of the cutting knife in the related art.

[0006] In a first aspect, an embodiment of the present application provides a staple cartridge holder, comprising:

[0007] A main body portion, wherein the main body portion is provided with a receiving groove and a sliding groove, wherein the sliding groove passes through the bottom wall of the receiving groove, the sliding groove is used to accommodate a portion of the cutting knife and the cutting knife can move along the extension direction of the sliding groove;

[0008] The first reinforcement portion extends from the bottom of the accommodating groove and is located on both sides of the sliding groove and extends along the extending direction of the sliding groove, so as to strengthen the structural strength of the main body.

[0009] In some embodiments, the thickness of the first reinforcement portion is 0.2 mm-0.9 mm.

[0010] In some embodiments, the nail magazine seat also includes a second reinforcement portion, which is arranged on the outside of the main body, and the second reinforcement portion connects the main body on both sides of the slide groove and defines a first accommodating cavity, the first accommodating cavity is connected to the slide groove, and a portion of the cutting knife is accommodated in the first accommodating cavity.

[0011] In some embodiments, a combination of a cross section of the slide groove along a direction perpendicular to the extension direction of the slide groove and a cross section of the first accommodating cavity along a direction perpendicular to the extension direction of the slide groove is distributed in a "T" shape.

[0012] In a second aspect, an embodiment of the present application provides a staple cartridge assembly, comprising:

[0013] The nail cartridge seat as described in the first aspect;

[0014] a nail magazine, the nail magazine being disposed in the accommodating groove and connected to the main body;

[0015] A wedge-shaped block is located between the bottom wall of the accommodating groove and the nail magazine, and the wedge-shaped block can move along the extension direction of the sliding groove.

[0016] In some embodiments, the wedge block is provided with a recessed portion, the recessed portion is used to accommodate the first reinforcing portion, and an inner wall of the recessed portion is in slidable contact with the first reinforcing portion.

[0017] In some embodiments, the wedge block is provided with a protrusion, the protrusion is located between the first reinforcement parts on both sides of the slide groove, and the protrusion is in slidable contact with the first reinforcement part.

[0018] In some embodiments, two opposite side walls of the nail magazine seat are provided with a clamping portion, and the nail magazine is provided with a clamping portion corresponding to the clamping portion, and the clamping portion is detachably engaged with the clamping portion.

[0019] In a third aspect, an embodiment of the present application provides an end actuator, comprising:

[0020] The staple cartridge assembly according to the second aspect;

[0021] a cutting knife, the cutting knife being slidable in the chute;

[0022] The nail anvil is arranged opposite to the nail magazine assembly and is rotatably connected to the nail magazine seat to achieve opening or closing.

[0023] In a fourth aspect, an embodiment of the present application provides a stapler, comprising a handle, a shaft assembly, and an end actuator of the stapler as described in the third aspect, wherein the shaft assembly is connected between the handle and the end actuator.

[0024] The nail magazine seat provided in the embodiment of the present application has the following beneficial effects: since the main body is provided with a receiving groove and a sliding groove, the sliding groove passes through the bottom wall of the receiving groove, the sliding groove is used to accommodate a part of the cutting knife and the cutting knife can move along the extension direction of the sliding groove, and the first reinforcement part extends from the bottom of the receiving groove, and is located on both sides of the sliding groove and extends along the extension direction of the sliding groove, so the structural strength of the main body can be strengthened by the first reinforcement part, so that the main body and the first reinforcement part can have a better restraining effect on the knife rod of the cutting knife, thereby improving the problem that the knife rod of the cutting knife is easily bent and deformed due to excessive firing force during the matching firing process; thereby avoiding the problem that the nail magazines on both sides are squeezed due to complete deformation of the guide rod, which will also cause the nail magazines to be squeezed and deformed, causing the nail holes of the nail magazines and the nail grooves of the nail anvil to be skewed, resulting in abnormal nailing.

[0025] The beneficial effects of the staple cartridge assembly provided in the present application compared to the prior art, the beneficial effects of the end actuator provided in the present application and the beneficial effects of the stapler provided in the present application compared to the prior art can all be referred to the description of the beneficial effects provided in the present application compared to the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic structural diagram of a stapler in one embodiment of the present application;

[0028] Figure 2 yes Figure 1 A schematic structural diagram of a stapler assembly shown;

[0029] Figure 3 yes Figure 2 The cross-sectional view along the MM direction is shown;

[0030] Figure 4 It is a cutting knife and Figure 2 A schematic structural diagram of a nail magazine seat and a wedge-shaped block in the nail magazine assembly shown;

[0031] Figure 5 yes Figure 4 The schematic diagram of the structure of the cutting knife, nail magazine seat and wedge block shown;

[0032] Figure 6 yes Figure 2 A schematic structural diagram of a nail magazine seat in the nail magazine assembly shown;

[0033] Figure 7 It is a cutting knife, anvil and Figure 2 A schematic structural diagram of a nail magazine seat in the nail magazine assembly shown;

[0034] Figure 8 yes Figure 2 A schematic structural diagram of the wedge block in the nail magazine assembly is shown.

[0035] The meanings of the marks in the figure are:

[0036] 1000, stapler;

[0037] 100. End actuator;

[0038] 10. Nail magazine assembly;

[0039] 11. Nail cartridge seat; 111. Accommodating groove; 112. Slide groove; 113. First reinforcement portion; 1130. Position limiting space; 114. First accommodating cavity; 115. Clamping portion; 12. Nail cartridge; 121. Clamping portion; 13. Wedge block; 131. Recessed portion; 132. Raised portion;

[0040] 1101. Main body; 1102. Second reinforcement;

[0041] 20. Cutting knife;

[0042] 21. First part; 22. Cutting part; 23. Second part;

[0043] 30. Anvil;

[0044] 31. Second accommodating chamber;

[0045] 200, handle;

[0046] 300. Shaft assembly. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0048] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0050] References to "one embodiment," "some embodiments," or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0051] In order to illustrate the technical solution of the present application, the following description is given with reference to specific drawings and embodiments.

[0052] In a surgery using a stapler for tissue anastomosis, the tissue to be anastomosed is generally clamped and bitten between the stapler magazine and the anvil, and then the handle of the stapler is pressed to fire the cutting knife to separate the tissue. At the same time, the staples set in the stapler magazine are pushed out by the wedge block to anastomose the tissue.

[0053] In the related art, when the stapler is anastomosing thicker tissues or performing deflected anastomosis, such as anastomosing bronchial tissues, gastric tissues and other tissues, the resistance to firing the cutting knife is very large, which makes it easy for the cutting knife rod to bend and deform during the firing process.

[0054] In order to solve the above problems, the present application provides a staple cartridge seat, a staple cartridge assembly, an end actuator and an anastomosis device, which can improve the problem of bending and deformation of the cutting knife rod during the firing process of the cutting knife in the related art.

[0055] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 This is a schematic structural diagram of a stapler 1000 according to one embodiment of the present application. Figure 2 yes Figure 1 The schematic structural diagram of the stapler assembly 10 in the stapler 1000 is shown in FIG. Figure 3 yes Figure 2 The cross-sectional view along the MM direction is shown.

[0056] In a first aspect, an embodiment of the present application provides a nail magazine seat 11 , comprising a main body 1101 and a first reinforcement portion 113 .

[0057] The main body 1101 is provided with a receiving groove 111 and a sliding groove 112 . The sliding groove 112 passes through the bottom wall of the receiving groove 111 . The sliding groove 112 is used to accommodate a portion of the cutting blade 20 , and the cutting blade 20 can move along the extending direction of the sliding groove 112 .

[0058] Specifically, the extending direction of the chute 112 may be the length direction of the main body 1101. Figure 2 The direction indicated by arrow A.

[0059] Please refer to Figure 4 、 Figure 5 and Figure 6 , Figure 4 The cutting blade 20 and Figure 2 The schematic structural diagram of the staple cartridge seat 11 and the wedge block 13 in the staple cartridge assembly 10 is shown. Figure 5 yes Figure 4 The schematic structural diagram of the cutting knife 20, the nail magazine seat 11 and the wedge block 13 is shown. Figure 6 yes Figure 2 A schematic structural diagram of the nail magazine seat 11 in the nail magazine assembly 10 is shown.

[0060] The first reinforcement portion 113 extends from the bottom of the receiving groove 111 and is located on both sides of the sliding groove 112 and extends along the extending direction of the sliding groove 112 to strengthen the structural strength of the main body 1101 .

[0061] Specifically, the first reinforcement portion 113 and the main body 1101 can be an integrally formed part, such as an integrally injection-molded part or an integrally machined part. Alternatively, the first reinforcement portion 113 and the main body 1101 can be connected by bonding, welding, clamping, screw connection or bolt connection. The two sides of the chute 112 can be the two sides of the chute 112 parallel to the width direction of the main body 1101, and the width direction of the main body 1101 can be Figure 2 and Figure 3 The direction indicated by arrow B.

[0062] The first reinforcements 113 on either side of the chute 112 define a limited space 1130, within which a portion of the cutting blade 20 is located. The first reinforcements 113 can slidably contact the cutting blade 20. The two opposing side walls of the chute 112 and the first reinforcements 113 on either side of the chute 112 can jointly limit the position of the cutting blade 20. The first reinforcements 113 can also prevent the opposing side walls of the chute 112 from easily deforming, thereby improving the problem of bending and deformation of the blade shank of the cutting blade 20 that can easily occur during the stapling and firing process.

[0063] As can be seen from the above, the nail magazine seat 11 provided in the embodiment of the present application has a main body 1101 provided with a receiving groove 111 and a slide groove 112, the slide groove 112 passes through the bottom wall of the receiving groove 111, the slide groove 112 is used to accommodate a part of the cutting knife 20 and the cutting knife 20 can move along the extension direction of the slide groove 112, and the first reinforcement portion 113 extends from the bottom of the receiving groove 111 and is located on both sides of the slide groove 112 and extends along the extension direction of the slide groove 112, so the main body can be strengthened by the first reinforcement portion 113 The structural strength of the part 1101 can make the main body 1101 and the first reinforcement part 113 have a better restraining effect on the knife rod of the cutting knife 20, thereby improving the problem that the knife rod of the cutting knife 20 is easily bent and deformed due to excessive firing force during the stapling firing process; thereby avoiding the problem that the nail magazines 12 on both sides are squeezed and deformed due to complete deformation of the knife rod, which also causes the nail magazines 12 to be squeezed and deformed, causing the nail holes of the nail magazine 12 and the nail grooves of the nail anvil 30 to be skewed, resulting in abnormal nailing.

[0064] Please refer to Figure 2 and Figure 3 In some embodiments, the thickness d of the first reinforcement portion 113 is 0.2 mm-0.9 mm, such as 0.2 mm, 0.4 mm, 0.5 mm, 0.7 mm or 0.9 mm.

[0065] By adopting the above solution, it is possible to avoid the first reinforcement portion 113 being too thin to effectively limit the cutting blade 20 , and also to avoid the first reinforcement portion 113 being too thick to occupy too much space in the accommodating groove 111 .

[0066] It should be noted that in Figure 3 In the embodiment, the thickness d of the first reinforcement portion 113 may be a dimension of the first reinforcement portion 113 along the direction indicated by arrow B.

[0067] Please refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 7 , Figure 7 The cutting blade 20, the nail anvil 30 and Figure 2 A schematic structural diagram of the nail magazine seat 11 in the nail magazine assembly 10 is shown.

[0068] In some embodiments, the nail magazine seat 11 also includes a second reinforcement portion 1102, which is arranged on the outside of the main body 1101, and the second reinforcement portion 1102 connects the main body 1101 on both sides of the slide groove 112 and defines a first accommodating cavity 114. The first accommodating cavity 114 is connected to the slide groove 112, and a portion of the cutting knife 20 is accommodated in the first accommodating cavity 114.

[0069] By adopting the above solution, a portion of the cutting blade 20 can be accommodated in the first accommodating cavity 114 to avoid interference or collision between the cutting blade 20 and other components, and the structural strength of the main body 1101 can be further enhanced by the second reinforcement portion 1102.

[0070] The second reinforcement portion 1102 and the main body 1101 can be integrally formed, such as an integral injection-molded part or a machined part. Alternatively, the second reinforcement portion 1102 and the main body 1101 can be connected by bonding, welding, clamping, screwing, or bolting. This arrangement allows for a more convenient connection between the second reinforcement portion 1102 and the main body 1101.

[0071] In this embodiment, the second reinforcement portion 1102 extends along the extending direction of the slide slot 112 . In this manner, the second reinforcement portion 1102 can further strengthen the structural strength of the main body 1101 in the extending direction of the slide slot 112 .

[0072] Optionally, the second reinforcement portion 1102 extends continuously from the proximal end of the chute 112 to the distal end of the chute 112 . Alternatively, the second reinforcement portion 1102 extends discontinuously from the proximal end of the chute 112 to the distal end of the chute 112 .

[0073] Specifically, the combination of a cross section of the chute 112 perpendicular to the direction in which the chute 112 extends and a cross section of the first accommodating cavity 114 perpendicular to the direction in which the chute 112 extends forms a "T" shape. This arrangement allows the first accommodating cavity 114 to be symmetrically arranged with respect to the chute 112, thereby enabling the second reinforcement portion 1102 to reinforce the structural strength of the two opposing side walls of the chute 112.

[0074] Please refer to Figures 1 to 8 , Figure 8 yes Figure 2 A schematic structural diagram of the wedge block 13 in the nail magazine assembly 10 is shown.

[0075] In a second aspect, an embodiment of the present application provides a nail magazine assembly 10 , comprising a nail magazine seat 11 , a nail magazine 12 , and a wedge block 13 as described in the first aspect.

[0076] The nail magazine 12 is arranged in the accommodating groove 111 and is connected to the main body 1101; the wedge block 13 is located between the bottom wall of the accommodating groove 111 and the nail magazine 12, and the wedge block 13 can move along the extension direction of the sliding groove 112.

[0077] The staple cartridge assembly 10 provided in the embodiment of the present application has a main body 1101 provided with a receiving groove 111 and a sliding groove 112, the sliding groove 112 passes through the bottom wall of the receiving groove 111, the sliding groove 112 is used to accommodate a portion of the cutting knife 20 and the cutting knife 20 can move along the extension direction of the sliding groove 112, and the first reinforcement portion 113 extends from the bottom of the receiving groove 111 and is located on both sides of the sliding groove 112 and extends along the extension direction of the sliding groove 112, so that the main body 1 can be reinforced by the first reinforcement portion 113. The structural strength of 101 can make the main body 1101 and the first reinforcement part 113 have a better restraining effect on the knife rod of the cutting knife 20, thereby improving the problem that the knife rod of the cutting knife 20 is easily bent and deformed due to excessive firing force during the stapling firing process; thereby avoiding the problem that the nail magazines 12 on both sides are squeezed and deformed due to complete deformation of the knife rod, which also causes the nail magazines 12 to be squeezed and deformed, causing the nail holes of the nail magazine 12 and the nail grooves of the nail anvil 30 to be skewed, resulting in abnormal nailing.

[0078] Please refer to Figure 2 、 Figure 3 and Figure 8 In this embodiment, the wedge block 13 is provided with a recessed portion 131 for accommodating the first reinforcement portion 113, and the inner wall of the recessed portion 131 is in slidable contact with the first reinforcement portion 113. This arrangement can prevent interference between the first reinforcement portion 113 and the wedge block 13, ensuring that the wedge block 13 functions normally.

[0079] Optionally, the wedge block 13 is provided with a protrusion 132, which is located between the first reinforcements 113 on both sides of the chute 112, and the protrusion 132 is in slidable contact with the first reinforcement 113. This arrangement can make the wedge block 13 more stable when moving along the extension direction of the chute 112.

[0080] For example, please refer to Figure 3 The maximum dimension D0 of the main body 1101 along the left-right direction is the outer diameter of the forceps head, which is determined by the size of the stamp used in clinical surgical instruments. D0 is generally 12.8 mm or 15.6 mm. When D0 is 12.8 mm, D1 is generally around 3 mm due to the width requirements of the internal structure of the push-stitch cartridge 12. Furthermore, the wall thickness D2 of the nail holes in the cartridge 12 is limited by the thickness D3 of the protruding portion 132 that moves within the wedge block 13 and the minimum wall thickness required for molding. Furthermore, D3 is limited by the thickness of the cutting blade 20. Therefore, the thickness d of the first reinforcement portion 113 in the center of the cartridge seat 11 is also limited, generally around 0.4 mm. When D0 is 15.6 mm, the overall dimensions of the entire cartridge 12 and cartridge seat 11 are increased. Therefore, when D1 and D3 are constant, the values ​​of D2 and d are also increased, thereby further enhancing the structural strength of the main body 1101 by the first reinforcement portion 113.

[0081] Please refer to Figure 2 、 Figure 3 and Figure 6 In some embodiments, two opposite side walls of the nail magazine seat 11 are provided with a clamping portion 115, and the nail magazine 12 is provided with a clamping portion 121 corresponding to the clamping portion 115, and the clamping portion 121 is detachably engaged with the clamping portion 115.

[0082] By adopting the above solution, the assembly and disassembly of the nail magazine seat 11 and the nail magazine 12 can be achieved more conveniently.

[0083] Specifically, the retaining portion 115 can be a slot, and the engaging portion 121 can be a block. Alternatively, the retaining portion 115 can be a block, and the engaging portion 121 can be a slot. Multiple retaining portions 115 can be provided, and the plurality of retaining portions 115 can be spaced apart along the extension direction of the slideway 112, with the engaging portions 121 corresponding to each retaining portion 115. The engaging portions 121 are provided on the outer wall of the staple cartridge 12.

[0084] Please refer to Figures 1 to 8 In a third aspect, an embodiment of the present application provides an end actuator 100 , comprising a nail magazine assembly 10 , a cutting knife 20 and a nail anvil 30 as in the second aspect.

[0085] The cutting knife 20 can slide in the slide groove 112; the anvil 30 is arranged opposite to the nail magazine assembly 10 and is rotatably connected to the nail magazine seat 11 to achieve opening or closing.

[0086] The end actuator 100 provided in the embodiment of the present application has a main body 1101 provided with a receiving groove 111 and a slide groove 112, the slide groove 112 passes through the bottom wall of the receiving groove 111, the slide groove 112 is used to accommodate a part of the cutting knife 20 and the cutting knife 20 can move along the extension direction of the slide groove 112, and the first reinforcement portion 113 extends from the bottom of the receiving groove 111 and is located on both sides of the slide groove 112 and extends along the extension direction of the slide groove 112, so the main body can be strengthened by the first reinforcement portion 113. The structural strength of 1101 can make the main body 1101 and the first reinforcement part 113 have a better restraining effect on the knife rod of the cutting knife 20, thereby improving the problem that the knife rod of the cutting knife 20 is easily bent and deformed due to excessive firing force during the stapling firing process; thereby avoiding the problem that the nail magazines 12 on both sides are squeezed and deformed due to complete deformation of the knife rod, which also causes the nail magazines 12 to be squeezed and deformed, causing the nail holes of the nail magazine 12 and the nail grooves of the nail anvil 30 to be skewed, resulting in abnormal nailing.

[0087] In this embodiment, the anvil 30 is provided with a second accommodating cavity 31, and the cutting knife 20 includes a first part 21, a cutting part 22 and a second part 23 connected in sequence. The first part 21 is located outside the main body 1101, and the first part 21 is in slidable contact with the main body 1101. The cutting part 22 is slidably provided in the slide groove 112, and the second part 23 is slidably provided in the second accommodating cavity 31.

[0088] In a fourth aspect, an embodiment of the present application provides a stapler 1000 , which includes a handle 200 , an axis assembly 300 , and an end actuator 100 of the stapler 1000 according to the third aspect, wherein the axis assembly 300 is connected between the handle 200 and the end actuator 100 .

[0089] The stapler 1000 provided in the embodiment of the present application has a main body 1101 provided with a receiving groove 111 and a slide groove 112, the slide groove 112 passes through the bottom wall of the receiving groove 111, the slide groove 112 is used to accommodate a portion of the cutting knife 20 and the cutting knife 20 can move along the extension direction of the slide groove 112, and the first reinforcement portion 113 extends from the bottom of the receiving groove 111 and is located on both sides of the slide groove 112 and extends along the extension direction of the slide groove 112, so the main body 1001 can be strengthened by the first reinforcement portion 113. The structural strength of 101 can make the main body 1101 and the first reinforcement part 113 have a better restraining effect on the knife rod of the cutting knife 20, thereby improving the problem that the knife rod of the cutting knife 20 is easily bent and deformed due to excessive firing force during the stapling firing process; thereby avoiding the problem that the nail magazines 12 on both sides are squeezed and deformed due to complete deformation of the knife rod, which also causes the nail magazines 12 to be squeezed and deformed, causing the nail holes of the nail magazine 12 and the nail grooves of the nail anvil 30 to be skewed, resulting in abnormal nailing.

[0090] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A nail magazine seat, characterized in that: include: A main body (1101), wherein the main body (1101) is provided with a receiving groove (111) and a sliding groove (112), wherein the sliding groove (112) passes through the bottom wall of the receiving groove (111), and the sliding groove (112) is used to accommodate a portion of the cutting knife (20), and the cutting knife (20) can move along the extension direction of the sliding groove (112); A first reinforcing portion (113) extends from the bottom of the accommodating groove (111), is located on both sides of the sliding groove (112), and extends along the extension direction of the sliding groove (112), so as to strengthen the structural strength of the main body (1101).

2. The staple cartridge holder according to claim 1, characterized in that: The thickness of the first reinforcement portion (113) is 0.2 mm to 0.9 mm.

3. The nail magazine seat according to claim 1 or 2, characterized in that: The nail magazine seat (11) also includes a second reinforcement portion (1102), which is arranged on the outside of the main body (1101), and the second reinforcement portion (1102) connects the main body (1101) on both sides of the slide groove (112) and defines a first accommodating cavity (114), the first accommodating cavity (114) is connected to the slide groove (112), and a part of the cutting knife (20) is accommodated in the first accommodating cavity (114).

4. The staple cartridge holder according to claim 3, characterized in that: A combination of a cross section of the slide groove (112) along a direction perpendicular to the extension of the slide groove (112) and a cross section of the first accommodating cavity (114) along a direction perpendicular to the extension of the slide groove (112) is distributed in a "T" shape.

5. A staple cartridge assembly, characterized in that: include: The nail magazine seat (11) according to any one of claims 1 to 4; A nail magazine (12), the nail magazine (12) is arranged in the accommodating groove (111), and the nail magazine (12) is connected to the main body (1101); A wedge block (13) is located between the bottom wall of the accommodating groove (111) and the nail magazine (12), and the wedge block (13) can move along the extension direction of the sliding groove (112).

6. The staple cartridge assembly according to claim 5, wherein: The wedge block (13) is provided with a recessed portion (131), the recessed portion (131) is used to accommodate the first reinforcing portion (113), and the inner wall of the recessed portion (131) is in slidable contact with the first reinforcing portion (113).

7. The staple cartridge assembly according to claim 5, wherein: The wedge block (13) is provided with a protrusion (132), and the protrusion (132) is located between the first reinforcement parts (113) on both sides of the slide groove (112), and the protrusion (132) is in slidable contact with the first reinforcement part (113).

8. The staple cartridge assembly according to claim 5, wherein: The two opposite side walls of the nail magazine seat (11) are both provided with a clamping portion (115), and the nail magazine (12) is provided with a clamping portion (121) corresponding to the clamping portion (115), and the clamping portion (121) is detachably clamped with the clamping portion (115).

9. An end actuator, characterized in that: include: The staple cartridge assembly (10) according to any one of claims 5 to 8; a cutting knife (20), wherein the cutting knife (20) is slidable in the sliding groove (112); A nail anvil (30) is arranged opposite to the nail magazine assembly (10) and is rotatably connected to the nail magazine seat (11) to achieve opening or closing.

10. A stapler, characterized in that: The stapler (1000) includes a handle (200), a shaft assembly (300), and an end actuator (100) according to claim 9, wherein the shaft assembly (300) is connected between the handle (200) and the end actuator (100).

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