Staple cartridge for a skin stapler

Abstract

The utility model belongs to the field of medical apparatus and instruments, especially relate to a nail bin of skin suturing device. The utility model improves the nail bin structure of skin suturing device, first, the nail bin nail board and nail bin casing of the utility model adopt the mode that locking hole and locking buckle are connected to realize the assembly between the nail bin bottom plate and the nail bin casing, can realize the disassembly of the nail bin nail board through the corresponding tool in the process of recycling and reusing later, and the recycling and reusing of the nail bin are convenient, secondly, the utility model realizes the pre-fixing of the nail plate and the nail bin casing under the condition that the nail bin bottom plate is not assembled, on one hand, the already assembled parts can be fixed, the product is not prone to the problem of part falling when circulating on the production line, on the other hand, the installation of subsequent parts is also convenient.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, and specifically relates to a staple cartridge for a skin suture device. Background Technology

[0002] After years of clinical application in surgical departments such as general surgery, orthopedics, obstetrics and gynecology, burn surgery, emergency medicine, cardiothoracic surgery, and neurosurgery, the skin suture device has proven to be quick and easy for suturing wounds 10-30cm long. It represents a significant advancement in suturing techniques and is an invaluable assistant to surgeons, making it a medical product worthy of widespread application.

[0003] In older skin suture devices, the needle removal mechanism used a needle removal plate located between the needle holder and the guide plate. The needle removal function was achieved by the pressure exerted by closing and releasing the handle. During this process, the closing of the handle corresponds to the needle forming process; once the handle closes, the needle is fully formed. The movement of the needle removal plate during this process is primarily due to the pressure exerted during needle formation, causing it to retract backward. When the handle is released, the formed needle pushes the needle removal plate away from the anvil of the guide plate. This uncontrolled movement of the needle removal plate throughout the process can potentially affect the effectiveness of needle removal.

[0004] Furthermore, in existing skin suture devices, the staple cartridge base plate is generally fixed by ultrasonic welding to obtain an integral skin suture device. Therefore, it is necessary to optimize the production line layout and purchase ultrasonic welding equipment, which makes the equipment cost required for staple cartridge production high, thus affecting the product cost. The staple cartridges of existing skin suture devices can only be disassembled and scrapped after use and cannot be reused. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention improves the staple cartridge of the skin suture device, enhancing the staple pushing effect. Furthermore, the staple cartridge adopts an assembled structure, reducing production costs and facilitating subsequent reuse.

[0006] The technical solution of this utility model is as follows:

[0007] A staple cartridge for a skin suture device includes a staple cartridge housing, a staple cartridge base plate, a staple plate, a staple pusher plate, staples, a staple release plate, and a forming assembly. The staple cartridge housing is characterized by: a mounting groove on its bottom surface; symmetrical support surfaces on both sides of the mounting groove; side plates on the staple cartridge housing along the edges of the support surfaces; multiple positioning posts arranged along the length of the support surfaces, with the positioning posts integrally formed with the side plates; grooves on both sides of the staple plate along its length; and symmetrical mounting posts extending through the support surfaces at the front end of the staple cartridge housing. The mounting hole includes a groove on the surface of the positioning post near the control side, which is flush with the support surface. It also includes a connector plate with a connector rod that mates with the mounting hole. The edge of the groove in the nail plate is embedded in the groove of the positioning post, and the end of the connector rod protrudes from the support surface, with its sidewall abutting against the end face of the nail plate. A locking hole is provided on the side plate next to the positioning post. Several locking buckles are arranged along the length of the surface of the nail cartridge base plate, and these buckles engage with the locking holes to connect the nail cartridge base plate to the nail cartridge housing.

[0008] Furthermore, the molding assembly includes a molding plate and a support. The support has a protrusion with an insertion groove, and both ends of the insertion groove extend through the side of the protrusion. Fixed side plates are provided on the support on both sides of the protrusion. One end of the molding plate is inserted into the insertion groove, and both ends of the molding plate abut against the fixed side plates in the width direction. The assembly also includes a locking structure provided on the molding plate and the fixed side plates. The locking structure is used to lock the molding plate in the insertion direction of the insertion groove.

[0009] Furthermore, the end of the molding plate is provided with an isosceles trapezoidal groove, and the embedded groove is provided with an isosceles trapezoidal protrusion. The isosceles trapezoidal groove and the isosceles trapezoidal protrusion cooperate, and the height of the isosceles trapezoidal groove is greater than or equal to the height of the isosceles trapezoidal protrusion.

[0010] Furthermore, the locking structure includes a locking boss on the fixed side plate and a locking groove on the molding plate. When the molding plate and the bracket are assembled, the locking boss fits into the locking groove, and the plane of the locking boss abuts against the upper side wall of the locking groove.

[0011] Furthermore, the ejector plate is positioned between the nail plate and the nail magazine bottom plate. A stitching nail forming plate is provided at the front end of the nail plate, and clearance grooves are provided on the nail plates located on both sides of the stitching nail forming plate. An upward-curving ejector plate is provided at the front end of the ejector plate, and the ejector plate fits into the clearance groove. A transition slope is provided from the top of the ejector plate to the side of the ejector plate. The distance between the upper ends of the transition slopes of the two ejector plates is less than the inner width of the stitching nail after forming. The tail of the ejector plate protrudes from the rear end of the nail plate and the nail magazine bottom plate, and a pressure plate that cooperates with the firing handle is provided at the tail of the ejector plate.

[0012] Furthermore, the nail removal plate has nail removal side plates formed by bending downwards on both sides, and the nail removal side plates are provided with limiting grooves. The nail chamber bottom plate is provided with a front limiting block and a rear limiting block, which are located in the limiting grooves.

[0013] Furthermore, the tail end of the nail cartridge housing is provided with a groove, the groove is provided with a slider, one end of the slider is provided with a connecting post, the connecting post is provided with a nail-pushing spring, the nail-pushing spring is connected to the nail-pushing plate, and the other end of the slider is provided with a push rod, the end face of the push rod abuts against the pressure plate at the tail end of the nail-removing plate.

[0014] Furthermore, the inner wall of the groove is symmetrically provided with limiting protrusions, which are used to limit the movement distance of the slider in the groove. The limiting protrusions are provided with guide slopes, and the side of the slider is provided with a slope and a straight surface.

[0015] Furthermore, it also includes a through groove that passes through the slider and push rod.

[0016] Furthermore, the push rod is equipped with an auxiliary spring, the other end of which abuts against the pressure plate at the tail of the nail-removing plate.

[0017] In summary, this utility model has the following beneficial effects:

[0018] This invention improves the staple cartridge structure of a skin suture device. First, the staple plate and the staple cartridge housing are connected by locking holes and locking buckles to achieve assembly between the staple cartridge base plate and the staple cartridge housing. During later recycling and reuse, the staple plate can be disassembled using appropriate tooling, facilitating the recycling and reuse of the staple cartridge. Second, this invention achieves pre-fixation of the staple plate to the staple cartridge housing even when the staple cartridge base plate is not assembled. Specifically, the groove of the staple plate is embedded in the groove of the positioning post, achieving a limit perpendicular to the embedding direction. Then, after the insertion rod is inserted, the end of the insertion rod abuts against the end face of the staple plate, limiting the embedding direction of the staple plate and the groove. On the one hand, this can fix the assembled parts, making it less likely for parts to fall off when the product flows on the production line; on the other hand, it also facilitates the installation of subsequent parts. Attached Figure Description

[0019] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the nail cartridge housing according to an embodiment of the present utility model;

[0021] Figure 3 This is a perspective view of the staple cartridge housing (excluding the plug plate) according to an embodiment of the present invention;

[0022] Figure 4 This is a bottom view of a staple cartridge (excluding the staple cartridge base plate) according to an embodiment of the present invention;

[0023] Figure 5 for Figure 4 A cross-sectional view of AA in the diagram;

[0024] Figure 6 This is a three-dimensional schematic diagram of a molding component according to an embodiment of the present utility model;

[0025] Figure 7 This is a cross-sectional schematic diagram of a molding component according to an embodiment of the present utility model;

[0026] Figure 8 This is a perspective view of an embodiment of the present utility model;

[0027] Figure 9 for Figure 8 Enlarged view of point C in the middle;

[0028] Figure 10 for Figure 4 A cross-sectional view of BB;

[0029] Figure 11 This is a perspective view of another embodiment of the present utility model;

[0030] In the diagram, 1 is the staple cartridge housing, 10 is the mounting groove, 100 is the support surface, 11 is the side plate, 101 is the positioning post, 12 is the mounting hole, 1010 is the groove, 102 is the locking hole, 13 is the groove, 14 is the slider, 140 is the connecting post, 141 is the push pin spring, 142 is the push rod, 130 is the limiting protrusion, 1301 is the guide slope, 143 is the slope, 144 is the straight surface, 145 is the through groove, and 1420 is the auxiliary spring.

[0031] 2 is the base plate of the nail chamber, 20 is the locking buckle, 21 is the front limit block, and 22 is the rear limit block.

[0032] 3 is the nail plate, 30 is the groove, 31 is the stitching nail forming plate, and 32 is the clearance groove.

[0033] 4 is a push nail board.

[0034] 5 is the suture staple, 6 is the staple removal plate, 60 is the staple removal corner plate, 601 is the transition slope, 62 is the pressure plate, 61 is the staple removal side plate, and 610 is the limiting groove.

[0035] 7 is a molding component, 70 is a molding plate, 71 is a bracket, 710 is a protrusion, 711 is an embedding groove, 712 is a fixed side plate, 72 is a locking structure, 701 is an isosceles trapezoidal groove, 713 is an isosceles graphic protrusion, 7120 is a locking boss, and 702 is a locking groove.

[0036] 8 represents the connector plate, and 80 represents the connector rod. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0038] It should be noted that when a component is referred to as being "set on" or "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "fixed to" another component, or "fixedly connected" to another component, the fixing method can be detachable or non-detachable. When a component is considered to be "connected" or "rotatably connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] In this invention, terms such as "first," "second," and "third" are used not to represent specific quantities or orders, but merely to distinguish names.

[0041] join Figures 1 to 5As shown, the staple cartridge of a skin suture device includes a staple cartridge housing 1, a staple cartridge base plate 2, a staple plate 3, a staple pusher plate 4, staples 5, a staple release plate 6, and a forming assembly 7. The staple cartridge housing 1 has a mounting groove 10 on its bottom surface, and symmetrical support surfaces 100 are provided on both sides of the mounting groove 10. Side plates 11 are provided on the staple cartridge housing 1 along the edge of the support surfaces 100. Multiple positioning posts 101 are arranged along the length direction on the support surfaces 100, and the positioning posts 101 are integrally formed with the side plates 11. Grooves 30 are formed on both sides of the staple plate 3 along its length direction. The front end of the staple cartridge housing 1 has symmetrical mounting posts that penetrate to the support surfaces. The mounting hole 12 has a groove 1010 on the surface of the positioning post 101 near the control side. The groove is flush with the support surface. It also includes a plug plate 8. The plug plate 8 has a plug rod 80 that mates with the mounting hole. The edge of the groove of the nail plate 3 is embedded in the groove 1010 of the positioning post 101. The end of the plug rod 80 is exposed on the support surface and the side wall of the plug rod abuts against the end face of the nail plate. A locking hole 102 is provided on the side plate next to the positioning post 101. Several locking buckles 20 are arranged along the length direction on the surface of the nail cartridge bottom plate 2. The locking buckles 20 mate with the locking holes to connect the nail cartridge bottom plate and the nail cartridge shell.

[0042] This invention improves the staple cartridge structure of a skin suture device. First, the staple plate and the staple cartridge housing are connected by locking holes and locking buckles to achieve assembly between the staple cartridge base plate and the staple cartridge housing. During later recycling and reuse, the staple plate can be disassembled using appropriate tooling, facilitating the recycling and reuse of the staple cartridge. Second, this invention achieves pre-fixation of the staple plate to the staple cartridge housing even when the staple cartridge base plate is not assembled. Specifically, the groove of the staple plate is embedded in the groove of the positioning post, achieving a limit perpendicular to the embedding direction. Then, after the insertion rod is inserted, the end of the insertion rod abuts against the end face of the staple plate, limiting the embedding direction of the staple plate and the groove. On the one hand, this can fix the assembled parts, making it less likely for parts to fall off when the product flows on the production line; on the other hand, it also facilitates the installation of subsequent parts.

[0043] Further limitations are specified on the molding components of the staple cartridge, see [link to documentation]. Figures 6 to 7As shown, the molding assembly 7 includes a molding plate 70 and a support 71. The support 71 has a protrusion 710 with an insertion groove 711. Both ends of the insertion groove 711 extend through the side of the protrusion. Fixed side plates 712 are provided on the support on both sides of the protrusion 710. One end of the molding plate 70 is embedded in the insertion groove 711, and both ends of the molding plate 70 abut against the fixed side plates 712 in the width direction. The assembly also includes a locking structure 72 provided on the molding plate 70 and the fixed side plates 712. The locking structure is used to lock the molding plate in the insertion direction of the insertion groove. The molding assembly is improved here. The molding assembly of this application is assembled by embedded assembly. The molding plate is directly inserted into the insertion groove and fixed by the locking structure. The assembly is convenient and separate processing is realized, which simplifies the product structure and reduces the processing cost.

[0044] See further Figure 7 As shown, the end of the molding plate 70 is provided with an isosceles trapezoidal groove 701, and the embedding groove 711 is provided with an isosceles trapezoidal protrusion 713. The isosceles trapezoidal groove and the isosceles trapezoidal protrusion cooperate, and the height of the isosceles trapezoidal groove is greater than or equal to the height of the isosceles trapezoidal protrusion. Here, the connection between the molding plate and the bracket is further improved. The provided isosceles trapezoidal protrusion improves the connection strength between the protrusion above the embedding groove and the bracket, avoiding the problem of the protrusion on the bracket breaking during use. Furthermore, the cooperation between the provided isosceles trapezoidal groove and the isosceles trapezoidal protrusion enables the molding plate and the bracket to be installed in an centered manner.

[0045] See further Figure 7 As shown, the locking structure 72 includes a locking boss 7120 on the fixed side plate 712 and a locking groove 702 on the molding plate 70. When the molding plate and the bracket are assembled, the locking boss fits into the locking groove, and the plane of the locking boss abuts against the upper side wall of the locking groove. The locking structure is used to position the bracket and the molding plate. The end of the molding plate fits into the bottom surface of the insertion groove to achieve the positioning of the molding plate in the insertion direction. Here, the plane of the locking boss and the upper side wall of the locking groove are used to achieve the positioning of the molding plate in the extraction direction, ensuring the positioning reliability between the molding plate and the bracket. Moreover, there is no margin in the insertion or extraction direction of the molding plate, which is more conducive to the firing accuracy of the skin suture device.

[0046] See Figure 8 and Figure 9As shown, the nail removal plate 6 is disposed between the nail plate 3 and the nail cartridge bottom plate 2. A suture nail forming plate 31 is provided at the front end of the nail plate 3. Relief grooves 32 are provided on the nail plates located on both sides of the suture nail forming plate 31. An upward-curving nail removal angle plate 60 is provided at the front end of the nail removal plate 6, and the nail removal angle plate 60 fits within the relief groove 32. A transition slope 601 is provided from the top of the nail removal angle plate to the side of the nail removal plate. The distance between the upper ends of the transition slopes of the two nail removal angle plates is less than the inner width of the suture nail after forming. The tail of the nail removal plate protrudes from the rear end of the nail plate and the nail cartridge bottom plate, and the tail of the nail removal plate 6 is provided with… The device includes a pressure plate 62 that works with the firing handle. The structure of the staple removal plate has been improved by adding a staple removal angle plate at the front end. The distance between the transition slopes of the two angle plates is limited, allowing the outer surfaces of the angle plates to enter the interior of the formed staple. During the forward movement of the staple removal plate, the formed staple can be stably pushed out from the forming plate of the staple plate, ensuring reliable staple removal. Furthermore, this invention uses the handle of the skin suture device acting on the pressure plate to drive the staple removal plate forward, eliminating the need for other power sources, simplifying the device structure, and improving its reliability.

[0047] See further Figure 10 As shown, the nail removal plate 6 has two sides bent downwards to form nail removal side plates 61. The nail removal side plates 61 are provided with limiting grooves 610. The nail cartridge bottom plate 2 is provided with a front limiting block 21 and a rear limiting block 22, which are located in the limiting grooves. The lower end of the nail removal side plate abuts against the nail cartridge bottom plate and can move back and forth. The width of the limiting groove is greater than the distance between the front limiting block and the rear limiting block. When the nail removal plate moves back and forth, the front limiting block is used to limit the distance the nail removal plate moves backward, and the rear limiting block is used to limit the distance the nail removal plate moves forward.

[0048] See Figure 11 As shown, the tail of the staple cartridge housing 1 is provided with a groove 13, and a slider 14 is provided in the groove 13. One end of the slider 14 is provided with a connecting post 140, and a staple pusher spring 141 is provided on the connecting post 140. The staple pusher spring 141 is connected to the staple pusher plate 4. The other end of the slider 14 is provided with a push rod 142. The end face of the push rod 142 abuts against the pressure plate 62 at the tail of the staple removal plate. The staple pusher spring is always in a compressed state. When the handle of the skin suture device is fired, the force of the handle on the pressure plate at the tail of the staple removal plate disappears, and the staple pusher spring releases part of the compression, causing the slider to move backward in the groove. The push rod acts on the pressure plate of the staple removal plate, causing the staple removal plate to also move backward, thereby ensuring that the staple removal corner plate is located behind the staple to be formed, thus ensuring the staple removal reliability of the staple removal plate. The distance the staple removal plate moves backward is limited by the aforementioned front limit block.

[0049] See Figure 11As shown, the inner wall of the groove 13 is symmetrically provided with limiting protrusions 130. The limiting protrusions are used to limit the movement distance of the slider in the groove. The limiting protrusion 130 is provided with a guide slope 1301. The side of the slider 14 is provided with a slope 143 and a straight surface 144. Preferably, the distance between the surface of the limiting protrusion and the surface of the slider is less than the length of the connecting post. When the slider abuts against the limiting protrusion, the connecting post is still located in the nail cartridge housing, so that the slider will not fall out of the groove. When the slope of the slider cooperates with the guide slope of the limiting protrusion, it plays a guiding role on the one hand, and also applies a force to the slider on the other hand, causing the slider and the push rod to deform, which facilitates the installation of the slider.

[0050] See Figure 11 As shown, it also includes a through groove 145, which passes through the slider 14 and the push rod 142. The through groove makes the rear half of the slider a deformable structure. When a force is applied to the push rod, the slider and the push rod will deform inward, making the width of the slider less than the distance between the two limiting protrusions, which facilitates the installation of the slider. When the force is small, the slider and the push rod return to their original shape. At this time, the width of the slider is greater than the distance between the two limiting protrusions. The limiting protrusions limit the slider and prevent the slider from falling out of the sliding groove.

[0051] Furthermore, the push rod 142 is provided with an auxiliary spring 1420, the other end of which abuts against the pressure plate at the tail of the nail removal plate; since the distance that the slider can move is relatively short, the addition of the auxiliary spring can ensure that the movement of the slider can be reliably transmitted to the nail removal plate.

[0052] In summary, this utility model has the following beneficial effects:

[0053] This invention improves the staple cartridge structure of a skin suture device. First, the staple plate and the staple cartridge housing are connected by locking holes and locking buckles to achieve assembly between the staple cartridge base plate and the staple cartridge housing. During later recycling and reuse, the staple plate can be disassembled using appropriate tooling, facilitating the recycling and reuse of the staple cartridge. Second, this invention achieves pre-fixation of the staple plate to the staple cartridge housing even when the staple cartridge base plate is not assembled. Specifically, the groove of the staple plate is embedded in the groove of the positioning post, achieving a limit perpendicular to the embedding direction. Then, after the insertion rod is inserted, the end of the insertion rod abuts against the end face of the staple plate, limiting the embedding direction of the staple plate and the groove. On the one hand, this can fix the assembled parts, making it less likely for parts to fall off when the product flows on the production line; on the other hand, it also facilitates the installation of subsequent parts.

[0054] Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A staple cartridge for a skin suture device, comprising a staple cartridge housing, a staple cartridge base plate, a staple plate, a staple pusher plate, staples, a staple release plate, and a forming assembly, characterized in that: The staple cartridge housing has a mounting groove on its bottom surface, and symmetrical support surfaces on both sides of the mounting groove. Side plates are provided on the staple cartridge housing along the edge of the support surfaces. Multiple positioning posts are arranged along the length of the support surfaces, and the positioning posts are integrally formed with the side plates. Grooves are formed on both sides of the staple plate along its length. The front end of the staple cartridge housing has symmetrical mounting holes extending through to the support surfaces. A groove is provided on the surface of the positioning post near the control side, flush with the support surface. A plug-in plate is also included, with a plug-in rod that mates with the mounting holes. The edge of the groove in the staple plate is embedded in the groove of the positioning post. The end of the plug-in rod protrudes from the support surface, and its sidewall abuts against the end face of the staple plate. Locking holes are provided on the side plates next to the positioning posts. Several locking buckles are arranged along the length of the surface of the staple cartridge bottom plate, and these buckles mate with the locking holes to connect the staple cartridge bottom plate to the staple cartridge housing.

2. The staple cartridge of the skin suture device according to claim 1, characterized in that: The molding assembly includes a molding plate and a support. The support has a protrusion with an insertion groove, and both ends of the insertion groove extend through the side of the protrusion. Fixed side plates are provided on the support on both sides of the protrusion. One end of the molding plate is inserted into the insertion groove, and both ends of the molding plate abut against the fixed side plates in the width direction. The assembly also includes a locking structure provided on the molding plate and the fixed side plates. The locking structure is used to lock the molding plate in the insertion direction of the insertion groove.

3. The staple cartridge of the skin suture device according to claim 2, characterized in that: The end of the molding plate is provided with an isosceles trapezoidal groove, and the embedded groove is provided with an isosceles trapezoidal protrusion. The isosceles trapezoidal groove and the isosceles trapezoidal protrusion cooperate, and the height of the isosceles trapezoidal groove is greater than or equal to the height of the isosceles trapezoidal protrusion.

4. The staple cartridge of the skin suture device according to claim 3, characterized in that: The locking structure includes a locking boss on the fixed side plate and a locking groove on the molding plate. When the molding plate and the bracket are assembled, the locking boss fits into the locking groove, and the plane of the locking boss abuts against the upper side wall of the locking groove.

5. The staple cartridge of the skin suture device according to claim 1, characterized in that: The ejector plate is positioned between the nail plate and the nail magazine bottom plate. A stitching nail forming plate is provided at the front end of the nail plate, and clearance grooves are provided on the nail plates located on both sides of the stitching nail forming plate. An upturned ejector angle plate is provided at the front end of the ejector plate, and the ejector angle plate fits into the clearance groove. A transition slope is provided from the top of the ejector angle plate to the side of the ejector plate. The distance between the upper ends of the transition slopes of the two ejector angle plates is less than the inner width of the stitching nail after forming. The tail of the ejector plate protrudes from the rear end of the nail plate and the nail magazine bottom plate, and a pressure plate that cooperates with the firing handle is provided at the tail of the ejector plate.

6. The staple cartridge of the skin suture device according to claim 5, characterized in that: The nail removal plate has nail removal side plates formed by bending downwards on both sides. The nail removal side plates are provided with limiting grooves. The nail chamber bottom plate is provided with a front limiting block and a rear limiting block, which are located in the limiting grooves.

7. The staple cartridge of the skin suture device according to claim 5, characterized in that: The tail end of the nail cartridge housing is provided with a groove, and a slider is provided in the groove. One end of the slider is provided with a connecting post, and a nail-pushing spring is provided on the connecting post. The nail-pushing spring is connected to the nail-pushing plate. The other end of the slider is provided with a push rod, and the end face of the push rod abuts against the pressure plate at the tail end of the nail-removing plate.

8. The staple cartridge of the skin suture device according to claim 7, characterized in that: The inner wall of the groove is symmetrically provided with limiting protrusions, which are used to limit the movement distance of the slider in the groove. The limiting protrusions are provided with guide slopes, and the side of the slider is provided with a slope and a straight surface.

9. The staple cartridge of the skin suture device according to claim 7, characterized in that: It also includes a through groove that passes through the slider and push rod.

10. The staple cartridge of the skin suture device according to claim 7, characterized in that: The push rod is equipped with an auxiliary spring, and the other end of the auxiliary spring abuts against the pressure plate at the tail of the nail removal plate.

Images